Abstract: A closure for sealing punctures in blood vessels utilizes a sheet adapted to conform to the inner surface of a blood vessel which sheet has a plurality of barbs attached to one surface. A pusher rod connects to the barbed surface. The sheet is pushed through a sheath that has been inserted into the puncture until the sheet is within the blood vessel. Then, the pusher rod pulls the sheet against the blood vessel inner wall to anchor it over the puncture. The pusher rod is then released from the sheet and both the sheath and pusher rod are removed completing the closure.
Abstract: A device for closing or connecting blood vessels has a plurality of micro miniature barb which pierce the wall of the blood vessel and anchor the device in place. In one embodiment the fastener is comprised of a male member and a female member which are fastened to blood vessel segments with the micro miniature barbs. The male and female members are joined together by inserting the male member into the female member to form a permanent coupling. The device can also be used for opening a blood vessel which has been narrowed by disease or trauma.
Type:
Grant
Filed:
February 18, 1993
Date of Patent:
October 19, 1993
Assignee:
Shadyside Hospital
Inventors:
Mark H. Wholey, William E. Novogradac, deceased
Abstract: A device for closing or connecting blood vessels has a plurality of micro miniature barb which pierce the wall of the blood vessel and anchor the device in place. In one embodiment the fastener is comprised of a male member and a female member which are fastened to blood vessel segments with the micro miniature barbs. The male and female members are joined together by inserting the male member into the female member to form a permanent coupling. The device can also be used for opening a blood vessel which has been narrowed by disease or trauma.
Type:
Grant
Filed:
February 28, 1992
Date of Patent:
August 10, 1993
Assignee:
Shadyside Hospital
Inventors:
Mark H. Wholey, William E. Novogradac, deceased