Expandable multi-layer tubular structure and production method thereof
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United States of America Patent
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Jul 1, 2008
Grant Date -
Mar 16, 2006
app pub date -
Jul 25, 2003
filing date -
Aug 16, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a radially expandable multi-layer tubular structure which is intended to be used as a stent and to the production method thereof. The inventive structure comprises an outer layer (1) and an inner layer (2) which are solidly connected to one another. One of the aforementioned layers (2) is provided with hollow channels (3) through the thickness thereof while the other layer is provided with perforations (4). Said channels (3) can be used to alter the mechanical properties of the stent and to house a medicament for the local treatment of the vessel in which the stent is disposed.
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