Intraluminal prostheses having polymeric material with selectively modified crystallinity and methods of making same
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United States of America Patent
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Aug 23, 2005
Grant Date -
Sep 16, 2004
app pub date -
Nov 4, 2003
filing date -
Mar 10, 2003
priority date (Note) -
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Abstract
Methods of manufacturing polymeric intraluminal prostheses include annealing the polymeric material to selectively modify the crystallinity thereof. Annealing may be utilized to selectively modify various properties of the polymeric material of an intraluminal prosthesis, including: selectively increasing the modulus of the polymeric material; selectively increasing the hoop strength of the intraluminal prosthesis; selectively modifying the elution rate (increase or decrease) of a pharmacological agent subsequently disposed on or within the annealed polymeric material; selectively increasing/decreasing stress in the intraluminal prosthesis; and selectively modifying the polymeric material such that it erodes at a different rate.
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