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Tubular medical endoprostheses

  • US 5,725,570 A
  • Filed: 02/29/1996
  • Issued: 03/10/1998
  • Est. Priority Date: 03/31/1992
  • Status: Expired due to Term
First Claim
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1. A self-expanding implantable tubular medical stent device, comprising;

  • a catheter carrying a stent, said stent being elastically compressed to a small diameter for delivery into a body and capable of being elastically expanded to a larger diameter, said stent being formed of metal wire configured to substantially define a tube when said stent is expanded to said larger diameter, said wire composed of a core and a sheath surrounding said core, said core being formed of a first metal and said sheath being formed of a second metal, the first metal having greater density than the second metal and the second metal having greater elasticity than the first metal.

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