Patent ID: 6786920
Filing Date: 2004-09-07
Classification: A61F,A61L,B29C,B29K,B29L,Y10S

Abstract:
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.