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Multicapsule intraluminal grafting system and method

  • US 5,749,920 A
  • Filed: 11/22/1995
  • Issued: 05/12/1998
  • Est. Priority Date: 12/09/1983
  • Status: Expired due to Fees
First Claim
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1. A system for placing a graft in a lumen formed by a wall in a body, said system comprising:

  • a tubular graft having a superior extremity and an inferior extremity, said graft being deformable between a collapsed condition and an expanded condition;

    first anchoring means secured to the superior extremity of said graft for attaching the superior extremity of said graft to the lumen wall;

    second anchoring means secured to the inferior extremity of said graft for attaching the inferior extremity of said graft to the lumen wall;

    said first and second anchoring means each including a plurality of wall engaging members and a continuous wire frame configured to provide a plurality of vees;

    a distal capsule assembly for covering said first anchoring means;

    a proximal capsule assembly for covering said second anchoring means, wherein at least a portion of said graft between said first and second anchoring means remains uncovered;

    placement means for positioning said graft, said distal capsule assembly and said proximal capsule assembly at a desired location in the lumen,said placement means including means for moving said distal capsule assembly relative to said proximal capsule assembly to uncover said first anchoring means and means for moving said proximal capsule assembly relative to said graft to uncover said second anchoring means;

    wherein said placement means includes first catheter means having a balloon secured to a flexible elongate shaft having an inflation lumen in fluid communication with the balloon, the first catheter means being capable of moving the balloon within said graft and into engagement with said first anchoring means and with said second anchoring means;

    wherein said distal capsule assembly includes a distal capsule and a proximal cap slidably retained in the distal capsule and secured on the shaft of the first catheter means of said placement means, wherein the shaft extends through the proximal capsule assembly, the proximal cap, and the distal capsule; and

    a removable sleeve of a flexible material, said removable sleeve including a main sheath having an expanded diameter configured to extend over said proximal capsule assembly, said graft and at least a portion of said distal capsule assembly, wherein a smooth transition is provided between said distal capsule assembly and said proximal capsule assembly.

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