Central occluder semi-biological heart valve

• US 4,612,011 A
• Filed: 07/22/1983
• Issued: 09/16/1986
• Est. Priority Date: 07/22/1983
• Status: Expired due to Fees

• Current Assignee: Kautzky, Hans
• Original Assignee: Kautzky, Hans
• Inventors: Kautzky, Hans
• Primary Examiner(s): Apley, Richard J.
• Assistant Examiner(s): ISABELLA, DAVID J
• Application Number:
  US06/516,315
• Time in Patent Office: 1,152 Days
• Field of Search: 3/1.5, 3/1, 137/496, 137/859, 137/853
• US Class Current: 623/2.1
• CPC Class Codes: A61F 2/24 Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2424 Ball valves
• CPC Class Codes: A61K 35/30 Nerves; Brain; Eyes; Corneal cells; Cerebrospinal fluid; Neuronal stem cells; Neuronal precursor cells; Glial cells; Oligodendrocytes; Schwann cells; Astroglia; Astrocytes; Choroid plexus; Spinal cord tissue
• CPC Class Codes: A61K 35/34 Muscles; Smooth muscle cells; Heart; Cardiac stem cells; Myoblasts; Myocytes; Cardiomyocytes vascular smooth muscle A61K35/44
• CPC Class Codes: A61K 35/44 Vessels; Vascular smooth muscle cells; Endothelial cells; Endothelial progenitor cells
• CPC Class Codes: A61L 27/36 containing ingredients of undetermined constitution or reaction products thereof , e.g. transplant tissue, natural bone, extracellular matrix isolated natural compounds, e.g. collagen A61L27/24
• CPC Class Codes: A61L 27/507 for artificial blood vessels apparatus for applying cells on a blood vessel prosthesis A61F2/062

Abstract

A new prosthetic heart valve has a standard mounting ring with a centrally located occluder and a single piece biological circular flat membrane with a central aperture adapted to be selectively closed by the occluder.

The flexible membrane leans against the occluder in the closed position, and deflects axially away from the occluder when open. The occluder is held in position by spokes attached to the mounting ring, which also supports the membrane along its full periphery with one continuous readily accessible suture attachment.

Claims

1. A semi-biological heart valve prosthesis comprising a mounting ring, said mounting ring having a plurality of inwardly directed spokes, a central occluder connected to and supported by said spokes, and a flat circular anti-thrombogenic membrane connected to said mounting ring along its outer circumference by suturing, said membrane having an aperture adapted to be selectively closed by said occluder, said central occluder being circular and having a diameter of 80%±

10% of the inner diameter of the mounting ring, and is oval shaped in cross-section and approximately 20% to 30% wide axially in relation to said inner diameter.

2. The semi-biological heart valve prothesis according to claim 1, wherein said occluder has an annular depression at the line of contact with said membrane, the depth of said depression being approximately equal to the thickness of said membrane.

3. A semi-biological heart valve prosthesis comprising a mounting ring, said mounting ring having a plurality of inwardly directed spokes, a central occluder connected to and supported by said spokes, and a flat circular anti-thrombogenic membrane connected to said mounting ring along its outer circumference by suturing, said membrane having an aperture adapted to be selectively closed by said occluder, said membrane being formed of a flat piece of collagen tissue with a thickness of 1% to 5% of the inner diameter of the mounting ring and said aperture is 64%±

10% of the inner diameter of said ring.