EXHIBIT 10.15

SILICON VALLEY BANK

                           AMENDMENT TO LOAN AGREEMENT


BORROWER:         VASCULAR SOLUTIONS, INC.

DATE:             DECEMBER 9, 2004


         THIS AMENDMENT TO LOAN AGREEMENT ("Amendment") is entered into between
Silicon Valley Bank ("Silicon") and the borrower named above ("Borrower"), with
reference to the following facts:

         A. Silicon and Borrower are parties to that certain Loan and Security
Agreement, with an Effective Date of December 31, 2003 (as amended, the "Loan
Agreement"). (The Loan Agreement and all other present and future documents,
instruments and agreements relating thereto are referred to herein collectively
as the "Loan Documents". Capitalized terms used in this Agreement which are not
defined herein shall have the meanings set forth in the Loan Agreement.)

         B. The parties desire to amend the Loan Agreement as set forth in this
Amendment.

         The parties agree as follows:

         1. REVOLVING MATURITY DATE. The definition of "Revolving Maturity
Date," which is contained in Section 13.1 of the Loan Agreement, is hereby
amended from "December 31, 2004" to "December 29, 2005".

         2. COMMITTED REVOLVING LINE. The amount "$3,000,000" contained in the
definition of "Committed Revolving Line," which is contained in Section 13.1 of
the Loan Agreement, is hereby amended from said "$3,000,000" to "$5,000,000.

         3. INTEREST RATE. The first full sentence of Section 2.3(a) of the Loan
Agreement - Interest Rate - reads as follows:

                  Revolving Advances accrue interest on the outstanding
                  principal balance at a PER ANNUM rate equal to the greater of
                  (i) 4.50% or (ii) one-half of one percentage point (0.50%)
                  above the Prime Rate.

Said sentence is hereby amended to read as follows:

                  Revolving Advances accrue interest on the outstanding
                  principal balance at a PER ANNUM rate equal to one-half of one
                  percentage point (0.50%) above the Prime Rate.
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         4. FACILITY FEE. The amount "$15,000" contained in the first full
sentence of Section 2.4(a) of the Loan Agreement is hereby amended to read
"$25,000."

         5. UNUSED LINE FEE. The amount "$1,250" contained in the first full
sentence of Section 2.4(c) of the Loan Agreement is hereby amended to read
"$2,125."

         6. BORROWING BASE. Subpart "B" of the definition of "Borrowing Base"
contained in Section 13.1 of the Loan Agreement reads as follows:

                  (B) up to 25% of Eligible Inventory, provided that Advances
                  hereunder based on Eligible Inventory shall at no time exceed
                  the lesser of (i) $1,000,000 or (ii) 33% of the amount from
                  clause (A) above, as applicable from time to time.

Said subpart "B" is hereby amended to read as follows:

                  (B) up to 25% of Eligible Inventory, provided that Advances
                  hereunder based on Eligible Inventory shall at no time exceed
                  the lesser of (i) $1,500,000 or (ii) 33% of the amount of
                  Eligible Accounts, as applicable from time to time.

         7. TANGIBLE NET WORTH. Section 6.7 of the Loan Agreement reads as
follows:

                  Borrower will maintain at all times:

                  (i)      TANGIBLE NET WORTH. A Tangible Net Worth of at least
                           $8,000,000.

                  (ii)     LIQUIDITY COVERAGE. A ratio of (A) unrestricted
                           domestic cash (and equivalents) plus the product of
                           the aggregate amount of Eligible Accounts multiplied
                           by the applicable advance rate for the making of
                           Revolving Advances hereunder with respect to Eligible
                           Accounts, divided by (B) the aggregate amount of
                           Obligations outstanding hereunder, of not less than
                           1.25 to 1.00.

Said Section 6.7 is hereby amended to read as follows:

                  Borrower will maintain at all times:

                  (i)      TANGIBLE NET WORTH. A Tangible Net Worth of more than
                           $11,000,000.

                  (ii)     LIQUIDITY COVERAGE. A ratio of (A) unrestricted
                           domestic cash (and equivalents) plus the amount of
                           Eligible Accounts, divided by (B) the aggregate
                           amount of Obligations outstanding hereunder, of not
                           less than 1.25 to 1.00.

         8. REPRESENTATIONS TRUE. Borrower represents and warrants to Silicon
that all representations and warranties set forth in the Loan Agreement, as
amended hereby, are true and correct.

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         9. GENERAL PROVISIONS. This Amendment, the Loan Agreement, any prior
written amendments to the Loan Agreement signed by Silicon and Borrower, and the
other Loan Documents set forth in full all of the representations and agreements
of the parties with respect to the subject matter hereof and supersede all prior
discussions, representations, agreements and understandings between the parties
with respect to the subject hereof. Except as herein expressly amended, all of
the terms and provisions of the Loan Agreement, and all other Loan Documents
shall continue in full force and effect and the same are hereby ratified and
confirmed. This Amendment is part of the Loan Agreement and its terms are
incorporated herein.


BORROWER:                                 SILICON:

VASCULAR SOLUTIONS, INC.                  SILICON VALLEY BANK


BY                                        BY
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     President or Vice President          TITLE
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