ARTERIAL VASCULAR ENGINEERING INC
8-K, 1998-12-01
SURGICAL & MEDICAL INSTRUMENTS & APPARATUS
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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

                                    FORM 8-K

                                 CURRENT REPORT

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

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

                                 Date of Report
              (Date of earliest event reported): November 29, 1998

                       ARTERIAL VASCULAR ENGINEERING, INC.
   --------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)


          Delaware                                         0-27802
- -------------------------------                ---------------------------------
   (State of incorporation)                        (Commission File Number)


                                   94-3144218
                   ------------------------------------------
                        (IRS Employer Identification No.)


    3576 Unocal Place, Santa Rosa, California                           95403
- ----------------------------------------------------                ------------
     (Address of principal executive offices)                        (zip code)


                                 (707) 525-0111
      ---------------------------------------------------------------------
              (Registrant's telephone number, including area code)

                                       1.

<PAGE>


Item 5.  Other Events.

         This  Current  Report on Form 8-K contains  forward-looking  statements
within the meaning of Section 27A of the Securities Act of 1933, as amended, and
Section  21E  of  the  Securities   Exchange  Act  of  1934,  as  amended.   The
forward-looking  statements  contained  herein involve risks and  uncertainties,
including  those  relating to the  possible  inability  to  complete  the merger
transaction   involving   Arterial  Vascular   Engineering,   Inc.,  a  Delaware
corporation  (the  "Company"),  and  Medtronic,  Inc.,  a Minnesota  corporation
("Parent"),  as scheduled,  if at all, and those  associated with the ability of
the combined company to achieve the anticipated  benefits of the merger.  Actual
results  and  developments  may  differ   materially  from  those  described  or
incorporated by reference in this Report.  For more information about Parent and
the  Company  and  risks  arising  when  investing  in Parent  and the  Company,
investors are directed to Parent's and the Company's  most recent report on Form
10-K and most  recent  report  on Form  10-Q as filed  with the  Securities  and
Exchange Commission (the "SEC").

         On November 29, 1998, the Company entered into an Agreement and Plan of
Merger (the "Merger  Agreement")  with Parent and MAV Merger  Corp.,  a Delaware
corporation and wholly owned subsidiary of Parent ("Merger Subsidiary").

         Subject to the terms and  conditions  of the Merger  Agreement,  Merger
Subsidiary  will be  merged  with and into the  Company  (the  "Merger")  at the
effective  time of the  Merger  and the  Company  will  become  a  wholly  owned
subsidiary of Parent.  At the  effective  time of the Merger,  then  outstanding
shares of common  stock,  $.001 par value per share,  of the  Company  ("Company
Common  Stock"),  other than  shares of Company  Common  Stock to be canceled in
accordance  with the  Merger  Agreement,  will be  converted  into the  right to
receive a number of shares (carried out to five decimal places and rounded up if
the sixth  decimal  place is 5 or greater)  (the  "Conversion  Ratio") of common
stock, par value $.10 per share, of Parent ("Parent Common Stock"), based on the
average  (rounded to the  nearest  full cent,  with the cents  rounded up if the
third decimal place is 5 or more) of the daily closing sale prices of a share of
Parent  Common  Stock  as  reported  on the New  York  Stock  Exchange  ("NYSE")
Composite  Tape,  as reported in the Wall Street  Journal (the  "Parent  Average
Stock  Price"),  for the fifteen  consecutive  NYSE  trading  days ending on and
including  the  NYSE  trading  day that is two NYSE  trading  days  prior to the
meeting of stockholders of the Company that will be called to vote on the Merger
(the "Determination Period"), determined as follows.

         (i)      if the Parent Average Stock Price for the Determination Period
                  is  greater  than  $61.20  and  less  than  $74.80,  then  the
                  Conversion  Ratio  shall  equal  $54.00  divided by the Parent
                  Average Stock Price for the Determination Period;

         (ii)     if the Parent Average Stock Price for the Determination Period
                  is equal to or less than  $61.20,  then the  Conversion  Ratio
                  shall equal 0.88235; or

         (iii)    if the Parent Average Stock Price for the Determination Period
                  is equal to or greater than $74.80,  then the Conversion Ratio
                  shall equal 0.72193.

                                       2.

<PAGE>


       In  addition,  Parent will assume  outstanding  options  exercisable  for
Company Common Stock.

       The Merger is intended to be a tax-free reorganization under the Internal
Revenue  Code of 1986,  as amended,  and is intended  to be  accounted  for as a
pooling-of-interests.  The Merger is subject to approval by the  stockholders of
the Company, regulatory approvals and other customary closing conditions.

       Also on November  29,  1998,  the  Company  entered  into a Stock  Option
Agreement  with  Parent  (the "Stock  Option  Agreement")  pursuant to which the
Company  granted an option to Parent to  purchase  12,807,795  shares of Company
Common Stock at a price of $54 per share upon the  occurrence of certain  events
related to termination of the Merger Agreement.  In addition,  certain executive
officers and directors of the Company entered into voting agreements on November
29, 1998,  pursuant to which such  officers or  directors  agreed to vote shares
owned by them in favor of the Merger.

       The  foregoing  summaries  of  certain  principal  terms  of  the  Merger
Agreement  and the Stock Option  Agreement do not purport to be complete and are
qualified in their  entirety by reference to the Merger  Agreement and the Stock
Option Agreement, copies of which are attached hereto as Exhibit 2.1 and Exhibit
2.2, respectively, and are hereby incorporated by reference herein.

       A copy of the press release  issued by Parent and the Company on November
30,  1998 is  attached  hereto as  Exhibit  99.1 and is hereby  incorporated  by
reference herein.

       A registration statement relating to the Parent Common Stock to be issued
in  connection  with the Merger  has not yet been filed with the SEC,  nor has a
proxy statement  relating to a vote of the Company's  stockholders on the Merger
been filed with the SEC.  The Parent  Common  Stock may not be offered,  nor may
offers to acquire such stock be accepted,  prior to the time such a registration
statement becomes  effective.  This Report shall not constitute an offer to sell
or the  solicitation  of an offer to buy any  Parent  Common  Stock or any other
security,  and shall not constitute the solicitation of any vote with respect to
the Merger.

Item 7.  Financial Statements and Exhibits

         (a) Financial statements of businesses acquired.

                  Not applicable.

         (b) Pro forma financial information.

                  Not applicable.

         (c) Exhibits

         2.1      Agreement and Plan of Merger,  dated November 29, 1998, by and
                  among Medtronic, Inc., a Minnesota corporation ("Parent"), MAV
                  Merger Corp.,

                                       3.

<PAGE>


                  a Delaware  corporation  and  Arterial  Vascular  Engineering,
                  Inc., a Delaware corporation (the "Company").

         2.2      Stock Option Agreement by and between Parent and the Company.

         99.1     Joint Press Release of Parent and the Company.

                                       4.

<PAGE>


                                    SIGNATURE

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                                         ARTERIAL VASCULAR ENGINEERING, INC.


                                         /s/ Lawrence J. Fassler
                                         ---------------------------------------
                                         By: Lawrence J. Fassler
                                         Title: Vice President of Legal Affairs,
                                                General Counsel and Secretary


Dated: December 1, 1998

                                       5.

<PAGE>


Exhibit Number    Exhibit Description

     2.1          Agreement and Plan of Merger,  dated November 29, 1998, by and
                  among Medtronic, Inc., a Minnesota corporation ("Parent"), MAV
                  Merger Corp.,  a Delaware  corporation  and Arterial  Vascular
                  Engineering, Inc., a Delaware corporation (the "Company").

     2.2          Stock Option Agreement by and between Parent and the Company.

     99.1         Joint Press Release of Parent and the Company.

                                       6.












                          AGREEMENT AND PLAN OF MERGER

                                  BY AND AMONG

                                MEDTRONIC, INC.,

                                MAV MERGER CORP.,

                                       AND

                       ARTERIAL VASCULAR ENGINEERING, INC.




                                November 29, 1998





<PAGE>


<TABLE>
                                                 TABLE OF CONTENTS

<CAPTION>
                                                                                                               PAGE
<S>                                                                                                              <C>
ARTICLE 1   THE MERGER; CONVERSION OF SHARES......................................................................1

         1.1 The Merger...........................................................................................1

         1.2 Effective Time.......................................................................................1

         1.3 Conversion of Shares.................................................................................2

         1.4 No Appraisal Rights..................................................................................3

         1.5 Exchange of Company Common Stock.....................................................................3

         1.6 Exchange of Merger Subsidiary Common Stock...........................................................5

         1.7 Stock Options........................................................................................5

         1.8 Capitalization Changes...............................................................................7

         1.9 Certificate of Incorporation of the Surviving Corporation............................................7

         1.10 Bylaws of the Surviving Corporation.................................................................7

         1.11 Directors and Officers of the Surviving Corporation.................................................7

ARTICLE 2   CLOSING ..............................................................................................7

         2.1 Time and Place.......................................................................................7

         2.2 Filings at the Closing...............................................................................8

ARTICLE 3   REPRESENTATIONS AND WARRANTIES OF THE COMPANY.........................................................8

         3.1 Organization.........................................................................................8

         3.2 Authorization........................................................................................9

         3.3 Capitalization......................................................................................10

         3.4 Reports and Financial Statements....................................................................11

         3.5 Absence of Undisclosed Liabilities..................................................................12

         3.6 Consents and Approvals..............................................................................12

         3.7 Compliance with Laws................................................................................13

         3.8 Litigation..........................................................................................13

         3.9 Absence of Material Adverse Changes.................................................................13

         3.10 Officers, Directors and Employees..................................................................14

         3.11 Taxes..............................................................................................14

         3.12 Contracts..........................................................................................15

         3.13 Intellectual Property Rights.......................................................................16

                                                         i.

<PAGE>


         3.14 Benefit Plans......................................................................................16

         3.15 Minute Books.......................................................................................18

         3.16 No Finders.........................................................................................18

         3.17 Proxy Statement....................................................................................18

         3.18 Fairness Opinion...................................................................................19

         3.19 State Takeover Laws; Rights Plan...................................................................19

ARTICLE 4   REPRESENTATIONS AND WARRANTIES OF PARENT AND MERGER SUBSIDIARY.......................................19

         4.1 Organization........................................................................................20

         4.2 Authorization.......................................................................................20

         4.3 Capitalization......................................................................................21

         4.4 Consents and Approvals..............................................................................21

         4.5 Reports; Financial Statements; Absence of Changes...................................................21

         4.6 Registration Statement..............................................................................22

         4.7 No Finders..........................................................................................22

         4.8 Absence of Undisclosed Liabilities..................................................................23

         4.9 Compliance with Laws................................................................................23

         4.10 Litigation.........................................................................................23

         4.11 Absence of Material Adverse Changes................................................................23

         4.12 Reorganization.....................................................................................24

         4.13 Merger Filings.....................................................................................24

ARTICLE 5   COVENANTS ...........................................................................................24

         5.1 Conduct of Business of the Company..................................................................24

         5.2 Conduct of Business of Parent.......................................................................27

         5.3 No Solicitation.....................................................................................28

         5.4 Access and Information..............................................................................29

         5.5 Approval of Stockholders; Proxy Statement; Registration Statement...................................30

         5.6 Consents............................................................................................32

         5.7 Affiliates'Letters..................................................................................32

         5.8 Expenses............................................................................................33

         5.9 Further Actions.....................................................................................33

                                                        ii.

<PAGE>


         5.10 Regulatory Approvals...............................................................................33

         5.11 Certain Notifications..............................................................................34

         5.12 Voting of Shares...................................................................................34

         5.13 Stock Option Agreement.............................................................................34

         5.14 NYSE Listing Application...........................................................................34

         5.15 Indemnification....................................................................................35

         5.16 Letters of the Company's and Parent's Accountants..................................................36

         5.17 Subsidiary Shares..................................................................................36

         5.18 Benefit Plans and Employee Matters.................................................................36

         5.19 Obligations of Merger Subsidiary...................................................................37

         5.20 Plan of Reorganization.............................................................................37

         5.21 Pooling............................................................................................37

         5.22 Tax Matters........................................................................................37

ARTICLE 6   CLOSING CONDITIONS...................................................................................38

         6.1 Conditions to Obligations of Parent, Merger Subsidiary, and the Company.............................38

         6.2 Conditions to Obligations of Parent and Merger Subsidiary...........................................38

         6.3 Conditions to Obligation of the Company.............................................................39

ARTICLE 7   TERMINATION AND ABANDONMENT..........................................................................40

         7.1 Termination.........................................................................................40

         7.2 Effect of Termination...............................................................................42

ARTICLE 8   MISCELLANEOUS........................................................................................44

         8.1 Amendment and Modification..........................................................................44

         8.2 Waiver of Compliance; Consents......................................................................44

         8.3 Investigation; Survival of Representations and Warranties...........................................45

         8.4 Notices.............................................................................................45

         8.5 Assignment..........................................................................................46

         8.6 Governing Law.......................................................................................46

         8.7 Counterparts........................................................................................46

         8.8 Knowledge...........................................................................................46

         8.9 Interpretation......................................................................................46

         8.10 Publicity..........................................................................................47

         8.11 Entire Agreement...................................................................................47

                                                        iii.

<PAGE>


         8.12 Severability.......................................................................................47

         8.13 Specific Performance...............................................................................47
</TABLE>



EXHIBITS:

Exhibit A:     Certificate of Incorporation
Exhibit B:     Form of Affiliate's Letter
Exhibit C:     Form of Agreement to Facilitate Merger
Exhibit D:     Form of Stock Option Agreement

                                      iv.

<PAGE>


                          AGREEMENT AND PLAN OF MERGER

         THIS  AGREEMENT  is  dated  as of  November  29,  1998,  by  and  among
Medtronic,  Inc.,  a  Minnesota  corporation  ("Parent"),  MAV Merger  Corp.,  a
Delaware   corporation   and  wholly  owned   subsidiary   of  Parent   ("Merger
Subsidiary"),  and Arterial Vascular  Engineering,  Inc., a Delaware corporation
(the "Company").

         WHEREAS, the Boards of Directors of Parent, Merger Subsidiary,  and the
Company have approved the merger of Merger  Subsidiary with and into the Company
(the  "Merger")  upon the terms and subject to the  conditions set forth herein;
and

         WHEREAS,  for federal  income tax  purposes,  it is  intended  that the
Merger shall qualify as a reorganization within the meaning of Section 368(a) of
the Internal Revenue Code of 1986, as amended (the "Code"); and

         WHEREAS, for accounting purposes,  it is intended that the Merger shall
be  recorded  as a  "pooling  of  interests"  within the  meaning of  Accounting
Principles Board Opinion No. 16, and the rules and regulations of the Securities
and Exchange Commission (the "SEC"); and

         WHEREAS,  as a  condition  to, and upon or  immediately  following  the
execution of, this Agreement, Parent and the Company are entering into the Stock
Option Agreement described in Section 5.13 hereof; and

         WHEREAS,  the parties  hereto  desire to make certain  representations,
warranties,  and agreements in connection  with the Merger and also to prescribe
various conditions to the Merger;

         NOW,  THEREFORE,  in  consideration  of the foregoing  premises and the
mutual representations,  warranties, covenants, and agreements contained herein,
the parties hereto agree as follows:


                                    ARTICLE 1

                        THE MERGER; CONVERSION OF SHARES

         1.1 The Merger.  Subject to the terms and conditions of this Agreement,
at the  Effective  Time (as defined in Section 1.2  hereof),  Merger  Subsidiary
shall be merged with and into the Company in accordance  with the  provisions of
the  Delaware  General  Corporation  Law (the  "DGCL"),  whereupon  the separate
corporate  existence of Merger  Subsidiary  shall cease,  and the Company  shall
continue as the surviving  corporation (the "Surviving  Corporation").  From and
after the  Effective  Time,  the  Surviving  Corporation  shall  possess all the
rights,   privileges,   powers,  and  franchises  and  be  subject  to  all  the
restrictions, disabilities, and duties of the Company and Merger Subsidiary, all
as more fully described in the DGCL.

         1.2 Effective Time. As soon as practicable after each of the conditions
set forth in  Article 6 has been  satisfied  or waived on the  Closing  Date (as
defined in Section 2.1),  the Company will file, or cause to be filed,  with the
Secretary  of State of the State of  Delaware  a  Certificate  of



<PAGE>


Merger for the Merger,  which  Certificate  shall be in the form required by and
executed in accordance  with the  applicable  provisions of the DGCL. The Merger
shall  become  effective  at the time  such  filing  is made or, if agreed to by
Parent and the Company,  such later time or date set forth in the Certificate of
Merger (the "Effective Time").

         1.3  Conversion  of Shares.  At the  Effective  Time,  by virtue of the
Merger  and  without  any  action  on the part of the  Company,  Parent,  Merger
Subsidiary  or any holder of any share of capital stock of the Company or Merger
Subsidiary:

                  (a) Each share of common stock of the Company, $.001 par value
per share ("Company  Common Stock"),  issued and outstanding  immediately  prior
thereto  (except  for shares  referred  to in Section  1.3(b)  hereof)  shall be
converted,  subject  to  Section  1.5(f),  into the right to receive a number of
shares  (carried out to five decimal  places and rounded up if the sixth decimal
place is 5 or greater) (the "Conversion  Ratio") of common stock of Parent,  par
value $.10 per share (the "Parent Common Stock"),  based on the average (rounded
to the nearest full cent,  with the cents  rounded up if the third decimal place
is 5 or more) of the daily closing sale prices of a share of Parent Common Stock
as reported on the New York Stock Exchange ("NYSE")  Composite Tape, as reported
in The Wall Street Journal (the "Parent  Average Stock Price"),  for the fifteen
consecutive  NYSE trading days ending on and including the NYSE trading day that
is two NYSE trading days prior to the Company  Stockholders  Meeting (as defined
in Section 5.5) (the "Determination Period"), determined as follows:

                           (i)  if  the  Parent  Average  Stock  Price  for  the
                  Determination  Period is  greater  than  $61.20  and less than
                  $74.80,  then the Conversion  Ratio shall equal $54.00 divided
                  by the  Parent  Average  Stock  Price  for  the  Determination
                  Period;

                           (ii)  if the  Parent  Average  Stock  Price  for  the
                  Determination Period is equal to or less than $61.20, then the
                  Conversion Ratio shall equal 0.88235; or

                           (iii)  if the  Parent  Average  Stock  Price  for the
                  Determination  Period is equal to or greater than $74.80, then
                  the Conversion Ratio shall equal 0.72193.

                  An  appropriate  adjustment to the  Conversion  Ratio shall be
made in the event that,  prior to the Effective Time, the outstanding  shares of
Company Common Stock,  without new consideration,  are changed into or exchanged
for a  different  number  of  shares  or a  different  class  by  reason  of any
reorganization,   reclassification,   subdivision,  recapitalization,  split-up,
combination,  exchange of shares,  stock dividend or other similar  transaction.
Notwithstanding  the  foregoing,  nothing  in this  section  shall be  deemed to
constitute  authorization  or  permission  for or consent  from Parent or Merger
Subsidiary    to    any    reorganization,     reclassification,    subdivision,
recapitalization,  split-up,  combination,  exchange of shares, or other similar
transaction.

                  (b) Each share of Company Common Stock issued and  outstanding
immediately  prior to the  Effective  Time that is held in the  treasury  of the
Company or is then owned beneficially or of record by Parent, Merger Subsidiary,
or any direct or indirect wholly owned

                                       2.

<PAGE>


subsidiary  of  Parent or the  Company  shall be  canceled  in  accordance  with
applicable  laws without payment of any  consideration  therefor and without any
conversion thereof.

                  (c) Each  share of any  other  class of  capital  stock of the
Company (other than Company Common Stock) shall be canceled  without  payment of
any consideration therefor and without any conversion thereof.

                  (d) Each share of common stock of Merger Subsidiary, par value
$.01 per share  ("Merger  Subsidiary  Common  Stock"),  issued  and  outstanding
immediately prior to the Effective Time shall be converted into one share of the
common stock of the Surviving Corporation,  par value $.01 per share ("Surviving
Corporation Common Stock").

         1.4 No Appraisal  Rights.  The parties  acknowledge  that,  pursuant to
Section 262 of the DGCL, no holders of Company Common Stock shall have appraisal
rights in connection with the Merger.

         1.5  Exchange of Company Common Stock.

                  (a) At or prior to the  Effective  Time,  Parent  shall  cause
Parent's  stock transfer agent or such other person as Parent may appoint and is
reasonably  satisfactory  to the Company to act as exchange agent (the "Exchange
Agent")  hereunder.  As promptly as practicable after the Effective Time, Parent
shall  cause the  Exchange  Agent to mail to each  holder of record  (other than
Parent, Merger Subsidiary, the Company, or any wholly owned subsidiary of Parent
or the Company) of a certificate or certificates  that immediately  prior to the
Effective Time represented  outstanding shares of Company Common Stock ("Company
Certificates")  a form letter of transmittal  (which shall specify that delivery
shall be  effective,  and risk of loss and title to the  Company  Certificate(s)
shall pass,  only upon  delivery of the Company  Certificate(s)  to the Exchange
Agent) and  instructions for such holder's use in effecting the surrender of the
Company Certificates in exchange for certificates  representing shares of Parent
Common Stock and cash in lieu of any fractional shares.

                  (b) As soon as  practicable  after  the  Effective  Time,  the
Exchange  Agent shall  distribute to holders of shares of Company  Common Stock,
upon  surrender to the Exchange  Agent of one or more Company  Certificates  for
cancellation,  together with a duly-executed  letter of transmittal,  (i) one or
more certificates representing the number of whole shares of Parent Common Stock
into which the shares represented by the Company  Certificate(s) shall have been
converted  pursuant to Section  1.3(a),  (ii) a bank check in the amount of cash
into which the shares represented by the Company  Certificate(s) shall have been
converted pursuant to Section 1.5(f) (relating to fractional shares),  and (iii)
any dividends or other  distributions to which such holder is entitled  pursuant
to Section  1.5(c),  and the  Company  Certificate(s)  so  surrendered  shall be
canceled.  In the event of a transfer of ownership of Company  Common Stock that
is not  registered  in the  transfer  records  of the  Company,  it  shall  be a
condition  to the  issuance  of shares of Parent  Common  Stock that the Company
Certificate(s)  so  surrendered  shall be properly  endorsed or be  otherwise in
proper form for transfer and that such transferee  shall (i) pay to the Exchange
Agent any transfer or other taxes required or (ii) establish to the satisfaction
of the Exchange Agent that such tax has been paid or is not payable.

                                       3.

<PAGE>


                  (c)  Holders of Company  Common  Stock will be entitled to any
dividends or other distributions  pertaining to the Parent Common Stock received
in exchange therefor that become payable to persons who are holders of record of
Parent  Common Stock as of a record date that follows the  Effective  Time,  but
only  after they have  surrendered  their  Company  Certificates  for  exchange.
Subject to the effect,  if any, of  applicable  law,  the  Exchange  Agent shall
receive,  hold, and remit any such dividends or other distributions to each such
record holder entitled thereto,  without interest, at the time that such Company
Certificates  are  surrendered  to the Exchange  Agent for exchange.  Holders of
Company  Common  Stock will not be  entitled,  however,  to  dividends  or other
distributions  that become payable before or after the Effective Time to persons
who were  holders of record of Parent  Common  Stock as of a record date that is
prior to the Effective Time.

                  (d) All certificates  evidencing shares of Parent Common Stock
that are issued  upon the  surrender  for  exchange of Company  Certificates  in
accordance  with the terms hereof,  together  with any cash paid for  fractional
shares pursuant to Section 1.5(f) hereof, shall be deemed to have been issued in
full satisfaction of all rights pertaining to the shares of Company Common Stock
represented by the surrendered Company Certificates.

                  (e)  After  the  Effective  Time,  there  shall be no  further
registration  of  transfers  on  the  stock  transfer  books  of  the  Surviving
Corporation  of the  shares  of  Company  Common  Stock  that  were  outstanding
immediately  prior to the Effective Time. If, after the Effective Time,  Company
Certificates   representing   such  shares  are   presented  to  the   Surviving
Corporation, they shall be canceled and exchanged as provided in this Article 1.
As of the  Effective  Time,  the  holders of Company  Certificates  representing
shares of Company Common Stock shall cease to have any rights as stockholders of
the Company,  except such rights,  if any, as they may have pursuant to the DGCL
or this Agreement. Except as provided above, until such Company Certificates are
surrendered  for  exchange,  each  such  Company  Certificate  shall,  after the
Effective  Time,  represent  for all  purposes  only  the  right  to  receive  a
certificate  or  certificates  evidencing  the number of whole  shares of Parent
Common  Stock  into which the shares of  Company  Common  Stock  shall have been
converted pursuant to the Merger as provided in Section 1.3(a) hereof, the right
to receive the cash value of any  fraction of a share of Parent  Common Stock as
provided  in Section  1.5(f)  hereof and the right to receive any  dividends  or
distributions as provided in Section 1.5(c).

                  (f)  No  fractional  shares  of  Parent  Common  Stock  and no
certificates or scrip therefor, or other evidence of ownership thereof, shall be
issued in  connection  with the Merger,  no dividend  or other  distribution  of
Parent shall relate to any fractional share, and such fractional share interests
shall not entitle the owner thereof to vote or to any rights of a shareholder of
Parent.  All  fractional  shares  of  Parent  Common  Stock to which a holder of
Company Common Stock  immediately prior to the Effective Time would otherwise be
entitled,  at the  Effective  Time,  shall be  aggregated  if and to the  extent
multiple  Company  Certificates  of such  holder are  submitted  together to the
Exchange Agent. If a fractional  share results from such  aggregation,  then (in
lieu of such  fractional  share) the Exchange  Agent shall pay to each holder of
shares of Company  Common Stock who otherwise  would be entitled to receive such
fractional  share of Parent  Common Stock an amount of cash  (without  interest)
determined by multiplying (i) the

                                       4.

