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Stent delivery systems

  • US 5,372,600 A
  • Filed: 05/10/1993
  • Issued: 12/13/1994
  • Est. Priority Date: 10/31/1991
  • Status: Expired due to Term
First Claim
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1. Apparatus for implanting a flexible, generally cylindrical, expandable stent, comprising:

  • a catheter having distal and proximal ends, said catheter defining a central lumen and a second lumen extending therethrough and having two longitudinally displaced openings extending from the second lumen radially to the surface of the catheter,a flexible, expandable stent having discrete proximal and distal ends, said stent being positioned circumferentially around said catheter and said discrete ends extending into said openings to hold said stent in position, andat least one release wire positioned in and extending through the second lumen, said release wire or wires fixedly containing at least one conically shaped pushing member capable of causing a discrete end of said stent to move radially as the release wire or wires are moved proximally.

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