SOFAMOR DANEK GROUP INC
8-K, 1998-11-09
ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES
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<PAGE>   1
                       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 1, 1998



                            Sofamor Danek Group, Inc.
              ---------------------------------------------------- 
             (Exact name of Registrant as specified in its charter)



Indiana                              000-19168                  35-1580052   
- --------------------------------------------------------------------------------
(State or other                     (Commission                (IRS Employer
jurisdiction of                     File Number)             Identification No.)
incorporation)



1800 Pyramid Place, Memphis, Tennessee                            38132   
- ---------------------------------------                          --------
(Address of principal executive offices)                        (Zip Code)


                                 (901) 396-2695
               --------------------------------------------------
               Registrant's telephone number, including area code


                                 Not Applicable
          ------------------------------------------------------------ 
         (Former name or former address, if changed since last report.)



<PAGE>   2



Item 5.  Other Events.

                  On November 1, 1998, Sofamor Danek Group, Inc. (the "Company")
entered into an Agreement and Plan of Merger (the "Merger Agreement") with
Medtronic, Inc., a Minnesota corporation ("Parent"), and MSD Merger Corp., an
Indiana 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, no par value, 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 shareholders 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 $56.97 and less than $69.63, then the
                  Conversion Ratio shall equal $115 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 $56.97, then the Conversion Ratio
                  shall equal 2.01861; or
         (iii)    if the Parent Average Stock Price for the Determination Period
                  is equal to or greater than $69.63, then the Conversion Ratio
                  shall equal 1.65159.

                  The Merger is subject to approval by the shareholders of the
Company, regulatory approvals and other customary closing conditions.

                  Also on November 1, 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 up to 5,366,478 shares of
Company Common Stock at a price of $115 per share upon the occurrence of certain
events related to termination of the Merger Agreement.





                                       2
<PAGE>   3

                 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 2, 1998 is attached hereto as Exhibit 99.1 and is hereby
incorporated by reference herein.


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 1, 1998, by
                        and among Medtronic, Inc., MSD Merger Corp. and Sofamor 
                        Danek Group, Inc.

                  2.2   Stock Option Agreement, dated November 1, 1998, by and 
                        between Medtronic, Inc. and Sofamor Danek Group, Inc.

                  99.1  Press Release dated November 2, 1998.





                                       3
<PAGE>   4

                                   SIGNATURES

         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.


                                 SOFAMOR DANEK GROUP, INC.


                                 By:      Stephen S. Phillips
                                       ---------------------------------------
                                          Stephen S. Phillips
                                          Executive Vice President and General
                                          Counsel


Dated: November 5, 1998




<PAGE>   5



                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
Exhibit No.                              Description
- -----------                              -----------
<S>                 <C>
2.1                 Agreement and Plan of Merger, dated November 1, 1998, 
                    by and among Medtronic, Inc., MSD Merger Corp. and 
                    Sofamor Danek Group, Inc.

2.2                 Stock Option Agreement, dated November 1, 1998, by
                    and between Medtronic, Inc. and Sofamor Danek Group, Inc.

99.1                Press Release dated November 2, 1998.
</TABLE>







<PAGE>   1




                                                                     Exhibit 2.1


              Agreement and Plan of Merger, dated November 1, 1998,
  by and among Medtronic, Inc., MSD Merger Corp. and Sofamor Danek Group, Inc.





<PAGE>   2











                          AGREEMENT AND PLAN OF MERGER

                                  BY AND AMONG

                                MEDTRONIC, INC.,

                                MSD MERGER CORP.,

                                       AND

                            SOFAMOR DANEK GROUP, INC.











                                November 1, 1998





<PAGE>   3



                                TABLE OF CONTENTS



<TABLE>
<S>                                                                                     <C>     
ARTICLE 1 THE MERGER; CONVERSION OF SHARES................................................1
         1.1 The Merger...................................................................1
         1.2 Effective Time...............................................................2
         1.3 Conversion of Shares.........................................................2
         1.4 No Dissenters' Rights........................................................3
         1.5 Exchange of Company Common Stock.............................................3
         1.6 Exchange of Merger Subsidiary Common Stock...................................6
         1.7 Stock Options................................................................6
         1.8 Capitalization Changes.......................................................7
         1.9 Articles of Incorporation of the Surviving Corporation.......................7
         1.10 Bylaws of the Surviving Corporation.........................................8
         1.11 Directors and Officers of the Surviving Corporation.........................8


ARTICLE 2 CLOSING.........................................................................8
         2.1 Time and Place...............................................................8
         2.2 Filings at the Closing.......................................................8


ARTICLE 3 REPRESENTATIONS AND WARRANTIES OF THE COMPANY...................................8
         3.1 Organization.................................................................9
         3.2 Authorization................................................................9
         3.3 Capitalization..............................................................10
         3.4 Reports and Financial Statements............................................11
         3.5 Absence of Undisclosed Liabilities..........................................11
         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..........................................13
         3.11 Taxes......................................................................14
         3.12 Contracts..................................................................15
         3.13 Intellectual Property Rights...............................................15
         3.14 Benefit Plans..............................................................16
         3.15 Minute Books...............................................................17
         3.16 No Finders.................................................................17
         3.17 Proxy Statement............................................................18
         3.18 Fairness Opinion...........................................................18
         3.19 State Takeover Laws........................................................18


ARTICLE 4 REPRESENTATIONS AND WARRANTIES OF PARENT AND
         MERGER SUBSIDIARY...............................................................19
         4.1 Organization................................................................19
         4.2 Authorization...............................................................19
</TABLE>



                                        i


<PAGE>   4


<TABLE>
<S>                                                                                     <C>
         4.3 Capitalization..............................................................20
         4.4 Consents and Approvals......................................................20
         4.5 Reports; Financial Statements; Absence of Changes...........................21
         4.6 Registration Statement......................................................21
         4.7 No Finders..................................................................22
         4.8 Absence of Undisclosed Liabilities..........................................22
         4.9 Compliance with Laws........................................................22
         4.10 Litigation.................................................................22
         4.11 Absence of Material Adverse Changes........................................22
         4.12 Reorganization.............................................................23


ARTICLE 5 COVENANTS......................................................................23
         5.1 Conduct of Business of the Company..........................................23
         5.2 Conduct of Business of Parent...............................................26
         5.3 No Solicitation.............................................................27
         5.4 Access and Information......................................................28
         5.5 Approval of Shareholders; Proxy Statement; Registration Statement...........28
         5.6 Consents....................................................................30
         5.7 Affiliates' Letters.........................................................31
         5.8 Expenses....................................................................31
         5.9 Further Actions.............................................................31
         5.10 Regulatory Approvals.......................................................32
         5.11 Certain Notifications......................................................32
         5.12 Voting of Shares...........................................................33
         5.13 Stock Option Agreement.....................................................33
         5.14 NYSE Listing Application...................................................33
         5.15 Indemnification............................................................33
         5.16 Letters of the Company's and Parent's Accountants..........................34
         5.17 Subsidiary Shares..........................................................35
         5.18 Benefit Plans and Employee Matters.........................................35
         5.19 Obligations of Merger Subsidiary...........................................36
         5.20 Plan of Reorganization.....................................................36
         5.21 Pooling....................................................................36


