PTFE vascular graft and method of manufacture
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United States of America Patent
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Apr 13, 2004
Grant Date -
Jan 2, 2003
app pub date -
Aug 5, 2002
filing date -
Jan 22, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
An implantable microporous ePTFE tubular vascular graft exhibits long term patency, superior radial tensile strength and suture hole elongation resistance. The graft includes a first ePTFE tube and a second ePTFE tube circumferentially disposed over the first tube. The first ePTFE tube exhibits a porosity sufficient to promote cell endothelization, tissue ingrowth and healing. The second ePTFE tube exhibits enhanced radial strength in excess of the radial tensile strength of the first tube.
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