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Stent aneurysm treatment system and method

  • US 6,361,558 B1
  • Filed: 05/09/2000
  • Issued: 03/26/2002
  • Est. Priority Date: 03/31/1998
  • Status: Expired due to Term
First Claim
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1. A vascular stent system for treating a blood vessel defect near a position where a first and second blood vessel branch off from a parent vessel comprising:

  • a first stent formed of a wire having a proximal end and a distal end, said first stent being constructed from a resilient material which upon being stretched takes the form of a generally elongated helical shape having a large pitch and upon being released returns to a generally helical shape having a small pitch;

    a second stent formed of a wire having a proximal end and a distal end, said second stent being constructed from a resilient material which upon being stretched takes the form of a generally elongated helical shape having a large pitch and upon being released returns to a generally helical shape having a small pitch;

    a catheter having a proximal end, a distal end and a lumen therethrough;

    said first and second stents being disposed within the lumen of said catheter and said first and second stents being interlocked and interwound, wherein upon deployment the first and second stents separate from each other if unconstrained, but remain interlocked and interwound if constrained within a single vessel.

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