Stent with reduced thrombogenicity
AssigneePurdue Research Foundation
InventorsCharles F. Babbs, Neal F. Fearnot, Stephen F. Badylak, Leslie A Geddes, Michael C. Hiles, Joe D. Bourland
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Abstract
A tissue graft construct and method for repairing the inner linings of damaged or diseased vertebrate vessels is described. The method comprises the steps of positioning a tissue graft construct within a blood vessel at a site in need of repair. The tissue graft construct comprises a stent (3) covered with submucosal tissue (4) wherein the stent (3) is formed for receiving the distal end of a catheter (1) having an inflatable balloon (2).
Claims4
A prosthetic device for repairing the inner linings of damaged or diseased vertebrate vessels, said device comprising
- an implantable cylindrical shaped expandable member having a luminal and exterior surface, wherein expansion of said member increases the circumference of said member;
- and
- a layer of submucosal tissue fixed to the luminal and exterior surface of said member;
- wherein said layer of submucosal tissue comprises a narrow sheet of submucosal tissue wrapped longitudinally about the luminal and exterior surface of the stent a plurality of times to form loops of submucosal tissue wherein each loop partially overlaps another loop of submucosal tissue.
An improved vascular stent for expanding obstructed vessels, said stent formed as an expandable tube having an exterior and luminal surface, the improvement comprising a layer of submucosal tissue fixed to the external surface of the stent, wherein a strip of submucosal tissue is wrapped longitudinally about the luminal and exterior surfaces of the stent a plurality of times to form loops of submucosal tissue and wherein each loop of submucosal tissue partially overlaps an adjacent loop of submucosal tissue.
Dependencies are inferred from the claim text.