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Probe, especially for the recanalization of occlusions, and catheter arrangement with such a probe

  • US 5,127,917 A
  • Filed: 05/17/1990
  • Issued: 07/07/1992
  • Est. Priority Date: 06/01/1989
  • Status: Expired due to Term
First Claim
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1. A probe for the recanalization of vascular occlusions, said probe comprising:

  • a) a length of wire having a proximal end and distal end section which has in sequence a conically tapered portion and a flat portion;

    b) a spiral spring member which surrounds the distal end section of the length of wire and whose spiral diameter is at least substantially equivalent to the diameter of the length of wire proximal to the conically tapered portion of said distal end section; and

    c) a distal tip attached to the end of the flat portion of said distal end section and to the end of said spring member, said tip having a maximum diameter substantially larger than the maximum spiral diameter of the spring member.

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