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Stent and catheter assembly and method for treating bifurcations

  • US 6,361,544 B1
  • Filed: 12/01/1999
  • Issued: 03/26/2002
  • Est. Priority Date: 08/13/1997
  • Status: Expired due to Term
First Claim
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1. A stent delivery assembly for implanting a stent in a bifurcated vessel having a side-branch vessel and a main vessel, comprising:

  • a dual balloon Y-shaped catheter having a proximal end and a distal end, the catheter including a single catheter shaft joining a pair of relatively short catheter shaft portions, a first expandable member having a proximal end and a distal end and a second expandable member having a proximal end and a distal end;

    a first lumen for receiving a restraining member, the first lumen extending through at least a portion of the catheter including the first expandable member;

    a second lumen for receiving a guide wire, the second lumen extending through at least a portion of the catheter including the second expandable member; and

    a restraining member positioned within the first lumen;

    wherein the first expandable member and the second expandable member are normally biased apart, but are restrained and held together by the restraining member to provide a low profile during delivery of the stent.

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