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EXHIBIT 3.3
                         IMAGE GUIDED TECHNOLOGIES, INC.

                              ARTICLES OF AMENDMENT
                                       TO
                 RESTATED AND AMENDED ARTICLES OF INCORPORATION



     FIRST: That the name of the Corporation is Image Guided Technologies, Inc.

     SECOND: That the text of the Amendment to the Restated and Amended Articles
of Incorporation of the Corporation determining the designations, preferences,
limitations and relative rights of the Series B Preferred Stock is set forth on
Exhibit A attached hereto and is incorporated herein by reference.

     THIRD: That the Amendment was adopted on May 31, 2000.

     FOURTH: That the Amendment was duly adopted by the Board of Directors of
the Corporation and that shareholder action was not required.

     IN WITNESS WHEREOF, said Image Guided Technologies, Inc. has caused these
Articles of Amendment to be duly executed this 1st day of June, 2000.


                                       Image Guided Technologies, Inc.

                                       By:  /s/
                                          -------------------------
                                          Paul L. Ray, Chairman

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                                                                       EXHIBIT A

                            SERIES B PREFERRED STOCK


     Image Guided Technologies, Inc., a Colorado corporation (the
"Corporation"), shall have the authority to issue 383,142 shares of Series B
Preferred Stock. A statement of the preferences, limitations and relative rights
of the Series B Preferred Stock is as follows:

     1.   DIVIDENDS

     The holders of the outstanding Series B Preferred Stock shall not be
entitled to receive any preferential dividends vis-a-vis the holders of the
outstanding Common Stock but instead shall have the same rights to dividends as
the holders of the outstanding Common Stock. When, as and if a dividend is
declared on the Common Stock, then each holder of Series B Preferred Stock shall
be entitled to receive a dividend equal to that dividend that would be received
by a holder of the number of shares of Common Stock into which such holder's
shares of Series B Preferred Stock would be convertible, pursuant to Sections 3
and 4 below, immediately after the close of business on the record date fixed
for such dividend. This Section 1 shall not apply to, and the holders of Series
B Preferred Stock shall have no rights under this Section 1 to, dividends in
Common Stock, Options (as hereafter defined) or Convertible Securities (as
hereafter defined) of the Corporation.

     2.   LIQUIDATION PREFERENCE

     (a)  BASIC PREFERENCE RIGHTS. In the event of any voluntary or involuntary
liquidation, dissolution, or winding up of the Corporation (a "Liquidation"):

               (1) PAYMENTS TO HOLDERS OF SERIES B PREFERRED STOCK. Each holder
          of shares of Series B Preferred Stock then outstanding shall be
          entitled to receive an amount equal to $0.783 for each share of Series
          B Preferred Stock, before any payment shall be made in respect of the
          Corporation's Common Stock.

               (2) PAYMENTS TO HOLDERS OF COMMON STOCK. After payment has been
          made to the holders of the Series B Preferred Stock of the full
          amounts to which they are entitled under Section 2(a)(1) above, the
          holders of Common Stock then outstanding shall be entitled to receive,
          distributed on a pro rata basis, an amount equal to $0.783 per share.

               (3) SHOULD ASSETS EXCEED PAYMENTS. After payment has been made to
          the holders of Series B Preferred Stock and of Common Stock of the
          full amounts to which they are entitled under Section 2(a)(1) and (2)
          above, the remaining assets of the Corporation available for
          distribution to shareholders shall be distributed pro rata among all
          of the Corporation's shareholders. For purposes of this Section

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          2(a)(3), holders of Series B Preferred Stock shall share in this
          distribution in proportion to the number of shares of Common Stock
          they would hold had full conversion of their Series B Preferred Stock
          occurred immediately prior to Liquidation, according to the provisions
          of Sections 3 and 4 below.

