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Laminated self-sealing vascular access graft

  • US 6,319,279 B1
  • Filed: 10/15/1999
  • Issued: 11/20/2001
  • Est. Priority Date: 10/15/1999
  • Status: Expired due to Fees
First Claim
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1. A vascular access graft that can be punctured and will seal about the puncture hole, comprising:

  • an inner tube defining an inner lumen of the graft;

    an outer tube concentrically disposed about the inner tube; and

    an intermediate tubular layer concentrically positioned between the inner and outer tubes, the intermediate tubular layer comprising, in longitudinal cross-section, alternating regions of materials of different densities, one of the materials being porous to blood, wherein the material of the inner tube is the same as the material of the outer tube.

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