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Selective adherence of stent-graft coverings, mandrel and method of making stent-graft device

  • US 6,245,099 B1
  • Filed: 09/30/1999
  • Issued: 06/12/2001
  • Est. Priority Date: 09/30/1998
  • Status: Expired due to Term
First Claim
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1. A method of making an endoluminal stent-graft, comprising the steps of:

  • placing a first covering member composed of a biocompatible polymer on a surface having a pattern of elevated regions;

    placing a radially expandable stent over said first covering member in alignment with said pattern;

    placing a second covering member composed of a biocompatible polymer over said expandable stent;

    applying pressure to force said first covering member and said second covering member into intimate contact through openings in the stent and in registration with the pattern; and

    heating the first and second covering members to form a pattern of bonds between the covering members, said pattern of bonds corresponding to the pattern of elevated regions.

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