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US6273912: Flanged graft for end-to-side anastomosis

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Filing Information

Inventor(s) Hans Scholz · Ulf Kruger · Utz Settmacher ·
Assignee(s) Impra, Inc. ·
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 CodeB1
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
6 Claims, 3 Drawings


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.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2127903 DAVIS & GECK INC Bowen Aug 1938
US3196194 PENNSYLVANIA FLUOROCARBON CO I Ely, Jr. et al. Jul 1965
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Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
WO199600103Jan 1996
* cited by examiner

Other Publications

Justin H. Miller et al. “The Use of the Vein Cuff and PTFE”, Vascular Surgical Techniques and Atlas Second Edition, pp. 276-286.
R.S. Taylor et al. “Improved Tecnique for Polytetrafluoroethylene Bypass Grafting: Long-Term Results Using Anastomotic Vein Patches”, The British Journal of Surgery. 1992, vol. 79, Apr. 4, 1992, pp. 348-354.
J.F. Chester et al. “Interposition Vein Patches for Vascular Reconstruction”, pp. 1-3.
John H.N. Wolfe “Polytetrafluoroethylene (PTFE) Femorodistal Bypass”, Rob & Smiths Operative Surgery/Vascular Surgery Fifth Edition, pp. 330-340.

Referenced By

Document NumberAssigneeInventorsIssue/Pub Date
FR2850008 ROUX DANIEL ROUX DANIEL Jul 2004
EP1576928 Markus Enzler Markus Enzler Sep 2005
US7500978 Intrinsic Therapeutics, Inc. Bogomir Gorensek et al. Mar 2009
US7507243 Gregory Lambrecht et al. Mar 2009
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US7553329 Intrinsic Therapeutics, Inc. Gregory H. Lambrecht et al. Jun 2009
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Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
US6273912 Impra, Inc. Hans Scholz et al. Aug 2001
US20010041932 Ulf Kruger et al. Nov 2001
US6746480 Bard Peripheral Vascular, Inc. Hans Scholz et al. Jun 2004
US20040210302 Bard Peripheral Vascular Ulf Kruger et al. Oct 2004