               (4) SHOULD ASSETS BE INSUFFICIENT. If upon a Liquidation the
          assets of the Corporation available for distribution to its
          shareholders shall be insufficient to make full payments due under
          Section 2(a)(1) above, then the holders of the Series B Preferred
          Stock then outstanding shall share ratably in any distribution
          according to the respective amounts which would be payable in respect
          of the shares held by them if all amounts payable on their shares
          pursuant to Section 2(a)(1) above were paid in full. If upon a
          Liquidation the assets of the Corporation available for distribution
          are adequate to make full payment due under Section 2(a)(1) but
          insufficient to make full payment due under Section 2(a)(2), then the
          holders of Common Stock shall share ratably according to the
          respective amounts which would be payable in respect of the shares
          held by them if all amounts payable on their shares pursuant to
          Section 2(a)(2) above were paid in full.

               (5) SOURCE OF LIQUIDATION PAYMENT. The holders of stock shall be
          paid under this Section 2(a) out of the assets of the Corporation
          available for distribution to its shareholders, whether from capital,
          surplus or earnings.

               (6) MERGER OR ACQUISITION. The Corporation shall not effect a
          merger, reorganization, or consolidation of the Corporation into or
          with another corporation (other than a merger of the Corporation with
          a wholly owned subsidiary of Stryker Corporation) or the sale or
          transfer of all or substantially all of the assets of the Corporation
          until the Corporation shall have provided notice to all holders of
          Series B Preferred Stock pursuant to Section 2(b) below. Unless
          otherwise agreed to by the holders of a majority of the Series B
          Preferred Stock which is then outstanding, a merger, consolidation,
          reorganization or sale of all or substantially all of the
          Corporation's assets (other than a merger of the Corporation with a
          wholly owned subsidiary of Stryker Corporation) shall be deemed to be
          a Liquidation.

     (b)  NOTICE. In the event of any Liquidation of the Corporation, or in the
event of any merger, reorganization, or consolidation of the Corporation into or
with another corporation (other than a merger of the Corporation with a wholly
owned subsidiary of Stryker Corporation), or the sale or transfer of all or
substantially all of the assets of the Corporation, the Corporation shall give
each holder of Series B Preferred Stock initial written notice of the proposed
action within twenty (20) days after the date the Board of Directors approves
such action, or twenty (20) days prior to any shareholders' meeting called to
approve such action, or twenty (20) days after the commencement of any
involuntary proceeding, whichever is earliest.

               (1) CONTENT OF NOTICE. Such initial written notice shall describe
          the material terms and conditions of the proposed action, including a
          description of the stock, cash, and property to be received by the
          holders of Series B Preferred Stock upon consummation of the proposed
          action. If any material change in the facts set

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          forth in the initial notice shall occur, the Corporation shall
          promptly give written notice to each holder of Series B Preferred
          Stock of that material change.

               (2) NOTICE PRECEDES CONSUMMATION. The Corporation shall not
          consummate any Liquidation of the Corporation before the expiration of
          twenty (20) days after the mailing of the initial notice or ten (10)
          days after the mailing of any subsequent written notice, whichever is
          later. But any such 20-day or 10-day period may be shortened upon the
          written consent of the holders of a majority of the Series B Preferred
          Stock then outstanding.

     (c)  NON-CASH DISTRIBUTIONS ON LIQUIDATION. In the event of any Liquidation
of the Corporation which will involve the distribution of assets other than
cash, the Corporation shall promptly engage a competent independent appraiser to
determine the value of the assets to be distributed. With respect to the
valuation of securities, the Corporation shall engage such appraiser as shall be
approved by the holders of a majority of the Series B Preferred Stock then
outstanding. The Corporation shall, upon receipt of such appraiser's valuation,
give prompt written notice to each holder of shares of Series B Preferred Stock
of the appraiser's valuation.

     3.   CONVERSION

     (a)  CONVERSION RIGHTS.

               (1) OPTIONAL CONVERSION. Each share of Series B Preferred Stock
          shall be convertible, at the option of the holder thereof, at any time
          after the earliest of December 31, 2000, the date that a notice is
          mailed to the holders of record of outstanding Series B Preferred
          Stock to be redeemed pursuant to Section 6 hereof or the date that a
          notice is mailed to the holders of record of outstanding Series B
          Preferred Stock pursuant to Section 8 hereof, into fully paid and
          non-assessable shares of Common Stock of the Corporation at the then
          applicable Conversion Formula (as described below).

