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Cell excluding sheath for vascular grafts

  • US 5,584,876 A
  • Filed: 04/29/1994
  • Issued: 12/17/1996
  • Est. Priority Date: 04/29/1994
  • Status: Expired due to Fees
First Claim
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1. A vascular graft in the form of a covered blood vessel which comprises:

  • a sheath surrounding a blood vessel derived from a donor;

    wherein the sheath comprises a microporous material; and

    wherein the sheath serves as a barrier to external cellular ingrowth into the blood vessel, while being permeable to macromolecules.

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