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Intraluminal prostheses having polymeric material with selectively modified crystallinity and methods of making same

  • US 8,906,286 B2
  • Filed: 03/30/2011
  • Issued: 12/09/2014
  • Est. Priority Date: 03/10/2003
  • Status: Expired due to Fees
First Claim
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1. A method of manufacturing an intraluminal prosthesis having an outer surface of polymeric material, wherein the intraluminal prosthesis is expandable from a contracted configuration when deployed within a lumen of a subject body, the method comprising annealing a selected portion of the polymeric material for a time prior to deployment and at a temperature sufficient to selectively modify the crystallinity thereof, wherein annealing comprises heating the selected portion of the polymeric material via a light source to a first temperature greater than or equal to the glass transition temperature of the polymeric material for a first period of time and then quenching the selected portion of the polymeric material to a second temperature lower than the glass transition temperature for a second period of time sufficient to selectively control the crystallinity of the selected portion of the polymeric material.

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