ARTICLE 6 CLOSING CONDITIONS.............................................................36
         6.1 Conditions to Obligations of Parent, Merger Subsidiary, and the Company.....36
         6.2 Conditions to Obligations of Parent and Merger Subsidiary...................37
         6.3 Conditions to Obligations of the Company....................................38


ARTICLE 7 TERMINATION AND ABANDONMENT....................................................39
         7.1 Termination.................................................................39
         7.2 Effect of Termination.......................................................41


ARTICLE 8 MISCELLANEOUS..................................................................43
         8.1 Amendment and Modification..................................................43
         8.2 Waiver of Compliance; Consents..............................................43
         8.3 Investigation; Survival of Representations and Warranties...................43
</TABLE>



                                       ii


<PAGE>   5


<TABLE>
<S>                                                                                     <C>
         8.4 Notices.....................................................................44
         8.5 Assignment..................................................................44
         8.6 Governing Law...............................................................45
         8.7 Counterparts................................................................45
         8.8 Knowledge...................................................................45
         8.9 Interpretation..............................................................45
         8.10 Publicity..................................................................45
         8.11 Entire Agreement...........................................................45
         8.12 Severability...............................................................46
         8.13 Specific Performance.......................................................46
         8.14 Section 3.1 of Company Disclosure Schedule.................................46
</TABLE>




         EXHIBITS:

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





                                       iii


<PAGE>   6



                          AGREEMENT AND PLAN OF MERGER

         THIS AGREEMENT is dated as of November 1, 1998, by and among Medtronic,
Inc., a Minnesota corporation ("Parent"), MSD Merger Corp., an Indiana
corporation and wholly-owned subsidiary of Parent ("Merger Subsidiary"), and
Sofamor Danek Group, Inc., an Indiana 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 Indiana Business Corporation Law (the "IBCL"), 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 IBCL.




                                        1


<PAGE>   7



         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 and Merger Subsidiary will file, or cause
to be filed, with the Secretary of State of the State of Indiana Articles of
Merger for the Merger, which Articles shall be in the form required by and
executed in accordance with the applicable provisions of the IBCL and shall
include as a part thereof a plan of merger (the "Plan of Merger") substantially
in the form attached hereto as EXHIBIT A. 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 Articles 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, no par value
         ("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
         Shareholders 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 $56.97 and less
                           than $69.63, then the Conversion Ratio shall equal
                           $115 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 $56.97,
                           then the Conversion Ratio shall equal 2.01861; or

                  (iii)    if the Parent Average Stock Price for the
                           Determination Period is equal to or greater than
                           $69.63, then the Conversion Ratio shall equal
                           1.65159.

                  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 kind of shares or securities through
         a reorganization, reclassification, stock dividend, stock combination,
         or



                                        2


<PAGE>   8



         other like change in the Company's capitalization. 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, stock dividend,
         stock combination, or other like change in capitalization.

                  (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 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 Dissenters' Rights. The parties acknowledge that, pursuant 
to Section 23-1-44-8 of the IBCL, no holders of Company Common Stock shall have
dissenter's 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 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



                                        3


<PAGE>   9



         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.

                  (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 shares of Parent Common Stock issued upon the
         surrender for exchange of Company Common Stock in accordance with the
         terms hereof (including 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 such shares of Company Common
         Stock.

                  (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 shareholders of the Company, except such rights, if
         any, as they may have pursuant to the IBCL 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



                                        4


<PAGE>   10



         only the right to receive 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 upon the surrender for exchange of Company
         Certificates, 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 Parent Average Stock Price 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 exchange
         for 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 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) Each person entitled to receive shares of Parent Common
         Stock pursuant to this Article 1 shall receive together with such
         shares the number of Parent preferred share purchase rights (pursuant
         to the Rights Agreement dated as of June 27, 1991, between Parent and
         Norwest Bank Minnesota, N.A., the "Parent Rights Plan") per share of
         Parent Common Stock equal to 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



                                        5


<PAGE>   11



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 (b) below with respect to the
         Company's Employee Stock Purchase Plan, 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, by virtue of the Merger and 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. Prior to the Effective Time, the
         Company's Board of Directors and Compensation Committee thereof shall
         adopt resolutions preventing the value of any outstanding Company
         Options, stock appreciation rights, restricted stock, performance units
         or other stock based awards from being paid in cash to the holders
         thereof. 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, and if and to the
         extent caused by and in accordance with the current terms of a Company
         Option, such Company Option shall vest fully as of the date on which
         the Merger is approved by the Company's shareholders) except that (i)
         such Company Options shall entitle the holder to 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, and (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. Prior to the Effective Time, the Board of Directors of the
         Parent shall, for purposes of Rule 16b-3(d)(1) promulgated under
         Section 16 of 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 shareholders of the
         Company subject to Section 16 of the 1934 Act. 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), Parent shall file a



                                        6


<PAGE>   12



         registration statement on Form S-8 (or any successor form) with respect
         to such shares of Parent Common Stock and shall use its best 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 all 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.

                  (b) The current phase in process as of the date of this
         Agreement under the Company's Employee Stock Purchase Plan shall
         continue and shares shall be issued to participants thereunder as
         provided under, and subject to the terms and conditions of, such Plan;
         provided, however, that if the Effective Time occurs prior to the
         originally scheduled expiration of such current phase, then immediately
         prior to the Effective Time, the current phase under the Company's
         Employee Stock Purchase Plan shall be ended, 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 phase end, the number of whole shares of Company Common Stock at a
         per share price determined pursuant to the provisions of the Company's
         Employee Stock Purchase Plan, 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,
         for each share of Company Common Stock such participant has so
         purchased under the Employee Stock Purchase Plan, such number of shares
         of Parent Common Stock equal to the Conversion Ratio. No phases under
         the Company's Employee Stock Purchase Plan that are subsequent to the
         phase in process as of the date of this Agreement shall be commenced,
         and, the Company's Employee Stock Purchase Plan 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 a different number of shares or a different class by reason of
any reclassification, subdivision, recapitalization, split-up, combination,
exchange of shares, or stock dividend, the Conversion Ratio and all per-share
price amounts and calculations set forth in this Agreement shall be
appropriately adjusted to reflect such reclassification, subdivision,
recapitalization, split-up, combination, exchange of shares or stock dividend.

         1.9 Articles of Incorporation of the Surviving Corporation. The
Articles of Incorporation of the Company, as in effect immediately prior to the
Effective Time, shall be amended and restated in their entity to read as set
forth on EXHIBIT A-1 attached to the Plan of Merger.




