Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
EASTON HUNT CAPITAL PARTNERS LP
  2. Issuer Name and Ticker or Trading Symbol
CARDIOVASCULAR SYSTEMS INC [NONE]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
641 LEXINGTON AVE
3. Date of Earliest Transaction (Month/Day/Year)
02/25/2009
(Street)

NEW YORK, NY 10022
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/25/2009   C   616,197 A (1) 616,197 D  
Common Stock 02/25/2009   C   616,197 A (1) 616,197 I Held by Easton Capital Partners, L.P.
Common Stock 02/25/2009   U   616,197 D (2) 0 D  
Common Stock 02/25/2009   U   616,197 D (2) 0 I Held by Easton Capital Partners, L.P.

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Series A Conv Preferred Stock (1) 02/25/2009   C     616,197   (4)   (4) Common Stock 616,197 $ 0 0 D  
Warrant (3) 02/25/2009   C     87,499 07/19/2006 07/19/2011 Series A Conv Preferred Stock 87,499 $ 0 0 D  
Warrant (3) 02/25/2009   C   87,499   07/19/2006 07/19/2011 Common Stock 87,499 $ 0 87,499 D  
Warrant (5) 02/25/2009   U     87,499   (5)   (5) Common Stock 87,499 $ 0 0 D  
Warrant (5) 02/25/2009   U     166,667   (5)   (5) Common Stock 166,667 $ 0 0 D  
Warrant (5) 02/25/2009   U     234,339   (5)   (5) Common Stock 234,339 $ 0 0 D  
Series A Conv Preferred Stock (1) 02/25/2009   C     616,197   (4)   (4) Common Stock 616,197 $ 0 0 I Held by Easton Capital Partners, L.P.
Warrant (3) 02/25/2009   C     87,499 07/19/2006 07/19/2011 Series A Conv Preferred Stock 87,499 $ 0 0 I Held by Easton Capital Partners, L.P.
Warrant (3) 02/25/2009   C   87,499   07/19/2006 07/19/2011 Common Stock 87,499 $ 0 87,499 I Held by Easton Capital Partners, L.P.
Warrant (5) 02/25/2009   U     87,499   (5)   (5) Common Stock 87,499 $ 0 0 I Held by Easton Capital Partners, L.P.
Warrant (5) 02/25/2009   U     234,339   (5)   (5) Common Stock 234,339 $ 0 0 I Held by Easton Capital Partners, L.P.

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
EASTON HUNT CAPITAL PARTNERS LP
641 LEXINGTON AVE
NEW YORK, NY 10022
    X    

Signatures

 /s/ Carlye S. Landin as Attorney-in-Fact for Easton Capital Partners, LP pursuant to Power of Attorney previously filed.   02/27/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Immediately prior to the consummation of the merger between the issuer and Replidyne, Inc., each share of Series A convertible preferred stock was converted into approximately 1.005 shares of the issuer's common stock.
(2) Disposed of pursuant to a merger agreement among the issuer, Responder Merger Sub, Inc. and Replidyne, Inc. (now known as "Cardiovascular Systems, Inc."), pursuant to which each share of the issuer's common stock was converted into 0.647 shares of common stock of Replidyne, Inc.
(3) Immediately prior to the consummation of the merger between the issuer and Replidyne, Inc., each Series A convertible preferred stock warrant was converted into a warrant to purchase the issuer's common stock; each Series A convertible preferred share covered by the warrants was converted into approximately 1.005 shares of the issuer's common stock and the exercise price of each warrant was adjusted by multiplying the number of Series A shares covered by the warrant by the warrant exercise price, and dividing by the total number of the issuer's common shares subject to the converted Series A warrant.
(4) Each share of Series A convertible preferred stock was convertible at any time, at the holder's election, into approximately 1.005 shares of common stock and had no expiration date.
(5) Disposed of pursuant to a merger agreement among the issuer, Responder Merger Sub, Inc. and Replidyne, Inc. (now known as "Cardiovascular Systems, Inc."), pursuant to which each of the issuer's common stock warrants was assumed by Replidyne, Inc. and became exercisable to purchase shares of Replidyne, Inc. common stock; each share covered by the issuer's common stock warrants was converted into 0.647 shares of common stock of Replidyne, Inc., and the exercise price of each warrant was adjusted by dividing the pre-merger exercise price by 0.647 and rounding up to the nearest cent.

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