<PAGE>


closing  sale price of a share of Parent  Common  Stock as  reported on the NYSE
Composite Tape, as reported in The Wall Street  Journal,  on the Closing Date by
(ii) the  fractional  share of Parent  Common  Stock to which such holder  would
otherwise be entitled. Parent will make available to the Exchange Agent any cash
necessary for this purpose.

                  (g) In the  event any  Company  Certificates  shall  have been
lost,  stolen,  or destroyed,  the Exchange Agent shall issue in respect of such
lost, stolen, or destroyed Company Certificates, upon the making of an affidavit
of that fact by the holder thereof, such shares of Parent Common Stock, cash for
fractional shares, if any, and dividends or other distributions,  if any, as may
be required pursuant to this Article 1; provided,  however,  that Parent may, in
its discretion and as a condition precedent to the issuance thereof, require the
owner of such lost,  stolen, or destroyed Company  Certificate to deliver a bond
in such sum as Parent may reasonably  direct as indemnity against any claim that
may be made against  Parent or the  Exchange  Agent with respect to such Company
Certificate alleged to have been lost, stolen, or destroyed.

                  (h) The  parties  hereto  acknowledge  that  each  certificate
representing  a share of Parent  Common Stock issued  pursuant to this Article 1
will, pursuant to the Rights Agreement dated as of June 27, 1991, between Parent
and Norwest Bank Minnesota,  N.A. (the "Parent Rights Plan"), also represent the
number of Parent  preferred share purchase  rights  associated with one share of
Parent Common Stock at the Effective Time.

         1.6  Exchange of Merger  Subsidiary  Common  Stock.  From and after the
Effective Time, each outstanding  certificate previously  representing shares of
Merger  Subsidiary  Common  Stock  shall be deemed for all  purposes to evidence
ownership  of and to  represent  the number of shares of  Surviving  Corporation
Common Stock into which such shares of Merger Subsidiary Common Stock shall have
been  converted.  Promptly after the Effective  Time, the Surviving  Corporation
shall issue to Parent a stock  certificate  or  certificates  representing  such
shares of Surviving  Corporation Common Stock in exchange for the certificate or
certificates that formerly represented shares of Merger Subsidiary Common Stock,
which shall be canceled.

         1.7  Stock Options.

                  (a)  Except as  provided  in (c)  below  with  respect  to the
Company's 1997 Employee  Stock  Purchase Plan, as amended (the "Company  ESPP"),
each option to purchase  shares of Company  Common Stock that is  outstanding at
the  Effective  Time,  whether or not  exercisable  and whether or not vested (a
"Company  Option")  shall,  without any action on the part of the Company or the
holder  thereof,  be  assumed  by Parent in such  manner  that  Parent  (i) is a
corporation  "assuming a stock option in a transaction  to which Section  424(a)
applies"  within  the  meaning of  Section  424 of the Code and the  regulations
thereunder  or (ii) to the extent that Section 424 of the Code does not apply to
any such Company  Option,  would be such a  corporation  were Section 424 of the
Code applicable to such Company  Option.  From and after the Effective Time, all
references  to the  Company in the Company  Options  shall be deemed to refer to
Parent. The Company Options assumed by Parent shall be exercisable upon the same
terms  and  conditions  as  under  the  Company  Options  (including  provisions
regarding  vesting and the  acceleration  thereof)  except that (i) such Company
Options shall entitle the holder to

                                       5.

<PAGE>


purchase from Parent the number of shares of Parent  Common Stock  (rounded down
to the  nearest  whole  number of such  shares)  that  equals the product of the
Conversion  Ratio  multiplied  by the number of shares of Company  Common  Stock
subject to such Company Option immediately prior to the Effective Time, (ii) the
option  exercise  price  per  share of Parent  Common  Stock  shall be an amount
(rounded up to the nearest  full cent)  equal to the option  exercise  price per
share of Company Common Stock in effect  immediately prior to the Effective Time
divided by the Conversion Ratio, and (iii) the Company Options shall vest to the
extent  required  pursuant to the current terms of such Company Options or other
agreements  as described in Section 1.7 of the Company  Disclosure  Schedule (as
defined  below);  provided  that if such  vesting  of  Company  Options or other
provisions with respect to the Company Options would jeopardize the Merger being
accounted for as a "pooling of interests",  then the Company  shall,  subject to
Parent's  written consent not to be unreasonably  withheld,  use reasonable best
efforts to prevent  such  vesting or effect of other  provisions.  Except to the
extent  required  pursuant to the current terms of such Company Options or other
agreements  as described in Section 1.7 of the Company  Disclosure  Schedule (as
defined below),  the Company shall not take any action to accelerate the vesting
of any Company  Options.  Prior to the Effective Time, the Board of Directors of
Parent shall, for purposes of Rule 16b-3(d)(1)  promulgated  under Section 16 of
the Securities  Exchange Act of 1934, and the rules and  regulations  thereunder
(the "1934  Act"),  specifically  approve  (i) the  assumption  by Parent of the
Company  Options and (ii) the  issuance of Parent  Common Stock in the Merger to
directors, officers and stockholders of the Company subject to Section 16 of the
1934 Act.

                  (b) As  promptly  as  practicable  after the  Effective  Time,
Parent  shall  issue to each  holder  of a Company  Option a written  instrument
informing  such holder of the  assumption by Parent of such Company  Option.  As
soon as reasonably  practicable  after the  Effective  Time (and in any event no
later than five business days after the Effective Time,  provided current option
information  required  therefor is delivered to Parent at the  Effective  Time),
Parent shall file a registration  statement on Form S-8 (or any successor  form)
with respect to the shares of Parent Common Stock subject to Company Options and
shall  use  commercially   reasonable  efforts  to  maintain  such  registration
statement (or any successor  form),  including the current status of any related
prospectus  or  prospectuses,   for  so  long  as  the  Company  Options  remain
outstanding.  In addition,  Parent shall use commercially  reasonable efforts to
cause the shares of Parent Common Stock subject to Company  Options to be listed
on the NYSE and such other  exchanges  as Parent shall  determine.  Parent shall
take all corporate action necessary to reserve for issuance a sufficient  number
of shares of Parent Common Stock for delivery  upon exercise of Company  Options
pursuant to the terms set forth in this  Section  1.7.  Parent shall comply with
the terms of the Company  Stock Option Plans (as defined in Section 3.3) and use
commercially  reasonable  efforts to cause those Company Options which qualified
as incentive stock options prior to the Effective Time to continue to qualify as
incentive stock options immediately after the Effective Time.

                  (c) The  current  offerings  in process as of the date of this
Agreement under the Company ESPP shall  continue,  and shares shall be issued to
participants   thereunder  on  the  next  currently   scheduled  purchase  dates
thereunder occurring after the date hereof as provided under, and subject to the
terms and conditions of, the Company ESPP. The Company may, consistent

                                       6.

<PAGE>


with past practice,  commence a new offering period under the Company ESPP on or
after  February 1, 1999 and prior to the Effective Time at an exercise price for
such offering not less than as is required  under the Company ESPP.  Immediately
prior to the Effective Time,  pursuant to Section 12(b) of the Company ESPP, all
offerings under the Company ESPP shall be terminated, and each participant shall
be deemed to have  purchased  immediately  prior to the  Effective  Time, to the
extent of payroll deductions accumulated by such participant as of such offering
period end,  the number of whole  shares of Company  Common Stock at a per share
price  determined  pursuant  to the  provisions  of the Company  ESPP,  and each
participant  shall receive a cash payment equal to the balance,  if any, of such
accumulated payroll deductions  remaining after such purchase of such shares. As
of the Effective Time, each participant shall receive,  by virtue of the Merger,
the  number of whole  shares of Parent  Common  Stock  into  which the shares of
Company Common Stock such  participant  has so purchased  under the Company ESPP
have been converted pursuant to the Merger as provided in Section 1.3(a) hereof,
plus the cash  value  of any  fraction  of a share  of  Parent  Common  Stock as
provided in Section  1.5(f)  hereof,  plus any  dividends  or  distributions  as
provided in Section 1.5(c).  The Company ESPP and all purchase rights thereunder
shall terminate effective as of the Effective Time.

         1.8 Capitalization  Changes. If, between the date of this Agreement and
the Effective  Time,  the  outstanding  shares of Parent Common Stock shall have
been changed into or exchanged  for a different  number of shares or a different
class  by  reason   of  any   reorganization,   reclassification,   subdivision,
recapitalization,  split-up, combination,  exchange of shares, stock dividend or
other similar transaction,  the Conversion Ratio and all per-share price amounts
and calculations set forth in this Agreement shall be appropriately  adjusted to
reflect such reorganization,  reclassification,  subdivision,  recapitalization,
split-up,  combination,  exchange of shares,  stock  dividend  or other  similar
transaction.

         1.9  Certificate of  Incorporation  of the Surviving  Corporation.  The
Certificate of Incorporation of the Company,  as in effect  immediately prior to
the Effective  Time,  shall be amended to read as set forth on EXHIBIT A to this
Agreement.

         1.10  Bylaws  of  the  Surviving  Corporation.  The  Bylaws  of  Merger
Subsidiary, as in effect immediately prior to the Effective Time, shall, subject
to Section  5.15, be the Bylaws of the Surviving  Corporation  until  thereafter
amended in accordance with applicable law.

         1.11 Directors and Officers of the Surviving Corporation. The directors
and officers of Merger Subsidiary  immediately prior to the Effective Time shall
be the directors and officers,  respectively, of the Surviving Corporation until
their respective successors shall be duly elected and qualified.


                                    ARTICLE 2

                                     CLOSING

         2.1 Time and  Place.  Subject  to the  satisfaction  or  waiver  of the
provisions  of Article 6, the closing of the Merger (the  "Closing")  shall take
place  at  1:00  p.m.,  local  time,  on the  date  that  the  Required  Company
Stockholder Vote (as defined in Section 3.2) is obtained,  or as soon

                                       7.

<PAGE>


thereafter as, and in any event no later than the second business day after, all
conditions  to Closing  have been  satisfied  or  waived,  or on such other date
and/or at such other time as Parent and the Company may mutually agree. The date
on which the  Closing  actually  occurs is herein  referred  to as the  "Closing
Date." The Closing  shall take place at the  corporate  headquarters  offices of
Parent,  or at such  other  place or in such other  manner  (e.g.,  by  telecopy
exchange of signature  pages with originals to follow by overnight  delivery) as
the parties hereto may agree.

         2.2 Filings at the Closing.  At the Closing,  subject to the provisions
of Article  6,  Parent,  Merger  Subsidiary,  and the  Company  shall  cause the
Certificate  of Merger to be filed in accordance  with the provisions of Section
252 of the DGCL,  and take any and all other  lawful  actions and do any and all
other lawful things necessary to cause the Merger to become effective.


                                    ARTICLE 3

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         Except:  (i) as set  forth in a  document  of even  date  herewith  and
concurrently  delivered herewith (the "Company  Disclosure  Schedule");  (ii) as
specifically described through express disclosure of current, specific facts set
forth in the Company's Annual Report on Form 10-K for the fiscal year ended June
30,  1998 or in any other  filing by the  Company  with the SEC (as  defined  in
Section 3.4) filed after the date of filing such Form 10-K and prior to the date
hereof and the Company's  Registration Statement on Form S-4 with respect to the
acquisition of World Medical (as defined below) as amended or supplemented prior
to the date hereof and  previously  delivered to Parent;  (iii) as  specifically
described  in the  schedules  referred  to in Section 3.1 of the Stock and Asset
Purchase  Agreement  dated July 9, 1998 between C. R. Bard, Inc. and the Company
(the "Bard Schedules"),  as amended or supplemented prior to the date hereof and
previously  delivered  to  Parent;  or (iv)  as  specifically  described  in the
Disclosure Schedule delivered pursuant to Article 2 of the Agreement and Plan of
Merger  and   Reorganization   dated  April  10,  1998  between   World  Medical
Manufacturing Corporation ("World Medical"), Walleye Acquisition Corporation and
the Company (the "World Medical Schedules"), as amended or supplemented prior to
the date hereof and previously delivered to Parent (for purposes of clauses (i),
(ii), (iii) and (iv) above, disclosures in the Company Disclosure Schedule, such
Company SEC filings,  the Bard Schedules or the World Medical Schedules shall be
deemed to qualify or limit only those particular  representations and warranties
set forth in this  Article  3 to which  the  relevancy  of such  disclosures  is
readily apparent);  the Company hereby makes the following  representations  and
warranties to Parent and Merger Subsidiary:

         3.1  Organization.  The  Company  and each  subsidiary  of the  Company
(referred  to herein as a  "Subsidiary")  is an entity duly  organized,  validly
existing, and in good standing (where such concept is recognized) under the laws
of its respective  jurisdiction of organization and has all requisite  corporate
power and authority to own,  lease,  and operate its  properties and to carry on
its  business  as  now  being  conducted,  except  where  the  failure  to be so
organized,  existing  or in good  standing or to have such  corporate  power and
authority would not,  individually or in the aggregate,  have a Company Material
Adverse  Effect (as defined  below).  The Company  and each  Subsidiary  is duly
qualified and in good standing to do business in each  jurisdiction in which the

                                       8.

<PAGE>


property  owned,  leased,  or  operated  by it or the  nature  of  the  business
conducted by it makes such qualification necessary,  except where the failure to
be so qualified or in good standing  could not  reasonably be expected to have a
Company  Material Adverse Effect (as defined below).  "Company  Material Adverse
Effect"  means an  effect  that,  in the  aggregate  with  other  favorable  and
unfavorable  effects arising from breaches of the Company's  representations and
warranties,  is or would reasonably at the time of such effect be expected to be
materially  adverse:  (i) to the business,  results of  operation,  or financial
condition of the Company and its  Subsidiaries,  considered as a whole;  (ii) to
the ability of the Surviving  Corporation to conduct such business, as presently
conducted,  following the Effective  Time or the ability of Parent to derive the
benefits of owning all of the stock of the  Surviving  Corporation;  or (iii) to
the  Company's  ability to perform any of its  material  obligations  under this
Agreement or to consummate the Merger,  except in each case for any such effects
resulting  from  or  arising  out  of (i)  this  Agreement  or the  transactions
contemplated  by this Agreement or the  announcement  or pendency of the Merger,
(ii)  any  occurrence  or  condition  affecting  the  medical  device  or  stent
industries  generally,  or (iii) any changes in general economic,  regulatory or
political  conditions,  and provided,  that the probability of the Company being
indemnified  by C.R.  Bard,  Inc.  against  such  effects or  related  losses or
expenses   (assuming  a  claim  therefor  is  asserted  as  soon  as  reasonably
practicable)  shall be taken into  account for purposes of  determining  whether
there has been a Company Material Adverse Effect. The jurisdictions in which the
Company  and  each  Subsidiary  are  incorporated  are  listed  in  the  Company
Disclosure  Schedule.  The Company has heretofore delivered or made available to
Parent or its  advisers  complete  and  accurate  copies of the  Certificate  of
Incorporation  and Bylaws of the Company,  as  currently  in effect,  and of the
organizational  documents and  agreements  defining the rights of the Company or
any Subsidiary  with respect to any material  joint  ventures,  partnerships  or
other  business in which the  Company  owns less than  substantially  all of the
outstanding equity interest. As of the date hereof,  neither the Company nor any
Subsidiary, directly or indirectly, owns or controls or has any material equity,
partnership,   or  other  similar   ownership   interest  in  any   corporation,
partnership,  joint  venture,  or other  business  association or entity that is
material to the Company and its Subsidiaries, considered as a whole.

         3.2  Authorization.  The Company has all necessary  corporate power and
authority to execute and deliver this  Agreement  and,  subject to obtaining the
necessary   approval  of  its  stockholders,   to  consummate  the  transactions
contemplated hereby. The execution and delivery by the Company of this Agreement
and the other  agreements  contemplated  hereby to which the Company is a party,
and the consummation by the Company of the transactions  contemplated hereby and
thereby,  have been duly and validly  authorized  and approved by the  Company's
Board of Directors,  no other  corporate  proceedings on the part of the Company
are  necessary to  authorize  this  Agreement,  and,  subject to  obtaining  the
approval and adoption of this Agreement and approval of the Merger by a majority
of the shares of the Company  Common Stock  outstanding as of the record date of
the Company's  stockholder meeting (the "Required Company Stockholder Vote"), no
other corporate action on the part of the Company is necessary to consummate the
transactions  contemplated hereby. The Merger has been declared advisable by the
Board of  Directors  of the Company.  This  Agreement  has been duly and validly
executed and  delivered by the Company and,  assuming due execution and delivery
by the other parties hereto, constitutes the valid and binding obligation of the
Company,  enforceable against the Company in accordance with its terms,  subject
to laws of general  application  relating  to

                                       9.

<PAGE>


bankruptcy,  insolvency,  and the relief of debtors  and rules of law  governing
specific performance, injunctive relief, or other equitable remedies.

         3.3  Capitalization.  As of the close of business on November 25, 1998,
the authorized  capital stock of the Company consisted of (i) 300,000,000 shares
of Company Common Stock,  $.001 par value per share,  of which  64,360,781  were
issued and  outstanding  and 60,000 shares were held in the Company's  treasury,
and (ii) 5,000,000 shares of Company Preferred Stock, $.001 par value per share,
of which  1,000,000 have been designated as Series A Preferred Stock and none of
which were issued or outstanding.  All issued and outstanding  shares of capital
stock of each Subsidiary are owned,  beneficially and of record, by the Company,
free and clear of any mortgage, pledge, security interest,  encumbrance, lien or
other charge of any kind  ("Lien")  that would  materially  affect the Company's
interest in such shares.  All issued and  outstanding  shares of Company  Common
Stock have been validly issued, are fully paid and  nonassessable,  and have not
been issued in  violation  of and are not  currently  subject to any  preemptive
rights.  Except for (i)  Company  Options to purchase  an  aggregate  of 346,332
shares of Company Common Stock not granted  pursuant to any Company Stock Option
Plan (as defined  below) and that are  listed,  together  with their  respective
exercise prices,  in the Company  Disclosure  Schedule,  (ii) Company Options to
purchase an  aggregate  of  3,901,835  shares of Company  Common Stock that were
granted  pursuant to the Company's 1996 Equity  Incentive Plan and the Company's
1996 Non-Employee Directors' Stock Option Plan (collectively, the "Company Stock
Option  Plans") and that are listed,  together  with their  respective  exercise
prices, in the Company Disclosure Schedule,  (iii) the rights to purchase shares
of Company  Common Stock under the Company ESPP  (estimated to be  approximately
250,000 shares as of the next purchase date under the Company ESPP, based on the
current  contribution  rates of the  participants  for the current  Company ESPP
offerings  in  process  as of the date of this  Agreement)  and (iv) the  rights
outstanding  pursuant to the  Company  Rights  Agreement  (as defined in Section
3.19),  as of November 25, 1998,  there were not any  outstanding  or authorized
subscriptions,   options,   warrants,  calls,  rights,  convertible  securities,
commitments,  restrictions,   arrangements,  or  any  other  agreements  of  any
character to which the Company or any Subsidiary  was a party that,  directly or
indirectly,  (A) obligated the Company or any  Subsidiary to issue any shares of
capital stock or any securities convertible into, or exercisable or exchangeable
for, or evidencing the right to subscribe for, any shares of capital stock,  (B)
called for or related to the sale,  pledge,  transfer,  or other  disposition or
encumbrance by the Company or any Subsidiary of any shares of its capital stock,
or (C) to the knowledge of the Company, related to the voting or control of such
capital  stock.  The  Company  Disclosure  Schedule  sets forth a  complete  and
accurate  list of all  stock  options,  warrants,  and other  rights to  acquire
Company Common Stock that were  outstanding  as of November 25, 1998,  including
the name of the holder, the date of grant,  acquisition price, number of shares,
exercisability  schedule,  and, in the case of options, the type of option under
the Code. No consent of holders or  participants  under the Company Stock Option
Plans or the Company  ESPP is required  to carry out the  provisions  of Section
1.7. All actions,  if any, required on the part of the Company under the Company
Stock  Option  Plans or the Company  ESPP to allow for the  treatment of Company
Options and the Company ESPP as is provided in Section 1.7,  have been, or prior
to the  Closing  will be,  validly  taken by the  Company.  In no event will the
aggregate number of shares of Company Common Stock  outstanding at the Effective
Time (including all shares subject to then outstanding  Company

                                      10.

<PAGE>


Options or other  rights to acquire or  commitments  to issue  shares of Company
stock, other than the Stock Option Agreement  referenced in Section 5.13) exceed
the sum of (w) the  outstanding  shares of Company Common Stock described in the
first  sentence of this Section 3.3, plus (x) any shares of Company Common Stock
issued upon the exercise of outstanding options to purchase Company Common Stock
identified in Section 3.3, plus (y) any shares of Company Common Stock issued by
the Company  upon the exercise of rights  under the Company  ESPP,  plus (z) any
additional shares identified in Section 3.3 of the Company  Disclosure  Schedule
or permitted to be issued under Section 5.1(b) hereof.

         3.4 Reports and Financial Statements.  The Company has filed all forms,
reports, registration statements, and other documents required to be filed by it
with the Securities and Exchange  Commission ("SEC") since January 1, 1995 (such
forms,  reports,  registration  statements,  and  documents,  together  with any
amendments thereto,  are referred to as the "Company SEC Filings").  As of their
respective  dates,  the  Company  SEC  Filings  (i)  complied  as to form in all
material  respects with the  applicable  requirements  of the  Securities Act of
1933,  and the rules and  regulations  thereunder  (the "1933 Act") and the 1934
Act,  as the case may be, and (ii) did not  contain  any untrue  statement  of a
material fact or omit to state a material fact required to be stated  therein or
necessary to make the  statements  made therein,  in light of the  circumstances
under which they were made, not  misleading.  The audited  financial  statements
included or incorporated by reference in the Company SEC Filings,  including but
not limited to the Company's  audited  financial  statements at and for the year
ended June 30, 1998 (the "Company June 30, 1998 Financials"),  and the unaudited
interim financial  statements at and for periods  commencing on or after July 1,
1998, included or incorporated by reference in the forms, reports,  registration
statements  and  other  documents  filed  by the  Company  with the SEC (i) were
prepared in accordance with generally accepted accounting principles (except, in
the case of unaudited statements,  as permitted by Form 10-Q filed with the SEC)
applied on a  consistent  basis  during the periods  involved  (except as may be
indicated  therein or in the notes thereto),  subject,  in the case of unaudited
interim  financial  statements,   to  the  absence  of  notes  and  to  year-end
adjustments, (ii) complied as of their respective dates in all material respects
with applicable accounting  requirements and the published rules and regulations
of the SEC with  respect  thereto,  and (iii)  fairly  present  in all  material
respects the consolidated financial position of the Company and its consolidated
subsidiaries as of the dates thereof and the  consolidated  income,  cash flows,
and  changes  in  stockholders'  equity  of the  Company  and  its  consolidated
subsidiaries  for the periods  involved,  except as otherwise  noted therein and
subject,  in  the  case  of  unaudited  statements,  to  normal  year-end  audit
adjustments.  The statements of operations  included in the audited or unaudited
interim financial statements in the Company SEC Filings do not contain any items
of special or nonrecurring income or any other income not earned in the ordinary
course of business  required  to be  disclosed  separately  in  accordance  with
generally accepted accounting  principles,  except as expressly specified in the
applicable statement of operations or notes thereto.

         3.5 Absence of  Undisclosed  Liabilities.  To the best of the Company's
knowledge,  neither  the  Company  nor any  Subsidiary  has any  liabilities  or
obligations of any nature (whether absolute,  accrued,  contingent or otherwise)
of the type required to be reflected on or reserved  against in, or disclosed in
the  notes  to, a balance  sheet  prepared  in  accordance  with U.S.

                                      11.

<PAGE>


generally accepted accounting  principles except: (a) liabilities or obligations
that are accrued or reserved against in the audited  consolidated  balance sheet
of the Company and its  consolidated  subsidiaries as of June 30, 1998 contained
in the Company June 30, 1998 Financials (the "Company Audited Balance Sheet") or
in the unaudited  consolidated balance sheet of the Company and its consolidated
subsidiaries  as of  September  30, 1998  contained in the  Company's  Quarterly
Report  on Form  10-Q for the  fiscal  quarter  ended  September  30,  1998 (the
"Company  Interim  Balance  Sheet") or  referred  to in the notes  thereto,  (b)
liabilities incurred in the ordinary course of business since September 30, 1998
and (c) liabilities or obligations that could not reasonably be expected to have
a Company Material Adverse Effect.

