<PAGE>   1



                                   FORM 10-K/A
                                (AMENDMENT NO. 1)
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


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

Amendment No. 1 to annual report pursuant to Section 13 or 15(d) of the
Securities Act of 1934 for the fiscal year ended December 31, 1999


                         COMMISSION FILE NUMBER: 0-26268

                                  MINIMED INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

            DELAWARE                                     95-4408171
(STATE OF OTHER JURISDICTION OF                       (I.R.S. EMPLOYER
 INCORPORATION OR ORGANIZATION)                      IDENTIFICATION NO.)


          12744 SAN FERNANDO ROAD, SYLMAR, CALIFORNIA      91342
            (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)     (ZIP CODE)

       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (818) 362-5958

        SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT: NONE

           SECURITIES REGISTERED PURSUANT TO SECTION 12(G) OF THE ACT:

                               TITLE OF EACH CLASS
                          COMMON STOCK, $.01 PAR VALUE
                         PREFERRED STOCK PURCHASE RIGHTS

Indicate by check mark whether the registrant (1) has --led all reports required
to be --led by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes [X] No [_]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by referenced in Part III of this Form 10-K or any amendment to
this Form 10-K. [_]

The aggregate market value of the voting stock held by non-affiliates of the
registrant at March 21, 2000 was $3,094,488,657 (based on closing sale price of
$107.50 per share as reported on the Nasdaq National Market). The total number
of shares outstanding of the registrant's Common Stock as of March 21, 2000 was
31,671,496.

                      DOCUMENTS INCORPORATED BY REFERENCE:

Portions of the following document are incorporated herein by reference: Part
III -- The Registrant's Proxy Statement for its 2000 Annual Meeting (the""2000
Proxy").







<PAGE>   2


The undersigned registrant hereby amends Part IV, Item 14(a)3, entitled
"Exhibits", of its Annual Report on Form 10-K for fiscal year 1999 to add
Exhibit 10.34 to the Exhibits. Part IV, Item 14 is restated in its entirety as
follows:


                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENTS, SCHEDULES, AND REPORTS ON FORM 8-K

(a) 1. FINANCIAL STATEMENTS

          See index to financial statements under Item 8 for a list of all
financial statements filed as part of this report.

    2. FINANCIAL STATEMENT SCHEDULES

          The following financial statement schedules are filed as a part of
 this Annual Report on Form 10-K:

                  Schedule II -- Valuation and Qualifying Accounts

          All other schedules are omitted because they are not applicable, not
 required, or because the required information is included in the consolidated
financial statements or notes thereto.

    3. EXHIBITS REQUIRED TO BE FILED BY ITEM 601 OF REGULATION S-K

          The following exhibits are filed as part of this Annual Report on Form
10-K or are incorporated herein by reference:

     2.1  Reorganization Agreement among Robert A. Kusher, Craig Lowy, MiniMed
          Inc. and MiniMed Distribution Corp. dated as of October 19, 1997
          (included as Exhibit 2.1 to the Company's Current Report on Form 8-K
          filed October 20, 1997, which is incorporated herein by reference).

     2.2  Amendment to Reorganization Agreement among Robert A. Kusher, Craig
          Lowy, MiniMed Inc. and MiniMed Distribution Corp. dated as of January
          2, 1998 (included as Exhibit 2.1 to the Company's Current Report on
          Form 8-K filed January 16, 1998, which is incorporated herein by
          reference).

     2.3  Asset Purchase Agreement dated as of October 8, 1998, by and among
          Diabetes Support Systems, Inc., MiniMed Distribution Corp. and MiniMed
          Inc. (included as Exhibit 2.3 to the Company's Annual Report on the
          Form 10-K for the fiscal year ended January 1, 1999 which is
          incorporated herein by reference).

   3(i).1 Amended and Restated Articles of Incorporation (included as Exhibit
          3(i).1 to the Company's Quarterly Report on Form 10-Q for the period
          ended July 2, 1999 which is incorporated herein by reference).

  3(ii).1 Bylaws of MiniMed Inc. (included as Exhibit 3.2 to the Company's
          Registration Statement on Form S-1 (file no. 33-92710) which is
          incorporated herein by reference).

  3(ii).2 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3.3 to the
          Company's 1996 Annual Report on Form 10-K which is incorporated herein
          by reference).

