Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Heart valve – Flexible leaflet
Patent
1996-07-12
2000-12-26
Snow, Bruce
Prosthesis (i.e., artificial body members), parts thereof, or ai
Heart valve
Flexible leaflet
623 242, A61F 224
Patent
active
061652164
ABSTRACT:
The present invention provides a method of treating human cardiac valve dysfunction, by replacing the existing valve with a novel bioprosthesis of the present invention which comprises a marine mammal ventricular outflow (aortic or pulmonary) valve. The marine mammal ventricular outflow valve is treated by a fixative agent to sterilize, fix, increase the strength of the leaflets and lessen the antigenicity of the tissue valve. Following this step, the marine mammal ventricular outflow valve can either be stent-mounted or can be unstented. The stent-mounted marine mammal ventricular outflow valve can be used to replace a human aortic, mitral, or tricuspid valve, while the unstented marine mammal ventricular outflow valve can be used to replace a human aortic or pulmonary valve. Being a natural trileaflet valve, with symmetrical cusps and no muscle shelf within the leaflet, the marine mammal ventricular outflow valve presents superior hemodynamic advantages over the existing aortic porcine and bovine pericardial valves. The increase thickness of the leaflets result in a long-term durability, without the attendant disadvantages of re-replacing a bioprosthesis. Alternatively, a marine mammal trileaflet valve can be contructed from tissues such as pericardium and fascia lata.
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Agathos Efstathios Andreas
Snow Bruce
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