Stent with enhanced friction
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United States of America Patent
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-
Jul 3, 2001
Issued Date -
N/A
app pub date -
Sep 23, 1999
filing date -
Sep 23, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A stent for placement in a body lumen is fabricated by forming a tube having an un-deployed diameter sized for the tube to be placed on a deployment balloon and advanced through a body lumen to a deployment site. The tube is expandable upon inflation of the balloon to an enlarged diameter sized for the tube to be retained within the lumen at the site upon deflation and withdrawal of the balloon. The tube has a stent axis extending between first and second axial ends of the tube. The tube has an exterior surface and an interior surface. The tube is polished to polish the exterior surface to a smooth surface finish and with at least a portion of the interior surface having a rough surface finish rougher than the surface finish of the exterior surface.
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