         3.6 Consents and Approvals. Except for: (i) any applicable requirements
of the 1933 Act, the 1934 Act,  state  securities  laws,  the  Hart-Scott-Rodino
Antitrust  Improvements  Act of 1976 and the  regulations  thereunder  (the "HSR
Act"), and the antitrust,  competition,  foreign investment,  or similar laws of
any foreign  countries  or  supranational  commissions  or boards  that  require
pre-merger  notifications  or filings with respect to the Merger  (collectively,
"Foreign Merger Laws"), (ii) obtaining the Required Company Stockholder Vote and
any stockholder  vote necessary under the requirements of Nasdaq with respect to
issuance  of  shares of  Company  Common  Stock  pursuant  to the  Stock  Option
Agreement  described  in  Section  5.13,  (iii) the filing  and  recordation  of
appropriate merger documents as required by the DGCL, the execution and delivery
by the Company of this Agreement and the other agreements contemplated hereby to
which  the  Company  is a  party  and the  consummation  by the  Company  of the
transactions contemplated hereby and thereby will not: (a) violate any provision
of the Certificate or Articles of  Incorporation or Bylaws of the Company or any
Subsidiary; (b) violate any material statute, rule, regulation, order, or decree
of any federal,  state,  local,  or foreign  governmental  or regulatory body or
authority (including,  but not limited to, the Food and Drug Administration (the
"FDA")) (a "Governmental Body") or any nongovernmental self-regulatory agency by
which the Company or any Subsidiary,  or any of their  respective  properties or
assets  may be bound;  (c)  require  any filing by the  Company  with or permit,
consent, or approval to be obtained by the Company from any Governmental Body or
any  nongovernmental  self-regulatory  agency; or (d) result in any violation or
breach of, or constitute (with or without due notice or lapse of time or both) a
default under, result in the loss of any material benefit under, or give rise to
any right of  termination,  cancellation,  increased  payments,  or acceleration
under,  or result in the creation of any Lien (as defined in Section 3.3) on any
of the properties or assets of the Company or any Subsidiary  under,  any of the
terms,  conditions,  or  provisions  of any  note,  bond,  mortgage,  indenture,
license,  franchise,  permit,  authorization,  agreement, or other instrument or
obligation to which the Company or any Subsidiary is a party,  or by which it or
any of its properties or assets may be bound, except, in the case of clauses (c)
and (d), for any such  filings,  permits,  consents or approvals or  violations,
breaches,  defaults,  or other occurrences that could not reasonably be expected
to prevent or delay consummation of any of the transactions  contemplated hereby
in any material  respect,  or otherwise  prevent the Company from performing its
obligations  under  this  Agreement  in any  material  respect,  and  could  not
reasonably be expected to have a Company Material Adverse Effect. Section 3.6 of
the Company  Disclosure  Schedule lists each note,  bond,  mortgage,  indenture,
license,  franchise,  permit,  authorization,  agreement, or other instrument or
obligation to which the Company or any Subsidiary is a party,  or by which it or
any of its  properties  or  assets  may be bound and  which is  material  to the

                                      12.

<PAGE>


Company and its  Subsidiaries,  considered as a whole,  under or with respect to
which  the  transactions  contemplated  by this  Agreement  will  result  in any
material  violation or breach of, or  constitute  (with or without due notice or
lapse of time or  both) a  material  default  under,  result  in the loss of any
material  benefit  under,  or give rise to any  material  right of  termination,
cancellation,  increased  payments,  or  acceleration  under,  or  result in the
creation of any material Lien on any of the material properties or assets of the
Company or any Subsidiary.

         3.7 Compliance with Laws.  Neither the Company nor any Subsidiary is in
default or violation of any applicable  federal,  state, local, or foreign laws,
ordinances,  regulations,  interpretations,   judgments,  decrees,  injunctions,
permits, licenses,  certificates,  governmental  requirements,  orders, or other
similar items of any court or other  Governmental  Body (and including  those of
any nongovernmental  self-regulatory agency and including  environmental laws or
regulations),  except for such defaults or violations  that could not reasonably
be  expected to have a Company  Material  Adverse  Effect.  The Company and each
Subsidiary have timely filed or otherwise provided all  registrations,  reports,
data, and other information and applications with respect to its medical device,
pharmaceutical,  consumer,  health  care,  and  other  governmentally  regulated
products  (the  "Regulated  Products")  required  to be filed with or  otherwise
provided to the FDA or any other  Governmental  Body with  jurisdiction over the
manufacture, use, or sale of the Regulated Products, and all regulatory licenses
or approvals in respect  thereof are in full force and effect,  except where the
failure to file timely  such  registrations,  reports,  data,  information,  and
applications  or the failure to have such  licenses and  approvals in full force
and effect could not reasonably be expected to have a Company  Material  Adverse
Effect.

         3.8  Litigation.

                  (a)  As  of  the   date  of  this   Agreement,   there  is  no
Merger-Related   Proceeding  pending,  or  to  the  knowledge  of  the  Company,
threatened  in writing  against the Company.  (For  purposes of this  Agreement,
"Merger-Related  Proceeding" shall mean any meritorious  asserted claim, action,
suit, proceeding, or to the Company's knowledge,  governmental  investigation or
governmental  review of any kind: (i) challenging or seeking to prevent,  enjoin
or delay  the  Merger  or any of the  other  transactions  contemplated  by this
Agreement,  or (ii)  seeking  material  damages  from the  Company or any of its
Subsidiaries  or from Parent or any of its  subsidiaries  in connection with the
consummation or anticipated consummation of the Merger.)

                  (b) There are no meritorious asserted claims,  actions, suits,
proceedings or, to the knowledge of the Company,  governmental investigations or
governmental  reviews of any kind  pending,  or to the knowledge of the Company,
threatened  in writing  against  the Company or any  Subsidiary  or any asset or
property of the Company or any Subsidiary, other than Merger-Related Proceedings
and  except  for  such  claims,   actions,  suits,   proceedings,   governmental
investigations or governmental  reviews that could not reasonably be expected to
have a Company Material Adverse Effect.

         3.9 Absence of Material Adverse Changes.  Between June 30, 1998 and the
date hereof,  there has not been any (a) Company  Material  Adverse Effect;  (b)
damage, destruction, or loss,

                                      13.

<PAGE>


not covered by  insurance,  that could  reasonably be expected to have a Company
Material Adverse Effect; (c) material change by the Company or any Subsidiary in
accounting methods or principles used for financial reporting  purposes,  except
as required  by a change in  applicable  law or  generally  accepted  accounting
principles and concurred with by the Company's  independent public  accountants;
or (d) agreement,  whether in writing or otherwise, to take any action described
or referenced in this Section 3.9. To the knowledge of the Company, between June
30, 1998 and the date of this Agreement,  there have been no events, occurrences
or  developments  with respect to the  business or assets of World  Medical that
could,  assuming the  Company's  acquisition  of World  Medical,  reasonably  be
expected to have a Company Material Adverse Effect.

         3.10 Officers,  Directors and Employees.  Prior to the date hereof, the
Company has provided to Parent a list that completely and accurately sets forth,
as of the date hereof,  the name and current  annual salary rate of each current
officer of the Company whose total remuneration for the last fiscal year was, or
for the  current  fiscal year has been set at, in excess of  $150,000,  together
with a summary of the bonuses, commissions,  additional compensation,  and other
like cash benefits,  if any, paid or payable to such persons for the last fiscal
year and proposed for the current fiscal year. The Company  Disclosure  Schedule
completely and accurately sets forth (i) the names of all former officers of the
Company whose employment with the Company has terminated  either  voluntarily or
involuntarily  during the 12-month period  preceding the date of this Agreement;
and (ii) the names of the officers (with all positions and titles indicated) and
directors of the Company as of the date hereof.  Except as could not  reasonably
be expected  to have a Company  Material  Adverse  Effect:  (i) no unfair  labor
practice  complaint  against the Company or any Subsidiary is pending before the
National  Labor  Relations  Board,  and there is no labor  strike,  slowdown  or
stoppage  pending or, to the  knowledge  of the Company,  threatened  in writing
against or involving the Company or any Subsidiary;  (ii) no unionizing  efforts
have, to the knowledge of the Company,  been made by employees of the Company or
any  Subsidiary,  (iii) neither the Company nor any  Subsidiary is a party to or
subject to any collective  bargaining  agreement,  and no collective  bargaining
agreement is currently being  negotiated by the Company or any  Subsidiary;  and
(iv) there is no labor  dispute  pending or, to the  knowledge  of the  Company,
threatened in writing, between the Company or any Subsidiary and its employees.

         3.11  Taxes.  Except  for such  matters  that  would not have a Company
Material Adverse Effect, (i) the Company and each Subsidiary have filed, or have
obtained  extensions to file (which extensions have not expired without filing),
all state,  local,  United  States,  foreign,  or other tax  reports and returns
required to be filed by any of them,  (ii) the Company and each  Subsidiary have
duly paid, or accrued on their books of account,  all taxes (including estimated
taxes) shown as due on such reports and returns (or such extension requests), or
assessed  against them, other than taxes being contested in good faith in proper
proceedings,  and (iii) to the Company's knowledge, the liabilities and reserves
for taxes  reflected on the Company Audited Balance Sheet or the Company Interim
Balance  Sheet are  adequate  to cover all taxes  payable by the Company and its
Subsidiaries  for all taxable  periods and portions  thereof ending on or before
the dates thereof. To the Company's knowledge, no tax audits are pending against
and no claims for taxes have been  received  in writing by the Company or any of
its Subsidiaries,  other than audits and claims that are not reasonably expected
to  have a  Company  Material  Adverse  Effect.

                                      14.

<PAGE>


Neither  the  Company  nor any  Subsidiary  has,  with  regard to any  assets or
property held, acquired or to be acquired by any of them, filed a consent to the
application  of Section  341(f)(2) of the Code.  Neither the Company nor, to the
knowledge of the Company,  any of its  Subsidiaries  has taken or agreed to take
any action  (other  than  actions  contemplated  by this  Agreement)  that would
prevent the Merger from  constituting a reorganization  qualifying under Section
368(a) of the Code.  The  Company is not aware of any  agreement,  plan or other
circumstance  that would  prevent the Merger from so  qualifying  under  Section
368(a) of the Code.

         For the purposes of this Agreement, "tax" shall mean and include taxes,
duties,  withholdings,  assessments,  and  charges  assessed  or  imposed by any
governmental  authority (together with any interest,  penalties and additions to
tax imposed with  respect  thereto),  including  but not limited to all federal,
state, county, local, and foreign income,  profits,  gross receipts,  import, ad
valorem,  real and personal  property,  franchise,  license,  sales,  use, value
added, stamp, transfer, withholding,  payroll, employment, excise, custom, duty,
and any other taxes,  obligations and assessments of any kind whatsoever;  "tax"
shall also  include  any  liability  for taxes  arising as a result of being (or
ceasing to be) a member of any affiliated,  consolidated,  combined,  or unitary
group as well as any liability for taxes under any tax allocation,  tax sharing,
tax indemnity, or similar agreement.

         3.12 Contracts.  The Company Disclosure Schedule lists, and the Company
has heretofore furnished to Parent complete and accurate copies of (or, if oral,
the Company  Disclosure  Schedule states all material  provisions of), (a) every
employment,  material  consulting,  severance or change of control  agreement or
arrangement for the benefit of any director,  officer, employee, other person or
stockholder of the Company or any Subsidiary or any affiliate  thereof in effect
as of the date of this  Agreement  to which the Company or any  Subsidiary  is a
party or by which the Company or any  Subsidiary  or any of their  properties or
assets is bound,  and (b) every contract with  physicians,  scientific  advisory
board members or material consultants in effect as of the date of this Agreement
to which the Company or any Subsidiary is a party or by which the Company or any
Subsidiary or any of their  properties  or assets is bound.  Neither the Company
nor any Subsidiary is in material violation of or in default under any contract,
plan,  agreement,  understanding,  arrangement or obligation that is material to
the  Company  and its  Subsidiaries  considered  as a  whole,  except  for  such
violations or defaults  that could not  reasonably be expected to have a Company
Material Adverse Effect.  As of the date of this Agreement,  neither the Company
nor any Subsidiary is a party to any contract,  plan, agreement,  understanding,
arrangement or obligation (i) which materially restricts the Company's, or after
the Merger would  materially  restrict the Surviving  Corporation's or Parent's,
ability to conduct any  material  line of  business,  (ii) which  imposes on the
Company or any Subsidiary material obligations  (including,  without limitation,
to pay material  milestone  payments or material  license fees) not reflected in
the Company's financial statements included within the Company's SEC Filings, or
(iii)  that  would be  required  to be filed  with the SEC in a filing  to which
paragraph  (b)(10) of Item 601 of Regulation S-K of the Rules and Regulations of
the SEC is applicable,  which has not been so filed. To the Company's knowledge,
as of the date  hereof,  World  Medical  is not a party to any  contract,  plan,
agreement,  understanding,  arrangement or obligation which materially restricts
World  Medical's,  or after the Merger would  materially  restrict the Surviving
Corporation's or Parent's, ability to conduct any material line of business.

                                      15.

<PAGE>


         3.13  Intellectual  Property  Rights.  For  purposes  of this  Section,
"Intellectual  Property" shall mean patents,  registered trademarks,  registered
trade  names,   registered  service  marks,   registered  copyrights,   and  all
applications  for or  registrations  of any of the foregoing.  As of the date of
this Agreement, the Company Disclosure Schedule contains a complete and accurate
list of all material  Intellectual  Property owned by or licensed exclusively or
(with  respect to patents  material to the products or operations of the Company
which would be infringed by the Company,  any  Subsidiary or their  products but
for such license) non-exclusively to the Company or any Subsidiary (the "Company
Intellectual  Property").  The  Company  Intellectual  Property  is  owned by or
licensed to the Company or a  Subsidiary  free and clear of any Lien (as defined
in Section 3.3) that would  materially  adversely  affect the  Company's  rights
thereunder.  No claim is being asserted and, to the knowledge of the Company, no
person is threatening  in a writing  delivered to the Company to assert a claim,
with  respect  to the use of the  Company  Intellectual  Property  owned  by the
Company or  challenging  or  questioning  the validity or  effectiveness  of any
license or agreement with respect to any Company Intellectual  Property,  except
for such claims that could not reasonably be expected to have a Company Material
Adverse Effect. To the knowledge of the Company,  neither the use by the Company
or any Subsidiary of the Company Intellectual Property in the present conduct of
its  business  nor any  product  or service  of the  Company  or any  Subsidiary
infringes on the valid  intellectual  property  rights of any person in a manner
that could  reasonably be expected to have a Company  Material  Adverse  Effect.
Except as could not  reasonably be expected to have a Company  Material  Adverse
Effect, (i) all Company  Intellectual  Property listed in the Company Disclosure
Schedule  that is owned by the Company  has the status  indicated  therein  and,
unless provided  otherwise,  all applications are still pending in good standing
and have not been  abandoned,  and (ii) to the  knowledge  of the  Company,  the
Company  Intellectual  Property  is valid  and is not  being  challenged  in any
judicial  or  administrative   (excluding  any  patent-office  or  registration)
proceeding.  To the  knowledge  of the  Company,  no person  or entity  nor such
person's or entity's business or products has infringed,  or misappropriated any
Company Intellectual  Property, or currently is infringing,  or misappropriating
any Company Intellectual Property, except as could not reasonably be expected to
have a Company Material Adverse Effect.

         3.14 Benefit Plans.

                  (a)  Neither  the   Company  nor  any   Subsidiary   sponsors,
maintains,  contributes  to, or has,  during the five year period  ending on the
date  of  this  Agreement,  sponsored,  maintained,  or  contributed  to or been
required to contribute to, any "employee pension benefit plan" ("Pension Plan"),
as such term is  defined  in  Section  3(2) of the  Employee  Retirement  Income
Security Act of 1974, as amended ("ERISA"), including, solely for the purpose of
this subsection, a plan excluded from coverage by Section 4(b)(5) of ERISA. Each
such Pension Plan  presently  maintained by the Company or any Subsidiary is, in
all material  respects,  in compliance with applicable  provisions of ERISA, the
Code, and other  applicable law and the Company or such Subsidiary has performed
all of its obligations  under such Pension Plan except for such obligations that
could not reasonably be expected to have a Company Material Adverse Effect.

                                      16.

<PAGE>


                  (b)  Neither  the   Company  nor  any   Subsidiary   sponsors,
maintains,  contributes  to, or has,  during the five year period  ending on the
date  of  this  Agreement,  sponsored,  maintained,  or  contributed  to or been
required  to  contribute  to,  any  Pension  Plan that is subject to Title IV of
ERISA.

                  (c)  Neither  the   Company  nor  any   Subsidiary   sponsors,
maintains,  or  contributes  to any "employee  welfare  benefit plan"  ("Welfare
Plan"),  as such term is defined in Section  3(1) of ERISA,  whether  insured or
otherwise,  and any such Welfare Plan presently maintained by the Company or any
Subsidiary is, in all material  respects,  in compliance  with the provisions of
ERISA, the Code, and all other applicable laws,  including,  but not limited to,
Section 4980B of the Code and the regulations thereunder,  and Part 6 of Title I
of ERISA.  Neither the Company nor any Subsidiary has established or contributed
to any  "voluntary  employees'  beneficiary  association"  within the meaning of
Section 501(c)(9) of the Code.

                  (d) Neither the Company nor any Subsidiary currently maintains
or  contributes  to any  oral or  written  bonus,  profit-sharing,  compensation
(incentive  or  otherwise),  commission,  stock  option,  or  other  stock-based
compensation,  retirement,  severance,  change  of  control,  vacation,  sick or
parental leave,  dependent care, deferred compensation,  cafeteria,  disability,
hospitalization, medical, death, retiree, insurance, or other benefit or welfare
or other similar plan, policy, agreement,  trust, fund, or arrangement providing
for the remuneration or benefit of all or any employees,  directors or any other
person,  that is neither a Pension  Plan nor a Welfare Plan  (collectively,  the
"Compensation Plans").

                  (e)  With  respect  to the  Pension  Plans,  Welfare  Plans or
Compensation  Plans, no event has occurred and, to the knowledge of the Company,
there exists no condition or set of circumstances,  in connection with which the
Company or any of its  Subsidiaries  could be subject to any liability under the
terms of such Plans (other than the payment of benefits thereunder),  ERISA, the
Code or any other  applicable  law which could  reasonably be expected to have a
Company Material Adverse Effect.

                  (f)  The  Internal   Revenue  Service  has  issued   favorable
determination  letters with respect to all Company and Subsidiary  Pension Plans
that are intended to be qualified  under Section 401(a) of the Code. The Company
has  provided to Parent the  written  documents  setting  forth the terms of all
Pension Plans,  Welfare Plans,  Compensation Plans, and related agreements,  and
complete  and  accurate  copies of all annual  reports  (Form  5500),  favorable
determination  letters,  current  summary  plan  descriptions,  and all employee
handbooks  or  manuals.  The  Company  has  provided to Parent (i) copies of all
employment agreements with officers of any of the Company, its U.S. Subsidiaries
or, to the extent reasonably available, the Company's non-U.S.  Subsidiaries (or
copies of forms of agreements setting forth representative  employment terms and
conditions);  (ii)  copies  of all  severance,  bonus or  incentive  agreements,
programs  and  policies of any of the Company,  any U.S.  Subsidiary  or, to the
extent  reasonably  available,  the  Company's  non-U.S.  Subsidiaries  with  or
relating  to any of its  employees;  and (iii)  copies of all  plans,  programs,
agreements and other arrangements of any of the Company, any U.S. Subsidiary or,
to the extent reasonably available, the Company's non-U.S.  Subsidiaries with or
relating to any of its  employees  which contain  change in control  provisions.
With respect to any items that

                                      17.

<PAGE>


would be described in the immediately  preceding  sentence but for the fact that
such copies relate to non-U.S.  Subsidiaries and are not reasonably available to
the Company, the Company (i) shall deliver copies thereof to Parent prior to the
Effective  Time, and (ii) represents and warrants to Parent that such items will
not,  individually  or in the  aggregate,  be  material  to the  Company and its
Subsidiaries.

                  (g) The  execution by the Company of, and  performance  by the
Company of the  transactions  contemplated  in, this  Agreement will not (either
alone or upon the occurrence of any additional or subsequent  events) constitute
an event under any Pension  Plan,  Welfare  Plan,  Compensation  Plan,  or other
arrangement  that will  result  in any  payment  (whether  of  severance  pay or
otherwise),  acceleration,  forgiveness of indebtedness,  vesting, distribution,
increase in benefits,  or obligation to fund  benefits.  No amount that could be
received (whether in cash or property or the vesting of property) as a result of
any of the transactions contemplated by this Agreement by any employee, officer,
or  director  of the  Company or any of its  affiliates  who is a  "disqualified
individual"  (as such term is defined in Prop.  Treas.  Reg.  Section  1.280G-1)
under any Pension Plan,  Welfare Plan, or Compensation  Plan currently in effect
would be an  "excess  parachute  payment"  (as such term is  defined  in Section
280G(b)(1) of the Code).

         3.15 Minute Books.  The Company has previously made available to Parent
or its  representatives  all of its minutes of meetings of and corporate actions
or written consents by the stockholders,  Board of Directors,  and committees of
the Board of Directors of the Company.

         3.16 No Finders.  No act of the Company or any  Subsidiary has given or
will give rise to any claim  against any of the  parties  hereto for a brokerage
commission,  finder's  fee,  or  other  like  payment  in  connection  with  the
transactions  contemplated  herein,  except payments in the amounts specified in
the Company  Disclosure  Schedule to those parties  identified  thereon who have
acted as a finder  for the  Company  or have been  retained  by the  Company  as
financial  advisors  pursuant to the agreements or other documents  described in
the  Company  Disclosure  Schedule,  copies of which have been  provided or made
available to Parent or its advisors prior to the date of this Agreement.

         3.17 Proxy  Statement.  The Proxy  Statement/Prospectus  (as defined in
Section 5.5 hereof) and any amendments or supplements  thereto will comply as to
form  in all  material  respects  with  all  applicable  laws,  and  none of the
information  supplied by the Company specifically for inclusion or incorporation
therein  or in any  amendments  or  supplements  thereto,  or in  any  schedules
required to be filed with the SEC in connection therewith, will, at the date the
Proxy  Statement/Prospectus  (or any amendment or  supplement  thereto) is first
mailed to  stockholders,  or at the time of the Company  Stockholders'  Meeting,
contain any untrue  statement  of a material  fact or omit to state any material
fact required to be stated  therein or necessary in order to make the statements
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading; provided, however, that no representation or warranty is made by the
Company  with  respect to  information  relating to Parent or any  affiliate  of
Parent   supplied   by  Parent   specifically   for   inclusion   in  the  Proxy
Statement/Prospectus.

                                      18.

<PAGE>


         3.18  Fairness  Opinion.  The Company has  received an opinion  from SG
Cowen Securities Corporation to the effect that, as of the date of such opinion,
the Conversion  Ratio is fair, from a financial point of view, to the holders of
Company  Common  Stock,  and the Company  will  promptly  deliver a copy of such
opinion to Parent.

         3.19 State Takeover Laws; Rights Plan.

                  (a) The Board of  Directors  of the Company has  approved  the
transactions contemplated by this Agreement, such that the provisions of Section
203 (entitled "Business Combinations with Interested  Shareholders") of the DGCL
will not apply to this Agreement or the  Agreements to Facilitate  Merger or the
Stock  Option  Agreement  or any  of the  transactions  contemplated  hereby  or
thereby.

                  (b) The  Company  has  taken all  actions  and  completed  all
amendments,  if any,  necessary or appropriate so that (i) the Rights  Agreement
dated as of February 26, 1997, as amended,  between the Company and  BankBoston,
N.A. (the "Company  Rights  Agreement"),  is  inapplicable  to the  transactions
contemplated by the Agreements to Facilitate  Merger, the Stock Option Agreement
and this  Agreement,  (ii) the  execution  of this  Agreement,  the Stock Option
Agreement,  and the Agreements to Facilitate Merger, and the consummation of the
transactions  contemplated hereby and thereby, do not and will not (w) result in
Parent  being an  "Acquiring  Person"  (as such term is defined  in the  Company
Rights  Agreement),  (x) result in the  ability of any  person to  exercise  any
Rights under the Company Rights  Agreement,  (y) enable or require the Rights to
separate  from the shares of Company  Common Stock to which they are attached or
to be triggered or become exercisable, or (z) otherwise result in the occurrence
of a "Distribution Date" or "Shares Acquisition Date" (as such terms are defined
in the Company Rights  Agreement),  and (iii) immediately prior to the Effective
Time, the Rights under the Company Rights Agreement  shall,  without any payment
by the Company or Parent,  expire with neither the Company nor Parent having any
obligations  under, and no holder of Rights having any rights under, the Company
Rights Agreement.

         3.20 Merger  Filings.  The  information as to the Company or any of its
affiliates or  stockholders  included in the Company's  filing,  or submitted to
Parent and Merger  Subsidiary for inclusion in their filing, if any, required to
be submitted  under the HSR Act or under any Foreign  Merger Laws shall be true,
correct,  and complete in all material respects and shall comply in all material
respects  with  the  applicable  requirements  of the HSR  Act,  the  rules  and
regulations issued by the Federal Trade Commission pursuant thereto, and Foreign
Merger Laws.


                                    ARTICLE 4

                         REPRESENTATIONS AND WARRANTIES
                         OF PARENT AND MERGER SUBSIDIARY

         Except  (i) as set  forth  in a  document  of even  date  herewith  and
concurrently  delivered herewith (the "Parent  Disclosure  Schedule") or (ii) as
specifically described through express disclosure of current, specific facts set
forth in Parent's Annual Report on Form 10-K for the fiscal year ended April 30,
1998 or in any  other  filing by  Parent  with the SEC  filed  after the date

                                      19.

