Stent and method for manufacturing the same
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United States of America Patent
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Feb 27, 2007
Grant Date -
Mar 4, 2004
app pub date -
Jun 13, 2003
filing date -
Sep 3, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A stent includes a cylindrical main body contractible and expandable in a circumferential direction, a cover member coated on inner and/or outer circumference of the main body, and an inverse current preventing member for preventing food or fluid from reversely flowing. The inverse current preventing member is disposed in the main body and includes a fixing layer defining a passage having a diameter capable of allowing food and fluid to pass, the fixing layer being fixed in the main body and a valve layer extending from the fixing layer to a distal end of the main body.
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