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High profile fabric graft for arteriovenous access

  • US 6,547,820 B1
  • Filed: 10/03/2000
  • Issued: 04/15/2003
  • Est. Priority Date: 10/03/2000
  • Status: Expired due to Fees
First Claim
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1. A synthetic fabric tubular vascular graft comprising:

  • a first tubular fabric layer having a pattern of yarns interlaced to form a smooth inner surface and an opposed outer surface; and

    a second tubular fabric layer having a pattern of yarns different from said pattern in said first layer interlaced to form an exterior surface and having filaments of yarns raised in loops above said exterior surface to form a raised or velour texture, wherein said loops extend from about 1 mm to about 5 mm in length from said exterior surface and further wherein at least one yarn from said first fabric layer is interlaced with yarns of said second fabric layer to secure said second fabric layer to first fabric layer and further wherein said yarns include warp and fill yarns woven to form said first and said second fabric layers, provided that said warp and said fill yarns of said first fabric layer are woven in a plain pattern and said warp and said fill yarns of said second fabric layer are woven in a twill or a satin pattern.

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