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Spiral sheath retainer for autoperfusion dilatation catheter balloon

  • US 5,735,816 A
  • Filed: 07/23/1996
  • Issued: 04/07/1998
  • Est. Priority Date: 07/23/1996
  • Status: Expired due to Fees
First Claim
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1. A spiral balloon perfusion catheter assembly, which comprises:

  • a catheter;

    a catheter balloon mounted on a distal end of said catheter substantially coaxial with said catheter;

    said catheter balloon having an exterior spiral lobe and channel pattern; and

    a wire retainer having a central spiral region conforming to said channel and radially wound end regions wrapped around said catheter adjacent to primal and distal ends of said catheter balloon;

    said wire retainer formed from a shape memory alloy that resists permanent deformation when exposed to balloon expansion pressures.

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