Repositionable and recapturable vascular stent/graft
View Patent ↗A collapsible medical device and associated method for grafting a lumen of selected organs and vessels, wherein the medical device is shaped from a shape memory fabric. The device is preferably made from a continuous tubular fabric and each end terminates with an open end for passage there through. Each end further includes a securing member attached to an outer perimeter of the end, wherein a substantial plane formed by the perimeter intersects the longitudinal axis of the tubular fabric at either an acute or obtuse angle. The fabric may be heat treated within a mold in order to substantially set a desired shape of the device. The securing member may also attach to the end of a guide wire or delivery catheter, thereby allowing deployment and later retrieval after deployment of the device.
1. A collapsible medical device, comprising a fabric including a plurality of woven strands, said medical device having a proximal end and a distal end, each end having permanently attached thereto a clamp for securing the woven strands, thereby inhibiting unraveling of the fabric, said at least one of the clamps including a means for releasable attachment thereof to a delivery device, said medical device having a relaxed configuration, wherein said relaxed configuration includes a passageway extending through a central portion between each end, and further including an aperture formed in a side portion of the relaxed configuration, said medical device further having a collapsed configuration for delivery through a channel in a patient's body.
2. The device according to claim 1 , wherein both ends include markers spaced a predetermined distance around an edge of each of said ends.
3. The device according to claim 1 , wherein said medical device is formed from a metal fabric consisting of a plurality of woven metal strands.
4. The device according to claim 1 , wherein said clamps are aligned on an outer edge of each of said ends.
5. The device as recited in claim 1 , wherein said relaxed configuration is in a bent shape.
6. A collapsible medical device, comprising a fabric including a plurality of woven strands, said medical device having a proximal end and a distal end, each end having permanently attached thereto a clamp member for inhibiting unraveling of the fabric, at least one of the clamp members having means for releasable attachment to a delivery device, said medical device having a relaxed configuration, wherein said relaxed configuration includes a passageway extending through a central portion between each end, and further wherein at least one end of said relaxed configuration has a width greater than the width of a central portion of the relaxed configuration, said medical device further having a collapsed configuration for delivery through a channel in a patient's body.
7. The device according to claim 6 , wherein at least one end includes markers spaced a predetermined distance around an edge of said at least one end.
8. The device according to claim 6 , wherein both ends include markers spaced a predetermined distance around an edge of each of said ends.
9. The device according to claim 6 , wherein said medical device is formed from a metal fabric consisting of a plurality of woven metal strands.
10. The device according to claim 6 , wherein said clamp members are aligned on an outer edge of each of said ends.