SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, D.C.  20549

                                    SCHEDULE 13D
                     Under the Securities Exchange Act of 1934
                               (Amendment No.     )*

                               Micro Therapeutics, Inc.
                     ------------------------------------------
                                   (Name of Issuer)

                      Common Stock, par value $0.001 per share
                     ------------------------------------------
                           (Title of Class of Securities)

                                      59500W100
                     ------------------------------------------
                                    (CUSIP Number)


                    Jose M. de Lasa, 100 Abbott Park Road
               Abbott Park, Illinois 60064-3500; Phone 847 937 8905
               ----------------------------------------------------
                (Name, Address and Telephone Number of Person
               Authorized to Receive Notices and Communications)

                                   August 19, 1998
               -------------------------------------------------------
               (Date of Event which Requires Filing of this Statement)


If the filing person has previously filed a statement on Schedule 13G to 
report the acquisition that is the subject of this Schedule 13D, and is 
filing this schedule because of Section Section 240.13d-1(e), 240.13d-1(f) or 
240.13(d)-1(g), check the following box [ _ ].

NOTE: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits.  See Section 240.13d-7(b) for
other parties to whom copies should be sent.

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).


                             Page 1 of 9 pages



CUSIP No. 59500W100
- -------------------------------------------------------------------------------
1)   NAME OF REPORTING PERSON
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          Abbott Laboratories
          IRS Identification No. 36-0698440
- -------------------------------------------------------------------------------
2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP  (a)  [   ]
                                                       (b)  [   ]
- -------------------------------------------------------------------------------
3)   SEC USE ONLY

- -------------------------------------------------------------------------------
4)   SOURCE OF FUNDS

     OO (see Item 3 below)
- -------------------------------------------------------------------------------
5)   CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
     TO ITEMS 2(d) OR 2(e)                                       [   ]
- -------------------------------------------------------------------------------
6)   CITIZENSHIP OR PLACE OF ORGANIZATION

     Illinois
- -------------------------------------------------------------------------------
NUMBER OF           (7)  SOLE VOTING POWER
SHARES                   384,615
BENEFICIALLY             ------------------------------------------------------
OWNED BY            (8)  SHARED VOTING POWER
EACH                     0
REPORTING                ------------------------------------------------------
PERSON WITH         (9)  SOLE DISPOSITIVE POWER
                         384,615
                         ------------------------------------------------------
                    (10) SHARED DISPOSITIVE POWER
                         0
- -------------------------------------------------------------------------------
11)  AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     384,615
- -------------------------------------------------------------------------------
12)  CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
     SHARES (SEE INSTRUCTIONS)                              [   ]
- -------------------------------------------------------------------------------
13)  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     9.7% (see Item 5 below)
- -------------------------------------------------------------------------------
14)  TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

     CO
- -------------------------------------------------------------------------------

                               Page 2 of 9 pages



ITEM 1.   SECURITY AND ISSUER

          This statement relates to shares of the common stock, par value $0.001
per share (the "Common Stock"), of Micro Therapeutics, Inc., a Delaware
corporation (the "Issuer"), whose principal executive offices are located at
1062-F Calle Negocio, San Clemente, California  92673.

ITEM 2.   IDENTITY AND BACKGROUND

          (a) - (c), and (f)  The person filing this statement is Abbott
Laboratories ("Abbott"), an Illinois corporation.  Abbott's principal business
is the discovery, development, manufacture, and sale of a broad and diversified
line of health care products and services.  Abbott's principal office is located
at 100 Abbott Park Road, Abbott Park, Illinois 60064-3500.

          The names, citizenship, business addresses, present principal
occupation or employment and the name, and the principal business and address of
any corporation or other organization in which such employment is conducted of
the directors and executive officers of Abbott are as set forth in Exhibit 1
hereto and incorporated herein by this reference.

          (d) and (e)    Neither Abbott, nor to the best of its knowledge, any
person listed on Exhibit 1 has during the last five years (i) been convicted in
a criminal proceeding (excluding traffic violations or similar misdemeanors) or
(ii) been a party to a civil proceeding of a judicial or administrative body of
competent jurisdiction and as a result of such proceeding was or is subject to a
judgment, decree or final order enjoining future violations of, or prohibiting
or mandating activities subject to, federal or state securities laws or finding
any violation with respect to such laws.

ITEM 3.   SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

          The aggregate amount of the loan which is the subject of the
Convertible Subordinated Note Agreement, dated as of August 12, 1998, between
the Issuer and Abbott (the "Note Agreement") is $5,000,000 (the "Loan").  See
Item 6 below.  The source of the funds required to advance the Loan is the
general assets of Abbott.

ITEM 4.   PURPOSE OF THE ACQUISITION

The purpose of the transaction is for investment and to establish a long term
distribution alliance between Abbott and the Issuer.

          (b)  Abbott may convert the Note which evidences the Loan into Common
Stock of the Issuer (the "Common Stock") at any time within a five year period.
Abbott does not have any present intention to exercise its conversion right
immediately.  If Abbott were to exercise its conversion right immediately,
Abbott would own approximately 384,615 Shares (the "Shares") of

                               Page 3 of 9 pages



Common Stock of the Issuer.  See Item 6 below.

          (a) - (j) At present, Abbott does not have any plans or proposals 
which would relate to or result in transactions of the kind described in 
paragraphs (a) through (j) of Item 4 of Schedule 13D of the Securities and 
Exchange Commission.  Abbott does, however, reserve the right to adopt such 
plans or proposals subject to compliance with applicable regulatory 
requirements.

ITEM 5.   INTEREST IN SECURITIES OF THE ISSUER

          (a)  Abbott may be deemed to be the beneficial owner of the Shares.
Upon issuance, if Abbott were to exercise its conversion right immediately, the
Shares would represent approximately 9.7% of the outstanding shares of the
Common Stock.

          (b)  Abbott will have sole power to vote or to direct the vote and the
sole power to dispose or to direct the disposition of the Shares.

          (c)  Except as described herein, there have been no transactions by
Abbott or the persons whose names are listed on Exhibit 1 in securities of the
Issuer during the past sixty days.

          (d)  No one other than Abbott is known to have the right to receive or
the power to direct the receipt of dividends from, or the proceeds form a sale
of the Shares.

          (e)  Not applicable.

ITEM 6.   CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
          TO SECURITIES OF THE ISSUER

     The summaries of certain terms of the following agreements do not purport
to be complete and are subject to, and are qualified in their entirety by
reference to, all provisions of the agreements and reference is made to the full
text of such agreements which are filed as exhibits to this Statement and are
incorporated herein by reference.

A.   CONVERTIBLE SUBORDINATED NOTE AGREEMENT

     Under the terms of the Note Agreement, Abbott is obligated to lend to the
Issuer $5,000,000.  The loan is evidenced by a 5% Convertible Subordinated Note,
dated August 19, 1998 (the "Note").  The Note bears a 5% per annum interest rate
payable quarterly over a five year period.

     Abbott may convert the Note at any time during the five year period into
Common Stock 

                              Page 4 of 9 pages



of the Issuer at an initial conversion price which is subject to
adjustment.  The conversion price may be adjusted from time to time upon the
occurrence of certain events including, among other things, issuance by the
Issuer of rights, options or warrants to all holders of its Common Stock under
certain conditions, and the payment or making of certain distributions on the
Common Stock.

     The Issuer is obligated to reserve and keep available out of its authorized
but unissued Common Stock, the full number of Shares of Common Stock then
issuable upon the conversion of the Note or the Credit Facility Note (as such 
term is defined in the Credit Agreement).

     The Note is not subject to redemption or prepayment.  If certain events of
default occur, the then holder of the Note may declare the entire principal and
unpaid accrued interest on the Note immediately due and payable so long as
certain conditions exist and certain notice requirements are met.

     The indebtedness evidenced by the Note is expressly subordinated to certain
senior indebtedness, except as otherwise provided in the security agreement,
dated August 12, 1998, between the Issuer and Abbott (the "Security Agreement").
Such senior indebtedness include principal and unpaid accrued interest on the
Issuer's indebtedness to certain banks, insurance companies or other financial
institutions.

     Where the Issuer proposes to issue or sell New Securities (as such term is
defined in the Note Agreement) to any person, Abbott has a right of first offer
to purchase a pro rata share of the New Securities that the Issuer may from time
to time propose to sell and issue.  Abbott has 20 days to exercise the right
after it receives due notice.

     The Note Agreement also sets forth the desire of the Issuer and Abbott to
enter into (i) an Exclusive Distribution Agreement and (ii) a Credit Agreement.
It also evidences the intention of the Issuer to grant to Abbott a security
interest in intellectual property relating to the Issuer's peripheral blood clot
infusion products pursuant to the Security Agreement.

B.   EXCLUSIVE DISTRIBUTION AGREEMENT

     The Exclusive Distribution Agreement, is effective August 12, 1998 (the
"Distribution Agreement") and continues for the remainder of the 1998 calendar
year and for 10 full calendar years thereafter, unless terminated.  The initial
term may be extended.

     Under the terms of the Distribution Agreement, Abbott will act as an
exclusive independent distributor of certain peripheral thrombolytic products of
the Issuer as well as the Issuer's devices or technology developed or otherwise
acquired by the Issuer after the effective date of the Distribution Agreement,
including improvements, enhancements or line extensions to the products.  Abbott
will act as such distributor within the United States (including, but not
limited to Puerto Rico) as well as Canada (the "Territory").  The Territory may
be expanded by 

                              Page 5 of 9 pages



mutual agreement of the parties.

     Abbott has an exclusive right of first discussion if the Issuer elects 
to consider and/or pursue discussions with third parties on potential 
commercial collaborations in the Territory for potential vascular 
applications of a particular product currently under development.

     If the Issuer is unable or unwilling to supply products that are the
subject matter of the Distribution Agreement and 90 days after Abbott has
ordered the Issuer to supply such products the Issuer has not remedied its
inability to supply the products, then Abbott may manufacture or have
manufactured the products under the Issuer's patents and other intellectual
property rights during the period the Issuer is unable to supply such products.

C.   CREDIT AGREEMENT

     The Credit Agreement is dated August 12, 1998.  Abbott agrees under the
Credit Agreement to loan to the Issuer, at the Issuer's request, an amount not
to exceed $5,000,000 prior to July 31, 1999.  (This loan is in addition to the
loan covered by the Note Agreement).  The Issuer shall provide Abbott with 15
business days written notice of a request of a loan disbursement under the
Credit Agreement.  Amounts repaid may not be reborrowed.  The loan shall bear
interest from the date of disbursement on the unpaid principal amount thereof
until the earlier of an Event of Default (as such term is defined in the Credit
Agreement) or the date upon which such amount shall become due and payable.
Such interest shall be at a rate of 5% per annum.

     The loan made under the Credit Agreement shall be evidenced by a Credit 
Facility Note.  The Issuer may convert, at its sole discretion, the Credit 
Facility Note or any portion of the principal amount thereof which is 
$1,000,000 or an integral amount multiple of $1,000,000 into fully paid and 
nonassessable shares of Common Stock at the conversion price then in effect.  
The conversion right expires on the maturity date (the fifth year anniversary 
of the first disbursement date).  The initial conversion price may be 
adjusted in certain instances.

     The Issuer shall not have the option to convert the Credit Facility Note
into shares of Common Stock if (i) such Common Stock, together with the Common
Stock then beneficially owned by Abbott, would exceed 19% of the then
outstanding Common Stock (giving effect to such issuance upon conversion to
Abbott) or (ii) the fair market value (as defined in the Credit Agreement) of
the Common Stock as of the date that written notice of conversion is provided to
Abbott falls below a specified level.

     The Issuer shall at all times reserve and keep available out of its
authorized but unissued Common Stock, for the purpose of effecting the
conversion of the Credit Facility Note, the full number of shares of Common
Stock issuable upon conversion of the entire Credit Facility Note.

                                 Page 6 of 9 pages



     Abbott may transfer or assign the Credit Facility Note without the Issuer's
consent.


D.   SECURITY AGREEMENT

     In order to secure the payment and performance of the Issuer's obligations
under (i) the Note Agreement; (ii) the Note; (iii) the Credit Facility Note;
(iv) the Credit Agreement and (v) any amendment, modification, renewal or
extension of the Note or the Note Agreement; the Security Agreement grants from
the Issuer to Abbott, a security interest in all of the Issuer's right, title
and interest in and to the following items:

     (i)   all the Issuer's right, title and interest in and to the current and
           future trademarks owned by the Issuer, in connection with its
           peripheral blood clot infusion products in the Territory, which are
           set forth as an exhibit to the Security Agreement;

     (ii)  all the Issuer's right, title and interest in and to the current and
           future patents owned by the Issuer in connection with the Issuer's
           peripheral blood clot infusion products in the Territory, which are
           set forth as an exhibit to the Security Agreement, and

     (iii) all the Issuer's right, title and interest in and to the other
           current and future intellectual property rights owned by the Issuer
           in connection with the Issuer's peripheral blood clot infusion
           products, which are set forth as an exhibit to the Security
           Agreement.

     The Issuer shall execute a Notice of Recordation of Assignment Document
with the United States Patent and Trademark Office for each trademark and patent
registered with that office.  The Issuer shall also execute a UCC-1 document for
all of the collateral items to enable Abbott to perfect its security interest in
the collateral items.

     Upon the occurrence of an Event of Default (as such term is defined in the
Security Agreement) Abbott may exercise all rights or remedies Abbott may have
as a secured party under the Uniform Commercial Code as adopted in California.
Upon such event, Abbott, at its option, may (i) retain for its own commercial
use all or any portion of the collateral items that are commercially reasonable
(subject to certain provisions); and/or (ii) sell, lease or otherwise dispose of
all or any part of the collateral items upon terms that are commercially
reasonable.

ITEM 7.   MATERIAL TO BE FILED AS EXHIBITS
          Exhibit 1 -    Information Concerning Executive Officers and
                         Directors of Abbott Laboratories.
          Exhibit 2 -    Convertible Subordinated Note Agreement, dated
                         as of August 12, 1998.

                                Page 7 of 9 pages



          Exhibit 3 -    Exclusive Distribution Agreement, dated as of
                         August 12, 1998.
          Exhibit 4 -    Credit Agreement, dated as of August 12, 1998.
          Exhibit 5 -    Security Agreement, dated as of August 12, 1998.

               *********************************

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


                              Abbott Laboratories

DATED: August 31, 1998        By: /s/ Gary P. Coughlan
                                  --------------------------------------------
                                  Gary P. Coughlan, Senior Vice President,
                                  Finance and Chief Financial Officer














                                 Page 8 of 9 pages



                                    EXHIBIT INDEX

PORTIONS OF EXHIBITS 2, 3 AND 4 HAVE BEEN OMITTED (DESIGNATED BY AN ASTERISK
(*)) AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT
TO A REQUEST FOR CONFIDENTIAL TREATMENT DATED AUGUST 28, 1998

Exhibit Number Description - -------------- ----------- 1 Information Concerning Executive Officers and Directors of Abbott Laboratories. 2 Convertible Subordinated Note Agreement, dated as of August 12, 1998. 3 Exclusive Distribution Agreement, dated as of August 12, 1998. 4 Credit Agreement, dated as of August 12, 1998. 5 Security Agreement, dated as of August 12, 1998.
Page 9 of 9 pages


                                     Exhibit 1

                   Information Concerning Executive Officers and
                          Directors of Abbott Laboratories

                               ----------------------

     The current corporate officers and directors of Abbott Laboratories are
listed below.  The address of Abbott Laboratories is: Abbott Laboratories, 100
Abbott Park Road, Abbott Park, Illinois 60064-3500.  Abbott Laboratories does
not consider all of its corporate officers to be executive officers as defined
by the Securities Exchange Act of 1934 or Releases thereunder.  Unless otherwise
indicated, all positions set forth below opposite an individual's name refer to
positions within Abbott Laboratories, and the business address listed for each
individual not principally employed by Abbott Laboratories is also the address
of the corporation or other organization which principally employs that
individual.

POSITION/PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT NAME AND BUSINESS ADDRESS CITIZENSHIP CORPORATE OFFICERS - ------------------- Duane L. Burnham(1) Chairman of the Board and Chief Executive U.S.A. Officer Thomas R. Hodgson(1) President and Chief Operating Officer U.S.A. Paul N. Clark(1) Executive Vice President U.S.A. Robert L. Parkinson(1) Executive Vice President U.S.A. Miles D. White(1) Executive Vice President U.S.A. Joy A. Amundson(1) Senior Vice President, Ross Products U.S.A. Thomas D. Brown(1) Senior Vice President, Diagnostic Operations U.S.A. Gary P. Coughlan(1) Senior Vice President, Finance and Chief Financial Officer U.S.A. Jose M. de Lasa(1) Senior Vice President, Secretary and General U.S.A. Counsel William G. Dempsey(1) Senior Vice President, Chemical and U.S.A. Agricultural Products Richard A. Gonzalez(1) Senior Vice President, Hospital Products U.S.A. Arthur J. Higgins(1) Senior Vice President, Pharmaceutical Operations United Kingdom CORPORATE OFFICERS ------------------ Continued --------- Ellen M. Walvoord(1) Senior Vice President, Human Resources U.S.A. Josef Wendler(1) Senior Vice President, International Operations Germany Catherine V. Babington(1) Vice President, Investor Relations and Public U.S.A. Affairs Patrick J. Balthrop Vice President, Diagnostic Commercial U.S.A. Operations Mark E. Barmak Vice President, Litigation and Government U.S.A. Affairs Christopher B. Begley Vice President, MediSense Operations U.S.A. Douglas C. Bryant Vice President, Diagnostic Operations, Asia U.S.A. and Pacific Gary R. Byers(1) Vice President, Internal Audit U.S.A. Thomas C. Chen Vice President, Pacific, Asia, and Africa U.S.A. Operations Kenneth W. Farmer(1) Vice President, Management Information U.S.A. Services and Administration Edward J. Fiorentino Vice President, Pharmaceutical Products, U.S.A. Marketing, and Sales Thomas C. Freyman(1) Vice President and Treasurer U.S.A. David B. Goffredo Vice President, European Operations U.S.A. Guillermo A. Herrera Vice President, Latin America and Canada Columbia Operations Jay B. Johnston Vice President, Diagnostic Assays and Systems U.S.A. James J. Koziarz, Ph.D. Vice President, Diagnostic Products Research U.S.A. and Development John F. Lussen(1) Vice President, Taxes U.S.A. Edward L. Michael Vice President, Diagnostic Operations, Europe, Africa, U.S.A. and Middle East Theodore A. Olson(1) Vice President and Controller U.S.A. CORPORATE OFFICERS ------------------ Continued --------- Andre G. Pernet, Ph.D. Vice President, Pharmaceutical Products U.S.A. Research and Development William H. Stadtlander Vice President, Ross Medical Nutritional Products U.S.A. Marcia A. Thomas(1) Vice President, Corporate Quality Assurance U.S.A. and Regulatory Affairs H. Thomas Watkins(1) Vice President, Abbott HealthSystems U.S.A. Steven J. Weger(1) Vice President, Corporate Planning and U.S.A. Development Susan M. Widner Vice President, Diagnostic Operations, U.S. and Canada U.S.A. Lance B. Wyatt(1) Vice President, Corporate Engineering U.S.A.
(1) Pursuant to Item 401(b) of Regulation S-K Abbott has identified these persons as "executive officers" within the meaning of Item 401(b).
POSITION/PRESENT PRINCIPAL OCCUPATION OR EMPLOYMENT NAME AND BUSINESS ADDRESS CITIZENSHIP DIRECTORS --------- K. Frank Austen, M.D. Professor of Medicine, Harvard Medical School U.S.A. Smith Building, Room 638 One Jimmy Fund Way Boston, Massachusetts 02115 Duane L. Burnham Officer of Abbott U.S.A. Paul N. Clark Officer of Abbott U.S.A. H. Laurance Fuller Chairman and Chief Executive Officer U.S.A. Amoco Corporation 200 East Randolph Drive Mail Code 3000 Chicago, Illinois 60601 (integrated petroleum and chemicals company) Thomas R. Hodgson Officer of Abbott U.S.A. David A. Jones Chairman and Retired Chief Executive Officer U.S.A. Humana Inc. 500 W. Main Street Humana Building Louisville, Kentucky 40202 (Health Plan Business) The Rt. Hon. the Lord British Member of Parliament United Kingdom Owen CH 25 Queen Anne's Gate Westminster, London SW1H 9BU, England Robert L. Parkinson Officer of Abbott U.S.A. Boone Powell, Jr. President and Chief Executive Officer U.S.A. Baylor Health Care System and Baylor University Medical Center, Vice President, Baylor University 3500 Gaston Avenue Dallas, Texas 75246 DIRECTORS - Continued --------------------- Addison Barry Rand Executive Vice President U.S.A. Xerox Corporation 800 Long Ridge Road Stamford, Connecticut 06904-1600 (document processing, insurance and financial services company) Dr. W. Ann Reynolds President U.S.A. The University of Alabama at Birmingham Suite 1070 Administration Building 701 S. 20th Street Birmingham, Alabama 35294-0110 Roy S. Roberts Vice President U.S.A. General Motors Corporation, and General Manager, Pontiac-GMC Division 100 Renaissance Center Mail Code 482-A30-D10 Detroit, Michigan 48243 (manufacturer of motor vehicles) William D. Smithburg Retired Chairman, President and Chief Executive Officer U.S.A. The Quaker Oats Company 321 N. Clark Street Chicago, Illinois 60610 (worldwide food manufacturer and marketer of beverages and grain-based products) John R. Walter Former President and Chief Operating Officer U.S.A. AT & T Corporation 295 North Maple Avenue Room 4353L1 Basking Ridge, New Jersey (telecommunications company) William L. Weiss Chairman Emeritus, Ameritech Corporation U.S.A. One First National Plaza Suite 2530C Chicago, Illinois 60603-2006 (telecommunications company) Miles D. White Officer of Abbott U.S.A.


                                     EXHIBIT 2
                                          
PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED (DESIGNATED BY AN ASTERISK (*)) AND
  FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A
           REQUEST FOR CONFIDENTIAL TREATMENT DATED AUGUST 28, 1998
                                          
                                          
                      CONVERTIBLE SUBORDINATED NOTE AGREEMENT
                                   BY AND BETWEEN
                                ABBOTT LABORATORIES
                                        AND
                              MICRO THERAPEUTICS, INC.
                            DATED AS OF AUGUST 12, 1998
                                     $5,000,000
               5% CONVERTIBLE SUBORDINATED NOTE, DUE AUGUST 19, 2003
                                          
                                          
                      CONVERTIBLE SUBORDINATED NOTE AGREEMENT
THIS CONVERTIBLE SUBORDINATED NOTE AGREEMENT (this "Agreement"), entered into as
of the 12th day of August 1998, by and between ABBOTT LABORATORIES, an Illinois
corporation ("Abbott"), and MICRO THERAPEUTICS, INC., a Delaware corporation
(the "Company").
     
                                      RECITALS
                                          
A.   Abbott desires to purchase from the Company, and the Company desires to
     sell to Abbott, a certain 5% Convertible Subordinated Note, due August 19,
     2003, in the aggregate principal amount of Five Million Dollars
     ($5,000,000) (the "Note") convertible into shares of the common stock, par
     value $0.001 per share, of the Company (the "Common Stock"), in the form
     attached hereto as Exhibit A, all as more fully described below, on the
     terms and conditions set forth herein.
     
B.   The Company and Abbott desire to enter into an Exclusive Distribution
     Agreement (the "Distribution Agreement") in the form attached hereto as
     Exhibit B.
     
C.   The Company and Abbott desire to enter into a Credit Agreement (the "Credit
     Agreement") in the form attached hereto as Exhibit C, which provides that
     Abbott, as lender, shall loan to the Company, at the Company's sole option,
     as borrower, an amount not to exceed an aggregate of Five Million Dollars
     ($5,000,000).
     
D.   The Company desires to grant Abbott a security interest in the intellectual
     property relating to the Company's peripheral blood clot infusion products
     pursuant to the Security Agreement in the form attached hereto as Exhibit
     D.
     
E.   The Company and Abbott desire to make certain representations, warranties,



     covenants and agreements in connection with the purchase and sale of the
     Note and desire to prescribe certain conditions precedent to such purchase
     and sale.
     
F.   The Company and Abbott desire to make certain representations, warranties,
     covenants and agreements in connection with entering into this Agreement
     and the Credit Agreement and desire to prescribe certain conditions
     precedent to such agreements.
     
                                     AGREEMENT
                                          
NOW, THEREFORE, in consideration of the promises and of the mutual provisions,
agreements and covenants contained herein, the Company and Abbott hereby agree
as follows:
     
1.     DESCRIPTION OF NOTE AND COMMITMENT.

1.1    DESCRIPTION OF NOTE.  The Company has authorized the purchase and sale
       of Five Million Dollars ($5,000,000) aggregate principal amount of the
       Note to be dated the Closing Date of issue, to bear interest from such
       date at the rate of five percent (5%) per annum, payable quarterly in
       arrears on January 31, April 30, July 31 and October 31, each year
       (commencing October 31, 1998) and at maturity and to bear interest on
       overdue principal and premium, if any, and (to the extent legally
       enforceable) on any overdue installment of interest at the rate of ten
       percent (10%) per annum after the date due, whether at maturity or by
       declaration, acceleration or otherwise, until paid, to be expressed to
       mature on August 19, 2003, and to be substantially in the form attached
       hereto as Exhibit A.  The Note is not subject to redemption or
       prepayment.  The Note is convertible into Common Stock on the terms and
       conditions set forth in Section 11 hereof.
       
1.2    COMMITMENT, CLOSING DATE.  Subject to the terms and conditions hereof
       and on the basis of the representations, warranties, covenants and
       agreements set forth herein, the Company agrees to sell to Abbott, and
       Abbott agrees to purchase from the Company, the Note in the respective
       aggregate principal amount as set forth in Exhibit A at a purchase price
       of one hundred percent (100%) of the principal amount thereof on the
       Closing Date (as defined herein).

The closing of the purchase and sale of the Note will be made at the offices 
of Stradling Yocca Carlson & Rauth, 660 Newport Center Drive, Suite 1600, 
Newport Beach, California 92660, against payment therefor of the purchase 
price by wire transfer in immediately available funds at 1:00 p.m. Pacific 
time, August 19, 1998, or such later date as shall mutually be agreed upon by 
the Company and Abbott (the "Closing Date").  The Note delivered to Abbott on 
the Closing Date will be delivered to Abbott in the form of a single Note in 
the form attached hereto as Exhibit A for the full amount of Abbott's 
purchase.



2.     INTERPRETATION OF AGREEMENT; DEFINITIONS.

2.1    DEFINITIONS.  Unless the context otherwise requires, the terms
hereinafter set forth when used herein shall have the following meanings and the
following definitions shall be equally applicable to both the singular and
plural forms of any of the terms herein defined:

"Affiliate" shall mean any Person (other than a Subsidiary) (i) which directly
or indirectly through one or more intermediaries controls, or is controlled by,
or is under common control with, the Company, (ii) which beneficially owns or
holds five percent (5%) or more of any class of the Voting Stock of the Company
or (iii) five percent (5%) or more of the Voting Stock (or in the case of a
Person which is not a corporation, five percent (5%) or more of the equity
interest) of which is beneficially owned or held by the Company or a Subsidiary.
The term "control" means the possession, directly or indirectly, of the power to
direct or cause the direction of the management and policies of a Person,
whether through the ownership of Voting Stock, by contract or otherwise.

"Agreement" shall mean this Note Agreement.

"Board of Directors" shall mean either the board of directors of the Company or
any duly authorized committee thereof.

"Board Resolution" shall mean a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Company to have been duly adopted by the Board
of Directors and to be in full force and effect on the date of such
certification.

"Business Day" shall mean any day other than a Saturday, Sunday, legal holiday
or other day on which commercial banks located in San Francisco, California or
Chicago, Illinois are authorized or required by law to be closed.

"Closing Date" shall have the meaning specified in Section 1.2 hereof.

"Commission" shall mean the Securities and Exchange Commission, or successor
regulatory entity.

"Common Stock" shall mean the Common Stock, par value $0.001 per share, of the
Company.

"Company" shall mean Micro Therapeutics, Inc., a Delaware corporation, and any
Person who in accordance with the terms of this Agreement succeeds to all, or
substantially all, of the assets or business of Micro Therapeutics, Inc.

"Credit Facility Note" shall mean the 5% Convertible Credit Facility Note issued
pursuant to the Credit Facility as defined in Section 6.1 hereof.

"ERISA" shall mean the Employee Retirement Income Security Act of 1974, as
amended, and any successor statute of similar import, together with the
regulations thereunder, in each 



case as in effect from time to time.  References to sections of ERISA shall 
be construed to also refer to any successor sections.

"Event of Default" shall have the meaning set forth in Section 9 hereof.

"Exchange Act" shall mean the Securities Exchange Act of 1934, as amended.

"GAAP" shall mean generally accepted accounting principles at the time in the
United States.

"Holder" shall mean the registered holder of the Note, initially Abbott.

"Interest Payment Date" shall mean the Stated Maturity of an installment of
interest on the Note.

"Lien" shall mean any interest in property securing an obligation owed to, or a
claim by, a Person other than the owner of the property, whether such interest
is based on the common law, statute or contract, and including but not limited
to the security interest lien arising from a mortgage, encumbrance, pledge,
conditional sale or trust receipt or a lease, consignment or bailment for
security purposes.  The term "Lien" shall include reservations, exceptions,
encroachments, easements, rights-of-way, covenants, conditions, restrictions,
leases and other title exceptions and encumbrances (including, with respect to
stock, stockholder agreements, voting trust agreements, buy-back agreements and
all similar arrangements) affecting property.  For the purposes of this
Agreement, the Company or a Subsidiary shall be deemed to be the owner of any
property which it has acquired or holds subject to a conditional sale agreement,
capitalized lease or other arrangement pursuant to which title to the property
has been retained by or vested in some other Person for security purposes and
such retention or vesting shall constitute a Lien.

"Nasdaq" and "Nasdaq National Market" shall have the meanings specified in
Section 11.4(h) hereof.

"Person" shall mean an individual, partnership, corporation, limited liability
company, trust or unincorporated organization, and a government or agency or
political subdivision thereof.

"Preferred Stock" shall mean stock of the Company or a Subsidiary of any class
or series ranking prior to any other class or series of stock of the Company or
the Subsidiary with respect to the payment of dividends or the distribution of
assets upon the liquidation, dissolution or winding up of the Company or the
Subsidiary.

"Purchased Shares" shall have the meaning specified in Section 11.4(f) hereof.

"Securities Act" shall mean the Securities Act of 1933, as amended.

"Stated Maturity," when used with respect to the Note or any installment of
interest hereon, shall mean the date specified in the Note as the fixed date on
which the principal of the Note 



or any installment of interest is due and payable.

"Subsidiary" shall mean a corporation, partnership or other entity at least a
majority of whose Voting Stock is owned directly or indirectly by the Company.

"Voting Stock" shall mean securities of any class or classes, the holders of
which are ordinarily, in the absence of contingencies, entitled to elect a
majority of the corporate directors (or Persons performing similar functions).

2.2    ACCOUNTING PRINCIPLES.  Where the character or amount of any asset or
liability or item of income or expense is required to be determined or any
consolidation or other accounting computation is required to be made for the
purposes of this Agreement, the same shall be done in accordance with GAAP, to
the extent applicable, except where such principles are inconsistent with the
requirements of this Agreement.

2.3    DIRECTLY OR INDIRECTLY.  Where any provision in this Agreement refers to
action to be taken by any Person, or which such Person is prohibited from
taking, such provision shall be applicable whether the action in question is
taken directly or indirectly by such Person.

2.4    LEGAL HOLIDAYS.  In any case where any Interest Payment Date or Stated
Maturity of the Note or the last date on which Abbott has the right to convert
the Note shall not be a Business Day, then (notwithstanding any other provision
of this Agreement or of the Note) payment of interest or principal or conversion
of the Note, as the case may be, need not be made on such date, but may be made
on the next succeeding Business Day with the same force and effect as if made on
the Interest Payment Date, or at the Stated Maturity, or on such last day for
conversion.

3.     REPRESENTATIONS AND WARRANTIES OF THE COMPANY AND ITS SUBSIDIARIES. 
Except as otherwise set forth in the Disclosure Schedule attached hereto as
Exhibit E (the "Disclosure Schedule") or in any document expressly referenced in
the Disclosure Schedule, the Company and its Subsidiaries represent and warrant
to Abbott as of the date hereof as follows:

3.1    SUBSIDIARIES OF THE COMPANY.  The Disclosure Schedule states the name of
each of the Subsidiaries of the Company, its jurisdiction of incorporation and
the percentage of its Voting Stock owned by the Company and/or its Subsidiaries.
The Company and each of its Subsidiaries has good and marketable title to all of
the shares it purports to own of the stock of each Subsidiary, free and clear in
each case of any Lien.

3.2    CORPORATE ORGANIZATION AND AUTHORITY.  The Company, and each of its 
Subsidiaries:  (a) is a corporation duly organized, validly existing and in 
good standing under the laws of its jurisdiction of incorporation; (b) has 
all requisite power and authority and all necessary licenses and permits to 
own and operate its properties and to carry on its business as now conducted 
and as presently proposed to be conducted; and (c) is duly licensed or 
qualified and is in good standing as a foreign corporation in each 
jurisdiction wherein the nature of the business transacted by it or the 
nature of the property owned or leased by it 



makes such licensing or qualification necessary.

3.3    CAPITAL STRUCTURE.  The authorized capital stock of the Company consists
of Twenty Million (20,000,000) shares of Common Stock, par value $0.001 per
share, and Five Million (5,000,000) shares of Preferred Stock, par value $0.001
per share.  As of June 30, 1998, Six Million Six Hundred Eighty-Four Thousand
Four Hundred Sixty-Seven (6,684,467) shares of the Common Stock were issued and
outstanding and no shares of the Preferred Stock were issued and outstanding.

All of the outstanding Common Stock was issued in compliance with applicable
federal and state securities laws and regulations.  All of the outstanding
shares of the Common Stock are, and any shares of Common Stock issuable upon
conversion of the Note and the Credit Facility Note will be, duly authorized,
validly issued, fully paid and nonassessable and not subject to preemptive
rights created by statute, the Company's Certificate of Incorporation or Bylaws,
or any agreement to which the Company is a party or is bound.

3.4    EQUITY INVESTMENTS.  The Company does not own any equity stock or
interest, directly or indirectly, in any corporation, partnership, joint
venture, firm or other entity.  The Company has no Subsidiaries except those set
forth in the Disclosure Schedule.

3.5    AUTHORITY.  The Company has all requisite corporate power and authority
to enter into this Agreement, the Credit Agreement and the Security Agreement
and to issue the Note, and will have all requisite corporate power and authority
to issue the Credit Facility Note and, subject to satisfaction of the conditions
set forth herein and therein, to consummate the transactions contemplated hereby
and thereby.  The execution and delivery of this Agreement, the Credit
Agreement, the Security Agreement and the Note and the consummation of the
transactions contemplated hereby and thereby have been, and the execution and
delivery of the Credit Facility Note and the consummation of the transactions
contemplated thereby will be, duly authorized by all necessary corporate action
on the part of the Company.  This Agreement, the Credit Agreement, the Security
Agreement and the Note have been, and the Credit Facility Note will be, duly
executed and delivered by the Company, and constitute the valid and binding
obligation of the Company, enforceable in accordance with their respective
terms, subject to the effect of applicable bankruptcy, insolvency,
reorganization or other similar laws affecting the rights of creditors and the
effect or availability of rules of law governing specific performance,
injunctive relief or other equitable remedies.  Provided the conditions set
forth in Section 8 hereof are satisfied, the execution and delivery of this
Agreement, the Credit Agreement, the Security Agreement, the Note and the Credit
Facility Note do not or will not, and the consummation of the transactions
contemplated hereby or thereby will not, conflict with, or result in any
violation of or default (with or without notice or lapse of time, or both)
under, or give rise to a right of termination, cancellation or acceleration of
any obligation under (a) any provision of the Certificate of Incorporation or
Bylaws of the Company, or (b) any material agreement or instrument, permit,
franchise, license, judgment or order, applicable to the Company or
its respective properties or assets.

No consent, approval, order or authorization of, or registration, declaration or
filing with, any 




court, administrative agency or commission or other governmental authority (a 
"Governmental Entity") or other Person or entity, is required by, or with 
respect to, the Company in connection with the execution and delivery of this 
Agreement, the Credit Agreement or the Security Agreement or the consummation 
by the Company of the transactions contemplated hereby or thereby, except for 
such consents, approvals, orders, authorizations, registrations, declarations 
and filings as may be required under applicable federal and state securities 
laws and the laws of any foreign country.

3.6    FINANCIAL STATEMENTS.  The Company has furnished to Abbott its audited
consolidated statement of operations, statement of stockholders' equity and
statement of cash flows for the fiscal year ended December 31, 1997 and the
Company's audited consolidated balance sheet at December 31, 1997; and the
unaudited consolidated statement of operations and statement of cash flows for
the six (6) months ended June 30, 1998 and the unaudited consolidated balance
sheet at June 30, 1998.  The Company will furnish to Abbott as soon as available
its audited consolidated financial statements for the fiscal year ended December
31, 1998.  The balance sheet at June 30, 1998 is hereinafter referred to as the
"Company Balance Sheet," and all such financial statements are hereinafter
referred to collectively as the "Company Financial Statements."  The Company
Financial Statements have been and will be prepared in accordance with GAAP
applied on a consistent basis, except for any change due to the adoption of an
accounting principle established by the FASB, AICPA, SEC or any other accounting
standard setting board, during the periods involved, and fairly present and will
present the consolidated financial position of the Company and the results of
its operations as of the date and for the periods indicated thereon.  At the
date of the Company Balance Sheet (the "Company Balance Sheet Date"), neither
the Company nor its consolidated Subsidiaries had any liabilities or
obligations, secured or unsecured (whether accrued, absolute, contingent or
otherwise) not reflected on the Company Balance Sheet or the accompanying notes
thereto.

