Patent ID: 7452374
Filing Date: 2008-11-18
Classification: A61F,A61L,A61P

Abstract:
1. A self-sealing arteriovenous access graft comprising: a polymeric inner layer defining a lumen through which blood may flow; an outer textile layer concentrically disposed about the inner layer, said outer textile layer comprising biodegradable fibers comprising calcium alginate fibers; and an intermediate self-sealing tubular layer concentrically positioned between the inner and outer layers, said self-sealing layer being uninterrupted circumferentially about, and in full face-to-face contiguous contact with, said inner layer, said self-sealing layer comprising a biocompatible polymer, said self-sealing layer having a thickness of about 0.1 mm. to about 3 mm. which prevents blood leakage when punctured for dialysis, wherein said graft is configured to have a burst pressure of at least about 80 psi after repeated punctures for dialysis.