  3(ii).3 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3(ii).1 to
          the Company's Quarterly Report on Form 10-Q for the period ended
          October 2, 1998 which is incorporated herein by reference).







<PAGE>   3

  3(ii).4 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3(ii).1 to
          the Company's Quarterly Report on Form 10-Q for the period ended July
          2, 1999 which is incorporated herein by reference).

  3(ii).5 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3(ii).1 to
          the Company's Quarterly Report on Form 10-Q for the period ended
          October 1, 1999 which is incorporated herein by reference).

  3(ii).6 Amendment to Bylaws of MiniMed Inc. adopted October 13, 1999.

     4.1  Form of Stockholder Rights Agreement (included as Exhibit 3.4 to the
          Company's Registration Statement on Form S-1 (file no. 33-92710) which
          is incorporated herein by reference).

     4.2  Amendment to Rights Agreement effective as of May 1, 1999 by and
          between MiniMed Inc. and Harris Trust Company of California
          (previously filed as Exhibit 4.3 to the Company's Registration
          Statement on Form S-3, Registration No. 333-80527 on June 11, 1999,
          and incorporated herein by reference).

     10.1 First Amendment to Stock Pledge Agreement made by MiniMed in favor of
          ING (U.S.) Capital LLC dated as of June 24, 1999 (included as Exhibit
          10.1 to the Company's Quarterly Report for the period ended October 1,
          1999 which is incorporated herein by reference).

     10.2 Ground Sublease by and between North Campus-University Park
          Development Corporation and First Security Bank, N.A. as Owner Trustee
          dated as of May 18, 1999 (included as Exhibit 10.1 to the Company's
          Quarterly Report on Form 10-Q for the period ended July 2, 1999 which
          is incorporated herein by reference).

     10.3 Parent Guaranty dated as of May 18, 1999 from MiniMed Inc. to First
          Security Bank, N.A. as Trustee (included as Exhibit 10.3 to the
          Company's Quarterly Report on Form 10-Q for the period ended July 2,
          1999 which is incorporated herein by reference).

     10.4 Master Lease between First Security Bank, N.A. as Trustee and MiniMed
          Development Corp. dated May 18, 1999 (included as Exhibit 10.4 to the
          Company's Quarterly Report on Form 10-Q for the period ended July 2,
          1999 which is incorporated herein by reference).

     10.5 Participation Agreement among MiniMed Development Corp. as
          Construction Agent and Lessee, MiniMed Inc. and First Security Bank,
          N.A. as Trustee, et. Al. dated May 18, 1999 (included as Exhibit 10.2
          to the Company's Quarterly Report on Form 10-Q for the period ended
          July 2, 1999 which is incorporated herein by reference).

     10.6 Revolving Credit Agreement dated as of May 18, 1999, among MiniMed
          Inc., the Revolving Credit Lenders and ING (U.S.) Capital LLC
          (included as Exhibit 10.5 to the Company's Quarterly Report on Form
          10-Q for the period ended July 2, 1999 which is incorporated herein by
          reference).

     10.7 Security Agreement dated as of May 18, 1999, among MiniMed Inc.,
          certain subsidiaries of MiniMed Inc. and ING (U.S.) Capital LLC
          (included as Exhibit 10.6 to the Company's Quarterly Report on Form
          10-Q for the period ended July 2, 1999 which is incorporated herein by
          reference).








<PAGE>   4


     10.8 Change of Control Agreement dated August 12, 1999 between MiniMed Inc.
          and Stephen Bowman (included as Exhibit 10.2 to the Company's
          Quarterly Report on Form 10-Q for the period ended October 1, 1999
          which is incorporated herein by reference).

     10.9 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Alfred E. Mann (included as Exhibit 10.1 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).

    10.10 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Terrance H. Gregg (included as Exhibit 10.2 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).

    10.11 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Eric S. Kentor (included as Exhibit 10.3 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).

    10.12 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and David Morley (included as Exhibit 10.4 to the Company's Quarterly
          Report on Form 10-Q for the period ended April 2, 1999 which is
          incorporated herein by reference).

    10.13 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Kevin R. Sayer (included as Exhibit 10.5 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).

    10.14 Third Amended and Restated 1994 Stock Incentive Plan (Incorporated by
          reference from Exhibit 4.1 to Post Effective Amendment No. 2 to the
          Company's Registration Statement on Form S-8 filed by the Company on
          September 16, 1999, registration no. 33-95630).

