Prosthetic graft and method for aneurysm repair
First Claim
1. A graft delivery system comprising:
- a) an elongated catheter with proximal and distal ends and a means for expanding an expandable anchoring member on a distal portion of the catheter;
b) an expandable anchoring member with proximal and distal ends mounted on the means for expanding;
c) an aortic graft in a radially compressed state with proximal and distal ends and mounted on the catheter proximally adjacent to, and non-overlapping the proximal end of, the anchoring member; and
d) drawing means secured to the distal end of the graft and configured to pull the distal end of the graft to overlap the proximal end of the anchoring member.
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Accused Products
Abstract
This invention provides a method and graft system for aneurysm repair comprising a prosthetic graft with means to draw a distal extremity of the graft over a portion of an expandable anchoring member. Prior to deployment, the graft and the anchoring member do not overlap to reduce the outer diameter of the delivery system. Preferably, the drawing means comprises pull strands connected to the distal extremity of the graft so that the distal extremity of the graft may be pulled over a proximal portion of the anchoring member. Subsequent expansion of the anchoring member seals the overlapped graft against the vessel wall to minimize blood flow-by and secures the graft in the vessel. Securing means may be advanced up each pull strand to abut the anchoring member and further secure the graft to the anchoring member.
The graft may also comprise means to guide a second expandable anchoring member to the proximal end of the graft. Preferably, the guiding means comprise guide strands connected to a proximal extremity of the graft. The anchoring member can then be advanced up the guide strands until the graft overlaps the second anchoring member. Expansion of the second anchoring member secures the proximal end of the graft.
177 Citations
22 Claims
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1. A graft delivery system comprising:
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a) an elongated catheter with proximal and distal ends and a means for expanding an expandable anchoring member on a distal portion of the catheter; b) an expandable anchoring member with proximal and distal ends mounted on the means for expanding; c) an aortic graft in a radially compressed state with proximal and distal ends and mounted on the catheter proximally adjacent to, and non-overlapping the proximal end of, the anchoring member; and d) drawing means secured to the distal end of the graft and configured to pull the distal end of the graft to overlap the proximal end of the anchoring member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A graft delivery system comprising:
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a) an elongated catheter with proximal and distal ends; b) a self-expanding anchoring member with proximal and distal ends mounted on a distal portion of the catheter; c) an aortic graft in a radially compressed state with proximal and distal ends and mounted on the catheter proximally adjacent to, and non-overlapping the proximal end of, the anchoring member; and d) drawing means secured to the distal end of the graft and configured to pull the distal end of the graft to overlap the proximal end of the anchoring member. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method for repairing a portion of a patient'"'"'s vasculature comprising the steps of:
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a) providing a catheter assembly having; 1) an elongated catheter with proximal and distal ends and a means for expanding an expandable anchoring member on a distal portion of the catheter, 2) an expandable anchoring member with proximal and distal ends mounted on the expanding means, 3) an aortic graft in a radially compressed state with proximal and distal ends and mounted on the catheter proximally adjacent to, and non-overlapping the proximal end of, the anchoring member, and 4) drawing means secured to the distal end of the graft and configured to pull the distal end of the graft to overlap the proximal end of the anchoring member; and b) advancing the catheter assembly with the graft to the desired location in the patient'"'"'s vasculature; c) operating the drawing means to pull the distal end of the graft to overlap the proximal end of the anchoring member; and d) expanding the anchoring member to expand and anchor the graft within the patient'"'"'s vasculature. - View Dependent Claims (18, 19)
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20. A method for repairing a portion of a patient'"'"'s vasculature comprising the steps of:
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a) providing a catheter assembly having; 1) an elongated catheter with proximal and distal ends, 2) a self-expanding anchoring member with proximal and distal ends mounted on a distal portion of the catheter, 3) an aortic graft in a radially compressed state with proximal and distal ends and mounted on the catheter proximally adjacent to, and non-overlapping the proximal end of, the anchoring member, and 4) drawing means secured to the distal end of the graft and configured to pull the distal end of the graft to overlap the proximal end of the anchoring member; and b) advancing the catheter assembly with the graft to the desired location in the patient'"'"'s vasculature; c) operating the drawing means to pull the distal end of the graft to overlap the proximal end of the anchoring member; and d) allowing the self-expanding anchoring member to expand and anchor the graft within the patient'"'"'s vasculature. - View Dependent Claims (21, 22)
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Specification