<SUBMISSION>
<ACCESSION-NUMBER>0001047469-99-000745
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>19981231
<FILING-DATE>19990111
<SUBJECT-COMPANY>
<COMPANY-DATA>
<CONFORMED-NAME>CIRCON CORP
<CIK>0000719727
<ASSIGNED-SIC>3845
<IRS-NUMBER>953079904
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-12025
<FILM-NUMBER>99504327
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>6500 HOLLISTER AVE
<CITY>SANTA BARBARA
<STATE>CA
<ZIP>93111
<PHONE>8059670404
</BUSINESS-ADDRESS>
</SUBJECT-COMPANY>
<REPORTING-OWNER>
<COMPANY-DATA>
<CONFORMED-NAME>TYCO INTERNATIONAL LTD /BER/
<CIK>0000833444
<ASSIGNED-SIC>3569
<RELATIONSHIP>OWNER
<IRS-NUMBER>000000000
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>4
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>THE GIBBONS BUILDING
<STREET2>10 QUEENS STREET SUITE 301
<CITY>HAMILTON HM 12 BERMU
<STATE>D0
<PHONE>4412928674
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O TYCO INTERNATIONAL (US) INC
<STREET2>ONE TYCO PARK
<CITY>EXETER
<STATE>NH
<ZIP>03833
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>ADT LIMITED
<DATE-CHANGED>19930601
</FORMER-COMPANY>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<DESCRIPTION>FORM 4
<TEXT>

<PAGE>

<TABLE>
<CAPTION>
--------                                  UNITED STATES SECURITIES AND EXCHANGE COMMISSION             -----------------------------
 FORM 4                                                WASHINGTON, D.C. 20549                                   OMB APPROVAL        
--------                                                                                               -----------------------------
/X/ CHECK THIS BOX IF NO                    STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP                OMB NUMBER:       3235-0287 
    LONGER SUBJECT TO                                                                                   EXPIRES: SEPTEMBER 30, 1998 
    SECTION 16.  FORM 4 OR    Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,   ESTIMATED AVERAGE BURDEN    
    FORM 5 OBLIGATIONS MAY       Section 17(a) of the Public Utility Holding Company Act of 1935 or     HOURS PER RESPONSE .... 0.5 
    CONTINUE.  SEE                       Section 30(f) of the Investment Company Act of 1940           -----------------------------
    INSTRUCTION 1(b).
(Print or Type Responses)
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<S><C>
1. Name and Address of Reporting Person*     2. Issuer Name AND Ticker or Trading Symbol     6. Relationship of Reporting Person(s)
                                                                                                 to Issuer (Check all applicable)
                                                                                                    Director          X  10% Owner
   Tyco International Ltd.                              Circon Corporation                     ----                 ----
---------------------------------------------------------------------------------------------       Officer (give        Other
    (Last)        (First)        (Middle)    3. IRS or Social Security  4. Statement for       ----          title  ---- (specify
                                                Number of Reporting        Month/Year                        below)       below
   c/o Tyco International (US) Inc.             Person (Voluntary)                            -------------------------------------
   One Tyco Park                                                               12/98
--------------------------------------------                            --------------------- 7. Individual or Joint/Group Filing
                  (Street)                                              5. If Amendment,          (Check Applicable Line)
                                                                           Date of Original   _X_Form filed by One Reporting Person
                                                                           (Month/Year)       ___Form filed by More than One
    Exeter,        NH               03833                                                        Reporting Person
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    (City)       (State)            (Zip)        TABLE I - NON-DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
------------------------------------------------------------------------------------------------------------------------------------
1. Title of Security               2. Trans-   3. Trans-     4. Securities Acquired (A)    5. Amount of     6. Owner-   7. Nature
   (Instr. 3)                         action      action        or Disposed of (D)            Securities       ship        of In-
                                      Date        Code          (Instr. 3, 4 and 5)           Beneficially     Form:       direct
                                                  (Instr. 8)                                  Owned at         Direct      Bene-
                                     (Month/                                                  End of           (D) or      ficial
                                      Day/     -------------------------------------------    Month            Indirect    Owner-
                                      Year)                               (A) or                               (I)         ship
                                                Code    V       Amount    (D)     Price       (Instr. 3        (Instr. 4) (Instr. 4)
                                                                                              and 4)
------------------------------------------------------------------------------------------------------------------------------------
Common Stock, par value $.01 
 per share                          12/22/98     S            1,959,348     (D)   $14.50           0

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Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.                   (Over)
* If the form is filed by more than one reporting person, SEE Instruction 4(b)(v).                                   SEC 1474 (7-97)

                              POTENTIAL PERSONS WHO ARE TO RESPOND TO THE COLLECTION OF INFORMATION 
                              CONTAINED IN THIS FORM ARE NOT REQUIRED TO RESPOND UNLESS THE FORM 
                              DISPLAYS A CURRENTLY VALID OMB CONTROL NUMBER.

</TABLE>

<PAGE>

<TABLE>
<CAPTION>

FORM 4 (CONTINUED)          TABLE II - DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
                                   (E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES)

------------------------------------------------------------------------------------------------------------------------
1. Title of Derivative Security     2. Conver-   3. Trans-   4. Transac-   5. Number of Deriv-      6. Date Exer-
   (Instr. 3)                          sion or      action      tion Code     ative Securities Ac-     cisable and Ex-
                                       Exercise     Date        (Instr. 8)    quired (A) or Dis-       piration Date
                                       Price of    (Month/                    posed of (D)             (Month/Day/
                                       Deriv-       Day/                      (Instr. 3, 4, and 5)     Year)
                                       ative        Year)
                                       Security

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

                                                                                                     Date      Expira-
                                                             --------------------------------------  Exer-     tion
                                                                                                     cisable   Date
                                                              Code    V        (A)        (D)
<S><C>
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<CAPTION>

------------------------------------------------------------------------------------------
7. Title and Amount of Under-       8. Price   9. Number     10. Owner-     11. Nature
   lying Securities                    of         of Deriv-      ship           of In-
   (Instr. 3 and 4)                    Deriv-     ative          Form           direct
                                       ative      Securi-        of De-         Bene-
                                       Secur-     ties           rivative       ficial
                                       ity        Bene-          Secu-          Own-
                                       (Instr.    ficially       rity:          ership
                                       5)         Owned          Direct         (Instr. 4)
                                                  at End         (D) or         
                     Amount or                    of             Indi-
       Title         Number of                    Month          rect (I)
                     Shares                       (Instr. 4)     (Instr. 4)
<S><C>
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Explanation of Responses:

                                                                                 **Signature of Reporting Person
                                                                                      Tyco International Ltd.


                                                                                      By: /s/ Mark H. Swartz              1/8/99
                                                                                          ----------------------------  -----------
                                                                                          Mark H. Swartz                   Date
                                                                                          Executive Vice President and
**Intentional misstatements or omissions of facts constitute                              Chief Financial Officer
  Federal Criminal Violations.  SEE 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed.
      If space is insufficient, SEE Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained 
in this form are not required to respond unless the form displays a currently 
valid OMB Number.
                                                                                                                              Page 2
                                                                                                                     SEC 1474 (7-97)
</TABLE>

</TEXT>
</DOCUMENT>
</SUBMISSION>