    10.15 MiniMed Inc. 1994 Stock Incentive Plan -- Form of Option.

    10.16 MiniMed Inc. 1992 Stock Incentive Plan -- Form of Option (included as
          Exhibit 4.4 to the Company's Registration Statement on Form S-1 (file
          no. 33-92710) which is incorporated herein by reference).

    10.17 MiniMed Inc. 1992 Stock Incentive Plan -- Amendment to Form of Option

    10.18 MiniMed Technologies Limited Amended and Restated 1992 Option Plan
          (included as Exhibit 10.17 to the Company's Registration Statement on
          Form S-1 (file no. 33-92710) which is incorporated herein by
          reference).

    10.19 MiniMed Inc. Option Agreement -- Assumption of MiniMed Technologies
          Limited Options (included as Exhibit 10.18 to the Company's
          Registration Statement on Form S-1 (file no. 33-92710) which is
          incorporated herein by reference).

    10.20 License Supply and Distribution Agreement between Eli Lilly and
          Company and MiniMed Inc. dated February 1, 1999 (included as Exhibit
          10.7 to the Company's Quarterly Report on Form 10-Q for the period
          ended July 2, 1999 which is incorporated herein by reference).

    10.21 Amendment to License Supply and Distribution Agreement between Eli
          Lilly and Company and MiniMed Inc. dated as June 28, 1999 (included as
          Exhibit 10.8 to the Company's Quarterly Report on Form 10-Q for the
          period ended July 2, 1999 which is incorporated herein by reference).








<PAGE>   5

    10.22 License Agreement dated February 13, 1980, as amended December 10,
          1990, by and between Applied Physics Laboratory of the Johns Hopkins
          University, Pacesetter Infusion, Ltd. And MiniMed Technologies Limited
          (included as Exhibit 10.24 to the Company's Registration Statement on
          Form S-1 (file no. 33-92710) which is incorporated herein by
          reference).

    10.23 Development, License and Supply Agreement between Elan Pharmaceutical
          Technologies, Elan Pharma International Limited and MiniMed Inc. dated
          June 11, 1999 (included as Exhibit 10.9 to the Company's Quarterly
          Report on Form 10-Q for the period ended July 2, 1999 which is
          incorporated herein by reference).

    10.24 License and Manufacturing Agreement between Elan Pharmaceutical
          Technologies, Elan Pharma International Limited and MiniMed Inc. dated
          June 11, 1999 (included as Exhibit 10.10 to the Company's Quarterly
          Report on Form 10-Q for the period ended July 2, 1999 which is
          incorporated herein by reference).

    10.25 License Agreement dated as of October 1, 1993 by and between MiniMed
          Inc. and Wilson Greatbatch Ltd. (included as Exhibit 10.25 to the
          Company's Registration Statement on Form S-1 (file no. 33-92710) which
          is incorporated herein by reference).

    10.26 Form of Indemnity Agreement between MiniMed Inc. and each of its
          officers and directors (included as Exhibit 10.27 to the Company's
          Registration Statement on Form S-1 (file no. 33-92710) which is
          incorporated herein by reference).

    10.27 MiniMed Inc. Non-Employee Director Deferred Stock Units Plan
          (included as Exhibit 10.14 to the Company's 1995 Annual Report on Form
          10-K which is incorporated herein by reference).

    10.28 MiniMed Inc. Employee Stock Purchase Plan (included as Exhibit 10.15
          to the Company's 1995 Annual Report on Form 10-K which is incorporated
          herein by reference).

    10.29 Lease dated as of August 1, 1995, as amended by Amendment thereto
          dated as of July 1, 1996, by and between MiniMed Inc. and Alfred E.
          Mann (included as Exhibit 10.17 to the Company's 1996 Annual Report on
          Form 10-K which is incorporated herein by reference).

    10.30 Agreement Regarding Implantable Pump Business dated September 1,
          1998, by and between Medical Research Group, LLC, a California limited
          liability company and MiniMed Inc., a Delaware corporation (included
          as Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q which
          is incorporated by reference herein).

    10.31 Implantable Pump License and Distribution Agreement dated September
          1, 1998, by and between Medical Research Group, LLC, a California
          limited liability company and MiniMed Inc., a Delaware corporation
          (included as Exhibit 10.2 to the Company's Quarterly Report on Form
          10-Q which is incorporated by reference herein).

