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EP0862392B1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Expandable supportive bifurcated endoluminal grafts

Assignee: Boston Scientific Ltd Barbados
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Filing: 1996-10-29
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Granted: 2001-08-22
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Expires: 2016-10-29
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Abstract

Abstract An endoluminal graft which is both expandable and supportive is provided in a form suitable for use in a bifurcated body vessel location. The graft expands between a first diameter and a second, larger diameter. The support component is an expandable stent endoprosthesis. A cover, a liner, or both a cover and a liner are applied to the endoprosthesis in the form of a stretchable wall material that is porous, elastomeric and biocompatible in order to allow normal cellular invasion upon implantation, without stenosis, when the expandable and support graft is at its second diameter. The supportive endoluminal graft is preferably provided as a plurality of components that are deployed separately at the bifurcated body vessel location. <IMAGE>

Inventors

  • 👤 Jean-Pierre Georges Emile Dereume
  • 👤 Leonard Pinchuk

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 08:37
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/07; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2/88; A61F2/885; A61F2/89; A61F2002/065; A61F2002/067; A61F2002/072; A61F2002/075; A61F2/30; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/826; A61F2220/00; A61F2220/0008; A61F2220/0016; A61F2220/0025; A61F2220/005; A61F2220/0058; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/001; A61F2230/0013; A61F2230/0063; A61F2230/0073; A61F2230/0078; A61F2250/00; A61F2250/0004; A61F2250/0007; A61F2250/0014; A61F2250/0039

