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Double-velour synthetic vascular graft

  • US 4,047,252 A
  • Filed: 01/29/1976
  • Issued: 09/13/1977
  • Est. Priority Date: 01/29/1976
  • Status: Expired due to Term
First Claim
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1. A warp-knitted, double-velour synthetic vascular graft of a material to which tissue can adhere, comprising a tubular trellis of a non-texturized yarn, said trellis being provided with a multiplicity of knitted fibrous loops of a texturized yarn projecting both outwardly and inwardly from the surfaces of said trellis and presenting a pile mat of filamentary material receptive to tissue ingrowth on the outer and inner surfaces of said trellis, the ratio of the length of said loop yarn to the length of said trellis yarn in said graft lying between 1.75 and 4.50 said loops being effective to improve the rate of growth of tissue into said graft.

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