                                        7


<PAGE>   13



         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 day the Merger is approved by the
shareholders of the Company at the Company Shareholders Meeting (as defined in
Section 5.5 hereof), or as soon 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 Articles of
Merger to be filed in accordance with the provisions of Section 23-1-40-5 of the
IBCL, 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, referring specifically to the representations
and warranties in this Agreement which identifies by section number to which
such disclosure relates (the "Company Disclosure Schedule") or (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
December 30, 1997 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 to the extent the relevancy of such disclosure to such particular
representation and warranty is readily apparent, the Company hereby makes the
following representations and warranties to Parent and Merger Subsidiary:



                                        8


<PAGE>   14



         3.1 Organization. The Company and each subsidiary of the Company
(referred to herein as a "Subsidiary") is a corporation duly organized, validly
existing, and in good standing under the laws of its respective jurisdiction of
incorporation 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 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, individually or
in the aggregate with other effects, 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; or (ii) to the Company's ability to perform any of its
material obligations under this Agreement or to consummate the Merger, except in
each case as provided in Section 3.1 of the Company Disclosure Schedule but
subject to Section 8.14 hereof and 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 hereof, (ii) any occurrence
or condition affecting the medical device industry generally, or (iii) any
changes in general economic, regulatory or political conditions. 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
Articles 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 a less-than-100%
interest. Neither the Company nor any Subsidiary, directly or indirectly, owns
or controls or has any equity, partnership, or other 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 shareholders, 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 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 or any
Subsidiary are necessary to authorize this Agreement, and, subject to obtaining
the approval of the Company's shareholders, no other corporate action on the
part of the Company or any Subsidiary is necessary to consummate the
transactions contemplated hereby. 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



                                        9


<PAGE>   15



the Company in accordance with its terms, 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.

         3.3 Capitalization. As of the date hereof, the authorized capital stock
of the Company consists of (i) 150,000,000 shares of Company Common Stock, no
par value, of which 26,967,228 shares are issued and outstanding and 4,023,180
shares are held in the Company's treasury, and (ii) 5,000,000 shares of Company
Preferred Stock, no par value, none of which are 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"). 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
options to purchase an aggregate of 5,473,619 shares of Company Common Stock
granted pursuant to the Company's 1993 Long-Term Incentive Plan, Non-Qualified
Stock Option Plan, Non-Employee Director's Stock Option Plan, Incentive Stock
Option Plan, Non-Qualified Stock Option Plan for Distributors and Consultants
and the Option Agreement dated July 8, 1992 between the Company and George Bryan
(collectively, the "Company Option Plans") listed, together with their
respective exercise prices, in the Company Disclosure Schedule, and except for
the rights to purchase under the Company's Employee Stock Purchase Plan shares
of Company Common Stock (estimated to be approximately 3,000 shares with respect
to the quarterly phases commenced July 1 and October 1, 1998, at per share
prices equal to the market prices on the last day of the respective quarterly
phase thereof based on the current contribution rates of the participants and
assuming the current Plan phase in process as of the date of this Agreement is
ended on December 31, 1998 for this purpose), as of the date of this Agreement
there are 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
is a party that, directly or indirectly, (i) obligate 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, (ii) call for or relate to the sale, pledge,
transfer, or other disposition or encumbrance by the Company or any Subsidiary
of any shares of its capital stock, or (iii) to the knowledge of the Company,
relate 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, 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 Option Plans or the
Company's Employee Stock Purchase Plan 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 Option Plans or Employee Stock Purchase Plan to allow for the
treatment of Company Options and the Employee Stock Purchase Plan as is provided
in Section 1.7, has been, or prior to the Closing will be, validly taken by the
Company, and the Company will not from and after the date hereof allow any
increase in the rate of a participant's contributions to the Employee Stock
Purchase Plan or



                                       10


<PAGE>   16



any enrollments (other than new hires, if required by such Plan) or
re-enrollments in such Plan (other than re-enrollments without any increases in
historical contribution rates, if permitted by such Plan).

         3.4 Reports and Financial Statements. The Company has filed all forms,
reports, registration statements, and 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 Securities
Exchange Act of 1934 and the rules and regulations thereunder (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 and unaudited
interim 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 December 31, 1997 (the "Company
1997 Financials"), (i) were prepared in accordance with generally accepted
accounting principles applied on a consistent basis during the periods involved
(except as may be indicated therein or in the notes thereto or, in the case of
unaudited statements, as permitted by Form 10-Q of the SEC), (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 as of the dates thereof and the income, cash
flows, and changes in shareholders' equity for the periods involved (subject, in
the case of unaudited statements, to normal and recurring year-end adjustments
which were not and are not expected, individually or in the aggregate, to have a
Company Material Adverse Effect). The statements of earnings 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 GAAP, 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)
except (a) liabilities or obligations that are accrued or reserved against in
the audited consolidated balance sheet of the Company as of December 31, 1997
contained in the Company 1997 Financials (the "Company Audited Balance Sheet")
or in the unaudited consolidated balance sheet of the Company as of June 30,
1998 contained in the Company's Quarterly Report on Form 10-Q for the fiscal
quarter ended June 30, 1998 (the "Company Interim Balance Sheet") or referred to
in the notes thereto, and (b) liabilities or obligations that could not
reasonably be expected to have a Company Material Adverse Effect.




                                       11


<PAGE>   17



         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) approval by the Company's shareholders, (iii) the
filing and recordation of appropriate merger documents as required by the IBCL,
and (iv) compliance with Chapter 44 (Sections 23-1-44-1 et. seq.) of the IBCL,
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 Articles of Incorporation or Bylaws
of the Company or any Subsidiary; (b) violate any 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") 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 with or permit, consent, or approval
of any federal, state, local, or foreign governmental or regulatory body or
authority (including, but not limited to, the FDA 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
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. None of the matters described in Section 3.6 of the
Company Disclosure Schedule could 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, or to have a Company Material Adverse
Effect.



                                       12


<PAGE>   18



         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 entity (including, but not
limited to, those of the FDA or 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 has 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 federal, state, local, or foreign governmental authorities 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. There are no claims, actions, suits, proceedings or, to
the knowledge of the Company, investigations or 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, except
for such claims, actions, suits, proceedings, investigations or reviews that
could not reasonably be expected to have a Company Material Adverse Effect.

         3.9 Absence of Material Adverse Changes. Since December 31, 1997 there
has not been any (a) Company Material Adverse Effect; (b) damage, destruction,
or loss, 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.

         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
the name and current annual salary rate of each 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
preceding 12-month period; and (ii) the names of the officers (with all
positions and titles indicated) and directors of the Company. Except as could
not reasonably by



                                       13


<PAGE>   19



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, 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 (iii) 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 Affect (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) 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. 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.




                                       14


<PAGE>   20



         3.12 Contracts. Neither the Company nor any Subsidiary is, nor, to the
knowledge of the Company, is any other party thereto, 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 restricts
the Company's, or after the Merger would restrict Parent's, ability to conduct
any line of business, (ii) which imposes on the Company material obligations
(including, without limitation, to pay milestone payments or 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.

         3.13 Intellectual Property Rights. The Company Disclosure Schedule
contains a complete and accurate list of all material patents, trademarks, trade
names, service marks, copyrights, and all applications for or registrations of
any of the foregoing as to which the Company or any Subsidiary is the owner or a
licensee (the "Company Intellectual Property"). The Company and each Subsidiary
owns, free and clear of any Lien (as defined in Section 3.3), or is licensed to
use, all patents, trademarks, trade names, service marks, copyrights,
applications for or registrations of any of the foregoing comprising the Company
Intellectual Property. No claim has been asserted or, to the knowledge of the
Company, threatened in writing by any person, with respect to the use of the
Company Intellectual Property or challenging or questioning the validity or
effectiveness of any license or agreement with respect thereto, 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 of the Company
Intellectual Property by the Company or any Subsidiary 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 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 has not been challenged in any judicial or administrative 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, within the past five years,
         sponsored, maintained, or contributed to or been



                                       15


<PAGE>   21



         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.