3.7    SECURITIES AND EXCHANGE COMMISSION DOCUMENTS.  The Company has furnished
to Abbott a true and complete copy of the Company's Form 10-KSB for the year
ended December 31, 1997 and Form 10-QSB for each of the quarters ended March 31,
1998 and June 30, 1998 (the "Company SEC Documents").  As of their respective
filing dates, the Company SEC Documents comply in all material respects with the
requirements of the Exchange Act or the Securities Act, and none of the Company
SEC Documents contain any untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary in order to make the
statements made therein, in light of the circumstances under which they were
made, not misleading, except to the extent corrected by a subsequently filed
Company SEC Document.

3.8    BUSINESS CHANGES.  Since June 30, 1998, except as otherwise contemplated
by this Agreement or as disclosed in writing to Abbott, the Company has
conducted its business only in the ordinary and usual course and, without
limiting the generality of the foregoing:

(a)    There have been no changes in the condition (financial or otherwise), 
business, net worth, assets, properties, employees, operations, obligations 
or liabilities of the Company which, in the aggregate, have had or may be 
reasonably expected to have a materially 



adverse effect on the condition, business, net worth, assets, prospects, 
properties or operations of the Company.

(b)    The Company has not issued, or authorized for issuance, or entered into
any commitment to issue, any equity security, bond, note or other security of
the Company.

(c)    The Company has not incurred debt for borrowed money, nor incurred any
obligation or liability except in the ordinary and usual course of business and
in any event not in excess of Fifty Thousand Dollars ($50,000) for any single
occurrence.

(d)    The Company has not paid any obligation or liability, or discharged,
settled or satisfied any claim, lien or encumbrance, except for current
liabilities in the ordinary and usual course of business and in any event not in
excess of Fifty Thousand Dollars ($50,000) for any single occurrence.

(e)    The Company has not declared or made any dividend, payment or other
distribution on or with respect to any share of capital stock of the Company.

(f)    The Company has not purchased, redeemed or otherwise acquired or
committed itself to acquire, directly or indirectly, any share or shares of
capital stock of the Company.

(g)    The Company has not mortgaged, pledged, or otherwise encumbered any of
its assets or properties, other than inventory sold in the normal course of
business or accounts receivable.

(h)    The Company has not disposed of, or agreed to dispose of, by sale,
lease, license or otherwise, any asset or property, tangible or intangible,
except, in the case of such other assets and property, in the ordinary and usual
course of business, and in each case for a consideration believed to be at least
equal to the fair value of such asset or property and in any event not in excess
of Fifty Thousand Dollars ($50,000) for any single item or One Hundred Thousand
Dollars ($100,000) in the aggregate other than inventory sold or returned in the
normal course of business.

(i)    The Company has not purchased or agreed to purchase or otherwise acquire
any securities of any corporation, partnership, joint venture, firm or other
entity; the Company has not made any expenditure or commitment for the purchase,
acquisition, construction or improvement of a capital asset, except in the
ordinary and usual course of business and in any event not in excess of Fifty
Thousand Dollars ($50,000) for any single item or One Hundred Thousand Dollars
($100,000) in the aggregate.

(j)    The Company has not entered into any transaction or contract, or made
any commitment to do the same, except in the ordinary and usual course of
business.

(k)    The Company has not sold, assigned, transferred or conveyed, or
committed itself to sell, assign, transfer or convey, any Proprietary Rights (as
defined in Section 3.15 hereof).



(l)    The Company has not adopted or amended any bonus, incentive, 
profit-sharing, stock option, stock purchase, pension, retirement, 
deferred-compensation, severance, life insurance, medical or other benefit 
plan, agreement, trust, fund or arrangement for the benefit of employees of 
any kind whatsoever, nor entered into or amended any agreement relating to 
employment, services as an independent contractor or consultant, or severance 
or termination pay, nor agreed to do any of the foregoing.

(m)    The Company has not effected or agreed to effect any change in its
directors, officers or key employees.

(n)    The Company has not effected or committed itself to effect any amendment
or modification in its Certificate of Incorporation or Bylaws, except as
contemplated by this Agreement.

(o)    The Company has not modified its accounting principles in any material
respect, except for those changes required by the adoption of an accounting
principle promulgated by the FASB, the AICPA, the Securities and Exchange
Commission, or any other accounting standards setting bodies.

3.9    INDEBTEDNESS.  The Disclosure Schedule correctly describes all debt of
the Company and its Subsidiaries in excess of Two Hundred Fifty Thousand Dollars
($250,000) outstanding of the Closing Date.

3.10   LITIGATION.  There is no claim, dispute, action, proceeding, notice,
order, suit, appeal or investigation, at law or in equity, pending against the
Company, or involving any of its assets or properties, before any court, agency,
authority, arbitration panel or other tribunal (other than those, if any, with
respect to which service of process or similar notice has not yet been made on
the Company), and none have been threatened.  The Company is aware of no facts
which, if known to stockholders, customers, governmental authorities or other
Persons, would result in any such claim, dispute, action, proceeding, suit or
appeal or investigation which would have a material adverse effect on the
condition (financial or otherwise), business, net worth, assets, prospects,
properties or operations of the Company.  The Company is not subject to any
order, writ, injunction or decree of any court, agency, authority, arbitration
panel or other tribunal, nor is it in default with respect to any notice, order,
writ, injunction or decree.

3.11   COMPLIANCE WITH LAW.  All material licenses, franchises, permits, 
clearances, consents, certificates and other evidences of authority of the 
Company which are necessary to the conduct of the Company's business 
("Permits") are in full force and effect and the Company is not in violation 
of any Permit in any material respect.  Except for possible exceptions, the 
curing or non-curing of which would not have a material adverse effect on the 
condition (financial or otherwise), business, net worth, assets, prospects, 
properties or operations of the Company, the business of the Company has been 
conducted in accordance with all applicable laws, regulations, orders and 
other requirements of governmental authorities.



3.12   TITLE TO PROPERTIES.  The Company and each of its Subsidiaries has good
and marketable title in fee simple (or its equivalent under applicable law) to
all material parcels of real property and has good title to all the other
material items of property it purports to own, except as sold or otherwise
disposed of in the ordinary course of business.

3.13   LICENSES, ETC.  The Company and each of its Subsidiaries owns or
possesses all the material trade names, service marks, licenses, governmental
approvals, and rights with respect to the foregoing necessary for the present
conduct of its business, without any known conflict with the rights of others.

3.14   NO DEFAULT.

(a)    Each of the Company's material agreements or contracts is a legal,
binding and enforceable obligation by or against the Company, subject to the
effect of applicable bankruptcy, insolvency, reorganization, moratorium or other
similar federal or state laws affecting the rights of creditors and the effect
or availability of rules of law governing specific performance, injunctive
relief or other equitable remedies (regardless of whether any such remedy is
considered in a proceeding at law or in equity).  To the Company's knowledge, no
party with whom the Company has an agreement or contract is in default
thereunder or has breached any term or provision thereof which is material to
the conduct of the Company's business.

(b)    The Company has performed, or is now performing, the obligations of, and
the Company is not in material default (or would by the lapse of time and/or the
giving of notice be in material default) in respect of, any contract, agreement
or commitment binding upon it or its assets or properties and material to the
conduct of its business.  No third party has raised any claim, dispute or
controversy with respect to any of the contracts of the Company, whether fully
performed or currently being performed, nor has the Company received written
notice or warning of alleged nonperformance, delay in delivery or other
noncompliance by the Company with respect to its obligations under any of those
contracts, nor are there any facts which exist indicating that any of those
contracts may be totally or partially terminated or suspended by the other
parties thereto.

3.15   PROPRIETARY RIGHTS.
(a)    The Company has provided Abbott with a complete list in writing of all
patents and applications for patents, trademarks, trade names, service marks,
and copyrights, and applications therefor, owned or used by the Company or in
which it has any rights or licenses, except for software used by the Company and
generally available on the commercial market.  The Company has provided Abbott
with a complete and accurate list of all agreements of the Company with each
officer, employee or consultant of the Company providing the Company with title
and ownership to patents, patent applications, trade secrets and inventions
developed or used by the Company in its business.  All of such agreements so
described are valid, enforceable and legally binding, subject to the effect of
applicable bankruptcy, insolvency, reorganization or other similar laws
affecting the rights of creditors or availability of rules of law governing
specific performance, injunctive relief or other equitable remedies (regardless
of whether any such remedy is considered in a proceeding at 



law or in equity).

(b)    The Company owns or possesses licenses or other rights to use all
patents, patent applications, trademarks, trademark applications, trade secrets,
service marks, trade names, copyrights, inventions, drawings, designs, customer
lists, proprietary know-how or information, or other rights with respect thereto
(collectively referred to as "Proprietary Rights"), used in the business of the
Company, and the same are sufficient to conduct the Company's business as it has
been and is now being conducted.

(c)    The operations of the Company do not conflict with or infringe, and no
one has asserted to the Company that such operations conflict with or infringe,
on any Proprietary Rights, owned, possessed or used by any third party.  There
are no claims, disputes, actions, proceedings, suits or appeals pending against
the Company with respect to any Proprietary Rights (other than those, if any,
with respect to which service of process or similar notice may not yet have been
made on the Company), and, none has been threatened against the Company.  To the
knowledge of the Company, there are no facts or alleged facts which would
reasonably serve as a basis for any claim that the Company does not have the
right to use, free of any rights or claims of others, all Proprietary Rights in
the development, manufacture, use, sale or other disposition of any or all
products or services presently being used, furnished or sold in the conduct of
the business of the Company as it has been and is now being conducted.

(d)    To the Company's knowledge, no employee of the Company is in violation
of any term of any employment contract, proprietary information and inventions
agreement, non-competition agreement, or any other contract or agreement
relating to the relationship of any such employee with the Company or any
previous employer.

3.16   TAXES.  All tax returns required to be filed by the Company or its
Subsidiaries in any jurisdiction have, in fact, been filed, and all taxes,
assessments, fees and other governmental charges upon the Company or its
Subsidiaries or upon any of their respective properties, income or franchises,
which are shown to be due and payable in such returns have been paid.  For all
taxable years ending on or before December 31, 1997, the federal income tax
liability of the Company and its Subsidiaries has been satisfied.  The Company
does not know of any proposed additional tax assessment against it for which
adequate reserves have not been made on its balance sheet, and no material
controversy in respect of additional federal or state income taxes due since
said date is pending or, to the knowledge of the Company, threatened.  The
reserves for taxes on the books of the Company and each of its Subsidiaries are
adequate in all material respects for all open years, and for its current fiscal
period.

3.17   USE OF PROCEEDS.  The net proceeds from the sale of the Note will be
used to make an infusion of capital into the Company and for other corporate
purposes.

3.18   PRIVATE OFFERING.  Neither the Company, directly or indirectly, nor 
any agent on its behalf has offered or will offer the Note or any similar 
security or has solicited or will solicit an offer to acquire the Note or any 
similar security from or has otherwise approached or negotiated or will 
approach or negotiate in respect of the Note or any similar security with 



any Person other than Abbott.  Neither the Company, directly or indirectly, 
nor any agent on its behalf has offered or will offer the Note or any similar 
security or has solicited or will solicit an offer to acquire the Note or any 
similar security from any Person so as to require registration of the Note 
under section 5 of the Securities Act.

3.19   EMPLOYEE PLANS AND RELATIONS.
(a)    Except as provided in the Company SEC Documents, the Company does not
have any:  (i) employee benefit plans, multi-employer plans and employee benefit
plans (as defined in section 3(2) or section 3(3) of the Employee Retirement
Income Security Act of 1974, as amended); (ii) bonus, deferred compensation,
incentive, restricted stock, stock purchase, stock option, stock appreciation
right, phantom stock, debenture, supplemental pension, profit-sharing, royalty
pool, commission or similar plan or arrangement; (iii) employment, consulting or
termination agreement; or (iv)other plan, program, agreement, procedure, policy,
commitment, understanding or other arrangement relating to employee benefits,
executive compensation, fringe benefits, severance pay, terms of employment or
services as a director, officer, employee or independent contractor.
(b)    The Company has not been and is not a party to, or subject to, or
affected by, any collective bargaining agreement or other labor contract.  The
Company has complied in all respects with all laws, rules and regulations
relating to employment, equal employment opportunity, nondiscrimination,
immigration, wages, hours, benefits, collective bargaining, the payment of
social security and similar taxes, occupational safety and health and plant
closing.

3.20   ENVIRONMENTAL MATTERS.  The Company is, and at all times during the
period prior to the date hereof the Company has been, in compliance with all
applicable local, state and federal statutes, orders, rules, ordinances and
regulations relating to pollution or protection of the environment, including,
without limitation, laws relating to zoning and land use and to emissions,
discharges, releases or threatened releases of pollutants, contaminants,
hazardous or toxic materials or wastes into or on land, ambient air, surface
water, ground water, personal property or structures (including the protection,
cleanup, removal, remediation or damage thereof), or otherwise related to the
manufacture, processing, distribution, use, treatment, storage, disposal,
transport, discharge or handling of pollutants, contaminants or hazardous or
toxic substances, materials or wastes.

3.21   BROKERS OR FINDERS.  The Company has not dealt with any broker or finder
in connection with the transactions contemplated by this Agreement.  The Company
has not incurred, and shall not incur, directly or indirectly, any liability for
any brokerage or finders' fees or agents' commissions or any similar charges in
connection with this Agreement or any transaction contemplated hereby.

3.22   FULL DISCLOSURE.  Neither the Company Financial Statements referred to 
in Section 3.6 hereof nor this Agreement, or any other written statement 
furnished by the Company to Abbott in connection with the negotiation of the 
sale of the Note, contains any untrue statement of a material fact or omits a 
material fact necessary to make the statements contained herein or therein 
not misleading.  There is no fact peculiar to the Company or the Subsidiaries 
which the Company has not disclosed to Abbott in writing which materially 



adversely affects nor, so far as the Company can now foresee, will materially 
adversely affect, the properties, business, profits or condition (financial 
or otherwise) of the Company and the Subsidiaries, taken as a whole.

4.     REPRESENTATIONS AND WARRANTIES OF ABBOTT.  Except as contemplated by
this Agreement, Abbott represents and warrants to the Company as of the date
hereof as follows:

4.1    CORPORATE ORGANIZATION.  Abbott is a corporation duly incorporated,
validly existing and in good standing under the laws of Illinois.  Abbott is
duly qualified to do business and is in good standing in its state of
incorporation and in each other jurisdiction in which it owns or leases property
or conducts business, except where the failure to be so qualified would not have
a material adverse effect on the business of Abbott.  Abbott has all requisite
power and authority to own, lease and operate its properties and to carry on its
business as now being conducted, and possesses all licenses, franchises, rights
and privileges material to the conduct of its business.

4.2    AUTHORITY.  Abbott has all requisite corporate power and authority to
enter into this Agreement and the related agreements contemplated herein, and,
subject to satisfaction of the conditions set forth herein, to consummate the
transactions contemplated hereby.  The execution and delivery of this Agreement
and the consummation of the transactions contemplated hereby have been duly
authorized by all necessary corporate action on the part of Abbott.  This
Agreement has been duly executed and delivered by Abbott and constitutes the
valid and binding obligation of Abbott enforceable in accordance with its terms,
subject to the effect of applicable bankruptcy, insolvency, reorganization or
other similar federal or state laws affecting the rights of creditors and the
effect or availability of rules of law governing specific performance,
injunctive relief or other equitable remedies.  Provided the conditions set
forth in Section 8 are satisfied, the execution and delivery of this Agreement
do not, and the consummation of the transactions contemplated hereby will not,
conflict with, or result in any violation of or default (with or without notice
or lapse of time, or both) under, or give rise to a right of termination,
cancellation or acceleration of any obligation under (a) any provision of the
Certificate of Incorporation or Bylaws of Abbott, or (b) any material agreement
or instrument, permit, license, judgment, order, statute, law, ordinance, rule
or regulation applicable to Abbott or its properties or assets, other than any
such conflicts, violations, defaults, terminations, cancellations or
accelerations which individually or in the aggregate would not have a material
adverse effect on Abbott.

No consent, approval, order or authorization of, or registration, declaration or
filing with, any governmental authority is required by or with respect to Abbott
in connection with the execution and delivery of this Agreement by Abbott or the
consummation by Abbott of the transactions contemplated hereby or thereby.

4.3    RESTRICTED NOTE.  Abbott represents and agrees, and in entering into 
this Agreement the Company understands, that (a) Abbott is acquiring the Note 
for Abbott's own account, and for the purpose of investment and not with a 
view to the distribution thereof, and that Abbott has no present intention of 
selling, negotiating or otherwise disposing of the Note; it being understood, 
however, that the disposition of Abbott's property shall at all times be and 



remain within its control, and (b) the Note has not been registered under 
section 5 of the Securities Act and that Abbott will only re-offer or resell 
the Note purchased by Abbott under this Agreement pursuant to an effective 
registration statement under the Securities Act or in accordance with an 
available exemption from the requirements of section 5 of the Securities Act.

4.4    NO CONFLICT.  The execution and delivery of this Agreement by Abbott 
and the performance of Abbott's obligations hereunder, (a) are not in 
violation or breach of, and will not conflict with or constitute a default 
under, any of the terms of the Certificate of Incorporation or Bylaws of 
Abbott or any of its Subsidiaries, or any material contract, agreement or 
commitment binding upon Abbott or any of its assets or properties; (b) will 
not result in the creation or imposition of any lien, encumbrance, equity or 
restriction in favor of any third party upon any of the assets or properties 
of Abbott; and (c) will not conflict with or violate any applicable law, 
rule, regulation, judgment, order or decree of any government, governmental 
instrumentality or court having jurisdiction over Abbott or any of its assets 
or properties.

4.5    BROKERS OR FINDERS.  Abbott has not dealt with any broker or finder in
connection with the transactions contemplated by this Agreement.  Abbott has not
incurred, and shall not incur, directly or indirectly, any liability for any
brokerage or finders' fees or agents commissions or any similar charges in
connection with this Agreement or any transaction contemplated hereby.

5.     COVENANTS OF THE COMPANY.  From and after the Closing Date and
continuing so long as any amount remains unpaid on the Note, the Company and its
Subsidiaries covenant and agree with Abbott that:

5.1    CORPORATE EXISTENCE.  The Company shall do or cause to be done all
things necessary to preserve and keep in full force and effect the existence,
rights and franchises of the Company and its Subsidiaries.

5.2    CONDUCT OF BUSINESS IN NORMAL COURSE.  The Company and its Subsidiaries
shall carry on the business and their activities diligently and in the ordinary
course and shall not make or institute any unusual or novel methods of purchase,
sale, lease, management, accounting or operation that will vary materially from
the methods used by the Company as of June 30, 1998.  The Company and its
Subsidiaries shall maintain the business and their activities in a normal and
customary manner consistent with prior practice.

5.3    MAINTENANCE.  The Company will maintain, preserve and keep, and will
cause each of its Subsidiaries to maintain, preserve and keep, its material
properties which are used or useful in the conduct of its business (whether
owned in fee or a leasehold interest) in good repair and working order and from
time to time will make all necessary repairs, replacements, renewals and
additions so that at all times the efficiency thereof shall be maintained in all
material respects.

5.4    PRESERVATION OF BUSINESS AND RELATIONSHIPS.  Neither the Company nor 
any of its 



Subsidiaries will engage in any business if, as a result, the general nature 
of the business, taken on a consolidated basis, which would then be engaged 
in by the Company and its Subsidiaries would be substantially changed from 
the general nature of the business engaged in by the Company and its 
Subsidiaries on the date of this Agreement.

5.5    MERGER; ACQUISITIONS.  Except with contemporaneous notice to Abbott, the
Company shall not (a) consolidate with or merge into any other Person, (b)
acquire or agree to acquire by merging or consolidating with, or by purchasing a
substantial portion of the assets of, or by any other manner, any business or
any Person or division thereof, or (c) otherwise acquire or agree to acquire any
assets which are material to the Company except in the ordinary course of
business consistent with prior practice.

5.6    SALE OR LEASE OF ASSETS; DISPOSITIONS.  Except with contemporaneous
notice to Abbott, the Company shall not sell, lease, transfer or otherwise
dispose of any of its assets (other than the sale of inventory in the ordinary
course of business), except in the ordinary course of business consistent with
prior practice.

5.7    INDEBTEDNESS.  Except with contemporaneous notice to Abbott, the Company
shall not incur any indebtedness for borrowed money other than customary Senior
Indebtedness (as defined herein) or guarantee any such indebtedness or issue or
sell any debt securities of the Company or guarantee any debt securities of
others except in connection with the purchase of inventory pursuant to the
existing bank line of credit.

5.8    INSURANCE.  The Company shall at all times during the term of this
Agreement maintain product liability insurance covering the products with
minimum annual limits of Two Million Dollars ($2,000,000)  per occurrence and
Two Million Dollars ($2,000,000)  in the aggregate.  The Company shall maintain
such insurance for a minimum of five (5) years after termination of this
Agreement.  Within thirty (30) days of the Closing Date, the Company shall
deliver to Abbott a certificate of insurance evidencing such insurance and
stating that the policy will not be canceled or modified without at least thirty
(30) days prior written notice to Abbott.

5.9    TAXES, CLAIMS FOR LABOR AND MATERIALS, COMPLIANCE WITH LAWS.  The
Company will promptly pay and discharge, and will cause each of its Subsidiaries
promptly to pay and discharge, all lawful taxes, assessments and governmental
charges or levies imposed upon the Company or such Subsidiary, respectively, or
upon or in respect of all or any part of the property or business of the Company
or such Subsidiary, all trade accounts payable in accordance with usual and
customary business terms, and all claims for work, labor or materials, which if
unpaid might become a Lien upon any property of the Company or such Subsidiary;
provided, however, that the Company or such Subsidiary shall not be required to
pay any such tax, assessment, charge, levy, account payable or claim if (a) the
validity, applicability or amount thereof is being contested in good faith by
appropriate actions or proceedings which will prevent the forfeiture or sale of
any property of the Company or such Subsidiary or any material interference with
the use thereof by the Company or such Subsidiary, and (b) the Company or such
Subsidiary shall set aside, in accordance with GAAP, on its books, reserves
deemed by it to be adequate with respect thereto.  The 



Company will promptly comply and will cause each of its Subsidiaries to 
comply with all laws, ordinances or governmental rules and regulations to 
which it is subject including, without limitation, the Occupational Safety 
and Health Act of 1970, as amended, ERISA and all laws, ordinances, 
governmental rules and regulations relating to environmental protection in 
all applicable jurisdictions, the violation of which could materially and 
adversely affect the properties, business, profits or condition of the 
Company and its Subsidiaries, taken as a whole.

5.10   NOTICE OF CLAIMS AND LITIGATION.  The Company will give prompt notice to
Abbott of any claim or action at law or in equity, or before any governmental,
administrative or regulatory body or arbitration panel instituted against the
Company or its Subsidiaries, or disputes that have a high probability of
resulting in a suit of significance against the Company or its Subsidiaries
involving a claim against the Company or its Subsidiaries, for damages in excess
of Two Hundred Fifty Thousand Dollars ($250,000) or which, if concluded
adversely to the Company or its Subsidiaries, would materially and adversely
affect the business or assets of the Company or its Subsidiaries.

5.11   DISPOSAL OF SHARES OF A SUBSIDIARY.  Neither the Company nor its
Subsidiaries will sell, pledge or otherwise dispose of any shares of the stock
(including as "stock" for the purposes of this Section 5.11 any options or
warrants to purchase stock or other Securities exchangeable for or convertible
into stock) of a Subsidiary, nor will any Subsidiary issue, sell, pledge,
encumber or otherwise dispose of any shares of its own stock, if the effect of
the transaction would be to reduce the proportionate interest of the Company and
its other Subsidiaries in the outstanding stock of a Subsidiary whose shares are
the subject of the transaction, nor will its Subsidiary issue, sell, pledge,
encumber or dispose of any shares of its own Preferred Stock.

5.12   TRANSACTIONS WITH AFFILIATES.  Except for transactions and arrangements
with employee Affiliates, the Company will not, and will not permit its
Subsidiaries to, enter into or be a party to any material transaction or
arrangement with any Affiliate (including, without limitation, the purchase
from, sale to or exchange of property with, or the rendering of any service by
or for, any Affiliate), except pursuant to the reasonable requirements of the
Company's or its Subsidiaries' business and upon fair and reasonable terms no
less favorable to the Company or its Subsidiaries than would be obtained in a
comparable arm's-length transaction with a Person other than an Affiliate.  To
the best knowledge of the Company, the Company has properly disclosed all
affiliate transactions in the Company's filings with the Securities and Exchange
Commission.

5.13   REPORTS AND ACCESS TO INFORMATION.  Not more than once during any twelve
(12) month period, the Company shall afford to Abbott and shall cause its
independent accountants to afford to Abbott, and its accountants, counsel and
other representatives, reasonable access during normal business hours to the
Company's properties, books, contracts, commitments and records and to the
independent accountants reasonable access to the audit work papers and other
records of the Company's accountants.  The Company shall furnish promptly to
Abbott (a) a copy of each report, schedule and other document filed or received
by the Company during such period pursuant to the requirements of federal and



state securities laws and (b) all other material information concerning the
business, properties and personnel of the Company and any other materials as
Abbott may reasonably request.  Abbott will not use such information for
purposes other than this Agreement and will otherwise hold all confidential
material contained in such information in confidence (and Abbott will cause its
consultants and advisors to also hold such information in confidence).

5.14   RULE 144 REPORTING.  With a view to making available the benefits of
certain rules and regulations of the Commission which may permit the sale of the
restricted Common Stock to the public without registration, as long as a public
market exists for the Common Stock, the Company agrees to use its best efforts
to:

(a)    Make and keep public information available, as those terms are
understood and defined in Rule 144 under the Securities Act;

(b)    File with the Commission in a timely manner all reports and other
documents required of the Company under the Securities Act and the Exchange Act;

(c)    So long as a Holder owns any restricted Common Stock, furnish to the
Holder forthwith upon request a written statement by the Company as to its
compliance with the reporting requirements of Rule 144, and of the Securities
Act and the Exchange Act, a copy of the most recent annual or quarterly report
of the Company, and such other reports and documents of the Company and other
information in the possession of or reasonably obtainable by the Company as a
Holder may reasonably request in availing itself of any rule or regulation of
the Commission allowing a Holder to sell any such securities without
registration.

6.     CREDIT AGREEMENT.

6.1    CREDIT AGREEMENT.  Concurrently herewith, the Company and Abbott shall
enter into the Credit Agreement in the form attached hereto as Exhibit C. 
Pursuant to the Credit Agreement, at the Company's sole discretion, the Company
may require Abbott, as lender, to loan to the Company, as borrower, an amount
not to exceed an aggregate of Five Million Dollars ($5,000,000) (the "Credit
Facility").

6.2    TERMINATION OF THE CREDIT AGREEMENT.  The Company's option to require
Abbott to loan money pursuant to the Credit Agreement shall terminate upon the
earlier of (a) July 31, 1999, (b) the termination of the Distribution Agreement
pursuant to its terms (except for termination of the Distribution Agreement by
Abbott without cause) or otherwise resulting from a material breach or default
by the Company of any covenant, condition or other provision thereof, or
(c) notice from Abbott following an Event of Default.

6.3    DEFAULT AND CROSS DEFAULTS.  If an Event of Default occurs, the 
Company shall not borrow pursuant to the Credit Facility during the time of 
the Event of Default, and Abbott shall have the right to terminate the Credit 
Facility upon written notice to the Company.  If Abbott does not exercise its 
right to terminate the Credit Facility during the Event of Default, 



thirty (30) days after such Event of Default is cured or remedied, the 
Company may borrow pursuant to the Credit Facility unless the Credit Facility 
has terminated in accordance with Section 6.2 hereof.

7.     ADDITIONAL AGREEMENTS.  Notwithstanding the covenants and agreements 
of the Company set forth in Section 5 hereof, the Company and Abbott further 
agree that no such covenants and agreements shall prevent any sale, 
disposition, spin-off, spin-out, license or any other transfer of the 
Company's or any Subsidiary's assets and technology outside the Field (as 
such term is defined in the Distribution Agreement).

8.     CONDITIONS PRECEDENT.

8.1    CONDITIONS TO OBLIGATIONS OF ABBOTT.  The obligations of Abbott to
consummate this Agreement are subject to the satisfaction on or prior to the
Closing Date of the following conditions, unless waived by Abbott:

(a)    REPRESENTATIONS AND WARRANTIES.  The representations and warranties of
the Company and its Subsidiaries set forth in this Agreement shall be true and
correct in all material respects as of the date of this Agreement and as if made
at and as of the Closing Date, except as otherwise contemplated by this
Agreement, and Abbott shall have received a certificate or certificates signed
by the Chief Executive Officer of the Company to such effect.

(b)    PERFORMANCE OF OBLIGATIONS.  The Company shall have performed all
obligations required to be performed by it under this Agreement prior to the
Closing Date, and Abbott shall have received a certificate signed by the Chief
Executive Officer of the Company to such effect.

(c)    NO MATERIAL ADVERSE CHANGE.  There shall have been no changes in the
condition (financial or otherwise), business, prospects, employees, operations,
obligations or liabilities of the Company which, in the aggregate, have had or
may be reasonably expected to have a materially adverse effect on the financial
condition, business, or operations of the Company on a consolidated basis.

(d)    DISTRIBUTION AGREEMENT.  The Company and Abbott shall have entered into
a Distribution Agreement in the form attached hereto as Exhibit B.

(e)    CREDIT AGREEMENT.  The Company and Abbott shall have entered into a
Credit Agreement in the form attached hereto as Exhibit C.

(f)    SECURITY AGREEMENT.  The Company and Abbott shall have entered into a
Security Agreement in the form attached hereto as Exhibit D.

(g)    NOTE.  The Company shall have tendered to Abbott the Note.

8.2    CONDITIONS TO OBLIGATIONS OF THE COMPANY.  The obligations of the
Company to 



consummate the transactions contemplated hereby are subject to the 
satisfaction on or prior to the Closing Date of the following conditions, 
unless waived by the Company:

(a)    REPRESENTATIONS AND WARRANTIES.  The representations and warranties of
Abbott set forth in this Agreement shall be true and correct in all material
respects as of the date of this Agreement and as if made at and as of the
Closing Date, except as otherwise contemplated by this Agreement.

(b)    PERFORMANCE OF OBLIGATIONS OF ABBOTT.  Abbott shall have performed in
all material respects all obligations required to be performed by it under this
Agreement prior to the Closing Date.

(c)    DISTRIBUTION AGREEMENT.  The Company and Abbott shall have entered into
a Distribution Agreement in the form attached hereto as Exhibit B.

(d)    CREDIT AGREEMENT.  The Company and Abbott shall have entered into a
Credit Agreement in the form attached hereto as Exhibit C.

(e)    PAYMENT.  Abbott shall have tendered to the Company Five Million Dollars
($5,000,000) in exchange for the Note.

9.     EVENTS OF DEFAULT.  If any of the events specified in this Section 9
shall occur (herein individually referred to as an "Event of Default"), the
Holder of the then outstanding Note issued pursuant to this Agreement may, so
long as such condition exists, declare the entire principal and unpaid accrued
interest hereon immediately due and payable, by notice in writing to the
Company:

9.1    PAYMENTS.  Default in the payment of the principal and unpaid accrued
interest of the Note when due and payable if such default is not cured by the
Company within ten (10) days after the Holder has given the Company written
notice of such default.

9.2    BANKRUPTCY.  The institution by the Company of proceedings to be
adjudicated as bankrupt or insolvent, or the consent by it to institution of
bankruptcy or insolvency proceedings against it or the filing by it of a
petition or answer or consent seeking reorganization or release under the
federal Bankruptcy Code, or any other applicable federal or state law, or the
consent by it to the filing of any such petition or the appointment of a
receiver, liquidator, assignee, trustee or other similar official of the
Company, or of any substantial part of its property, or the making by it of an
assignment for the benefit of creditors, or the taking of corporate action by
the Company in furtherance of any such action.

9.3    COMMENCEMENT OF AN ACTION.  If, within sixty (60) days after the 
commencement of an action against the Company (and service of process in 
connection therewith on the Company) seeking any bankruptcy, insolvency, 
reorganization, liquidation, dissolution or similar relief under any present 
or future statute, law or regulation, such action shall not have been 
resolved in favor of the Company or all orders or proceedings thereunder 
affecting the operations or the business of the Company stayed, or if the 
stay of any such order or 



proceeding shall thereafter be set aside, or if, within sixty (60) days after 
the appointment without the consent or acquiescence of the Company of any 
trustee, receiver or liquidator of the Company or of all or any substantial 
part of the properties of the Company, such appointment shall not have been 
vacated.

9.4    DEFAULT OF SENIOR INDEBTEDNESS.  Any declared default of the Company
under any Senior Indebtedness (as defined in Section 10 hereof) that gives the
holder thereof the right to accelerate such Senior Indebtedness, and such Senior
Indebtedness is in fact accelerated by the holder.

9.5    COVENANTS AND AGREEMENTS.  The Company shall default in the performance
of any of its material covenants and agreements set forth in any provision of
this Agreement and the continuance of such default for thirty (30) days after
the Holder has given the Company written notice of such default.

9.6    DEFAULT UNDER OTHER AGREEMENTS.  The Company breaches or defaults on any
material covenant, condition or other provision of the Distribution Agreement
and such breach or default continues after the applicable grace period, if any,
specified therein but in no event more than thirty (30) days after the Holder
has given the Company written notice of such breach or default.

9.7    CHANGE OF CONTROL OF THE COMPANY.  Any change in control of the Company
which includes any consolidation of the Company with, or merger of the Company
into, any other Person, any merger of another Person into the Company (other
than a merger which does not result in any reclassification, conversion,
exchange or cancellation of outstanding shares of Common Stock), any acquisition
of at least a majority of the Voting Stock of the Company or any sale or
transfer of all or substantially all of the business or assets of the Company (a
"Change of Control"), or Abbott's receipt of written notice from the Company
that a Change of Control will occur as described in Section 11.10 hereof.

9.8    OTHER REMEDIES.  If any Event of Default shall occur and be continuing,
Abbott shall have, in addition to the remedies set forth in Section 9 hereof,
all other remedies otherwise available at law and equity.  In addition, if an
Event of Default shall occur and be continuing, Abbott may terminate its
obligations under the Credit Facility as described in Section 6.2 hereof, and
declare the entire principal and unpaid interest due under the Credit Facility
Note, if any, immediately due and payable in accordance with the terms of the
Credit Agreement.

10.    SUBORDINATION.  The indebtedness evidenced by the Note is hereby
expressly subordinated except as otherwise provided in the Security Agreement
attached hereto as Exhibit D, to the extent and in the manner hereinafter set
forth, in right of payment to the prior payment in full of all the Company's
Senior Indebtedness (as defined herein).

10.1   SENIOR INDEBTEDNESS.  As used in the Note, the term "Senior 
Indebtedness" shall mean the principal of and unpaid accrued interest on:  
(a) all indebtedness of the Company to banks, insurance companies or other 
financial institutions regularly engaged in the business 



of lending money, which is for money borrowed by the Company (whether or not 
secured), and (b) any such indebtedness or any debentures, notes or other 
evidence of indebtedness issued in exchange for such Senior Indebtedness, or 
any indebtedness arising from the satisfaction of such Senior Indebtedness by 
a guarantor.

10.2   DEFAULT ON SENIOR INDEBTEDNESS.  If there should occur any receivership,
insolvency, assignment for the benefit of creditors, bankruptcy, reorganization
or arrangements with creditors (whether or not pursuant to bankruptcy or other
insolvency laws), sale of all or substantially all of the assets, dissolution,
liquidation or any other marshalling of the assets and liabilities of the
Company, or if the Note shall be declared due and payable upon the occurrence of
an Event of Default with respect to any Senior Indebtedness, then (a) no amount
shall be paid by the Company in respect of the principal of or interest on the
Note at the time outstanding, unless and until the principal of and interest on
the Senior Indebtedness then outstanding shall be paid in full, and (b) no claim
or proof of claim shall be filed with the Company by or on behalf of the Holder
of the Note that shall assert any right to receive any payments in respect of
the principal of and interest on the Note, except subject to the payment in full
of the principal of and interest on all of the Senior Indebtedness then
outstanding.  If there occurs an Event of Default that has been declared in
writing with respect to any Senior Indebtedness, or in the instrument under
which any Senior Indebtedness is outstanding, permitting the holder of such
Senior Indebtedness to accelerate the maturity thereof, then, unless and until
such Event of Default shall have been cured or waived or shall have ceased to
exist, or all Senior Indebtedness shall have been paid in full, no payment shall
be made in respect of the principal of or interest on the Note, unless within
three (3) months after the happening of such Event of Default, the maturity of
such Senior Indebtedness shall not have been accelerated.

10.3   EFFECT OF SUBORDINATION.  Subject to the rights, if any, of the holders
of Senior Indebtedness under this Section 10 to receive cash, securities or
other properties otherwise payable or deliverable to the Holder of the Note,
nothing contained in this Section 10 shall impair, as between the Company and
the Holder, the obligation of the Company, subject to the terms and conditions
hereof, to pay to the Holder the principal hereof and interest hereon as and
when the same become due and payable, or shall prevent the Holder of the Note,
upon default hereunder, from exercising all rights, powers and remedies
otherwise provided herein or by applicable law.

