Stents for blood vessels
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United States of America Patent
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Feb 5, 2008
Grant Date -
N/A
app pub date -
Nov 30, 1999
filing date -
Nov 30, 1998
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A stent for supporting part of a blood vessel includes a supporting portion around which or within which part of an intact blood vessel, other than a graft, can be placed so that the stent internally or externally supports that part of the blood vessel. The supporting portion of the stent is of a shape and/or orientation whereby flow within the vessel is caused to follow a non-planar curve. By maintaining a non-planar curvature in the vessel itself, favorable blood flow velocity patterns can be achieved through the generation in the vessel of a swirl flow. Failures in such vessels through diseases such as thrombosis, atherosclerosis, intimal hyperplasia or through blockage, kinking or collapse, can be significantly reduced.
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