                  (b) Neither the Company nor any Subsidiary sponsors,
         maintains, contributes to, or has, within the past five years,
         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 IRS has issued favorable determination letters with
         respect to all Company and Subsidiary Pension Plans that are intended
         to be qualified under Section



                                       16


<PAGE>   22



         401(a) of the Code. The Company has provided to Parent summaries 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, its 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, its 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 Subsidiary or, to the extent reasonably available, its
         non-U.S. Subsidiaries with or relating to any of its employees which
         contain change in control provisions. With respect to any items that
         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 of, and performance 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 or may 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 proposed Treasury Regulation 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 shareholders, Boards of Directors, and committees of
the Boards 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



                                       17


<PAGE>   23



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 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, at the time of the Company Shareholders 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 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.

         3.18 Fairness Opinion. The Company has received an opinion from J.P.
Morgan Securities Inc. to the effect that, as of the date hereof, the
consideration to be paid to the holders of Company Common Stock is fair, from a
financial point of view, to such shareholders, and the Company will promptly
deliver a copy of such opinion to Parent.

         3.19 State Takeover Laws. The Board of Directors of the Company has
approved the transactions contemplated by this Agreement, such that, assuming
that, and Parent hereby represents to the Company that, Parent and Merger
Subsidiary are not "interested shareholders" (as such term is defined in IBCL
Section 23-1-43-10) prior to entering into this Agreement and the agreements
contemplated hereby, the Merger is not subject to the provisions of Chapter 43
(Sections 23-1-43-1 et. seq.) (entitled "Business Combinations") of the IBCL.
The Company and the Company Common Stock is not subject to Chapter 42 (Sections
23-1-42-1 et. seq.) (entitled "Control Share Acquisitions") of the IBCL.





                                       18


<PAGE>   24



                                    ARTICLE 4
                         REPRESENTATIONS AND WARRANTIES
                         OF PARENT AND MERGER SUBSIDIARY

         Except (i) as set forth in a document of even date herewith, referring
specifically to the representations and warranties in this Agreement which
identifies by section number to which such disclosure relates (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 with
the SEC filed by Parent after the date of filing such Form 10-K and prior to the
date hereof to the extent the relevancy of such disclosure to such particular
representation and warranty 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 Indiana. 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, individually or in the aggregate with other
effects, 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 hereof, (ii) any occurrence or condition
affecting the medical device industry 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 of the transactions contemplated hereby and thereby, have
been duly and validly authorized and approved by the Boards of Directors of
Parent and Merger



                                       19


<PAGE>   25



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. 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, 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 10,000,000 shares of Merger Subsidiary Common Stock, 1,000 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, (ii) the filing and recordation of appropriate merger
documents as required by the IBCL, and (iii) compliance with Chapter 44
(Sections 23-1-44-1 et. seq.) of the IBCL regarding dissenters' rights of the
Company's shareholders, 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 Articles of Incorporation or Bylaws of Parent or Merger Subsidiary; (b)
violate any 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 FDA 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 with or permit, consent, or approval
of any federal, state, local or foreign governmental or regulatory body or
authority (including, but not limited to, the FDA 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,



                                       20


<PAGE>   26



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 documents required to be filed
by it with the SEC since May 1, 1995 (such forms, reports, registration
statements and documents, together with any 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 and unaudited interim financial
statements included or incorporated by reference in the Parent SEC Filings (i)
were prepared in accordance with generally accepted accounting principles
applied on a consistent basis during the periods involved (except as may be
indicated therein or in the notes thereto or, in the case of unaudited
statements, as permitted by Form 10-Q of the SEC), (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 as of the dates thereof and the income, cash flows,
and changes in shareholders' equity for the periods involved, except as
otherwise noted therein (subject, in the case of unaudited statements, to normal
and recurring year-end adjustments which were not and are not expected,
individually or in the aggregate, to have a Parent Material Adverse Effect).

         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 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, at the time of the
Company Shareholders 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.




                                       21


<PAGE>   27



         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.

         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)
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, and (b)
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 entity (including, but not
limited to, those of the FDA or 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 federal, state, local or foreign
governmental authorities 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. There are no claims, actions, suits, proceedings, or,
to the knowledge of Parent, investigations or 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,
except for such claims, actions, suits, proceedings, investigations or reviews
that could not reasonably be expected to have a Parent Material Adverse Effect.

         4.11 Absence of Material Adverse Changes. Since April 30, 1998, 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 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.




                                       22


<PAGE>   28



         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.


                                    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 conduct
its respective operations, to the extent commercially reasonable, according to
its ordinary and usual course of business and consistent with past practice, and
the Company and each Subsidiary will use its 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 keep Parent reasonably advised on a
current basis as to the status of the matters described in Section 3.1 of the
Company Disclosure Schedule, and will not settle, resolve or compromise any of
such matters without reasonable prior notice to Parent and after giving due
consideration to Parent's recommendations with respect thereto. 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
Schedule, from the date of the 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 Articles of Incorporation or 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 the issuance of shares of Company Common
         Stock pursuant to the exercise of stock options outstanding on the date
         of this Agreement and, so long as



                                       23


<PAGE>   29



         treatment of the Merger as a pooling of interests is not jeopardized,
         the issuance, in the ordinary course of business and consistent with
         past practice, of stock options to purchase, at not less than fair
         market value on the date of grant of such option, a maximum of 50,000
         shares of Company Common Stock pursuant to the Company Option Plans in
         effect on the date of this Agreement and the shares of Company Common
         Stock issuable pursuant to such stock options);

                  (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; 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 material Lien on any
         material asset;

                  (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) or consistent with
         existing contractual commitments or as required by applicable law
         (other than accelerated payments customarily made upon termination of
         employment); (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 not required by any
         existing plan, agreement, or arrangement to any such director, officer,
         employee or consultant; 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;



                                       24


<PAGE>   30



                  (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 that, individually, is in excess of $1,000,000 or, in the
         aggregate, are in excess of $4,000,000;

                  (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);

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

                  (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;

                  (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 federal,
         state, local, foreign, or other governmental department, commission,
         board, bureau, agency, or instrumentality (including, but not limited
         to, the FDA or any nongovernmental self-regulatory agency);



                                       25


<PAGE>   31



                  (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; or

                  (p) 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 or agree
         to dispose, any assets of any other 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 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; or

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

         5.3      No Solicitation.  Neither the Company nor any Subsidiary, nor
any of their respective officers, directors, employees, representatives, agents,
or affiliates (including, but not



