UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549



                                  SCHEDULE 13G

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                (AMENDMENT NO. )*


                        BEI MEDICAL SYSTEMS COMPANY, INC.
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                                (Name of Issuer)

                                  Common Stock
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                         (Title of Class of Securities)

                                    05538E109
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                                 (CUSIP Number)

                                    12/31/01
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             (Date of Event Which Requires Filing of this Statement)



Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [ X ]    Rule 13d-1(b)

         [   ]    Rule 13d-1(c)

         [   ]    Rule 13d-1(d)


         *The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

         The information required in the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).





                                  SCHEDULE 13G

CUSIP NO. 05538E109


                                                                                           
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(1)       NAMES OF REPORTING PERSONS.
      I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

         BANK ONE CORPORATION, I.R.S. NO. 31-0738296

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

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(3)       SEC USE ONLY

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(4)       CITIZENSHIP OR PLACE OF ORGANIZATION                                                        Illinois
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             NUMBER OF                      (5)  SOLE VOTING POWER                                     506,668

              SHARES
                                            -----------------------------------------------------------------------
           BENEFICIALLY                     (6)  SHARED VOTING POWER                                         0

             OWNED BY
                                            -----------------------------------------------------------------------
               EACH                         (7)  SOLE DISPOSITIVE POWER                                506,668

             REPORTING
                                            -----------------------------------------------------------------------
              PERSON                        (8)  SHARED DISPOSITIVE POWER                                    0


               WITH:
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(9)      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON                                  506,668

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(10)     CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
                                                                                                           [   ]
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(11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)                                               5.2%

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(12)  TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)                                                          HC

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                                  SCHEDULE 13G


                                                                     
Item 1 (a).       Name of Issuer:                                 BEI MEDICAL SYSTEMS COMPANY, INC

Item 1 (b).       Address of Issuer's Principal Executive Offices:              100 Hollister Road
                                                                                Teterboro, NJ  07608

Item 2 (a).       Name of Person Filing:                                        BANK ONE CORPORATION

Item 2 (b).       Address of Principal Office or, if none, Residence:           One First National Plaza
                                                                                Chicago, IL  60670

Item 2 (c).       Citizenship:                                                  Not Applicable.

Item 2 (d).       Title of Class of Securities:                                 Common Stock

Item 2 (e).       CUSIP Number:                                                 05538E109

Item 3.           If this Statement is Filed Pursuant to Rules 240.13d-1 (b), or 240.13d-2 (b) or (c), check
                  whether the person filing is a:

                  (a) [   ]       Broker or dealer registered under Section 15 of the Act;

                  (b) [   ]       Bank as defined in section 3(a)(6) of the Act;

                  (c) [   ]       Insurance company as defined in section 3(a)(19) of the Act;

                  (d) [   ]       Investment company registered under section 8 of the Investment Company Act;

                  (e) [   ]       An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);

                  (f) [   ]       An employee benefit plan or endowment fund in accordance with Section
                                  240.13d-1(b)(1)(ii)(F);

                  (g) [ X ]       A parent holding company or control person in accordance with Section
                                  240.13d-1(b)(ii)(G);

                  (h) [   ]       A savings association as defined in Section 3(b) of the Federal Deposit
                                  Insurance Act (12 U.S.C. 1813);

                  (i) [   ]       A church plan that is excluded from the definition of an investment company
                                  under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

                  (j) [   ]       Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

                  If this statement is filed pursuant to Rule 13d-1(c), check this box. [ ]






                                  SCHEDULE 13G


                                                                             
Item 4. Ownership:

        (a)      Amount Beneficially Owned:                                           506,668

        (b)      Percent of Class:                                                       5.2%

        (c)      Number of shares as to which the person has:

                (i)      sole power to vote or direct the vote:                       506,668

                (ii)     shared power to vote or direct the vote:                           0

                (iii)    sole power to dispose or direct the disposition of:          506,668

                (iv)     shared power to dispose or direct the disposition of:              0

Item 5.           Ownership of Five Percent or Less of a Class.

                  If this statement is being filed to report the fact that as of
                  the date hereof the reporting person has ceased to be the
                  beneficial owner of more than five percent of the class of
                  securities, check the following:
                                                                                         [   ]

Item 6.           Ownership of More Than Five Percent on Behalf of Another Person.

                  Not Applicable.

Item 7.           Identification and Classification of the Subsidiary which
                  acquired the Security being Reported on by the Parent Holding
                  Company.

                  Banc One Equity Capital SBIC Fund II, L.L.C.

Item 8.           Identification and Classification of Members of the Group.

                  Not Applicable.

Item 9.           Notice of Dissolution of Group.

                  Not Applicable.






                                  SCHEDULE 13G

Item 10.  Certification.

          By signing below, I certify that, to the best of my knowledge
          and belief, the securities referred to above were acquired and
          are held in the ordinary course of business and were not
          acquired and are not held for the purpose of or with the
          effect of changing or influencing the control of the issuer of
          the securities and were not acquired and are not held in
          connection with or as a participant in any transaction having
          that purpose or effect.

          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.

          Dated:  February 13, 2002

          BANK ONE CORPORATION

          By:      /s/ David J. Kundert
                   -----------------------------------------------------
                   Name:      David J. Kundert
                   Title:     Executive Vice President