Stent covering formed of porous polytetraflouroethylene
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United States of America Patent
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Aug 3, 2004
Grant Date -
N/A
app pub date -
Nov 2, 2000
filing date -
Nov 2, 2000
priority date (Note) -
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Abstract
A porous polytetrafluoroethylene substrate is used in an endoprosthesis device. An elongate radially expandable tubular stent is also included with the porous PTFE substrate, and form the endoprosthetic device. A method of making the porous polytetrafluoroethylene entails a novel method including siloxane in PTFE and thereafter removing the siloxane to form the porous structure. The PTFE structure does not have nodes and fibrils.
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