                                       26


<PAGE>   32



limited to any investment banker, attorney, or accountant retained by the
Company or any Subsidiary), shall, directly or indirectly, solicit, knowingly
encourage, initiate, or participate in any way in discussions or negotiations
with, or knowingly provide any information to, any corporation, partnership,
person, or other entity or group (other than Parent or any affiliate or agent of
Parent) concerning any proposed merger, sale or licensing of any significant
portion of the assets, sale of shares of capital stock (including without
limitation any proposal or offer to the Company's shareholders), or similar
transactions involving the Company or any Subsidiary (an "Alternative
Transaction"), or otherwise knowingly facilitate any effort or attempt to make
or implement an Alternative Transaction. The Company will promptly inform Parent
of any proposal or inquiry that it has received or may receive in respect of any
proposed Alternative Transaction or of any such information requested from it or
of any such negotiations or discussions being sought to be initiated with the
Company in respect of a proposed Alternative Transaction; provided, however,
that this section shall not prohibit the Board of Directors of the Company from
(i) furnishing information to or entering into discussions or negotiations with,
any person or entity that makes an unsolicited (from the date of this Agreement)
Superior Proposal, if, and only to the extent that, (a) the Board of Directors
of the Company determines in good faith that such action is so required for the
Board of Directors to comply with its fiduciary duties to shareholders imposed
by law, after consultation with independent, outside counsel (who may be the
Company's regularly engaged legal counsel), and (b) prior to first furnishing
information to, or first entering into substantive discussions or negotiations
with, such person or entity, the Company provides written notice to Parent to
the effect that it is furnishing information to, or entering into substantive
discussions or negotiations with, such person or entity, and (c) the Company
keeps Parent informed of the status of any such discussions or negotiations; and
(ii) to the extent applicable, complying with Rule 14e-2 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), (y) permit the Company to enter into
any agreement providing for an Alternative Transaction (other than a usual and
customary confidentiality agreement) for as long as this Agreement remains in
effect, or (z) affect any other obligation of the Company under this Agreement.
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
determined in its good faith judgment to be more favorable to the Company's
shareholders 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
         all commercially reasonable efforts to provide acceptable alternative
         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,



                                       27


<PAGE>   33



         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,
         clinicals, 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 and in accordance with the confidentiality
         agreement dated October 1, 1998, between Parent and the Company (the
         "Confidentiality Agreement").

         5.5      Approval of Shareholders; Proxy Statement; Registration
Statement.

                  (a) The Company shall promptly take all action necessary in
         accordance with Indiana law and the Company's Articles of Incorporation
         and Bylaws to cause a special meeting of the Company's shareholders
         (the "Company Shareholders Meeting") to be duly called and (unless
         prohibited by the IBCL as advised by Indiana counsel to the Company)
         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. The shareholder vote or consent
         required for approval of the Plan of Merger and the Merger shall be no
         greater than that set forth in the IBCL and the Company's Articles 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 outstanding shares of Company
         Common Stock is all that is necessary to obtain shareholder approval of
         the Plan of Merger and the Merger. The Company shall use all reasonable
         efforts to obtain the approval by the Company's shareholders of this
         Agreement, the Plan of Merger, and the Merger, unless otherwise
         required by the applicable fiduciary duties of the directors of the
         Company, as determined by such directors in good faith after
         consultation with independent legal counsel (who may be the Company's
         regularly engaged legal counsel). 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 statement/prospectus,
         together with notice of meeting, form of proxy, and any letter or other
         materials to the Company's shareholders included therein are referred
         to in this



                                       28


<PAGE>   34



         Agreement as the "Proxy Statement/Prospectus"). Parent shall furnish to
         the Company all information concerning Parent, 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 all
         reasonable efforts to cause the definitive Proxy Statement/Prospectus
         to be mailed to the shareholders 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 by the applicable fiduciary duties of
         the directors of the Company, as determined by such directors in good
         faith after consultation with independent legal counsel (who may be the
         Company's regularly engaged legal counsel).

                  (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
         all 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 of the receipt of
         the comments of the SEC and of any request by the SEC for amendments or
         supplements to the Registration Statement 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, 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 or 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 Merger
         Subsidiary or their respective officers or directors should occur or 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



                                       29


<PAGE>   35



         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 all
reasonable efforts to obtain all 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 all reasonable efforts to obtain all approvals and consents of
all third parties necessary on the part of Parent to consummate the transactions
contemplated hereby. The Company agrees to cooperate with Parent 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, and shall use all reasonable efforts to deliver or cause to be
         delivered to Parent prior to the Effective Time such an affiliate's
         letter executed 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 to be
         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.

                  (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



                                       30


<PAGE>   36



         Securities Act, Parent will use all reasonable efforts to comply with
         Rule 144(c)(1) under the Securities 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, the
filing fees required under the HSR Act or any Foreign Merger Laws, and the fees
charged by PricewaterhouseCoopers LLP for the letters described in Section 5.16
(the "Shared Expenses").

         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
its reasonable best 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 its best 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 its best 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 and the 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 its best 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 other transactions contemplated by this



                                       31


<PAGE>   37



         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 its best
         efforts to 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 Parent 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 Parent.

         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 or 6.3.

         5.12 Voting of Shares. To induce Parent to execute this Agreement,
certain executive officers and directors of the Company have executed and
delivered as of the date hereof Agreements to Facilitate Merger in the form
attached hereto as EXHIBIT C, 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 Shareholders Meeting.

         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 such number of shares of Company Common
Stock as equals 19.9% of the aggregate number of outstanding shares of Company
Common Stock at an exercise price equal to $115 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 its reasonable best efforts to obtain,
prior to the Effective Time, approval for the listing of



                                       32


<PAGE>   38



such Parent Common Stock, subject to official notice to the NYSE of issuance.
The Company shall cooperate with Parent in such listing application.

         5.15     Indemnification.

                  (a) The articles 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 articles 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,
         unless such modification is required by law. 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 articles of incorporation and bylaws
         with respect to acts occurring at or before the Effective Time
         (including the transactions contemplated by this Agreement).

                  (b) For a period of three 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 such persons, and (ii) Parent may satisfy its
         obligations hereunder by extending the discovery or reporting period
         under such policy for three 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 those persons who are
         currently covered by the Company's directors' and officers' liability
         insurance policy (a copy of which has been heretofore delivered or made
         available to Parent or its advisors ) (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 150% of
         the annual premium currently paid by the Company for such insurance;
         and provided further that if the cost per year of such coverage exceeds
         such 150% amount, Parent shall be obligated to obtain such coverage as
         is available for a cost per year not exceeding such amount.

                  (c) In the event Parent, the Surviving Corporation or any of
         their successors or assigns (i) consolidates with or merges into any
         other person 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



                                       33


<PAGE>   39



         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 Company,
         Parent, the Surviving Corporation and the Indemnified Parties, 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 its
         reasonable efforts to cause to be delivered to Parent and the Company
         the following letters from PricewaterhouseCoopers LLP addressed to
         Parent and the Company: (i) a letter dated the date of this Agreement,
         stating that after appropriate review and based on its familiarity with
         the Company, neither the Company nor any of its shareholders who are
         affiliates has taken or agreed to take any action that would prevent
         Parent from accounting for the Merger as a pooling of interests
         transaction under Opinion 16 of the Accounting Principles Board and
         applicable SEC rules and regulations; and (ii) a letter dated as of the
         Closing Date stating that after appropriate review and based on its
         familiarity with the Company, neither the Company nor any of its
         shareholders has taken or agreed to take any action that would prevent
         Parent from accounting for the Merger as a pooling of interests under
         Opinion 16 of the Accounting Principles Board and applicable SEC rules
         and regulations.

