Human cardiac valve placement with marine mammal ventricular outflow (aortic or pulmonary) valve
First Claim
1. A method of treating a human patient, comprising:
- i. providing a marine mammal trileaflet valve, andii. surgically implanting said valve in said patient.
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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.
27 Citations
23 Claims
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1. A method of treating a human patient, comprising:
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i. providing a marine mammal trileaflet valve, and ii. surgically implanting said valve in said patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of treating valve dysfunction in a human patient, comprising:
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i. providing a marine mammal ventricular outflow valve, and ii. replacing an existing dysfunctional aortic, mitral, tricuspid or pulmonary valve in said patient with said ventricular outflow valve. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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- 18. A composition, consisting of a fixed, marine mammal ventricular outflow valve having a sewing skirt.
- 21. An excised, marine mammal valve having an inlet side and further comprising a flexible sewing skirt extending from said inlet side, said flexible skirt configured so as to facilitate suturing of the valve in a patient.
Specification