10.4   SUBROGATION.  Subject to the payment in full of all Senior Indebtedness
and until the Note shall be paid in full, the Holder shall be subrogated to the
rights of the holders of Senior Indebtedness (to the extent of payments or
distributions previously made to such holders of Senior Indebtedness pursuant to
the provisions of Section 10.2 hereof) to receive payments or distributions of
assets of the Company applicable to the Senior Indebtedness.  No such payments
or distributions applicable to the Senior Indebtedness shall, as between the
Company and its creditors, other than the holders of Senior Indebtedness and the
Holder, be deemed to be a payment by the Company to or on account of the Note;
and for the purposes of such subrogation, no payments or distributions to the
holders of Senior Indebtedness to which the Holder would be entitled except for
the provisions of this Section 10 shall, as between the Company and its
creditors, other than the holders of Senior Indebtedness and the 



Holder, be deemed to be a payment by the Company to or on account of the 
Senior Indebtedness.

10.5   UNDERTAKING.  By its acceptance of the Note, the Holder agrees to
execute and deliver such documents as may be reasonably requested from time to
time by the Company or the lender of any Senior Indebtedness in order to
implement the foregoing provisions of this Section 10.

11.    CONVERSION OF NOTE.

11.1   CONVERSION PRIVILEGE AND CONVERSION PRICE.  Subject to and upon
compliance with the provisions of this Section 11, at the option of Abbott at
any time and at Abbott's sole discretion without regard to the price of the
Common Stock and the Conversion Price (as defined herein), Note may be converted
at the principal amount thereof, into fully paid and nonassessable shares of
Common Stock at the Conversion Price, in effect at the time of conversion.  Such
conversion right shall expire at the close of business on August 19, 2003.  The
price at which shares of Common Stock shall be delivered upon conversion (the
"Conversion Price") shall be initially   *   per share of Common Stock.  The
Conversion Price shall be adjusted in certain instances as provided in this
Section 11.

11.2   EXERCISE OF CONVERSION PRIVILEGE.  In order to exercise the conversion
privilege, Abbott shall surrender the Note duly endorsed or assigned to the
Company or in blank, at any office or agency of the Company maintained for that
purpose, accompanied by written notice of conversion in the form provided on the
Note (or such other notice as is acceptable to the Company) at such office or
agency that Abbott elects to convert such Note.  Upon conversion the Company
shall pay interest accrued but unpaid on the Note surrendered for conversion
through the date of such conversion.

The Note shall be deemed to have been converted immediately prior to the close
of business on the day of surrender of the whole portion of the principal amount
thereof for conversion in accordance with the foregoing provisions, and at such
time the rights of Abbott under the Note shall cease, and the Person or Persons
entitled to receive the Common Stock issuable upon conversion shall be treated
for all purposes as the record holder or holders of such Common Stock at such
time.  As promptly as practicable on or after the conversion date, the Company
shall issue and shall deliver at such office or agency a certificate or
certificates for the number of duly authorized, validly issued, fully paid and
nonassessable shares of Common Stock issuable upon conversion, together with
payment in lieu of any fraction of a share, as provided in Section 11.3 hereof.

11.3   FRACTIONS OF SHARES.  No fractional shares of Common Stock shall be
issued upon conversion of the Note.  Instead of any fractional share of Common
Stock which would otherwise be issuable upon the conversion of the Note, the
Company shall pay a cash adjustment in respect of such fraction of a share of
Common Stock in an amount equal to the remaining amount which is not converted
by reason of this Section 11.3.

11.4   ADJUSTMENT OF CONVERSION PRICE.



(a)    In case the Company shall pay or make a dividend or other distribution
on any class of capital stock of the Company in Common Stock, the Conversion
Price in effect at the opening of business on the day following the date fixed
for the determination of stockholders entitled to receive such dividend or other
distribution shall be reduced by multiplying such Conversion Price by a fraction
the numerator of which shall be the number of shares of Common Stock outstanding
at the close of business on the date fixed for such determination and the
denominator shall be the sum of such number of shares and the total number of
shares constituting such dividend or other distribution, such reduction to
become effective immediately after the opening of business on the day following
the date fixed for such determination.  For the purposes of this Section
11.4(a), the number of shares of Common Stock at any time outstanding shall not
include shares held in the treasury of the Company but shall include shares
issuable in respect of scrip certificates issued in lieu of fractions of shares
of Common Stock.  The Company will not pay any dividend or make any distribution
on shares of Common Stock held in the treasury of the Company.

(b)    In case the Company shall issue rights, options or warrants to all
holders of its Common Stock (not being available on an equivalent basis to
Abbott upon conversion) entitling them to subscribe for or purchase shares of
Common Stock at a price per share less than the current market price per share
of the Common Stock (determined as provided in Section 11.4(h) hereof) on the
date fixed for the determination of stockholders entitled to receive such
rights, options or warrants (other than pursuant to a dividend reinvestment
plan), the Conversion Price in effect at the opening of business on the day
following the date fixed for such determination shall be reduced to a price
(calculated to the nearest cent) determined by multiplying such Conversion Price
by a fraction the numerator of which shall be the number of shares of Common
Stock outstanding at the close of business on the date fixed for such
determination plus the number of shares of Common Stock which the aggregate
consideration received by the Company for the total number of additional shares
of Common Stock so offered for subscription or purchase would purchase at such
Conversion Price in effect immediately prior to the date fixed for such
determination and the denominator of which shall be the number of shares of
Common Stock outstanding at the close of business on the date fixed for such
determination plus the number of shares of Common Stock so offered for
subscription or purchase, such reduction to become effective immediately after
the opening of business on the day following the date fixed for such
determination.  For purposes of calculating the Conversion Price in this Section
11.4(b), the number of shares of Common Stock outstanding immediately prior to
the date fixed for such determination of rights, options or warrants shall be
calculated as if all shares had been fully converted into shares of Common
Stock.  Also, for the purposes of this Section 11.4(b), the number of shares of
Common Stock at any time outstanding shall not include shares held in the
treasury of the Company but shall include shares issuable in respect of scrip
certificates issued in lieu of fractions of shares of Common Stock.  The Company
will not issue any rights, options or warrants in respect of shares of Common
Stock held in the treasury of the Company.

(c)    In case outstanding shares of Common Stock shall be subdivided into a 
greater number of shares of Common Stock, the Conversion Price in effect at 
the opening of 



business on the day following the day upon which such subdivision becomes 
effective shall be proportionately reduced, and, conversely, in case 
outstanding shares of Common Stock shall each be combined into a smaller 
number of shares of Common Stock, the Conversion Price in effect at the 
opening of business on the day following the day upon which such combination 
becomes effective shall be proportionately increased, such reduction or 
increase, as the case may be, to become effective immediately after the 
opening of business on the day following the day upon which such subdivision 
or combination becomes effective.

(d)    In case the Company shall, by dividend or otherwise, distribute to all
holders of its Common Stock evidences of its indebtedness or assets (including
securities, but excluding any rights, options or warrants referred to in Section
11.4(b) hereof, any dividend or distribution paid exclusively in cash and any
dividend or distribution referred to in Section 11.4), the Conversion Price
shall be adjusted so that the same shall equal the price determined by
multiplying the Conversion Price in effect immediately prior to the close of
business on the date fixed for the determination of stockholders entitled to
receive such distribution by a fraction the numerator of which shall be the
current market price per share (determined as provided in Section 11.4(h)) of
the Common Stock on the date fixed for such determination less the then fair
market value (as determined by an independent majority of the Board of
Directors, whose determination shall be conclusive and described in a board
resolution) of the portion of the assets or evidences of indebtedness so
distributed applicable to one share of Common Stock and the denominator shall be
such current market price per share of the Common Stock, such adjustment to
become effective immediately prior to the opening of business on the day
following the date fixed for the determination of stockholders entitled to
receive such distribution.  In any case in which this Section 11.4(d) is
applicable, Section 11.4(b) hereof shall not be applicable.

(e)    In case the Company shall, by dividend or otherwise, distribute to all 
holders of its Common Stock cash (excluding any cash that is distributed upon 
a merger or consolidation to which Section 11.10 hereof applies or as part of 
a distribution referred to in paragraph (d) of this Section 11.4) in an 
aggregate amount that, combined together with (i) the aggregate amount of any 
other distributions to all holders of its Common Stock made exclusively in 
cash within the twelve (12) months preceding the date of payment of such 
distribution and in respect of which no adjustment pursuant to this paragraph 
(e) has been made and (ii) the aggregate of any cash plus the fair market 
value (as determined by an independent majority of the Board of Directors, 
whose determination shall be conclusive and described in a Board Resolution) 
of consideration payable in respect of any tender offer by the Company or any 
of its Subsidiaries for all or any portion of the Common Stock concluded 
within the twelve (12) months preceding the date of payment of such 
distribution and in respect of which no adjustment pursuant to paragraph (f) 
of this Section 11.4 has been made, exceeds ten percent (10%) of the product 
of the current market price per share of the Common Stock on the date for the 
determination of holders of shares of Common Stock entitled to receive such 
distribution multiplied by the number of shares of Common Stock outstanding 
on such date, then, and in each such case, immediately after the close of 
business on such date for determination, the Conversion Price shall be 
reduced so that the same shall equal the price determined by multiplying the 
Conversion Price in effect immediately prior to the close of 



business on the date fixed for determination of the stockholders entitled to 
receive such distribution by a fraction (A) the numerator of which shall be 
equal to the current market price per share of the Common Stock (determined 
as provided in paragraph (h) of this Section 11.4) on the date fixed for such 
determination less an amount equal to the quotient of (x) the excess of such 
combined amount over such ten percent (10%) and (y) the number of shares of 
Common Stock outstanding on such date for determination and (B) the 
denominator of which shall be equal to the current market price per share of 
the Common Stock (determined as provided in paragraph (h) of this Section 
11.4) on such date for determination.

(f)    In case a tender offer made by the Company or any Subsidiary for all or
any portion of the Common Stock shall expire and such tender offer (as amended
upon the expiration thereof) shall require the payment to stockholders (based on
the acceptance (up to any maximum specified in the terms of the tender offer) of
Purchased Shares (as defined herein)) of an aggregate consideration having a
fair market value (as determined by an independent majority of the Board of
Directors, whose determination shall be conclusive and described in a board
resolution) that combined together with (i) the aggregate of the cash plus the
fair market value (as determined by an independent majority of the Board of
Directors, whose determination shall be conclusive and described in a board
resolution), as of the expiration of such tender offer, of consideration payable
in respect of any other tender offer, by the Company or any Subsidiary for all
or any portion of the Common Stock expiring within the twelve (12) months
preceding the expiration of such tender offer and in respect of which no
adjustment pursuant to this paragraph (f) has been made and (ii) the aggregate
amount of any distributions to all holders of the Common Stock made exclusively
in cash within twelve (12) months preceding the expiration of such tender offer
and in respect of which no adjustment pursuant to paragraph (e) of this Section
11.4 has been made, exceeds ten percent (10%) of the product of the current
market price per share of the Common Stock (determined as provided in paragraph
(h) of this Section 11.4) as of the last time (the "Expiration Time") tenders
could have been made pursuant to such tender offer (as it may be amended)
multiplied by the number of shares of Common Stock outstanding (including any
tendered shares) on the Expiration Time, then, and in each such case,
immediately prior to the opening of business on the day after the date of the
Expiration Time, the Conversion Price shall be adjusted so that the same shall
equal the price determined by multipying the Conversion Price in effect
immediately prior to the close of business on the date of the Expiration Time by
a fraction (A) the numerator of which shall be equal to (1) the product of (a)
the current market price per share of the Common Stock (determined as provided
in paragraph (h) of this Section 11.4) on the date of the Expiration Time and
(b) the number of shares of Common Stock outstanding (including any tendered
shares) on the Expiration Time, less (2) the amount of cash plus the fair market
value (determined as aforesaid) of the aggregate consideration payable to
stockholders based on the acceptance (up to any maximum specified in the terms
of the tender offer) of Purchased Shares, and (B) the denominator of which shall
be equal to the product of (1) the current market price per share of the Common
Stock (determined as provided in paragraph (h) of this Section 11.4) as of the
Expiration Time and (2) the number of shares of Common Stock outstanding
(including any tendered shares) as of the Expiration Time less the number of all
shares validly tendered and not withdrawn as of the Expiration Time (the shares
deemed so accepted up to any such 



maximum, being referred to as the "Purchased Shares").

(g)    The reclassification of Common Stock into securities including
securities other than Common Stock (other than any reclassification upon a
consolidation or merger to which Section 11.10 hereof applies) shall be deemed
to involve (i) a distribution of such securities other than Common Stock to all
holders of Common Stock (and the effective date of such reclassification shall
be deemed to be "the date fixed for the determination of stockholders entitled
to receive such distribution" and the "date fixed for such determination" within
the meaning of paragraph (d) of this Section 11.4), and (ii) a subdivision or
combination, as the case may be, of the number of shares of Common Stock
outstanding immediately prior to such reclassification into the number of shares
of Common Stock outstanding immediately thereafter (and the effective date of
such reclassification shall be deemed to be "the day upon which such subdivision
becomes effective" or "the day upon which such combination becomes effective,"
as the case may be, and "the day upon which such subdivision or combination
becomes effective" within the meaning of paragraph (c) of this Section 11.4).

(h)    For the purpose of any computation under paragraphs (d), (e) and (f) of
this Section 11.4, the current market price per share of Common Stock on any
date shall be deemed to be the average of the daily Closing Prices for the five
(5) consecutive trading days selected by the Company commencing not more than
twenty (20) trading days before, and ending not later than, the earlier of the
day in question and the day before the "ex" date with respect to the issuance or
distribution requiring such computation.  The "Closing Price" for each trading
day shall be the reported last sale price regular way or, in case no such
reported sale takes place on such day, the average of the reported closing bid
and asked prices regular way, in either case on the principal national
securities exchange on which the Common Stock is listed or admitted to trading
or, if not listed or admitted to trading on any national securities exchange, on
the National Association of Securities Dealers Automated Quotations system
("Nasdaq") National Market System ("Nasdaq National Market") or, if not listed
or admitted to trading on Nasdaq National Market, on Nasdaq, or, if the Common
Stock is not listed or admitted to trading on any national securities exchange
or Nasdaq National Market or quoted on Nasdaq, the average of the closing bid
and asked prices in the over-the-counter market as furnished by any New York
Stock Exchange member firm selected from time to time by the Company for that
purpose, or, if the Common Stock does not have any closing bid and asked prices
in the over-the-counter market during the relevant period of time, the fair
market value per share as determined by an independent majority of the Board of
Directors as of the most recent available month-end determined pursuant to GAAP.
For purposes of this paragraph, the term "'ex' date," when used with respect to
any issuance or distribution, shall mean the first date on which the Common
Stock trades regular way on such exchange or in such market without the right to
receive such issuance or distribution.

(i)    No adjustment in the Conversion Price shall be required unless such
adjustment (plus any adjustments not previously made by reason of this paragraph
(i)) would require an increase or decrease of at least one percent (1%) in such
price; provided, however, that any adjustments which by reason of this paragraph
(i) are not required to be made shall be carried forward and taken into account
in any subsequent adjustment.  All calculations under this paragraph (i) shall
be made to the nearest cent.



(j)    The Company may make such reductions in the Conversion Price, in
addition to those required by paragraphs (a), (b), (c), (d), (e) and (f) of this
Section 11.4, as it considers to be advisable in order to avoid or diminish any
income tax to any holders of shares of Common Stock resulting from any dividend
or distribution of stock or issuance of rights or warrants to purchase or
subscribe for stock or from any event treated as such for federal income tax
purposes or for any other reasons.  An independent majority of the Board of
Directors shall have the power to resolve any ambiguity or correct any error in
this Section 11.4 and its actions in so doing shall be final and conclusive.

11.5   NOTICE OF ADJUSTMENTS OF CONVERSION PRICE.  Whenever the Conversion
Price is adjusted as herein provided:

(a)    the Company shall compute the adjusted Conversion Price in accordance
with Section 11.4 hereof and shall prepare a certificate signed by the Chief
Financial Officer of the Company setting forth the adjusted Conversion Price and
showing in reasonable detail the facts upon which such adjustment is based, and
such certificate shall forthwith be filed at the offices of the Company.

(b)    a notice stating that the Conversion Price has been adjusted and setting
forth the adjusted Conversion Price shall forthwith be required, and as soon as
practicable after it is required, such notice shall be mailed by the Company to
the Holder in accordance with the terms of Section 14.2 herein.

11.6   NOTICE OF CERTAIN CORPORATE ACTION.  In case:

(a)    the Company shall declare a dividend (or any other distribution) on its
Common Stock payable otherwise than in cash out of its earned surplus; or

(b)    the Company shall authorize the granting to the holders of its Common
Stock of rights or warrants to subscribe for or purchase any shares of capital
stock of any class or of any other rights; or

(c)    of any reclassification of the Common Stock of the Company (other than a
subdivision or combination of its outstanding shares of Common Stock), or of any
consolidation, merger or share exchange to which the Company is a party and for
which approval of any stockholders of the Company is required, or of the sale or
transfer of all or substantially all of the assets of the Company; or

       (d)    of the voluntary or involuntary dissolution, liquidation or 
   winding up of the Company;

then the Company shall cause to be filed at the offices of the Company, and
shall cause to be mailed to the Holder at its last addresses as it shall appear
in the Note Register, at least twenty (20) days (or ten (10) days in any case
specified in clause (a) or (b) of this Section 11.6) prior to the applicable
record or effective date hereinafter specified, a notice stating (x) 



the date on which a record is to be taken for the purpose of such dividend, 
distribution, rights or warrants, or, if a record is not to be taken, the 
date as of which the holders of Common Stock of record to be entitled to such 
dividend, distribution, rights or warrants are to be determined, or (y) the 
date on which such reclassification, consolidation, merger, share exchange, 
sale, transfer, dissolution, liquidation or winding up is expected to become 
effective, and the date as of which it is expected that holders of Common 
Stock of record shall be entitled to exchange their shares of Common Stock 
for securities, cash or other property deliverable upon such 
reclassification, consolidation, merger, share exchange, sale, transfer, 
dissolution, liquidation or winding up.  Neither the failure to give such 
notice nor any defect therein shall affect the legality or validity of the 
proceedings described in clauses (a) through (d) of this Section11.6.

11.7   COMPANY TO RESERVE COMMON STOCK.  The Company shall at all times reserve
and keep available out of its authorized but unissued Common Stock, for the
purpose of effecting the conversion of the Note or the Credit Facility Note, the
full number of shares of Common Stock then issuable upon the conversion of the
Note or the Credit Facility Note.

11.8   TAXES ON CONVERSIONS.  The Company will pay any and all taxes that may
be payable in respect of the issuance or delivery of shares of Common Stock on
conversion of the Note pursuant hereto or the Credit Facility Note pursuant to
the Credit Agreement.  The Company shall not, however, be required to pay any
tax which may be payable in respect of any transfer involved in the issuance and
delivery of shares of Common Stock in a name other than that of Abbott and no
such issuance or delivery shall be made unless and until the Person requesting
such issuance has paid to the Company the amount of any such tax, or has
established to the satisfaction of the Company that such tax has been paid.

11.9   COVENANT AS TO COMMON STOCK.  The Company covenants that all shares of
Common Stock which may be issued upon conversion of the Note or the Credit
Facility Note will upon issuance be fully paid and nonassessable and, except as
provided in Section 11.8 hereof, the Company will pay all taxes, liens and
charges with respect to the issue thereof.

11.10  PROVISIONS IN CASE OF CONSOLIDATION, MERGER OR SALE OF ASSETS.  In case
of any Change of Control of the Company, the Company will notify Abbott at least
thirty (30) days prior to the closing of the transaction that will effect the
Change of Control, and Abbott may convert the Note in accordance with Section 11
hereof prior to the transaction or declare an Event of Default and accelerate
the Note and terminate this Agreement in accordance with Section 11 hereof.

11.11  TRANSFER AND EXCHANGE OF NOTE.  The Note may be freely transferred or 
assigned by Abbott without the consent of the Company.  Such transfer and 
assignment shall be made in accordance with applicable federal and state 
securities laws.  At any time and from time to time, upon not less than ten 
(10) days notice to that effect given by Abbott and, upon surrender of the 
Note at the Company's office by Abbott, the Company will deliver in exchange 
therefor, without expense to Abbott, except as set forth below, one Note for 
the same aggregate principal amount as the then unpaid principal amount of 
the Note so surrendered, provided such Note shall be in the amount of the 
full principal amount of the 



Note and there shall be no right to divide the Note, dated as of the date to 
which interest has been paid on the Note so surrendered or, if such surrender 
is prior to the payment of any interest thereon, then dated as of the date of 
issue, registered in the name of such Person as may be designated by Abbott, 
and otherwise of the same form and tenor as the Note so surrendered for 
exchange.  The Company may require the payment of a sum sufficient to cover 
any stamp tax or governmental charge imposed upon such exchange or transfer.

11.12  LOSS, THEFT, MUTILATION OR DESTRUCTION OF NOTE.  Upon receipt of
evidence satisfactory to the Company of the loss, theft, mutilation or
destruction of the Note, the Company will make and deliver without expense to
Abbott thereof, a new Note, of like tenor, in lieu of such lost, stolen,
mutilated or destroyed Note.

11.13  EXPENSES, STAMP TAX INDEMNITY.  The Company agrees to pay duplicating
and printing costs and charges for shipping the Note, adequately insured to
Abbott's home office or at such other place as Abbott may designate, and all
reasonable expenses of Abbott (including, without limitation, the reasonable
fees and expenses of any financial advisor to Abbott) relating to any proposed
or actual amendment, waivers or consents pursuant to the provisions hereof,
including, without limitation, any proposed or actual amendments, waivers, or
consents resulting from any work-out, re-negotiations or restructuring relating
to the performance by the Company of its obligations under this Agreement and
the Note.  The Company also agrees that it will pay and hold Abbott harmless
against any and all liabilities with respect to stamp and other taxes, if any,
which may be payable or which may be determined to be payable in connection with
the execution and delivery of this Agreement or the Note, whether or not the
Note is then outstanding.  The Company agrees to protect and indemnify Abbott
against any liability for any and all brokerage fees and commissions payable or
claimed to be payable to any Person (other than any Person engaged by a
Purchaser) in connection with the transactions contemplated by this Agreement.

11.14  CANCELLATION OF CONVERTED NOTE.  The Note delivered for conversion shall
be canceled by or at the direction of the Company.

12.    RIGHT OF FIRST OFFER.

12.1   THE RIGHT OF FIRST OFFER.  Subject to the terms and conditions specified
in this Section 12, the Company covenants not to sell or issue any New
Securities (as defined herein) without complying with the provisions of this
Section 12.

12.2   GRANT.  If the Company proposes to sell or issue any New Securities to
any Person, the Company hereby grants to Abbott a right of first offer to
purchase a pro rata share of New Securities that the Company may, from time to
time, propose to sell and issue.  For purposes of this Section 12, Abbott's pro
rata share of New Securities is the ratio of the number of shares of Common
Stock owned by Abbott (assuming full conversion of the Note and the Credit
Facility Note if issued and outstanding) immediately prior to the issuance of
New Securities to the total number of shares of Common Stock outstanding
immediately prior to the issuance of New Securities (assuming full conversion of
all convertible securities).



12.3   DEFINITION OF NEW SECURITIES.  "New Securities" shall mean any capital
stock (including Common Stock) of the Company whether now authorized or not, and
rights, options or warrants to purchase capital stock of the Company, and
securities of any type whatsoever that are, or may become, convertible into
capital stock of the Company; provided, however, that the term "New Securities"
does not include (a) shares of Common Stock issued upon conversion of the Note
or the Credit Facility Note, (b)shares of Common Stock (or options therefor)
issued or sold to employees, directors, consultants or advisors of the Company
for the primary purpose of soliciting or retaining their services, provided each
such person executes an agreement, in substantially the form as approved by the
Board of Directors, (c) securities issued pursuant to the acquisition of another
Person or business segment of any such Person by the Company by merger, purchase
of substantially all the assets or other reorganization whereby the Company will
own more than fifty percent (50%) of the voting power of such business entity or
business segment, (d)any borrowings, direct or indirect, from financial
institutions or other Persons by the Company, whether or not presently
authorized, including any type of loan or payment evidenced by any type of debt
instrument, provided such borrowings do not have any equity features including
warrants, options or other rights to purchase capital stock and are not
convertible into capital stock of the Company, (e)securities issued to vendors
or customers or to other persons in similar commercial situations with the
Company if such issuance is approved by the Board of Directors, (f)securities
issued in connection with any stock split, stock dividend or recapitalization of
the Company in which all holders of Common Stock are entitled to receive their
proportionate share of such issuance, and (g)any right, option or warrant to
acquire any security convertible into the securities exempted from the
definition of New Securities pursuant to clauses (a) through f) above.

12.4   EXERCISE OF RIGHT OF FIRST OFFER.  If the Company proposes to issue New
Securities, the Company shall give written notice to Abbott stating (a) its bona
fide intention to offer or issue New Securities, (b) the number of such New
Securities to be offered, (c) the price and general terms upon which it proposes
to offer such New Securities, and (d) the identity of the Persons or classes of
Persons to whom such New Securities are proposed to be issued.  Within twenty
(20) calendar days after receipt of such notice, Abbott may elect to purchase or
obtain, at the price and on the terms specified in the notice, up to its pro
rata share of such New Securities, as such pro rata share is calculated pursuant
to Section 12.2 hereof, in the event the Company proposes to issue such New
Securities to Persons, by giving written notice to the Company and stating
therein the quantity of New Securities to be purchased.  Abbott shall retain its
right of first offer pursuant to Section 12 hereof until (i) this Agreement
terminates or (ii) upon a Change of Control described in Section 11.10 hereof
and shall not be affected in any way by any previous refusals to exercise its
right of first offer and to purchase any New Securities.

12.5   TERMINATION OF RIGHT OF FIRST OFFER.  If Abbott does not fully 
exercise its right to purchase or obtain all such New Securities that Abbott 
has the right to purchase or obtain pursuant to Section 12.4 hereof, the 
Company may, during the one hundred twenty (120) day period following the 
expiration of the period provided in Section 12.4 hereof, offer the remaining 
unsubscribed New Securities to the Persons or classes of Person specified in the



notice sent to Abbott pursuant to Section 12.4 hereof, at a price not less 
than that, and upon terms no more favorable to the offeree than those, 
specified in such notice.  If the Company does not enter into an agreement 
for the sale of the New Securities within such period, or if such agreement 
is not consummated within one hundred twenty (120) days of the execution 
thereof, the right provided hereunder shall be deemed to be revived and such 
New Securities shall not be offered unless first reoffered to Abbott in 
accordance herewith. 

13.    INDEMNIFICATION.

13.1   INDEMNIFICATION BY THE COMPANY.

(a)    The Company agrees to defend and indemnify Abbott, its Subsidiaries and
their respective Affiliates, directors, officers, employees and shareholders,
and their respective successors and assigns (collectively, the "Abbott
Indemnitees"), against and hold each of them harmless from any and all losses,
liabilities, taxes, claims, suits, proceedings, demands, judgments, damages,
expenses and costs, including, without limitation, reasonable counsel fees,
costs and expenses incurred in the investigation, defense or settlement of any
claims covered by this indemnity (in this Section 13 collectively, the
"Indemnifiable Damages") which any such indemnified person may suffer or incur
by reason of (i) the inaccuracy or breach of any of the representations,
warranties and covenants of the Company contained in this Agreement or any
documents, certificate or agreement delivered pursuant hereto; or (ii) any claim
by any Person under any provision of any federal or state securities law
relating to any transaction, event, act or omission of or by the Company
occurring before or after the Closing Date; provided, however, that the total
indemnity shall not exceed the consideration received by the Company.  Nothing
herein shall limit in any way Abbott's remedies in the event of breach by the
Company of any of its covenants or agreements hereunder which are not also a
representation or warranty or for willful fraud or intentionally deceptive
material misrepresentation or omission by the Company in connection herewith or
with the transactions contemplated hereby.

(b)    Without limiting the generality of the foregoing, with respect to the
measurement of Indemnifiable Damages, Abbott (including its Subsidiaries and
their respective Affiliates, directors, officers, employees and shareholders)
and the Company and the Affiliates of any of them, shall have the right to be
put in the same financial position as they would have been in had each of the
representations, warranties and covenants of the Company been true and accurate
or the same said parties had not breached any such covenants or had any of the
events, claims or liabilities referred to in Section 13.1(a) not occurred or
been made or incurred.

(c)    Any indemnitee under this Agreement may not seek recovery under the
indemnities set forth herein unless and until the Indemnifiable Damages of such
party are greater than Twenty-Five Thousand Dollars ($25,000) measured on an
aggregate basis for all indemnitees, at which point such indemnity shall apply
to all Indemnifiable Damages.

13.2   INDEMNIFICATION BY ABBOTT.  After the Closing Date, Abbott shall, as to
those representations, warranties, covenants and agreements which are herein
made or agreed to by Abbott, indemnify and hold harmless the Company's officers
and directors and in respect of:



(a)    any damage, deficiency, losses or costs incurred by the Company 
resulting from any material misrepresentation or breach of warranty or any 
non-fulfillment of any covenant or agreement on the part of Abbott under this 
Agreement;

(b)    any claim by any person under any provision of any federal or state
securities laws relating to any event, act or omission of or by Abbott in
connection with any tender offer by Abbott; and 

(c)    any claim, action, suit, proceeding, demand, judgment, assessment, cost
and expense, including reasonable counsel fees, incident to the foregoing;
provided that the total indemnity shall not exceed  *  .

Abbott shall reimburse the Company for any liabilities, damages, deficiencies,
claims, actions, suits, proceedings, demands, judgments, assessments, costs and
expenses to which this Section 13.2 relates only if a claim for indemnification
is made by the Company within the period ending at  * .

13.3   INDEMNIFICATION PROCEDURE.  A party seeking indemnification (the
"Indemnitee") shall use its commercially reasonable best efforts to minimize any
liabilities, damages, deficiencies, claims, judgments, assessments, costs and
expenses in respect of which indemnity may be sought under this Agreement.  The
Indemnitee shall give prompt written notice to the party from whom
indemnification is sought (the "Indemnitor") of the assertion of a claim for
indemnification; provided, however, that the Indemnitee's failure to notify the
Indemnitor shall not excuse the Indemnitor's obligation to indemnify the
Indemnitee except to the extent that such failure prejudices the Indemnitor's
defense of any such claim.  No such notice of assertion of a claim shall satisfy
the requirements of this Section 13 unless it describes in reasonable detail and
in good faith the facts and circumstances upon which the asserted claim for
indemnification is based.  If any action or proceeding shall be brought in
connection with any liability or claim to be indemnified hereunder, the
Indemnitee shall provide the Indemnitor twenty (20) calendar days to decide
whether to defend such liability or claim.  During such period, the Indemnitee
shall take all necessary steps to protect the interests of itself and the
Indemnitor, including the filing of any necessary responsive pleadings, the
seeking of emergency relief or other action necessary to maintain the status
quo, subject to reimbursement from the Indemnitor of its expenses in doing so.
The Indemnitor shall (with, if necessary, reservation of rights) defend such
action or proceeding at its expense, using counsel selected by the insurance
company insuring against any such claim and undertaking to defend such claim, or
by other counsel selected by it and approved by the Indemnitee, which approval
shall not be unreasonably withheld or delayed.  The Indemnitor shall keep the
Indemnitee fully apprised at all times of the status of the defense and shall
consult with the Indemnitee prior to the settlement of any indemnified matter. 
Idemnitee agrees to use reasonable efforts to cooperate with Indemnitor in
connection with its defense of indemnifiable claims.  In the event the
Indemnitee has a claim or claims against any third party growing out of or
connected with the indemnified matter, then upon receipt of indemnification, the
Indemnitee shall fully assign to the Indemnitor the entire claim or claims to
the extent of the indemnification actually paid by the Indemnitor and the



Indemnitor shall thereupon be subrogated with respect to such claim or claims of
the Indemnitee.

14.    MISCELLANEOUS.

14.1   POWERS AND RIGHTS NOT WAIVED; REMEDIES CUMULATIVE.  No delay or failure
on the part of Abbott in the exercise of any power or right shall operate as a
waiver thereof; nor shall any single or partial exercise of the same preclude
any other or further exercise thereof, or the exercise of any other power or
right, and the rights and remedies of Abbott are cumulative to, and are not
exclusive of, any rights or remedies Abbott would otherwise have.

14.2   NOTICE.  Except as otherwise expressly provided herein, any notice,
consent or document required or permitted hereunder shall be given in writing
and it or any certificates or other documents delivered hereunder shall be
deemed effectively given or delivered (as the case may be) upon personal
delivery (professional courier permissible) or when mailed by receipted United
States certified mail delivery, or five (5) business days after deposit in the
United States mail.  Such certificates, documents or notice may be personally
delivered to an authorized representative of the Company or Abbott (as the case
may be) at any address where such authorized representative is present and
otherwise shall be sent to the following address:

If to the Company:  Micro Therapeutics, Inc.
       1062 Calle Negocio #F
       San Clemente, CA 92673
       Attention:  George Wallace
       Telecopy No.:  (949) 361-0210

With a copy to:     Stradling Yocca Carlson & Rauth
       660 Newport Center Drive, Suite 1600
       Newport Beach, CA 92660
       Attention:  Bruce Feuchter
       Telecopy No.:  (949) 725-4100

If to Abbott:  Abbott Laboratories
       D-960, AP30
       200 Abbott Park Road
       Abbott Park, IL 60064-3500
       Attention:  President, Hospital Products Division
       Telecopy No.:  (847) 937-0805

With a copy to:     Abbott Laboratories 
       Legal Division
       D-322, AP6D
       100 Abbott Park Road
       Abbott Park, IL  60064-3500
       Attn:  Divisional Vice President, 



       Domestic Legal Operations
       Telecopy No.:  (847) 938-1206

14.3   SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon and inure
to the benefit of the Company and its successors and assigns and shall be
binding upon and inure to the benefit of Abbott and its successors and assigns;
provided, however, that neither the Company nor Abbott shall assign this
Agreement or any of its rights, duties or obligations hereunder without the
prior written consent of the other party which consent shall not be unreasonably
withheld, and provided further, Abbott may assign its rights hereunder after
July31, 1999 without the Company's prior written consent.

14.4   SURVIVAL OF COVENANTS AND REPRESENTATIONS.  All covenants,
representations and warranties made by the Company herein and in any
certificates delivered pursuant hereto, whether or not in connection with the
Closing Date, shall survive the closing and the delivery of this Agreement and
the Note.

14.5   SEVERABILITY.  Should any part of this Agreement for any reason be
declared invalid or unenforceable, such decision shall not affect the validity
or enforceability of any remaining portion, which remaining portion shall remain
in force and effect as if this Agreement had been executed with the invalid or
unenforceable portion thereof eliminated and it is hereby declared the intention
of the parties hereto that they would have executed the remaining portion of
this Agreement without including therein any such part, parts or portion which
may, for any reason, be hereafter declared invalid or unenforceable.

14.6   WAIVER OF CONDITIONS.  If on the Closing Date, either party hereto fails
to fulfill each of the conditions specified in Section 8 hereof, the other party
may thereupon elect to be relieved of all further obligations under this
Agreement.  Without limiting the foregoing, if the conditions specified in
Section 8 have not been fulfilled, the other party may waive compliance by such
party with any such condition to such extent as such party may in its sole
discretion determine.  Nothing in this Section 14.6 shall operate to relieve
either party of any obligations hereunder or to waive any of the other party's
rights against such party.

14.7   COUNTERPARTS.  This Agreement may be executed in one or more
counterparts, each of which shall be deemed an original, but all of which shall
constitute one and the same instrument.

14.8   GOVERNING LAW.  This Agreement and the Note issued and sold hereunder
shall be governed by and construed in accordance with Delaware law, without
regard to the conflict of laws provisions thereof.

14.9   CAPTIONS.  The descriptive headings of the various sections or parts of
this Agreement are for convenience only and shall not affect the meaning or
construction of any of the provisions hereof.

14.10  DISPUTE RESOLUTION.  Disputes shall be resolved as provided in Exhibit F
hereto.



IN WITNESS WHEREOF, the Company and Abbott by their duly authorized officers,
have each caused this Agreement to be executed as of the date first written
above.

                                   ABBOTT:  
                                   ABBOTT LABORATORIES   

                                   By:          
                                   Title:              


                                   COMPANY:  
                                   MICRO THERAPEUTICS, INC.    


                                   By:          
                                   Title:              


EXHIBIT A
FORM OF 5% CONVERTIBLE SUBORDINATED NOTE
MICRO THERAPEUTICS, INC.
5% Convertible Subordinated Note, due August 19, 2003
       
       
No. CSN-2                                            San Clemente, California
$5,000,000                                                    August 19, 1998
       
Micro Therapeutics, Inc., a corporation duly organized and existing under the
laws of the State of Delaware (the "Company"), for value received, hereby
promises to pay to Abbott Laboratories, an Illinois corporation ("Abbott"), or
its registered assigns (the "Holder"), the principal sum of Five Million Dollars
($5,000,000) on August 19, 2003 (the "Maturity"), and to pay interest (i) on the
unpaid principal balance thereof from the date of this Note at the rate of five
percent (5%) per annum, payable quarterly in arrears on January 31, April 30,
July 31 and October 31 of each year (each, an "Interest Payment Date")
(commencing October 31, 1998) until such unpaid balance shall become due and
payable (whether at Maturity, or by declaration, acceleration or otherwise) and
(ii) on each overdue payment of principal or any overdue payment of interest, at
a rate per annum equal to ten percent (10%).

The interest and principal payments payable with respect to this Note, on any
Interest Payment Date, at Maturity or by declaration, acceleration or otherwise,
pursuant to the Note Agreement (as defined herein), shall be paid to Abbott in
such coin or currency of the United States of America as at the time of payment
is legal tender for payment of public and private debts.  Such interest and
principal payments shall be made to Abbott in accordance with the provisions of
the Note Agreement.

This Note is the sole issue of a 5% Convertible Subordinated Note due August 19,
2003 of the Company issued in an aggregate principal amount of Five Million
Dollars ($5,000,000) 



pursuant to the Convertible Subordinated Note Agreement, dated August 12, 
1998, by and between the Company and Abbott (the "Note Agreement").  The 
Holder of this Note is entitled to the benefits of the Note Agreement, and 
may enforce the Note Agreement and exercise the remedies provided for thereby 
or otherwise available in respect thereof.

