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Anchorable guidewire

  • US 5,167,239 A
  • Filed: 05/30/1991
  • Issued: 12/01/1992
  • Est. Priority Date: 05/30/1991
  • Status: Expired due to Fees
First Claim
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1. An anchorable guidewire comprising:

  • an elongate guidewire body having a proximal end, a distal end, and an outer surface, said guidewire body comprising;

    a) an elongate inner tubular member having at least one hollow lumen extending longitudinally therethrough and an outer surface; and

    b) a coiled wire member coiled about the outer surface of said inner tube member; and

    c) said coiled wire member being absent from a first region of the outer surface of said inner tubular member so as to expose the outer surface of the inner tubular member within said first region,an inflatable anchoring member positioned at a first location on said guidewire body, said inflatable anchoring member being mounted on the outer surface of said innertube member within said first region;

    a fluid injection port positioned at a second location proximal to said first location;

    a fluidic interconnection between said fluid injection port and said inflatable anchoring member such that fluid may be injected through said injection port to cause inflation of said anchoring member;

    a deactuatable check valve apparatus to prevent deflation of said inflatable anchoring member until such time as said check valve apparatus is volitionally deactuated by a human operator to allow deflation of said inflatable anchoring member.

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