Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Heart valve – Having rigid or semirigid pivoting occluder
Patent
1983-07-22
1986-09-16
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Heart valve
Having rigid or semirigid pivoting occluder
A61F 224
Patent
active
046120114
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.
REFERENCES:
patent: 3176712 (1965-04-01), Ramsden
patent: 3416562 (1968-12-01), Freeman
Hufnagel, et al., "Comparative Study of Cardiac and Vascular Implants in Relation to Thrombosis", vol. 61, No. 1, pp. 11-66, Jan. 1967.
"Prosthetic Replacement of the Aortic Valve", Sauvage et al., pp. 38-80.
"Mitral-valve Mechanics . . . ", Medical and Biological Engineering, Nov., 1973, pp. 691-702.
"Pressure Drop and Velocity Fields . . . ", European Society for Artificial Organs, 1983, pp. 3-20.
"Stress Analysis of Porcine Bioprosthetic Heart Valves in vivo", Journal of Biomedical Materials Research, vol. 16, pp. 811-825.
Apley Richard J.
Isabella David
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