This Note may be transferred or assigned by Abbott as provided in the Note 
Agreement.  As provided in the Note Agreement, upon surrender of this Note 
for registration of transfer, duly endorsed, or accompanied by a written 
instrument of transfer duly executed by Abbott or Abbott's attorney duly 
authorized in writing, a new Note for a like aggregate principal amount and 
otherwise of similar tenor, will be issued to, and registered in the name of, 
the transferee. Prior to due presentment for registration of transfer, the 
Company may treat the person in whose name this Note is registered as the 
Holder and owner hereof for the purpose of receiving payments and for all 
other purposes, and the Company shall not be affected by any notice to the 
contrary.

In the case of an Event of Default (as defined in the Note Agreement), the
principal of this Note in certain circumstances shall become due and payable and
in other circumstances may be declared and become due and payable in the manner
and with the effect provided in the Note Agreement.

This Note is subject to conversion into Common Stock pursuant to the terms and
conditions of the Note Agreement and conversion shall be evidenced by a Notice
of Conversion as attached hereto.  This Note is not subject to prepayment or
redemption by the Company prior to its expressed Maturity.

The indebtedness evidenced by this Note is, to the extent provided in the Note
Agreement, subordinate and subject in right of payment to the prior payment in
full of all Senior Indebtedness (as defined in the Note Agreement), and this
Note is issued subject to the provisions of the Note Agreement with respect
thereto.  Each Holder of this Note, by accepting the same, agrees to and shall
be bound by such provisions.
No reference herein to the Note Agreement and no provision of this Note or of
the Note Agreement shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of (and premium, if any) and
interest on this Note at the times, place and rate, and in the coin or currency,
herein prescribed or to convert this Note as provided in the Note Agreement.
terms used in this Note which are defined in the Note Agreement shall have the
meanings assigned to them in the Note Agreement.

This Note and the Note Agreement are governed by and construed in accordance
with the law of the State of Delaware.

IN WITNESS WHEREOF, the Company caused this instrument to be duly executed under
its corporate seal.

Dated:  August 19, 1998




                                   MICRO THERAPEUTICS, INC.  

                                   By:
                                   Its:

ATTEST:

By:

Its:


NOTICE OF CONVERSION

The undersigned Holder of this Note hereby irrevocably exercises the option to
convert the principal amount of this Note, into shares of Common Stock in
accordance with the terms of the Note Agreement, and directs that the shares
issuable and deliverable upon such conversion, together with any check in
payment for fractional shares and any Note representing any unconverted
principal amount hereof, be issued and delivered to the undersigned unless a
different name has been indicated below.  If shares or the Note are to be issued
in the name of a person other than the undersigned, the undersigned will pay all
transfer taxes payable with respect thereto.  Any amount required to be paid by
the undersigned on account of interest accompanies this Note.

 
Social Security or other 
Taxpayer Identification Number
                                          
                                          
Dated: __________________
       
          
Signature
       
If shares or the Note are to be registered in the name of a Person other than
the Holder, please print such Person's name and address:

       
Name
                                          
       
Street Address
       
City, State and Zip Code
                                          
                                          
                                          


                                     EXHIBIT E
                               DISCLOSURE SCHEDULES 
                                        OF 
                      MICRO THERAPEUTICS, INC. (THE "COMPANY")
                                         TO
                      CONVERTIBLE SUBORDINATED NOTE AGREEMENT
                                   BY AND BETWEEN
                                 ABBOTT CORPORATION
                                        AND
                                    THE COMPANY
                            DATED AS OF AUGUST 12, 1998
                                    SCHEDULE 3.1
                                    SUBSIDIARIES
                                          
     The Company has no subsidiaries.
                                    SCHEDULE 3.2
                                     AUTHORITY
                                          
     The Company is duly  licensed and qualified to do business in each
     jurisdiction in which its business is transacted. The Company is currently
     responding to inquiries made by the State of Illinois as part of the
     registration process in that state.
                                    SCHEDULE 3.4
                                 EQUITY INVESTMENTS

      (i) The Company owns 1,002 shares of Cardiovascular Dynamics, Inc. common
          stock, which is an immaterial percentage of its currently outstanding
          common shares.
     (ii) The Company owns 850,000 shares of Genyx Medical, Inc. common stock
          which is approximately 27% of its currently outstanding common shares.
    (iii) The Company owns 2,000,000 shares of Enteric Medical Technologies,
          Inc. common stock which is approximately 46.5% of its currently
          outstanding common shares.
For all the investments disclosed above, the Company's cost basis, and the value
     at which such investments are carried on the Company's balance sheet in
     conformity with generally accepted principles, are not material.
                                    SCHEDULE 3.8
                                  BUSINESS CHANGES

     (a)  None.
     (b)  (i)   As of July 31, 1998, under the Company's 1993 and 1996 
Restricted Stock Purchase, Incentive Stock Option and Non-qualified Stock 
Option Plans (collectively, the "Plans"), there are currently outstanding 
incentive and non-qualified stock options to purchase a total of 1,140,769 
shares of the Company's common stock, of which 294,452 shares are vested.  In 
addition, 330,873 shares of common stock are available for issuance upon 
exercise of options to be granted under the Plans.




          (ii)  The Company issues shares of its common stock from time to 
time under its Employee Stock Purchase Plan as adopted under Section 423 of 
the Internal Revenue Code.  The last issue date was June 30, 1998 at which 
time 13,495 shares were issued.
          (iii) The Company has made a Restricted Stock commitment for 2,000 
shares to a consultant pending completion of certain requirements as of 
August 31, 1998.
     (c)  (i)  The Company intends to make expenditures to various departments
and individuals within the University of California, Los Angeles, School of
Medicine ("UCLA"), averaging approximately $30,000 per month, through December
31, 1998.  In addition, the Company intends to make an unrestricted gift to the
Department of Radiological Sciences at UCLA, up to a maximum of $150,000, in
support of new laboratory facilities. Of such amount, $50,000 has been remitted
through July 31, 1998.
          (ii) On July 31, 1998, a signed copy of a building lease was delivered
by the Company to the building's landlord, New Goodyear, LTD.  Beginning on
October 1, 1998 and expiring September 30, 2003, the five year, triple net lease
for approximately 43,538 square feet has a monthly rental of $38,313.14 plus
common area charges, subject to cost of living increases.  Additionally, there
are two options to extend the lease term for three years at an increased rent
based on a cost of living index.  The facility being leased is located in
Irvine, CA and the Company intends to relocate its operations from its current
facilities in San Clemente, CA to Irvine during the fourth quarter of 1998. 
Under the terms of the lease, the landlord has agreed to provide $150,000 of
tenant improvements. The Company expects the total cost of such tenant
improvements to be greater.
          (iii)     The Company has entered into a consulting agreement with
Anderson Associates to provide architectural services related to the new
building.  Under the terms of the Consulting Agreement, fees for such services
are not to exceed $61,000.
          (iv) The Company has entered into a consulting agreement with
Healthcare Documentation & Development, Inc. ("HDD")  The consultant is to
provide design, development and production of training modules for an estimated
fee of $108,000, to be paid in three equal installments of $36,000.
     (d)  In conjunction with the signing of the building lease for the facility
in Irvine, CA (refer to Disclosure Schedule 3.8 (c)), the Company was required
to make two payments, each in the amount of $38,313.14, representing a security
deposit and the October 1998 rent.
     (e)  None.
     (f)  None.
     (g)  The Company is considering entering into a $1 million bank credit
facility, the proceeds of which would be used primarily for tenant improvements
for the new facility (see disclosure on Disclosure Schedule 3.8 (c) ) and other
potential future capital expenditures.
     (h)  None.
     (i)  See disclosure on Disclosure Schedule 3.8 (c) and Disclosure Schedule
3.8(k). 
     (j)  See disclosure on Disclosure Schedule 3.8 (c) and Disclosure Schedule
3.8(k).





     (k)  On July 8, 1998, the Company entered into a license agreement with
Enteric Medical Technologies, Inc. ("Enteric"), pursuant to which the Company
has granted an exclusive, worldwide license to Enteric to utilize certain of the
Company's patent rights and rights under certain of the Company's patent
applications relating to the design, manufacture and method of use of
proprietary biomaterials and micro catheters, to commercially develop products
utilizing such rights in connection with applications for gastrointestinal tract
bulking, embolization or implantion procedures.  The included applications for
gastrointestinal tract bulking, embolization or implantation procedures shall
mean procedures performed by access using endoscopic, open surgical,
laparoscopic surgery, percutaneous or colonscopic as well as other developed
procedures, but does not include access through the vascular, gynocological or
urological systems all of which are excluded from the "Licensed Field," as
defined in the license agreement. In connection with such license agreement, the
Company acquired 2 million shares of Enteric common stock.
     (m)  None.
     (n)  None.
     (o)  None

                                    SCHEDULE 3.9
                                    INDEBTEDNESS

     On November 17, 1997, the Company entered into a Convertible Subordinated
Note Agreement with Guidant Corporation, under which the Company borrowed $5
million.  The principal amount of the note is due in five years, and is
convertible, at any time, at the option of the note holder into shares of the
Company's Common Stock at a conversion price of $10.25 per share.  The note
bears interest at 5% per annum, which the Company has determined is lower that
interest rates typically associated with similar debt instruments.  Accordingly,
as required by generally accepted accounting principals, the Company recorded a
discount on the note of $974,328, resulting in an imputed interest over the term
of the note of 10%.  Such discount had an unamortized balance of $861,149 at
July 31, 1998.  Interest payments are due quarterly in arrears and commenced
January 31, 1998.
     On May 28, 1998, the Company received $2.5 million from Guidant Corporation
pursuant to the achievement by the Company of a specified milestone defined in
the Convertible Subordinated Note Agreement.  Of  this amount, $2 million is in
the form of debt, bearing interest of 8% payable quarterly, with a maturity date
of October 31, 2002.  The remaining $500,000 was used to purchase 47,637 shares
of the Company's common stock.
                                   SCHEDULE 3.15
                                 PROPRIETARY RIGHTS

     (a)  (i)  Attached hereto as Schedule 3.15(a)(i) is a list of all of the
Company's patents, patent applications, trademarks, trade names, service marks
and copyrights owned or used by the Company or in which it has any rights or
licenses, except for software used by the Company and generally available on the
commercial





market, and all applications therefor.
          (ii) The Company has entered into an Employee Confidential Information
Agreement with each of its employees, a form of which is attached hereto as
Schedule 3.15(a)(ii).
          (iii)     Pursuant to the terms of an Agreement dated June 21, 1993,
by and between the Company and Andrew Cragg, M.D., a consultant of the Company,
the Company has acquired the rights, which include patent rights, to certain
technology relating to Valved Tip Angiographic Catheters and Thrombolytic Brush
Catheters.
          (iv) Pursuant to the terms of the following Consulting Agreements, the
Consultant (as defined therein), has agreed to assign to the Company all right,
title and interest that the Consultant may have or acquire (a) in and to any
Proprietary Information (as defined therein), or (b) if not defined therein, in
and to any ideas inventions, improvements, suggestions or copyrightable
materials relating to the Consultant's work under the applicable agreement:
(1)            Consulting Agreement dated November 1, 1994 and expiring June 1,
               2001, between the Company and Barry Katzen, M.D.
(2)            Consulting Agreement dated August 5, 1998 and expiring August 4,
               1999 between the Company and Randy Werneth
(3)            Consulting Agreement dated April 30, 1996 and expiring May 1,
               1999, between the Company and Bart Dolmatch, M.D.
(4)            Consulting Agreement dated August 1, 1998 and expiring July 31,
               2001 between the Company and Scott Goodwin, M.D.
(5)            Consulting Agreement dated June 2, 1998 and expiring June 2,
               1999, between the Company and Mike Jones
(6)            Consulting Agreement dated September 1, 1997 and expiring August
               31, 1998, between the Company and Andrew Cragg, M.D.
(7)            Consulting Agreement dated January 1, 1998 and expiring December
               31, 1999, between the Company and  Andrew Molyneux, M.D.
(8)            Consulting Agreement dated October 9, 1996 and expiring October
               8, 1999, between the Company and Mark Mewissen, M.D.
(9)            Consulting Agreement dated January 1, 1998 and expiring December
               31, 1999, between the Company and John Perl, II, M.D.
(10)           Consulting Agreement dated January 7, 1998 and expiring August
               31, 2000, between the Company and Flavio Castaneda, M.D.
(11)           Consulting Agreement dated July 7, 1998 and expiring July 6,
               1999, between the Company and Richard Greff
(12)           Consulting Agreement dated July 20, 1998, between the Company and
               Judy Hoff /Healthcare Documentation & Development
(13)           Consulting Agreement dated March 1, 1998 and expiring February
               28, 2000, between the Company and John Chaloupka, M.D.
(14)           Consulting Agreement dated January 1, 1997 and expiring September
               30, 1999, between the Company and Rodney J. Lane, M.D.
(15)           Consulting Agreement dated January 1, 1998 and expiring January
               1, 2000, between the Company and Mark Saker, M.D.





(16)           Consulting Agreement dated April 1, 1998 and expiring March 31,
               2000, between the Company and Alejandro Berenstein, M.D.
(17)           Consulting Agreement dated December 1, 1997 and expiring November
               30, 1998, between the Company and Joe Engleson
(18)           Consulting Agreement dated June 5, 1998 and expiring September 2,
               1998, between the Company and Peter Anthony/Healthcare
               Documentation and Development
(19)           Consulting Agreement dated September 1, 1996 and expiring August
               31, 1999, between the Company and Don F. Schomer, M.D.
(20)           Consulting Agreement dated February 5, 1998 and expiring March 1,
               2000, between the Company and Charles Semba, M.D.
(21)           Consulting Agreement dated September 1, 1996 and expiring August
               31, 1998, between the Company and Tony Smith, M.D.
(22)           Consulting Agreement dated July 1, 1996 and expiring June 30,
               1999, between the Company and Sidney Wallace, M.D.     
                                   SCHEDULE 3.19
                            EMPLOYEE PLANS AND RELATIONS

     (a)  (i)   Employment Agreement dated December 1, 1997, between the Company
and Harold A. Hurwitz, the Company's Chief Financial Officer, providing for a
severance payment of $150,000 in the event there occurs a change of control of
the Company prior to December 1, 1998 and his employment is terminated within
six months of such change in control.
          (ii) Employment Agreement dated March 19, 1998, between the Company
and Earl H. Slee, the Company's Vice President, Research and Development,
providing for a severance payment of $150,000 in the event there occurs a change
of control of the Company prior to April 6, 1999 and his employment is
terminated as a result of such change in control.
     (b)  None.
MICRO THERAPEUTICS, INC.
 INTELLECTUAL PROPERTY


ATTORNEYS

) Joseph F. Breimayer                      Infusion
      Breimayer Law Office                 Advanced Infusion
      1221 Nicollet Mall, Suite 206
      Minneapolis, MN  55403
      (612) 338-1279  Phone
      (612) 338-0910  Fax





)  Gerald Swiss                            Micro Catheters/Access 
       Burns, Doane, Swecker & Mathis      Vascular Embolization
       3000 Sand Hill Road
       Menlo Park, CA  94025
       (650) 854-7400  Phone
       (650) 854-8275  Fax


C)   K. David Crockett, Esq.               Stents
       Crockett & Fish                     Coatings
       4093 Tropico Way
       Los Angeles, CA  90065
       (213) 227-8519  Phone
  (213) 399-1617 Phone
  (213) 227-1089  Fax


D)   Curtis L. Harrington                  Trademarks
     Curtis L. Harrington & Associates     Tradenames
     6300 State University Dr., Ste. 250   Copyrights
     Long Beach, CA  90815
     (310) 594-9784  Phone
     (714) 374-9549  Phone
     (310) 594-4414  Fax
                                Joseph F. Breimayer
                               Breimayer Law Offices


1.  Infusion
2.  Advanced Infusion 


More specifically, this intellectual property includes:

1.  Valved Tip Angiographic Catheters
     Patent #:                 5,085,635
     Issued:                   February 4, 1992



2.  Thrombectomy Method and Apparatus
     Patent #:                 5,370,653
     Issued:                   December 6, 1994              File No. 9130.01;

     9130.01CAN;




                                                            File No. 9130.01EPO;
                                                                      910.01JAP
3.  Infusion Device with Preformed Shape (Coiled Wire) 
     Patent #:           5,554,114
     Issued:             September 10, 1996                  File  No. 9135.08;
9135.08PCT;
9135.08EPO; 9135.08JAP;
9135.08CAN


4.  Miniaturized Brush with Hollow Lumen
     Brush Body                                              File No. 9135.20;
                                                                   9135.20PCT;
     Patent #:           5,681,335
     Issued:             October 28, 1997


5.    Longitudinally Extendable Infusion Device
     Patent #:           5,624,396
     Issued:             April 29, 1997                      File No. 9135.23;
9135.23PCT;

9135.23CAN; 9135.23EPO;                                      9135.23JAP




                                Joseph F. Breimayer
                               Breimayer Law Offices
                                    (Continued)



6.    Patents Pending:

a)  Infusion Guidewire Having Fixed 
     Core and Flexible Radiopaque Marker 
     (Straight Wire)                                    File No. 9135.25;
                                                       9135.25PCT
                                                            9135.36CIP;
                                                            9135.25CAN;





                                                            9135.25EPO;
                                                            9135.25JAP
b)  Infusion Device for Distributing Infusate
    Along an Elongated Infusion Segment               File No. 9135.26;
9135.26PCT

        c)   Power Lysis of Thrombus in Blood Vessel  File No. 9135.34;
9135.34EPO;
                                                      9135.34CAN

7.  Patents In Progress


     a) Miniaturized Brush with Hollow Lumen 
    Brush Body                                        File No. 9135.39


8.  Invention Disclosures


         a)  Rotatable Catheter Attachment Clip       File No.  9135.40
            System for Connection to Hand
               Held Moor Drive Unit

         b)  Dynamic Seal to Protect Hand Held Motor  File No.  9135.41
               Drive from Patient Bleedback


9.  Infringement issue

     a)  Genesis Medical                              File No. 9135.42
                              K. David Crockett, Esq.
                                  Crockett & Fish


1. Stents 
2. Coatings


More specifically, this intellectual property includes:

1. Stent Construction of Rolled Configuration
     Patent #:           5,306,294
     Issued:             April 26, 1994          Exclusive License for Head and





Neck

2. Method and Apparatus for Applying Vascular Grafts
     Patent #:           5,366,473
     Issued:             November 22, 1994
     Exclusive License for Head and Neck

3. Stent Assembly with Sensor
     Patent #:           5,411,551
     Issued:             May 2, 1995
     Exclusive License for Head and Neck

4. Self Expanding Vascular Endoprosthesis for Aneurysms
     Patent #:           5,405,379
     Issued:             April 11, 1995
     Exclusive License for Head and Neck

5.   Lubricious Hydrophilic Composite Coated on Substrates
     Patent #:           5,001,009
     Issued:             March, 1991
     Non-exclusive license - Micro Catheters

6.   Anti-thrombogenic, Anti-microbial Compositions Containing Heparin
     Patent #:           5,069,899
     Issued:             December 3, 1991
     Non-exclusive license - Micro Catheters

7.   Lubricious Hydrophilic Coating, Resistant to Wet Abrasion
     Patent #:           5,331,027
     Issued:             July 19, 1994
     Non-exclusive license - Micro Catheters
K. David Crockett, Esq.
Crockett & Fish
(Continued - Page Two)


8.  PATENTS PENDING:

     a) Intracranial Stent and Method of Use      File No. 212/037;
     212/046CIP
                                                  212/037PCT

     b)   Self Anchoring Coil for Vascular
            Occulsion                             File No.




212/059/INACTIVE

     c)   Hoop Stent                              File No. 212/060

     d)   Method for Intracranial Vascular Embolotherapy
             Using Self Anchoring Coils           File No. 212/068

     e)  Expandable Stent Apparatus and Method    File No. 212/070

     f)   Wire Frame Partial Flow Obstruction Device
              for Aneurysm Treatment              File No. 212/071


9.  PATENTS IN PROCESS:

     a)  Hoop Stent                               File No. 212/060PCT

     b) Wire Releasable Self-Expanding 
     Neurovascular Stent                          File No. 212/098


     c) Control Handle for Self Expanding Stent   File No. 212/106

     d)  Porous Rolled Sheet Stents               File No. 212/109

     e)  Coated Aneurysm Stent                    File No. 212/110/INACTIVE

      f)  Wave Form Perforation Pattern           File No. 212/117

      g)  Sequential Wire Pulls for Control Handle
            of Self-Expanding Neurovascular
            Stent Catheter                        File No. 212/122

      h)  Thin Film Sheets of Sputter Deposited
            NiTi for use in Medical Devices       File No. 212/124

      i)  Multi-Lumen Delivery                    File No. 212/125

                              K. David Crockett, Esq.
                                  Crockett & Fish
                              (Continued - Page Three)


9.  PATENTS IN PROCESS:





      j)  Expandable Stent Apparatus and Method        File No. 212/070PCT

      k)  Wire Frame Partial Flow Obstruction Device   File No. 212/071PCT
     for Aneurysm Treatment

      l)  Dynamic Coatings for Endovascular Devices    File No. 212/128

      m)  Dual Pull Wire Proximal Handle               File No. 212/129
     Curtis L. Harrington 
  Curtis L. Harrington & Associates



1.  Trademarks
2.  Tradenames
3.  Copyrights


More specifically, this intellectual property includes:

1.  Willis                                             File No. MITH-301
     TM Registration No. 1,936,938

2.  ProStream                                          File No. MITH-
     TM Registration No. 2,035,778

3.  Micromewi                                          File No. MITH-303


4.  Trademarks Pending:

     a) Patency                                   Inactive

     b)  Easy Rider                               File No. MITH-304

     c)  Embolyx                                  File No. MITH-





305/INACTIVE

     d)  Mewi-5                                   File No. MITHj-306



Gerald Swiss
       Burns, Doane, Swecker & Mathis


MTI MATTERS

1.  Micro Catheters/Access
2.  Vascular Embolization



More specifically, this intellectual property included:


1.  Novel Compositions for Use in Embolizing 
     Blood Vessels                                          File No. 18413-
002; 18413-021PCT
    Patent #:   5,667,767                                   18413-031CIP;
     18413-052EPO
     Issued:           September 16, 1997
     18413-053CAN; 18413-054JAP

2.  Cellulose Diacetate Composition for Use in Embolizing   File No. 18413
- -003; 18413-020PCT;
     Blood Vessels                                          18413-055EPO;
18413-056CAN;
     Patent #:  5,580,568                                   18413-057JAP;
18413-058(PCT/US)
     Issued:           December 3, 1996

3.  Method for Embolizing Blood Vessels
     Patent #:         5,702,361
     Issued:           December 30, 1997                    File No. 18413-
009; 18413-025PCT

4.  Novel Embolizing Compositions
     Patent #:         5,695,480
     Issued:           December 9, 1997                     File No. 18413-017





5.  PATENTS PENDING:

     a)  Methods for Embolizing Blood Vessels
     (Embolic with Lattice Support)                18413-048DIV

     b)  Novel Compositions for Use in Embolizing 
     Blood Vessels (Other Polymers)       File No. 18413-010; 18413-
     030/CIP
                                          18413-035PCT; 18413-078DIV

c)  Contoured Syringe and Novel Luer Hub and
     Methods for Embolizing Blood Vessels         File No. 18413-016
Gerald Swiss
Burns, Doane, Swecker & Mathis
(Continued)



5.  PATENTS PENDING (Cont'd):


d)  Novel Embolizing Compositions 
     (Radiopaque Particle Size and Kit)           18413-018PCT;  18413-059EPO
     18413-060CAN; 18413-061JAP

e)  Novel Methods for Embolizing                  File No. 18413-019;
18413-037PCT

f) Use of Radioactive Embolizing Compositions     File No. 18413-023

g)  Ethyl Lactate Composition Comprising a 
     Biocompatible Polymer and a 
     Contrast Agent                               File No. 18413-038

h)  Gynecologic Endovascular Embolotherapy        File No. 18413-046
     Methods





i)  Method and Apparatus for 
     Intravascular Embolization                   File No. 18413-070;
18413-071PCT

j)  Catheter for Combined Injection of
      Liquid Embolic and Embolic
      Solidification Agent                        File No. 18413-073

k)   Single Segment Microcatheter
     (Transferred from Crockett)                  File No.  18413-083;
18413-114CIP


l)  Balloon Catheter for Occluding
     Aneurysms or Branch Vessels
     (Transferred from Breimayer)                  File No.  18413-084;
18413-085CAN; 18413-086EPO;
18413-092JAP
m)  Microcatheter
     (Transferred from Knobbe)                    File No.  18413-098;
18413-107PCT                                      18413-119EPO; 18413-
120CAN;

n)  Flow Directed Cerebral Vascular Catheter      File No. 18413-110

Gerald Swiss
Burns, Doane, Swecker & Mathis
(Continued)


5.  PATENTS PENDING (Cont'd):



o)  Novel Methods for Embolizing Vascular
     Sites with an Embolizing Composition
     Comprising Dimethysulfoxide                  File No. 18413-131
     (DIV of 018413-019)





6.  PATENTS IN PROCESS:
     a)  Drug Carrier Site Specific Treatment     File No. 18413-011/Inactive

     b)  Liquid Embolic Composition to Necrose 
     Blood Vessels                                File No. 18413-033/Inactive

     c)  Embolic Compositions for Use in 
     Plastic Surgery                              File No. 18413-039

     d)  Treatment of Ruptured Spinal Disks by 
     Use of an Embolic                            File No. 18413-040

     e)   Protection of Aneurysm Neck During
     Embolic Injection                            File No. 18413-041

     f)  Nidus Catheter for Forming "Pearl"
     Embolic Agent                                File No. 18413-042

     g)  Containment of Liquid Embolic            File No. 18413-043

     h)  Chemical Detachment of Embolic           File No. 18413-045

     i) Novel Embolizing Compositions             File No. 18413-104CHI

     j)  Method to Treat Aneurysms Neck to 
     Prevent Aneurysm Regrowth                    File No. 18413-067

k)   Novel Devices Which Improve The Venous
     Blood Return or Drainage                     File No. 18413-069

Gerald Swiss
Burns, Doane, Swecker & Mathis





                                    (Continued)




6.  PATENTS IN PROCESS (CONT'D):

        l)   Invention Disclosures (Ttransferred from 
     Breimayer's office) 

     Vascular Occlusion Catheter                  File No. 18413-087 

            Balloon Catheters                     File No. 18413-088

            Devices for Improved Venous
     Blood Return
                                                  File No. 18413-089


                m)  Infringement study U.S. Patent No. 5,358,493
                     (Transferred from Breimayer's office / BDSM
                      to provide original)        File Nos. 18413-90; 18413-091

     n)  Study U.S. Patent 4,739,768 and 5,336,205
                     (Transferred from Breimayer's office)    File Nos. 18413-
93; 18413-094
 
      o)  Echogenic Agent for Implantable Composition  File No.       18413-096


     p)  Radiation Delivery System with Unique Over
           the Wire                                         File No. 18413-097

     q)  Catheters and Syringes to Form Abrupt
           Interface Between Liquid Embolic
           and Barrier Fluid                                File No. 18413-099

     r)   Rapid Exchange Microcatheter & Tip
            Deflecting Microcatheter                        File No. 18413-100

     s)    Patent Study Re:  Fas Tracker 10 by Target       File No. 18413-101





     t)    Spring-Loaded Syringe Assembly for Repetitive,
           Low Volume, High-Pressure Injections            File No. 18413-103


Gerald Swiss
Burns, Doane, Swecker & Mathis
(Continued)



6.  PATENTS IN PROCESS (CONT'D):

     u)  Infringement Study of 4,739,768
         (Transferred from Breimayer's office)             File No. 18413-108


     v)   Vascular Vessel Dilation Catheter                File No. 18413-109


     w)  Endovascular Aneurysm Clip and Method             File No. 18413-111


     x)  DMSO Compatible Microcatheter                     File No. 18413-112
/INACTIVE

     y)  Single Segment Microcatheter                      File No. 18413-128PCT

z)   Embolization Particle Methods of
     Manufacture                                           File No. 18413-127


     aa)  Microcatheter                                    File No. 18413-130
            (CIP of 018413-098)

bb)  Transluminal Solidification of Embolyx
     for Aneurysm Embolization                             File No. 18413-138








Gerald Swiss
Burns, Doane, Swecker & Mathis
(Continued)




7.  TRADEMARKS PENDING:


a)   EMBOLYX                                   File No. 18413-064

b)   LES                                       File No. 18413-065

c)   FLOW RIDER                                File No. 18413-076





8.  TRADEMARKS IN PROCESS:

a)   Even Flow                                 File No. 18413-095/INACTIVE




b)   Castaneda Over-the-Wire                   File No. 18413-125

c)   Focused Infusion Catheters                File No. 18413-126

d)   Silver Streak                             File No. 18413-139

e)   Equinox                                   File No. 18413-

Gerald Swiss
Burns, Doane, Swecker & Mathis



1.  Non-Vascular


Patents Pending:


a)  Methods for Treating Urinary Incontinence     File No. 18413-006;
18413-047/DIV.;
                                                  18413-081PCT

b)  Methods for Sterilizing Male Mammals          File No. 18413-007;
18413-034PCT;
                                                  18413-029/CIP

c)  Methods for Sterilizing Female Mammals        File No. 18413-014;
18413-036PCT;
                                                  18413-027CIP

d)  Method for Treating Urinary Reflux            File No. 18413-026;
18413-082PCT

e)  Gynecologic Embolotherapy Methods             File No. 032016-005



MICRO THERAPEUTICS, INC.

EMPLOYEE CONFIDENTIAL INFORMATION AGREEMENT





     In consideration and as a condition of my employment, or continued 
employment, by MICRO THERAPEUTICS, INC. and/or by companies which it owns, 
controls, or is affiliated with, or their successors in business (hereafter 
referred to as "the Company), and the compensation paid therefore:

1.   CONFIDENTIALITY

     I agree to keep confidential, except as the Company may otherwise consent
in writing, and not to disclose or make any use of except for the benefit of the
Company, at any time, either during or subsequent to my employment, any trade
secrets, confidential information, knowledge, data or other information of the
Company relating to products, processes, know-how, designs, formulas, test data,
customer lists, business plans, marketing plans and strategies, pricing
strategies or other subject matter pertaining to any business of the Company or
any of its clients, customers, consultants, licensees or affiliates, which I may
produce, obtain or otherwise acquire during the course of my employment, except
as herein provided.  I further agree not to deliver, reproduce or in any way
allow any such trade secrets, confidential information, knowledge, data or other
information, or any documentation relating thereto, to be delivered or used by
any third parties without specific direction or consent of a duly authorized
representative of the Company.

2.   CONFLICTING EMPLOYMENT/RETURN OF CONFIDENTIAL MATERIAL
     I agree that during my employment with the Company, I will not engage in
any other employment, occupation, consulting or other activity relating to the
business in which the Company is now or may hereafter become engaged or which
would otherwise conflict with my obligations to the Company.  In the event of my
termination of employment with the Company for any reason whatsoever, I agree to
promptly surrender and deliver to the Company all records, materials, equipment,
drawings, documents and data of any nature pertaining to any invention, trade
secret or confidential information of the Company or to my employment, and I
will not take with me any description containing or pertaining to any
confidential information, knowledge or data of the Company which I may produce
or obtain during the course of my employment.  In the event of the termination
of my employment for any reason whatsoever, I agree to sign and deliver the
"Termination Certificate" attached hereto as Exhibit A.

3.   NON SOLICITATION

     I agree that during my employment and for the two year period following my
employment I will not solicit or induce any employee or consultant of the
Company to quit their employment, cease doing business with the Company or
accept employment with any entity that I am then involved with, unless I am





specifically authorized to do so by the Company. In addition, during my 
employment and for the two year period following my employment I will not 
solicit or induce any customer of the Company to cease doing business with 
the Company.

4.   ASSIGNMENT OF INVENTIONS

     I agree that all computer programs, documentation and other copyrightable
materials to which I contribute during my employment shall be considered "works
for hire" and shall be the sole property of the Company.  I hereby assign and
transfer to the Company my entire right, title and interest in and to all
inventions (as used in the Agreement, "inventions" shall include but not be
limited to ideas, improvements, designs and discoveries) whether or not
patentable and whether or not reduced to practice, made or conceived by me
(whether made solely by me or jointly with others) during the period of my
employment with the Company, which relate in any manner to the actual or
demonstrably anticipated business, work or research and development of the
Company or its subsidiaries, or result from or are suggested by any task
assigned to me or any work performed by me for or on behalf of the Company or
its subsidiaries.  I agree that all such inventions are the sole property of the
Company provided, however, that this Agreement does not require assignment of an
invention which qualifies fully for protection under Section 2870 of the
California Labor Code (hereafter referred to as "Section 2870").  A copy of
Section 2870 is attached as Exhibit B.

5.   DISCLOSURE OF INVENTIONS AND PATENTS

     I agree that in connection with any "invention" as defined in Paragraph 3
above:

a)I will disclose such invention promptly in writing to my immediate superior 
at the Company, with a copy to the president, regardless of whether I believe 
the invention is protected by Section 2870, in order to permit the Company to 
claim rights to which it may be entitled under this Agreement.  Such 
disclosure shall be received in confidence by the Company.

b)I will, at the Company's request, promptly execute a written assignment of 
title to the Company for any invention required to be assigned by Paragraph 3 
("assignable invention"), and I will preserve any such assignable invention 
as confidential information of the Company.

c)Upon request, I agree to assist the Company or its nominee (at its expense) 
during and at any time subsequent to my employment in every reasonable way to 
obtain for its own benefit patents and copyrights for such assignable




inventions in any and all countries, which inventions shall be and remain the 
sole and exclusive property of the Company or its nominee whether or not 
patented or copyrighted.  I agree to execute such papers and perform such 
lawful acts as the Company deems to be necessary to allow it to exercise all 
right, title and interest in such patents and copyrights.

6.   EXECUTION OF DOCUMENTS

     In connection with Paragraph 4(c), I further agree to execute, 
acknowledge and deliver to the Company or its nominee upon request and at its 
expense all such documents, including applications for patents and copyrights 
and assignments of inventions, patents and copyrights to be issued therefore, 
as the Company may determine necessary or desirable to apply for and obtain 
letters, patents and copyrights on such assignable inventions in any and all 
countries and/or to protect the interest of the Company or its nominee in 
such inventions, patents and copyrights, and to vest title thereto in the 
Company or its nominee.

7.   MAINTENANCE OF RECORDS

     I agree to keep and maintain adequate and current written records of all
inventions made by me (in the form of notes, sketches, drawings and as may be
specified by the Company), which records shall be available to and remain the
sole property of the Company at all times.

8.   PRIOR INVENTIONS

     It is understood that all inventions if any, patented or unpatented, which
I made prior to my employment by the Company are excluded from the scope of this
Agreement.  To preclude any possible uncertainty, I have set forth on Exhibit C
attached hereto a complete list of all my prior inventions, including numbers of
all patents and patent applications, and a brief description of all unpatented
inventions which are not the property of a previous employer.  I represent and
covenant that the list is complete and that, if no items are on the list, I have
no such prior inventions.  I agree to notify the Company in writing before I
make any disclosure or perform any work on behalf of the Company which appears
to threaten or conflict with proprietary rights I claim in any invention or
idea.  In the event of my failure to give such notice, I agree that I will make
no claim against the Company with respect to any such inventions or ideas.

9.   OTHER OBLIGATIONS

     I acknowledge that the Company from time to time may have agreements with
other persons or with the U.S. Government or governments of other countries, or
agencies thereof, which impose obligations or restrictions on the





Company regarding inventions made during the course of work thereunder or 
regarding the confidential nature of such work.  I agree to be bound by all 
such obligations and restrictions and to take all action necessary to 
discharge the obligations of the Company thereunder.

10.  TRADE SECRETS OF OTHERS

     I represent that my performance of all the terms of this Agreement and as
an employee of the Company does not and will not breach any agreement to keep in
confidence proprietary information, knowledge or data acquired by me in
confidence or in trust prior to my employment with the Company, and I will not
disclose to the Company or induce the Company to use any confidential or
proprietary information or material belonging to any previous employer or
others.  I agree not to enter into any agreement either written or oral in
conflict herewith.

11.  MODIFICATIONS

     This Agreement may not be changed, modified, released, discharged,
abandoned or otherwise amended, in whole or in part, except by an instrument in
writing, signed by me and the Company.  I agree that any subsequent change or
changes in my duties, salary, or compensation shall not affect the validity or
scope of this Agreement.

12.  ENTIRE AGREEMENT

     I acknowledge receipt of this Agreement and agree that with respect to the
subject matter thereof it is my entire agreement with the Company, superseding
any previous oral or written communications, representations, understandings or
agreements with the Company or any officers or representative thereof.

13.  SEVERABILITY

     In the event that any paragraph or provision of this Agreement shall be
held to be illegal or unenforceable in any jurisdiction, such paragraph or
provision shall, as to that jurisdiction, be adjusted and reformed, if possible,
in order to achieve the intent of the parties, and if such paragraph or
provision cannot be adjusted and reformed, such paragraph or provision shall,
for the purposes of that jurisdiction be voided and severed from this Agreement,
and the entire Agreement shall not fail on account thereof but shall otherwise
remain in full force and effect.
14.  SUCCESSORS AND ASSIGNS

     This Agreement shall be binding upon my heirs, executors, administrators or
other legal representative and is for the benefit of the Company, its





successors and assigns.

15.  GOVERNING LAW

     This Agreement shall be governed by the laws of the location of the 
Company's corporate headquarters, which is presently located in the State of 
California; provided, however, that in the event this provision is deemed to 
be unenforceable by a local judicial authority or governmental agency, then 
the laws of the location of my employment shall apply.

