Expandable stent-graft covered with expanded polytetrafluoroethylene
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United States of America Patent
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Dec 26, 2000
Grant Date -
N/A
app pub date -
Dec 11, 1997
filing date -
Nov 21, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The expandable stent-graft generally defines a cylindrical lumen made from a stent having a discontinuous wall that is at least substantially covered with an expanded polytetrafluoroethylene material. The expanded polytetrafluoroethylene covering may be a biaxially oriented, expanded polytetrafluoroethylene material having nodules and longitudinal and circumferential fibrils or a uniaxially oriented, expanded polytetrafluoroethylene material. The expandable stent-graft expands and compresses in association with the stent structure as it is contracted and expanded.
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