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Atherectomy advancing probe and method of use

  • US 5,019,089 A
  • Filed: 12/07/1989
  • Issued: 05/28/1991
  • Est. Priority Date: 12/07/1989
  • Status: Expired due to Term
First Claim
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1. An atherectomy probe for incrementally advancing a rotatable cutter to remove obstructive tissue from an artery comprising:

  • a distal support;

    a proximal support;

    a torque tube slidably held by said distal support and said proximal support, said torque tube having a distal end operatively engageable with the cutter;

    a motor operatively connected to the proximal end of said torque tube for rotating said torque tube;

    a connector for selectively holding said motor stationary with respect to said distal support;

    means for selectively advancing said proximal support toward said distal support while said connector holds said motor stationary; and

    means for incrementally moving said motor toward said distal support to the extent allowed by said proximal support to advance the cutter from said distal support when said connector is released.

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