               (2) CONVERSION FORMULA. Each share of Series B Preferred Stock
          shall be valued at $0.783 (the "Original Purchase Price") for purposes
          of such optional conversion. The number of shares of Common Stock into
          which each share of the Series B Preferred Stock may be converted (the
          "Conversion Formula") shall be determined by dividing the Original
          Purchase Price by the Conversion Price (as determined as provided
          below) in effect at the time of the conversion.

     (b)  INITIAL CONVERSION PRICE. The conversion price per share at which
shares of Common Stock shall be issuable upon conversion of any shares of Series
B Preferred Stock (the "Conversion Price") shall be equal to the Original
Purchase Price, subject to adjustment as provided in Section 4 below.

     (c)  MECHANICS OF CONVERSION.

               (1) OPTIONAL CONVERSION. Before any holder of Series B Preferred
          Stock will be entitled to convert the same into shares of Common Stock
          pursuant to Section 3(a)(1) hereof, such holder shall surrender the
          certificate or certificates

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          therefor, duly endorsed, at the office of the Corporation or of any
          transfer agent for the Series B Preferred Stock, and shall give
          written notice to the Corporation at such office that such holder
          elects to convert the same and will state therein the name or names in
          which the certificate or certificates for shares of Common Stock
          should be issued. The Corporation, as soon as practicable thereafter,
          will issue and deliver at such office to such holder of Series B
          Preferred Stock or to the holder's nominee or nominees, a certificate
          or certificates for the number of shares of Common Stock to which such
          holder will be entitled as aforesaid. Such conversion shall be deemed
          to have been made immediately prior to the close of business on the
          date of such surrender of the shares of Series B Preferred Stock to be
          converted (the "Conversion Date"), and the person or persons entitled
          to receive the shares of Common Stock issuable upon such conversion
          shall be treated for all purposes as the record holder or holder of
          such shares of Common Stock on such Conversion Date.

               (2) NEW CERTIFICATES. Upon conversion of only a portion of the
          number of shares of Series B Preferred Stock represented by a
          certificate surrendered for conversion, the Corporation shall issue
          and deliver upon the written order of the holder at the expense of the
          Corporation, a new certificate covering the number of shares of Series
          B Preferred Stock representing the unconverted portion of the
          certificate so surrendered.

     (d)  NO FRACTIONAL SHARES. The Corporation shall not issue fractional
shares of Common Stock or scrip upon conversion of shares of Series B Preferred
Stock. If more than one share of Series B Preferred Stock shall be surrendered
for conversion at any one time by the same holder, the number of full shares of
Common Stock issuable upon their conversion shall be computed on the basis of
the aggregate number of shares of Series B Preferred Stock so surrendered.
Instead of any fractional shares of Common Stock which would otherwise be
issuable upon conversion of any shares of Series B Preferred Stock, the
Corporation shall pay a cash adjustment in respect of such fractional interest
in an amount equal to the same fraction of the Conversion Price in effect on the
business day next preceding the day of conversion.

     (e)  TAXES INCIDENT TO CONVERSION. The Corporation shall pay any and all
issue taxes and other taxes (excluding income taxes) that may be payable in
respect to any issue or delivery of shares of Common Stock on conversion of
Series B Preferred Stock. The Corporation shall not be required to pay any tax
that may be payable in respect of any transfer involved in the issue and
delivery of shares of Common Stock in a name other than that in which the Series
B Preferred Stock so converted was registered, and no such issue or delivery
shall be made unless and until the person requesting such issue has paid to the
Corporation the amount of any such tax, or has established, to the satisfaction
of the Corporation, that such tax has been paid.

     (f)  SUFFICIENT RESERVES OF STOCK. The Corporation shall at all times
reserve and keep available, out of its authorized but unissued Common Stock,
solely for the purpose of effecting the conversion of the Series B Preferred
Stock, the full number of shares of Common Stock deliverable upon the conversion
of all Series B Preferred Stock from time to time outstanding.

