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Bioprosthetic conduits

  • US 6,197,143 B1
  • Filed: 10/26/1998
  • Issued: 03/06/2001
  • Est. Priority Date: 04/24/1996
  • Status: Expired due to Fees
First Claim
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1. A method of making a bioprosthetic conduit, comprising the steps of:

  • (a) taking a cylindrical mould, having a longitudinal axis, and having circumferentially spaced protuberances which extend radially from said longitudinal axis;

    (b) curving a layer of a biocompatible sheet material around the cylindrical mould, and joining the opposed edges of the layer together along a longitudinal axis, parallel to the longitudinal axis of the mould, to form a tubular layer having protuberances corresponding to those of the mould; and

    (c) removing the tubular layer from the mould and turning it inside out to form a cylindrical conduit, the conduit having sinuses corresponding to the protuberances possessed by the tubular layer whilst still on the mould, and the conduit being fully fixed by a chemical means;

    after removal or while still on the mould.

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