Claims Analysis

Total Claims: 27
Claim 1
Independent Claim 196 words
A multiple-component bifurcating, expandable, supportive, endoluminal graft comprising: a plurality of expandable, supportive, endoluminal components that are adapted to be deployed individually at a selected location within a body vessel, each of said supportive, endoluminal components being radially compressible for endoluminal insertion and radially expandable for deployment at a desired location within a body vessel; one of said expandable, supportive, endoluminal components being a trunk component (82-85; 101), said trunk component including a tubular supporting member (82; 121), at least one other of said expandable, supportive, endoluminal components being a generally cylindrical supportive leg component (89, 90; 108, 115); characterised in that said trunk component includes a trunk liner (83; 122) positioned along said tubular supporting member, said trunk liner having a generally cylindrical body portion (84; 123) and at least two leg portions (85, 86; 109, 113), each said leg portion defining a leg opening (127, 128); and said generally cylindrical supportive leg component (89, 90; 108, 115) and one of said leg portions (85,86; 109, 113) of the trunk component are adapted to be telescopically positioned with respect to each other when said leg component and trunk component are deployed within the body vessel.
Claim 2
Dependent Claim 41 words
A supportive endoluminal graft in accordance with claim 1, characterised in that said generally cylindrical supportive leg component (89, 90; 108, 115) has an end portion which, when deployed, is positioned within said leg opening (127, 128) of the trunk component.
Claim 3
Dependent Claim 29 words
A supportive endoluminal graft in accordance with claim 1 or claim 2, characterised in that said plurality of expandable supportive endoluminal components (82-85, 89,90; 101, 109, 113) are self-expanding.
Claim 4
Dependent Claim 36 words
A supportive, endoluminal graft in accordance with claim 1 or claim 2, characterised in that said plurality of expandable, supportive, endoluminal components are adapted to be deployed by a radially expandable device (69; 104, 107, 114).
Claim 5
Dependent Claim 35 words
A supportive, endoluminal graft in accordance with any of claims I to 4, characterised in that said generally cylindrical, supportive leg component includes a generally cylindrical supporting member and a generally cylindrical liner secured thereaiong
Claim 6
Dependent Claim 67 words
A supportive endoluminal graft in accordance with any of claims 1 to 5, characterised in that said trunk liner (83; 122) is a stretchable wall of essentially inert biocompatible material, said stretchable wall being attached to a portion of the internal surface of the trunk component tubular supportive member (82; 121) said stretchable wall having a diameter size that expands with said trunk component tubular supportive member.
Claim 7
Dependent Claim 52 words
A supportive endoluminal graft in accordance with claim 5, characterised in that said liner of the generally cylindrical supportive leg component is a stretchable wall of essential inert biocompatible material, said stretchable wall being applied onto at least the internal surface of the generally cylindrical tubular supporting member of the leg component.
Claim 8
Dependent Claim 38 words
A supportive endoluminal graft in accordance with any of claims 1 to 7, characterised in that said leg portions (85, 86; 109, 113) of the trunk liner extend longitudinally beyond said tubular supportive member of the trunk component.
Claim 9
Dependent Claim 20 words
A supportive endoluminal graft in accordance with claim 8, characterised in that said leg portions are separated from each other.
Claim 10
Dependent Claim 36 words
A supportive endoluminal graft in accordance with any of claims 1 to 7, characterised in that said leg portions of the trunk liner are longitudinally generally coextensive with said tubular supportive member of the trunk component.
Claim 11
Dependent Claim 54 words
A supportive endoluminal graft in accordance with claim 10, characterised in that an outside section (124,125) of each of said leg portions of the trunk liner (122) is secured to said tubular supportive member (21) while inside sections of each of said leg portions are secured to each other along an internal seam (126).
Claim 12
Dependent Claim 42 words
A supportive endoluminal graft in accordance with any of claims 1 to 11, characterised in that said generally cylindrical supportive leg component (89,90; 108,115), when deployed, is telescopically slidably positioned within one of said leg portions (85,86; 109,113) of the trunk component.
Claim 13
Dependent Claim 50 words
A supportive endoluminal graft in accordance with claim 5, characterised in that said liner of the leg component and said trunk liner are each of stretchable wall made from a porous elastomeric material that provides a structure which allows normal cellular invasion thereinto from the body vessel when implanted therewithin.
Claim 14
Dependent Claim 24 words
A supportive endoluminal graft in accordance with claim 13, characterised in that said porous elastomeric material of each stretchable wall is an elastomeric polymer.
Claim 15
Dependent Claim 24 words
A supportive endoluminal graft in accordance with claim 13, characterised in that said porous elastomeric material of said stretchable wail is a polycarbonate urethane.
Claim 16
Dependent Claim 25 words
A supportive endoluminal graft in accordance with claim 13, characterised in that said porous elastomeric material is coated with a thin layer of silicone rubber.
Claim 17
Dependent Claim 39 words
A supportive endoluminal graft in accordance with claim 5, characterised in that said trunk liner and said liner of the leg component are each of stretchable wall along the internal surface and the external surface of each supportive member.
Claim 18
Dependent Claim 40 words
A supportive endoluminal graft in accordance with any of claims 1 to 7 or 13 to 17, characterised in that an exposed longitudinal end of said tubular supportive component extends longitudinally beyond and is not completely covered by said liner.
Claim 19
Dependent Claim 63 words
A supportive endoluminal graft in accordance with claim 17, characterised in that said tubular supportive member has a plurality of open areas therealong, and said stretchable wall along said external surface of the tubular supporting member is bonded to said stretchable wall along said internal surface of the tubular supporting member at locations defined by said open areas of the tubular supporting member.
Claim 20
Dependent Claim 41 words
A supportive endoluminal graft in accordance with any of claims 1 to 19, wherein said tubular supporting member has a plurality of open areas therealong, and an attachment component passes through one of said open areas of said tubular supporting member.
Claim 21
Dependent Claim 32 words
A supportive endoluminal graft in accordance with any of claims 1 to 20, characterised in that said tubular supporting member (82; 121) includes a plurality of wire strands with open areas therebetween.
Claim 22
Dependent Claim 47 words
A supportive endoluminal graft in accordance with claim 21, characterised in that said wire strands of the tubular supporting member (82;121) are generally sinusoidally configured wire that is helically wound into the tubular supporting member, said wire defining therebetween said open areas of the tubular supporting member.
Claim 23
Dependent Claim 42 words
A supportive endoluminal graft in accordance with claim 21, characterised in that said wire strands of the tubular supporting member are shaped as intersecting elongated lengths integral with each other and defining said openings therebetween to form a mesh-shaped tubular supporting member.
Claim 24
Dependent Claim 28 words
A supportive endoluminal graft in accordance with any of claims 1 to 23, characterised in that the endoluminal graft comprises a surface treatment for biocompatibility or drug therapy.
Claim 25
Dependent Claim 25 words
A supportive endoluminal graft in accordance with any of claims 1 to 24, characterised in that said trunk component includes a projecting securement member (130).
Claim 26
Dependent Claim 136 words
A supportive endoluminal graft in accordance with claim 1, characterised in that said trunk component (82-85) has an internal surface, an external surface spaced outwardly from and shaped complementarily with said internal surface, and a network of land areas with open areas defined therebetween, said trunk component liner (83) is a stretchable wall of essentially inert biocompatible material, said stretchable wall being applied to at least one of said internal surface and said external surface of the tubular supporting member, said stretchable wall having an extension portion that extends beyond said tubular supporting component thereof; and said extension portion of the stretchable wall is branched into at least two generally tubular leg portions (85,86) of stretchable wall material, each said leg portion being sized and shaped to receive a said generally cylindrical supportive leg component (89,90).
Claim 27
Dependent Claim 46 words
A multi-component, bifurcating, expandable, supportive, endoluminal graft as claimed in any preceding claims, characterised in that said trunk liner (122) is secured to said tubular supporting member (121) and is pinched along its length and sutured, sewn and glued to form two distinct leg portions (109,113).

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