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     (g)  VALID ISSUE FOR CONVERSION. All shares of Common Stock that may be
issued upon conversion of the shares of Series B Preferred Stock shall, upon
issuance by the Corporation, be validly issued, fully paid, non-assessable and
free from all taxes, liens and charges with respect to their issuance.

     (h)  CANCELLATION OF SERIES B PREFERRED STOCK ON CONVERSION. All
certificates of the Series B Preferred Stock surrendered for conversion shall be
appropriately cancelled on the books of the Corporation, and the shares so
converted represented by such certificate shall be deemed to be cancelled and no
longer authorized or available for issuance by the Corporation.

     4.   ADJUSTMENT OF CONVERSION PRICE

     (a)  ANTI-DILUTION ADJUSTMENT. The Conversion Price in effect at any time
shall be adjusted from time to time as provided in this Section 4.

     (b)  ADJUSTMENT OF PRICE UPON ISSUANCE OF COMMON STOCK. Except as provided
in paragraph 4(d) hereof, if and whenever the Corporation shall issue or sell,
or is in accordance with subparagraphs 4(b)(i) through 4(b)(vii) deemed to have
issued or sold, any shares of its Common stock for a consideration per share
less than the Conversion Price in effect immediately prior to the time of such
issue or sale, then, forthwith upon such issue or sale, the Conversion Price
shall be reduced to the price (calculated to the nearest tenth of a cent)
determined by dividing (i) an amount equal to the sum of (A) the number of
shares of Common Stock outstanding immediately prior to such issue or sale
(including as outstanding all shares of Common Stock issuable upon conversion of
outstanding Series B Preferred Stock) multiplied by the then existing Conversion
Price, and (B) the consideration, if any, received by the Corporation upon such
issue or sale, by (ii) the total number of shares of Common Stock outstanding
immediately after such issue or sale (including as outstanding all shares of
Common Stock issuable upon conversion of outstanding Series B Preferred Stock).

     No adjustment of the Conversion Price, however, shall be made in an amount
less than $.01 per share, and any such lesser adjustment shall be carried
forward and shall be made at the time and together with the next subsequent
adjustment which together with any adjustments so carried forward shall amount
to $.01 per share or more.

     For purposes of this paragraph 4(b), the following subparagraphs 4(b)(i) to
4(b)(vii) shall also be applicable:

          (i) ISSUANCE OF RIGHTS OR OPTIONS. In case the Corporation shall in
     any manner grant (whether directly or by assumption in a merger or
     otherwise) any rights to subscribe for or to purchase, or any options for
     the purchase of, Common Stock or any stock or securities convertible into
     or exchangeable for Common Stock (such rights or options being herein
     called "Options" and such convertible or exchangeable stock or securities
     being herein called "Convertible Securities") whether or not such Options,
     or the right to convert or exchange any such Convertible Securities, are
     immediately exercisable, and the price per share for which Common Stock is
     issuable upon the exercise of such Options or upon conversion or exchange
     of such Convertible Securities (determined by dividing (A) the total
     amount, if any, received or receivable by the Corporation as

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     consideration for the granting of such Options, plus the minimum aggregate
     amount of additional consideration payable to the Corporation upon the
     exercise of all such Options, plus, in the case of such Options which
     relate to Convertible Securities, the minimum aggregate amount of
     additional consideration, if any, payable upon the issue or sale of such
     Convertible Securities and upon the conversion or exchange thereof, by (B)
     the total maximum number of shares of Common Stock issuable upon the
     exercise of such Options or upon the conversion or exchange of all such
     Convertible Securities issuable upon the exercise of such Options) shall be
     less than the Conversion Price in effect immediately prior to the time of
     the granting of such Options, then the total maximum number of shares of
     Common Stock issuable upon the exercise of such Options or upon conversion
     or exchange of the total maximum amount of such Convertible Securities
     issuable upon the exercise of such Options shall be deemed to have been
     issued for such price per share as of the date of granting of such Options
     and thereafter shall be deemed to be outstanding. Except as otherwise
     provided in subparagraph 4(b)(iii) below, no adjustment of the Conversion
     Price shall be made upon the actual issue of such Common Stock or of such
     Convertible Securities upon exercise of such Options or upon the actual
     issue of such Common Stock upon conversion or exchange of such Convertible
     Securities.

