Exhibit 10.2
 AMENDMENT NO. 5 TO STOCKHOLDERS AGREEMENT
 THIS AMENDMENT NO. 5 TO STOCKHOLDERS AGREEMENT Amendment No. 5 Company
 RECITALS
 Stockholders Agreement
       1




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1.
    
    Capitalized terms not defined herein shall have the meanings ascribed to them in the
Stockholders Agreement.
  Investors Representatives
 3.
    
    This Amendment No. 5 may be executed in any number of original or facsimile
counterparts, and each such counterpart hereof shall be deemed to be an original
instrument, but all such counterparts together shall constitute but one agreement. Any
counterpart or other signature to this Amendment No. 5 that is delivered by facsimile shall
be deemed for all purposes as constituting good and valid execution and delivery by such
party of this Amendment No. 5.
 4.
    
    Except as set forth herein, all other terms and conditions of the Stockholders
Agreement remain the same.
  2




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IN WITNESS WHEREOF
 COMPANY

CARDIOVASCULAR SYSTEMS, INC.By:
    /s/ Laurence BetterleyName:
    Laurence BetterleyTitle:
    Chief Financial Officer




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IN WITNESS WHEREOF
 HOLDERS/s/ Gary M. PetrucciGary M. Petrucci/s/ Michael J. KallokMichael J. KallokGDN HOLDINGS, LLCBy:
    
    /s/ Glen D. NelsonName: Glen D. NelsonTitle: MemberGEOFFREY O. HARTZLER REV TRUST DTD 1/8/97, AS AMENDEDBy:
    
    /s/ Geoffrey O. HartlzerName: Geoffrey O. HartzlerTitle: Trustee/s/ Geoffrey O. HartlzerGeoffrey O. Hartzler/s/ Roger J. HoweRoger J. Howe, Ph. D.




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IN WITNESS WHEREOF
 INVESTORSEASTON HUNT CAPITAL PARTNERS, L.P.By:
    
    EHC GP, L.P. its General PartnerBy:
    
    EHC GP, Inc., its General PartnerBy:
    
    /s/ Richard P. SchneiderName: Richard P. SchneiderTitle: Vice President & SecretaryEASTON CAPITAL PARTNERS, LPBy:
    
    ECP GP, LLCBy:
    
    ECP GP, Inc., its ManagerBy:
    
    /s/ Richard P. SchneiderName: Richard P. SchneiderTitle: Vice President & Secretary




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IN WITNESS WHEREOF
 INVESTORSMAVERICK FUND, L.D.C.By:
    
    Maverick Capital, Ltd.Its Investment AdvisorBy:
    
    /s/ John T. McCaffertyName: John T. McCaffertyTitle: Limited Partner and General CounselMAVERICK FUND USA, LTD.By:
    
    Maverick Capital, Ltd.Its Investment AdvisorBy:
    
    /s/ John T. McCaffertyName: John T. McCaffertyTitle: Limited Partner and General CounselMAVERICK FUND II, LTD.By:
    
    Maverick Capital, Ltd.Its Investment AdvisorBy:
    
    /s/ John T. McCaffertyName: John T. McCaffertyTitle: Limited Partner and General Counsel




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IN WITNESS WHEREOF
 INVESTORS
MITSUI & CO. VENTURE PARTNERS II, L.P.By:
    Mitsui & Co. Venture Partners, Inc.Its General PartnerBy:
    /s/ Taro InabaName:
    Taro InabaTitle:
    President & CEO




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IN WITNESS WHEREOF
 INVESTORS
ITX INTERNATIONAL EQUITY CORP.By:
    /s/ Takehito JimboName:
    Takehito JimboTitle:
    President & CEO




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IN WITNESS WHEREOF
 INVESTORS
WHITEBOX HEDGED HIGH YIELD PARTNERS, LPBy:
    /s/ Jonathan WoodName:
    Jonathan WoodTitle:
    Director & COOWHITEBOX COMBINED PARTNERS, LPBy:
    /s/ Jonathan WoodName:
    Jonathan WoodTitle:
    Director & COO