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Spiral shaped perfusion balloon and method of use and manufacture

  • US 5,484,411 A
  • Filed: 01/14/1994
  • Issued: 01/16/1996
  • Est. Priority Date: 01/14/1994
  • Status: Expired due to Term
First Claim
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1. A dilation catheter for use in medical procedures comprising:

  • an elongated flexible tubular member;

    a dilating balloon disposed on said tubular member, said balloon member having an interior and exterior surface, said balloon having a collapsed condition of a size allowing said balloon to be transported through a body vessel, and said balloon having an expanded condition of a size allowing said exterior surface to engage a body vessel wall;

    a longitudinally extending spiral wall formed integrally with said exterior surface, said spiral wall defining a longitudinally extending spiral channel spaced radially inwardly from said exterior surface when said balloon is in its expanded condition; and

    means for passing fluid between said balloon member and said tubular member to vary said balloon member between its collapsed and expanded conditions;

    further including a membrane disposed over said longitudinally extending spiral channel, said membrane sealingly connected to the exterior surface of said balloon, and said membrane includes a perforation therethrough at said spiral channel.

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