          (ii) ISSUANCE OF CONVERTIBLE SECURITIES. In case the Corporation shall
     in any manner issue (whether directly or by assumption in a merger or
     otherwise) or sell any Convertible Securities, whether or not the rights to
     exchange or convert thereunder are immediately exercisable, and the price
     per share for which Common Stock is issuable upon such conversion or
     exchange (determined by dividing (A) the total amount received or
     receivable by the Corporation as consideration for the issue or sale of
     such Convertible Securities, plus the minimum aggregate amount of
     additional consideration, if any, payable to the Corporation upon the
     conversion or exchange thereof, by (B) the total maximum number of shares
     of Common Stock issuable upon the conversion or exchange of all such
     Convertible Securities) shall be less than the Conversion Price in effect
     immediately prior to the time of such issue or sale, then the total maximum
     number of shares of Common Stock issuable upon conversion or exchange of
     all such Convertible Securities shall be deemed to have been issued for
     such price per share as of the date of the issue or sale of such
     Convertible Securities and thereafter shall be deemed to be outstanding,
     provided that (A) except as otherwise provided in subparagraph 4(b)(iii)
     below, no adjustment of the Conversion Price shall be made upon the actual
     issue of such Common Stock upon conversion or exchange of such Convertible
     Securities and (B) if any such issue or sale of such Convertible Securities
     is made upon exercise of any Option to purchase any such Convertible
     Securities for which adjustments of the Conversion Price have been or are
     to be made pursuant to other provisions of this paragraph 4(b), no further
     adjustment of the Conversion Price shall be made by reason of such issue or
     sale.

          (iii) CHANGE IN OPTION PRICE OR CONVERSION RATE. Upon the happening of
     any of the following events, namely, if the purchase price provided for in
     any Option referred to in subparagraph 4(b)(i), the additional
     consideration, if any, payable upon the conversion or exchange of any
     Convertible Securities referred to in subparagraph 4(b)(i) or 4(b)(ii), or
     the rate at which any Convertible Securities referred to in subparagraph
     4(b)(i) or 4(b)(ii) are convertible into or exchangeable for Common Stock
     shall change at any time

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     (other than under or by reason of provisions designed to protect against
     dilution), the Conversion Price in effect at the time of such event shall
     forthwith be readjusted to the Conversion Price that would have been in
     effect at such time had such Options or Convertible Securities still
     outstanding provided for such changed purchase price, additional
     consideration or conversion rate, as the case may be, at the time initially
     granted, issued or sold; and on the expiration of any such Option or
     termination of any such right to convert or exchange such Convertible
     Securities, the Conversion Price then in effect hereunder shall forthwith
     be increased to the Conversion Price which would have been in effect at the
     time of such expiration or termination had such Option or Convertible
     Securities, to the extent outstanding immediately prior to such expiration
     or termination, never been issued, and the Common Stock issuable thereunder
     shall no longer be deemed to be outstanding. If the purchase price provided
     for in any such Option referred to in subparagraph 4(b)(i) or the rate at
     which any Convertible Securities referred to in subparagraph 4(b)(i) or
     4(b)(ii) are convertible into or exchangeable for Common Stock shall be
     reduced at any time under or by reason of provisions with respect thereto
     designed to protect against dilution, then, in case of the delivery of
     Common Stock upon the exercise of any such Option or upon conversion or
     exchange of any such Convertible Securities, the Conversion Price then in
     effect hereunder shall forthwith be adjusted to such respective amount as
     would have been obtained had such Option or Convertible Securities never
     been issued as to such Common Stock and had adjustments been made upon the
     issuance of the shares of Common Stock delivered as aforesaid, but only if
     as a result of such adjustment the Conversion Price then in effect
     hereunder is thereby reduced.

