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Radially expandable stented tubular PTFE grafts

  • US 6,786,920 B2
  • Filed: 10/16/2001
  • Issued: 09/07/2004
  • Est. Priority Date: 07/03/1996
  • Status: Expired due to Fees
First Claim
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1. An internally stented graft convertible between a compact configuration having a first diameter and an expanded configuration having a second, larger diameter, comprising:

  • at least one stent formed in a generally cylindrical shape having an outer surface and a hollow bore extending longitudinally therethough, the stent being convertible between a compact configuration having a first diameter and an expanded configuration having a second, larger diameter;

    a flexible, porous, biocompatible tubular PTFE graft co-axially disposed in contact with and adhered to the outer surface of the stent; and

    a polymer coating on the stent to facilitate adherence of the stent to the tubular PTFE graft, wherein the tubular PTFE graft is formed of a plurality of concentric layers of helically-wound PTFE tape having a width of less than about one inch.

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