Percutaneous stent graft and method for vascular bypass
AssigneeThe General Hospital Corporation
InventorChieh-Min Fan
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Abstract
A prosthetic vessel graft assembly has a tube of synthetic graft material surrounding a stent at its distal end, together with a plurality of collapsible anchors projecting radially from the stent. The assembly mounts on an introducer that may be tunneled through skin or inserted in an opening and pushed down to a vessel for introducing the graft through the vessel side wall. The introducer is configured to follow a guide wire which is inserted via a needle through an opening in the side wall of the vessel. A peel-away sheath covers the stent, graft, and anchor members at the distal end keeping them collapsed against the tubular body.
Claims6
A prosthetic vessel comprising
- a generally tubular prosthesis formed of biocompatible synthetic material
- a stent carried within a distal end of said tubular prosthesis, said stent including a first section arranged generally coaxial with said tubular prosthesis, and
- an anchor portion comprising a plurality of gripping elements extending from the stent, the gripping elements being configured to self-deploy from a constrained position, in which the gripping elements are positioned in a substantially flat orientation against an outer wall of the prosthesis, to an open position upon deployment in which the gripping elements extend radially from said tubular prothesis for securing the end of the graft to a vessel in an end-to-side anastomosis when inserted through an opening in the vessel side wall, and a selectively removable peel-away sheath formed over the outer wall of the prosthesis, effective to maintain the gripping elements in the constrained position.
Dependencies are inferred from the claim text.