          (iv) STOCK DIVIDENDS. In case the Corporation shall declare a dividend
     or make any other distribution upon any stock of the Corporation payable in
     Common Stock, Options or Convertible Securities, any Common Stock, Options
     or Convertible Securities, as the case may be, issuable in payment of such
     dividend or distribution shall be deemed to have been issued or sold
     without consideration (i.e., at a price of zero).

          (v) CONSIDERATION FOR STOCK. In case any shares of Common Stock,
     Options or Convertible Securities shall be issued or sold for cash, the
     consideration received therefor shall be deemed to be the amount received
     by the Corporation therefor, without deduction therefrom of any expenses
     incurred or any underwriting commissions, discounts or concessions paid or
     allowed by the Corporation in connection therewith. In case any shares of
     Common Stock, Options or Convertible Securities shall be issued or sold for
     a consideration other than cash, the amount of the consideration other than
     cash received by the Corporation shall be deemed to be the fair value of
     such consideration as determined in good faith by the Board of Directors of
     the Corporation, without deduction of any expenses incurred or any
     underwriting commissions, discounts or concessions paid or allowed by the
     Corporation in connection therewith. In case any Options shall be issued in
     connection with the issue and sale of other securities of the Corporation,
     together compromising one integral transaction in which no specific
     consideration is allocated to such Options by the parties thereto, such
     Options shall be deemed to have been issued without consideration (I.E., at
     a price of zero).

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          (vi) RECORD DATE. In case the Corporation shall take a record of the
     holders of its Common Stock for the purpose of entitling them (A) to
     receive a dividend or other distribution payable in Common Stock, Options
     or Convertible Securities, or (B) to subscribe for or purchase Common
     Stock, Options or Convertible Securities, then such record date shall be
     deemed to be the date of the issue or sale of the shares of Common Stock
     deemed to have been issued or sold upon the declaration of such dividend or
     the making of such other distribution or the date of the granting of such
     right of subscription or purchase, as the case may be.

          (vii) TREASURY SHARES. The number of shares of Common Stock
     outstanding at any given time shall not include shares owned or held by or
     for the account of the Corporation, and the disposition of any such shares
     shall be considered an issue or sale of Common Stock for the purposes of
     this paragraph 4(b).

     (c)  SUBDIVISION OR COMBINATION OF STOCK. In case the Corporation shall at
any time subdivide its outstanding shares of Common Stock into a greater number
of shares, the Conversion Price in effect immediately prior to such subdivision
shall be proportionately reduced, and conversely, in case the outstanding shares
of Common Stock of the Corporation shall be combined into a smaller number of
shares, the Conversion Price in effect immediately prior to such combination
shall be proportionately increased.

     (d)  CERTAIN ISSUES OF COMMON STOCK EXCEPTED. Anything herein to the
contrary notwithstanding, the Corporation shall not be required to make any
adjustment of the Conversion Price in the case of (i) the issuance by the
Corporation of shares of Common Stock upon conversion of the Series B Preferred
Stock, (ii) the issuance by the Corporation of shares of Common Stock upon
exercise of any options or warrants that were outstanding prior to the date of
issuance of the Series B Preferred Stock or (iii) the grant of options to
purchase Common Stock, and the issuance by the Corporation of Common Stock on
exercise of such options, to officers, employees, directors and consultants of
the Corporation or any subsidiary pursuant to any stock option plans of the
Corporation, whether now existing or hereafter arising.

     5.   REORGANIZATION, RECLASSIFICATION, AND SALE OF ASSETS

     Except with respect to a merger of the Corporation with a wholly owned
subsidiary of Stryker Corporation, if any capital reorganization or
reclassification of the capital stock of the Corporation, including any such
reorganization or reclassification in connection with any merger, consolidation,
or transfer of substantially all of the assets of the Corporation, shall not be
deemed to be a Liquidation pursuant to Section 2 hereof, and if it shall be
effected in such a way that holders of Common Stock shall be entitled to receive
stock, securities, or assets with respect to or in exchange for Common Stock,
then the following shall be an express condition of such reorganization or
reclassification.

