SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13D


                    Under the Securities Exchange Act of 1934
                                (Amendment No.3)


                       Meridian Medical Technologies, Inc.
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                                (Name of Issuer)

                          COMMON STOCK, $.10 par value
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                         (Title of Class of Securities)

                                    589658103
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                                 (CUSIP Number)


       Robert G. Foster, 4 Milk Street, Portland, ME 04101 (207) 780-0904
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(Name, Address, Telephone  Number of Persons Authorized  to  Receive Notices and
Communications)

                                  April 1, 2002
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             (Date of Event which Requires Filing of this Statement)


If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Note: Six copies of this statement, including all exhibits, should be filed with
the  Commission.  See Rule  13d-1(a) for other  parties to whom copies are to be
sent.


                                Page 1 of   Pages

     1        NAME OF REPORTING PERSON
              S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSON

                     BioVenture Partners Limited Partnership

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     2        CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*        (a) [ ]
                                                                       (b) [X]

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     3        SEC USE ONLY

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     4        SOURCE OF FUNDS*

              Not Applicable
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     5        CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS              [ ]
              REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)


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     6        CITIZENSHIP OR PLACE OF ORGANIZATION                      Delaware

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      NUMBER OF SHARES                   7          SOLE VOTING POWER
 BENEFICIALLY OWNED BY EACH
   REPORTING PERSON WITH                                 0
                                ------------------------------------------------
                                         8          SHARED VOTING POWER

                                                         48,271
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                                         9          SOLE DISPOSITIVE POWER

                                                         0
                                ------------------------------------------------
                                        10          SHARED DISPOSITIVE POWER

                                                        48,271
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     11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

               48,271
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     12        CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
               SHARES*                                                     [ ]

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     13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

               1.1%
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     14        TYPE OF REPORTING PERSON*

               PN
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Schedule 13D                             BioVenture Partners Limited Partnership

ITEM 2.  IDENTITY AND BACKGROUND

     The reporting person's name is BioVenture Partners Limited  Partnership,  a
Delaware limited partnership.  The reporting person's principal business is that
of general  partner of two venture  capital funds,  Commonwealth  BioVentures IV
Limited   Partnership,   a  Delaware  limited   partnership   ("Fund  IV"),  and
Commonwealth  BioVentures V Limited Partnership,  a Delaware limited partnership
("Fund  V").  The  general  partner  of the  reporting  person  is  Commonwealth
BioVentures,  Inc., a  Massachusetts  corporation  ("CBI").  The  President  and
principal  stockholder of CBI is Robert  Foster,  a U.S.  citizen.  The business
address for each of the entities and the individual  identified  above is 4 Milk
Street, Portland, ME 04101.

     During  the  last  five  years,  none  of the  entities  or the  individual
identified  in the  paragraph  above  have  been  (i)  convicted  in a  criminal
proceeding  (excluding  traffic  violations and similar  misdemeanors) or (ii) a
party to a civil  proceeding of a judicial or  administrative  body of competent
jurisdiction  and as a result of such  proceeding  has been or is  subject  to a
judgment,  decree or final order enjoining future  violations of, or prohibiting
or mandating  activities subject to, federal or state securities laws or finding
any violation with respect to such laws.


ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER.

     The number of shares of the Issuer's common stock that the reporting person
may be  deemed  to  beneficially  own is  48,271  (the  "Shares"),  representing
approximately  1.1% of the reported  outstanding  shares of the Issuer's  common
stock as of February 28, 2002. By virtue of the relationships  described in Item
2 above among the reporting  person,  Fund IV, Fund V, CBI and Mr.  Foster,  the
reporting  person  shares  the power to vote and  dispose  of (i)  10,484 of the
Shares held in the name of Fund IV with Fund IV, CBI and Mr. Foster, (ii) 36,297
of the  Shares  held in the name of Fund V with Fund V, CBI and Mr.  Foster  and
(iii) 1,490 of the Shares held in the  reporting  person's name with CBI and Mr.
Foster.  The reporting person ceased to be a beneficial owner of more than 5% of
the Issuer's  common stock between  November 30, 2001 and February 28, 2002 as a
result of a reported  increase in the aggregate number of outstanding  shares of
the Issuer's common stock between those two dates.

     Fund V, a venture  fund, is in its last year of existence and has commenced
liquidating  fund investments in contemplation of its termination and winding up
of its business. On April 1, 2002, Fund V distributed to its limited partners an
aggregate of 150,000 shares of the Issuer's common stock  registered in Fund V's
name in accordance with the terms of Fund V's limited partnership agreement (the
"Distribution").  The  Distribution  was  effected  solely  as part of Fund  V's
investment liquidation process and was not influenced by or otherwise based upon
the  reporting  person's  evaluation  of the  Issuer's  current  or  anticipated
business, financial, or stock price performance.




                                    SIGNATURE

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


                                        BIOVENTURE PARTNERS
                                        LIMITED PARTNERSHIP
                                        By: Commonwealth Bioventures, Inc. its
                                        general partner


April 2, 2002                           By: /s/ Robert G. Foster,
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                                            Robert G. Foster, President