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Instrument for vascular surgery and its use

  • US 5,792,156 A
  • Filed: 06/27/1996
  • Issued: 08/11/1998
  • Est. Priority Date: 06/27/1995
  • Status: Expired due to Term
First Claim
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1. An instrument for vascular surgery, said instrument comprising:

  • an elongated sheath;

    a catheter extending through said sheath;

    a dilatable and contractable sleeve having an intermediate substantially cylindrical portion, a proximal end portion integral with a distal end of said sheath, and a distal end portion integral with a distal end of said catheter, said sleeve being able to pass from a contracted state to a dilated state, and vice versa, by exerting a reciprocating movement on said catheter relative to said sheath; and

    said sleeve comprising a latticework which is completely embedded in an envelope made of an extensible material, said sleeve forming a volume including an intermediate tubular sheet in said intermediate portion and a proximal sheet and a distal sheet which close off said volume and which are connected to said distal ends of said sheath and of said catheter, respectively, through said proximal and distal and portions, respectively.

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