     (a)  Lawful and adequate provisions in a form satisfactory to the holders
of a majority of the Series B Preferred Stock, shall be made, whereby each
holder of shares of Series B Preferred Stock shall thereafter have the right to
receive, upon the terms and conditions specified herein and in lieu of the
shares of Common Stock of the Corporation immediately theretofore receivable
upon the conversion of such shares of Series B Preferred Stock, such shares of
stock,

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securities, or assets as may be issued or payable with respect to or in exchange
for a number of outstanding shares of such Common Stock equal to the number of
shares of such stock immediately theretofore so receivable had such
reorganization or reclassification not taken place.

     (b)  Moreover, in any such case, appropriate provision shall be made with
respect to the rights and interests of each such holder of Series B Preferred
Stock to the end that the provisions hereof (including without limitation
provisions for adjustments of the Conversion Price) shall thereafter be
applicable, as nearly as may be, in relation to any shares of stock, securities,
or assets thereafter deliverable upon the exercise of such conversion rights. In
the event of a merger or consolidation of the Corporation as a result of which a
greater or lesser number of shares of common stock of the surviving Corporation
are issuable to holders of the Common Stock of the Corporation outstanding
immediately prior to such merger or consolidation, the Conversion Price in
effect immediately prior to such merger or consolidation shall be adjusted in
the same manner as though there were a subdivision or combination of the
outstanding shares of Common Stock of the Corporation.

     (c)  The Corporation shall not effect any such reorganization,
reclassification, consolidation, merger, or sale unless, prior to the
consummation thereof, the successor corporation (if other than the Corporation)
resulting from such consolidation or merger, or the corporation purchasing such
assets, shall assume by written instrument, in a form satisfactory to the
holders of a majority of the Series B Preferred Stock then outstanding the
obligation to deliver to such holder such shares of stock, securities, or assets
as, in accordance with the foregoing provisions, such holder may be entitled to
receive. Such written instrument shall be promptly mailed or delivered to each
holder of shares of Series B Preferred Stock at the last address of such holder
appearing on the books of the Corporation. In the event of a merger of the
Corporation with a wholly owned subsidiary of Stryker Corporation, the Series B
Preferred Stock shall be cancelled and all rights with respect to such shares
shall cease and terminate.

     6.   OPTIONAL REDEMPTION

     (a)  The Series B Preferred Stock may be redeemed by the Corporation at its
option, at any time, in whole or in part, at the redemption price of $0.783 per
share.

     (b)  The Corporation shall effect any redemption of Series B Preferred
Stock by giving at least twenty (20) days written notice to the holders of
record of the Series B Preferred Stock to be redeemed, such notice to contain
the date fixed for redemption and the place of surrender and payment. On or
after the date fixed for redemption, such holder of Series B Preferred Stock
called for redemption shall surrender to the Corporation his certificates
evidencing the shares to be redeemed at the place designated in such notice, and
shall thereupon be entitled to receive payment of the redemption price for the
shares redeemed. Notwithstanding that the certificates evidencing any Series B
Preferred Stock so called for redemption shall not have been surrendered, all
rights with respect to such shares shall forthwith after such date cease and
terminate except only the right of the holders to receive the redemption price
without interest upon surrender of their certificates therefor.

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     7.   CERTIFICATE AS TO ADJUSTMENTS

     (a)  Upon the occurrence of each adjustment of the Conversion Price
pursuant to Section 4, the Corporation at its expense shall promptly compute
such adjustment and prepare and furnish to each holder of Series B Preferred
Stock a certificate setting forth such adjustment and showing in detail the
facts upon which such adjustment is based, and

     (b)  Upon the written request at any time of any holder of Series B
Preferred Stock, the Corporation shall furnish to such holder a like certificate
setting forth (i) such adjustment, (ii) the Conversion Price at the time in
effect, and (iii) the number of shares of Common Stock which at the time would
be received upon the conversion of the Series B Preferred Stock.

