Method for manufacturing yarn for vessel stent
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United States of America Patent
Stats
-
Jun 27, 2006
Grant Date -
Mar 20, 2003
app pub date -
Oct 30, 2002
filing date -
Sep 8, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A stent for a vessel implanted in the vessel of the living body including a main body portion of the stent formed into a tube by a yarn formed of a biodegradable polymer exhibiting a shape memory function. The main body portion of the stent is shape-memorized to a size that can be inplanted in the vessel. The main body portion of the stent is implanted in the vessel of the living body as it is contracted in diameter by an external force, and is enlarged in diameter by being heated with the temperature of the living body. The main body portion of the stent is formed by winding a yarn formed of a biodegradable polymer in a tube form as the yarn is bent in a zigzag design. The main body portion of the stent is enlarged or contracted in diameter with the bends of the yarn as the displacing portions.
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