16.  COUNTERPARTS

     This Agreement may be signed in two counterparts, each shall be deemed an
original and both of which shall together constitute one agreement.

     EMPLOYEE


     ____________________________________
     (EMPLOYEE'S SIGNATURE)

     
     ____________________________________
     (PRINT NAME)


     Date:________________________________



     MICRO THERAPEUTICS, INC.


     By:__________________________________
     George Wallace, President


     Date:________________________________
EXHIBIT A

TERMINATION CERTIFICATE


     This is to certify that I do not have in my possession, nor have I failed
to return, any records, documents, data, specifications, drawings, blueprints,





reproductions, sketches, notes, reports, proposals or copies of them, or 
other documents or materials, equipment, or other property belonging to the 
Company, its successors and assigns (hereafter referred to as the "Company").

     I further certify that I have complied with and will continue to comply
with all the terms of the Employee Proprietary Information Agreement signed by
me with the Company, including the reporting of any inventions (as defined
therein) conceived or made by me covered by the Agreement.

     I further agree that in compliance with the Employee Proprietary and
Confidential Information Agreement, I will preserve as confidential all trade
secrets, confidential information, knowledge, data, or other information
relating to products, processes, know-how, designs, formulas, test data,
customer lists, or other subject matter pertaining to any business of the
Company or any of its clients, customers, consultants, licensees, or affiliates.


     _____________________________________
     Employee's Signature


     _____________________________________
     Print Name


     _____________________________________
     Date
EXHIBIT B

SECTION 2870
CALIFORNIA LABOR CODE


     Any provision in an employment agreement which provides that an employee
shall assign or offer to assign any of his or her rights in an invention to his
or her employer shall not apply to an invention for which no equipment,
supplies, facility, or trade secret information of the employer was used, and
which was developed entirely on the employee's own time, and:

     a)   which does not relate to the business of the employer or to the
employer's actual or demonstrably anticipated research or development, or
     
     b)   which does not result from any work performed by the employee for the
employer.





     Any provision which purports to apply to such an invention is to that
extent against the public policy of this state and is to that extent void and
unenforceable.
EXHIBIT C

LIST OF PRIOR INVENTIONS

Identifying Number or Title Date Brief Description ----- ---- -----------------


                              EXHIBIT 3

          PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED  (DESIGNATED BY AN 
ASTERISK (*)) AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE 
COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT               
DATED AUGUST 28, 1998

                          EXCLUSIVE DISTRIBUTION AGREEMENT

     THIS AGREEMENT ("Agreement") is made and entered into as of August 12, 1998
(the "Effective Date"), by and between ABBOTT LABORATORIES, an Illinois
corporation, on behalf of itself and its Affiliates (as defined below)
(collectively, "Abbott"), having a place of business at 100 Abbott Road, Abbott
Park, Illinois 60064, and MICRO THERAPEUTICS, INC., a Delaware corporation
("MTI"), having a place of business at 1062-F Calle Negocio, San Clemente,
California 92673.

                                      RECITALS

A.   MTI is engaged in the business of developing and manufacturing the
     Products (as defined below), and Abbott is in the business of developing,
     manufacturing and distributing pharmaceuticals, medical devices and other
     health care products.

B.   The parties desire that Abbott act as an exclusive independent
     distributor of the Products within the Territory (as defined below) under
     the terms and conditions of this Agreement.

C.   The parties also desire that Abbott invest in MTI, the details of
     which investment are fully described and governed by that certain
     Convertible Subordinated Note Agreement ("Note Agreement"), Credit
     Agreement ("Credit Agreement") and Security Agreement ("Security
     Agreement") between the parties bearing even date herewith.

          NOW, THEREFORE, in consideration of the mutual promises and covenants
     set forth below, the parties agree as follows:

     DEFINITIONS.
     1.1  "AFFILIATE" means any company or entity that controls, is
     controlled by or is under common control with, a party to this Agreement.
     As used herein, "control" means the direct or indirect ownership of fifty
     percent (50%) or more of the authorized issued voting shares in such entity
     or such other relationship as in fact legally results in effective control
     over the management, business and affairs of such entity.


     1.2  "ASP" OR "AVERAGE SELLING PRICE" means the Net Sales of any given
     Product divided by the total number of units of that Product shipped
     (excluding non-revenue units, such as samples) and invoiced by Abbott or
     its Affiliates to Customers.

     1.3 "BUSINESS DAY" means any day Monday through Friday excluding
     Abbott observed holidays.

     1.4  "CHANGE OF CONTROL EVENT" means any sale of all or substantially
     all of a party's assets or stock or a change in ownership or control (as
     defined in Section1.1) of a party, whether by merger or acquisition or
     otherwise.

     1.5  "CONFIDENTIAL INFORMATION" means proprietary, non-public
     information owned or controlled by one party to this Agreement to which the
     other party has access hereunder, including but is not limited to, trade
     secrets, discoveries, ideas, concepts, know-how, techniques, designs,
     specifications, drawings, diagrams, data, business activities and
     operations, customer lists, reports, studies and other technical and
     business information.

     1.6  "COST" means the transfer price paid by Abbott to MTI for each
     Product purchased under this Agreement, as described in Section6.1.

     1.7  "CUSTOMER" means any end-user who purchases Products from Abbott
     for use in the Territory.

     1.8  "EFFECTIVE DATE" means the date first set forth above.

     1.9 "FDA" means the United States Food and Drug Administration and
     any successor agency thereto.

     1.10 "FIELD" means devices and methods of use directed toward diagnosis,
     treatment or prevention of blood clot disorders in the peripheral 
     vasculature, including related peripheral blood clot therapy access 
     products.

     1.11 "FIRST COMMERCIAL SALE" means the first sale by Abbott of any
     Product to a Customer after the Effective Date. "First Commercial Sale"
     shall not include any sales to Abbott Affiliates or to any third party in
     connection with any clinical trials or regulatory or safety testing.

     1.12 "LES" means MTI's Liquid Embolic System (Embolyx-TM-) that
     includes an embolic agent and delivery system.

     1.13 "MARGIN" means Net Sales minus the Cost of the Product sold.

     1.14 "MTI'S SUCCESSOR" means a third party who assumes control of MTI's



     management, business and affairs following an MTI Change of Control Event.

     1.15 "NET SALES" means the gross amounts recorded by Abbott on the
     accrual method minus reasonable reserves for bad debt consistent with
     generally accepted accounting principles consistently applied by Abbott for
     sales of, and in connection with Abbott's purchase, transportation and
     importation of, the Products, less any discounts, rebates and credit for
     damaged, outdated, returned, withdrawn and recalled goods, less any
     allowances for partial-revenue or non-revenue units (e.g., samples), less
     any trade discounts earned or granted, less any cash discounts, management
     fees or rebates paid to Customers (including but not limited to Group
     Purchasing Organizations ("GPOs"), Integrated Health Care Systems ("IHSs"),
     and government agencies) and less all freight charges, insurance and other
     costs of shipping and handling, taxes, duties and the like, all to the
     extent that any of the foregoing may be recorded or incurred by Abbott in
     connection with the sale of Products under this Agreement.  For sales
     outside of the United States, the aforementioned shall be converted to
     United States dollars each calendar quarter, using Abbott's standard
     practices to determine Net Sales.

     1.16 "PRODUCTS" means all of the current MTI products referenced in
     the attached Exhibit1 as well as MTI's devices or technology developed or
     otherwise acquired by MTI after the Effective Date that have any
     application in the Field, including but not limited to any improvements,
     enhancements or line extensions thereto.  The parties shall amend Exhibit 1
     from time to time to reflect any and all Product improvements, enhancements
     and line extensions and additions of new Products and, as applicable, shall
     amend Sections6.1 and 6.2 accordingly.

     1.17 "PRODUCT LINES" means the following five (5) categories of Products 
     as of the Effective Date:  thrombolytic brushes, infusion catheters, 
     infusion guidewires, peripheral micro catheters, and accessory kits.
     Product Lines shall also include other Product categories that may be
     developed during the Term.

     1.18 "QSR" or "QUALITY SYSTEM REGULATIONS" means all applicable
     standards relating to manufacturing practices for medical devices
     promulgated by the FDA in the form of laws, regulations or guidance
     documents (including but not limited to advisory opinions, compliance
     policy guides and guidelines), and which guidance documents MTI knows or
     reasonably should have known to be applicable, current, feasible and
     valuable in ensuring device quality within the device manufacturing
     industry for such products in effect on the Effective Date or at any time
     thereafter during the Term.

     1.19 "SPECIFICATIONS" means MTI's most current specifications for the
     manufacture of each of the Products.

     1.20 "STANDARD MANUFACTURING COST" means with respect to any
     Product, MTI's fully allocated cost of manufacturing such Product (in
     accordance with QSR and 



     the Specifications), as determined in accordance with Generally Accepted 
     Accounting Principles ("GAAP"), consistently applied, including all 
     direct and indirect costs related to the manufacture of such Product, 
     including without limitation, costs for labor, materials (including, 
     without limitation, components of such Product), quality control, 
     regulatory compliance, manufacturing administrative expenses, 
     subcontractors, fixed and variable manufacturing overhead costs and 
     business unit, division or company costs reasonably allocable to the 
     manufacture, packaging and labeling of such Product, in each case, 
     respectively.

     1.21 "TERM" means the Initial Term (as defined in Section14.1) plus any
     extensions pursuant to Section14.1 and/or Section15.5, unless earlier
     terminated pursuant to Sections14.2, 14.3 or 14.4.

     1.22 "TERRITORY" means the fifty (50) United States and territories of
     the United States (including but not limited to,  Puerto Rico) as well as
     Canada.  The Territory may be expanded from time to time by mutual
     agreement of the parties to include additional countries not currently
     committed by MTI to alternative distributors for the Products.

2.   APPOINTMENT AND STATUS OF ABBOTT

     2.1  APPOINTMENT.  MTI hereby appoints Abbott as the exclusive
     distributor of the Products to Customers in the Territory.  During the
     Term, MTI shall not itself or through its Affiliates (i) make sales of any
     Products within the Territory (except for clinical trials or regulatory
     approval or compliance purposes), (ii)appoint or authorize any other
     distributor or sales representative to make sales of any Products within
     the Territory or (iii) sell any Products to any entity that it knows or has
     reason to know will sell such Products in the Territory without Abbott's
     prior written permission.  Abbott may, in its discretion, distribute,
     market and sell the Products in the Territory through any Affiliate of
     Abbott Laboratories or use other subdistributors and agents of its own
     choosing in distributing, marketing and selling any Products in the
     Territory.  Abbott shall have the right during the Term to represent to the
     public that it is an authorized exclusive independent distributor of the
     Products within the Territory.

     2.2  INDEPENDENT CONTRACTOR.  Abbott is and at all times shall be an
     independent contractor of MTI in all matters relating to this Agreement.
     Each party and its employees are not agents or partners of the other party
     for any purposes and, except as otherwise expressly agreed in writing by
     the other party,  have no power or authority to bind or commit the other
     party in any way.

3.   ABBOTT'S DUTIES.  Abbott shall use reasonable commercial efforts to
     introduce, promote the sale of, solicit and obtain orders for Products from
     Customers in accordance with the terms of this Agreement.  Additionally,
     Abbott shall be 



     responsible for all order entry, distribution, billing, collection of sales
     revenue, Customer service support (excluding technical Product support),
     and processing of returns for the Products in the Territory.  In 
     particular, Abbott shall assume the following responsibilities:

     3.1  SALES.  Abbott shall assume responsibility for all sales and
     marketing activities for the Products in the Territory through its Abbott
     Critical Care Systems commercial organization or another commercial
     organization at Abbott's sole discretion.  Except as otherwise expressly
     stated herein, Abbott shall be responsible for its own sales and marketing
     costs, including but not limited to training and maintenance of its sales
     organization, formation of clinical symposia, promotion at appropriate
     trade shows, publication of promotional materials/reprints, and publication
     of appropriate journal advertisements.

     3.2  CONTRACTING.  As of the Effective Date, except as otherwise
     mutually agreed during the Transition Period referenced in Section4.2,
     Abbott shall assume full responsibility for negotiating and entering into
     all Customer contracts, including but not limited to, all hospital, GPO and
     IHS sales contracts for the Products in the Territory.  Abbott shall be
     solely responsible for establishing sales prices for Products for all
     Customers in the Territory.  MTI shall provide Abbott with MTI's current
     customer lists as well as current and proposed customer contracts for the
     Products.  In accordance with procedures to be mutually agreed upon and to
     be implemented as soon as practicable after the Effective Date, MTI shall
     assign to Abbott and Abbott shall administer all of MTI's pre-existing
     sales contracts with customers for the Products in the Territory during the
     Term.

     3.3  FORECAST.  The initial sales forecast ("Forecast") covering Net
     Sales for the first five (5) full calendar years of the Term is set forth
     in the attached Exhibit2.  This Forecast shall be revised by mutual
     agreement of the parties to account for adverse market/competitive
     conditions and/or Product safety and efficacy issues.  Abbott and MTI shall
     prepare and agree upon a new Forecast prior to September30 of each calendar
     year during the Term.  Each Forecast shall encompass the following five (5)
     full calendar years, with projections gaited on a monthly basis for the
     first calendar year and annually thereafter.  Such Forecasts shall include
     a sales Forecast by Product Line, anticipated quantity and quarterly
     estimated delivery dates.  With respect to Product Line extensions, the
     parties shall make Forecast adjustments as mutually agreed upon,
     commensurate with the expanded total available market opportunity
     associated with the expanded Product offerings.  If the parties are unable
     to reach agreement on Forecasts for any year during the Initial Term after
     the initial Forecast period set forth in Exhibit2, then Abbott shall
     continue to distribute the Products in the Territory for the remainder of
     the Initial Term, paying to MTI a commission on Net Sales (pursuant to
     Section6.2) based on the weighted average commission (i.e., the percentage
     equal to total commissions divided by total Net Sales) paid during the
     final calendar year for which a Forecast was mutually agreed by the
     parties.  If the Initial Term 


     is extended pursuant to Sections14.1.1 or 14.1.2 and the parties are
     subsequently unable to reach agreement for a Forecast for any calendar
     year beyond the Initial Term, MTI may terminate this Agreement pursuant
     to Section14.4.3.

     3.4  NO MINIMUM PURCHASE REQUIREMENTS.  Subject to the provisions of
     Section14.3, nothing herein shall be construed to obligate Abbott to
     purchase any minimum quantity of any of the Products.

     3.5  COMPLIANCE WITH LAWS.  Subject to Section 4 below, Abbott shall,
     at all times during the Term, maintain any necessary legal permits and
     licenses required by any governmental unit or agency to distribute the
     Products hereunder and shall comply with all applicable national, state,
     regional and local laws and regulations, in performing its duties hereunder
     and in any of its dealings with respect to the Products as an independent
     distributor, except where the failure to obtain such permits or licenses or
     failure to comply will not have a material adverse effect on Abbott's
     ability to distribute the Products.

4.   MTI'S DUTIES.  MTI shall use reasonable commercial efforts to maintain
     adequate manufacturing capacity and sufficient supply of the Products
     during the Term.  Should MTI fail to maintain adequate manufacturing
     capacity and/or sufficient supply of the Products, MTI and Abbott shall in
     good faith use their best efforts to develop jointly a plan to ensure
     continued Product supply, which plan may include, at Abbott's reasonable
     discretion, Abbott's exercise of its standby right to manufacture the
     Products under Section4.12 and appropriate mutually agreed upon Forecast
     adjustments pursuant to Section3.3.  MTI shall use commercially reasonable
     efforts to develop appropriate Product Line extensions in order to assure
     maintenance of market-competitive Products in the Field.  MTI shall give
     due consideration to recommendations from Abbott in this regard.  MTI shall
     also assume the following responsibilities:

          4.1  RESPONSIBILITY FOR REGULATORY AND SAFETY TESTING REQUIREMENTS
          AND FOR OBTAINING REQUIRED APPROVALS AND REGISTRATIONS

          4.1.1  REGULATORY AND SAFETY TESTING REQUIREMENTS.  MTI shall be
considered to be the finished device manufacturer for the Products and shall be
responsible for compliance with all regulatory and safety testing requirements
for the Products in the Territory.  MTI shall provide Abbott with the data and
results from clinical trials with respect to each of the Products.

          4.1.2  REGULATORY APPROVALS AND REGISTRATIONS.  MTI shall establish
and maintain all regulatory approvals required to manufacture and permit sale of
the Products in the Territory, including, at a minimum all necessary, FDA
approvals and the equivalent Canadian approvals for each Product.

          4.1.3  QUALITY SYSTEM COMPLIANCE.  MTI shall be solely responsible
for 



compliance with all Quality System Regulations affecting the Products, 
including, at a minimum, International Standards Organization ("ISO") 
certification and compliance with FDA Quality System Regulations.  During the 
Term, MTI shall manage the complaint files associated with the Products in 
the Territory and provide copies of those complaint files to Abbott upon 
Abbott's request.  In accordance with a timetable to be mutually agreed upon 
by the parties, Abbott shall have the right to review MTI's manufacturing 
operations in order to ensure compliance with Quality System Regulations.  
Abbott may, in its discretion, make QSR recommendations to MTI and MTI shall 
use reasonable efforts to implement any QSR recommendations made by Abbott.

          4.4.4  POST-MARKETING REGULATORY REPORTING.  MTI shall be
responsible for reporting any reportable events, including but not limited to
patient deaths or injuries, associated with the Products to the FDA and other
appropriate authorities; provided, however, that to the extent required by
applicable law Abbott may also report such events to the applicable authorities.
Abbott shall notify MTI of any such event within two (2) Business Days after
Abbott learns of such an event.  Each party shall provide the other party with
any assistance reasonably requested by the other party in connection with such
activities, including without limitation access to the Product files.  MTI shall
update Abbott periodically (in accordance with a timetable to be mutually agreed
upon by the parties) on any reportable events involving the Products in the
Territory for which MTI has filed reports with the FDA or other regulatory
authorities in the Territory.

          4.1.5  POST-MARKETING CLINICAL TRIALS.  MTI shall fund, conduct and
complete post-approval clinical trials in order to establish clinical/commercial
user preference status for the Products, in accordance with the Post-Market
Clinical Development Program attached hereto as Exhibit 3.  Upon mutual
agreement of the parties regarding appropriate timetables, these clinical trials
shall be conducted by MTI, with assistance from Abbott if so requested by MTI.

          4.1.6  REIMBURSEMENT.  MTI shall use its best efforts to assist
Customers in obtaining reimbursement from governmental agencies, third-party
payors, or other parties from whom reimbursement may be sought in connection
with sales of the Products to Customers.

     4.2  TRANSITION PERIOD.  MTI shall transition full commercial
responsibilities for marketing and sale of the Products to Abbott during a six
(6) month transitional period ("Transition Period") beginning with the date of
First Commercial Sale of any Product by Abbott, after which Transition Period
MTI's commercial responsibility for the Products shall be limited to providing
general support upon Abbott's request.

     4.3  LITERATURE.  Upon Abbott's request, MTI shall furnish Abbott, without
charge (except as otherwise agreed in writing), with reasonable quantities of
technical, advertising and selling information and literature in English
concerning the Products which Abbott may incorporate or include with its own
marketing materials and 



information relating to the Products.  Abbott shall have the right to develop 
and distribute its own marketing materials, brochures and other information 
regarding the Products in connection with its sales and marketing activities 
under this Agreement, subject to the prior approval of MTI, which approval 
shall not be unreasonably withheld.

     4.4  MARKETING SUPPORT.  To assist in selling and marketing the Products in
the Territory, each party shall, as applicable:

          4.4.1  provide the other party with any information reasonably
requested by the other party for the purpose of complying with regulatory and
other legal requirements relating to the Products;

          4.4.2  provide the other party with information on marketing and
promotional plans for the Products as well as copies of marketing, advertising,
sales and promotional literature concerning the Products, if any; and

          4.4.3  provide the other party with certificates of free sale,
trademark authorizations and any other documents relating to the Products which
the other party may reasonably request to satisfy the requirements of the laws
of the various jurisdictions within the Territory and of any competent
authority.

     4.5  SALES AND TRAINING.  MTI shall provide reasonable initial training of
Abbott's personnel in the use of the Products, upon Abbott's request.  Abbott
shall pay the cost of any travel and lodging for its personnel attending any
such training, and MTI shall pay the cost of the trainers and materials.

     4.6  TRADE SHOWS.  For trade shows and congresses pertinent to the Field in
the Territory, MTI shall assist Abbott, subject to mutual written agreement of
the parties, with the promotion of the Products.  Such assistance may include
sharing of costs, provision of personnel and materials as well as joint
exhibits.

     4.7  PRODUCT CHANGES.  MTI shall provide Abbott with at least ninety (90)
days prior written notice of any change in the Specifications or the processes,
materials, equipment, inspection, testing, manufacturing location and the like
of which it has knowledge that may have any effect on the Products or their
uses.  MTI shall give due consideration to any comments or suggestions Abbott
may make with respect to such changes.

     4.8  INSURANCE.  MTI shall at all times during the Term maintain product
liability insurance covering the Products with minimum annual limits of  Two
Million Dollars ($2,000,000)  per occurrence and  Two Million Dollars
($2,000,000)  in the aggregate.  MTI shall maintain such insurance for a minimum
of five (5) years after termination of this Agreement.  Within thirty (30) days
of the Effective 



Date, MTI shall deliver to Abbott a certificate of insurance evidencing such 
insurance and stating that the policy will not be canceled or modified 
without at least thirty (30) days prior written notice to Abbott.

     4.9  INTELLECTUAL PROPERTY RIGHTS.   MTI shall use reasonable commercial
efforts to file, prosecute, protect and maintain its intellectual property
rights (including patents, know-how and MTI Trademarks, as defined below)
relevant to the Products in the Territory at its own expense.  If MTI becomes
aware of any actual or potential third party infringement of such intellectual
property rights or any third party claim that MTI's manufacture and sale of the
Products to Abbott hereunder or Abbott's sale of Products to Customers infringes
any third party intellectual property rights, MTI shall promptly notify Abbott.

     4.10 SAMPLES.  During the Term, MTI shall provide Abbott with a reasonable
amount of samples of each of the Products, at no charge, as requested by Abbott
(not to exceed  *   (  *  ) of total unit sales by Product Line on an annual
basis) for sales presentations and medical meeting demonstrations or
presentations and for testing purposes.

     4.11 RIGHT OF FIRST DISCUSSION.  During the Term, MTI shall provide to
Abbott an exclusive right of first discussion if MTI elects to consider and/or
pursue discussions with third parties on potential commercial collaborations in
the Territory for potential peripheral vascular applications of MTI's LES
(Embolyx-TM-) embolization product currently under development.  If MTI
considers and/or desires to pursue potential third party sales, marketing and/or
distribution collaborations for peripheral applications of LES in the Territory,
MTI shall negotiate first and in good faith with Abbott for a period of not less
than   *   (  *  ) days for distribution rights for such products.  If the
parties do not execute an agreement for distribution of such products within
such  *  ( * ) day period (or such longer period as may be mutually agreed upon
by the parties), MTI shall have no further obligations to Abbott in this regard.
MTI shall give serious consideration to any reasonable commercial terms
proposed by Abbott in writing with regard to peripheral LES applications.  If
the parties are unable to agree on the terms of such written offer, then for a
period of  *  (  *  )  *  following the above-referenced discussion period, MTI
shall  not accept a third party offer for commercialization of peripheral LES
applications that, in MTI's sole opinion, is less favorable to MTI than Abbott's
last written offer, considering all relevant factors, including without
limitation, any equity components as well as milestones, commissions and/or
royalties.

     4.12 STANDBY RIGHT TO MANUFACTURE.  If MTI is unable or unwilling for any
reason (other than where determined as due to Abbott's breach of this Agreement
or due to bona fide dispute that the parties have submitted for resolution
pursuant to the provisions of Section15.4) to supply any Products as and when
ordered by Abbott in accordance with this Agreement, then, after the 



expiration of a reasonable period of time (not to exceed   *   ( *  )   *  ), 
during which MTI may remedy the cause of its inability to supply the 
Products, Abbott, shall have the right, but not the obligation, to 
manufacture or have manufactured the Products under MTI's patents and other 
intellectual property rights during the period that MTI is unable to supply.  
To the extent necessary to implement Abbott's standby manufacturing rights 
under this Section4.12, MTI hereby grants Abbott a non-exclusive, 
royalty-free license under MTI patents and other intellectual property rights 
to make, have made, use, import, sell and offer for sale the Products in the 
Territory.  During such period, MTI shall provide Abbott with manufacturing 
know-how and reasonable assistance to enable Abbott (and, as applicable, 
Abbott's third party manufacturer) to manufacture the Products.  At such time 
as MTI can demonstrate to Abbott's reasonable satisfaction that MTI is 
capable of resuming the manufacture and supply of Products, Abbott's license 
hereunder shall cease and Abbott shall resume purchasing Products from MTI 
and Abbott shall return to MTI all MTI equipment and technology utilized by 
Abbott for the manufacture of Products.

5.   TRADEMARKS AND LABELING.
     5.1  TRADEMARK LICENSE.  During the Term, MTI hereby grants to Abbott an
exclusive, royalty-free license to use the current and future trademarks, trade
names and logos used by MTI at any time during the Term to identify the Products
(the "MTI Trademarks") solely in the course of Abbott's advertisement,
promotion, distribution and sale of the Products in the Territory.  Abbott's use
of the MTI Trademarks shall be in accordance with MTI's policies that are
provided to Abbott in writing from time to time.  Abbott shall display the MTI
Trademarks on the Products distributed under this Agreement.  Use of the MTI
Trademarks on the Products shall not give Abbott any proprietary rights in the
MTI Trademarks except for the license rights granted in this Section5.1.

     5.2  OWNERSHIP.  Abbott acknowledges that, subject only to the license
granted herein to Abbott, MTI owns and retains all proprietary rights in all MTI
Trademarks.

     5.3  NO CONTINUING RIGHTS.  Upon termination of this Agreement, Abbott
shall cease all further display, advertising and use of all MTI Trademarks
except in connection with the sale of Products in inventory as provided in
Section 14.5.2 below.

     5.4  TRADEMARKS USED IN LABELING.  In addition to the MTI Trademarks, the
Products may bear trademarks selected by Abbott ("Abbott Trademarks") in a
manner mutually agreed upon by the parties.  Notwithstanding anything to the
contrary set forth herein, MTI shall not use the Abbott Trademarks on any
Product sold outside the Territory without the prior written consent of Abbott.
Upon termination of this Agreement, MTI shall cease all use of the Abbott
Trademarks.



     5.5  LOT NUMBERS AND LIST NUMBERS IN LABELING.  As soon as commercially
feasible after the Effective Date, MTI shall make the following Product labeling
changes: (a) each saleable unit of the Products shall have an Abbott list number
printed on the label (including the case labeling) and (b) each saleable unit of
the Products shall have  identification numbers using the Abbott lot numbering
convention and expiration dating formats (in compliance with  * , which Abbott
shall supply to MTI) on the label (including the case labeling).  Abbott shall
supply MTI with Product list numbers, lot number suffix and lot number blocks as
soon as commercially feasible after the Effective Date.

6.   FINANCIAL TERMS.
     6.1  COST.  The Cost to Abbott for each Product purchased by Abbott from
MTI under this Agreement shall be an amount equal to MTI's Standard
Manufacturing Cost for the Product sold, not to exceed a maximum percentage of
the appropriate aggregate Average Selling Price for the appropriate time period,
calculated according to the following schedule:

                   MAXIMUM COST (as a % of Average Selling Price)

      MTI PRODUCT LINE   EFF. DATE  TO 12/31/98        1999      2000-2007

     Infusion Catheters                 *                *           *
     Infusion Guidewires                *                *           *
     Peripheral Micro Catheters         *                *           *
     Mechanical Thrombolytic Devices    *                *           *
     Accessory Kits                     *                *           *


     The Cost paid by Abbott to MTI for any given Product shall be not less than
a minimum of  *  (  *  ) of the appropriate Average Selling Price for that
Product.  The parties shall review MTI's Standard Manufacturing Cost for the
Product sold for each Product and Product Line on or before September 30 of each
year during the Term and establish the Standard Manufacturing Cost for the
Product sold (and accordingly, the Cost for each Product) for the following
calendar year at such time.

     6.2  COMMISSIONS.  Net Sales and Average Selling Prices for each Product
Line (infusion catheters, infusion guidewires, peripheral micro catheters,
mechanical thrombolytic devices, accessory kits) shall be updated and calculated
by Abbott and reviewed by the parties on a quarterly basis.  Within forty-five
(45) days following the end of each calendar quarter during the Term, Abbott
shall pay MTI a commission, calculated by individual Product Line on a calendar
quarterly basis, as follows:



               (i) for sales up to and including Forecast, MTI shall receive  *
(  * ) of the Net Sales of the Products by Abbott, calculated by individual
Product Line ;
               (ii) for sales over Forecast up to   *   (  *  ) of Forecast, MTI
shall receive   *   ( * ) of Net Sales over Forecast and up to  *   (  *  ) of
Forecast, calculated by individual Product Line;
               (iii) for sales over  * (  *  ) of Forecast, MTI shall receive  *
(  *  ) of Net Sales over   *   (  *  ) of Forecast, calculated by individual
Product Line.
               For example, if Abbott's Net Sales of thrombolytic brushes in
calendar year 1999 (for which the Forecast is  *   ) are  *  , the commission
payable for this Product Line shall be as follows:

     Net Sales Portion   Commission Percentage    Commission Payable
     Up to Forecast
     (up to $2,742,000)           *                       *

     100-120% Over Forecast
     ($2,742,001-$3,290,400)      *                       *

     Over 120% of Forecast
     ($3,290,401-$3,500,000)      *                       *
     TOTAL                                                *


      6.3 MARKETING/DISTRIBUTION FEE.  Within fifteen (15) days of Abbott's
First Commercial Sale of any Product within the Territory, Abbott shall pay MTI
a one time marketing/distribution fee of One Million Dollars ($1,000,000) in
consideration of the Product marketing/distribution rights granted to Abbott
hereunder.  Abbott shall promptly notify MTI of its First Commercial Sale.

7.   ORDER PLACEMENT
     7.1  PURCHASE ORDERS AND ACKNOWLEDGMENTS
          7.1.1  PURCHASE ORDERS.  All purchases of the Products by Abbott
from MTI shall be made by written purchase order specifying Product type,
quantity, price, requested delivery schedule, delivery location, and shipping
instructions.  All purchases of the Products by Abbott from MTI during the Term
shall be subject to the terms and conditions of this Agreement.  Any additional
or different terms and conditions in a purchase order or confirmation form which
conflict with this Agreement shall be of no force and effect unless the parties
specifically agree in writing to such conflicting terms and conditions.

          7.1.2   ACCEPTANCE OF ORDERS.  All orders and modifications to
orders are subject to acceptance by MTI; provided, however, that MTI shall
accept all purchase orders by Abbott for the Products as long as such orders are
consistent with the current Forecasts (as described in Section 3.3 above).  MTI



shall use commercially reasonable efforts to fill all other orders by Abbott 
for the Products hereunder.  If MTI believes that it will not be able to 
satisfy Abbott's orders for the Products, MTI shall promptly notify Abbott, 
specifying the reasons for the delay and its expected duration.

     7.2  TITLE AND DELIVERY OF PRODUCTS
          7.2.1   All Products shall be delivered FOB, MTI's United States
manufacturing facility, to the carrier designated by Abbott.  If no such
designation is made by Abbott, MTI shall select the most cost-effective carrier,
given the time constraints known to MTI.  MTI's title and the risk of loss to
the Products shall pass to Abbott upon delivery of the Products to the carrier.

          7.2.2   Abbott shall pay all taxes (including, without limitation,
sales, value-added and similar taxes) payable with respect to the sale and
purchase of Products under this Agreement, except for taxes based on MTI's
income.

          7.2.3   All Products shall be suitably packed for shipment and
marked by MTI for shipment to Abbott's United States facilities designated in
the purchase order.  Abbott shall not export the Product outside the Territory,
and shall pay all freight, insurance and other shipping expenses, as well as any
special packing expense.

          7.2.4   MTI may make partial shipments against Abbott's purchase
orders upon mutual agreement of the parties.

          7.2.5   Any delivery of Products by MTI to Abbott which fail to meet
the Specifications shall be promptly returned to MTI at MTI's expense.

     7.3  ORDER CHANGES
          7.3.1   Abbott may reschedule each order once, provided no such
rescheduling shall  exceed forty-five (45) days from the originally scheduled
ship date.  MTI shall work with Abbott in good faith on a case by case basis to
resolve any issues related to market changes and potential impact on orders
placed with MTI.

          7.3.2   Abbott may cancel all or any portion of an order or change
the scope of an order at any time prior to fifteen (15) days before the
scheduled ship date.  Thereafter, Abbott may do so only with MTI's written
approval.

     7.4  RECALLS.  The parties shall give prompt notice of any contemplated
recall of any Products to the other party (including notice by MTI to Abbott of
any such recall outside the Territory).  The parties shall give each other full
cooperation throughout the recall process whether such recall is voluntary or
otherwise, and shall comply in full with applicable laws, regulations and
governmental agency directives with respect to such recall.  Any recall expenses



incurred by Abbott resulting from MTI QSR deficiencies, Product quality defects,
Product performance defects or government actions will be fully reimbursed to
Abbott from MTI.

8.   PAYMENT AND RECORDS
     8.1  PAYMENT TERMS.  Abbott shall pay to MTI within forty-five (45) days of
the receipt of invoice an estimated amount mutually agreed by the parties for
the Cost specified in Section 6.1 above for each Product delivered during that
month.  Additionally, Abbott shall pay to MTI within forty-five (45) days of the
end of each calendar quarter an actual amount for the commission on Product
sales during such quarter as specified in Section 6.2.  All payments shall be
made in United States dollars.  In accordance with Section4.10, Abbott may
distribute as clinical samples up to  *  (* ) of the total number of Products
provided to Abbott under this Agreement without payment of commissions.  Such
samples will be included in any reconciliation as Net Sales at the price (if
any) for such samples at zero dollars if the sample was distributed by Abbott
free of charge, and the Cost for such samples shall be reimbursed by MTI to
Abbott pursuant to Section 8.2.

     8.2  QUARTERLY RECONCILIATION.  At the end of each calendar quarter, Abbott
shall reconcile the estimated payments made to MTI under Section 8.1 above with
the actual Cost for the Products purchased during such calendar quarter and
shall provide a report to MTI of such reconciliation within thirty (30) days
after the end of such quarter.  Specifically, reconciliations shall be made
               (i)  to account for unanticipated changes to Product ASPs, if
such ASP changes served to affect Abbott's Costs paid pursuant to Sections 6.1
and 8.1, and
               (ii) to account for non-revenue (e.g., sample) units distributed
by Abbott but previously paid for by Abbott at a Cost equal to MTI's Standard
Manufacturing Cost sold pursuant to Section 6.1.

     If the reconciliation reveals that Abbott owes MTI additional amounts,
Abbott shall remit payment of such amount with its report.  If the
reconciliation reveals that Abbott has overpaid in its estimated payment, MTI
shall reimburse Abbott within ten (10) days of receipt of the report.

     8.3  SALES RECORDS.  No more frequently than once in any twelve (12) month
period during the Term, upon MTI's request and at MTI's expense, Abbott shall
allow an independent auditor mutually agreed upon by the parties to examine
Abbott's books and records relating to the distribution and sale of the Products
for the purpose of verifying the payments made by Abbott pursuant to Section 8.
If, as a result of such examination, an underpayment or overpayment is found,
the applicable party will rectify the underpayment or overpayment within thirty
(30) days; provided that if such examination shows an underpayment by Abbott of
more than  ten percent (10%), then Abbott shall pay the cost of such 



audit.  The audit shall take place during Abbott's normal business hours, at 
a location to be designated by Abbott, and may not disrupt the operation of 
Abbott's business. The audit shall be completed within five (5) Business Days 
and shall cover a period not more than two (2) years back from the date of 
the audit.  Scheduling of the audit shall be subject to mutual agreement of 
the parties.

      8.4 COST RECORDS.  No more frequently than once in any twelve (12) month
period during the term of this Agreement, upon Abbott's request and at Abbott's
expense, MTI shall allow an independent auditor mutually agreed upon by the
parties to examine MTI's books and records relating to the Standard
Manufacturing Cost for the purpose of verifying the Cost paid by Abbott pursuant
to Section 6.1.  If, as a result of such examination, an underpayment or
overpayment is found, the applicable party will rectify the underpayment or
overpayment within thirty (30) days; provided that if such examination shows an
overpayment by Abbott of more than ten percent(10%), then MTI shall pay the cost
of such audit.  The audit shall take place during MTI's normal business hours,
at a location to be designated by MTI, and may not disrupt the operation of
MTI's business.  The audit shall be completed within five (5) Business Days and
shall cover a period not more than two (2) years back from the date of the
audit.  Scheduling of the audit shall be subject to mutual agreement of the
parties.

9.   RETURNS
          Abbott may return for a refund any Product that does not meet MTI's
warranty as set forth in Section 11.2.  MTI shall issue a return material
authorization ("RMA") number for such defective Product upon Abbott's request.
At MTI's expense, Abbott shall return any such defective Product to MTI with
documentation referencing the applicable RMA number.  MTI shall submit such
refund and reimbursement of the return shipment cost to Abbott within forty-five
(45) days of receiving the defective Product.

     9.2  Each Product delivered under this Agreement shall have, upon Abbott's
receipt of such Product, at least seventy-five percent (75%) of the applicable
original Product shelf-life remaining, except as otherwise agreed in writing by
Abbott.  At MTI's expense, Abbott may return for a refund or replacement, at
Abbott's option, any Product that does not meet this requirement.  MTI shall
submit such refund and reimbursement for shipping costs or replacement Product
to Abbott within forty-five (45) days of receiving the returned Product.