    10.32 Glucose Sensor Option Agreement dated September 1, 1998, by and
          between Medical Research Group, LLC, a California limited liability
          company and MiniMed Inc., a Delaware corporation (included as Exhibit
          10.3 to the Company's Quarterly Report on Form 10-Q which is
          incorporated by reference herein).








<PAGE>   6

    10.33 Guarantee of Alfred E. Mann dated September 1, 1998 (included as
          Exhibit 10.4 to the Company's Quarterly Report on Form 10-Q which is
          incorporated by reference herein).

    10.34 Amendment to Implantable Pump License and Distribution Agreement
          dated June 8, 1999 by and between Medical Research Group, Inc., a
          Delaware corporation and successor in interest to Medical Research
          Group, LLC and MiniMed Inc., a Delaware corporation.

     21.1 Subsidiaries of the Company.

     23.1 Consent of Deloitte & Touche LLP.

     27.1 Financial Data Schedule.









<PAGE>   7

     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Action of 1934, as amended, the registrant has duly caused this Report
to be signed on its behalf by the undersigned, thereunto duly authorized.


                                      MINIMED INC.


Date:  May 22, 2000                   By:      /s/ ALFRED E. MANN
                                      -----------------------------------------
                                      Alfred E. Mann
                                      Chairman of the Board and Chief Executive
                                      Officer (Principal Executive Officer)










<PAGE>   8

                                  EXHIBIT INDEX

Exhibit No.    Description
-----------    -----------

     2.1  Reorganization Agreement among Robert A. Kusher, Craig Lowy, MiniMed
          Inc. and MiniMed Distribution Corp. dated as of October 19, 1997
          (included as Exhibit 2.1 to the Company's Current Report on Form 8-K
          filed October 20, 1997, which is incorporated herein by reference).

     2.2  Amendment to Reorganization Agreement among Robert A. Kusher, Craig
          Lowy, MiniMed Inc. and MiniMed Distribution Corp. dated as of January
          2, 1998 (included as Exhibit 2.1 to the Company's Current Report on
          Form 8-K filed January 16, 1998, which is incorporated herein by
          reference).

     2.3  Asset Purchase Agreement dated as of October 8, 1998, by and among
          Diabetes Support Systems, Inc., MiniMed Distribution Corp. and MiniMed
          Inc. (included as Exhibit 2.3 to the Company's Annual Report on the
          Form 10-K for the fiscal year ended January 1, 1999 which is
          incorporated herein by reference).

   3(i).1 Amended and Restated Articles of Incorporation (included as Exhibit
          3(i).1 to the Company's Quarterly Report on Form 10-Q for the period
          ended July 2, 1999 which is incorporated herein by reference).

  3(ii).1 Bylaws of MiniMed Inc. (included as Exhibit 3.2 to the Company's
          Registration Statement on Form S-1 (file no. 33-92710) which is
          incorporated herein by reference).

  3(ii).2 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3.3 to the
          Company's 1996 Annual Report on Form 10-K which is incorporated herein
          by reference).

  3(ii).3 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3(ii).1 to
          the Company's Quarterly Report on Form 10-Q for the period ended
          October 2, 1998 which is incorporated herein by reference).

  3(ii).4 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3(ii).1 to
          the Company's Quarterly Report on Form 10-Q for the period ended July
          2, 1999 which is incorporated herein by reference).

  3(ii).5 Amendment to Bylaws of MiniMed Inc. (included as Exhibit 3(ii).1 to
          the Company's Quarterly Report on Form 10-Q for the period ended
          October 1, 1999 which is incorporated herein by reference).

  3(ii).6 Amendment to Bylaws of MiniMed Inc. adopted October 13, 1999.

     4.1  Form of Stockholder Rights Agreement (included as Exhibit 3.4 to the
          Company's Registration Statement on Form S-1 (file no. 33-92710) which
          is incorporated herein by reference).

     4.2  Amendment to Rights Agreement effective as of May 1, 1999 by and
          between MiniMed Inc. and Harris Trust Company of California
          (previously filed as Exhibit 4.3 to the Company's Registration
          Statement on Form S-3, Registration No. 333-80527 on June 11, 1999,
          and incorporated herein by reference).

