Encapsulated intraluminal stent-graft and methods of making same
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United States of America Patent
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Sep 17, 2002
Grant Date -
Nov 8, 2001
app pub date -
Apr 9, 1997
filing date -
Mar 10, 1995
priority date (Note) -
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Abstract
Shape memory alloy and elastically self-expanding endoluminal stents which are at least partially encapsulated in a substantially monolithic expanded polytetrafluoroethylene ('ePTFE') covering. An endoluminal stent, which has a reduced diametric dimension for endoluminal delivery and a larger in vivo final diametric diameter, is encapsulated in an ePTFE covering which circumferentially covers both the luminal and abluminal walls along at least a portion of the longitudinal extent of the endoluminal stent. The shape memory endoluminal stent is fabricated from a shape memory alloy which exhibits either shape memory or pseudoelastic properties or from an elastic material having an inherent spring tension.
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