10.  CONFIDENTIAL INFORMATION
     10.1 IDENTIFICATION OF CONFIDENTIAL INFORMATION.  Confidential Information
provided by the disclosing party (or any of its Affiliates) and entitled to
protection under this Agreement shall be identified as such by appropriate
markings on any 



documents exchanged.  If the disclosing party provides information other than 
in written form, such information shall be considered Confidential 
Information only if the information by its nature would reasonably be 
considered of a confidential nature or if the receiving party, due to the 
context in which the information was disclosed, should have reasonably known 
it to be confidential, and the disclosing party gives written notice within 
ten (10) days of disclosure that such information is to remain confidential 
or the disclosing party had previously confirmed in writing that such 
information was confidential.

     10.2 PROTECTION OF CONFIDENTIAL INFORMATION.  Each party acknowledges that
the other party claims its Confidential Information as a special, valuable and
unique asset.  During the Term and for three years (3) years thereafter, for
itself and on behalf of its Affiliates, officers, directors, agents, and
employees, each party agrees to the following:

          10.2.1  Receiving party shall not disclose the Confidential
Information to any third party or disclose to an employee unless such third
party or employee has a need to know the Confidential Information in order to
enable the disclosing party to exercise its rights or perform its obligations
under this Agreement.  Receiving party shall use the Confidential Information
only for the purposes of exercising its rights or fulfilling its obligations
under this Agreement and shall not otherwise use it for its own benefit.  In no
event shall the receiving party use less than the same degree of care to protect
the Confidential Information as it would employ with respect to its own
information of like importance which it does not desire to have published or
disseminated;

          10.2.2  If the receiving party faces legal action or is subject to
legal proceedings requiring disclosure of Confidential Information, then, prior
to disclosing any such Confidential Information, the receiving party shall
promptly notify the disclosing party and, upon the disclosing party's request,
shall cooperate with the disclosing party in responding to and/or contesting
such request.

     10.3 RETURN OF CONFIDENTIAL INFORMATION.  All information furnished under
this Agreement shall remain the property of the disclosing party and shall be
returned to it or destroyed or purged promptly at its request upon termination
of this Agreement; provided, however, that Abbott may retain Confidential
Information of MTI as reasonably necessary for Abbott to be able to complete the
sale of Products on order or in inventory at the time of termination and to
support Products already sold by Abbott under this Agreement.  All documents,
memoranda, notes and other tangible embodiments whatsoever prepared by the
receiving party based on or which includes Confidential Information shall be
destroyed to the extent necessary to remove all such Confidential Information
upon the disclosing party's request, except that one copy of such information
that may be retained in the legal files of the receiving party.  Upon the
request of the 



disclosing party, all destruction under this Section 10.3 shall be certified 
in writing to the disclosing party by an authorized representative of the 
receiving party.

     10.4 RESIDUAL INFORMATION.  Either party shall be free to use for any
purpose (including, but not limited to, use in the development, manufacture,
marketing and maintenance of its own products and services) the Residuals
resulting from access to or work with Confidential Information of the other
party, provided that the party maintains the confidentiality of the Confidential
Information as provided herein.  The term "Residuals" shall mean information in
non-tangible form that may be inadvertently retained by persons who have had
rightful access to the Confidential Information, including the ideas, concepts,
know-how or techniques contained therein.  Notwithstanding the provisions of
this Section 10.4, during the Term, neither party may avoid its obligations
toward a particular item of the Confidential Information merely by having a
person commit such item to memory so as to reduce it to a non-tangible form.
Further, this Section 10.4 does not provide to either party a license to use any
patented, trademarked or copyrighted material of the other party.

     10.5 LIMITATIONS.  The confidentiality obligations in this Section 10 shall
not apply to disclosed information which the receiving party can prove receiving
party knows at the time of disclosure, free of any obligation to keep it
confidential, as evidenced by written records; is or becomes generally publicly
known through no fault of the receiving party; receiving party independently
developed without the use of any Confidential Information, as evidenced by
written records; or receiving party rightfully obtains from a third party who
has the right to transfer or disclose it.

     10.6 PUBLIC ANNOUNCEMENTS.  Notwithstanding anything to the contrary
contained in this Agreement, neither party may initiate any public announcement
concerning the subject matter of this Agreement or the Convertible Subordinated
Note Agreement without the prior written approval of the other party; provided,
however, that this Section 10.6 shall not be construed to limit Abbott's ability
to market the Products as it deems necessary or appropriate.

11.  REPRESENTATIONS AND WARRANTIES
      11.1   RECIPROCAL REPRESENTATIONS AND WARRANTIES.  Each party represents
and warrants to the other party as follows:

               (i)   It is a corporation duly organized and validly existing
under the laws of its state or other jurisdiction of incorporation or formation;
               (ii)  It has the power and authority to execute and deliver this
Agreement, and to perform its obligations hereunder;
               (iii) The execution, delivery and performance by it of this
Agreement and its compliance with the terms and provisions hereof does not and
will not conflict with or result in a breach of any of the terms and provisions
of or 



constitute a default under (a) any loan agreement, guaranty, financing
agreement, agreement affecting a product or other agreement or instrument
binding or affecting it or its property, including but not limited to any
agreements resulting in a Change of Control Event; (b) the provisions of its
charter documents or by-laws; or (c) any order, writ, injunction or decree of
any court or governmental authority entered against it or by which any of its
property is bound;
               (iv)  No authorization, consent or approval of any governmental
authority or third party is required for the execution, delivery or performance
by it of this Agreement, and the execution, delivery or performance of this
Agreement will not violate any law, rule or regulation applicable to such party;
and
               (v)   This Agreement has been duly authorized, executed and
delivered and constitutes its legal, valid and binding obligation enforceable
against it in accordance with its terms and subject, as to enforcement, to
bankruptcy, insolvency, reorganization and other laws of general applicability
relating to or affecting creditors' rights and to the availability of particular
remedies under general equity principles.

      11.2   MTI PRODUCT WARRANTIES.  MTI warrants that the Products
manufactured by MTI and delivered to Abbott hereunder shall (i) from the date of
shipment until the end of the specified shelf-life (as specified in Section9.2)
conform to the Specifications and all applicable laws and regulations relating
to the manufacture of the Product, including, but not limited to FDA and
Canadian Quality System Regulations, (ii) be transferred free and clear of any
security interest, liens, and encumbrances, and (iii) not infringe any third
party patents, trademarks, copyrights, or other third party proprietary rights.

      11.3   YEAR 2000 WARRANTIES.  The parties make the following warranties
with respect to Year 2000 compliance:
               (i)  MTI warrants that all software used by it in the manufacture
of Products and in its business relationship with Abbott will, on and following
January1, 2000, have no lesser functionality with respect to records containing
dates before or after January1, 2000 than previously with respect to dates prior
to January2, 2000.
               (ii) Abbott warrants that all software used by it in its business
relationship with MTI will, on and following January1, 2000, have no lesser
functionality with respect to records containing dates before or after January1,
2000 than previously with respect to dates prior to January1, 2000.

12   INDEMNIFICATION
     12.1 INDEMNIFICATION.  Subject to Section 12.3 below, MTI shall at its own
expense, defend Abbott (including its Affiliates, directors, officers, employees
and shareholders) against an "Indemnified Claim," as defined in Section 12.2
below, and hold Abbott (including its Affiliates, directors, officers, employees
and 



shareholders) harmless and indemnify Abbott (including its Affiliates, 
directors, officers, employees and shareholders) from any loss, expense, 
liability and/or settlement (including attorneys' fees) resulting from an 
Indemnified Claim.

     12.2 INDEMNIFIED CLAIM.  For purposes of this Agreement, an "Indemnified
Claim" shall mean: (i) any claim asserting that Abbott's or any Customers' sale,
purchase, possession, manufacturing in accordance with Section4.12, or use of
the Products or any part thereof infringes any third party patent, trade secret,
trademark, copyright or other proprietary right; (ii) any claim arising from or
related to a failure of MTI to comply with its representations and warranties
under this Agreement; and (iii) any claim asserting that the Products caused
injury or death to a person or damage to property; except to the extent such
Indemnified Claims arise from Abbott's negligence, willful misconduct or breach
of this Agreement in which event Abbott shall indemnify MTI (including its
Affiliates, directors, officers, employees and shareholders) from such claims.

     12.3 LIMITATIONS.  Each party's obligation to indemnify the other party is
contingent upon the party seeking indemnification (i) promptly notifying the
indemnifying party of such claim and (ii) cooperating with the indemnifying
party in the defense thereof, of which the indemnifying party shall have control
at the indemnifying party's expense.  Notwithstanding the above, the party
seeking indemnification shall have the right but not the obligation, at its own
expense, to participate in any such defense.

     12.4 INFRINGEMENTS.  If a claim of patent or other proprietary right
infringement is made by a third party with respect to a Product, then MTI, at
its option, shall (i) obtain for Abbott the right to continue to market and
distribute the Product at MTI's own expense, (ii) replace the Product with a
functionally-equivalent non-infringing Product, or (iii) modify the Product so
that it becomes non-infringing, so long as the functionality of the Product is
not adversely affected.  If MTI is unable to accomplish any of the foregoing
within one hundred eighty (180) days of the initial claim of infringement, MTI
shall grant Abbott a full refund of Costs paid by Abbott to MTI for all affected
Products and accept return of them, and the parties shall remove all such
affected Products from the Forecast for the remainder of the Term.

13.  LIMITATION OF LIABILITY.  EXCEPT FOR THE INDEMNIFICATION OBLIGATIONS UNDER
SECTION 12, NEITHER PARTY SHALL, BY REASON OF THE TERMINATION OF THIS AGREEMENT
OR OTHERWISE, BE LIABLE TO THE OTHER PARTY FOR ANY CONSEQUENTIAL, SPECIAL,
INCIDENTAL, OR OTHER DAMAGES (INCLUDING WITHOUT LIMITATION LOSS OF PROFIT)
WHETHER OR NOT ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

14.  TERM AND TERMINATION



     14.1 INITIAL TERM AND RENEWAL.  The Initial Term shall commence as of the
Effective Date and shall continue for the remainder of calendar year 1998 and
for ten (10) full calendar years thereafter, unless terminated earlier pursuant
to this Section 14 and subject to the provisions of Section 14.5.  The Initial
Term may be extended pursuant to this Section14.1 and/or Section15.5.

          14.1.1   EXTENSION BY MUTUAL AGREEMENT.  During the Term, the parties
may negotiate and mutually agree to extend the Term, whether for renewal periods
or for a fixed period.

          14.1.2   EXTENSION BY ABBOTT.  Abbott may extend the Term for a five
(5) year extension for each five (5) full calendar year period in which Abbott
attains  *  ( * ) of the Aggregate Sales Forecast (which shall mean the sum of
all individual Product Line Forecasts in any given calendar year) in at least
three (3) of the five (5) calendar years of the period.  The five (5) full
calendar year periods to which this provision is applicable shall include the
first full five (5) calendar years of the Initial Term (i.e., 1999-2003), the
second full five (5) calendar years of the Initial Term (i.e., 2004-2008), and,
as applicable, any additional five (5) full calendar year extensions if Abbott
extends the Term pursuant to this Section14.1.2 (i.e., 2009-2013, etc.).  Abbott
may exercise this extension upon written notice to MTI, which notice shall be
given no later than ninety (90) days after the end of each applicable five (5)
calendar year period.

     14.2 TERMINATION BY ABBOTT.  Abbott may terminate this Agreement at any
time upon one hundred and eighty (180) days written notice to MTI.

     14.3 TERMINATION BY MTI.   MTI may terminate this Agreement upon twelve
(12) months written notice to Abbott if Abbott fails to attain  *  (  *  ) of
the Aggregate Sales Forecast in at least three (3) of the first five (5) full
calendar years of the Initial Term (as per Exhibit2); provided, however, that
within ninety (90) days of the conclusion of any of the first five (5) calendar
years of the Agreement in which Abbott has not attained   *   (  * ) of the
Aggregate Sales Forecast, Abbott may, at its option, purchase additional Product
from MTI at the appropriate Cost and pay MTI the appropriate commission on such
purchases necessary to compensate for the shortfall between   *  (  *  ) of the
Aggregate Sales Forecast and actual Net Sales of Products in such year.  If
Abbott exercises such option for any calendar year, Abbott shall be deemed to
have attained  *  ( * ) of the Aggregate Sales Forecast for such year.

     14.4 TERMINATION BASED ON CHANGE OF CONTROL EVENT.  MTI or MTI's Successor
may terminate this Agreement for a Change of Control Event affecting MTI upon
ninety (90) days prior written notice to Abbott.  Termination subsequent to a
Change of Control Event shall occur by one of the following two mechanisms:



          14.4.1  ABBOTT BUYOUT OF PRODUCT LINES.  For a period of ninety (90)
days following Abbott's receipt of notice from MTI of a Change in Control Event,
the parties shall discuss Abbott's potential buyout of the Product Lines.  Upon
mutual agreement of Abbott and MTI's Successor, Abbott shall purchase all of the
pertinent manufacturing assets (tooling, assembly and packaging equipment,
manufacturing know-how and specifications) for the Products and all intellectual
property rights (patents, additional commercial know-how and the MTI Trademarks)
for the Products in the Field and in the Territory from MTI's Successor for a
price of  *  (  *  )   *   for the most recent full calendar year prior to the
Change of Control Event.

          14.4.2  MTI'S SUCCESSOR BUYOUT OF AGREEMENT.  In the event that
Abbott and MTI's Successor do not agree to proceed with the Abbott buyout of
Product Lines pursuant to Section14.4.1 within ninety (90) days, MTI 's
Successor may terminate this Agreement, and Abbott shall thereby relinquish all
distribution rights under this Agreement, upon one hundred and eighty (180) days
prior written notice, conditioned upon payment of a "Termination Fee" to Abbott.
The Termination Fee shall be calculated and payable over a five (5) year period
as follows:

AMOUNT PAYABLE AS A % OF ABBOTT'S NET SALES IN YEAR AFTER 12 MONTHS PRECEDING EFFECTIVE EFFECTIVE DATE OF TERMINATION DATE OF TERMINATION - ----------------------------- ---------------------------------------------- Year 1 * Year 2 * Year 3 * Year 4 * Year 5 *
Such amounts shall be payable by MTI's Successor to Abbott once annually on the anniversary of the effective date of termination for a period of five (5) years following termination of this Agreement. Following an MTI Change of Control Event, if MTI's Successor fails to notify Abbott of its intention to terminate this Agreement within ninety (90) days of such MTI Change of Control Event, the Agreement shall remain in effect, provided that if MTI ceases to exist as a corporate entity, MTI's Successor has taken assignment of and assumed all rights and obligations of MTI under the terms and conditions of the Agreement for the remainder of the Term. 14.4.3 TERMINATION BY MTI FOR IMPASSE OVER FORECASTS. Additionally, if the Initial Term is extended pursuant to Sections14.1.1 or 14.1.2 and the parties are unable to reach agreement for a Forecast for any calendar year beyond the Initial Term, then MTI may terminate this Agreement, and Abbott shall thereby relinquish all distribution rights under this Agreement, upon one hundred and eighty (180) days written notice of an unresolvable impasse from MTI to Abbott, conditioned upon payment of a Termination Fee calculated as set forth in Section14.4.2. Such amounts shall be payable by MTI to Abbott once annually on the anniversary of the effective date of termination for a period of five (5) years following termination of this Agreement. 14.4.4 TERMINATION FOR CAUSE. Either party may terminate this Agreement by giving the other party ninety (90) days written notice of such termination if the other party materially breaches or defaults in any of the material terms or conditions of this Agreement, the Note Agreement, the Credit Agreement or the Security Agreement and fails to cure such breach or default within ninety (90) days of receiving notice thereof. 14.5 THE EFFECT OF TERMINATION 14.5.1 DELIVERY OF PREVIOUSLY ORDERED PRODUCTS. Upon any termination of this Agreement by MTI, Abbott shall be entitled to have delivered the Products ordered prior to termination. 14.5.2 DISPOSITION OF INVENTORY. Upon any termination of this Agreement, Abbott may, at its option, either sell all or any part of its remaining inventory of the Products to Customers or sell to MTI all or any part of Abbott's remaining inventory of the Products (excluding discontinued and demonstration units). MTI shall repurchase all of the Products that Abbott decides to sell to MTI. Abbott must exercise the right to resell to MTI within sixty (60) days after termination of this Agreement. The price for such inventory shall be the Cost paid by Abbott to MTI for such Products, plus Abbott's shipping and handling costs. 14.5.3 SURVIVAL. Sections2.2, 4.8, 6.1, 6.2, 7.4, 8.1-8.4, 9.1, 9.2, 10.1-10.6, 11.2, 12.1-12.4, 13, 14.4, 14.5, 15.1 and 15.4-15.11 shall survive any termination of this Agreement. 15. GENERAL PROVISIONS 15.1 NO WAIVER. The failure of either party to enforce at any time or for any period any of the provisions of this Agreement shall not be construed to be waiver of those provisions or of the right of that party thereafter to enforce each and every provision hereof. 15.2 ASSIGNMENT. Except as otherwise provided herein, this Agreement shall not be assignable by either party without the prior written consent of the other party. Any attempted assignment not otherwise permitted herein shall be void. The provisions hereof shall be binding upon and inure to the benefit of the parties, their successors and permitted assigns. 15.3 NOTICES. Any notice, report or statement to either party required or permitted under this Agreement shall be in writing and shall be sent by certified mail, return receipt requested, postage prepaid, or by facsimile transmission with confirmation sent by certified mail as above, or by courier, such as Federal Express, DHL or the like, with confirmation of receipt by signature requested, directed to the other party at its mailing address set forth below, or to such other mailing address as the party may from time to time designate by prior written notice in accordance herewith. Any such notice, report or statement sent in accordance with this Section15.3 shall be deemed duly given upon receipt. 15.4 GOVERNING LAW AND DISPUTE RESOLUTION. This Agreement (and any other documents referred to herein) shall be construed in accordance with the laws of the State of California without reference to choice of law principles, as to all matters, including, but not limited to, matters of validity, construction, effect or performance. Any disputes between the parties relating to this Agreement that cannot be resolved amicably shall be resolved by binding Alternative Dispute Resolution in accordance with the attached Exhibit4. 15.5 FORCE MAJEURE. The parties shall not be liable for any delay or failure of obligations under this Agreement, in whole or in part, for any causes beyond the reasonable control of the parties, including, but not limited to, acts of God, war, riot, civil disturbances, strikes, lockouts or other labor disputes, accident of transportation or other force majeure. If MTI is unable to supply to Abbott any of the Products for any period of time, then MTI shall immediately notify Abbott of such inability, stating the reasons therefor and the estimated time of the delay and the Forecasts shall be adjusted accordingly by mutual written agreement. In such event, and upon Abbott's request, the Term shall be extended for a period equal to the period of time in which MTI is unable to supply Products to Abbott. 15.6 TITLES OF SECTIONS. The titles of the various sections of this Agreement are used for convenience of reference only and are not intended to and shall not in any way enlarge or diminish the rights or obligations of the parties or affect the meaning or construction of this document. 15.7 INVESTIGATION; JOINT PREPARATION. Each party acknowledges that it has had adequate opportunity to make whatever investigation or inquiry it deems necessary or desirable in connection with the subject matter of this Agreement prior to the execution hereof. Each party further acknowledges that it has read and understands each provision of this Agreement. This Agreement has been prepared jointly by the parties and shall not be strictly construed against either party, it being agreed that each party has had an opportunity to consult with counsel of its own choosing regarding the term and conditions of this Agreement. 15.8 BINDING EFFECT. This Agreement shall be binding upon and inure to the benefits of the parties hereto and, and their respective successor and permitted assigns. 15.9 INTEGRATION/MODIFICATION/ENTIRE AGREEMENT. This Agreement, together with the attached Exhibits and the Note Agreement, sets forth the entire agreement and understanding between the parties as to the subject matter hereof, and supersedes, integrates and merges all prior discussions, correspondence, negotiations, understandings or agreements. This Agreement may not be altered, amended, modified or otherwise changed in any way except by a written instrument, which specifically identifies the intended alteration, amendment, modification or other change, clearly expresses the intention to so change this Agreement, and is signed by an authorized representative of each of the parties. 15.10 COUNTERPARTS. This Agreement may be executed in two or more counterparts, each of which when executed shall be deemed an original, and all of which together shall constitute one and the same instrument. 15.11 SEVERABILITY. If any provision, or portion thereof, of this Agreement shall be held to be invalid, illegal, void or otherwise unenforceable, such provision, or portion thereof, shall be amended to achieve as nearly as possible the same economic effect as the original provision to the fullest extent permitted by applicable law, and the validity, legality and enforceability of the remainder of the Agreement will remain in full force and effect. IN WITNESS WHEREOF, the parties have caused this Agreement to be executed as of the Effective Date. MICRO THERAPEUTICS, INC. ABBOTT LABORATORIES By: By: Title: Title: Date: Date: EXHIBIT 1 LIST OF PRODUCTS FROM PRODUCT CATALOGUE (DOMESTIC PRICE LIST) VALVED INFUSION CATHETERS CURRENT EXP. 18 MONTHS (36 MONTH EXPIRATION PENDING, SEPTEMBER 1998) CRAGG-MCNAMARA-Registered Trademark- VALVED INFUSION CATHETERS
Model # Diameter (F) Usable Length (Cm) Infusion Length (Cm) Max. Guidewire (In.) 201-0236 4 40 5 .035 201-0237 4 40 10 .035 201-0238 4 40 20 .035 201-0230 4 65 5 .035 201-0232 4 65 10 .035 201-0234 4 65 20 .035 201-0231 4 100 5 .035 201-0233 4 100 10 .035 201-0235 4 100 20 .035 201-0239 4 135 5 .035 201-0240 4 135 10 .035 201-0241 4 135 20 .035 201-0216 5 40 5 .038 201-0217 5 40 10 .038 201-0218 5 40 20 .038 201-0210 5 65 5 .038 201-0212 5 65 10 .038 201-0214 5 65 20 .038 201-0211 5 100 5 .038 201-0213 5 100 10 .038 201-0215 5 100 20 .038 201-0227 5 100 30 .038 201-0228 5 100 40 .038 201-0229 5 100 50 .038 201-0219 5 135 5 .038 201-0220 5 135 10 .038 201-0221 5 135 20 .038 201-0222 5 135 30 .038 201-0223 5 135 40 .038 201-0224 5 135 50 .038
FOCUSED-TM- VALVED INFUSION CATHETERS CURRENT EXP. 18 MONTHS (36 MONTH EXPIRATION PENDING, SEPTEMBER 1998)
Model # Diameter (F) Usable Length (Cm) Infusion Length (Cm) Max. Guidewire (In.) 201-0225 5 65 1 .038 201-0226 5 100 1 .038
PERIPHERAL MICRO CATHETERS CURRENT EXP. 12 MONTHS (36 MONTH EXPIRATION PENDING, SEPTEMBER 1998) MICROMEWI-TM- SIDEHOLE INFUSION CATHETERS
Model # Diameter (F) Usable Length (Cm) Infusion Length (Cm) Max. Guidewire (In.) 201-0120 2.9 150 5 .018 201-0121 2.9 150 10 .018 201-0122 2.9 40 5 .018 201-0124 2.9 180 5 .018 201-0125 2.9 180 10 .018
MICRO PATENCY-TM- ENDHOLE INFUSION CATHETERS EXP. 5 YEARS
Model # Diameter (F) Usable Length (Cm) Infusion Length (Cm) Max. Guidewire (In.) 201-5020 2.9 40 Endhole .018 201-5021 2.9 100 Endhold .018 201-5022 2.9 150 Endhole .018
SIDEHOLE INFUSION CATHETERS CURRENT EXP. 18 MONTHS (36 MONTH EXPIRATION PENDING, SEPTEMBER 1998) MEWI-5-TM- SIDEHOLE INFUSION CATHETERS
Model # Diameter (F) Usable Length (Cm) Infusion Length (Cm) Max. Guidewire (In.) 201-0150 5 40 5 .035 201-0151 5 40 10 .035 201-0152 5 40 15 .035 201-0153 5 65 5 .035 201-0154 5 65 10 .035 201-0155 5 65 15 .035 201-0156 5 100 5 .035 201-0157 5 100 10 .035 201-0158 5 100 15 .035 201-0160 5 40 5 .038 201-0161 5 40 10 .038 201-0162 5 40 15 .038 201-0163 5 65 5 .038 201-0164 5 65 10 .038 201-0165 5 65 15 .038 201-0166 5 100 5 .038 201-0167 5 100 10 .038 201-0168 5 100 15 .038
MECHANICAL THROMBOLYSIS CRAGG THROMBOLYTIC BRUSH-TM- EXP. 18 MONTHS
Model # Catheter Diameter (F) Usable Length (Cm) Infusion Length (Cm) Brush Diameter (mm) 202-0101 6 65 Endhole 6
Contents: A System contains one Brush Catheter and one Brush Motor Drive Unit CASTANEDA OVER-THE-WIRE BRUSH-TM- EXP. 18 MONTHS
Catheter Model # Diameter (F) Usable Length Infusion Length Brush Diameter (Cm) (Cm) (mm) 202-0107 6 65 Endhole & Sidehole 6
Max Guidewire: .035 Contents: A System contains one Brush Catheter and one Brush Motor Drive Unit ACCESSORIES INTRODUCER SHEATHS EXP. 5 YEARS
Model # Size (F) Sheath Length (Cm) 203-6001-P10 6 5.5 203-6002-P10 5 40 Contents Per Pack (all models) 1-Hemostasis value with hi-flow sideport and removable 3-way stopcock 1-radiopaque sheath 1-vessel dilator
PULSE-SPRAY ACCESSORY PACK EXP. 2001
Model # 203-9000-P5 Contents Per Pack (all models): 1-dual check valve 1-1cc luer lock syringe 1-20cc luer lock syringe
INFUSION WIRES EXP. 18 MONTHS PROSTREAM SIDEHOLE INFUSION WIRES
Model # Diameter (In.) Usable Length (Cm) Infusion Length (Cm) Max. Guidewire (In.) 201-0410 .035 145 3 N/A 201-0411 .035 145 6 N/A 201-0412 .035 145 9 N/A 201-0413 .035 145 12 N/A 201-0414 .035 175 3 N/A 201-0415 .035 175 6 N/A 201-0416 .035 175 9 N/A 201-0417 .035 175 12 N/A 201-0610 .035 145 Endhole N/A 201-0611 .038 145 Endhole N/A
EXHIBIT 2 NET SALES FORECAST FIVE (5) YEAR ANNUAL NET SALES FORECAST (NET SALES IN THOUSANDS OF DOLLARS)
1998 1999 2000 2001 2002 2003 NET SALES - THROMBOLYTIC BRUSHES# * * * * * * NET SALES - INFUSION CATHETERS# * * * * * * NET SALES - INFUSION GUIDEWIRES# * * * * * * NET SALES - PERIPHERAL MICRO CATHS# * * * * * * NET SALES - ACCESSORIES# * * * * * * TOTAL * * * * * *
# OR EQUIVALENT PRODUCTS EXHIBIT 2 (cont) TWELVE (12) MONTH MONTHLY NET SALES FORECAST (NET SALES IN THOUSANDS OF DOLLARS)
OCT '98 NOV-99 DEC-98 JAN-99 FEB-99 MAR-99 APR-99 MAY-99 JUN-99 JUL-99 AUG-99 SEP-99 NET SALES - THROMBOLYTIC BRUSHES * * * * * * * * * * * * NET SALES - INFUSION CATHETERS * * * * * * * * * * * * NET SALES - INFUSION GUIDEWIRES * * * * * * * * * * * * NET SALES - PERIPHERAL MICRO CATHS * * * * * * * * * * * * NET SALES - ACCESSORIES * * * * * * * * * * * * * * * * * * * * * * * *
EXHIBIT 3 POST-MARKET CLINICAL DEVELOPMENT PROGRAM Pursuant to Section 4.1.5, the following represents the Clinical Development program: I. * II. * III. * IV. * EXHIBIT 4 ADR (ALTERNATIVE DISPUTE RESOLUTION) The parties recognize that a bona fide dispute as to certain matters may arise from time to time during the term of this Agreement which relates to either party's rights and/or obligations. To have such a dispute resolved by this Alternative Dispute Resolution ("ADR") provision, a party first must send written notice of the dispute to the other party for attempted resolution by good faith negotiations between their respective presidents (or their equivalents) of the affected subsidiaries, divisions, or business units within twenty-eight (28) days after such notice is received (all references to "days" in this ADR provision are to calendar days). If the matter has not been resolved within twenty-eight (28) days of the notice of dispute, or if the parties fail to meet within such twenty-eight (28) days, either party may initiate an ADR proceeding as provided herein. The parties shall have the right to be represented by counsel in such a proceeding. 1. To begin an ADR proceeding, a party shall provide written notice to the other party of the issues to be resolved by ADR. Within fourteen (14) days after its receipt of such notice, the other party may, by written notice to the party initiating the ADR, add additional issues to be resolved within the same ADR. 2. Within twenty-one (21) days following receipt of the original ADR notice, the parties shall select a mutually acceptable neutral to preside in the resolution of any disputes in this ADR proceeding. If the parties are unable to agree on a mutually acceptable neutral within such period, either party may request the President of the CPR Institute for Dispute Resolution ("CPR"), 366 Madison Avenue, 14th Floor, New York, New York 10017, to select a neutral pursuant to the following procedures: (a) The CPR shall submit to the parties a list of not less than five (5) candidates within fourteen (14) days after receipt of the request, along with a CURRICULUM VITAE for each candidate. No candidate shall be an employee, director, or shareholder of either party or any of their subsidiaries or affiliates. (b) Such list shall include a statement of disclosure by each candidate of any circumstances likely to affect his or her impartiality. (c) Each party shall number the candidates in order of preference (with the number one (1) signifying the greatest preference) and shall deliver the list to the CPR within seven (7) days following receipt of the list of candidates. If a party believes a conflict of interest exists regarding any of the candidates, that party shall provide a written explanation of the conflict to the CPR along with its list showing its order of preference for the candidates. Any party failing to return a list of preferences on time shall be deemed to have no order of preference. (d) If the parties collectively have identified fewer than three (3) candidates deemed to have conflicts, the CPR immediately shall designate as the neutral the candidate for whom the parties collectively have indicated the greatest preference. If a tie should result between two candidates, the CPR may designate either candidate. If the parties collectively have identified three (3) or more candidates deemed to have conflicts, the CPR shall review the explanations regarding conflicts and, in its sole discretion, may either (i) immediately designate as the neutral the candidate for whom the parties collectively have indicated the greatest preference, or (ii) issue a new list of not less than five (5) candidates, in which case the procedures set forth in subparagraphs 2(a) - 2(d) shall be repeated. 3. No earlier than twenty-eight (28) days or later than fifty-six (56) days after selection, the neutral shall hold a hearing to resolve each of the issues identified by the parties. The ADR proceeding shall take place at a location in the State of California agreed upon by the parties. If the parties cannot agree, the neutral shall designate a location in the State of California other than the principal place of business of either party or any of their subsidiaries or affiliates. 4. At least seven (7) days prior to the hearing, each party shall submit the following to the other party and the neutral: (a) a copy of all exhibits on which such party intends to rely in any oral or written presentation to the neutral; (b) a list of any witnesses such party intends to call at the hearing, and a short summary of the anticipated testimony of each witness; (c) a proposed ruling on each issue to be resolved, together with a request for a specific damage award or other remedy for each issue. The proposed rulings and remedies shall not contain any recitation of the facts or any legal arguments and shall not exceed one (1) page per issue. (d) a brief in support of such party's proposed rulings and remedies, provided that the brief shall not exceed twenty (20) pages. This page limitation shall apply regardless of the number of issues raised in the ADR proceeding. Except as expressly set forth in subparagraphs 4(a) - 4(d), no discovery shall be required or permitted by any means, including depositions, interrogatories, requests for admissions, or production of documents. 5. The hearing shall be conducted on two (2) consecutive days and shall be governed by the following rules: (a) Each party shall be entitled to five (5) hours of hearing time to present its case. The neutral shall determine whether each party has had the five (5) hours to which it is entitled. (b) Each party shall be entitled, but not required, to make an opening statement, to present regular and rebuttal testimony, documents or other evidence, to cross-examine witnesses, and to make a closing argument. Cross-examination of witnesses shall occur immediately after their direct testimony, and cross-examination time shall be charged against the party conducting the cross-examination. (c) The party initiating the ADR shall begin the hearing and, if it chooses to make an opening statement, shall address not only issues it raised but also any issues raised by the responding party. The responding party, if it chooses to make an opening statement, also shall address all issues raised in the ADR. Thereafter, the presentation of regular and rebuttal testimony and documents, other evidence, and closing arguments shall proceed in the same sequence. (d) Except when testifying, witnesses shall be excluded from the hearing until closing arguments. (e) Settlement negotiations, including any statements made therein, shall not be admissible under any circumstances. Affidavits prepared for purposes of the ADR hearing also shall not be admissible. As to all other matters, the neutral shall have sole discretion regarding the admissibility of any evidence. 6. Within seven (7) days following completion of the hearing, each party may submit to the other party and the neutral a post-hearing brief in support of its proposed rulings and remedies, provided that such brief shall not contain or discuss any new evidence and shall not exceed ten (10) pages. This page limitation shall apply regardless of the number of issues raised in the ADR proceeding. 7. The neutral shall rule on each disputed issue within fourteen (14) days following completion of the hearing. Such ruling shall adopt in its entirety the proposed ruling and remedy of one of the parties on each disputed issue but may adopt one party's proposed rulings and remedies on some issues and the other party's proposed rulings and remedies on other issues. The neutral shall not issue any written opinion or otherwise explain the basis of the ruling. 8. The neutral shall be paid a reasonable fee plus expenses. These fees and expenses, along with the reasonable legal fees and expenses of the prevailing party (including all expert witness fees and expenses), the fees and expenses of a court reporter, and any expenses for a hearing room, shall be paid as follows: (a) If the neutral rules in favor of one party on all disputed issues in the ADR, the losing party shall pay 100% of such fees and expenses. (b) If the neutral rules in favor of one party on some issues and the other party on other issues, the neutral shall issue with the rulings a written determination as to how such fees and expenses shall be allocated between the parties. The neutral shall allocate fees and expenses in a way that bears a reasonable relationship to the outcome of the ADR, with the party prevailing on more issues, or on issues of greater value or gravity, recovering a relatively larger share of its legal fees and expenses. 9. The rulings of the neutral and the allocation of fees and expenses shall be binding, non-reviewable, and non-appealable, and may be entered as a final judgment in any court having jurisdiction. 10. Except as provided in paragraph 9 or as required by law, the existence of the dispute, any settlement negotiations, the ADR hearing, any submissions (including exhibits, testimony, proposed rulings, and briefs), and the rulings shall be deemed Confidential Information. The neutral shall have the authority to impose sanctions for unauthorized disclosure of Confidential Information.

                                     EXHIBIT 4

          PORTIONS OF THIS DOCUMENT HAVE BEEN OMITTED (DESIGNATED BY AN
           ASTERISK (*) ) AND FILED SEPARATELY WITH THE SECURITIES AND
           EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL
                          TREATMENT DATED AUGUST 28, 1998



                                 CREDIT AGREEMENT

THIS CREDIT AGREEMENT (this "Agreement"), is entered into as of August 12,
     1998, by and between ABBOTT LABORATORIES, an Illinois corporation
     ("Abbott"), as lender, and MICRO THERAPEUTICS, INC., a Delaware corporation
     (the "Company"), as borrower.

                                W I T N E S S E T H:

WHEREAS, Abbott has purchased from the Company, and the Company has sold to
     Abbott, a certain 5% Convertible Subordinated Note, due August 19, 2003, in
     the principal aggregate amount of Five Million Dollars ($5,000,000) (the
     "Note") pursuant to the terms and conditions of that certain Convertible
     Subordinated Note Agreement, dated as of August12, 1998, by and between
     Abbott and the Company (the "Note Agreement"); and

WHEREAS, pursuant to Section6 of the Note Agreement, the Company and Abbott
     agreed to enter into this Credit Agreement, which provides that Abbott, as
     lender, shall loan to the Company, as borrower at the Company's request, an
     amount not to exceed an aggregate of Five Million Dollars ($5,000,000).

NOW, THEREFORE, in consideration of the premises and of the mutual provisions,
     agreements and covenants contained herein, the Company and Abbott hereby 
     agree as follows:

1.   DEFINITIONS.  In addition to any terms defined elsewhere in this Agreement,
     the following terms have the meanings indicated for purposes of this
     Agreement (such definitions being equally applicable to the singular and
     plural forms of the defined term):

"Acceleration" means that the Loan (i)shall not have been paid at the Maturity
     Date, or (ii)shall have become due and payable prior to its stated maturity
     pursuant to Section7.2 hereof.

"Disbursement Date" means any date on or prior to July31, 1999 on which a
     disbursement of the Loan is made.  Each Disbursement Date shall be on the
     date designated in a written notice from the Company to Abbott; provided,
     however, that



(a)Abbott shall not be required to make any disbursement if the conditions
     hereto and the Note Agreement are not satisfied, and (b)Abbott shall in no
     event be required to make any disbursement after July 31, 1999.

"Maturity" means any date on which the Loan or any portion thereof becomes due
     and payable, whether as stated or by virtue of mandatory prepayment, by
     acceleration or otherwise.

"Maturity Date" means the fifth year anniversary of the first Disbursement Date.

"Obligations" means all loans, advances, debts, liabilities, obligations,
     covenants and duties owing to Abbott by the Company, of any kind or nature,
     present or future, whether or not evidenced by any note, guaranty or other
     instrument, arising under this Agreement.

Each accounting term not defined herein and each accounting term partly defined
     herein to the extent not defined shall have the meaning given to it under
     generally accepted accounting principles.

