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Bioprosthetic heart valves having high calcification resistance

  • US 5,697,972 A
  • Filed: 06/07/1995
  • Issued: 12/16/1997
  • Est. Priority Date: 07/13/1994
  • Status: Expired due to Fees
First Claim
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1. A calcification resistant bioprosthetic heart valve prepared by binding an anionic hydrophilic polymer derivative of sulfonated polyethylene oxide covalently to tissue selected from the group consisting of porcine aortic valve and bovine pericardium.

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