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Artificial blood conduit

  • US 4,086,665 A
  • Filed: 12/16/1976
  • Issued: 05/02/1978
  • Est. Priority Date: 12/16/1976
  • Status: Expired due to Term
First Claim
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1. A blood conduit comprising:

  • a flexible inner tube for conducting a flow of blood and having a porous wall for permitting the development of a biologically stable interface between the interior surface of said inner tube and blood flow therethrough, said inner tube having a convoluted wall structure for providing flexibility without kinking;

    a flexible, non-porous outer tube concentrically enclosing said inner tube, for preventing contamination, said outer tube having a convoluted wall structure for providing flexibility without kinking;

    rigid ring means spaced along said conduit and located concentrically between said outer tube and said inner tube for providing radial strength to said conduit; and

    means affixing said ring means to said outer tube for providing said conduit with strength to resist collapse forces with axial components.

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