     10.1 First Amendment to Stock Pledge Agreement made by MiniMed in favor of
          ING (U.S.) Capital LLC dated as of June 24, 1999 (included as Exhibit
          10.1 to the Company's Quarterly Report for the period ended October 1,
          1999 which is incorporated herein by reference).








<PAGE>   9

     10.2 Ground Sublease by and between North Campus-University Park
          Development Corporation and First Security Bank, N.A. as Owner Trustee
          dated as of May 18, 1999 (included as Exhibit 10.1 to the Company's
          Quarterly Report on Form 10-Q for the period ended July 2, 1999 which
          is incorporated herein by reference).

     10.3 Parent Guaranty dated as of May 18, 1999 from MiniMed Inc. to First
          Security Bank, N.A. as Trustee (included as Exhibit 10.3 to the
          Company's Quarterly Report on Form 10-Q for the period ended July 2,
          1999 which is incorporated herein by reference).

     10.4 Master Lease between First Security Bank, N.A. as Trustee and MiniMed
          Development Corp. dated May 18, 1999 (included as Exhibit 10.4 to the
          Company's Quarterly Report on Form 10-Q for the period ended July 2,
          1999 which is incorporated herein by reference).

     10.5 Participation Agreement among MiniMed Development Corp. as
          Construction Agent and Lessee, MiniMed Inc. and First Security Bank,
          N.A. as Trustee, et. Al. dated May 18, 1999 (included as Exhibit 10.2
          to the Company's Quarterly Report on Form 10-Q for the period ended
          July 2, 1999 which is incorporated herein by reference).

     10.6 Revolving Credit Agreement dated as of May 18, 1999, among MiniMed
          Inc., the Revolving Credit Lenders and ING (U.S.) Capital LLC
          (included as Exhibit 10.5 to the Company's Quarterly Report on Form
          10-Q for the period ended July 2, 1999 which is incorporated herein by
          reference).

     10.7 Security Agreement dated as of May 18, 1999, among MiniMed Inc.,
          certain subsidiaries of MiniMed Inc. and ING (U.S.) Capital LLC
          (included as Exhibit 10.6 to the Company's Quarterly Report on Form
          10-Q for the period ended July 2, 1999 which is incorporated herein by
          reference).

     10.8 Change of Control Agreement dated August 12, 1999 between MiniMed Inc.
          and Stephen Bowman (included as Exhibit 10.2 to the Company's
          Quarterly Report on Form 10-Q for the period ended October 1, 1999
          which is incorporated herein by reference).

     10.9 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Alfred E. Mann (included as Exhibit 10.1 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).

    10.10 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Terrance H. Gregg (included as Exhibit 10.2 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).

    10.11 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Eric S. Kentor (included as Exhibit 10.3 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).

    10.12 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and David Morley (included as Exhibit 10.4 to the Company's Quarterly
          Report on Form 10-Q for the period ended April 2, 1999 which is
          incorporated herein by reference).

    10.13 Change of Control Agreement dated March 1, 1999 between MiniMed Inc.
          and Kevin R. Sayer (included as Exhibit 10.5 to the Company's
          Quarterly Report on Form 10-Q for the period ended April 2, 1999 which
          is incorporated herein by reference).








<PAGE>   10

    10.14 Third Amended and Restated 1994 Stock Incentive Plan (Incorporated by
          reference from Exhibit 4.1 to Post Effective Amendment No. 2 to the
          Company's Registration Statement on Form S-8 filed by the Company on
          September 16, 1999, registration no. 33-95630).

    10.15 MiniMed Inc. 1994 Stock Incentive Plan -- Form of Option.

    10.16 MiniMed Inc. 1992 Stock Incentive Plan -- Form of Option (included as
          Exhibit 4.4 to the Company's Registration Statement on Form S-1 (file
          no. 33-92710) which is incorporated herein by reference).

    10.17 MiniMed Inc. 1992 Stock Incentive Plan -- Amendment to Form of Option

    10.18 MiniMed Technologies Limited Amended and Restated 1992 Option Plan
          (included as Exhibit 10.17 to the Company's Registration Statement on
          Form S-1 (file no. 33-92710) which is incorporated herein by
          reference).

    10.19 MiniMed Inc. Option Agreement -- Assumption of MiniMed Technologies
          Limited Options (included as Exhibit 10.18 to the Company's
          Registration Statement on Form S-1 (file no. 33-92710) which is
          incorporated herein by reference).