<PAGE>


of filing such Form 10-K and prior to the date  hereof (for  purposes of clauses
(i) and (ii)  above,  disclosures  in the Parent  Disclosure  Schedule  and such
Parent SEC  filings  shall be deemed to  qualify or limit only those  particular
representations  and  warranties  set  forth  in this  Article  4 to  which  the
relevancy of such disclosures is readily apparent), Parent and Merger Subsidiary
hereby jointly and severally make the following  representations  and warranties
to the Company:

         4.1  Organization.  Parent is a  corporation  duly  organized,  validly
existing, and in good standing under the laws of the State of Minnesota.  Merger
Subsidiary is a corporation  duly organized and validly  existing under the laws
of the State of Delaware. Each of Parent and Merger Subsidiary has all requisite
corporate power and authority to own,  lease,  and operate its properties and to
carry on its business as now being conducted,  except where the failure to be so
organized,  existing  or in good  standing or to have such  corporate  power and
authority would not,  individually  or in the aggregate,  have a Parent Material
Adverse Effect (as defined below).  Each of Parent and Merger Subsidiary is duly
qualified and in good standing to do business in each  jurisdiction in which the
property  owned,  leased,  or  operated  by it or the  nature  of  the  business
conducted by it makes such qualification necessary,  except where the failure to
be so qualified or in good standing  could not  reasonably be expected to have a
Parent Material  Adverse Effect (as defined  below).  "Parent  Material  Adverse
Effect"  means an  effect  that,  in the  aggregate  with  other  favorable  and
unfavorable  effects  arising from breaches of Parent's and Merger  Subsidiary's
representations  and  warranties,  is or  would  reasonably  at the time of such
effect be expected to be materially  adverse:  (i) to the  business,  results of
operation, or financial condition of Parent and its subsidiaries,  considered as
a whole, or (ii) to Parent's ability to perform any of its material  obligations
under this  Agreement or to consummate  the Merger,  except in each case for any
such  effects  resulting  from  or  arising  out of (i)  this  Agreement  or the
transactions  contemplated by this Agreement or the  announcement or pendency of
the Merger,  (ii) any  occurrence  or  condition  affecting  the medical  device
industry generally or affecting  Parent's principal market sector generally,  or
(iii) any  changes in general  economic,  regulatory  or  political  conditions.
Parent has heretofore delivered or made available to the Company or its advisors
complete and  accurate  copies of the  Articles of  Incorporation  and Bylaws of
Parent, as currently in effect.

         4.2  Authorization.  Each  of  Parent  and  Merger  Subsidiary  has all
necessary  corporate  power and authority to execute and deliver this  Agreement
and to  consummate  the  transactions  contemplated  hereby.  The  execution and
delivery  by  Parent  and  Merger  Subsidiary  of this  Agreement  and the other
agreements  contemplated hereby to which Parent or Merger Subsidiary is a party,
and the  consummation  by  Parent  and  Merger  Subsidiary  of the  transactions
contemplated  hereby and  thereby,  have been duly and  validly  authorized  and
approved  by the Boards of  Directors  of Parent and  Merger  Subsidiary  and by
Parent as the sole  shareholder  of Merger  Subsidiary,  and no other  corporate
proceedings on the part of Parent and Merger Subsidiary, and no vote, consent or
approval of Parent's shareholders,  are necessary to authorize this Agreement or
to consummate the transactions contemplated hereby. The Merger has been declared
advisable by the Board of Directors of Merger  Subsidiary.  This  Agreement  has
been duly and  validly  executed  and  delivered  by each of Parent  and  Merger
Subsidiary and, assuming due execution and delivery by the Company,  constitutes
the valid and binding  obligation of Parent and Merger  Subsidiary,  enforceable
against each of them in  accordance  with its terms,

                                      20.

<PAGE>


subject to laws of general application relating to bankruptcy,  insolvency,  and
the  relief  of  debtors  and  rules  of  law  governing  specific  performance,
injunctive relief, or other equitable remedies.

         4.3  Capitalization.  As of October 23, 1998,  the  authorized  capital
stock of Parent  consisted of (a) 800,000,000  shares of Common Stock with a par
value of $.10 per share,  of which  there  were  489,262,955  shares  issued and
outstanding and no shares held in Parent's treasury, and (b) 2,500,000 shares of
Preferred  Stock  with a par value of $1.00 per  share,  of which  there were no
shares issued and outstanding. The authorized capital stock of Merger Subsidiary
consists of 2,500 shares of Merger  Subsidiary  Common  Stock,  100 of which are
issued and outstanding and owned by Parent. All issued and outstanding shares of
Parent  Common Stock and Merger  Subsidiary  Common Stock are, and the shares of
Parent Common Stock to be issued and delivered in the Merger pursuant to Article
1 hereof shall be, at the time of issuance and delivery,  validly issued,  fully
paid, nonassessable,  and free of preemptive rights. The shares of Parent Common
Stock to be issued  and  delivered  in the Merger  pursuant  to Article 1 hereof
shall be registered  under the 1933 Act and duly listed for trading on the NYSE,
subject to official notice of issuance.

         4.4 Consents and Approvals.  Except for (i) any applicable requirements
of the 1933 Act, the 1934 Act, state securities laws, the NYSE, the HSR Act, and
Foreign Merger Laws, and (ii) the filing and  recordation of appropriate  merger
documents  as required by the DGCL,  the  execution  and  delivery by Parent and
Merger Subsidiary of this Agreement and the other agreements contemplated hereby
to which Parent and Merger  Subsidiary are parties,  and the consummation of the
transactions contemplated hereby and thereby will not: (a) violate any provision
of the  Certificate or Articles of  Incorporation  or Bylaws of Parent or Merger
Subsidiary; (b) violate any material statute, rule, regulation, order, or decree
of any Governmental Body or any nongovernmental  self-regulatory agency by which
Parent  or any of its  subsidiaries  or any of their  respective  properties  or
assets may be bound; (c) require any filing by Parent or Merger  Subsidiary with
or permit,  consent,  or approval to be obtained by Parent or Merger  Subsidiary
from any (Governmental Body or any  nongovernmental  self-regulatory  agency; or
(d) result in any  violation  or breach of, or  constitute  (with or without due
notice  or lapse of time or both) a  default  under,  result  in the loss of any
material benefit under, or give rise to any right of termination,  cancellation,
increased payments, or acceleration under, or result in the creation of any Lien
on any of the properties or assets of Parent or its  subsidiaries  under, any of
the terms,  conditions,  or provisions of any note, bond,  mortgage,  indenture,
license,  franchise,  permit,  agreement,  or other  instrument or obligation to
which Parent or any of its  subsidiaries  is a party, or by which any of them or
any of their respective  properties or assets may be bound,  except, in the case
of clauses (c) and (d), for any such filings,  permits, consents or approvals or
violations,  breaches,  defaults, or other occurrences that could not reasonably
be  expected  to  prevent  or  delay  consummation  of any  of  the  transaction
contemplated  hereby in any material  respect,  or otherwise prevent Parent from
performing its  obligations  under this Agreement in any material  respect,  and
could not reasonably be expected to have a Parent Material Adverse Effect.

         4.5 Reports; Financial Statements; Absence of Changes. Parent has filed
all forms, reports,  registration statements, and other documents required to be
filed by it with the SEC since May 1, 1995 (such  forms,  reports,  registration
statements and other documents, together with any

                                      21.

<PAGE>


amendments  thereto,  are referred to as the "Parent SEC Filings").  As of their
respective dates, the Parent SEC Filings (i) complied as to form in all material
respects with the applicable  requirements  of the 1933 Act and the 1934 Act, as
the case may be, and (ii) did not  contain  any untrue  statement  of a material
fact or omit to state a material fact required to be stated therein or necessary
to make the statements made therein,  in light of the circumstances  under which
they were made, not misleading.  The audited  financial  statements  included or
incorporated  by reference in the Parent SEC Filings,  including but not limited
to Parent's  audited  financial  statements  at and for the year ended April 30,
1998 (the  "Parent  April  30,  1998  Financials"),  and the  unaudited  interim
financial  statements  at and for  periods  commencing  on or after  May 1, 1998
included  or  incorporated  by  reference  in the forms,  reports,  registration
statements and other documents filed by Parent with the SEC (i) were prepared in
accordance with generally accepted accounting principles (except, in the case of
unaudited statements, as permitted by Form 10-Q filed with the SEC) applied on a
consistent basis during the periods involved (except as may be indicated therein
or in the notes thereto)  subject,  in the case of unaudited  interim  financial
statements,  to the absence of notes and to year-end adjustments,  (ii) complied
as of their respective dates in all material respects with applicable accounting
requirements  and the published  rules and  regulations  of the SEC with respect
thereto,  and (iii)  fairly  present in all material  respects the  consolidated
financial  position of Parent and its consolidated  subsidiaries as of the dates
thereof and the  consolidated  income,  cash flows, and changes in shareholders'
equity of Parent and its  consolidated  subsidiaries  for the periods  involved,
except  as  otherwise  noted  therein  and  subject,  in the  case of  unaudited
statements,  to normal year-end audit adjustments.  The statements of operations
included in the audited or unaudited interim financial  statements in the Parent
SEC Filings do not contain  any items of special or  nonrecurring  income or any
other  income not  earned in the  ordinary  course of  business  required  to be
disclosed   separately  in  accordance   with  generally   accepted   accounting
principles,  except  as  expressly  specified  in the  applicable  statement  of
operations or notes thereto.

         4.6 Registration  Statement.  The Registration Statement (as defined in
Section 5.5 hereof) and any amendments or supplements  thereto will comply as to
form in all material  respects  with the 1933 Act,  and none of the  information
supplied by Parent specifically for inclusion or incorporation therein or in any
amendments or supplements thereto, or in any schedules required to be filed with
the SEC in connection  therewith,  will, at the time the Registration  Statement
becomes effective, at the date the Proxy  Statement/Prospectus (or any amendment
or supplement  thereto) is first mailed to  stockholders,  or at the time of the
Company  Stockholders'  Meeting,  or at the Effective  Time,  contain any untrue
statement of a material  fact or omit to state any material  fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading, provided, however,
that no representation or warranty is made by Parent with respect to information
supplied  by the  Company  or any  affiliate  of the  Company  specifically  for
inclusion in the Registration Statement.

         4.7 No Finders. No act of Parent or Merger Subsidiary has given or will
give  rise to any  claim  against  any of the  parties  hereto  for a  brokerage
commission,  finder's  fee,  or  other  like  payment  in  connection  with  the
transactions contemplated herein, except for payments to Goldman Sachs & Co. for
financial advisory services to Parent in connection herewith.

                                      22.

<PAGE>


         4.8  Absence  of  Undisclosed  Liabilities.  To the  best  of  Parent's
knowledge,  neither Parent nor any of its  subsidiaries  has any  liabilities or
obligations of any nature (whether absolute,  accrued,  contingent or otherwise)
of the type required to be reflected on or reserved  against in, or disclosed in
the  notes  to, a balance  sheet  prepared  in  accordance  with U.S.  generally
accepted  accounting  principles except: (a) liabilities or obligations that are
accrued or reserved against in the audited  consolidated balance of Parent as of
April  30,  1998  contained  in the  Parent  SEC  Filings  or in  the  unaudited
consolidated  balance sheet of Parent as of July 31, 1998  contained in Parent's
Quarterly  Report on Form 10-Q for the fiscal  quarter  ended  July 31,  1998 or
referred to in the notes  thereto,  (b)  liabilities  incurred  in the  ordinary
course of business since July 31, 1998 and (c)  liabilities or obligations  that
could not reasonably be expected to have a Parent Material Adverse Effect.

         4.9 Compliance with Laws. Neither Parent nor any of its subsidiaries is
in default or violation of any applicable federal, state, local or foreign laws,
ordinances,  regulations,  interpretations,   judgments,  decrees,  injunctions,
permits,  licenses,  certificates,  governmental  requirements,  orders or other
similar items of any court or other  Governmental  Body (and including  those of
any nongovernmental  self-regulatory agency and including  environmental laws or
regulations),  except for such defaults or violations  that could not reasonably
be expected to have a Parent  Material  Adverse  Effect.  Parent and each of its
subsidiaries has timely filed or otherwise provided all registrations,  reports,
data and other  information  and  applications  with  respect  to its  Regulated
Products required to be filed with or otherwise provided to the FDA or any other
Governmental  Body with  jurisdiction  over the manufacture,  use of sale of the
Regulated Products,  and all regulatory licenses or approvals in respect thereof
are in full force and  effect,  except  where the  failure to file  timely  such
registrations,  reports,  data,  information and  applications or the failure to
have such licenses and  approvals in full force and effect could not  reasonably
be expected to have a Parent Material Adverse Effect.

         4.10 Litigation.

                  (a)  As  of  the   date  of  this   Agreement,   there  is  no
Merger-Related  Proceeding pending, or to the knowledge of Parent, threatened in
writing against Parent.

                  (b) There are no meritorious asserted claims,  actions, suits,
proceedings  or to the  knowledge  of  Parent,  governmental  investigations  or
governmental  reviews  of any  kind  pending,  or to the  knowledge  of  Parent,
threatened in writing against Parent or any of its  subsidiaries or any asset or
property  of  Parent  or any  of its  subsidiaries,  other  than  Merger-Related
Proceedings   and  except  for  such  claims,   actions,   suits,   proceedings,
governmental investigations or governmental reviews that could not reasonably be
expected to have a Parent Material Adverse Effect.

         4.11 Absence of Material  Adverse  Changes.  Between April 30, 1998 and
the date hereof,  there has not been any (a) Parent Material Adverse Effect, (b)
damage,  destruction or loss, not covered by insurance, that could reasonably be
expected to have a Parent Material Adverse Effect, (c) material change by Parent
or any of  its  subsidiaries  in  accounting  methods  or  principles  used  for
financial reporting  purposes,  except as required by a change in applicable law

                                      23.

<PAGE>


or generally  accepted  accounting  principles  and  concurred  with by Parent's
independent  public  accountants,  or  (d)  agreement,  whether  in  writing  or
otherwise,  to take any action  described or referenced in this Section 4.11. To
the knowledge of Parent,  between April 30, 1998 and the date of this Agreement,
there have been no  events,  occurrences  or  developments  with  respect to the
business or assets of either AVECOR  Cardiovascular Inc. or Sofamor Danek Group,
Inc. that could, assuming Parent's acquisition of either such entity, reasonably
be expected to have a Parent Material Adverse Effect.

         4.12  Reorganization.  Neither  Parent nor, to the knowledge of Parent,
any of its  subsidiaries  has  taken or agreed to take any  action  (other  than
actions  contemplated  by this  Agreement)  that would  prevent  the Merger from
constituting  a  reorganization  qualifying  under  Section  368(a) of the Code.
Parent is not aware of any  agreement,  plan or other  circumstances  that would
prevent the Merger from so qualifying under Section 368(a) of the Code.

         4.13 Merger Filings. The information as to Parent and Merger Subsidiary
or any of their  affiliates  or  shareholders  included in Parent's  filing,  or
submitted  to the Company for  inclusion in its filing,  if any,  required to be
submitted  under the HSR Act or under any  Foreign  Merger  Laws  shall be true,
correct,  and complete in all material respects and shall comply in all material
respects  with  the  applicable  requirements  of the HSR  Act,  the  rules  and
regulations issued by the Federal Trade Commission pursuant thereto, and Foreign
Merger Laws.


                                    ARTICLE 5

                                    COVENANTS

         5.1 Conduct of Business of the Company.  Except as contemplated by this
Agreement  or as set forth in Section  5.1 of the Company  Disclosure  Schedule,
unless  Parent  shall  otherwise  consent in  writing  (such  consent  not to be
unreasonably  withheld  or  delayed),  during the  period  from the date of this
Agreement to the Effective Time, the Company and each  Subsidiary  will, and the
Company shall use commercially  reasonable efforts to cause to World Medical to,
(i) conduct its respective  operations,  to the extent commercially  reasonable,
according to its ordinary and usual course of business and consistent  with past
practice, and (ii) use commercially reasonable efforts to preserve substantially
intact its respective business organizations,  to keep available the services of
its respective officers and employees and to maintain satisfactory relationships
with licensors, licensees,  suppliers,  contractors,  distributors,  physicians,
consultants,  customers,  and others having material business relationships with
it. The  Company  will  promptly  advise  Parent of any  material  change in the
management,  present or planned business,  properties,  liabilities,  results of
operations,  or financial  condition of the Company or any material  Subsidiary.
The Company will,  prior to distributing  or otherwise  circulating any notices,
directives,  or other  communications  directed  to all or groups of  customers,
vendors,  employees,  distributors,  or  others  associated  with  its  business
relating to the transactions contemplated hereby or to the operation of business
after  consummation  of such  transactions,  consult with Parent and give Parent
reasonable  opportunity to comment  thereon.  Without limiting the generality of
the foregoing,  and except as otherwise expressly provided in or contemplated by
this  Agreement  or as set  forth  in  Section  5.1 of  the  Company  Disclosure

                                      24.

<PAGE>


Schedule,  from the date of this Agreement until the Effective Time, neither the
Company nor any  Subsidiary  will,  without the prior written  consent of Parent
(such consent not to be unreasonably withheld or delayed):

                  (a) amend its  Certificate  or Articles of  Incorporation  or,
pursuant to action by the Company's Board of Directors, amend its Bylaws;

                  (b) authorize for issuance,  issue,  sell,  pledge, or deliver
(whether  through the  issuance or granting  of  additional  options,  warrants,
commitments,  subscriptions,  rights to purchase, or otherwise) any stock of any
class or any  securities  convertible  into shares of stock of any class  (other
than,  so long as  treatment  of the  Merger as a pooling  of  interests  is not
reasonably  expected  by Parent's or the  Company's  independent  accounts to be
jeopardized,  the (i) issuance of shares of Company Common Stock pursuant to the
exercise of stock options  outstanding  on the date of this Agreement or granted
in accordance  with this  subsection  (b),  (ii) the  issuance,  in the ordinary
course of  business  and  consistent  with past  practice,  of stock  options to
purchase, at not less than the fair market value on the date of grant, up to the
number of shares  specified in Section 5.1 of the Company  Disclosure  Schedule,
and (iii)  subject  to the  limitations  set forth in Section  1.7(c),  grant of
purchase  rights  pursuant  to the Company  ESPP or the  issuance of shares upon
exercise of such purchase rights);

                  (c) split,  combine,  or reclassify  any shares of its capital
stock, declare, set aside, or pay any dividend or other distribution (whether in
cash,  stock, or property or any combination  thereof) in respect of its capital
stock;  or redeem or  otherwise  acquire any shares of its capital  stock or its
other securities (other than, so long as treatment of the Merger as a pooling of
interests is not jeopardized, pursuant to contractual agreements with employees,
directors or consultants existing as of the date of this Agreement); or amend or
alter any material term of any of its outstanding securities;

                  (d) other than indebtedness incurred in the ordinary course of
business  and  consistent  with  past  practice  and  other  than   intercompany
indebtedness,  create,  incur or assume any  indebtedness for borrowed money, or
assume,  guarantee,  endorse, or otherwise agree to become liable or responsible
for the obligations of any other person, or make any loans,  advances or capital
contributions  to, or  investments  in, any other  person;  or create,  incur or
assume  any Lien on any  material  asset  other  than any Lien  that  would  not
materially  adversely  affect the  Company's  or any  Subsidiary's  rights  with
respect thereto;

                  (e) (i) increase in any manner the  compensation of any of its
directors, officers, employees, or consultants, or accelerate the payment of any
such  compensation,  except in each case in the ordinary  course of business and
consistent with past practice  (including,  without limitation,  annual year end
increases  and  accelerated   payments  customarily  made  upon  termination  of
employment) or consistent with existing  contractual  commitments or as required
by applicable  law;  (ii) pay or accelerate or otherwise  modify in any material
respect the payment, vesting, exercisability, or other feature or requirement of
any pension,  retirement allowance,  severance, change of control, stock option,
or other  employee  benefit  to any of its  directors,  officers,  employees  or
consultants except as required by any existing plan, agreement,  or

                                      25.

<PAGE>


arrangement;  or (iii) except for normal  increases  in the  ordinary  course of
business in accordance  with its  customary  past  practices or consistent  with
existing  contractual  commitments  or as required by  applicable  laws,  commit
itself to any additional or increased pension, profit-sharing, bonus, incentive,
deferred compensation, group insurance, severance, change of control, retirement
or other  benefit,  plan,  agreement,  or  arrangement,  or to any employment or
consulting  agreement,  with or for the benefit of any  person,  or amend any of
such plans or any of such agreements in existence on the date hereof (except any
amendment  required by law or that would not materially  increase benefits under
the relevant plan);

                  (f) except in the ordinary  course of business and  consistent
with past practice or pursuant to contractual  obligations  existing on the date
hereof, sell, transfer, mortgage, or otherwise dispose of or encumber any assets
or  properties  material to the Company and its  Subsidiaries,  considered  as a
whole  other  than any Lien  that  would not  materially  adversely  affect  the
Company's  and  its  Subsidiaries'   rights  with  respect  to  such  assets  or
properties;

                  (g)   acquire   or  agree  to   acquire   (i)  by  merging  or
consolidating  with, or by purchasing a substantial portion of the assets of, or
by any  other  manner,  any  business  of any  corporation,  partnership,  joint
venture, association, or other business organization or division thereof or (ii)
any assets that are material,  individually or in the aggregate,  to the Company
and its  Subsidiaries,  considered as a whole,  except as provided in subsection
(h) below and except  purchases of inventory in the ordinary  course of business
consistent with past practice;

                  (h)  make or  agree to make  any new  capital  expenditure  or
expenditures,  except for up to $30,000,000 of capital expenditures  pursuant to
the Company's budget previously provided to Parent;

                  (i) enter into,  amend in any material  respect,  or terminate
any joint ventures or any other agreements,  commitments,  or contracts that are
material to the  Company and its  Subsidiaries,  considered  as a whole  (except
agreements,  commitments, or contracts expressly provided for or contemplated by
this  Agreement  or for the  purchase,  sale,  or lease of goods,  services,  or
properties in the ordinary course of business, consistent with past practice);

                  (j) enter  into or  terminate,  or amend,  extend,  renew,  or
otherwise  modify in any  material  respect  (including,  but not limited to, by
default or by failure to act) any material distribution,  OEM, independent sales
representative,  noncompetition, licensing, franchise, research and development,
supply, or similar contract,  agreement,  or understanding  (except  agreements,
commitments,  or  contracts  expressly  provided  for or  contemplated  by  this
Agreement or for the purchase,  sale, or lease of goods, services, or properties
in the ordinary course of business,  consistent  with past  practice),  or enter
into any contract,  plan,  agreement,  understanding,  arrangement or obligation
which materially restricts the Company's, or after the Merger would restrict the
Surviving  Corporation's  or Parent's,  ability to conduct any material  line of
business;

                  (k) change in any  material  respect  its credit  policy as to
sales of inventories  or collection of receivables or its inventory  consignment
practices;

                                      26.

<PAGE>


                  (l)  remove  or  permit  to  be  removed  from  any  building,
facility, or real property any material machinery,  equipment, fixture, vehicle,
or other personal  property or parts thereof,  except in the ordinary  course of
business or unless the same is replaced with similar items of equal quality;

                  (m) alter or revise  its  accounting  principles,  procedures,
methods, or practices in any material respect,  except as required by applicable
law or by a change in generally  accepted  accounting  principles  and concurred
with by the Company's independent public accountants;

                  (n) institute,  settle, or compromise any claim, action, suit,
or proceeding pending or threatened by or against it involving amounts in excess
of $1,000,000,  at law or in equity or before any Governmental  Body (including,
but not limited to, the FDA) or any nongovernmental self-regulatory agency;

                  (o)   knowingly   take  any  action  that  would   render  any
representation,  warranty,  covenant,  or  agreement  of  the  Company  in  this
Agreement  inaccurate or breached  such that the  conditions in Section 6.2 will
not be satisfied as of the Closing Date;

                  (p) fail to use commercially reasonable efforts to cause World
Medical to refrain from taking any actions  described in  subsections  (d), (e),
(f), (g), (i), (j), (k), (l), (m), (n), or (o) above; or

                  (q) agree,  whether in writing or otherwise,  to do any of the
foregoing.

         5.2  Conduct of  Business  of Parent.  Except as  contemplated  by this
Agreement, from the date of this Agreement until the Effective Time, Parent will
not do, and will not permit any of its  subsidiaries to do, any of the following
without  the prior  written  consent  of the  Company  (such  consent  not to be
unreasonably withheld or delayed):

                  (a) combine or  reclassify  any shares of its  capital  stock,
declare,  set  aside or pay any  extraordinary  dividend  or other  distribution
(whether in cash, stock or property or any combination  thereof, but excluding a
stock split effected in the form of a stock  dividend) in respect of its capital
stock,  or  redeem  or  otherwise  acquire  (other  than  pursuant  to  Parent's
previously  established stock repurchase program or as would not violate Section
5.21) any shares of its capital stock or amend or alter any material term of any
of its outstanding securities;

                  (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 of any corporation, partnership, joint venture, association
or other business  organization  or division  thereof,  or otherwise  acquire or
agree to  acquire,  or  dispose  of or agree to  dispose  of,  any assets of any
person,  which, in each case,  could  reasonably be expected to delay materially
the consummation of, or increase materially the risk of non-consummation of, the
transactions contemplated by this Agreement;

                  (c) alter or revise  its  accounting  principles,  procedures,
methods or practices in any material  respect,  except as required by applicable
law or regulation or by a change in

                                      27.

