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Percutaneous bypass graft and securing system

  • US 20020052637A1
  • Filed: 11/21/2001
  • Published: 05/02/2002
  • Est. Priority Date: 11/08/1996
  • Status: Active Grant
First Claim
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1. A system for implanting a bypass graft, including:

  • a tissue dilating member having at its distal end a tissue dilating tip that converges in a distal direction;

    a tissue puncturing tool supported within the dilating member and extending in the distal direction from the dilating tip, said tool adapted to puncture a tissue wall to form an orifice enlargeable by the dilating tip; and

    a graft comprising a substantially fluid impervious graft wall with first, second and third spaced apart regions of the wall having respective first, second and third openings formed through the graft wall;

    wherein the graft is adapted to be removably mounted on the dilating member in which the dilating member extends through the first and third openings, with the first opening disposed near the dilating tip and the third opening disposed proximally of the first opening so to enable use of the dilating member to insert the first region of the graft wall into a first orifice in the tissue wall for fixation of the first region therein; and

    wherein the graft further is slideable relative to the dilating member to permit a proximal withdrawal of the dilating member from the first region after said fixation, and further to allow an insertion of the dilating member into the second opening for securing the second region of the graft wall within a second orifice in the tissue wall whereby the graft provides a fluid flow conduit between the first orifice and the second orifice; and

    a closure mechanism for closing the third opening, following withdrawal of the dilating member from the graft.

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