                  (b) The Company shall cooperate with Parent and Parent shall
         use its reasonable efforts to cause to be delivered to the Company and
         Parent the following letters from PricewaterhouseCoopers LLP addressed
         to the Company and Parent: (i) a letter dated the date of this
         Agreement, stating that after appropriate review of this Agreement and
         a letter from the Parent describing the transaction, the Merger will
         qualify as a pooling of interests transaction under Opinion 16 of the
         Accounting Principles Board and applicable SEC rules and regulations;
         and (ii) a letter 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 its 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 person or persons designated
by Parent.

         5.18     Benefit Plans and Employee Matters.




                                       34


<PAGE>   40



                  (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 employees that, in the
         aggregate, are substantially comparable or more favorable, as a whole,
         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 to that offered by Parent and its
         subsidiaries generally. From and after the Effective time, the 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 were disclosed to Parent prior to the date
         hereof.

                  (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 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. 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.

         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, each party hereto shall use all reasonable 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
take all reasonable actions necessary 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



                                       35


<PAGE>   41



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.


                                    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 has the effect of making the Merger illegal or otherwise
         prohibiting the consummation of the Merger.

                  (b) Shareholder Approval. The approval of the shareholders of
         the Company referred to in Section 5.5 hereof shall have been obtained,
         in accordance with the IBCL and the Company's Articles 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 or
         qualification 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:

                  (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



                                       36


<PAGE>   42



         though such representations and warranties were made on such date,
         except that those representations and warranties that address matters
         only as of a particular date shall remain true and correct as of such
         date, and except in any case for any inaccuracies that have not had, or
         could not reasonably be expected to have a Company Material Adverse
         Effect, and except as provided in Section 3.1 of the Company Disclosure
         Schedule but subject to the provisions of Section 8.14 hereof. Parent
         shall have received a certificate to the foregoing effect signed by the
         Chief Executive 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 on or prior to the
         Closing, and Parent shall have received a certificate to such effect
         signed by the Chief Executive Officer of the Company.

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

                  (d) Resignations and Waivers. Such officers and directors of
         the Company or of any Subsidiary as shall have been specified by Parent
         shall have tendered their respective resignations effective as of the
         Effective Time (without prejudice to rights and obligations under
         employment agreements). Parent shall have received from any person
         having a right to designate one or more nominees to the Board of
         Directors of the Company a signed waiver of such right, in form
         reasonably acceptable to Parent.

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

         6.3     Conditions to Obligations 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 warranties that address matters only as of a
         particular date shall remain true and correct as of such date, and
         except in any case for any inaccuracies that have not had, or could 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



                                       37


<PAGE>   43



         be performed or complied with by them on 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
         Shearman & Sterling, counsel to the Company, based upon representations
         of Parent, Merger Sub 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 shareholders,
         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 
shareholders 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 April 30, 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 an
         authority (a "Foreign Authority") pursuant to Foreign Merger Laws, such
         date shall be extended to the 90th day 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 September 30, 1999;




                                       38


<PAGE>   44



                  (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
         Shareholders Meeting, the requisite vote of the shareholders of the
         Company 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 shareholders of the Company;

                  (e) by Parent if either (i) the Board of Directors of the
         Company has recommended, approved, accepted, or entered into an
         agreement regarding, an Alternative Transaction, as defined in Section
         5.3, (ii) the Board of Directors of the Company has withdrawn or
         modified in a manner materially adverse to Parent its recommendation of
         the Merger, or (iii) 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
         shareholders or takes no position with respect to the acceptance of
         such tender offer or exchange offer by its shareholders;

                  (f) by the Company if (i) it is not in material breach of its
         obligations under this Agreement, (ii) the Board of Directors of the
         Company 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 five business days after
         receipt of the Company's written notice of its intention to enter into
         a binding agreement for a Superior Proposal, an offer that the Board of
         Directors of the Company determines, in good faith after consultation
         with its financial and legal advisors, is at least as favorable to the
         shareholders of the Company as the Superior Proposal, and (iv) if so
         requested by Parent 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 sixth business day after it has
         provided 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



                                       39


<PAGE>   45



         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 its 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 such best efforts, Parent may not
         terminate this Agreement under this Section 7.1(g) and; provided,
         further, that Parent's right to terminate this Agreement for any
         Terminating Company Breach is subject to the provisions of Section 3.1
         of the Company Disclosure Schedule and Section 8.14 of this Agreement;

                  (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 its 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 such
         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 terminated by Parent pursuant 
                  to Sections 7.1(e)(i) or 7.1(e)(iii); or

                           (ii) this Agreement is terminated by Parent pursuant
                  to Section 7.1(e)(ii) and at or prior to the time that the
                  Board of Directors of the Company shall have withdrawn or
                  modified its recommendation of the Merger as described in
                  Section 7.1(e)(ii), a proposal for an Alternative Transaction
                  shall have been made and the Board of Directors of the Company
                  shall not have reinstated its recommendation of the Merger
                  prior to such termination by Parent.

                           (iii) this Agreement is terminated by the Company 
                  pursuant to Section 7.1(f); or

                           (iv) (A) this Agreement is terminated by Parent or
                  the Company pursuant to Section 7.1(d) due to the failure of
                  the Company's shareholders to approve the Merger, (B) at any
                  time prior to the time of such failure to so approve the
                  Merger a proposal for an Alternative Transaction shall have
                  been publicly



                                       40


<PAGE>   46



                  announced and (C) within 12 months of the date of such
                  termination, the Company shall have entered into an agreement
                  providing for an Alternative Transaction.

         then, in any such event, the Company will pay to Parent, (1) upon
         demand by Parent on or after the termination date in the event of
         termination pursuant to Section 7.1(f), and (2) within ten business
         days after demand by Parent in the case of termination in the case of
         the events specified in clause (i) or (ii) above, and (3) within ten
         business days after demand by Parent after the date of entering into an
         agreement providing for an Alternative Transaction, in the case of the
         events specified in clause (iv) above (in each case by wire transfer of
         immediately available funds to an account designated by Parent for such
         purpose), a fee equal to $105,000,000; provided in the event the fee is
         payable pursuant to one or more of clauses (i), (ii), (iii) or (iv)
         above, the fee shall be due and payable pursuant to the clause calling
         for payment at the earliest time.

                  (b) 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 this
         Agreement is terminated by Parent pursuant to Section 7.1(e)(ii), where
         the conditions of Section 7.2(a)(ii) do not apply, or if this Agreement
         is terminated (other than in the case of the events described in
         Section 7.2(a) above) pursuant to other provisions but termination
         pursuant to Section 7.1(e)(ii) is available to Parent, then the Company
         will pay to Parent, within ten business days after demand by Parent
         after the termination date (by wire transfer of immediately available
         funds to an account designated by Parent for such purpose), a fee equal
         to $65,000,000; provided, however, if within 12 months of such
         termination the Company has entered into an agreement providing for an
         Alternative Transaction, then within ten business days after demand by
         Parent after the date of entering into an agreement providing for an
         Alternative Transaction, the Company shall pay to Parent (by wire
         transfer of immediately available funds to an account designated by
         Parent for such purpose) an additional fee of $40,000,000.

                  (c) 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 this Section 7.2, 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



                                       41


<PAGE>   47



         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
         date of such change in such prime rate.

