Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Heart valve – Having rigid or semirigid pivoting occluder
Patent
1988-01-20
1989-07-11
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
048468304
ABSTRACT:
A cardiac valve prosthesis in which each closing body has a skeleton line which is curved in the area of the swivel axis. The curved area is followed by a rectilinear area, thus causing a linear cross sectional enlargement in the outlet region of the passage formed by the closing bodies. The opening and closing behavior of the cardiac valve becomes more stable, deadwater ares and vortex formation are largely avoided and natural blood flow is substantially undeviated.
REFERENCES:
patent: 4451937 (1984-06-01), Klawitter
Knoch Martin
Rau Gunter
Reul Helmut
Apley Richard J.
B. Braun Melsungen AG
Prizant James
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