Microporous vascular graft
September 19, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3765414 Process for producing porous products Electrostatic spinning of tubular products Porous flexible vascular graft Implantable material Apparatus and method for in vivo extrapulmonary blood gas exchange Composite hollow fiber-type separation membranes, processes for the preparation thereof and their use Hollow fiber membrane for an artificial lung Patent #: 4770852 InventorsAssigneeApplicationNo. 246578 filed on 09/19/1988US Classes:623/1.54, Fiber623/1.42, Drug delivery623/1.44Having plural layersExaminersPrimary: Green, Randall L.Assistant: Jantorno, Stephanie L. Attorney, Agent or FirmForeign Patent References
International ClassA61F 002/06AbstractA vascular graft at least partially formed from porous hollow fibers, with at least some of the porous hollow fibers being located adjacent an inner surface of the vascular graft. The vascular grafts of the invention have a relatively small pore size for promoting tissue growth while inhibiting bleeding during the healing process. The porous hollow fibers used to form the vascular grafts of the invention further provide a storage situs for temporarily holding a drug or other material for delivery into the blood stream during the healing process. This storage capability may also be used for holding an inert gas while providing the graft with greater resilency and cushioning characteristics than achievable with presently available vascular grafts.Other References
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