<PAGE>


generally  accepted  accounting   principles  and  concurred  with  by  Parent's
independent public accountants;

                  (d)  knowingly  take any action that would result in a failure
to maintain the trading of Parent Common Stock on the NYSE;

                  (e) knowingly  take any action,  or knowingly fail to take any
action, that would render any representation, warranty, covenant or agreement of
Parent in this  Agreement  inaccurate  or breached  such that the  conditions in
Section 6.3 will not be satisfied; or

                  (f)  fail to use  commercially  reasonable  efforts  to  cause
AVECOR  Cardiovascular Inc. and Sofamor Danek Group, Inc. to refrain from taking
any actions described in subsection (e) above; or

                  (g) agree,  whether in writing or otherwise,  to do any of the
foregoing.

              5.3 No Solicitation.  The Company and its Subsidiaries  shall not,
and   shall   cause   their   respective   officers,    directors,    employees,
representatives,  agents,  or  affiliates  (including,  but not  limited  to any
investment  banker,  attorney,  or  accountant  retained  by the  Company or any
Subsidiary),  not to,  directly or  indirectly,  solicit,  knowingly  encourage,
initiate,  or participate in any way in  discussions  or  negotiations  with, or
knowingly  provide any nonpublic  information to, any corporation,  partnership,
person, or other entity or group (other than Parent or any affiliate or agent of
Parent) concerning any proposed Alternative Transaction,  or otherwise knowingly
facilitate   any  effort  or  attempt  to  make  or  implement  an   Alternative
Transaction.  For purposes of this Agreement,  "Alternative  Transaction"  shall
mean any of the  following  involving  the  Company or any  Subsidiary:  (i) any
tender offer, exchange offer, merger,  consolidation,  share exchange,  business
combination or similar  transaction;  (ii) any  transaction or series of related
transactions pursuant to which any person or entity (or its shareholders), other
than Parent,  or Merger  Subsidiary or any of their affiliates (a "Third Party")
acquires  shares (or  securities  exercisable  for or  convertible  into shares)
representing  more than 20% of the  outstanding  shares of any class of  capital
stock of the  Company or any  Subsidiary;  or (iii) any sale,  lease,  exchange,
licensing,  transfer  or  other  disposition  pursuant  to  which a Third  Party
acquires control of more than 20% of the assets (including,  but not limited to,
intellectual  property  assets) of the Company and its  Subsidiaries  taken as a
whole  (determined  by reference to the fair market value of such assets),  in a
single transaction or series of related  transactions;  provided,  however, that
the proposed  transaction with World Medical shall not constitute an Alternative
Transaction.  The Company will immediately  terminate all discussions with Third
Parties concerning any proposed Alternative  Transaction,  and will request that
such Third Parties promptly return any confidential information furnished by the
Company in connection  with any proposed  Alternative  Transaction.  The Company
will not waive any  provision  of any  confidentiality,  standstill  or  similar
agreement  entered into with any third party regarding any proposed  Alternative
Transaction,  and prior to the  Closing  shall  enforce all such  agreements  in
accordance with their terms. The Company will promptly communicate to Parent the
name of the person or entity  submitting,  and the terms and  conditions of, any
proposal  or inquiry  that it  receives  after the date hereof in respect of any
proposed  Alternative  Transaction or a reasonably  detailed  description of any
such  information

                                      28.

<PAGE>


requested  from  it  after  the  date  hereof  or of any  such  negotiations  or
discussions being sought to be initiated or continued with the Company after the
date hereof in respect of a proposed Alternative Transaction; provided, however,
that this  Agreement  shall not  prohibit  the Board of Directors of the Company
from (i) prior to the Required Company  Stockholder Vote,  furnishing  nonpublic
information to or entering into discussions or negotiations  with, any person or
entity that makes an unsolicited  Superior Proposal (as defined below),  if, and
only to the extent that, (a) such action is so required under  applicable law in
order for the Board of Directors to comply with its applicable  fiduciary duties
to its  stockholders  imposed by law,  (b) prior to first  furnishing  nonpublic
information to, or first entering into substantive  discussions and negotiations
with, such person or entity after the date hereof,  the Company (I) (x) releases
Parent from the two-year standstill provisions of the Confidentiality  Agreement
with  respect to any  proposal  submitted  by Parent to the  Company's  Board of
Directors  for a  transaction  that,  by the  proposal's  terms,  would  only be
consummated  with  the  cooperation  and  approval  of the  Company's  Board  of
Directors  (which proposal shall be submitted by Parent on a confidential  basis
unless the  Company or such person or entity  proposing  the  Superior  Proposal
publicly  discloses the Superior  Proposal),  and (y) provides written notice to
Parent to the effect  that it intends to furnish  information  to, or enter into
discussions  or  negotiations  with,  such  person or  entity,  and  naming  and
identifying the person or entity making the Superior Proposal, and (II) receives
from such person or entity an executed  confidentiality and standstill agreement
with terms no less favorable to the Company than the  Confidentiality  Agreement
entered into with Parent, as modified by clause (I)(x) of this sentence, and (c)
the Company  provides  Parent with all non-public  information to be provided to
such person or entity which Parent has not previously received from the Company,
and the Company keeps Parent  informed,  on a daily or more regular basis if the
context requires or Parent so requests,  of the status, terms and conditions and
all  other  material  information  with  respect  to  any  such  discussions  or
negotiations;  and (ii) to the extent  applicable,  complying with Rule 14e-2 or
14d-9  promulgated  under  the 1934 Act with  regard to a  proposed  Alternative
Transaction.  Nothing in this section  shall (x) permit the Company to terminate
this Agreement  (except as  specifically  provided in Article 7 hereof),  or (y)
permit the  Company to enter into any  agreement  providing  for an  Alternative
Transaction  (other  than  the  confidentiality  and  standstill   agreement  as
provided,  and in the circumstances  and under the conditions set forth,  above)
for as long as this Agreement remains in effect. For purposes of this Agreement,
a "Superior Proposal" shall mean a proposal for an Alternative  Transaction that
the  Board  of  Directors  of the  Company  has  reasonably  and in  good  faith
determined  (with the advice of its  financial  advisors and taking into account
all  legal,   financial  and  regulatory   aspects  of  the  likelihood  of  the
consummation of such Alternative Transaction, including, but not limited to, the
conditions  to  consummation  and  the   consequences   under  such  Alternative
Transaction  proposal of any material adverse effects or changes in the Company)
to be  more  favorable  to the  Company's  stockholders  than  the  transactions
contemplated by this Agreement.

         5.4  Access and Information.

                  (a)  Except  as  required  pursuant  to  any   confidentiality
agreement or similar agreement or arrangement to which the Company or any of its
Subsidiaries  is a party  (in which  case the  Company  shall  use  commercially
reasonable  efforts  to  provide  acceptable  alternative

                                      29.

<PAGE>


arrangements,  not in violation of such agreement or arrangement, for disclosure
to Parent or its  advisors) or pursuant to  applicable  law,  the Company  shall
afford to Parent, and to Parent's accountants,  officers, directors,  employees,
counsel,  and other  representatives,  reasonable  access during normal business
hours upon reasonable  prior notice,  from the date hereof through the Effective
Time, to all of its properties, books, contracts, commitments, and records, and,
during such period, the Company shall furnish promptly to Parent all information
concerning   the  Company's  and  its   Subsidiaries'   businesses,   prospects,
properties,  liabilities,  results of operations,  financial condition, testing,
clinical trials, officers, employees,  investigators,  distributors,  customers,
suppliers,  and others having  material  dealings with the Company as Parent may
reasonably request and reasonable  opportunity to contact and obtain information
from  such  officers,   employees,   investigators,   distributors,   customers,
suppliers,  and others having dealings with the Company as Parent may reasonably
request.  During the period  from the date  hereof to the  Effective  Time,  the
parties  shall in good faith meet and  correspond  on a regular basis for mutual
consultation  concerning  the  conduct of the  Company's  and the  Subsidiaries'
businesses and, in connection therewith, Parent shall be entitled, during normal
business  hours  upon  reasonable  prior  notice  and in a manner  that does not
unreasonably  interfere with the Company's business,  to have employees or other
representatives  present at the offices of the Company and its  Subsidiaries  to
observe,  and be kept informed  concerning,  the Company's and the Subsidiaries'
operations and business planning.

                  (b)  Parent  shall  hold  in  confidence  all  such  nonpublic
information as required by and in accordance with the confidentiality  agreement
dated November 13, 1998,  between  Parent and the Company (the  "Confidentiality
Agreement").

         5.5  Approval of Stockholders; Proxy Statement; Registration Statement.

                  (a) The Company shall  promptly  take all action  necessary in
accordance  with the DGCL and the Company's  Certificate  of  Incorporation  and
Bylaws to cause a special  meeting of the Company's  stockholders  (the "Company
Stockholders  Meeting")  to be duly  called  and  held  as  soon  as  reasonably
practicable following the date upon which the Registration Statement (as defined
below)  becomes  effective  for the  purpose  of voting  upon the Merger and the
adoption  and  approval  of this  Agreement  and at such  Meeting to submit this
Agreement and the Merger to a vote of the stockholders.  The stockholder vote or
consent required for adoption and approval of this Agreement and the approval of
the Merger shall be no greater than that set forth in the DGCL and the Company's
Certificate of Incorporation as previously provided to Parent. Accordingly,  the
Company  represents  and warrants  that the  affirmative  vote of the holders of
record of a majority of the shares of Company  Common Stock  outstanding  on the
record date for the Company  Stockholders  Meeting is all that is  necessary  to
obtain  stockholder  adoption and approval of this Agreement and approval of the
Merger.  The Company  shall use best efforts to obtain the adoption and approval
by the  Company's  stockholders  of  this  Agreement  and  the  approval  by the
Company's stockholders of the Merger, unless otherwise required under applicable
law in order for the Board of Directors to comply with its applicable  fiduciary
duties to its stockholders imposed by law. In accordance therewith,  the Company
shall,  with the cooperation of Parent,  prepare and file, as soon as reasonably
practicable, a proxy  statement/prospectus  included as part of the Registration
Statement  (such proxy

                                      30.

<PAGE>


statement/prospectus,  together with notice of meeting,  form of proxy,  and any
letter or other  materials to the Company's  stockholders  included  therein are
referred to in this Agreement as the "Proxy Statement/Prospectus"). Parent shall
furnish to the Company all information  concerning  Parent and its subsidiaries,
officers,  directors  and  shareholders,  and shall take such  other  action and
otherwise  cooperate,  as the Company may reasonably  request in connection with
any such  action.  The Company  shall use best  efforts to cause the  definitive
Proxy  Statement/Prospectus  to be mailed to the stockholders of the Company, as
soon as  reasonably  practicable  after the  Registration  Statement  shall have
become effective, with the date of mailing as mutually determined by the Company
and Parent. The Proxy  Statement/Prospectus  shall include the recommendation of
the  Company's  Board of  Directors  in favor of the  Merger,  unless  otherwise
required under applicable law in order for the Board of Directors to comply with
its applicable  fiduciary duties to its stockholders  imposed by law. Unless and
until this Agreement is validly terminated pursuant to Article 7, nothing herein
shall limit or  eliminate  in any way the  Company's  obligation  to call,  give
notice of, convene and hold the Company Stockholders Meeting and at such meeting
submit this  Agreement  and the Merger to a vote of the  Company's  stockholders
(and  not  postpone  or  adjourn  such  meeting  or the  vote  by the  Company's
stockholders upon this Agreement and the Merger to another date without Parent's
approval,  not to be  unreasonably  withheld  if and  only  to the  extent  such
postponement or adjournment is required by law or by SEC or Nasdaq regulation).

                  (b) Parent shall, with the cooperation of the Company, prepare
and file, as soon as reasonably practicable,  a registration statement under the
1933 Act  registering  the  shares  of Parent  Common  Stock to be issued in the
Merger  (the  "Registration  Statement"),  which  Registration  Statement  shall
include the Proxy Statement/Prospectus.  Parent will use commercially reasonable
efforts to have the  Registration  Statement  declared  effective  by the SEC as
promptly  thereafter as practicable.  Parent shall also take any action required
to be taken  under  state blue sky or  securities  laws in  connection  with the
issuance  of Parent  Common  Stock  pursuant to the  Merger.  The Company  shall
furnish to Parent all  information  concerning the Company and its  Subsidiaries
and the  holders of its  capital  stock,  and shall  take such other  action and
otherwise  cooperate,  as Parent may reasonably  request in connection  with any
such action.

                  (c)  Parent  shall  notify  the  Company  promptly  (i) of the
receipt  of the  comments  of the  SEC,  (ii)  of any  request  by the  SEC  for
amendments or supplements to the Registration Statement,  (iii) of the time when
the  Registration  Statement has become effective or any supplement or amendment
has been filed,  or the issuance of any stop order and (iv) of the suspension of
the  qualification  of the Parent Common Stock  issuable in connection  with the
Merger for  offering or sale in any  jurisdiction  and shall  supply the Company
with copies of all correspondence  with the SEC with respect to the Registration
Statement.

                  (d) If at any time prior to the Effective  Time,  any event or
circumstance relating to the Company, any Subsidiary,  or the Company's officers
or directors  should occur and be  discovered by the Company that is required to
be  described  in  an  amendment  or   supplement   to  the   definitive   Proxy
Statement/Prospectus or the Registration  Statement,  the Company shall promptly
inform  Parent.  If at any  time  prior  to the  Effective  Time,  any  event or
circumstance  relating to Parent or any of its  subsidiaries or their respective
officers or directors  should occur

                                      31.

<PAGE>


and be  discovered by Parent that is required to be described in an amendment or
supplement to the  definitive  Proxy  Statement/Prospectus  or the  Registration
Statement,  Parent shall promptly inform the Company.  Whenever any event occurs
that should be described in an amendment  of, or supplement  to, the  definitive
Proxy Statement/Prospectus or the Registration Statement, the Company or Parent,
as the case may be,  shall,  upon  learning of such event,  promptly  notify the
other  and  consult  and  cooperate  with  the  other  in  connection  with  the
preparation of a mutually acceptable amendment or supplement.  The parties shall
promptly file such amendment or supplement  with the SEC and mail such amendment
or  supplement  as soon as  practicable  after  it is  cleared  by the  SEC.  No
amendment or supplement to the Proxy  Statement/Prospectus  or the  Registration
Statement  will be made by Parent or the  Company  without  the  approval of the
other party (such approval not to be unreasonably withheld or delayed).

         5.6  Consents.   The  Company  will,  at  its  cost  and  expense,  use
commercially reasonable efforts to obtain all material approvals and consents of
all third parties  necessary on the part of the Company or its  Subsidiaries  to
consummate the transactions contemplated hereby. Parent agrees to cooperate with
the Company in connection  with obtaining  such  approvals and consents.  Parent
will, at its cost and expense, use commercially reasonable efforts to obtain all
material  approvals and consents of all third  parties  necessary on the part of
Parent to  consummate  the  transactions  contemplated  hereby.  The Company and
Parent agree to cooperate  with each other in  connection  with  obtaining  such
approvals and consents.

         5.7  Affiliates' Letters.

                  (a) The  Company has  delivered  to Parent a list of names and
addresses  of  those  persons,  in  the  Company's   reasonable  judgment  after
consultation  with  outside  legal  counsel,  who,  as of the date  hereof,  are
affiliates  within  the  meaning  of  Rule  145 of  the  rules  and  regulations
promulgated under the 1933 Act or otherwise  applicable SEC accounting  releases
with respect to pooling-of-interests  accounting treatment (each such person, an
"Affiliate") of the Company.  The Company shall provide Parent such  information
and documents as Parent shall reasonably  request for purposes of reviewing such
list and shall  promptly  update such list to reflect any changes  thereto.  The
Company has delivered or caused to be  delivered,  or will,  promptly  after the
execution  hereof,  deliver or cause to be delivered,  to Parent an  affiliate's
letter  in the form  attached  hereto  as  EXHIBIT  B,  executed  by each of the
Affiliates of the Company  identified in the foregoing list, who were available,
and shall use  reasonable  best  efforts to deliver or cause to be  delivered to
Parent as soon as practicable  after the date hereof such an affiliate's  letter
executed by any  Affiliate who was not available to sign and deliver such letter
on or  prior  to the date  hereof  and by any  additional  persons  who,  to the
knowledge of the Company,  become Affiliates after the date hereof. Parent shall
be entitled to place  legends as  specified in such  affiliates'  letters on the
certificates  evidencing  any  of the  Parent  Common  Stock  received  by  such
Affiliates  pursuant to the terms of this  Agreement,  and to issue  appropriate
stop transfer  instructions  to the transfer  agent for the Parent Common Stock,
consistent with the terms of such letters.

                                      32.

<PAGE>


                  (b) For so long as  resales of shares of Parent  Common  Stock
issued pursuant to the Merger are subject to the resale  restrictions  set forth
in Rule 145 under the 1933 Act, Parent will use commercially  reasonable efforts
to comply with Rule 144(c)(1) under the 1933 Act.

         5.8 Expenses.  Whether or not the Merger is consummated,  all costs and
expenses   incurred  in  connection  with  this  Agreement,   the   transactions
contemplated  hereby,  the  Proxy  Statement/Prospectus,  and  the  Registration
Statement will be paid by the party  incurring  such costs and expenses,  except
that the Company and Parent will share  equally the cost of printing  and filing
with the SEC the Proxy  Statement/Prospectus  and the Registration Statement and
the filing fees required under the HSR Act or any Foreign Merger Laws.

         5.9  Further  Actions.  Subject  to the  terms  and  conditions  herein
provided and without  being  required to waive any  conditions  herein  (whether
absolute, discretionary, or otherwise), each of the parties hereto agrees to use
commercially  reasonable  efforts to take, or cause to be taken, all action, and
to do, or cause to be done,  all  things  necessary,  proper,  or  advisable  to
consummate and make effective the  transactions  contemplated by this Agreement.
In case at any time after the Effective  Time any further action is necessary or
desirable to carry out the purposes of this  Agreement,  the proper officers and
directors of each party to this Agreement shall take all such necessary action.

         5.10 Regulatory Approvals.

                  (a) The  Company  and Parent  each  agree to use  commercially
reasonable  efforts to take, or cause to be taken, all appropriate  action,  and
do, or cause to be done,  all things as may be necessary  under federal or state
securities laws or the HSR Act or Foreign Merger Laws applicable to or necessary
for, and will file as soon as reasonably  practicable  and, if appropriate,  use
commercially  reasonable  efforts to have  declared  effective  or approved  all
documents and  notifications  with the SEC and other  governmental or regulatory
bodies (including, without limitation, the FDA and equivalent foreign regulatory
bodies, and other foreign regulatory bodies that administer Foreign Merger Laws,
and any  foreign  labor  councils or bodies as may be  required)  that they deem
necessary or appropriate for, the consummation of the Merger or any of the other
transactions   contemplated   hereby,  and  each  party  shall  give  the  other
information  reasonably  requested by such other party  pertaining to it and its
subsidiaries and affiliates to enable such other party to take such actions.

                  (b) Although the parties do not  anticipate  any  legislative,
administrative or judicial objection to the consummation of the Merger or any of
the transactions contemplated by this Agreement, each of the Company, Parent and
Merger Subsidiary agrees to use commercially  reasonable  efforts  vigorously to
contest and resist any action, including legislative, administrative or judicial
action,  and to  have  vacated,  lifted,  reversed  or  overturned  any  decree,
judgment,   injunction  or  other  order  (whether  temporary,   preliminary  or
permanent)  (an  "Order")  that is in effect  and that  restricts,  prevents  or
prohibits  the  consummation  of the  Merger  or any of the  other  transactions
contemplated by this Agreement,  including,  without  limitation,  by vigorously
pursuing  available avenues of administrative  and judicial appeal.  Each of the
Company, Parent and Merger Subsidiary also agrees to use commercially reasonable
efforts to

                                      33.

<PAGE>


take  any and all  actions  necessary  to  avoid or  eliminate  each  and  every
impediment  under any  antitrust  law that may be asserted  by any  governmental
antitrust  authority  or any other party so as to enable the parties to close by
the date  specified  in Section  7.1(b) the  transactions  contemplated  hereby,
including without limitation, committing to and/or effecting, by consent decree,
hold separate  orders,  or otherwise,  the sale or disposition of such assets or
businesses  as are required to be divested in order to avoid the entry of, or to
effect the dissolution of, any injunction,  temporary restraining order or other
order in any suit or  proceeding,  which  would  otherwise  have the  effect  of
preventing  the  consummation  by the date specified in Section 7.1(b) of all or
any material part of the transactions  contemplated hereby.  Notwithstanding the
foregoing or anything herein to the contrary, in no event shall any party hereto
be required  under this Section 5.10 to make  arrangements  for or to effect the
sale, cessation, or other disposition of product lines or businesses or take any
action materially adverse to such party.

         5.11 Certain Notifications. The Company shall promptly notify Parent in
writing of the occurrence of any event that will or could reasonably be expected
to result in the failure by the Company or its  affiliates to satisfy any of the
conditions  specified in Section 6.1 or 6.2.  Parent shall  promptly  notify the
Company in writing of the occurrence of any event that will or could  reasonably
be expected to result in the failure by Parent or its  affiliates to satisfy any
of the conditions specified in Section 6.1, 6.2(e) or 6.3.

         5.12  Voting of Shares.  To induce  Parent to execute  this  Agreement,
certain executive  officers and directors of the Company included in the list of
"Affiliates"  referenced  in Section 5.7 have  executed and  delivered as of the
date hereof  Agreements  to  Facilitate  Merger in the form  attached  hereto as
EXHIBIT C (the  "Agreement to Facilitate  Merger"),  pursuant to which each such
person has agreed to vote his or her shares of Company  Common Stock in favor of
the Merger at the Company Stockholders  Meeting. The Company will use reasonable
best  efforts to have all other such  Affiliates  execute  and deliver to Parent
Agreements to Facilitate Merger as soon as practicable after the date hereof.

         5.13  Stock  Option  Agreement.   To  induce  Parent  to  execute  this
Agreement,  the  Company has  executed  and  delivered  to Parent as of the date
hereof a Stock Option  Agreement in the form  attached  hereto as EXHIBIT D (the
"Stock Option  Agreement"),  pursuant to which the Company has granted to Parent
an option to acquire from the Company  12,807,795 shares of Company Common Stock
at an  exercise  price  equal to $54.00  per share.  Such  option  shall  become
exercisable only in the events described in the Stock Option Agreement.

         5.14 NYSE Listing Application. Parent shall promptly prepare and submit
to the NYSE a listing  application  for the Parent  Common Stock to be issued in
the Merger  pursuant to Article 1 of this  Agreement and pursuant to the Company
Options  assumed by Parent,  and shall use  commercially  reasonable  efforts to
obtain,  prior to the  Effective  Time,  approval for the listing of such Parent
Common Stock,  subject to official  notice to the NYSE of issuance.  The Company
shall cooperate with Parent in such listing application.

                                      34.

<PAGE>


         5.15 Indemnification.

                  (a) The  certificate  of  incorporation  and the bylaws of the
Surviving   Corporation   shall   contain  the   provisions   with   respect  to
indemnification, payment of fees and expenses and exculpation from liability set
forth in the Company's  certificate of  incorporation  and bylaws on the date of
this Agreement,  which  provisions  shall not be amended,  repealed or otherwise
modified  for a period of six years from the  Effective  Time in any manner that
would  adversely  affect the rights  thereunder of individuals  who on or at any
time prior to the Effective Time were directors,  officers,  employees or agents
of the Company (the "Indemnified Parties"), unless such modification is required
by law.  From and after the  Effective  Time,  Parent  will cause the  Surviving
Corporation to fulfill and honor in all respects the  obligations of the Company
pursuant to each indemnification  agreement in effect between the Company and an
Indemnified  Party.  Parent shall  guarantee  the  obligations  of the Surviving
Corporation with respect to the indemnification and payment of fees and expenses
provisions contained in the Surviving Corporation's certificate of incorporation
and  bylaws  and in the  indemnification  agreements  described  in the  Company
Disclosure Schedule in effect between the Company and an Indemnified Party as of
the  Effective  Time with respect to acts  occurring at or before the  Effective
Time (including the transactions contemplated by this Agreement).

                  (b) For a period of six years after the Effective Time, Parent
shall cause to be  maintained  in effect the Company's  current  directors'  and
officers'  liability  insurance policy with respect to claims arising from facts
or events that occurred at or prior to the Effective  Time;  provided,  however,
that (i) Parent may substitute therefor policies providing coverage on terms and
conditions that are no less  advantageous to the Indemnified  Parties,  and (ii)
Parent may satisfy its  obligations  hereunder  by  extending  the  discovery or
reporting  period  under such  policy for six years from the  Effective  Time to
maintain  in  effect  directors'  and  officers'  liability  insurance  covering
pre-acquisition  acts  (including acts in connection with this Agreement and the
transactions  contemplated  hereby) for the Indemnified Parties on terms no less
favorable than the terms of such current insurance coverage;  provided, however,
that in no event shall  Parent be  required  to expend for any such  coverage an
amount per year in excess of $798,000; and provided further that if the cost per
year of such coverage exceeds $798,000, Parent shall be obligated to obtain such
coverage as is available  for a cost per year not  exceeding  such  amount.  The
Company  represents  that the annual  premium  currently paid by the Company for
such insurance is approximately $399,000.

                  (c) In the event Parent,  the Surviving  Corporation or any of
their  successors  or assigns  (i)  consolidates  with or merges  into any other
person or entity and shall not be the  continuing  or surviving  corporation  or
entity of such  consolidation  or merger or (ii) transfers all or  substantially
all of its  properties  and  assets to any  person,  then and in each such case,
proper  provisions shall be made so that the successors and assigns of Parent or
the Surviving Corporation,  as the case may be, shall assume the obligations set
forth in this Section 5.15.