2.   LOAN.

2.1       PROCEDURE FOR LOAN.  Subject to all of the terms and conditions of
          this Agreement and the Note Agreement, Abbott agrees to make periodic
          loans (the "Loan") prior to July31, 1999 to the Company in the amount
          of up to Five Million Dollars ($5,000,000) to be governed by the terms
          and conditions of, and repaid in accordance with, this Agreement and
          the Note Agreement.  The Company shall provide Abbott with fifteen
          (15) business days (as defined in the Note Agreement) written notice
          of a requested disbursement.  Disbursement amounts shall be in
          multiples of One Million Dollars ($1,000,000).  Subject to the
          satisfaction of the terms and conditions set forth in this Agreement
          and the Note Agreement, Abbott shall disburse up to Five Million
          Dollars ($5,000,000) to the Company at the Company's request.  Amounts
          repaid may not be reborrowed.

2.2       INTEREST.

(a)            INTEREST.  The Loan shall bear interest from the date of
               disbursement on the unpaid principal amount thereof until the
               earlier of an Event of Default or the date upon which such amount
               shall become due and payable (whether upon Maturity, by
               Acceleration or otherwise) at a rate per annum equal to five
               percent (5%).

(b)            ACCRUAL AND COMPUTATION OF INTEREST.  Interest shall accrue daily
               and shall be computed on the basis of a year of 360 days for the
               actual number of days elapsed.

2.3       MAXIMUM INTEREST RATE.  Nothing in this Agreement shall require the



          Company to pay interest at a rate exceeding the maximum amount
          permitted by applicable law to be charged by Abbott.

2.4       REPAYMENT.

(a)            INTEREST PAYMENTS.  On the last day of each quarter payable in
               arrears on January 31, April 30, July 31 and October 31,
               commencing with the quarter of the first Disbursement Date until
               the Maturity Date, and on the Maturity Date, the Company shall
               pay Abbott all interest then accrued.

(b)            LOAN PAYMENT.  The Company shall repay the entire outstanding
               principal amount of the Loan in full on the Maturity Date.

(c)            OPTIONAL PREPAYMENT.  The Company may at any time prepay the
               entire outstanding principal amount of the Loan or any portion
               thereof without penalty.

2.5       POST-MATURITY INTEREST.  After the earlier of an Event of Default or
          Maturity (whether by Acceleration or otherwise) of the Loan, the Loan
          shall bear interest, payable on demand, at a rate per annum equal to
          ten percent (10%), subject to Section2.3 hereof.

2.6       CREDIT FACILITY NOTE.  The Loan made by Abbott pursuant hereto shall
          be evidenced by a credit facility note (the "Credit Facility Note") of
          the Company in the form of AnnexA hereto, payable to the order of
          Abbott on the Maturity Date in the principal amount of up to Five
          Million Dollars ($5,000,000) in accordance with Section2.1 hereof.
          The Company hereby authorizes Abbott to indicate upon a schedule
          attached to the Credit Facility Note all disbursements made by Abbott
          pursuant to this Agreement and all payments of principal and interest
          thereon.  Absent manifest error, such notations shall be presumptive
          as to the aggregate unpaid principal amount of the Loan, and interest
          due thereon, but the failure by Abbott to make such notations or the
          inaccuracy or incompleteness of any such notations shall not affect
          the obligations of the Company hereunder or under the Credit Facility
          Note.

2.7       PAYMENTS BY THE COMPANY.  All payments (including prepayments) to be
          made by the Company shall be made without set-off or counterclaim and
          shall be made to Abbott by wire transfer in United States dollars and
          in immediately available funds to the following Abbott account:   *
          for credit to Abbott Laboratories Account  *  (or to such other
          account as may be designated by written notice to the Company), no
          later than 12:00noon, Pacific time, of the business day on which
          payment is due.  Any payment which is received in Abbott's account
          later than 12:00noon, Pacific time, shall be deemed to have been
          received on the immediately succeeding 



          business day.  Whenever any payment hereunder shall be stated to be
          due on a day other than a business day, such payment shall be made
          on the next succeeding business day, and such extension of time shall
          in such case be included in the computation of interest.

3.   CONVERSION OF CREDIT FACILITY NOTE.

3.1       CONVERSION PRIVILEGE AND CONVERSION PRICE.

(a)            Subject to and upon compliance with the provisions of this
               Section 3, at the option of the Company at any time and at the
               Company's sole discretion without regard to the price of the
               Common Stock (except as set forth in Section3.1(b)) and the
               Conversion Price (as defined herein), the Credit Facility Note or
               any portion of the principal amount thereof which is One Million
               Dollars ($1,000,000) or an integral multiple of One Million
               Dollars ($1,000,000) (a "$1,000,000 Integral Multiple") may be
               converted at the principal amount thereof, or of such portion
               thereof, into fully paid and nonassessable shares of Common Stock
               at the Conversion Price, in effect at the time of conversion.
               Such conversion right shall expire at the close of business on
               the Maturity Date.  The price at which shares of Common Stock
               shall be delivered upon conversion (the "Conversion Price") shall
               be initially  *   of Common Stock, unless the Conversion Price
               shall be adjusted in certain instances as provided in this
               Section 3.

(b)            The Company shall not have the option to convert the Credit
               Facility Note into shares of Common Stock (i) to the extent that
               such shares of Common Stock, together with the shares of Common
               Stock then beneficially owned by Abbott, would exceed 19% of the
               then outstanding shares of Common Stock of the Company (giving
               effect to such issuance upon conversion to Abbott) or (ii) if the
               Fair Market Value of the Common Stock as of the date that written
               notice of conversion is provided to Abbott shall be less than * .

"Fair Market Value" of the Common Stock as of any date of determination
     means the arithmetic mean of the reported last sale price of the Common
     Stock regular way on each of the 20 trading days preceding such date of
     determination or, if no such sale takes place on any of such days, the
     average of the reported closing bid and asked prices regular way, in each
     case on the principal national securities exchange on which the security is
     listed or admitted to trading, or, if the security is not listed or
     admitted to trading on any national securities exchange, the closing sales
     prices, or, if there are no closing sales prices on any such days, the
     average of the closing bid and asked prices, in the Nasdaq Stock Market or
     other over-the-counter market as reported by the National Association of
     Securities Dealers Automated Quotation System, or, if not so reported, the
     fair market value of the security as estimated by a nationally recognized
     investment banking firm selected by Abbott and acceptable to 


     the Company in the exercise of its reasonable discretion, which estimate
     shall be prepared at the expense of the Company.

3.2       EXERCISE OF CONVERSION PRIVILEGE.  Upon receipt of written notice of
          conversion (pursuant to Section 8.1 hereof) in the form provided on
          the Credit Facility Note, Abbott shall immediately surrender the
          Credit Facility Note or any $1,000,000 Integral Multiple thereof duly
          endorsed or assigned to the Company or in blank, at any office or
          agency of the Company maintained for that purpose.  No payment or
          adjustment shall be made upon any conversion on account of any
          interest accrued on the Credit Facility Note surrendered for
          conversion or on account of any dividends on the Common Stock issued
          upon conversion.

The Credit Facility Note shall be deemed to have been converted immediately
     prior to the close of business on the day of mailing of the written notice
     of conversion (pursuant to Section8.1 hereof) by the Company, and at such
     time the rights of Abbott shall cease, and the Person or Persons entitled
     to receive the Common Stock issuable upon conversion shall be treated for
     all purposes as the record holder or holders of such Common Stock at such
     time.  As promptly as practicable on or after the conversion date, the
     Company shall issue and shall deliver at such office or agency a
     certificate or certificates for the number of duly authorized, validly
     issued, fully paid and nonassessable shares of Common Stock issuable upon
     conversion, together with payment in lieu of any fraction of a share, as
     provided in Section 3.3 hereof.

In the case of any Credit Facility Note which is converted in part only, upon
     such conversion, the Company shall execute and deliver to Abbott, at the
     expense of the Company, a new Credit Facility Note or Credit Facility 
     Notes of authorized denominations in the aggregate principal amount equal
     to the unconverted portion of the principal amount of the Credit Facility
     Note.

3.3       FRACTIONS OF SHARES.  No fractional shares of Common Stock shall be
          issued upon conversion of the Credit Facility Note or $1,000,000
          Integral Multiple thereof.  Instead of any fractional share of Common
          Stock which would otherwise be issuable upon the conversion of the
          Credit Facility Note or the $1,000,000 Integral Multiple thereof, the
          Company shall pay a cash adjustment in respect of such fraction of a
          share of Common Stock in an amount equal to the remaining amount which
          is not converted by reason of this Section 3.3.

3.4       ADJUSTMENT OF CONVERSION PRICE.

(a)            In case the Company shall pay or make a dividend or other
               distribution on any class of capital stock of the Company in
               Common Stock, the Conversion Price in effect at the opening of
               business on the day following the date fixed for the
               determination of stockholders entitled to receive such dividend
               or other distribution shall be reduced 



               by multiplying such Conversion Price by a fraction the numerator
               of which shall be the number of shares of Common Stock 
               outstanding at the close of business on the date fixed for such
               determination and the denominator shall be the sum of such number
               of shares and the total number of shares constituting such 
               dividend or other distribution, such reduction to become 
               effective immediately after the opening of business on the day
               following the date fixed for such determination.  For the 
               purposes of this Section 3.4(a), the number of shares of Common
               Stock at any time outstanding shall not include shares held in
               the treasury of the Company but shall include shares issuable
               in respect of scrip certificates issued in lieu of fractions of
               shares of Common Stock.  The Company will not pay any dividend
               or make any distribution on shares of Common Stock held in the
               treasury of the Company.

(b)            In case the Company shall issue rights, options or warrants to
               all holders of its Common Stock (not being available on an
               equivalent basis to Abbott upon conversion) entitling them to
               subscribe for or purchase shares of Common Stock at a price per
               share less than the current market price per share of the Common
               Stock (determined as provided in Section 3.4(h) hereof) on the
               date fixed for the determination of stockholders entitled to
               receive such rights, options or warrants (other than pursuant to
               a dividend reinvestment plan), the Conversion Price in effect at
               the opening of business on the day following the date fixed for
               such determination shall be reduced to a price (calculated to the
               nearest cent) determined by multiplying such Conversion Price by
               a fraction the numerator of which shall be the number of shares
               of Common Stock outstanding at the close of business on the date
               fixed for such determination plus the number of shares of Common
               Stock which the aggregate consideration received by the Company
               for the total number of additional shares of Common Stock so
               offered for subscription or purchase would purchase at such
               Conversion Price in effect immediately prior to the date fixed
               for such determination and the denominator of which shall be the
               number of shares of Common Stock outstanding at the close of
               business on the date fixed for such determination plus the number
               of shares of Common Stock so offered for subscription or
               purchase, such reduction to become effective immediately after
               the opening of business on the day following the date fixed for
               such determination.  For purposes of calculating the Conversion
               Price in this Section 3.4(b), the number of shares of Common
               Stock outstanding immediately prior to the date fixed for such
               determination of rights, options or warrants shall be calculated
               as if all shares had been fully converted into shares of Common
               Stock.  Also, for the purposes of this Section 3.4(b), the number
               of shares of Common Stock at any time outstanding shall not
               include shares held in the treasury of the 



               Company but shall include shares issuable in respect of scrip 
               certificates issued in lieu of fractions of shares of Common
               Stock.  The Company will not issue any rights, options or 
               warrants in respect of shares of Common Stock held in the 
               treasury of the Company.

(c)            In case outstanding shares of Common Stock shall be subdivided
               into a greater number of shares of Common Stock, the Conversion
               Price in effect at the opening of business on the day following
               the day upon which such subdivision becomes effective shall be
               proportionately reduced, and, conversely, in case outstanding
               shares of Common Stock shall each be combined into a smaller
               number of shares of Common Stock, the Conversion Price in effect
               at the opening of business on the day following the day upon
               which such combination becomes effective shall be proportionately
               increased, such reduction or increase, as the case may be, to
               become effective immediately after the opening of business on the
               day following the day upon which such subdivision or combination
               becomes effective.

(d)            In case the Company shall, by dividend or otherwise, distribute
               to all holders of its Common Stock evidences of its indebtedness
               or assets (including securities, but excluding any rights,
               options or warrants referred to in Section 3.4(b) hereof, any
               dividend or distribution paid exclusively in cash and any
               dividend or distribution referred to in Section 3.4), the
               Conversion Price shall be adjusted so that the same shall equal
               the price determined by multiplying the Conversion Price in
               effect immediately prior to the close of business on the date
               fixed for the determination of stockholders entitled to receive
               such distribution by a fraction the numerator of which shall be
               the current market price per share (determined as provided in
               Section 3.4(h)) of the Common Stock on the date fixed for such
               determination less the then fair market value (as determined by
               an independent majority of the Board of Directors, whose
               determination shall be conclusive and described in a board
               resolution) of the portion of the assets or evidences of
               indebtedness so distributed applicable to one share of Common
               Stock and the denominator shall be such current market price per
               share of the Common Stock, such adjustment to become effective
               immediately prior to the opening of business on the day following
               the date fixed for the determination of stockholders entitled to
               receive such distribution.  In any case in which this
               Section3.4(d) is applicable, Section 3.4(b) hereof shall not be
               applicable.

(e)            In case the Company shall, by dividend or otherwise, distribute
               to all holders of its Common Stock cash (excluding any cash that
               is distributed upon a merger or consolidation to which Section
               3.10 hereof applies or as part of a distribution referred to in
               paragraph (d) of this Section 3.4) in an aggregate amount that,
               combined together



               with (i) the aggregate amount of any other distributions to all
               holders of its Common Stock made exclusively in cash within the
               twelve (12) months preceding the date of payment of such 
               distribution and in respect of which no adjustment pursuant to
               this paragraph (e) has been made and (ii) the aggregate of any
               cash plus the fair market value (as determined by an 
               independent majority of the Board of Directors, whose 
               determination shall be conclusive and described in a Board
               Resolution) of consideration payable in respect of any tender
               offer by the Company or any of its Subsidiaries for all or any
               portion of the Common Stock concluded within the twelve (12)
               months preceding the date of payment of such distribution and in
               respect of which no adjustment pursuant to paragraph (f) of this
               Section 3.4 has been made, exceeds ten percent (10%) of the
               product of the current market price per share of the Common Stock
               on the date for the determination of holders of shares of Common
               Stock entitled to receive such distribution multiplied by the
               number of shares of Common Stock outstanding on such date, then,
               and in each such case, immediately after the close of business on
               such date for determination, the Conversion Price shall be
               reduced so that the same shall equal the price determined by
               multiplying the Conversion Price in effect immediately prior to
               the close of business on the date fixed for determination of the
               stockholders entitled to receive such distribution by a fraction
               (A) the numerator of which shall be equal to the current market
               price per share of the Common Stock (determined as provided in
               paragraph (h) of this Section 3.4) on the date fixed for such
               determination less an amount eual to the quotient of (x) the
               excess of such combined amount over such ten percent (10%) and
               (y) the number of shares of Common Stock outstanding on such date
               for determination and (B) the denominator of which shall be equal
               to the current market price per share of the Common Stock
               (determined as provided in paragraph (h) of this Section 3.4) on
               such date for determination.

(f)            In case a tender offer made by the Company or any Subsidiary for
               all or any portion of the Common Stock shall expire and such
               tender offer (as amended upon the expiration thereof) shall
               require the payment to stockholders (based on the acceptance (up
               to any maximum specified in the terms of the tender offer) of
               Purchased Shares (as defined herein)) of an aggregate
               consideration having a fair market value (as determined by an
               independent majority of the Board of Directors, whose
               determination shall be conclusive and described in a board
               resolution) that combined together with (i) the aggregate of the
               cash plus the fair market value (as determined by an independent
               majority of the Board of Directors, whose determination shall be
               conclusive and described in a board resolution), as of the
               expiration of such tender offer, of consideration payable in
               respect of



               any other tender offer, by the Company or any Subsidiary for 
               all or any portion of the Common Stock expiring within the 
               twelve (12) months preceding the expiration of such tender 
               offer and in respect of which no adjustment pursuant to this 
               paragraph (f) has been made and (ii) the aggregate amount of 
               any distributions to all holders of the Common Stock made 
               exclusively in cash within twelve (12) months preceding the 
               expiration of such tender offer and in respect of which no 
               adjustment pursuant to paragraph (e) of this Section 3.4 has 
               been made, exceeds ten percent (10%) of the product of the 
               current market price per share of the Common Stock (determined 
               as provided in paragraph (h) of this Section 3.4) as of the 
               last time (the "Expiration Time") tenders could have been made 
               pursuant to such tender offer (as it may be amended) 
               multiplied by the number of shares of Common Stock outstanding 
               (including any tendered shares) on the Expiration Time, then, 
               and in each such case, immediately prior to the opening of 
               business on the day after the date of the Expiration Time, the 
               Conversion Price shall be adjusted so that the same shall 
               equal the price determined by multiplyng the Conversion Price 
               in effect immediately prior to the close of business on the 
               date of the Expiration Time by a fraction (A) the numerator of 
               which shall be equal to (1) the product of (a) the current 
               market price per share of the Common Stock (determined as 
               provided in paragraph (h) of this Section 3.4) on the date of 
               the Expiration Time and (b) the number of shares of Common 
               Stock outstanding (including any tendered shares) on the 
               Expiration Time, less (2) the amount of cash plus the fair 
               market value (determined as aforesaid) of the aggregate 
               consideration payable to stockholders based on the acceptance 
               (up to any maximum specified in the terms of the tender offer) 
               of Purchased Shares, and (B) the denominator of which shall be 
               equal to the product of (1) the current market price per share 
               of the Common Stock (determined as provided in paragraph (h) 
               of this Section 3.4) as of the Expiration Time and (2) the 
               number of shares of Common Stock outstanding (including any 
               tendered shares) as of the Expiration Time less the number of 
               all shares validly tendered and not withdrawn as of the 
               Expiration Time (the shares deemed so accepted up to any such 
               maximum, being referred to as the "Purchased Shares").

(g)            The reclassification of Common Stock into securities including
               securities other than Common Stock (other than any
               reclassification upon a consolidation or merger to which Section
               3.10 hereof applies) shall be deemed to involve (i) a
               distribution of such securities other than Common Stock to all
               holders of Common Stock (and the effective date of such
               reclassification shall be deemed to be "the date fixed for the
               determination of stockholders entitled to receive such
               distribution" and the "date fixed for such determination" within
               the meaning of paragraph (d) of this Section 3.4), and (ii) a
               subdivision 



               or combination, as the case may be, of the number of shares of 
               Common Stock outstanding immediately prior to such 
               reclassification into the number of shares of Common Stock 
               outstanding immediately thereafter (and the effective date of 
               such reclassification shall be deemed to be "the day upon 
               which such subdivision becomes effective" or "the day upon 
               which such combination becomes effective," as the case may be, 
               and "the day upon which such subdivision or combination 
               becomes effective" within the meaning of paragraph (c) of this 
               Section 3.4).

(h)            For the purpose of any computation under paragraphs (d), (e) and
               (f) of this Section 3.4, the current market price per share of
               Common Stock on any date shall be deemed to be the average of the
               daily Closing Prices for the five (5) consecutive trading days
               selected by the Company commencing not more than twenty (20)
               trading days before, and ending not later than, the earlier of
               the day in question and the day before the "ex" date with respect
               to the issuance or distribution requiring such computation.  The
               "Closing Price" for each trading day shall be the reported last
               sale price regular way or, in case no such reported sale takes
               place on such day, the average of the reported closing bid and
               asked prices regular way, in either case on the principal
               national securities exchange on which the Common Stock is listed
               or admitted to trading or, if not listed or admitted to trading
               on any national securities exchange, on the National Association
               of Securities Dealers Automated Quotations system ("Nasdaq")
               National Market System ("Nasdaq National Market") or, if not
               listed or admitted to trading on Nasdaq National Market, on
               Nasdaq, or, if the Common Stock is not listed or admitted to
               trading on any national securities exchange or Nasdaq National
               Market or quoted on Nasdaq, the average of the closing bid and
               asked prices in the over-the-counter market as furnished by any
               New York Stock Exchange member firm selected from time to time by
               the Company for that purpose, or, if the Common Stock does not
               have any closing bid and asked prices in the over-the-counter
               market during the relevant period of time, the fair market value
               per share as determined by an independent majority of the Board
               of Directors as of the most recent available month-end determined
               pursuant to GAAP.  For purposes of this paragraph, the term "'ex'
               date," when used with respect to any issuance or distribution,
               shall mean the first date on which the Common Stock trades
               regular way on such exchange or in such market without the right
               to receive such issuance or distribution.

(i)            No adjustment in the Conversion Price shall be required unless
               such adjustment (plus any adjustments not previously made by
               reason of this paragraph (i)) would require an increase or
               decrease of at least one percent (1%) in such price; provided,
               however, that any



               adjustments which by reason of this paragraph (i) are not 
               required to be made shall be carried forward and taken into 
               account in any subsequent adjustment.  All calculations under
               this paragraph (i) shall be made to the nearest cent.

(j)            The Company may make such reductions in the Conversion Price, in
               addition to those required by paragraphs (a), (b), (c), (d), (e)
               and (f) of this Section 3.4, as it considers to be advisable in
               order to avoid or diminish any income tax to any holders of
               shares of Common Stock resulting from any dividend or
               distribution of stock or issuance of rights or warrants to
               purchase or subscribe for stock or from any event treated as such
               for federal income tax purposes or for any other reasons.  An
               independent majority of the Board of Directors shall have the
               power to resolve any ambiguity or correct any error in this
               Section 3.4 and its actions in so doing shall be final and
               conclusive.

3.5       NOTICE OF ADJUSTMENTS OF CONVERSION PRICE.  Whenever the Conversion
          Price is adjusted as herein provided:

(a)            the Company shall compute the adjusted Conversion Price in
               accordance with Section 3.4 hereof and shall prepare a
               certificate signed by the Chief Financial Officer of the Company
               setting forth the adjusted Conversion Price and showing in
               reasonable detail the facts upon which such adjustment is based,
               and such certificate shall forthwith be filed at the offices of
               the Company.

(b)            a notice stating that the Conversion Price has been adjusted and
               setting forth the adjusted Conversion Price shall forthwith be
               required, and as soon as practicable after it is required, such
               notice shall be mailed by the Company to the Holder in accordance
               with the terms of Section 8.1 herein.

3.6       NOTICE OF CERTAIN CORPORATE ACTION.  In case:

(a)            the Company shall declare a dividend (or any other distribution)
               on its Common Stock payable otherwise than in cash out of its
               earned surplus; or

(b)            the Company shall authorize the granting to the holders of its
               Common Stock of rights or warrants to subscribe for or purchase
               any shares of capital stock of any class or of any other rights;
               or

(c)            of any reclassification of the Common Stock of the Company (other
               than a subdivision or combination of its outstanding shares of
               Common Stock), or of any consolidation, merger or share exchange
               to which the Company is a party and for which approval of any



               stockholders of the Company is required, or of the sale or
               transfer of all or substantially all of the assets of the
               Company; or

(d)            of the voluntary or involuntary dissolution, liquidation or
               winding up of the Company; then the Company shall cause to be
               filed at the offices of the Company, and shall cause to be mailed
               to the Holder at its last addresses as it shall appear in the
               Note Register, at least twenty (20) days (or ten (10) days in any
               case specified in clause (a) or (b) of this Section 3.6) prior to
               the applicable record or effective date hereinafter specified, a
               notice stating (x) the date on which a record is to be taken for
               the purpose of such dividend, distribution, rights or warrants,
               or, if a record is not to be taken, the date as of which the
               holders of Common Stock of record to be entitled to such
               dividend, distribution, rights or warrants are to be determined,
               or (y) the date on which such reclassification, consolidation,
               merger, share exchange, sale, transfer, dissolution, liquidation
               or winding up is expected to become effective, and the date as of
               which it is expected that holders of Common Stock of record shall
               be entitled to exchange their shares of Common Stock for
               securities, cash or other property deliverable upon such
               reclassification, consolidation, merger, share exchange, sale,
               transfer, dissolution, liquidation or winding up.  Neither the
               failure to give such notice nor any defect therein shall affect
               the legality or validity of the proceedings described in clauses
               (a) through (d) of this Section 3.6.

3.7       COMPANY TO RESERVE COMMON STOCK.  The Company shall at all times
          reserve and keep available out of its authorized but unissued Common
          Stock, for the purpose of effecting the conversion of the Credit
          Facility Note, the full number of shares of Common Stock issuable upon
          the conversion of the entire Credit Facility Note.

3.8       TAXES ON CONVERSIONS.  The Company will pay any and all taxes that may
          be payable in respect of the issuance or delivery of shares of Common
          Stock on conversion of the Credit Facility Note pursuant hereto.  The
          Company shall not, however, be required to pay any tax which may be
          payable in respect of any transfer involved in the issuance and
          delivery of shares of Common Stock in a name other than that of Abbott
          and no such issuance or delivery shall be made unless and until the
          Person requesting such issuance has paid to the Company the amount of
          any such tax, or has established to the satisfaction of the Company
          that such tax has been paid.

3.9       COVENANT AS TO COMMON STOCK.  The Company covenants that all shares of
          Common Stock which may be issued upon conversion of the Credit
          Facility Note will upon issuance be fully paid and nonassessable and,
          except as provided in Section 3.8 hereof, the Company will pay all
          taxes, liens and charges with respect to the issue thereof.



3.10      PROVISIONS IN CASE OF CONSOLIDATION, MERGER OR SALE OF ASSETS.  In
          case of any Change of Control of the Company, the Company will notify
          Abbott at least thirty (30) days prior to the closing of the
          transaction that will effect the Change of Control, and the Company
          shall notify Abbott whether the Company elects to convert the Credit
          Facility Note in accordance with Section 3 hereof prior to the
          transaction or pay the Credit Facility Note and terminate this
          Agreement in accordance with Section 2 hereof.

3.11      TRANSFER AND EXCHANGE OF CREDIT FACILITY NOTE.  The Credit Facility
          Note may be freely transferred or assigned by Abbott without the
          consent of the Company.  Such transfer and assignment shall be made in
          accordance with applicable federal and state securities laws.  At any
          time and from time to time, upon not less than ten (10) days notice to
          that effect given by Abbott and, upon surrender of the Credit Facility
          Note at the Company's office by Abbott, the Company will deliver in
          exchange therefor, without expense to Abbott, except as set forth
          below, one Credit Facility Note for the same aggregate principal
          amount as the then unpaid principal amount of the Credit Facility Note
          so surrendered, provided such Credit Facility Note shall be in the
          amount of the full principal amount of the Credit Facility Note and
          there shall be no right to divide the Credit Facility Note, dated as
          of the date to which interest has been paid on the Credit Facility
          Note so surrendered or, if such surrender is prior to the payment of
          any interest thereon, then dated as of the date of issue, registered
          in the name of such Person as may be designated by Abbott, and
          otherwise of the same form and tenor as the Credit Facility Note so
          surrendered for exchange.  The Company may require the payment of a
          sum sufficient to cover any stamp tax or governmental charge imposed
          upon such exchange or transfer.

3.12      LOSS, THEFT, MUTILATION OR DESTRUCTION OF CREDIT FACILITY NOTE.  Upon
          receipt of evidence satisfactory to the Company of the loss, theft,
          mutilation or destruction of the Credit Facility Note, the Company
          will make and deliver without expense to Abbott thereof, a new Credit
          Facility Note, of like tenor, in lieu of such lost, stolen, mutilated
          or destroyed Credit Facility Note.

3.13      EXPENSES, STAMP TAX INDEMNITY.  The Company agrees to pay duplicating
          and printing costs and charges for shipping the Credit Facility Note,
          adequately insured to Abbott's home office or at such other place as
          Abbott may designate, and all reasonable expenses of Abbott
          (including, without limitation, the reasonable fees and expenses of
          any financial advisor to Abbott) relating to any proposed or actual
          amendment, waivers or consents pursuant to the provisions hereof,
          including, without limitation, any proposed or actual amendments,
          waivers, or consents resulting from any work-out, re-negotiations or
          restructuring relating to the performance by the Company of its
          obligations under this Agreement and the Credit Facility Note.  The
          Company also agrees that it will pay and hold Abbott harmless against
          any 



          and all liabilities with respect to stamp and other taxes, if any,
          which may be payable or which may be determined to be payable in
          connection with the execution and delivery of this Agreement or the
          Credit Facility Note, whether or not the Credit Facility Note is then
          outstanding.  The Company agrees to protect and indemnify Abbott
          against any liability for any and all brokerage fees and commissions
          payable or claimed to be payable to any Person (other than any Person
          engaged by a Purchaser) in connection with the transactions
          contemplated by this Agreement.

3.14      CANCELLATION OF CONVERTED CREDIT FACILITY NOTE.  The Credit Facility
          Note or $1,000,000 Integral Multiple portions thereof delivered for
          conversion shall be canceled by or at the direction of the Company.

4.   CONDITIONS PRECEDENT.

4.1       DISBURSEMENTS.  The obligation of Abbott to make any disbursement of
          the Loan shall be subject to the prior or contemporaneous satisfaction
          of each of the following conditions:

(a)            AUTHORIZATIONS.  Abbott shall have received such instruments or
               documents as Abbott may reasonably request relating to the
               existence and good standing of the Company or the authority for
               execution, delivery and performance of this Agreement, dated and
               in full force and effect on the Disbursement Date.

(b)            NO EXISTING DEFAULT.  No Event of Default (as defined in Section
               7.1) or event which, upon the lapse of time or the giving of
               notice or both, would constitute an Event of Default by the
               Company (an "Incipient Default") shall exist on the Disbursement
               Date.

(c)            REPRESENTATIONS AND WARRANTIES CORRECT.  Each of the
               representations and warranties made by the Company in the Note
               Agreement and as incorporated by reference herein shall be true
               and correct in all material respects on the Disbursement Date
               with the same effect as though made on and as of such date; and
               the Company shall have performed and complied with all
               agreements, covenants and conditions required by this Agreement
               and the Note Agreement to be performed and complied with by the
               Company on or prior to the Disbursement Date.

(d)            OTHER AGREEMENTS.  The Distribution Agreement and the Note
               Agreement shall be in full force and effect, and the Company
               shall not be in breach or default of any material covenant,
               condition or other provision thereof beyond the applicable grace
               period, if any, specified therein.



5.   REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company and its
     subsidiaries represent and warrant to Abbott as of the date hereof that the
     representations and warranties as made by the Company in Section3 of the
     Note Agreement are true and correct in all material respects with the same
     effect as though made on and as of the Disbursement Date, subject to
     delivery of an updated Disclosure Schedule.  The representations and
     warranties as made by the Company in Section3 of the Note Agreement are
     incorporated by reference in their entirety herein.

6.   COVENANTS AND AGREEMENTS OF THE COMPANY.  The Company has performed and
     complied with all of the covenants and agreements of the Company in
     Section5 and Section8 of the Note Agreement and further covenants and
     agrees to perform and comply with such provisions.  The covenants and
     agreements of the Company in Section5 and Section8 of the Note Agreement
     are incorporated by reference in their entirety herein.

7.   EVENTS OF DEFAULT.

7.1       EVENTS OF DEFAULT.  The following shall constitute "Events of
          Default":  (a)an Event of Default as defined in Section9 of the Note
          Agreement (which is hereby incorporated by reference in its entirety
          herein); (b)an Event of Default as defined under the Security
          Agreement dated as of August 12, 1998 between Abbott and the Company
          (which is hereby incorporated by reference in its entirety herein);
          (c)default by the Company in the payment of any amount under this
          Agreement or the Note; or (d)any representation or warranties by the
          Company set forth in this Agreement, the Note Agreement or the
          Security Agreement shall not be true and correct in all material
          respects as and when made.

7.2       TERMINATION OF COMMITMENT AND ACCELERATION.  If any Event of Default
          described in Section7.1 hereof shall occur, Abbott shall have no
          obligation to make disbursements hereunder and may declare all
          Obligations to be due and payable, whereupon all Obligations shall
          immediately become due and payable, all as so declared by Abbott and
          without presentment, demand, protest or other notice of any kind.  Any
          such declaration made pursuant to this Section7.2 may be rescinded by
          Abbott.

7.3       OTHER REMEDIES.  If any Event of Default shall occur and be
          continuing, Abbott shall have, in addition to the remedies set forth
          in Section7.2 hereof, all other remedies otherwise available at law.

8.   MISCELLANEOUS.

8.1       NOTICES.  Except as otherwise expressly provided herein, any notice,
          consent or document required or permitted hereunder shall be given in
          writing and it or any certificates or other documents delivered
          hereunder shall be deemed 



          effectively given or delivered (as the case may be) upon personal 
          delivery (professional courier permissible) or when mailed by 
          receipted United States certified mail delivery, or five (5) 
          business days after deposit in the United States mail.  Such 
          certificates, documents or notice may be personally delivered to an 
          authorized representative of the Company or Abbott (as the case may 
          be) at any address where such authorized representative is present 
          and otherwise shall be sent to the following address:

     If to the Company:  Micro Therapeutics, Inc.
                         1062 Calle Negocio #F
                         San Clemente, CA 92673
                         Attention:  George Wallace
                         Telecopy No.:  (949) 361-0210

     With a copy to:     Stradling, Yocca, Carlson & Rauth
                         660 Newport Center Drive, Suite 1600
                         Attention:  Bruce Feuchter
                         Telecopy No.:  (949) 725-4100

     If to Abbott:       Abbott Laboratories
                         D-960, AP30
                         200 Abbott Park Road
                         Abbott Park, IL 60064-3500
                         Attention:  President, Hospital Products Division
                         Telecopy No.:  (847) 937-0805

                         With a copy to:   Abbott Laboratories
                         Legal Division
                         D-322, AP6D
                         100 Abbott Park Road
                         Abbott Park, IL  60064-3500
                         Attn:  Divisional Vice President,
                         Domestic Legal Operations
                         Telecopy No.:  (847) 938-1206

8.2       SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon and
          inure to the benefit of the Company and its successors and assigns and
          shall be binding upon and inure to the benefit of Abbott and its
          successors and assigns; provided, however, that neither the Company
          nor Abbott shall assign this Agreement or any of its rights, duties or
          obligations hereunder without the prior written consent of the other
          party which consent shall not be unreasonably withheld, and provided
          further, Abbott may assign its rights hereunder after July31, 1999
          without the Company's prior written consent.

8.3       SURVIVAL OF COVENANTS AND REPRESENTATIONS.  All covenants,
          representations and warranties made by the Company herein and in any



          certificates delivered pursuant hereto, whether or not in connection
          with the Disbursement Date, shall survive the closing and the delivery
          of this Agreement and the Credit Facility Note.

8.4       SEVERABILITY.  Should any part of this Agreement for any reason be
          declared invalid or unenforceable, such decision shall not affect the
          validity or enforceability of any remaining portion, which remaining
          portion shall remain in force and effect as if this Agreement had been
          executed with the invalid or unenforceable portion thereof eliminated
          and it is hereby declared the intention of the parties hereto that
          they would have executed the remaining portion of this Agreement
          without including therein any such part, parts or portion which may,
          for any reason, be hereafter declared invalid or unenforceable.

8.5       WAIVER OF CONDITIONS.  If on any Disbursement Date, either party
          hereto fails to fulfill each of the conditions specified in Section4
          hereof, the other party may thereupon elect to be relieved of all
          further obligations under this Agreement.  Without limiting the
          foregoing, if the conditions specified in Section4 hereof have not
          been fulfilled, the other party may waive compliance by such party
          with any such condition to such extent as such party may in its sole
          discretion determine.  Nothing in this Section8.5 shall operate to
          relieve either party of any obligations hereunder or to waive any of
          the other party's rights against such party.

8.6       COUNTERPARTS.  This Agreement may be executed in one or more
          counterparts, each of which shall be deemed an original, but all of
          which shall constitute one and the same instrument.

8.7       GOVERNING LAW.  This Agreement and the Credit Facility Note issued and
          sold hereunder shall be governed by and construed in accordance with
          Delaware law, without regard to the conflict of laws provisions
          thereof.

8.8       CAPTIONS.  The descriptive headings of the various sections or parts
          of this Agreement are for convenience only and shall not affect the
          meaning or construction of any of the provisions hereof.

8.9       DISPUTE RESOLUTION.  Disputes shall be resolved as provided in Annex 2
          attached hereto.

IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the
     date and year first above written.

ABBOTT LABORATORIES


By:



Its:


MICRO THERAPEUTICS, INC.


By:

Its:


ANNEX 1

FORM OF CREDIT FACILITY NOTE
MICRO THERAPEUTICS, INC.
5% Convertible Credit Facility Note, due on August 19, 2003.


     San Clemente, California
[Up to $5,000,000]  [Date]

Micro Therapeutics, Inc., a corporation duly organized and existing under the
laws of the State of Delaware (the "Company"), for value received, hereby
promises to pay to Abbott Laboratories, an Illinois corporation ("Abbott"), or
its registered assigns (the "Holder"), the principal sum of [Up to Five Million
Dollars ($5,000,000)] on August 19, 2003 (the "Maturity"), and to pay interest
(i) on the unpaid principal balance thereof from the date of this Credit
Facility Note at the rate of five percent (5%) per annum, payable quarterly in
arrears on January 31, April 30, July 31 and October 31 of each year (each, an
"Interest Payment Date") (commencing on the first Interest Payment Date
following the date hereof) until such unpaid balance shall become due and
payable (whether at Maturity, or by declaration, acceleration or otherwise) and
(ii) on each overdue payment of principal or any overdue payment of interest, at
a rate per annum equal to ten percent (10%).

The interest and principal payments payable with respect to this Credit Facility
Note, on any Interest Payment Date, at Maturity or by declaration, acceleration
or otherwise, pursuant to the Credit Agreement (as defined herein), shall be
paid to Abbott in such coin or currency of the United States of America as at
the time of payment is legal tender for payment of public and private debts.
Such interest and principal payments shall be made to Abbott in accordance with
the provisions of the Credit Agreement.

