Expandable supportive endoluminal grafts

  • US 5,723,004 A
  • Filed: 01/31/1996
  • Issued: 03/03/1998
  • Est. Priority Date: 10/21/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A bifurcated expandable supportive endoluminal graft, comprising:

  • a tubular supporting component with a trunk tube having a longitudinal axis and at least one branch tube having an axis disposed at an acute angle with respect to said longitudinal axis of the trunk tube, said tubular supporting component having an internal surface disposed toward the longitudinal axis of each of said trunk tube and branch tube and an external surface spaced outwardly from and shaped complementarily with said internal surface, said tubular supporting component having a network of strand areas with interstices therebetween, said tubular supporting component being expandable from a first diameter of each of the trunk tube and branch tube at which the graft can be inserted into a body pathway, each of said trunk tube and branch tube having a second diameter, each said second diameter being greater than each respective first diameter;

    a stretchable wall of essentially inert biocompatible material, said stretchable wall being applied onto both of said internal and external surfaces of the tubular supporting component such that said stretchable wall is both a liner covering said internal surface of the tubular supporting component and also a cover over said external surface of the tubular supporting component, said stretchable wall having a first diameter size when said tubular supporting component is at its said first diameter of each of the trunk tube and branch tube, and said stretchable wall having a second diameter when said tubular supporting component is at its said second diameter size of each of the trunk tube and branch tube;

    said liner is bonded to said cover through said interstices of the tubular supporting component so as to encapsulate said tubular supporting component within said stretchable wall; and

    said stretchable wall is made from a porous elastomeric material that provides a structure which allows normal cellular invasion thereinto from the body pathway when implanted therewithin.

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