                  (d) This Section 5.15 shall  survive the  consummation  of the
Merger at the Effective  Time, is intended to benefit the  Indemnified  Parties,
may be enforced by the

                                      35.

<PAGE>


Indemnified  Parties as third  party  beneficiaries  and shall be binding on all
successors and assigns of Parent and the Surviving Corporation.

         5.16 Letters of the Company's and Parent's Accountants.

                  (a) The Company shall cooperate with Parent and use reasonable
best efforts to cause to be  delivered  to Parent and the Company,  letters from
Ernst & Young LLP addressed to the Company, as of the Closing Date, stating that
based upon discussions  with officials of the Company  responsible for financial
and accounting  matters,  and information  furnished to Ernst & Young LLP to the
date of its letter,  Ernst & Young LLP concurs with the  Company's  management's
conclusion  that, as of the date of its letter,  no conditions  exist related to
the Company  that would  preclude  Parent's  accounting  for the merger with the
Company as a pooling of interests.

                  (b) The Company shall  cooperate  with Parent and Parent shall
use reasonable  best efforts to cause to be delivered to the Company and Parent,
letters from  PricewaterhouseCoopers  LLP  addressed to Parent,  dated as of the
Closing Date,  confirming as of the Closing Date that the Merger will qualify as
a pooling of interests transaction under Opinion 16 of the Accounting Principles
Board and applicable SEC rules and regulations.

         5.17 Subsidiary  Shares. At or prior to the Closing,  the Company shall
use  commercially  reasonable  efforts  to  cause  all  issued  and  outstanding
Subsidiary  shares  (other  than any  interests  in joint  ventures  or  similar
arrangements)  owned  by  any  person  other  than  the  Company  or  any of its
Subsidiaries to be transferred for no or nominal consideration to such qualified
person or persons designated by Parent.

         5.18 Benefit Plans and Employee Matters.

                  (a) From and after the  Effective  Time,  Parent  shall to the
extent practicable cause the Surviving  Corporation to provide employee benefits
and programs to the  Company's  and its  Subsidiaries'  employees  that,  in the
aggregate,  are  substantially  comparable  to or more  favorable  than those in
existence as of the date hereof and  disclosed in writing to Parent prior to the
date hereof; provided that stock-based compensation shall be comparable,  in the
aggregate,  to that  offered by Parent and its  subsidiaries  generally.  To the
extent  Parent  satisfies  its  obligations  under this  Section by  maintaining
Company benefit plans,  Parent shall not be required to include employees of the
Company in Parent's  benefit plans.  From and after the Effective  Time,  Parent
shall honor,  in  accordance  with their terms,  all  employment  and  severance
agreements and all severance, incentive and bonus plans as in effect immediately
prior to the Closing Date that are applicable to any current or former employees
or directors of the Company or any of its Subsidiaries and that are disclosed in
the Company Disclosure Schedule.

                  (b) To the extent  that  service is relevant  for  purposes of
eligibility, level of participation, or vesting under any employee benefit plan,
program or arrangement  established or maintained by Parent,  the Company or any
of their respective subsidiaries,  employees of the Company and its Subsidiaries
shall be credited for service  accrued or deemed  accrued prior to the Effective
Time  with  the  Company  or such  Subsidiary,  as the  case  may be.  Under  no

                                      36.

<PAGE>


circumstances  shall  employees  receive  credit for  service  accrued or deemed
accrued prior to the Effective Time with the Company or such Subsidiary,  as the
case may be, for benefit  accruals under any employee  pension  benefit plan (as
defined by Section 3(2) of ERISA) or any retiree health plan.

                  (c) As soon as  reasonably  practicable  after  the  Effective
Time, Parent shall take whatever action is reasonably necessary to provide for a
special phase under Parent's employee stock purchase plan (the "Parent ESPP") to
permit those  employees of the  Surviving  Corporation  who have  satisfied  the
eligibility  requirements  of the Parent ESPP to purchase  Parent  Common  Stock
under the  Parent  ESPP,  with  such  phase to be  operated  under the terms and
conditions of the Parent ESPP.

         5.19  Obligations  of Merger  Subsidiary.  Parent shall take all action
necessary  to cause  Merger  Subsidiary  to perform its  obligations  under this
Agreement  and  to  consummate  the  Merger  on the  terms  and  subject  to the
conditions set forth in this Agreement.

         5.20 Plan of Reorganization. This Agreement is intended to constitute a
"plan of reorganization"  within the meaning of Section 1.368-2(g) of the income
tax  regulations  promulgated  under the  Code.  From and after the date of this
Agreement and after the Effective  Time,  each party hereto shall use reasonable
best  efforts to cause the Merger to qualify,  and shall not,  without the prior
written consent of the other parties hereto, knowingly take any actions or cause
any  actions to be taken which could  prevent  the Merger from  qualifying  as a
reorganization under the provisions of Section 368(a) of the Code.

         5.21 Pooling.  From and after the date of this  Agreement and until the
Effective  Time,  neither  Parent nor the Company,  nor any of their  respective
subsidiaries or other affiliates,  shall knowingly take any action, or knowingly
fail to take any action,  that is reasonably  likely to jeopardize the treatment
of the Merger as a "pooling of interests" for accounting  purposes.  Between the
date of this Agreement and the Effective Time, Parent and the Company each shall
use  reasonable  best efforts to cause the  characterization  of the Merger as a
pooling of interests for  accounting  purposes if such a  characterization  were
jeopardized by action taken by Parent or the Company, respectively, prior to the
Effective Time.  Following the Effective  Time,  Parent shall not knowingly take
any  action,   or  fail  to  take  any  action,   that  would   jeopardize   the
characterization  of the  Merger as a  "pooling  of  interests"  for  accounting
purposes.

         5.22  Tax  Matters.  At or  prior  to the  filing  of the  Registration
Statement  and at or prior to the Closing,  the Company and Parent shall execute
and  deliver  to  Cooley  Godward  LLP  and to  Fredrikson  &  Byron,  P.A.  tax
representation  letters  reasonably  satisfactory  to such counsel setting forth
customary  representations which may be relied upon by such counsel in rendering
any opinions  contemplated  by this  Agreement.  Parent  shall use  commercially
reasonable  efforts to cause  Fredrikson  & Byron,  P.A.  to deliver to Parent a
legal  opinion,  satisfying  the  requirements  of Item  601 of  Regulation  S-K
promulgated  under  the 1933 Act and dated as of a date that is no more than two
business days prior to the date of filing of the Registration  Statement, to the
effect that the Merger will  constitute a  reorganization  within the meaning of
Section  368(a) of the  Code,  based in part on the tax  representation  letters
described in this

                                      37.

<PAGE>


Section 5.22.  The Company shall use  commercially  reasonable  efforts to cause
Cooley  Godward LLP to deliver to the Company a legal  opinion,  satisfying  the
requirements  of Item 601 of Regulation S-K  promulgated  under the 1933 Act and
dated as of a date that is no more than two  business  days prior to the date of
filing  of the  Registration  Statement,  to the  effect  that the  Merger  will
constitute a  reorganization  within the meaning of Section  368(a) of the Code,
based in part on the tax representation letters described in this Section 5.22.


                                    ARTICLE 6

                               CLOSING CONDITIONS

         6.1  Conditions to Obligations of Parent,  Merger  Subsidiary,  and the
Company. The respective obligations of each party to consummate the Merger shall
be  subject  to the  fulfillment  at or prior to the  Closing  of the  following
conditions,  any or all of which  may be  waived,  in  whole or in part,  to the
extent permitted by applicable law:

                  (a) No Injunction.  None of Parent, Merger Subsidiary,  or the
Company shall be subject to any final order, decree, or injunction of a court of
competent  jurisdiction  within the United States that is then in effect and (i)
has the  effect of making  the  Merger  illegal  or  otherwise  prohibiting  the
consummation of the Merger, or (ii) would impose any material  limitation on the
ability of Parent to effectively  exercise full rights of ownership of the stock
of the Surviving  Corporation or of the Surviving Corporation to own and operate
the assets and business of the Company.

                  (b) Stockholder Approval.  The approval of the stockholders of
the  Company  referred  to in Section 5.5 hereof  shall have been  obtained,  in
accordance  with the DGCL and the Company's  Certificate  of  Incorporation  and
Bylaws.

                  (c) Registration  Statement.  The  Registration  Statement (as
amended or  supplemented)  shall have  become  effective  under the 1933 Act and
shall not be subject to any "stop order," and no action,  suit,  proceeding,  or
investigation  by the SEC to suspend the  effectiveness  thereof shall have been
initiated and be continuing.

                  (d) NYSE  Listing.  The  shares of Parent  Common  Stock to be
delivered  pursuant to the Merger shall have been duly authorized for listing on
the NYSE, subject to official notice of issuance.

                  (e) Waiting  Periods.  The waiting  periods (and any extension
thereof)  applicable to the consummation of the Merger under the HSR Act and any
Foreign Merger Laws shall have expired or been terminated.

         6.2  Conditions to  Obligations  of Parent and Merger  Subsidiary.  The
respective  obligations of Parent and Merger Subsidiary to consummate the Merger
shall be subject to the  fulfillment at or prior to the Closing of the following
additional conditions,  any or all of which may be waived by Parent, in whole or
in part, to the extent permitted by applicable Law:

                                      38.

<PAGE>


                  (a)  Representations  and Warranties True. Each representation
and warranty of the Company  contained in this Agreement,  without regard to any
qualification  or reference to "Company  Material Adverse Effect," shall be true
and correct on the Closing Date as though such  representations  and  warranties
were made on such date,  except that those  representations  and warranties that
address  matters  only as of the date  hereof or another  particular  date shall
remain  true  and  correct  as of such  date,  and  except  in any  case for any
inaccuracies  that have not had, or would not  reasonably be expected to have, a
Company  Material  Adverse  Effect;  provided,   however,   notwithstanding  the
foregoing, this Section 6.2(a) shall not be considered fulfilled or satisfied if
the representation and warranty set forth in the last sentence of Section 3.3 is
incorrect as of the Closing Date by understating the number of shares of Company
Common  Stock  by  more  than  20,000  shares.  Parent  shall  have  received  a
certificate to the foregoing effect signed by the Chief Executive Officer of the
Company or other authorized Officer of the Company.

                  (b) Performance. The Company shall have performed and complied
in all material respects with all material  covenants required by this Agreement
to be  performed or complied  with by it at or prior to the Closing,  and Parent
shall have received a certificate  to such effect signed by the Chief  Executive
Officer of the Company or other authorized Officer of the Company (provided that
for purposes of this subsection (b), actions of representatives or agents of the
Company who are not officers, directors or employees of the Company which do not
result in a proposal for an Alternative  Transaction shall not be deemed to be a
breach of Section 5.3 so long as the Company  has used  commercially  reasonable
efforts to cause such representatives and agents to comply with Section 5.3).

                  (c) Affiliates'  Letters.  Parent shall have received a letter
from each of the Affiliates pursuant to Section 5.7 hereof.

                  (d) Pooling  Opinion.  Parent shall have  received each of the
letters described in Section 5.16.

                  (e) Continued  Employment of Key  Executives.  There shall not
have been since the date hereof any  termination  of employment  (excluding  any
termination due to death or disability) involving the Chief Executive Officer or
a majority of the other executive officers of the Company as of the date hereof,
or any notice or announcement that such Chief Executive Officer or a majority of
such other  executive  officers  of the  Company as of the date  hereof will not
continue their employment with the Surviving Corporation after the Merger.

         6.3  Conditions  to Obligation  of the Company.  The  obligation of the
Company to consummate the Merger shall be subject to the fulfillment at or prior
to the Closing of the following additional  conditions,  any or all of which may
be  waived by the  Company,  in whole or in part,  to the  extent  permitted  by
applicable law:

                  (a)  Representations  and Warranties True. Each representation
and  warranty  of Parent  contained  in this  Agreement,  without  regard to any
qualification  or reference to "Parent  Material  Adverse Effect," shall be true
and correct on the Closing Date as though such  representations  and  warranties
were made on such date, except that those representations and

                                      39.

<PAGE>


warranties that address matters only as of the date hereof or another particular
date shall  remain true and correct as of such date,  and except in any case for
any inaccuracies  that have not had, or would not reasonably be expected to have
a Parent Material Adverse Effect.  The Company shall have received a certificate
to the  foregoing  effect  signed  by  the  Chief  Executive  Officer  or  other
authorized officer of Parent.

                  (b)  Performance.  Parent  and  Merger  Subsidiary  shall have
performed  and complied in all  material  respects  with all material  covenants
required by this  Agreement to be performed or complied with by them at or prior
to the Closing, and the Company shall have received a certificate to such effect
signed by the Chief Executive Officer or other authorized officer of Parent.

                  (c) Tax Opinion. The Company shall have received an opinion of
Cooley  Godward  LLP,  counsel  to  the  Company,  addressed  to  the  Company's
stockholders,  based upon  representations of Parent,  Merger Subsidiary and the
Company  and  normal  assumptions,  and  dated on or about  the date that is two
business days prior to the date the Proxy  Statement/Prospectus  is first mailed
to  Company's  stockholders,  which  opinion  shall not have been  withdrawn  or
modified in any material  respect  prior to the  Effective  Time,  to the effect
that, subject to customary  conditions and  representations,  the Merger will be
treated for federal income tax purposes as a  reorganization  within the meaning
of Section  368(a) of the Code, and that each of Parent,  Merger  Subsidiary and
the Company will be considered a party to such  reorganization.  Parent,  Merger
Subsidiary and the Company hereby agree to provide to such counsel  certificates
acceptable to such counsel setting forth the customary representations which may
be relied upon by such counsel in rendering such opinion.

                  (d) Pooling  Opinion.  The Company shall have received each of
the letters described in Section 5.16.


                                    ARTICLE 7

                           TERMINATION AND ABANDONMENT

         7.1 Termination.  This Agreement may be terminated at any time prior to
the Effective Time,  whether before or after approval by the stockholders of the
Company, only:

                  (a) by mutual written  consent duly authorized by the Board of
Directors of Parent and the Board of Directors of the Company;

                  (b) by either  Parent or the  Company if the Merger  shall not
have been  consummated on or before May 31, 1999;  provided,  however,  that the
terminating   party  shall  not  have  breached  in  any  material  respect  its
obligations  under  this  Agreement  in any  manner  that  shall  have  been the
proximate cause of, or resulted in, the failure to consummate the Merger by such
date  and  provided  further,   however,  that,  if  a  request  for  additional
information  is  received  from the U.S.  Federal  Trade  Commission  ("FTC") or
Department of Justice ("DOJ") pursuant to the HSR Act or additional  information
is requested by a  governmental  authority (a "Foreign  Authority")  pursuant to
Foreign  Merger  Laws,  such date shall be  extended  to the 90th day

                                      40.

<PAGE>


following  acknowledgment by the FTC, DOJ, or Foreign Authority,  as applicable,
that Parent and the Company have complied  with such  request,  but in any event
not later than October 31, 1999;

                  (c) by either  Parent or the  Company if a court of  competent
jurisdiction or an  administrative,  governmental,  or regulatory  authority has
issued a final  nonappealable  order,  decree,  or  ruling,  or taken  any other
action, having the effect of permanently  restraining,  enjoining,  or otherwise
prohibiting the Merger;

                  (d)  by  either  Parent  or the  Company  if,  at the  Company
Stockholders  Meeting, the requisite vote of the stockholders of the Company for
approval and adoption of this  Agreement and the Merger is not obtained,  except
that the right to terminate this Agreement under this Section 7.1(d) will not be
available to any party whose  failure to perform any material  obligation  under
this  Agreement has been the proximate  cause of, or resulted in, the failure to
obtain the requisite vote of the stockholders of the Company;

                  (e) by Parent if  either  (i) the  Company  has  breached  its
obligations  under  Section  5.3 in any  material  respect  (provided  that  for
purposes of this clause (i), actions of representatives or agents of the Company
who are not officers,  directors or employees of the Company which do not result
in a proposal for an Alternative  Transaction shall not be deemed to be a breach
of Section 5.3 so long as the Company has used commercially  reasonable  efforts
to cause such  representatives  and agents to comply with Section 5.3), (ii) the
Board of Directors of the Company has recommended,  approved,  or authorized the
Company's  acceptance  or execution of a definitive  agreement  providing for an
Alternative Transaction, as defined in Section 5.3, (iii) the Board of Directors
of the  Company  has  modified  in a manner  materially  adverse  to  Parent  or
withdrawn  its  recommendation  of this  Agreement,  or (iv) a  tender  offer or
exchange offer for any outstanding  shares of Company Common Stock is commenced,
and the Board of Directors of the  Company,  within 10 business  days after such
tender  offer or  exchange  offer is so  commenced,  either  fails to  recommend
against acceptance of such tender offer or exchange offer by its stockholders or
takes no  position  with  respect  to the  acceptance  of such  tender  offer or
exchange offer by its stockholders;

                  (f) by the Company prior to the Required  Company  Stockholder
Vote if (i) it is not in  breach of its  obligations  under  Section  5.5 in any
material  respect and has complied  with,  and  continues  to comply  with,  all
requirements  and procedures of Section 5.3 in all material  respects,  (ii) the
Board of  Directors of the Company has complied  with,  and  continues to comply
with, all  requirements  and procedures of Section 5.3 in all material  respects
and has authorized,  subject to complying with the terms of this Agreement,  the
Company to enter into a binding written agreement  concerning a transaction that
constitutes a Superior  Proposal and the Company notifies Parent in writing that
it intends to enter into such  agreement,  attaching the most current version of
such agreement to such notice,  (iii) Parent does not make,  within ten business
days after  receipt of the  Company's  written  notice of its intention to enter
into a binding  agreement for a Superior  Proposal,  any offer that the Board of
Directors  of  the  Company  reasonably  and in  good  faith  determines,  after
consultation with its financial and legal advisors,  is at least as favorable to
the  stockholders  of the Company as the  Superior  Proposal and during such ten

                                      41.

<PAGE>


business-day period the Company reasonably considers and discusses in good faith
all proposals  submitted by Parent and,  without  limiting the foregoing,  meets
with, and causes its financial  advisors and legal advisors to meet with, Parent
and its advisors from time to time as requested by Parent to reasonably consider
and discuss in good faith  Parent's  proposals,  and (iv) prior to the Company's
termination  pursuant to this Section 7.1(f), the Company pays to Parent the fee
required by Section 7.2 to be paid to Parent in the manner therein provided. The
Company agrees (x) that it will not enter into a binding  agreement  referred to
in clause  (ii)  above  until at least the 11th  business  day after  Parent has
received the notice to Parent  required by clause (ii) above,  and (y) to notify
Parent promptly if its intention to enter into a binding  agreement  referred to
in its notice to Parent shall change at any time after giving such notice;

                  (g) by Parent if (i) Parent is not in  material  breach of its
obligations  under this  Agreement and (ii) there has been a material  breach by
the Company of any of its representations, warranties, or obligations under this
Agreement  such  that the  conditions  in  Section  6.2  will  not be  satisfied
("Terminating  Company Breach");  provided,  however,  that, if such Terminating
Company Breach is curable by the Company through the exercise of reasonable best
efforts  and  such  cure is  reasonably  likely  to be  completed  prior  to the
applicable  date  specified in Section  7.1(b),  then for so long as the Company
continues to exercise  reasonable  best efforts,  Parent may not terminate  this
Agreement under this Section 7.1(g);  and provided  further that for purposes of
this subsection (g), actions of representatives or agents of the Company who are
not  officers,  directors or  employees of the Company  which do not result in a
proposal for an  Alternative  Transaction  shall not be deemed to be a breach of
Section 5.3 so long as the Company has used commercially  reasonable  efforts to
cause such representatives and agents to comply with Section 5.3); or

                  (h) by the  Company  if (i)  the  Company  is not in  material
breach  of its  obligations  under  this  Agreement  and (ii)  there  has been a
material  breach  by  Parent  of  any  of its  representations,  warranties,  or
obligations  under this  Agreement  such that the conditions in Section 6.3 will
not be satisfied ("Terminating Parent Breach"); provided, however, that, if such
Terminating  Parent  Breach  is  curable  by  Parent  through  the  exercise  of
reasonable best efforts and such cure is reasonably likely to be completed prior
to the applicable date specified in Section  7.1(b),  then for so long as Parent
continues to exercise  reasonable  best  efforts,  the Company may not terminate
this Agreement under this Section 7.1(h).

                  7.2 Effect of Termination.

                  (a) In recognition of the time, efforts, and expenses expended
and incurred by Parent with respect to the Company and the opportunity  that the
acquisition of the Company presents to Parent, if:

                           (i) this Agreement is validly terminated  pursuant to
                  Section 7.1(e) or 7.1(f); or

                           (ii) (A) this  Agreement  is  validly  terminated  by
                  Parent or the Company  pursuant  to Section  7.1(d) due to the
                  failure of the Company's  stockholders  to

                                      42.

<PAGE>


                  approve  the Merger,  (B) at any time  between the date hereof
                  and the time of such  failure  to so  approve  the  Merger,  a
                  proposal for a Competing  Transaction shall have been publicly
                  announced,  (C)  within  12  months  after  the  date  of such
                  termination,  the Company shall have entered into a definitive
                  agreement  with  a  Third  Party  providing  for  a  Competing
                  Transaction, and (D) a Competing Transaction is consummated by
                  the Company  with the same Third Party that  entered  into the
                  definitive  agreement  referenced  in clause  (C) above or any
                  affiliate of such Third Party within two years after  entering
                  into the agreement referenced in clause (C) above;

then, in any such event (but subject to Section7.2(c)),  the Company will pay to
Parent,  upon the  termination  date in the  event of  termination  pursuant  to
Section 7.1(f),  within five business days after demand by Parent in the case of
termination  pursuant  to Section  7.1(e),  or within five  business  days after
consummating  the Competing  Transaction  referenced in clause (ii) (D) above in
the case of the  events  specified  in clause  (ii) above (by wire  transfer  of
immediately  available  funds  to an  account  designated  by  Parent  for  such
purpose),  a  fee  equal  to  $135,000,000.  For  purposes  of  this  Agreement,
"Competing  Transaction"  means:  (i) any  consolidation,  exchange of shares or
merger of the Company with any Third Party, other than a consolidation, exchange
or shares or merger as a result of which the  holders  of Company  Common  Stock
immediately prior to such transaction beneficially own 50% or more of the voting
stock of the Company, the surviving corporation or any parent entity immediately
after the  transaction,  (ii) any transaction or series of related  transactions
pursuant to which a Third Party acquires  shares (or securities  exercisable for
or convertible into shares) representing more than 50% of the outstanding shares
of any  class  of  capital  stock of the  Company;  or (iii)  any  sale,  lease,
exchange,  licensing,  transfer or other  disposition  pursuant to which a Third
Party  acquires  control  of more  than 50% of the  assets  (including,  but not
limited to,  intellectual  property  assets) of the Company and its Subsidiaries
taken as a whole  (determined  by  reference  to the fair  market  value of such
assets), in a single transaction or series of related transactions.

                  (b) The Company  acknowledges that the agreements contained in
this Section 7.2 are an integral part of the  transactions  contemplated by this
Agreement  and are not a penalty,  and that,  without these  agreements,  Parent
would not enter into this  Agreement.  If the Company  fails to pay promptly the
fee due  pursuant  to  Section  7.2(a),  the  Company  shall  also pay to Parent
Parent's  costs and expenses  (including  legal fees and expenses) in connection
with any action,  including  the filing of any  lawsuit or other  legal  action,
taken to collect payment, together with interest on the amount of the unpaid fee
under this  section,  accruing  from its due date, at an interest rate per annum
equal to two percentage  points in excess of the prime  commercial  lending rate
quoted by Norwest Bank Minnesota, N.A.; provided, however, that Parent shall pay
to the  Company  the  Company's  costs and  expenses  (including  legal fees and
expenses)  incurred in connection  with any such legal action if Parent's claims
against  the  Company in such  legal  action do not  prevail.  Any change in the
interest  rate  hereunder  resulting  from a change in such  prime rate shall be
effective at the beginning of the day of such change in such prime rate.

                  (c) Parent  agrees  that the payment  provided  for in Section
7.2(a) shall be the sole and exclusive remedy of Parent upon termination of this
Agreement  pursuant to Section  7.1(e)

                                      43.

<PAGE>


and  7.1(f),  as the case may be,  and such  remedy  shall be limited to the sum
stipulated in such Section 7.2(a),  regardless of the circumstances  giving rise
to such termination;  provided,  however,  that nothing herein shall relieve any
party  from  liability  for the  willful  breach of any of its  representations,
warranties,  covenants or agreements  set forth in this  Agreement.  In no event
shall the Company be  required  to pay to Parent  more than one fee  pursuant to
Section  7.2(a).  In no  event  shall  the sum of (i) the  termination  fee paid
pursuant  to Section  7.2(a),  (ii) the  Cancellation  Amount (as defined in the
Stock Option Agreement) paid pursuant to the Stock Option  Agreement,  (iii) the
aggregate  Option Share Profit (as defined in the Stock  Option  Agreement)  not
remitted to the Company pursuant to Section 2(c) of the Stock Option  Agreement,
and (iv) the Section 5 Repurchase  Consideration (as defined in the Stock Option
Agreement) paid to Parent exceed $150,000,000.  In addition,  the fee payable by
the Company  pursuant to Section 7.2(a) shall be reduced (but not below zero) by
any Cancellation Amount paid pursuant to the Stock Option Agreement,  any Option
Share Profit not  remitted to the Company  pursuant to Section 2(c) of the Stock
Option Agreement and any Section 5 Repurchase Consideration paid pursuant to the
Stock  Option  Agreement.  Except  as  provided  in the  next  sentence  of this
paragraph,  in the event of the  termination of this  Agreement  pursuant to any
paragraph of Section  7.1,  the  obligations  of the parties to  consummate  the
Merger will expire,  and none of the parties  will have any further  obligations
under this Agreement except pursuant to Sections 5.4(b), 5.8, 7.2(a), 7.2(b) and
7.2(c) and Article 8. Nothing  herein shall relieve any party from liability for
the  willful  breach of any of its  representations,  warranties,  covenants  or
agreements set forth in this Agreement.