     8.   NOTICE OF RECORD DATES

     In the event:

     (a)  that the Corporation shall take a record of the holders of its Common
Stock for the purpose of entitling them to receive a dividend, or any other
distribution, payable otherwise than in cash; or

     (b)  that the Corporation shall take a record of the holders of its Common
Stock for the purpose of entitling them to subscribe for or purchase any shares
of stock of any class or to receive any other rights; or

     (c)  of any capital reorganization of the Corporation, reclassification of
the capital stock of the Corporation (other than a subdivision or combination of
its outstanding shares of Common Stock), consolidation, or merger of the
Corporation with or into another corporation (other than a merger of the
Corporation with a wholly owned subsidiary of Stryker Corporation) or conveyance
of all or substantially all of the assets of the Corporation to another
corporation; or

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

then, the Corporation shall cause to be mailed to the holders of record of the
outstanding Series B Preferred Stock, at least twenty (20) days prior to the
date specified therein, a notice stating the date on which that record is to be
taken or that event is to take place. The notice shall also specify the date, if
any is to be fixed, as of which holders of Common Stock of record shall be
entitled to exchange their shares of Common Stock for securities or other
property deliverable upon such reclassification, reorganization, consolidation,
merger, conveyance, dissolution, liquidation, or winding up.

     9.   FORM OF NOTICES

     Any notice required to be given pursuant to the terms hereof to the holders
of shares of Series B Preferred Stock shall be deemed given if hand delivered,
delivered by courier, or deposited in the United States mail, postage prepaid,
addressed to each holder of record at such holder's address appearing on the
books of the Corporation.

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<PAGE>

     10.  VOTING

     The shares of Series B Preferred Stock shall be voted equally with the
shares of the Corporation's Common stock at any annual or special meeting of
shareholders of the Corporation, or may act by written consent on the same
basis, with respect to all matters which come before the shareholders. Each
holder of shares of Series B Preferred Stock shall be entitled to the number of
votes equal to the number of whole shares of the Corporation's Common Stock into
which such holder's shares of Series B Preferred Stock are convertible, pursuant
to Sections 3 and 4 above, immediately after the close of business on the record
date fixed for such meeting or the effective date of such written consent.
Notwithstanding the foregoing, the holders of shares of Series B Preferred Stock
shall not be entitled to vote on a merger of the Corporation with a wholly owned
subsidiary of Stryker Corporation.

     11.  AMENDMENTS AND CHANGES

     As long as any of the Series B Preferred Stock shall be issued and
outstanding, the Corporation shall not, without first obtaining the approval (by
vote or written consent, as provided by law) of the holders of a majority of the
Series B Preferred Stock then outstanding:

     (a)  Amend or repeal any provision of, or add any provision to, the
Corporation's Articles of Incorporation (including the terms of the Series B
Preferred Stock set forth herein) which would increase the authorized number of
shares of Series B Preferred Stock or which would alter or change the
preferences, limitations or relative rights of the Series B Preferred Stock;

     (b)  Authorize or issue shares of any class of stock or any bonds,
debentures, notes, or other obligations convertible into or exchangeable for or
having options or rights to purchase any shares of stock of the Corporation
having any preference or priority, as to dividends, assets or otherwise, on a
parity with or superior to any preferences or priority of the Series B Preferred
Stock;

     (c)  Reclassify any outstanding shares into shares having any preference or
priority as to dividends, assets or otherwise superior to or on a parity with
any such preference or priority of Series B Preferred Stock; or

     (d)  Amend this Section 10 of this Amendment.

Nothing in this Section 10 shall require the approval of the holders of the
Series B Preferred Stock to increase the authorized shares of Common Stock, to
issue additional shares of Common Stock, to issue any bonds, debentures, notes,
other obligations convertible into or exchangeable for or having options or
rights to purchase any shares of Common Stock, to issue any options or rights to
purchase any shares of Common Stock, to reclassify any outstanding shares into
shares of Common Stock, or to issue the 383,142 shares of Series B Preferred
Stock. The terms of the Series B Preferred Stock set forth herein can be
amended, subject to the terms of this Section 10, in accordance with the
procedures and requirements for amendments set forth in the Colorado Business
Corporation Act.

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