This Credit Facility Note is the sole issue of a 5% Convertible Credit Facility
Note, due on the fifth anniversary of the date hereof, the Company issued in an
aggregate principal amount of [Up to Five Million Dollars ($5,000,000)] pursuant
to the Credit Agreement, dated August 12, 1998 by and between the Company and
Abbott (the "Credit Agreement").  The Holder of this Credit Facility Note is
entitled to the benefits of the Credit Agreement, 



and may enforce the Credit Agreement and exercise the remedies provided for 
thereby or otherwise available in respect thereof.

This Credit Facility Note may be transferred or assigned as provided in the
Credit Agreement, upon surrender of this Credit Facility Note for registration
of transfer, duly endorsed, or accompanied by a written instrument of transfer
duly executed by Abbott or Abbott's attorney duly authorized in writing, a new
Credit Facility Note for a like aggregate principal amount and otherwise of
similar tenor, will be issued to, and registered in the name of, the transferee
or transferees.  Prior to due presentment for registration of transfer, the
Company may treat the person in whose name this Credit Facility Note is
registered as the Holder and owner hereof for the purpose of receiving payments
and for all other purposes, and the Company shall not be affected by any notice
to the contrary.

In the case of an Event of Default (as defined in the Credit Agreement), the
principal of this Credit Facility Note in certain circumstances shall become due
and payable and in other circumstances may be declared and become due and
payable in the manner and with the effect provided in the Credit Agreement.

This Credit Facility Note is subject to conversion into Common Stock pursuant to
the terms and conditions of the Credit Agreement and conversion shall be
evidenced by a Notice of Conversion as attached hereto.

The indebtedness evidenced by this Credit Facility Note is, to the extent
provided in the Credit Agreement, subordinate and subject in right of payment to
the prior payment in full of all Senior Indebtedness (as defined in the Credit
Agreement), and this Credit Facility Note is issued subject to the provisions of
the Credit Agreement with respect thereto.  Each Holder of this Credit Facility
Note, by accepting the same, agrees to and shall be bound by such provisions.

No reference herein to the Note Agreement or Credit Agreement and no provision
of this Credit Facility Note, the Note Agreement or the Credit Agreement shall
alter or impair the obligation of the Company, which is absolute and
unconditional, to pay the principal of (and premium, if any) and interest on
this Credit Facility Note at the times, place and rate, and in the coin or
currency, herein prescribed or to convert this Credit Facility Note as provided
in the Credit Agreement.

All terms used in this Credit Facility Note which are defined in the Credit
Agreement shall have the meanings assigned to them in the Credit Agreement.

This Credit Facility Note, the Note Agreement and the Credit Agreement are
governed by and construed in accordance with the law of the State of Delaware.

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed
under its corporate seal.

Dated:  ___________________

                                   MICRO THERAPEUTICS, INC.



                                   By:
                                   Its:

ATTEST:
By:

Its:


NOTICE OF CONVERSION

Micro Therapeutics, Inc. hereby irrevocably exercises the option to convert this
Credit Facility Note, or portion hereof below designated (which is One Million
Dollars ($1,000,000) or an integral multiple thereof), into shares of Common
Stock in accordance with the terms of the Credit Agreement, and represents that
the shares issuable and deliverable upon such conversion, together with any
check in payment for fractional shares and any Credit Facility Note representing
any unconverted principal amount hereof, will be issued and delivered to the
current Holder of the Credit Facility Note.

     Principal amount to be converted (if less than all):   $__________


MICRO THERAPEUTICS, INC.

By:
Its:


ANNEX 2

DISPUTE RESOLUTION

The parties recognize that a bona fide dispute as to certain matters may arise
from time to time during the term of this Agreement which relates to either
party's rights and/or obligations.  To have such a dispute resolved by this
Alternative Dispute Resolution ("ADR") provision, a party first must send
written notice of the dispute to the other party for attempted resolution by
good faith negotiations between their respective presidents (or their
equivalents) of the affected subsidiaries, divisions, or business units within
twenty-eight (28) days after such notice is received (all references to "days"
in this ADR provision are to calendar days).

If the matter has not been resolved within twenty-eight (28) days of the notice
of dispute, or if the parties fail to meet within such twenty-eight (28) days,
either party may initiate an ADR proceeding as provided herein.  The parties
shall have the right to be represented by counsel in such a proceeding.




1.   To begin an ADR proceeding, a party shall provide written notice to the 
other party of the issues to be resolved by ADR.  Within fourteen (14) days 
after its receipt of such notice, the other party may, by written notice to 
the party initiating the ADR, add additional issues to be resolved within the 
same ADR.

2.   Within twenty-one (21) days following receipt of the original ADR 
notice, the parties shall select a mutually acceptable neutral to preside in 
the resolution of any disputes in this ADR proceeding.  If the parties are 
unable to agree on a mutually acceptable neutral within such period, either 
party may request the President of the CPR Institute for Dispute Resolution 
("CPR"), 366 Madison Avenue, 14th Floor, New York, New York  10017, to select 
a neutral pursuant to the following procedures:

          (a)  The CPR shall submit to the parties a list of not less than five
(5) candidates within fourteen (14) days after receipt of the request,
along with a CURRICULUM VITAE for each candidate.  No candidate shall be an
employee, director, or shareholder of either party or any of their
subsidiaries or affiliates.

          (b)  Such list shall include a statement of disclosure by each
candidate of any circumstances likely to affect his or her impartiality.

          (c)  Each party shall number the candidates in order of preference 
(with the number one (1) signifying the greatest preference) and shall 
deliver the list to the CPR within seven (7) days following receipt of the 
list of candidates.  If a party believes a conflict of interest exists 
regarding any of the candidates, that party shall provide a written 
explanation of the conflict to the CPR along with its list showing its order 
of preference for the candidates.  Any party failing to return a list of 
preferences on time shall be deemed to have no order of preference.

          (d)  If the parties collectively have identified fewer than three 
(3) candidates deemed to have conflicts, the CPR immediately shall designate 
as the neutral the candidate for whom the parties collectively have indicated 
the greatest preference.  If a tie should result between two candidates, the 
CPR may designate either candidate.  If the parties collectively have 
identified three (3) or more candidates deemed to have conflicts, the CPR 
shall review the explanations regarding conflicts and, in its sole 
discretion, may either (i) immediately designate as the neutral the candidate 
for whom the parties collectively have indicated the greatest preference, or 
(ii) issue a new list of not less than five (5) candidates, in which case the 
procedures set forth in subparagraphs 2(a) - 2(d) shall be repeated.

3.   No earlier than twenty-eight (28) days or later than fifty-six (56) days 
after selection, the neutral shall hold a hearing to resolve each of the 
issues identified by the parties.  The ADR proceeding shall take place at a 
location in the State of California agreed upon by the parties.  If the 
parties cannot agree, the neutral shall designate a location in the State of 
California other than the principal place of business of either party or any 
of their subsidiaries or affiliates.

4.   At least seven (7) days prior to the hearing, each party shall submit the
following to the other party and the neutral:

          (a)  a copy of all exhibits on which such party intends to rely in any
oral or written presentation to the neutral;



          (b)  a list of any witnesses such party intends to call at the
hearing, and a short summary of the anticipated testimony of each witness;

          (c)  a proposed ruling on each issue to be resolved, together with 
a request for a specific damage award or other remedy for each issue. The 
proposed rulings and remedies shall not contain any recitation of the facts 
or any legal arguments and shall not exceed one (1) page per issue.

          (d)  a brief in support of such party's proposed rulings and 
remedies, provided that the brief shall not exceed twenty (20) pages.  This 
page limitation shall apply regardless of the number of issues raised in the 
ADR proceeding.

Except as expressly set forth in subparagraphs 4(a) - 4(d), no discovery 
shall be required or permitted by any means, including depositions, 
interrogatories, requests for admissions, or production of documents.

5.   The hearing shall be conducted on two (2) consecutive days and shall be
governed by the following rules:

          (a)  Each party shall be entitled to five (5) hours of hearing time 
to present its case.  The neutral shall determine whether each party has had 
the five (5) hours to which it is entitled.

          (b)  Each party shall be entitled, but not required, to make an 
opening statement, to present regular and rebuttal testimony, documents or 
other evidence, to cross-examine witnesses, and to make a closing argument. 
Cross-examination of witnesses shall occur immediately after their direct 
testimony, and cross-examination time shall be charged against the party 
conducting the cross-examination.

          (c)  The party initiating the ADR shall begin the hearing and, if 
it chooses to make an opening statement, shall address not only issues it 
raised but also any issues raised by the responding party.  The responding 
party, if it chooses to make an opening statement, also shall address all 
issues raised in the ADR.  Thereafter, the presentation of regular and 
rebuttal testimony and documents, other evidence, and closing arguments shall 
proceed in the same sequence.

          (d)  Except when testifying, witnesses shall be excluded from the
hearing until closing arguments.

          (e)  Settlement negotiations, including any statements made 
therein, shall not be admissible under any circumstances.  Affidavits 
prepared for purposes of the ADR hearing also shall not be admissible.  As to 
all other matters, the neutral shall have sole discretion regarding the 
admissibility of any evidence.

6.   Within seven (7) days following completion of the hearing, each party 
may submit to the other party and the neutral a post-hearing brief in support 
of its proposed rulings and remedies, provided that such brief shall not 
contain or discuss any new evidence and shall not exceed ten (10) pages. This 
page limitation shall apply regardless of the number of issues raised in the 
ADR proceeding.

7.   The neutral shall rule on each disputed issue within fourteen (14) days 
following completion of the hearing.  Such ruling shall adopt in its entirety 
the proposed ruling and remedy of one of the parties on each disputed issue 
but may adopt one party's proposed rulings and remedies on some issues and 
the other party's proposed rulings and remedies on other issues.  



The neutral shall not issue any written opinion or otherwise explain the 
basis of the ruling.

8.   The neutral shall be paid a reasonable fee plus expenses.  These fees 
and expenses, along with the reasonable legal fees and expenses of the 
prevailing party (including all expert witness fees and expenses), the fees 
and expenses of a court reporter, and any expenses for a hearing room, shall 
be paid as follows:

          (a)  If the neutral rules in favor of one party on all disputed issues
in the ADR, the losing party shall pay 100% of such fees and expenses.

          (b)  If the neutral rules in favor of one party on some issues and 
the other party on other issues, the neutral shall issue with the rulings a 
written determination as to how such fees and expenses shall be allocated 
between the parties.  The neutral shall allocate fees and expenses in a way 
that bears a reasonable relationship to the outcome of the ADR, with the 
party prevailing on more issues, or on issues of greater value or gravity, 
recovering a relatively larger share of its legal fees and expenses.

9.   The rulings of the neutral and the allocation of fees and expenses shall 
be binding, non-reviewable, and non-appealable, and may be entered as a final 
judgment in any court having jurisdiction.

10.  Except as provided in paragraph 9 or as required by law, the existence 
of the dispute, any settlement negotiations, the ADR hearing, any submissions 
(including exhibits, testimony, proposed rulings, and briefs), and the 
rulings shall be deemed Confidential Information.  The neutral shall have the 
authority to impose sanctions for unauthorized disclosure of Confidential 
Information.



                                     EXHIBIT 5
                                 SECURITY AGREEMENT
THIS SECURITY AGREEMENT (this "Agreement") dated as of August 12, 1998, is made
     and entered into by and between Micro Therapeutics Inc. , a corporation
     organized and existing under the laws of the State of Delaware, having its
     principal place of business at 1062-F Calle Negocio, San Clemente,
     California 92673, (the "Debtor"), and Abbott Laboratories, an Illinois
     corporation, having its principal place of business at 100 Abbott Park
     Road, Abbott Park, Illinois 60064-3500 (the "Secured Party"), with
     reference to the following:

                                      RECITALS

A.   Debtor is executing and delivering to Secured Party a promissory note of
     even date herewith in the principal amount of Five Million U.S. Dollars
     ($5,000,000) payable to the order of Secured Party (the "Note") in
     connection with that certain Convertible Subordinated Note Agreement by and
     between Debtor and Secured Party, dated as of August12, 1998 (the "Note
     Agreement").
     
B.   Debtor is executing with the Secured Party a Credit Agreement on the date
     hereof (the "Credit Agreement") providing Debtor with the right to borrow
     from Secured Party up to Five Million U.S. Dollars ($5,000,000) on or
     before July 31, 1999 by delivery of a promissory note thereunder (the
     "Credit Facility Note").
     
C.   In order to secure the payment and performance of the obligations of Debtor
     to the Secured Party under the Note and the Credit Facility Note, Secured
     Party requires that Debtor grant to Secured Party a security interest in
     the Collateral as provided for herein.
     
NOW, THEREFORE, in consideration of the foregoing recitals, the following mutual
     agreements and promises, and other good and valuable consideration, the
     receipt and sufficiency of which are hereby acknowledged, the parties
     hereto hereby agree as follows:
     
                                     AGREEMENT
                                          
1.   SECURITY INTEREST.
     
(a)       Creation of Security Interest.  Debtor hereby grants to Secured Party
          a security interest in all of Debtor's right, title and interest in
          and to the Collateral, as defined in Subsection1(b) below, in order to
          secure the payment and performance of the obligations of Debtor to
          Secured Party described in Subsection1(d) below.

(b)       COLLATERAL.  As used herein, the term "Collateral" shall mean:
(i)            all Debtor's right, title and interest in and to the current and
               future





               trademarks owned by Debtor in connection with Debtor's peripheral
               blood clot infusion products in the Territory (as defined in the
               Distribution Agreement) (the "Trademarks"), which are set forth
               on Exhibit A hereto; and

(ii)           all Debtor's right, title and interest in and to the current and
               future patents owned by Debtor in connection with Debtor's
               peripheral blood clot infusion products in the Territory (the
               "Patents"), which are set forth on Exhibit B hereto; and

(iii)          all Debtor's right, title and interest in and to the other
               current and future intellectual property rights owned by Debtor
               in connection with Debtor's peripheral blood clot infusion
               products in the Territory (the "Other Assets"), which are set
               forth on Exhibit C hereto.

(c)       ASSIGNMENT.  Debtor shall execute a Notice of Recordation of
          Assignment Document with the United States Patent and Trademark Office
          for each Trademark and Patent registered with the United States Patent
          and Trademark Office, thereby assigning all right, title and interest
          in such Patents and Trademarks to the Secured Party for the purpose of
          obtaining for the Secured Party the complete and timely satisfaction
          of a security interest in the Patents and the Trademarks.  Debtor
          shall perfect the filing of a UCC-1 document for each of the
          Collateral for the purpose of obtaining for the Secured Party the
          complete and timely satisfaction of a security interest in the
          Collateral.

(d)       OBLIGATIONS SECURED.  The security interest granted to Secured Party
          by Debtor pursuant to this Section1 shall secure payment and
          performance of Debtor's obligations under (i)the Note, (ii)the Note
          Agreement, (iii) the Credit Facility Note, (iv) the Credit Agreement
          and (iv)any amendment, modification, renewal or extension of the Note
          or the Note Agreement (the "Secured Obligations").
          
2.   REPRESENTATIONS AND WARRANTIES OF DEBTOR.  Debtor hereby represents and
     warrants to Secured Party that:
     
(a)       Debtor is a corporation duly organized, validly existing and in good
          standing under the laws of the State of Delaware and has all requisite
          corporate power and authority to carry on its business as now
          conducted.  Debtor is duly qualified to transact business and is in
          good standing in each jurisdiction in which the failure so to qualify
          would have a material adverse effect on its business, financial
          condition or properties.
          
(b)       All corporate action on the part of Debtor necessary for the execution
          and delivery of this Agreement has been duly authorized by Debtor's
          Board of Directors.  This Agreement constitutes valid and legally
          binding obligations





          of Debtor, enforceable in accordance with its terms, except as
          enforcement thereof may be limited by bankruptcy laws, laws affecting
          creditors' rights and court decisions limiting the availability of
          specific performance and other equitable remedies. Debtor has full
          corporate power and corporate authority to execute and deliver this
          Agreement and to carry out the transactions contemplated hereby.

(c)       Debtor has not changed its name, address or organization within the
          last four (4) months.

(d)       The Collateral is subject to no other lien or security interest.

3.   COVENANTS.

(a)       Until payment of all obligations due under the Note, Debtor agrees
          that, unless the Secured Party shall have otherwise consented in
          writing:

(i)            Debtor shall execute and take such action as may reasonably be
               requested from time to time by Secured Party, including the
               execution and delivery of financing statements and certificates
               of title, and the filing of financing statements, as may be
               necessary to perfect and maintain the first priority security
               interest granted to Secured Party hereby.
               
(ii)           Debtor shall keep appropriate records and, upon written request
               of the Secured Party, will give Secured Party any information it
               may reasonably require with respect to the condition and status
               of the Collateral.
               
(iii)          Debtor shall update Exhibits (A) (B) and (C) on a quarterly basis
               and shall notify Secured Party in writing of additions to the
               Collateral during the period as there remains outstanding
               principal or interest on the Note or the Credit Facility Note.
               
(iv)           Debtor shall notify Secured Party within ten (10) days of any
               change in (A)Debtor's corporate name, (B)Debtor's business or
               legal structure, or (C)Debtor's place of business or chief
               executive office if the Debtor has more than one place of
               business, or (D)location of Collateral.

(b)       Until payment of all obligations due under the Note or conversion of
          the Note, the Secured Party covenants to subordinate this Security
          Agreement to Senior Indebtedness (so long as the Senior Indebtedness
          is secured by a perfected security interest in the Collateral) as
          defined in the Note Agreement at the request of the Company.





4.   EVENTS OF DEFAULT.  The occurrence of the following shall constitute an
     "Event of Default":

(a)       PAYMENTS.  Default in the payment of the principal and unpaid accrued
          interest of the Note when due and payable if such default is not cured
          by the Company within ten (10) days after the Holder has given the
          Company written notice of such default.
          
(b)       BANKRUPTCY.  The institution by the Company of proceedings to be
          adjudicated as bankrupt or insolvent, or the consent by it to
          institution of bankruptcy or insolvency proceedings against it or the
          filing by it of a petition or answer or consent seeking reorganization
          or release under the federal Bankruptcy Code, or any other applicable
          federal or state law, or the consent by it to the filing of any such
          petition or the appointment of a receiver, liquidator, assignee,
          trustee or other similar official of the Company, or of any
          substantial part of its property, or the making by it of an assignment
          for the benefit of creditors, or the taking of corporate action by the
          Company in furtherance of any such action.
          
(c)       COMMENCEMENT OF AN ACTION.  If, within sixty (60) days after the
          commencement of an action against the Company (and service of process
          in connection therewith on the Company) seeking any bankruptcy,
          insolvency, reorganization, liquidation, dissolution or similar relief
          under any present or future statute, law or regulation, such action
          shall not have been resolved in favor of the Company or all orders or
          proceedings thereunder affecting the operations or the business of the
          Company stayed, or if the stay of any such order or proceeding shall
          thereafter be set aside, or if, within sixty (60) days after the
          appointment without the consent or acquiescence of the Company of any
          trustee, receiver or liquidator of the Company or of all or any
          substantial part of the properties of the Company, such appointment
          shall not have been vacated.
          
(d)       DEFAULT OF SENIOR INDEBTEDNESS.  Any declared default of the Company
          under any Senior Indebtedness (as defined in the Note Agreement) that
          gives the holder thereof the right to accelerate such Senior
          Indebtedness, and such Senior Indebtedness is in fact accelerated by
          the holder.
          
(e)       COVENANTS AND AGREEMENTS.  The Company shall default in the
          performance of any of its material covenants and agreements set forth
          in any provision of the Note Agreement and the continuance of such
          default for thirty (30) days after the Holder (as defined in the Note
          Agreement) has given the Company written notice of such default.
          
(f)       DEFAULT UNDER OTHER AGREEMENTS.  The Company breaches or defaults on
          any material covenant, condition or other provision of the
          Distribution Agreements and such breach or default continues after the
          applicable grace





          period, if any, specified therein but in no event more than thirty
          (30) days after the Holder has given the Company written notice of
          such breach or default.

(g)       CHANGE OF CONTROL OF THE COMPANY.  Any change in control of the
          Company which includes any consolidation of the Company with, or
          merger of the Company into, any other Person, any merger of another
          Person into the Company (other than a merger which does not result in
          any reclassification, conversion, exchange or cancellation of
          outstanding shares of Common Stock), any acquisition of at least a
          majority of the Voting Stock (as defined in the Note Agreement) of the
          Company or any sale or transfer of all or substantially all of the
          business or assets of the Company (a "Change of Control"), or Abbott's
          receipt of written notice from the Company that a Change of Control
          will occur.
          
5.   SECURED PARTY'S RIGHTS AND REMEDIES.
     
(a)       Upon the occurrence of an Event of Default as hereinabove set forth,
          the Secured Party may exercise all rights or remedies that the Secured
          Party may have as a secured party under the Uniform Commercial Code as
          adopted in the State of California.
          
(b)       Upon the occurrence of an Event of Default as hereinabove set forth,
          the Secured Party may, at its option, (i) retain for its own
          commercial use all or any portion of the Collateral upon terms that
          are commercially reasonable; provided that upon such retention the
          Note and the Credit Facility Note shall be credited as fully paid,
          and/or (ii) sell, lease or otherwise dispose of all or any part of the
          Collateral upon any terms which are commercially reasonable.  Secured
          Party shall give fifteen (15) days prior written notice to Debtor of
          the time and place of any public sale of the Collateral, or of the
          time after which a private sale or other disposition of the Collateral
          is to be made.
          
(c)       All proceeds from the sale or other disposition of the Collateral, and
          all other amounts received by Secured Party pursuant to the terms of
          this Agreement, unless otherwise expressly required by law or
          regulation, shall be applied as follows:
          
(1)            FIRST, to the payment of all expenses reasonably incurred by
               Secured Party in connection with any sale or disposition of the
               Collateral, including, but not limited to, the expenses of
               taking, advertising, processing, preparing and storing the
               Collateral to be sold, and all court costs and all reasonable
               legal fees of Secured Party in connection therewith;
               
(2)            SECOND, to the payment of all obligations of Debtor to Secured
               Party arising under the Note which have come due and are unpaid;
               and





(3)            THIRD, the balance, if any, to Debtor.

(d)       No delay or omission by Secured Party in exercising any right or
          remedy hereunder or with respect to any obligation of Debtor to
          Secured Party secured hereunder shall operate as a waiver thereof or
          of any other right or remedy available to Secured Party, and no single
          or partial exercise thereof shall preclude any other or further
          exercise thereof or the exercise of any other right or remedy. 
          Secured Party, in its sole discretion, on at least three (3) days
          prior written notice to Debtor, may (but shall have no obligation to)
          remedy any Event of Default by Debtor hereunder or with respect to any
          obligation of Debtor to the Secured Party or any other person, firm,
          corporation or other entity in any reasonable manner without waiving
          the Event of Default remedied and without waiving any other prior or
          subsequent Event of Default by Debtor, and shall be reimbursed for its
          necessary and reasonable out-of-pocket expenses in so remedying any of
          such Event of Default.  All rights and remedies of Secured Party
          hereunder are cumulative.
          
6.   MISCELLANEOUS.
     
(a)       SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon and
          inure to the benefit of the Company and its successors and assigns and
          shall be binding upon and inure to the benefit of Abbott and its
          successors and assigns; provided, however, that neither the Company
          nor Abbott shall assign this Agreement or any of its rights, duties or
          obligations hereunder without the prior written consent of the other
          party which consent shall not be unreasonably withheld, and provided
          further, Abbott may assign its rights hereunder after July31, 1999
          without the Company's prior written consent.
          
(b)       GOVERNING LAW.  This Agreement shall be governed by and construed
          under the laws of the State of California.
          
(c)       TITLES AND SUBTITLES.  The titles and subtitles used in this Agreement
          are for convenience of reference only and are not to be considered in
          construing or interpreting this Agreement.
          
(d)       NOTICE.  Except as otherwise expressly provided herein, any notice,
          consent or document required or permitted hereunder shall be given in
          writing and it or any certificates or other documents delivered
          hereunder shall be deemed effectively given or delivered (as the case
          may be) upon personal delivery (professional courier permissible) or
          when mailed by receipted United States certified mail delivery, or
          five (5) business days after deposit in the United States mail.  Such
          certificates, documents or notice may be personally delivered to an
          authorized representative of the Company or Abbott (as the case may
          be) at any address where such authorized representative is present and
          otherwise shall be sent to the following address:





     If to the Company:  Micro Therapeutics, Inc.
                         1062 Calle Negocio #F
                         San Clemente, CA 92673
                         Attention:  George Wallace
                         Telecopy No.:  (949) 361-0210

     With a copy to:     Stradling Yocca Carlson & Rauth
                         660 Newport Center Drive, Suite 1600
                         Newport Beach, CA 92660
                         Attention:  Bruce Feuchter
                         Telecopy No.:  (949) 725-4100
     
     If to Abbott:       Abbott Laboratories
                         D-960, AP30
                         200 Abbott Park Road
                         Abbott Park, IL 60064-3500
                         Attention:  President, Hospital Products Division
                         Telecopy No.:  (847) (937-0805

     With a copy to:     Abbott Laboratories
                         Legal Division
                         D-322, AP6D
                         100 Abbott Park Road
                         Abbott Park, IL  60064-3500
                         Attn:  Divisional Vice President, 
                         Domestic Legal Operations
                         Telecopy No.:  (847) 938-1206

Any party hereto may from time to time, by ten (10) days' advance written 
notice to the other parties, designate a different address, which shall be 
substituted for the one specified above for such party.  If any notice or 
other document is sent by certified or registered mail, return receipt 
requested, postage prepaid, properly addressed as aforementioned, the same 
shall be deemed served or delivered seventy-two (72) hours after mailing 
thereof.  If any notice is sent by facsimile machine ("fax") to a party, he 
will be deemed to have been delivered on the date the fax thereof is actually 
received, provided the original thereof is sent by mail in the manner set 
forth above, within twenty-four (24) hours after the fax is sent.

(e)       AMENDMENTS, WAIVERS AND CONSENTS.  Any term of this Agreement to the
          contrary notwithstanding, changes in or additions to this Agreement
          may be made, and compliance with any covenant or provision or breach
          of any representation or warranty herein or therein set forth may be
          omitted or waived, if the Debtor shall obtain consent thereto in
          writing from the Secured Party.  Any waiver or consent may be given
          subject to satisfaction of conditions stated therein and any waiver or
          consent shall be effective only in the specific instance and for the
          specific purpose for which given.





(f)       COUNTERPARTS.  This Agreement may be executed in one or more
          counterparts, and any number of counterparts signed in the aggregate
          by Debtor and the Secured Party shall constitute a single original
          instrument.
          
(g)       ENTIRE AGREEMENT.  This Agreement, the Note, the Note Agreement, the
          Credit Agreement, the Credit Facility Note and the Distribution
          Agreement constitute the entire understanding between the parties with
          respect to the subject matter hereof, superseding all negotiations,
          prior discussions and preliminary agreements with respect thereto.

(h)       WAIVER.  No waiver of any term, provision or condition of this
          Agreement, whether by conduct or otherwise, in any one or more
          instances, shall be deemed to be or be construed as a further or
          continuing waiver of any such term, provision or condition or as a
          waiver of any other term, provision or condition of this Agreement.

(i)       FURTHER ASSURANCES.  Each party hereto agrees to execute and deliver
          such other documents and instruments as the other party may reasonably
          request to better evidence or effectuate the rights and obligations of
          the parties hereto and the transactions contemplated hereunder,
          provided that no party shall, as a result thereof, be required to
          assume any further obligation or relinquish any of its rights
          hereunder.

(j)       SEVERABILITY.  The invalidity or unenforceability of any provision
          hereto shall in no way affect the validity or enforceability of any
          other provision.

(k)       NUMBER AND GENDER.  Whenever the singular or plural number is used
          herein, and when the context so requires, the same shall include the
          plural or singular, as the case may be; and, the masculine, feminine
          and neuter gender shall each include the other.

(l)       DISPUTES RESOLUTION.  Disputes shall be resolved as provided in
          Exhibit D attached hereto.

IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.
"Debtor"

MICRO THERAPEUTICS, INC.,
a Delaware corporation


By:
Its:





"Secured Party"

ABBOTT LABORATORIES,
an Illinois corporation


By:
Its:


                                     EXHIBIT A
                               INTELLECTUAL PROPERTY
                                     TRADEMARKS
                                          
                                          
                                          
                               REGISTERED TRADEMARKS
                               ---------------------

     NAME                TRADEMARK-TM-    REGISTERED-Registered Trademark-

1.   ProStream                            TM Reg. No. 2,035,778

2.   MicroMewi                            TM Reg. No. 2,137,320





                          TRADEMARKS - NOT YET REGISTERED
                          -------------------------------

     NAME                TRADEMARKTM         REGISTERED-Registered Trademark-

1.   Cragg Thrombolytic Brush

2.   Mewi-5                   Appl. No. 75/431312

3.   Castaneda Over-The-Wire Brush

4.   Focused Infusion Catheters



                                     EXHIBIT B
                               INTELLECTUAL PROPERTY






                                      PATENTS





1.   Valved-Tip Angiographic Catheter  5,085,535

2.   Infusion Device with Preformed Shape (Coiled Wire) 5,554,114

3.   Longitudinally Extendable Infusion Device  5,624,396

4.   U.S. patent application number 08/541,147, filed 10/11/95, response to 1st
Office Action filed 7/10/97   Infusion Guidewire Having Fixed Cord and Flexible
Radiopague Marker (Straight Wire)

5.   U.S. patent application number 08/900,024, filed 7/24/97, awaiting office
action; PCT filed   CIP to Infusion Guidewire Having Fixed Core and Flexible
Radiopague Marker

6.   U.S. patent application number 08/746,302, filed 11/8/96, issue fee paid
4/15/98   Infusion Device for Distributing Infusate Along an Elongated Infusion
Segment

7.   U.S. patent application number 09/079,487, filed 5/15/97, awaiting 1st
office action; Canada and EPO filed and in process  Power Lysis of Thrombus
in Blood Vessels

8.   Thrombectomy Method and Apparatus  5,370,653

9.   Miniaturized Brush with Hollow Lumen Brush Body 5,681,335



EXHIBIT C
OTHER ASSETS
NO OTHER CURRENT ASSETS


EXHIBIT D
DISPUTE RESOLUTION
The parties recognize that a bona fide dispute as to certain matters may arise
from time to time during the term of this Agreement which relates to either
party's rights and/or obligations.  To have such a dispute resolved by this
Alternative Dispute Resolution ("ADR") provision, a party first must send
written notice of the dispute to the other party for attempted resolution by
good faith negotiations between their respective presidents (or their
equivalents) of the affected subsidiaries, divisions, or business units within
twenty-eight (28) days after such notice is received (all references to "days"
in this ADR provision are to calendar days).





If the matter has not been resolved within twenty-eight (28) days of the notice
of dispute, or if the parties fail to meet within such twenty-eight (28) days,
either party may initiate an ADR proceeding as provided herein.  The parties
shall have the right to be represented by counsel in such a proceeding.


1.   To begin an ADR proceeding, a party shall provide written notice to the
     other party of the issues to be resolved by ADR.  Within fourteen (14) days
     after its receipt of such notice, the other party may, by written notice to
     the party initiating the ADR, add additional issues to be resolved within
     the same ADR.

2.   Within twenty-one (21) days following receipt of the original ADR notice,
     the parties shall select a mutually acceptable neutral to preside in the
     resolution of any disputes in this ADR proceeding.  If the parties are
     unable to agree on a mutually acceptable neutral within such period, either
     party may request the President of the CPR Institute for Dispute Resolution
     ("CPR"), 366 Madison Avenue, 14th Floor, New York, New York  10017, to
     select a neutral pursuant to the following procedures:

                    (a)  The CPR shall submit to the parties a list of not less
               than five (5) candidates within fourteen (14) days after receipt
               of the request, along with a CURRICULUM VITAE for each candidate.
               No candidate shall be an employee, director, or shareholder of
               either party or any of their subsidiaries or affiliates.

                    (b)  Such list shall include a statement of disclosure by
               each candidate of any circumstances likely to affect his or her
               impartiality.

                    (c)  Each party shall number the candidates in order of
               preference (with the number one (1) signifying the greatest
               preference) and shall deliver the list to the CPR within seven
               (7) days following receipt of the list of candidates.  If a party
               believes a conflict of interest exists regarding any of the
               candidates, that party shall provide a written explanation of the
               conflict to the CPR along with its list showing its order of
               preference for the candidates.  Any party failing to return a
               list of preferences on time shall be deemed to have no order of
               preference.


                    (d)  If the parties collectively have identified fewer than
               three (3) candidates deemed to have conflicts, the CPR
               immediately shall designate as the neutral the candidate for whom
               the parties collectively have indicated the greatest preference. 
               If a tie should result between two candidates, the CPR may
               designate either candidate.  If the parties collectively have
               identified three (3) or more candidates deemed to have conflicts,
               the CPR shall review the explanations regarding conflicts and, in
               its sole





               discretion, may either (i) immediately designate as the neutral
               the candidate for whom the parties collectively have indicated
               the greatest preference, or (ii) issue a new list of not less
               than five (5) candidates, in which case the procedures set forth
               in subparagraphs 2(a) - 2(d) shall be repeated.

3.   No earlier than twenty-eight (28) days or later than fifty-six (56) days
     after selection, the neutral shall hold a hearing to resolve each of the
     issues identified by the parties.  The ADR proceeding shall take place at a
     location in the State of California agreed upon by the parties.  If the
     parties cannot agree, the neutral shall designate a location in the State
     of California other than the principal place of business of either party or
     any of their subsidiaries or affiliates.

4.   At least seven (7) days prior to the hearing, each party shall submit the
     following to the other party and the neutral:

                    (a)  a copy of all exhibits on which such party intends to
               rely in any oral or written presentation to the neutral; 

                    (b)  a list of any witnesses such party intends to call at
               the hearing, and a short summary of the anticipated testimony of
               each witness;

                    (c)  a proposed ruling on each issue to be resolved,
               together with a request for a specific damage award or other
               remedy for each issue. The proposed rulings and remedies shall
               not contain any recitation of the facts or any legal arguments
               and shall not exceed one (1) page per issue.

                    (d)  a brief in support of such party's proposed rulings and
               remedies, provided that the brief shall not exceed twenty (20)
               pages.  This page limitation shall apply regardless of the number
               of issues raised in the ADR proceeding.

Except as expressly set forth in subparagraphs 4(a) - 4(d), no discovery shall
     be required or permitted by any means, including depositions,
     interrogatories, requests for admissions, or production of documents.

5.   The hearing shall be conducted on two (2) consecutive days and shall be
     governed by the following rules:

                    (a)  Each party shall be entitled to five (5) hours of
               hearing time to present its case.  The neutral shall determine
               whether each party has had the five (5) hours to which it is
               entitled.

                    (b)  Each party shall be entitled, but not required, to make
               an opening statement, to present regular and rebuttal testimony,
               documents or other evidence, to cross-examine





               witnesses, and to make a closing argument.  Cross-examination of
               witnesses shall occur immediately after their direct testimony,
               and cross-examination time shall be charged against the party
               conducting the cross-examination.

                    (c)  The party initiating the ADR shall begin the hearing
               and, if it chooses to make an opening statement, shall address
               not only issues it raised but also any issues raised by the
               responding party.  The responding party, if it chooses to make an
               opening statement, also shall address all issues raised in the
               ADR.  Thereafter, the presentation of regular and rebuttal
               testimony and documents, other evidence, and closing arguments
               shall proceed in the same sequence.

                    (d)  Except when testifying, witnesses shall be excluded
               from the hearing until closing arguments.

                    (e)  Settlement negotiations, including any statements made
               therein, shall not be admissible under any circumstances. 
               Affidavits prepared for purposes of the ADR hearing also shall
               not be admissible.  As to all other matters, the neutral shall
               have sole discretion regarding the admissibility of any evidence.

6.   Within seven (7) days following completion of the hearing, each party may
     submit to the other party and the neutral a post-hearing brief in support
     of its proposed rulings and remedies, provided that such brief shall not
     contain or discuss any new evidence and shall not exceed ten (10) pages. 
     This page limitation shall apply regardless of the number of issues raised
     in the ADR proceeding.

7.   The neutral shall rule on each disputed issue within fourteen (14) days
     following completion of the hearing.  Such ruling shall adopt in its
     entirety the proposed ruling and remedy of one of the parties on each
     disputed issue but may adopt one party's proposed rulings and remedies on
     some issues and the other party's proposed rulings and remedies on other
     issues.  The neutral shall not issue any written opinion or otherwise
     explain the basis of the ruling.

8.   The neutral shall be paid a reasonable fee plus expenses.  These fees and
     expenses, along with the reasonable legal fees and expenses of the
     prevailing party (including all expert witness fees and expenses), the fees
     and expenses of a court reporter, and any expenses for a hearing room,
     shall be paid as follows:

                    (a)  If the neutral rules in favor of one party on all
               disputed issues in the ADR, the losing party shall pay 100% of
               such fees and expenses.

                    (b)  If the neutral rules in favor of one party on some
               issues and the other party on other issues, the neutral shall
               issue with the rulings a written determination as to how such
               fees and expenses shall be allocated between the parties.  The
               neutral shall





               allocate fees and expenses in a way that bears a reasonable
               relationship to the outcome of the ADR, with the party prevailing
               on more issues, or on issues of greater value or gravity,
               recovering a relatively larger share of its legal fees and
               expenses.

9.   The rulings of the neutral and the allocation of fees and expenses shall be
     binding, non-reviewable, and non-appealable, and may be entered as a final
     judgment in any court having jurisdiction.

10.  Except as provided in paragraph 9 or as required by law, the existence of
     the dispute, any settlement negotiations, the ADR hearing, any submissions
     (including exhibits, testimony, proposed rulings, and briefs), and the
     rulings shall be deemed Confidential Information.  The neutral shall have
     the authority to impose sanctions for unauthorized disclosure of
     Confidential Information.