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Atherectomy and angioplasty method and apparatus

  • US 5,308,354 A
  • Filed: 12/10/1991
  • Issued: 05/03/1994
  • Est. Priority Date: 07/15/1991
  • Status: Expired due to Term
First Claim
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1. An apparatus for treating an obstruction in a vessel, comprising:

  • a coil;

    said coil being capable of elongation thereby reducing the circumference as said coil is elongated;

    means for selectively elongating said coil;

    means for introducing said coil inside a vessel proximate to an obstruction;

    said coil having an abrasive surface covering at least part of its outer surface;

    means for selectively rotating said coil;

    an angioplasty balloon disposed proximal to said coil; and

    means for selectively inflating said balloon.

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