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US7083631: Percutaneous bypass graft and securing system

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Filing Information

Inventor(s) Russell A. Houser · James G. Whayne · Sidney D. Fleischman ·
Assignee(s) Converge Medical, Inc. ·
Attorney/Agent(s) Carol M. LaSalle · Bozicevic, Field & Francis LLP ·
Primary Examiner Julian W. Woo ·
Application Number US10243260
Filing date 09/12/2002
Issue date 08/01/2006
Prior Publication Data
Predicted expiration date 06/12/2019
Patent term adjustment 582
U.S. Classifications 606/153  · 623/111  ·
International Classifications A61B1708  ·
Kind CodeB2
Related U.S. Application DataCROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 09/903,219, entitled “Percutaneous Bypass Graft and Securing System”, filed Jul. 10, 2001 now abandoned, which is continuation of U.S. patent application Ser. No. 09/415,776, entitled “Percutaneous Bypass Graft and Securing System”, filed Oct. 8, 1999, now U.S. Pat. No. 6,293,955, which is a continuation of U.S. patent application Ser. No. 08/966,003, entitled “Percutaneous Bypass Graft and Securing System”, filed Nov. 7, 1997, now U.S. Pat. No. 5,989,276, which claims benefit of U.S. Provisional Application Serial No. 60/030,733 entitled “Percutaneous Bypass Graft and Securing System”, filed Nov. 8, 1996.
10 Claims, 14 Drawings


Abstract

A bypass graft incorporates fixation mechanisms at its opposite ends, for securing these ends to different locations along a blood vessel, or alternatively to different locations wherein one of the locations is a different vessel or an organ defining a cavity. Mechanical fixation features such as collets or grommets can be employed, enhanced by delivery of an electrical current sufficient to heat surrounding tissue to form a thermal bond. A graft deployment system includes a tissue dilator and a needle for perforating tissue, mounted coaxially within the dilator. Intralumenal systems further include a catheter for containing the dilator.

Independent Claims | See all claims (10)

  1. 1. A process for deploying a bypass graft, comprising: advancing a positioning device adjacent a wall of a host vessel, the positioning device having a distal end, a proximal end, and at least one magnet positioned near or at the distal end; passing the distal end of the positioning device through an orifice defined in the host vessel wall; advancing a bypass graft to the orifice, wherein the bypass graft is directed towards the orifice via a second magnet located along the host vessel wall and biased towards the at least one magnet; and, securing a distal end of a bypass graft to the host vessel wall such that the bypass graft is in fluid communication with the host vessel through the orifice.
  2. 8. An implantable anastomosis bypass graft system comprising: a tubular graft having a length which defines a lumen therethrough, wherein a portion of the tubular graft is positionable at a location along a body lumen via a proximal attractive element; a graft anchor attachable to the portion of the tubular graft, the graft anchor having a plurality of radially extending members for engagement with the body lumen; a distal attractive element disposable along the body lumen and adapted to magnetically engage the proximal attractive element at the location along the body lumen such that the tubular graft is in fluid communication with the body lumen; and a positioning device having a proximal end and a distal end, insertable by the distal end for intralumenal movement toward a selected site along the body lumen, wherein the proximal attractive element is located near the distal end of the positioning device.
  3. 10. An implantable anastomosis bypass graft system comprising: a positioning device comprising a proximal attractive element; a tubular graft having a length which defines a lumen therethrough, wherein a portion of the tubular graft is positionable at a location along a body lumen via the proximal attractive element; a graft anchor attachable to the portion of the tubular graft, the graft anchor having a plurality of radially extending members for engagement with the body lumen; a distal attractive element disposable along the body lumen and adapted to magnetically engage the proximal attractive element at the location along the body lumen such that the tubular graft is in fluid communication with the body lumen, wherein the proximal attractive element is an electromagnet comprised of at least one conductive coil.

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