Stents for blood vessels
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United States of America Patent
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-
Apr 29, 2003
Grant Date -
N/A
app pub date -
Feb 22, 2000
filing date -
May 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stent for supporting part of a blood vessel which stent includes a supporting portion around which or within which part of a blood vessel intended for grafting can be placed so that the stent internally or externally supports that part and the supporting portion of the stent is of a shape and/or orientation whereby flow between graft and host vessel is caused to follow a non-planar curve. By maintaining non-planar curvature in the graft itself, favorable blood flow velocity patterns can be achieved through generation therein of `swirl` flow. Failures in such grafts through blockage, kinking or collapse, can be significantly reduced.
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