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



                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                              (Amendment No. 10 )*


                           Merit Medical Systems, Inc.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                           Common Stock, No Par Value
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   589889-10-4
                                  -------------
                                  (CUSIP Number)

                                December 31, 2000
                    -----------------------------------------
             (Date of Event Which Requires Filing of this Statement)

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

         [ ]        Rule 13d-1(b)
         [ ]        Rule 13d-1(c)
         [X]        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).


                                       1

CUSIP No. 589889-10-4 - -------------------------------------------------------------------------------- 1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). Fred P. Lampropoulos - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ] - -------------------------------------------------------------------------------- 3. SEC Use Only ----------------------------------------------------------- - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization United States ---------------- - -------------------------------------------------------------------------------- Number of 5. Sole Voting Power 834,248.493 Shares Bene- ficially 6. Shared Voting Power None Owned by Each Reporting 7. Sole Dispositive Power 834,248.493 Person With: 8. Shared Dispositive Power None - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 834,248.493 ------------ 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ] 11. Percent of Class Represented by Amount in Row (9) 10.3% --------- 12. Type of Reporting Person (See Instructions) IN ----- 2

CUSIP No. 589889-10-4 - -------------------------------------------------------------------------------- Item 1. (a) Name of Issuer: Merit Medical Systems, Inc. (the "Company") (b) Address of Principal Executive Offices: 1600 West Merit Parkway, South Jordan, UT 84095 Item 2. (a) Name of Person Filing: Fred P. Lampropoulos (the"Reporting Person") (b) Address of Principal Business Office, if none, Residence: 1600 West Merit Parkway, South Jordan, UT 84095 (c) Citizenship: United States (d) Title of Class of Securities: Common Stock, No Par Value (the "Commonn Stock") (e) CUSIP Number: 589889-10-4 Item 3. This statement is not filed pursuant to Sections 240.13d-1(b) or 240.13d-2(b) or (c). Item 4. Ownership (a) Amount Beneficially Owned: As of December 31, 2000, the Reporting Person was the beneficial owner of 834,248.493 shares of the Common Stock, which included 16,547.493 shares owned by the Reporting Person pursuant to the Company's 401(k) Plan, based upon the most recent plan statement timely distributed, and 332,500 shares that the Reporting Person had the right to acquire pursuant to options that were exercisable as of December 31, 2000 or exercisable within the sixty (60) day period following December 31, 2000. (b) Percent of Class: 10.3% (c) Number of shares as to which the Reporting Person has: (i) Sole power to vote or to direct the vote: 834,248.493 shares of the Common Stock (ii) Shared power to vote or to direct the vote: None (iii) Sole power to dispose or to direct the disposition of: 834,248.493 shares of the Common Stock (iv) Shared power to dispose or to direct the disposition of: None 3

CUSIP No. 589889-10-4 - -------------------------------------------------------------------------------- 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 Reporting on By the Parent Holding Company Not applicable. Item 8. Identification and Classification of Members of the Group Not applicable Item 9. Notice of Dissolution of Group Not applicable. Item 10. Certification Not applicable. 4

CUSIP No. 589889-10-4 - -------------------------------------------------------------------------------- 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. Date: February 12, 2001 By /s/ Fred P. Lampropoulos - --------------------------- Fred P. Lampropouos 5