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Stents for autologous tissue heart valve

  • US 5,755,782 A
  • Filed: 12/17/1993
  • Issued: 05/26/1998
  • Est. Priority Date: 01/24/1991
  • Status: Expired due to Term
First Claim
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1. An outer stent for securing an inner stent having a base and a plurality of posts extending therefrom and spaced around the base and tissue wrapped thereon, said outer stent spreadable from a relaxed position to a spread position, said outer and inner stents cooperating to form a heart valve implanted into a patient by use of sutures and needles, said outer stent comprising:

  • a base having a plurality of slots;

    a tensioning spring disposed around said base;

    a plurality of posts extending upwardly from said base, said posts adapted to register with said inner stent when said inner and outer stents are secured together, at least one of said posts including a window to allow the insertion of the posts of said inner stent therein;

    an elastic ring disposed around said base for allowing the securing of said outer stent to said patient; and

    a covering emplaced around said base and said posts and bonded to said base at a plurality of locations.

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