    10.20 License Supply and Distribution Agreement between Eli Lilly and
          Company and MiniMed Inc. dated February 1, 1999 (included as Exhibit
          10.7 to the Company's Quarterly Report on Form 10-Q for the period
          ended July 2, 1999 which is incorporated herein by reference).

    10.21 Amendment to License Supply and Distribution Agreement between Eli
          Lilly and Company and MiniMed Inc. dated as June 28, 1999 (included as
          Exhibit 10.8 to the Company's Quarterly Report on Form 10-Q for the
          period ended July 2, 1999 which is incorporated herein by reference).

    10.22 License Agreement dated February 13, 1980, as amended December 10,
          1990, by and between Applied Physics Laboratory of the Johns Hopkins
          University, Pacesetter Infusion, Ltd. And MiniMed Technologies Limited
          (included as Exhibit 10.24 to the Company's Registration Statement on
          Form S-1 (file no. 33-92710) which is incorporated herein by
          reference).

    10.23 Development, License and Supply Agreement between Elan Pharmaceutical
          Technologies, Elan Pharma International Limited and MiniMed Inc. dated
          June 11, 1999 (included as Exhibit 10.9 to the Company's Quarterly
          Report on Form 10-Q for the period ended July 2, 1999 which is
          incorporated herein by reference).

    10.24 License and Manufacturing Agreement between Elan Pharmaceutical
          Technologies, Elan Pharma International Limited and MiniMed Inc. dated
          June 11, 1999 (included as Exhibit 10.10 to the Company's Quarterly
          Report on Form 10-Q for the period ended July 2, 1999 which is
          incorporated herein by reference).

    10.25 License Agreement dated as of October 1, 1993 by and between MiniMed
          Inc. and Wilson Greatbatch Ltd. (included as Exhibit 10.25 to the
          Company's Registration Statement on Form S-1 (file no. 33-92710) which
          is incorporated herein by reference).








<PAGE>   11

    10.26 Form of Indemnity Agreement between MiniMed Inc. and each of its
          officers and directors (included as Exhibit 10.27 to the Company's
          Registration Statement on Form S-1 (file no. 33-92710) which is
          incorporated herein by reference).

    10.27 MiniMed Inc. Non-Employee Director Deferred Stock Units Plan
          (included as Exhibit 10.14 to the Company's 1995 Annual Report on Form
          10-K which is incorporated herein by reference).

    10.28 MiniMed Inc. Employee Stock Purchase Plan (included as Exhibit 10.15
          to the Company's 1995 Annual Report on Form 10-K which is incorporated
          herein by reference).

    10.29 Lease dated as of August 1, 1995, as amended by Amendment thereto
          dated as of July 1, 1996, by and between MiniMed Inc. and Alfred E.
          Mann (included as Exhibit 10.17 to the Company's 1996 Annual Report on
          Form 10-K which is incorporated herein by reference).

    10.30 Agreement Regarding Implantable Pump Business dated September 1,
          1998, by and between Medical Research Group, LLC, a California limited
          liability company and MiniMed Inc., a Delaware corporation (included
          as Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q which
          is incorporated by reference herein).

    10.31 Implantable Pump License and Distribution Agreement dated September
          1, 1998, by and between Medical Research Group, LLC, a California
          limited liability company and MiniMed Inc., a Delaware corporation
          (included as Exhibit 10.2 to the Company's Quarterly Report on Form
          10-Q which is incorporated by reference herein).

    10.32 Glucose Sensor Option Agreement dated September 1, 1998, by and
          between Medical Research Group, LLC, a California limited liability
          company and MiniMed Inc., a Delaware corporation (included as Exhibit
          10.3 to the Company's Quarterly Report on Form 10-Q which is
          incorporated by reference herein).

    10.33 Guarantee of Alfred E. Mann dated September 1, 1998 (included as
          Exhibit 10.4 to the Company's Quarterly Report on Form 10-Q which is
          incorporated by reference herein).


    10.34 Amendment to Implantable Pump License and Distribution Agreement
          dated June 8, 1999 by and between Medical Research Group, Inc., a
          Delaware corporation and successor in interest to Medical Research
          Group, LLC and MiniMed Inc., a Delaware corporation.


     21.1 Subsidiaries of the Company.

     23.1 Consent of Deloitte & Touche LLP.

     27.1 Financial Data Schedule.