Low profile resorbable stent
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United States of America Patent
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Issued Date -
Jun 23, 2005
app pub date -
Dec 22, 2003
filing date -
Dec 22, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A low profile resorbable stent comprising an oriented, resorbable material, wherein said material has Young's Modulus and tensile strength in the oriented state greater than Young's modulus and tensile strength of unoriented material is disclosed. The low profile resorbable stent has a resorbable material with Young's modulus about 2-300 GPa and/or tensile strength 50-200 MPa. The resorbable material of the present invention is oriented such that the tensile strength and modulus are higher than the unoriented materials allowing for the low profile stent design. Also disclosed is a method of manufacturing a low profile resorbable stent. The method comprises providing an extrudate comprising a resorbable material, inducing molecular alignment in the extrudate to form an oriented extrudate and forming the stent from the oriented extrudate. The extrudate of resorbable material can be a sheet, tube or some other form. The sheet extrudate is stretched axially or biaxially to induce molecular alignment. The tubular extrudate is blow-molded to induce molecular alignment.
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