Method for the manufacture of intraluminal stents of bioresorbable polymeric material
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United States of America Patent
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Aug 10, 1999
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N/A
app pub date -
Oct 17, 1996
filing date -
Oct 24, 1995
priority date (Note) -
Expired
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Abstract
A method for the manufacture of intravascular stents of bioresorbable material comprises the following steps: preparing a viscous solution of poly-.beta.-hydroxybutanoic acid as a bioresorbable polymeric material in a solvent, successively coating a male mold core with layers of the polymer solution in several steps by precipitation of the polymeric material by the solvent being evaporated and by the layer previously precipitated being dissolved at least partially for a homogeneous stent blank to build up, drawing the stent blank off the male mold core, and subsequently treating the stent blank to finish the shaping of the stent.
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