Helically formed stent/graft assembly
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United States of America Patent
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Aug 16, 2005
Grant Date -
May 30, 2002
app pub date -
Jan 25, 2002
filing date -
Jul 2, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a support structure/membrane composite device which includes a support structure, such as a radially expandable stent, a porous non-textile polymeric membrane adjacent to said stent and a thermoplastic anchor means attaching said stent to said porous non-textile polymeric membrane. The porous non-textile polymeric membrane is preferably made from expandable fluoropolymer materials. The anchoring means is a thermoplastic material which is dissolvable at the interface between the support structure and membrane by a suitable solvent which wets the membrane surface and deposits the thermoplastic material within the pores of the membrane. Methods of preparing the device are also disclosed.
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