                                    ARTICLE 8

                                  MISCELLANEOUS

         8.1  Amendment  and  Modification.  Subject  to  applicable  law,  this
Agreement may be amended, modified, or supplemented only by written agreement of
Parent,  Merger  Subsidiary,  and the Company at any time prior to the Effective
Time with respect to any of the terms contained herein; provided, however, that,
after the approval of this  Agreement  by the  stockholders  of the Company,  no
amendment  may be made  which  would  reduce  the  amount or change  the type of
consideration  into which each share of Company  Common Stock shall be converted
upon  consummation  of the Merger or which would otherwise  require  stockholder
approval under applicable law unless such  stockholder  approval shall have been
obtained.  This  Agreement may not be amended except by an instrument in writing
signed on behalf of each of the parties hereto.

         8.2 Waiver of  Compliance;  Consents.  Any  failure of Parent or Merger
Subsidiary on the one hand, or the Company on the other hand, to comply with any
obligation,  covenant,  agreement,  or  condition  herein  may be  waived by the
Company  or  Parent,  respectively,  only by a written  instrument  signed by an
officer of the party granting such waiver,  but such waiver or failure to insist
upon strict compliance with such obligation,  covenant,  agreement, or condition
shall not operate as a waiver of, or estoppel with respect to, any subsequent or
other  failure.  Whenever this  Agreement  requires or permits  consent by or on
behalf of any party  hereto,  such  consent  shall be given in  writing.  Merger
Subsidiary  agrees  that any  consent  or waiver of

                                      44.

<PAGE>


compliance given by Parent  hereunder shall be conclusively  binding upon Merger
Subsidiary, whether or not given expressly on its behalf.

         8.3  Investigation;  Survival of  Representations  and Warranties.  The
respective  representations  and warranties of Parent and the Company  contained
herein or in any  certificates or other  documents  delivered prior to or at the
Closing  shall not be deemed waived or otherwise  affected by any  investigation
made by any party hereto. The representations, warranties and agreements in this
Agreement and in any  certificate  delivered  pursuant hereto shall terminate at
the Effective  Time,  except that the  agreements set forth in Articles I and II
and Sections  5.7(b),  5.8, 5.9, 5.15,  5.18,  5.19, 5.20, 5.21 and this Article
VIII shall survive the Effective Time.

         8.4 Notices. All notices and other communications hereunder shall be in
writing  and shall be deemed  given  when  delivered  personally  by  commercial
courier service or otherwise, or by telecopier,  or three days after such notice
is mailed by  registered  or certified  mail (return  receipt  requested) to the
parties at the  following  addresses  (or at such other  address  for a party as
shall be specified by like notice):

                  (a) If to Parent or Merger Subsidiary, to it at:

                           Medtronic, Inc.
                           7000 Central Avenue N.E.
                           Minneapolis, MN 55432

                           with separate copies thereof addressed to:

                           Attention: General Counsel
                                      FAX: (612) 572-5459

                           and

                           Attention: Vice President and Chief Development
                                      Officer
                                      FAX: (612) 572-5404

                  (b) If to the Company, to it at:

                           Arterial Vascular Engineering, Inc.
                           3576 Unocal Place
                           Santa Rosa, CA 95403
                           FAX: (707) 541-3190
                           Attention: General Counsel

                                      45.

<PAGE>


                           with a copy to:

                           Cooley Godward LLP
                           5 Palo Alto Square
                           3000 El Camino Real
                           Palo Alto, CA  94306
                           FAX: (650) 857-0663
                           Attention: Craig E. Dauchy, Esq. and

                                      Richard E. Climan, Esq.


         8.5 Assignment.  This Agreement and all of the provisions  hereof shall
be  binding  upon and  inure to the  benefit  of the  parties  hereto  and their
respective  successors and permitted assigns, but neither this Agreement nor any
of the rights,  interests,  or obligations hereunder shall be assigned by any of
the parties  hereto  without  the prior  written  consent of the other  parties.
Except for the  provisions  of Article II and  Section  5.15 (the  "Third  Party
Provisions"),  this  Agreement is not intended to confer upon any other  person,
except the parties hereto, any rights or remedies hereunder, and no third person
shall be a third party beneficiary of this Agreement. The Third Party Provisions
may be enforced by the beneficiaries thereof.

         8.6  Governing  Law.   Except  to  the  extent  that  Delaware  law  is
mandatorily  applicable,  this  Agreement  shall be  governed by the laws of the
State of Minnesota  (regardless  of the laws that might  otherwise  govern under
applicable  Minnesota  principles of conflicts of law).  The parties  hereby (i)
agree and  consent  to be subject  to the  jurisdiction  of any state or federal
court in the state of Delaware or in  Minneapolis or St. Paul,  Minnesota,  with
respect to all  actions  and  proceedings  arising  out of or  relating  to this
Agreement  (although  each  party  reserves  the right to bring  such  action or
proceedings in any other jurisdiction to which the other party is subject); (ii)
agree that all claims with respect to any such action or proceeding may be heard
and  determined  in such  court;  (iii)  irrevocably  waive  any  defense  of an
inconvenient forum to the maintenance of any action or proceeding in such court;
(iv) consent to service of process by mailing or delivering  such service to the
party at its respective  principal business address;  and (v) agree that a final
judgment in any such action or proceeding  from which there is no further appeal
shall be conclusive  and may be enforced in any other  jurisdictions  by suit on
the judgment or in any manner provided by law.

         8.7  Counterparts.  This  Agreement  may be  executed  in  two or  more
counterparts,  each of  which  shall be  deemed  an  original,  and all of which
together shall constitute one and the same instrument.

         8.8  Knowledge.   As  used  in  this  Agreement  or  the   instruments,
certificates or other documents  required  hereunder,  the term "knowledge" of a
party hereto shall mean actual knowledge of the directors or executive  officers
of such party.

         8.9 Interpretation. The Table of Contents, article and section headings
contained in this  Agreement are inserted for reference  purposes only and shall
not affect the meaning or interpretation of this Agreement. This Agreement shall
be construed  without  regard to any

                                      46.

<PAGE>


presumption or other rule  requiring the  resolution of any ambiguity  regarding
the  interpretation  or  construction  hereof  against  the party  causing  this
Agreement to be drafted.

         8.10  Publicity.  Upon  execution of this  Agreement by Parent,  Merger
Subsidiary, and the Company, the parties shall jointly issue a press release, as
agreed  upon  by  them.  The  parties  intend  that  all  future  statements  or
communications  to the public or press  regarding  this  Agreement or the Merger
will be mutually agreed upon by them.  Neither party shall,  without such mutual
agreement  or  the  prior   consent  of  the  other,   issue  any  statement  or
communication to the public or to the press regarding this Agreement,  or any of
the terms, conditions,  or other matters with respect to this Agreement,  except
as required by law or the rules of the NYSE or Nasdaq and then only (a) upon the
advice of such party's legal counsel;  (b) to the extent  required by law or the
rules of the NYSE or Nasdaq; and (c) following prior notice to, and consultation
with,  the other  party  (which  notice  shall  include  a copy of the  proposed
statement or communication  to be issued to the press or public).  The foregoing
shall not restrict Parent's or the Company's communications with their employees
or customers in the ordinary course of business.

         8.11 Entire  Agreement.  This  Agreement,  including  the  exhibits and
schedules hereto and the Confidentiality  Agreement referred to herein, embodies
the entire  agreement and  understanding of the parties hereto in respect of the
subject  matter  contained  herein.   This  Agreement  and  the  Confidentiality
Agreement  supersede all prior  agreements  and the  understandings  between the
parties with respect to such subject matter.

         8.12 Severability.  If any term or other provision of this Agreement is
invalid,  illegal or  incapable  of being  enforced by any rule of law or public
policy, all other conditions and provisions of this Agreement shall nevertheless
remain in full force and effect so long as the  economic or legal  substance  of
the  transactions  contemplated  by this Agreement is not affected in any manner
materially  adverse to any party. Upon such determination that any term or other
provision is invalid, illegal or incapable of being enforced, the parties hereto
shall  negotiate  in good  faith to modify  this  Agreement  so as to effect the
original  intent of the parties as closely as possible in a mutually  acceptable
manner  in  order  that  the  transactions  contemplated  by this  Agreement  be
consummated as originally contemplated to the fullest extent possible.

         8.13 Specific  Performance.  The parties hereto agree that  irreparable
damage  would  occur  in the  event  any  provision  of this  Agreement  was not
performed  in  accordance  with the terms  hereof and that the parties  shall be
entitled to specific  performance of the terms hereof,  in addition to any other
remedy at law or in equity.


                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]


                                      47.

<PAGE>


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



                                       MEDTRONIC, INC.


                                       By: _____________________________________
                                           Michael D. Ellwein, Vice President
                                           and Chief Development Officer




                                       MAV MERGER CORP.


                                       By: _____________________________________
                                           Michael D. Ellwein, President




                                       ARTERIAL VASCULAR ENGINEERING, INC.


                                       By: _____________________________________
                                           Its: ________________________________


                                      48.




                             STOCK OPTION AGREEMENT


         THIS  AGREEMENT is dated as of November 29,  1998,  between  Medtronic,
Inc., a Minnesota  corporation  ("Grantee"),  and Arterial Vascular Engineering,
Inc., a Delaware corporation ("Issuer").


                                    RECITALS

         A. Grantee,  Issuer,  and MAV Merger Corp., a Delaware  corporation and
wholly-owned  subsidiary of Grantee ("Merger Subsidiary"),  are entering into an
Agreement  and Plan of Merger (the "Merger  Agreement")  which  provides,  among
other things, that, upon the terms and subject to the conditions thereof, Merger
Subsidiary will be merged with and into Issuer (the "Merger").

         B.  As a  condition  to  its  willingness  to  enter  into  the  Merger
Agreement,  Grantee has required  that Issuer enter into this  Agreement,  which
provides, among other things, that Issuer grant to Grantee an option to purchase
shares of Issuer's Common Stock,  $.001 par value ("Issuer Common Stock"),  upon
the terms and subject to the conditions provided for herein.

         NOW,  THEREFORE,  in consideration of the premises and mutual covenants
and agreements contained in this Agreement and the Merger Agreement, the parties
agree as follows:

         1.  Grant of  Option.  Subject  to the  terms  and  conditions  of this
Agreement,  Issuer hereby grants to Grantee an irrevocable option (the "Option")
to purchase  12,807,795 shares of Issuer Common Stock (the "Option Shares"),  in
the manner set forth below,  at an exercise  price of $54.00 per share of Issuer
Common  Stock,  subject to adjustment  as provided  below (the "Option  Price").
Issuer  represents that the Option Shares represent at least 19.9% of the number
of shares of Issuer  Common Stock  outstanding  on the date hereof.  Capitalized
terms used herein but not defined  herein  shall have the  meanings set forth in
the Merger Agreement.

         2.       Exercise of Option.

                  (a)  Subject to the terms and  conditions  of this  Agreement,
         Grantee or its designee  (which shall be a  wholly-owned  subsidiary of
         Grantee) may,  prior to the  Expiration  Date (as defined in Section 12
         hereof),  exercise the Option, in whole or in part, at any time or from
         time to time on or  after  the  occurrence  of an  Exercise  Event  (as
         defined below).  As used herein, an "Exercise Event" shall mean (i) the
         occurrence  of a  termination  specified  in Section  7.2(a)(i)  of the
         Merger  Agreement  or (ii)  the  occurrence  of all of the  events  and
         circumstances  specified  in  clauses  (A),  (B)  and  (C)  of  Section
         7.2(a)(ii)   of  the  Merger   Agreement;   provided,   however,   that
         notwithstanding  anything to the contrary  contained in this Agreement,
         if the Option  becomes  exercisable  as a result of the Exercise  Event
         referred to in Section 2(a)(ii)  hereof,  Grantee shall not be entitled
         to exercise the  cancellation  right  referred to below in this Section
         2(a) unless and until all of

                                     - 1 -

<PAGE>


         the events and circumstances specified in clauses (A), (B), (C) and (D)
         of Section 7.2(a)(ii) of the Merger Agreement shall have occurred.

                  (b) In the event Grantee wishes to exercise the Option at such
         time as the Option is exercisable, Grantee shall deliver written notice
         (the "Exercise  Notice") to Issuer exercising the Option and specifying
         the total number of Option Shares it wishes to purchase, and a date and
         time for the closing of such purchase (a "Closing")  not less than five
         nor more  than 30  business  days  after the later of (i) the date such
         Exercise  Notice is given and (ii) the expiration or termination of any
         applicable  waiting  period  under  the   Hart-Scott-Rodino   Antitrust
         Improvements  Act of 1976,  as amended (the "HSR Act").  Subject to the
         proviso  at the  end of  Section  2(a)  hereof,  when  this  Option  is
         exercisable,  Grantee, in lieu of exercising the Option, shall have the
         right at any time thereafter prior to the Expiration Date to request in
         writing that Issuer pay,  and promptly  (but in any event not more than
         five business  days) after  Grantee  makes such request,  Issuer shall,
         subject to Section  2(c)  below,  pay to  Grantee by  certified  check,
         official   bank  check  or  wire   transfer   pursuant   to   Grantee's
         instructions,  in  cancellation  of the Option,  an amount in cash (the
         "Cancellation Amount") equal to (i) the greater of

                           (x) the excess,  if any, over the Option Price of the
                  greater of (A) the last sale price of a share of Issuer Common
                  Stock as  reported  on the  Nasdaq  National  Market (or other
                  United State  national  exchange  upon which  Issuer's  Common
                  Stock is traded) on the last  trading day prior to the date of
                  the Exercise Notice, (B) the highest price per share of Issuer
                  Common Stock offered to be paid or paid in connection with any
                  Alternative  Transaction  occurring  after the date hereof and
                  prior  to the  Expiration  Date,  and  (C) in the  case of any
                  Alternative  Transaction  structured as an asset  acquisition,
                  the  highest  net  consideration  to  be  distributed  to  the
                  stockholders  of  the  Company  in  any  such  transaction  or
                  proposed transaction occurring after the date hereof and prior
                  to the  Expiration  Date after,  among any other  payments and
                  deductions,  payment of all  indebtedness  of the  Company not
                  being  assumed,  divided  by the  number  of  shares of Issuer
                  Common Stock outstanding on a fully diluted basis, and

                           (y)  $150,000,000  divided by the  initial  number of
                  Option Shares covered by the Option,

         multiplied  by (ii) the  number of Option  Shares  then  covered by the
         Option;  provided,  however,  that  the  Cancellation  Amount  shall be
         reduced (but not below zero) to the extent necessary so that the sum of
         the termination fee described in Section 7.2(a) of the Merger Agreement
         (the  "Termination  Fee") paid to Grantee,  the Option Share Profit (as
         defined below) not remitted to Issuer  pursuant to Section 2(c) hereof,
         the  Section 5  Repurchase  Consideration  (as  defined  below) paid to
         Grantee and the Cancellation Amount shall not exceed  $150,000,000.  If
         all or a portion of the price per share of Issuer Common Stock offered,
         paid,  or payable or the  aggregate  consideration  offered,  paid,  or
         payable for the assets of Issuer, each as contemplated by the preceding
         sentence,  consists of noncash  consideration,  such price or aggregate
         consideration  shall be the cash

                                     - 2 -

<PAGE>


         consideration,  if any,  plus the  fair  market  value  of the  noncash
         consideration  as  mutually  determined  by the  investment  bankers of
         Issuer and the investment bankers of Grantee. In no event shall (i) the
         Cancellation  Amount  exceed  $150,000,000  or  (ii)  the  sum  of  the
         Termination  Fee paid,  the Option  Share Profit not remitted to Issuer
         pursuant to Section 2(c) hereof, the Section 5 Repurchase Consideration
         paid and the Cancellation Amount paid exceed $150,000,000.

                  (c) In the event that Grantee at any time sells,  pledges,  or
         otherwise  disposes of  (including,  without  limitation,  by merger or
         exchange) any of the Option Shares (a "Sale"), or in the event that any
         Cancellation  Amount or Section 5 Repurchase  Consideration  is paid to
         Grantee or any Option  Share  Profit is  received  by Grantee  (and not
         required to be remitted to Issuer pursuant to this Section 2(c)),  then
         any  Termination  Fee due and payable by Issuer shall be reduced to the
         extent necessary so that the sum of

                           (v) the Termination Fee;

                           (w) any Cancellation Amount paid to Grantee;

                           (x) any Section 5  Repurchase  Consideration  paid to
                  Grantee;

                           (y)  the  amount  received  (whether  in  cash,  loan
                  proceeds,  securities,  or  otherwise) by Grantee in such Sale
                  less the exercise price of such Option Shares sold in the Sale
                  (the  "Option  Share  Profit")  and  not  remitted  to  Issuer
                  pursuant to this Section 2(c); and

                           (z) Option Share Profit  received in connection  with
                  any prior  sales of Option  Shares and not  remitted to Issuer
                  pursuant to this Section 2(c),

         shall not exceed  $150,000,000.  Grantee shall remit to Issuer,  within
         ten business days after completion of any Sale, the amount,  if any, by
         which the Option Share  Profit from such Sale which,  when added to the
         Termination Fee previously  paid, the  Cancellation  Amount  previously
         paid, the Section 5 Repurchase  Consideration  previously  paid and the
         Option Share  Profit from prior sales of Option  Shares not remitted to
         Issuer pursuant to this Section 2(c), exceeds $150,000,000.

         3. Payment of Option Price and  Delivery of  Certificate.  Any Closings
under  Section 2 hereof  shall be held at the  principal  executive  offices  of
Issuer,  or at such other place as Issuer and Grantee may agree.  At any Closing
hereunder,  (a)  Grantee  or its  designee  will make  payment  to Issuer of the
aggregate  price for the Option  Shares  being so  purchased  by  delivery  of a
certified  check,  official bank check,  or wire  transfer of funds  pursuant to
Issuer's  instructions  payable  to  Issuer in an  amount  equal to the  product
obtained by  multiplying  the Option Price by the number of Option  Shares to be
purchased,  and (b) upon receipt of such payment (and the satisfaction or waiver
of the conditions set forth in Section 10 hereof) Issuer will deliver to Grantee
or its  designee  (which  shall  be a  wholly-owned  subsidiary  of  Grantee)  a
certificate or certificates  representing  the number of validly  issued,  fully
paid, and  nonassessable  Option

                                     - 3 -

<PAGE>


Shares so purchased,  in the  denominations  and registered in such names (which
shall be Grantee or a wholly-owned  subsidiary of Grantee) designated in writing
to Issuer by Grantee.


         4.       Registration and Listing of Option Shares.

                  (a) Issuer agrees to use  commercially  reasonable  efforts to
         (i) effect as promptly as possible upon the request of Grantee and (ii)
         cause to become and remain  effective for a period of not less than six
         months  (or such  shorter  period as may be  necessary  to  effect  the
         distribution  of any  Option  Shares  specified  in such  request)  the
         registration  under the 1933 Act, and any applicable  state  securities
         laws,  of the resale of all or any part of the Option  Shares as may be
         specified in such request;  provided,  however,  that (A) Grantee shall
         have the right to select the managing underwriter for any such offering
         after  consultation  with Issuer,  which managing  underwriter shall be
         reasonably  acceptable to Issuer,  (B) Grantee shall not be entitled to
         more than two  effective  registration  statements  hereunder,  and (C)
         Grantee shall not be entitled to request such a registration  statement
         within a period of one year after the effective  date of a registration
         statement in which Grantee included or was entitled to include all or a
         portion of the Option Shares.  The  obligations of Issuer  hereunder to
         file a registration  statement and to maintain its effectiveness may be
         suspended  for one or more periods of time not exceeding 90 days in the
         aggregate  in any one year period if the Board of  Directors  of Issuer
         shall  have   determined   in  good  faith  that  the  filing  of  such
         registration  or the  maintenance  of its  effectiveness  would require
         disclosure of nonpublic information that would materially and adversely
         affect Issuer.  Upon receipt of notice of the happening of any event as
         a result of which any registration  statement,  prospectus,  prospectus
         supplement,  or any  document  incorporated  by reference in any of the
         foregoing,  contains any untrue statements of material fact or fails or
         omits to state any  material  fact  required  to be stated  therein  or
         necessary to make the statements therein, in light of the circumstances
         under which they are made,  not  misleading,  Grantee  shall  forthwith
         discontinue  the  disposition  of any shares  under  such  registration
         statement,  prospectus or prospectus  supplement until Grantee receives
         from Issuer copies (which subject to the  limitations on suspension set
         forth above shall  promptly be made  available by Issuer) of an amended
         or  supplemented  registration  statement,  prospectus or supplement so
         that,  as  thereafter  delivered  to  purchases  of such  shares,  such
         registration  statement,  prospectus or prospectus supplement shall not
         contain any untrue  statement of material fact or fail or omit to state
         any material  fact  required to be stated  therein or necessary to make
         the statements  therein, in light of the circumstances under which they
         are made, not misleading.

                  (b) In  addition  to  such  demand  registrations,  if  Issuer
         proposes to effect a  registration  of Issuer  Common Stock for its own
         account or for the account of any other  stockholder  of Issuer  (other
         than in  connection  with  (i)  employee  stock  option  plans or other
         employee  or  consultant  benefit  arrangements  or (ii)  corporate  or
         business  acquisitions),  Issuer  will give  prompt  written  notice to
         Grantee of its intention to do so and shall use commercially reasonable
         efforts to include therein all Option Shares

                                     - 4 -

<PAGE>


         requested by Grantee to be so included; provided, however, that, if the
         managing  underwriter  of the  offering  covered  by such  registration
         advises  Issuer  that  in its  opinion  the  number  of  Option  Shares
         requested to be included in such  registration  exceeds the number that
         can be sold in such  offering,  Issuer  shall,  after  fully  including
         therein  all  securities  to be  sold by  Issuer,  include  the  shares
         requested  to be  included  therein by Grantee  pro rata  (based on the
         number of shares  intended  to be  included  therein)  with the  shares
         intended  to be  included  therein by persons  other  than  Issuer.  In
         connection  with any  offering,  sale and  delivery  of  Option  Shares
         pursuant to a registration  statement effected pursuant to this Section
         4(b), Grantee shall provide Issuer and each underwriter of the offering
         with  customary   representations,   warranties   and   covenants.   No
         registration  effected  under this Section 4(b) shall relieve Issuer of
         its  obligations  to effect  demand  registrations  under  Section 4(a)
         hereof.

                  (c)  Registrations  effected  under  this  Section  4 shall be
         effected  at  Issuer's  expense,  including  the fees and  expenses  of
         counsel  to  Grantee,   but   excluding   underwriting   discounts  and
         commissions to brokers or dealers. In connection with each registration
         under this  Section 4, Issuer shall  indemnify  and hold  Grantee,  its
         underwriters,  and each of their respective affiliates harmless against
         any  and  all  losses,  claims,  damage,   liabilities,   and  expenses
         (including,  without  limitation,  investigation  expenses and fees and
         disbursements of counsel and accountants),  joint or several,  to which
         Grantee, its underwriters,  and each of their respective affiliates may
         become  subject,  under  the 1933  Act or  otherwise,  insofar  as such
         losses,  claims,  damages,  liabilities,  or  expenses  (or  actions in
         respect  thereof) arise out of or are based upon an untrue statement or
         alleged   untrue   statement  of  a  material  fact  contained  in  any
         registration  statement  (including  any  prospectus  therein),  or any
         amendment or supplement  thereto, or arise out of or are based upon the
         omission or alleged  omission to state therein a material fact required
         to be stated  therein or necessary to make the  statements  therein not
         misleading,  other than such losses, claims, damages,  liabilities,  or
         expenses (or actions in respect thereof) that arise out of or are based
         upon an untrue statement or alleged untrue statement of a material fact
         contained  in  written  information  furnished  by  Grantee  to  Issuer
         expressly for use in such registration statement.

                  (d) In connection with any registration  statement pursuant to
         this Section 4, Grantee agrees to furnish Issuer with such  information
         concerning  itself  and the  proposed  sale or  distribution  as  shall
         reasonably  be  required  in  order  to  ensure   compliance  with  the
         requirements of the 1933 Act. In addition,  Grantee shall indemnify and
         hold Issuer,  its underwriters and each of their respective  affiliates
         harmless against any and all losses, claims, damages,  liabilities, and
         expenses  (including,  without limitation,  investigation  expenses and
         fees and disbursements of counsel and  accountants),  joint or several,
         to  which  Issuer,  its  underwriters,  and  each of  their  respective
         affiliates may become subject under the 1933 Act or otherwise,  insofar
         as such losses, claims, damages,  liabilities,  or expenses (or actions
         in respect  thereof) arise out of or are based upon an untrue statement
         or alleged  untrue  statement of a material  fact  contained in written
         information  furnished by Grantee to Issuer  expressly  for use in such
         registration statement.

                                     - 5 -

<PAGE>


                  (e) Upon the issuance of Option Shares hereunder,  Issuer will
         use  commercially  reasonable  efforts  promptly  to cause such  Option
         Shares to be quoted on Nasdaq or on such national or other  exchange on
         which  the  shares  of Issuer  Common  Stock are at the time  listed or
         quoted.