                  (d) Parent agrees that the payments provided for in Sections
         7.2(a) and (b) shall be the sole and exclusive remedies of Parent upon
         termination of this Agreement pursuant to Section 7.1(d), (e) and (f),
         as the case may be, and such remedies shall be limited to the sums
         stipulated in such Sections 7.2(a) and (b), 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) and 7.2(b) (except in the case of Section 7.2(b) for the
         additional fee payable pursuant to such section); provided that, in the
         event Section 7.2(b) and one or more clauses of Section 7.2(a) have
         become applicable, Section 7.2(a) shall govern. In no event shall the
         sum of the termination fee paid pursuant to Section 7.2(a) or Section
         7.2(b) plus the Cancellation Amount (as defined in the Stock Option
         Agreement) paid pursuant to the Stock Option Agreement exceed
         $105,000,000.

                  (e) 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 shareholders 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. 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



                                       42


<PAGE>   48



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 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 5.8, 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




                                       43


<PAGE>   49



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

                       Sofamor Danek Group, Inc.
                       1800 Pyramid Place
                       Memphis, TN  38132
                       FAX: (901) 344-1576
                       Attention:  Stephen S. Phillips, Executive Vice President
                                        and General Counsel

                       with a copy to:

                       Shearman & Sterling
                       599 Lexington Avenue
                       New York, NY 10022
                       FAX: (212) 848-7179
                       Attention:  Creighton O'M. Condon, 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 Indiana 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).

         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 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.



                                       44


<PAGE>   50



         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 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; 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.

         8.14 Section 3.1 of Company Disclosure Schedule. The provisions and
effects of Section 3.1 of the Disclosure Schedule, as described therein, shall
not apply and shall have no effect on any representations, warranties,
conditions, termination rights or otherwise under this Agreement in the event
the Company has fraudulently or with an intent to deceive misrepresented or
omitted any material information in the disclosures made by the Company to
Parent prior to the date hereof regarding the matters described in Section 3.1
of the Company Disclosure Schedule.


                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]



                                       45


<PAGE>   51



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

                                         MEDTRONIC, INC.


                                         By: /s/ William W. George       
                                             -----------------------------------
                                                 William W. George, Chairman
                                                 and Chief Executive Officer

                                         MSD MERGER CORP.


                                         By: /s/ William W. George           
                                             -----------------------------------
                                                 William W. George, Chairman
                                                 and Chief Executive Officer

                                         SOFAMOR DANEK GROUP, INC.


                                         By: /s/ E.R. Pickard                  
                                             -----------------------------------
                                                 E.R. Pickard, Chairman
                                                 and Chief Executive Officer






                                       46



<PAGE>   1



                                                                     Exhibit 2.2

                 Stock Option Agreement, dated November 1, 1998,
          by and between Medtronic, Inc. and Sofamor Danek Group, Inc.







<PAGE>   2




                             STOCK OPTION AGREEMENT


         THIS AGREEMENT is dated as of November 1, 1998, between Medtronic,
Inc., a Minnesota corporation ("Grantee"), and Sofamor Danek Group, Inc., an
Indiana corporation ("Issuer").

                                    RECITALS

         A.       Grantee, Issuer, and MSD Merger Corp., an Indiana corporation 
and wholly-owned subsidiary of Grantee ("Merger Subsidiary"), have entered 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, no 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 5,366,478 shares of Issuer Common Stock (the "Option Shares"), in
the manner set forth below, at an exercise price of $115 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 11),
         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 any event or
         circumstance the occurrence of which results in the fee specified in
         Section 7.2(a) of the Merger Agreement becoming payable to Grantee,
         after demand by Grantee, or the additional $40 Million fee specified in
         Section 7.2(b) of the Merger Agreement becoming payable to Grantee,
         after demand by Grantee.



                                        1


<PAGE>   3




                  (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 specifying its intention to exercise
         the Option, 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 three 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"). 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 ten 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
         lesser 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 New York Stock Exchange 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
                  and (C) in the case of any Alternative Transaction structured
                  as an asset acquisition, the highest aggregate consideration
                  offered to be paid or paid in any such transaction or proposed
                  transaction, divided by the number of shares of Issuer Common
                  Stock then outstanding, and

                           (y) $105 Million divided by the initial number of
                  Option Shares,

         multiplied by (ii) the number of Option Shares then covered by the
         Option; provided, however, that if, prior to payment of the
         Cancellation Amount, Grantee has been paid by Issuer a termination fee
         described in Section 7.2 (a) or (b)of the Merger Agreement (the
         "Termination Fee"), then the Cancellation Amount shall be reduced (but
         not below zero) to the extent necessary so that the sum of the
         Termination Fee and the Cancellation Amount shall not exceed $105
         Million. 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 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 $105 Million or (ii) the sum of the Termination Fee paid plus
         the Cancellation Amount exceed $105 Million.




                                        2


<PAGE>   4



                  (c) Following exercise of the Option by Grantee, in the event
         that Grantee thereafter at any time sells, pledges, or otherwise
         disposes of (including, without limitation, by merger or exchange) any
         of the Option Shares (a "Sale"), then any Termination Fee due and
         payable by Issuer following such time shall be reduced to the extent
         necessary so that the sum of

                           (x) the Termination Fee and

                           (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")

         shall not exceed $105 Million. If Issuer has paid to Grantee the
         Termination Fee prior to the Sale, then Grantee shall remit to Issuer,
         within ten business days after completion of any sale, the excess, if
         any, of the Option Share Profit which, when added to the Termination
         Fee already paid, exceeds $105 Million.

         3.       Payment of Option Price and Delivery of Certificate. Any 
Closings under Section 2 of this Agreement 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 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 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 its reasonable best efforts to (i)
         effect as promptly as possible upon the request of Grantee and (ii)
         cause to become and remain effective for a period not in excess of six
         months from the day such registration statement first becomes effective
         (or such shorter period as may be necessary to effect the distribution
         of such shares) the registration under the 1933 Act, and any applicable
         state securities laws, of all or any part of the Option Shares as may
         be specified in such request; provided, however, that (i) 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, (ii) Grantee shall not be entitled to
         more than two effective registration statements hereunder, and (iii)
         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 was entitled to include all or a portion of
         the Option Shares.



                                        3


<PAGE>   5




                  (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 shareholder of Issuer (other
         than in connection with (i) employee stock option plans or similar
         arrangements or (ii) corporate acquisitions), Issuer will give prompt
         written notice to all holders of Options or Option Shares of its
         intention to do so and shall use its reasonable best efforts to include
         therein all Option Shares requested by Grantee to be so included. 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 the holder of Options or Option Shares, but excluding
         underwriting discounts and commissions to brokers or dealers. In
         connection with each registration under this Section 4, Issuer shall
         indemnify and hold each holder of Options or Option Shares
         participating in such offering (a "Holder"), 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 such Holder, 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 a Holder to Issuer
         expressly for use in such registration statement.

                  (d) In connection with any registration statement pursuant to
         this Section 4, each Holder 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 any Holder to Issuer expressly for use in such
         registration statement.



                                        4


<PAGE>   6



                  (e) Upon the issuance of Option Shares hereunder, Issuer will
         use its reasonable best efforts promptly to list such Option Shares
         with the New York Stock Exchange or on such national or other exchange
         on which the shares of Issuer Common Stock are at the time listed.

         5.       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 Indiana and has
         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 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
         limitations imposed by law on indemnification for liability under
         federal securities laws.

