Filing Information

Inventor(s)	Hans Scholz · Ulf Kruger · Utz Settmacher ·
Assignee(s)	Impra, Inc. ·  View assignee updates
Attorney/Agent(s)	Morrison & Foerster LLP · Todd W. Wight ·
Primary Examiner	Michael J. Milano ·
Application Number	US9125907
Filing date	12/08/1998
Issue date	08/14/2001
Predicted expiration date	12/08/2018
U.S. Classifications	623/131  · 623/149  · 623/137  · 623/11  ·
International Classifications	--
Kind Code	B1
International Classifications	623 1 · 623 11 · 623 12 · 623 13 · 623 131 · 623 137 · 623 149 · 606153 · 600 36 ·
PCT Application Number	WO20PCTUS9602714 - 02/28/1996
PCT Publication Number	WO199731591 - 09/04/1997

Patent Family

Abstract

An expanded polytetrafluoroethylene flanged vascular graft (10) suitable for end-to-side anastomosis grafting having an integral terminal polytetrafluoroethylene flanged skirt or cuff section (12) which facilitates an end-to-side anastomosis directly between an artery and the expanded polytetrafluoroethylene flanged bypass graft (10) without need for an intervening venous collar or venous patch.

Independent Claims | See all claims (6)

1. 1. A vascular graft suitable for end-to-side anastomosis, comprising: an expanded polytetrafluoroethylene tubular graft member having proximal and distal ends; and at least one flanged section comprised of expanded polytetrafluoroethylene which projects outwardly away from a central axis of the tubular graft member at the distal end of the tubular graft member, the at least one flanged section being a continuous and integral section of the tubular graft member, wherein the at least one flanged section further comprises two flange members projecting outwardly away from the central axis of the tubular graft member in opposing directions.
2. 2. A vascular graft suitable for end-to-side anastomosis, comprising: an expanded polytetrafluoroethylene tubular graft member having proximal and distal ends; and at least one flanged section comprised of expanded polytetrafluoroethylene which projects outwardly away from a central axis of the tubular graft member at the distal end of the tubular graft member, the at least one flanged section being a continuous and integral section of the tubular graft member, wherein the at least one flanged section further comprises two flange members projecting outwardly away from the central axis of the tubular graft member in opposing directions, wherein the two flange members are substantially symmetrical mirror-images of one another.
3. 3. A vascular graft suitable for end-to-side anastomosis, comprising: an expanded polytetrafluoroethylene tubular graft member having proximal and distal ends; and at least one flanged section comprised of expanded polytetrafluoroethylene which projects outwardly away from a central axis of the tubular graft member at the distal end of the tubular graft member, the at least one flanged section being a continuous and integral section of the tubular graft member, wherein the at least one flanged section further comprises two flange members projecting outwardly away from the central axis of the tubular graft member in opposing directions, wherein the two flange members are substantially asymmetrical to one another.
4. 4. A vascular graft suitable for end-to-side anastomosis, comprising: an expanded polytetrafluoroethylene tubular graft member having proximal and distal ends; and at least one flanged section comprised of expanded polytetrafluoroethylene which projects outwardly away from a central axis of the tubular graft member at the distal end of the tubular graft member, the at least one flanged section being a continuous and integral section of the tubular graft member, wherein the at least one flanged section further comprises two flange members projecting outwardly away from the central axis of the tubular graft member in opposing directions, wherein a first of the two flange members comprises a toe section of the graft oriented distally relative to a fluid flow through the bypass graft and the second of the two flange members comprises a heel section of the graft oriented proximally relative to a fluid flow through the graft.
5. 5. A vascular graft suitable for end-to-side anastomosis, comprising: an expanded polytetrafluoroethylene tubular graft member having proximal and distal ends; at least one flanged section comprised of expanded polytetrafluoroethylene which projects outwardly away from a central axis of the tubular graft member at the distal end of the tubular graft member, the at least one flanged section being a continuous and integral section of the tubular graft member, wherein the at least one flanged section further comprises two flange members projecting outwardly away from the central axis of the tubular graft member in opposing directions, wherein a first of the two flange members comprises a toe section of the graft oriented distally relative to a fluid flow through the bypass graft and the second of the two flange members comprises a heel section of the graft oriented proximally relative to a fluid flow through the graft; and a crotch angle formed at a junction point between the first and second flange members, the crotch angle being between 45° and 180°.
6. 6. A vascular graft suitable for end-to-side anastomosis, comprising: an expanded polytetrafluoroethylene tubular graft member having proximal and distal ends; and at least one flanged section comprised of expanded polytetrafluoroethylene which projects outwardly away from a central axis of the tubular graft member at the distal end of the tubular graft member, the at least one flanged section being a continuous and integral section of the tubular graft member, wherein the at least one flanged section further comprises two flange members projecting outwardly away from the central axis of the tubular graft member in opposing directions, wherein a first of the two flange members comprises a toe section of the graft oriented distally relative to a fluid flow through the bypass graft and the second of the two flange members comprises a heel section of the graft oriented proximally relative to a fluid flow through the graft, wherein the first and second flange members each have a length between 1 to 5 times a lumenal diameter of the expanded polytetrafluoroethylene graft member.