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Heart valve prosthesis

  • US 4,680,031 A
  • Filed: 10/24/1984
  • Issued: 07/14/1987
  • Est. Priority Date: 11/29/1982
  • Status: Expired due to Fees
First Claim
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1. A heart valve prosthesis comprising:

  • a sewing ring made of biocompatible plastic material, the sewing ring having an exterior wall and a threaded interior,a first cloth of biocompatible material embedded in the sewing ring so that internal threads of the sewing ring and the exterior wall of the sewing ring are disposed on different sides of the first cloth, said first cloth being folded over the exterior wall of the sewing ring to provide a cloth ring capable of accepting sutures whereby the sewing ring can be surgically mounted into a suitable annulus in the human heart;

    a stent support ring made of biocompatible plastic material, the stent support ring having an interior wall and a threaded exterior, the threaded exterior of the stent support ring being configured and dimensioned to be threadably mountable within the internally threaded portion of the sewing ring;

    a second cloth of biocompatible material embedded in the stent support ring so that external threads of the stent support ring and the interior wall of the stent support ring are disposed on different sides of the second cloth, said second cloth being folded over the interior wall of the sewing ring to provide a cloth pocket capable of accepting a stent;

    a stent having commissural posts mounted in the pocket and thereby being substantially completely enclosed in the second cloth, andvalve means of animal origin mounted to the stent for functioning as a heart valve when said heart valve prosthesis is mounted into the human heart.

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