                  (c) 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 10 hereof), each of which, upon issuance pursuant
         to this Agreement and when paid for as provided herein, will be 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.

                  (d) 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



                                        5


<PAGE>   7



         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.

         6.       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
         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 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.

         7.       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



                                        6


<PAGE>   8



                  STATE LAWS OR PURSUANT TO EXEMPTIONS FROM REGISTRATION
                  UNDER THE ACT, SUCH OTHER STATE LAWS, AND THE RULES AND
                  REGULATIONS PROMULGATED THEREUNDER."

         8.       Reasonable Best 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,
reasonable best efforts to obtain any necessary consents of third parties and
governmental agencies 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.

         9.       Certain Conditions. The obligation of Issuer to issue Option 
Shares under this Agreement upon 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;

                  (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; and

                  (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.

         10.      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.

         11.      Expiration. The Option shall expire at the earlier of (a) the
Effective Time (as defined in the Merger Agreement), (b) if exercisable pursuant
to Section 2 hereof, the later of one year after termination of the Merger
Agreement in accordance with the terms thereof or 90 days after an Exercise
Event, or (c) termination of the Merger Agreement in accordance with the terms
thereof in circumstances under which neither the fee specified in Section 7.2(a)
thereof nor the fee



                                        7


<PAGE>   9



specified in Section 7.2(b) thereof can in any circumstances become payable
(such expiration date is referred to as the "Expiration Date").

         12.      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 their reasonable best 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 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 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.




                                        8


<PAGE>   10



                  (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, 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

                  If to Issuer:

                        Sofamor Danek Group, Inc.
                        1800 Pyramid Place
                        Memphis, TN  38132
                        FAX: (901) 344-1576
                        Attention:  Stephen S. Phillips, Executive Vice
                                         President and General Counsel

                        with a copy to:

                        Shearman & Sterling
                        599 Lexington Avenue
                        New York, NY  10022
                        FAX: (212) 848-7179
                        Attention:  Creighton O'M. Condon, Esq.




                                        9


<PAGE>   11



                  (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 Indiana
         applicable to contracts made and to be performed therein.

                  (k) Jurisdiction and Venue. Each of Issuer and Grantee hereby
         agrees that any proceeding relating to this Agreement shall be brought
         in a state court of Indiana. Each of Issuer and Grantee hereby consents
         to personal jurisdiction in any such action brought in any such Indiana
         court, consents to service of process by registered mail made upon such
         party and such party's agent, and waives any objection to venue in any
         such Indiana court or to any claim that any such Indiana court is an
         inconvenient forum.

                  (l) 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 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.

                  (m) 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.


                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]





                                       10


<PAGE>   12



                  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: /s/ William W. George  
                                              ----------------------------------
                                                  William W. George, Chairman
                                                  and Chief Executive Officer

                                          SOFAMOR DANEK GROUP, INC.


                                          By: /s/ E.R. Pickard 
                                              ----------------------------------
                                                  E.R. Pickard, Chairman
                                                  and Chief Executive Officer




                                       11



<PAGE>   1



                                                                    Exhibit 99.1

                                  Press Release

                   Medtronic and Sofamor Danek Agree to Merge
        As Global Leader In Neurological and Spinal Medical Technologies

MINNEAPOLIS, Nov. 2 /PRNewswire/ -- Medtronic, Inc. (NYSE: MDT - news), and
Sofamor Danek Group, Inc. (NYSE: SDG - news), today announced a merger agreement
that will transform Medtronic into the global leader in advanced medical
technologies for the treatment of neurological and spinal disorders. The
agreement calls for Medtronic to exchange $115 in Medtronic stock for each share
of Sofamor Danek. The agreement is subject to certain collar provisions.

"The merger with Sofamor Danek considerably broadens and strengthens Medtronic's
market position and technology in the spinal and neurosurgery field," said
William W. George, Medtronic chairman and chief executive officer. "Sofamor
Danek has established itself in the leadership role by its extraordinary
customer service and exceptional products. Combined with Sofamor Danek,
Medtronic's neurological and spinal product line will be over $1 billion in
revenues next fiscal year, growing at 25 percent a year as we move into the 21st
century. Sofamor Danek's 1998 revenues are expected to approach $400 million on
a worldwide basis."

Sofamor Danek is the leader in the $850 million worldwide market for
technologies used by spine surgeons. It is estimated that more than 5 million
people suffer from debilitating back pain and that more than 275,000 surgical
procedures are performed each year. The company produces a number of products
that treat a variety of disorders of the cranium and spine, including
traumatically induced conditions, degenerative conditions, deformities and
tumors. Its product offerings include:

    --   a wide range of sophisticated internal fixation devices, including
         interbody fusion systems, and services for the distribution of
         autologous bone dowels;
    --   the Med(TM) MicroEndoscopic Discectomy System used for the surgical 
         removal of vertebral discs; and
    --   the Stealthstation(R) System which leads a family of image-guided
         surgical navigation products that precisely target operating sites for
         cranial and spinal procedures.

Among developmental products are biologics, such as bone morphogenetic proteins,
other bone growth factors, and autologous derivatives (bone paste), that enhance
healing following reconstructive procedures.

"The product lines of Medtronic and Sofamor Danek are highly complementary. By
combining the technology, service and energy of the two companies, we will be
able to develop new and better solutions more quickly and deliver these
solutions to doctors and their patients faster, more



                                        1


<PAGE>   2


cost-effectively, and with better customer support. As a result, both our
customers and our shareholders will benefit," said E.R. Pickard, chairman and
chief executive officer of Sofamor Danek.

Medtronic's new neurological and spinal business will be led by John Meslow as
its president. Pickard will continue to lead Sofamor Danek, reporting to Meslow
and will eventually assume responsibility for all of Medtronic's neurosurgery
businesses including PS Medical and recently acquired Midas Rex. Other
businesses reporting to Meslow include neurostimulation, drug delivery, and
functional stimulation and diagnostics.

"The spinal and cranial surgery businesses represent a major new growth platform
for Medtronic that will complement our existing growth platforms in
neurosurgery, neurostimulation and drug delivery," said Meslow.

Medtronic said that, aside from one-time transaction-related charges, the merger
will be neutral to current year earnings and add several cents a share in FY
2000, becoming increasingly accretive in the following years. The transaction is
structured as a tax-free pooling of interests.

The $115 per share acquisition 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 Sofamor Danek shareholders' meeting on the
merger is between $69.63 and $56.97 per share. If such average is within this
range, then each Sofamor Danek share will be exchanged for Medtronic shares with
a value of $115. If such average Medtronic stock price is equal to or greater
than $69.63 then each Sofamor Danek share will be exchanged for 1.65159
Medtronic shares, and if it is equal to or less than $56.97 then each Sofamor
Danek share will be exchanged for 2.01861 Medtronic shares.

The transaction is subject to Sofamor Danek shareholder approval, regulatory
approvals and other customary closing conditions. The directors of the company
have agreed to vote unanimously in favor of the merger.

Headquartered in Memphis, TN, Sofamor Danek Group, Inc., employs about 1,200 and
operates manufacturing facilities in Warsaw, IN; Broomfield, CO; West Palm
Beach, FL; and Rang-du-Fliers, France. Its Internet address is
www.sofamordanek.com.

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 statements 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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