Patent ID: 6740115
Filing Date: 2004-05-25
Classification: A61F,A61L

Abstract:
A flexible covered stent, comprising:a stent comprising a plurality of ring stents, each of said ring stents joined to an adjacent of said ring stents by at least one joining point, wherein said joining point is integral therewith; a first layer of biocompatible material, covering at least a portion of a first surface of said stent; and a second layer of biocompatible material, covering at least a portion of a second surface of said stent, said second layer having a length less than a length of said first layer, said second layer being positioned at a first end region of said stent, leaving at least a mid portion of said second surface of said stent uncovered, wherein said second layer is bonded to said first layer; wherein said length of said first layer is less than the longitudinal length of said stent such that at least one extremity of said stent is left uncovered by said first layer, wherein said uncovered extremity flares outward with respect to a longitudinal axis of the flexible covered stent upon expansion thereof.