         5.       Repurchase at the Option of Issuer.

                  (a) At the  request of Issuer at any time  during the  180-day
         period  commencing  on the 180th day after the date on which the Option
         was first exercised in whole or in part (the "Call Period"), Issuer may
         repurchase from Grantee, and Grantee shall sell to Issuer, up to 95% of
         the shares of Issuer Common Stock acquired by Grantee  pursuant  hereto
         and with respect to which Grantee has beneficial  ownership at the time
         of such  repurchase at a price per share equal to the Repurchase  Price
         (defined  below) per share in respect of the shares so  acquired  (such
         price per share  multiplied  by the  number of shares of Issuer  Common
         Stock to be repurchased  pursuant to this Section 5 being herein called
         the  "Section 5  Repurchase  Consideration").  The date on which Issuer
         exercises its rights under this Section 5 by delivering  its request to
         Grantee is referred to as the "Issuer  Request Date."  Issuer's  rights
         under this Section 5 shall be  suspended  (and the Call Period shall be
         extended  accordingly)  during any  period  when the  exercise  of such
         rights would subject Grantee to liability  pursuant to Section 16(b) of
         the  Exchange  Act  by  reason  of the  issuance  of  the  Option,  any
         adjustment  pursuant to Section 11 hereof, or the Grantee's purchase of
         any Option Shares hereunder.  "Repurchase Price" per share shall be the
         sum of (i) the  Option  Price plus (ii) the amount  that  results  from
         dividing (A) $150,000,000 minus the sum of (I) any Termination Fee paid
         to  Grantee,  (II) any  Option  Share  Profit  not  remitted  to Issuer
         pursuant  to  Section  2(c)  hereof,  (III) any  Section  5  Repurchase
         Consideration  paid to Grantee pursuant to this Section 5 plus (IV) any
         Cancellation Amount paid to Grantee by (B) the initial number of Option
         Shares covered by the Option,  provided,  however, that notwithstanding
         anything to the  contrary  contained in this  Agreement,  if the Option
         becomes  exercisable  as a result of the Exercise  Event referred to in
         Section  2(a)(ii)  hereof,  the Repurchase  Price shall be equal to the
         Option Price if the repurchase of shares  pursuant to this Section 5 is
         completed before the occurrence of the event specified in clause (D) of
         Section 7.2(a)(ii) of the Merger Agreement.

                  (b)  The  Section  5  Repurchase  Consideration  to be paid in
         connection  with any repurchase  request shall be reduced to the extent
         necessary so that the sum of

                           (v) the Section 5 Repurchase Consideration to be paid
                  in the repurchase which is the subject of Issuer's  repurchase
                  request at issue;

                           (w) any Section 5 Repurchase Consideration previously
                  paid;

                           (x) any Cancellation Amount paid to Grantee;

                           (y) any Termination Fee paid to Grantee; and

                                     - 6 -

<PAGE>


                           (z) any Option  Share  Profit not  remitted to Issuer
                  pursuant to Section 2(c),

         shall not exceed $150,000,000.

                  (c) If Issuer  exercises  its  rights  under  this  Section 5,
         Issuer shall,  within five business days after the Issuer Request Date,
         pay the Section 5  Repurchase  Consideration,  subject to  reduction as
         provided in Section 5(b) above,  in immediately  available  funds,  and
         Grantee shall surrender to Issuer certificates evidencing the shares of
         Issuer Common Stock purchased  hereunder,  and Grantee shall warrant to
         Issuer that,  immediately  prior to the repurchase  thereof pursuant to
         this  Section 5,  Grantee had sole record and  beneficial  ownership of
         such  shares and that such  shares were then held free and clear of all
         Encumbrances.

         6.  Representations and Warranties of Issuer.  Issuer hereby represents
and warrants to Grantee as follows:

                  (a) Issuer 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 enter into and perform
         this Agreement.

                  (b) The execution and delivery of this Agreement by Issuer and
         the consummation by Issuer of the transactions contemplated hereby have
         been duly and validly  authorized  by the Board of Directors of Issuer,
         and except to the extent of any Nasdaq requirements, no other corporate
         proceedings  on the part of Issuer  are  necessary  to  authorize  this
         Agreement or to consummate the transactions  contemplated  hereby.  The
         Board of Directors of Issuer has duly approved the issuance and sale of
         the  Option  Shares,  upon the  terms  and  subject  to the  conditions
         contained in this Agreement,  and the  consummation of the transactions
         contemplated  hereby. This Agreement has been duly and validly executed
         and delivered by Issuer and,  assuming this Agreement has been duly and
         validly authorized,  executed, and delivered by Grantee,  constitutes a
         valid and binding  obligation of Issuer  enforceable  against Issuer in
         accordance   with  its  terms,   subject  to  bankruptcy,   insolvency,
         reorganization, moratorium, or other similar laws affecting or relating
         to creditors,  rights generally;  the availability of injunctive relief
         and other  equitable  remedies and general  principles  of equity;  and
         limitations  imposed  by law on  indemnification  for  liability  under
         federal securities laws.

                  (c)  Except  as may be  required  in  accordance  with  Nasdaq
         requirements,  Issuer has taken all  necessary  action to authorize and
         reserve for issuance  and to permit it to issue,  and at all times from
         the date of this Agreement through the date of expiration of the Option
         will have  reserved  for  issuance  upon  exercise of the Option,  such
         number of  authorized  shares of Issuer Common Stock as is equal to the
         number of  Option  Shares  (or such  other  amount  as may be  required
         pursuant to Section 11 hereof),  each of which,  upon issuance pursuant
         to this Agreement and when paid for as provided herein, will be

                                     - 7 -

<PAGE>


         validly issued,  fully paid, and nonassessable,  and shall be delivered
         free  and  clear  of all  claims,  liens,  charges,  encumbrances,  and
         security   interests   and  not  subject  to  any   preemptive   rights
         (collectively, "Encumbrances").

                  (d)  Except  as may be  required  in  accordance  with  Nasdaq
         requirements,   the  execution,   delivery,  and  performance  of  this
         Agreement  by Issuer  and the  consummation  by it of the  transactions
         contemplated  hereby except as required by the HSR Act (if applicable),
         and, with respect to Section 4,  compliance  with the provisions of the
         1933 Act and any applicable  state  securities laws, do not require the
         consent,  waiver,  approval,  license, or authorization of or result in
         the  acceleration  of any  obligation  under,  or  constitute a default
         under,  any term,  condition,  or provision of any charter or bylaw, or
         any indenture,  mortgage, lien, lease, agreement, contract, instrument,
         order, judgment, ordinance, regulation, or decree or any restriction to
         which  Issuer or any property of Issuer or its  subsidiaries  is bound,
         except where the failure to obtain such consents,  waivers,  approvals,
         licenses,  or  authorizations  or where such  acceleration  or defaults
         could not, individually or in the aggregate,  reasonably be expected to
         have a Company Material Adverse Effect.

                  (e) The  Company  has  taken  all  action  and  completed  all
         amendments,  if any,  necessary or  appropriate  so that (i) the Rights
         Agreement  dated as of  February  26,  1997,  as  amended,  between the
         Company and  BankBoston,  N.A. (the  "Company  Rights  Agreement"),  is
         inapplicable to the  transactions  contemplated by this Agreement,  the
         Agreements to Facilitate Merger, and the Merger Agreement, and (ii) the
         execution of this Agreement,  the Agreements to Facilitate  Merger, and
         the  Merger  Agreement,   and  the  consummation  of  the  transactions
         contemplated  hereby  and  thereby,  do not and will not (w)  result in
         Grantee  being an  "Acquiring  Person"  (as such term is defined in the
         Company Rights  Agreement),  (x) result in the ability of any person to
         exercise any Rights under the Company Rights  Agreement,  (y) enable or
         require the Rights to separate from the shares of Company  Common Stock
         to which they are attached or to be triggered or become exercisable, or
         (z)  otherwise  result in the  occurrence of a  "Distribution  Date" or
         "Shares  Acquisition  Date" (as such terms are  defined in the  Company
         Rights Agreement).

         7. Representations and Warranties of Grantee. Grantee hereby represents
and warrants to Issuer that:

                  (a) Grantee is a corporation duly organized, validly existing,
         and in good  standing  under the laws of the State of Minnesota and has
         all requisite  corporate  power and authority to enter into and perform
         this Agreement.

                  (b) The  execution  and delivery of this  Agreement by Grantee
         and the consummation of the transactions  contemplated hereby have been
         duly and validly  authorized by the Board of Directors of Grantee,  and
         no other corporate  proceedings on the part of Grantee are necessary to
         authorize this Agreement or to consummate the transactions contemplated
         hereby. This Agreement has been duly and validly executed

                                     - 8 -

<PAGE>


         and  delivered by Grantee and,  assuming  this  Agreement has been duly
         executed  and  delivered  by Issuer,  constitutes  a valid and  binding
         obligation of Grantee  enforceable  against  Grantee in accordance with
         its  terms,   subject  to   bankruptcy,   insolvency,   reorganization,
         moratorium,  or other similar laws  affecting or relating to creditors'
         rights  generally;  the  availability  of  injunctive  relief and other
         equitable  remedies;  and limitations imposed by law on indemnification
         for liability under federal securities laws.

                  (c)  Grantee or its  designee is  acquiring  the Option and it
         will acquire the Option Shares  issuable upon the exercise  thereof for
         its own  account  and not  with a view to the  distribution  or  resale
         thereof in any manner not in accordance with applicable law.

         8.  Covenants of Grantee.  Grantee  agrees not to transfer or otherwise
dispose of the Option or the Option Shares, or any interest  therein,  except in
compliance with the 1933 Act and any applicable  state  securities law.  Grantee
further  agrees to the  placement of the  following  legend on the  certificates
representing  the  Option  Shares (in  addition  to any  legend  required  under
applicable state securities laws):

                  "THE  SHARES  REPRESENTED  BY THIS  CERTIFICATE  HAVE NOT BEEN
                  REGISTERED  UNDER EITHER (1) THE  SECURITIES  ACT OF 1933,  AS
                  AMENDED (THE "ACT"), OR (2) ANY APPLICABLE STATE LAW GOVERNING
                  THE  OFFER  AND  SALE OF  SECURITIES.  NO  TRANSFER  OR  OTHER
                  DISPOSITION OF THESE SHARES, OR OF ANY INTEREST  THEREIN,  MAY
                  BE MADE EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
                  UNDER  THE ACT AND  SUCH  OTHER  STATE  LAWS  OR  PURSUANT  TO
                  EXEMPTIONS FROM  REGISTRATION  UNDER THE ACT, SUCH OTHER STATE
                  LAWS, AND THE RULES AND REGULATIONS PROMULGATED THEREUNDER."

         9. Commercially  Reasonable Efforts.  Grantee and Issuer shall take, or
cause to be taken,  all  reasonable  action to consummate and make effective the
transactions  contemplated by this  Agreement,  including,  without  limitation,
commercially  reasonable  efforts  to obtain  any  necessary  consents  of third
parties and governmental  agencies  (including,  without limitation,  compliance
with any Nasdaq approvals or requirements)  and the filing by Grantee and Issuer
promptly  after the date hereof of any required HSR Act  notification  forms and
the documents required to comply with the HSR Act.

         10. Certain Conditions. The obligation of Issuer to issue Option Shares
at a Closing under this Agreement  after exercise of the Option shall be subject
to the satisfaction or waiver of the following conditions:

                  (a) any waiting  periods  applicable to the acquisition of the
         Option Shares by Grantee  pursuant to this Agreement  under the HSR Act
         shall have expired or been terminated;

                                     - 9 -

<PAGE>


                  (b) the  representations  and  warranties  of Grantee  made in
         Section 6 of this  Agreement  shall be true and correct in all material
         respects as of the date of the Closing for the  issuance of such Option
         Shares;

                  (c) no order,  decree,  or injunction  entered by any court of
         competent jurisdiction or governmental,  regulatory,  or administrative
         agency or  commission  in the  United  States  shall be in effect  that
         prohibits  the exercise of the option or  acquisition  of Option Shares
         pursuant to this Agreement; and

                  (d) compliance with any Nasdaq approvals or requirements.

         11.  Adjustments  Upon Changes in  Capitalization.  In the event of any
change in the number of issued and outstanding  shares of Issuer Common Stock by
reason of any stock  dividend,  stock split,  recapitalization,  merger,  rights
offering,  share exchange, or other change in the corporate or capital structure
of Issuer,  Grantee shall  receive,  upon  exercise of the Option,  the stock or
other securities, cash, or property to which Grantee would have been entitled if
Grantee  had  exercised  the Option and had been a holder of record of shares of
Issuer  Common  Stock on the record date fixed for  determination  of holders of
shares  of  Issuer  Common  Stock  entitled  to  receive  such  stock  or  other
securities,  cash,  or property  at the same  aggregate  price as the  aggregate
Option Price of the Option Shares.

         12.  Expiration.  The  Option  shall  expire at the  earlier of (a) the
Effective  Time (as  defined  in the Merger  Agreement),  (b) one year after the
termination of the Merger  Agreement in accordance with the terms thereof in the
event Section 7.2(a)(i) of the Merger Agreement  applies,  or one year after the
event specified in Section  7.2(a)(ii)(D)  of the Merger Agreement occurs in the
event  such  Section  7.2(a)(ii)  applies,  or (c)  termination  of  the  Merger
Agreement in accordance with the terms thereof in circumstances  under which the
fee specified in Section 7.2 thereof cannot in any circumstances  become payable
(such expiration date is referred to as the "Expiration Date").

         13.      General Provisions.

                  (a)  Survival.  All of the  representations,  warranties,  and
         covenants  contained  herein  shall  survive  each Closing and shall be
         deemed to have been  made as of the date  hereof  and as of the date of
         each Closing.

                  (b) Further  Assurances.  If Grantee  exercises the Option, or
         any portion  thereof,  in accordance  with the terms of this Agreement,
         Issuer and Grantee will execute and deliver all such further  documents
         and instruments  and use  commercially  reasonable  efforts to take all
         such  further  action as may be necessary  in order to  consummate  the
         transactions contemplated thereby.

                  (c)  Severability.  It is the desire and intent of the parties
         that the provisions of this Agreement be enforced to the fullest extent
         permissible   under  the  law  and  public  policies  applied  in  each
         jurisdiction in which enforcement is sought.  Accordingly, in the

                                     - 10 -

<PAGE>


         event  that  any  provision  of  this  Agreement  would  be held in any
         jurisdiction  to be  invalid,  prohibited,  or  unenforceable  for  any
         reason, such provision, as to such jurisdiction,  shall be ineffective,
         without  invalidating  the remaining  provisions  of this  Agreement or
         affecting the validity or enforceability of such provision in any other
         jurisdiction. Notwithstanding the foregoing, if such provision could be
         more narrowly drawn so as not be invalid,  prohibited, or unenforceable
         in such jurisdiction, it shall, as to such jurisdiction, be so narrowly
         drawn,  without invalidating the remaining provisions of this Agreement
         or affecting the validity or  enforceability  of such  provision in any
         other jurisdiction.

                  (d)  Assignment.  This Agreement shall be binding on and inure
         to the benefit of the parties  hereto and their  respective  successors
         and assigns;  provided,  however,  that Issuer shall not be entitled to
         assign  or  otherwise   transfer  any  of  its  rights  or  obligations
         hereunder,  and Grantee  shall not be  entitled to assign or  otherwise
         transfer the Option or any of its rights or obligations hereunder.

                  (e) Specific  Performance.  The parties agree and  acknowledge
         that in the event of a breach of any provision of this  Agreement,  the
         aggrieved party would be without an adequate remedy at law. The parties
         therefore  agree that in the event of a breach of any provision of this
         Agreement,  the  aggrieved  party may elect to institute  and prosecute
         proceedings in any court of competent  jurisdiction to enforce specific
         performance or to enjoin the continuing  breach of such  provision,  as
         well as to obtain damages for breach of this  Agreement.  By seeking or
         obtaining any such relief,  the  aggrieved  party will not be precluded
         from seeking or obtaining any other relief to which it may be entitled.

                  (f) Amendments.  This Agreement may not be modified,  amended,
         altered,  or  supplemented  except upon the execution and delivery of a
         written agreement executed by Grantee and Issuer.

                  (g) Notices. All notices, requests, claims, demands, and other
         communications  hereunder shall be in writing and shall be deemed to be
         sufficient  if  contained in a written  instrument  and shall be deemed
         given    if    delivered     personally,     telecopied,     sent    by
         nationally-recognized  overnight  courier  or mailed by  registered  or
         certified mail (return  receipt  requested),  postage  prepaid,  to the
         other party at the  following  addresses  (or such other  address for a
         party as shall be specified by like notice):

                  If to Grantee:

                           Medtronic, Inc.
                           7000 Central Avenue N.E.
                           Minneapolis, NN 55432
                           with separate copies thereof addressed to

                           Attention: General Counsel

                                     - 11 -

<PAGE>


                                      FAX:  (612) 572-5459
                           and

                           Attention: Vice President and Chief Development
                                      Officer
                                      FAX: (612) 572-5404

                  If to Issuer:

                           Arterial Vascular Engineering, Inc.
                           3576 Unocal Place
                           Santa Rosa, CA 95403
                           FAX:  (707) 541-3190
                           Attention:  General Counsel

                           with a copy to:

                           Cooley Godward LLP
                           Five Palo Alto Square
                           3000 El Camino Real
                           Palo Alto, CA 94306-2155
                           FAX: (650) 857-0663
                           Attention: Craig E. Dauchy, Esq. and
                                      Richard E. Climan, Esq.

                  (h) Headings. The headings contained in this Agreement are for
         reference  purposes only and shall not affect in any way the meaning or
         interpretation of this Agreement.

                  (i)  Counterparts.  This  Agreement  may be executed in one or
         more counterparts, each of which shall be an original, but all of which
         together shall constitute one and the same agreement.

                  (j)  Governing  Law. This  Agreement  shall be governed by and
         construed  in  accordance  with  the  laws  of the  State  of  Delaware
         applicable to contracts made and to be performed therein.

                  (k) Entire  Agreement.  This  Agreement,  the  Confidentiality
         Agreement,  and the Merger  Agreement and any documents and instruments
         referred to herein and therein  constitute the entire agreement between
         the parties  hereto and  thereto  with  respect to the  subject  matter
         hereof  and  thereof  and  supersede  all other  prior  agreements  and
         understandings, both written and oral, between the parties with respect
         to the subject  matter  hereof and  thereof.  This  Agreement  shall be
         binding  upon,  inure to the  benefit  of,  and be  enforceable  by the
         successors and permitted assigns of the parties hereto. Nothing in this
         Agreement  shall be construed to give any person other than the parties
         to this

                                     - 12 -

<PAGE>


         Agreement or their respective successors or permitted assigns any legal
         or  equitable  right,  remedy,  or claim  under or in  respect  of this
         Agreement or any provision contained herein.

                  (l) Expenses.  Except as otherwise  provided in this Agreement
         or the Merger Agreement, each party shall pay its own expenses incurred
         in connection with this Agreement.

                                     - 13 -

<PAGE>


         IN WITNESS WHEREOF, the parties have caused this Stock Option Agreement
to be signed by their  respective  officers  thereunto duly authorized as of the
date first written above.


                                        MEDTRONIC, INC.


                                        By: ____________________________________
                                        Its: ___________________________________


                                        ARTERIAL VASCULAR ENGINEERING, INC.


                                        By: ____________________________________
                                        Its: ___________________________________

                                     - 14 -



Medtronic and Arterial  Vascular  Engineering  to Merge,  Forming  World-Leading
Franchise in Interventional Cardiology

MINNEAPOLIS,  MN AND SANTA  ROSA,  CA,  November  30,  1998 --  Medtronic,  Inc.
(NYSE:MDT)  and Arterial  Vascular  Engineering,  Inc.  (AVE)  (Nasdaq  National
Market:AVEI)  today  announced  that they will merge to form one of the  world's
leading  interventional  cardiology  franchises in a transaction  valued at $3.7
billion.  AVE's strong  position in  interventional  cardiology  will complement
Medtronic's  market-leading positions in the cardiac rhythm management,  cardiac
surgery, and neurological and spinal surgery fields.

The agreement calls for Medtronic to exchange $54.00 in Medtronic stock for each
share of AVE stock,  in a pooling of  interests  transaction.  The  agreement is
subject to certain collar provisions and customary closing conditions.

"We are extremely pleased to be merging with AVE, as it provides the opportunity
we have  been  seeking  to move  into a  leadership  role in the  interventional
field,"  said  William  W.  George,  chairman  and chief  executive  officer  of
Medtronic.  "During the past  several  years,  under the  direction of CEO Scott
Solano, AVE has built itself into the world's leading cardiac stent company. The
company's recent acquisition of the USCI  interventional  cardiology business of
C.R. Bard and its pending  merger with World Medical  Manufacturing  Corporation
have   broadened   AVE's  product   lines.   When   combined  with   Medtronic's
interventional  business,  AVE  will  give  us  a  broad  array  of  outstanding
interventional  products,  one of the  strongest  development  pipelines  in the
industry,  and  a  very  deep  intellectual  property  portfolio.  The  combined
Medtronic  AVE vascular  business will generate more than $1 billion in revenues
next fiscal year, with tremendous growth potential over the next ten years."

Scott Solano,  AVE chairman and chief  executive  officer said, "The merger with
Medtronic will substantially  enhance our position in the interventional  field.
Medtronic has developed its own portfolio of some very  competitive  balloon and
guide catheter technology,  as well as an excellent endovascular stent graft. In
addition,  they  have  developed  and  licensed  a broad  intellectual  property
portfolio  which,  combined  with  our own,  will  give us an  extensive  patent
foundation moving forward."

Solano added,  "By combining the  technology,  service and dedication of the two
companies,  we  will be able to meet  all the  needs  of the  physicians  in the
catheterization  lab. AVE is  well-positioned  for future  growth with a rapidly
escalating R&D budget and a strong culture of innovation."

AVE designs and manufactures  minimally  invasive solutions for the treatment of
coronary  artery and peripheral  vascular  disease and is the global  technology
leader in  coronary  stents.  Its product  offerings  include  coronary  stents,
balloon catheters,  guidewires and guiding  catheters.  Founded in 1991, AVE has
about 4,000 employees.

Solano  will  report  directly  to  Medtronic's  President  and Chief  Operating
Officer, Art Collins,  and will assume  responsibility for the combined vascular
businesses  of  Medtronic  and AVE,  headquartered  in Santa  Rosa,  Calif.  "In
addition, the vascular field sales and service forces of the

                                       1.

<PAGE>


two  companies  will be merged  into a single  unit in each  geography,  and the
operations and facilities  will be  streamlined to gain  additional  synergy and
operational efficiency," Collins said.

For Medtronic, AVE is the fifth major transaction announced since July 1998, all
in its core cardiovascular and neurological and spinal surgery  businesses.  Its
total investment in these mergers is $8 billion. The others include:

         o        Sofamor Danek Group, Inc., Memphis, TN Spinal and neurological
                  surgery

         o        Physio-Control   International  Corp.,  Redmond,  WA  External
                  defibrillators

         o        Avecor  Cardiovascular Inc.,  Minneapolis,  MN Cardiac surgery
                  products

         o        Midas Rex, L.P., Ft. Worth, TX Neurological surgery

"These five mergers transform  Medtronic into a truly unique  corporation in the
medical technology field, with anticipated  revenues exceeding $5 billion in our
next fiscal year,  almost double our FY98 size," said George "When combined with
the  breakthrough  new  products  we  have  developed  internally,  such  as the
Gem(TM) DR dual chamber defibrillator and the  Medtronic.Kappa(TM) 700 series of
adaptive pacemakers,  these mergers put Medtronic in a position of global market
leadership in medical  technologies used to treat all aspects of cardiac disease
as well as those used in neurological  and spinal surgery.  As a result of these
mergers,  Medtronic can now offer our hospital and physician  customers superior
products providing a wide array of cardiovascular and neurological therapies."

Medtronic said that, aside from transaction-related  charges, the merger will be
significantly  accretive to earnings this year and in future years.  The company
said it will reinvest a significant portion of the incremental earnings into R&D
and market  development to accelerate future growth of all of its product lines.
The company  expects to spend more than $500 million on R&D in its coming fiscal
year.

The $54 per share  merger  price stated  above  applies if  Medtronic's  average
common  stock price for the 15 NYSE  trading  days ending on and  including  the
second NYSE trading day preceding the AVE shareholders' meeting on the merger is
between $61.20 and $74.80 per share. If such average is within this range,  then
each AVE share will be exchanged  for  Medtronic  shares with a value of $54. If
such average Medtronic stock price is equal to or greater than $74.80, then each
AVE share will be exchanged for 0.72193 Medtronic shares,  and if it is equal to
or less than $61.20, then each AVE share will be exchanged for 0.88235 Medtronic
shares.

The  transaction  is subject to  customary  conditions,  including  approval  by
shareholders of AVE and  Hart-Scott-Rodino  clearance.  The companies  expect to
complete the transaction in 90 to 120 days.

Medtronic,  Inc., headquartered  in Minneapolis,  is the world's leading medical
technology company specializing in implantable and interventional therapies. Its
Internet address is www.medtronic.com.

Any  statement  made  about the  company's  anticipated  financial  results  are
forward-looking  statements  subject  to risks and  uncertainties  such as those
described in the  company's  Annual  Report on Form 10K for the year ended April
30, 1998. Actual results may differ materially from anticipated results.

                                       2.



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