Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Means to regulate or vary operation of device
Patent
1975-06-06
1976-05-04
Frinks, Ronald L.
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Means to regulate or vary operation of device
1375278, A61F 122
Patent
active
039538982
ABSTRACT:
A heart valve including a generally annular body and a disc within the body pivotable about a centerline of the disc. Vanes project from one face of the disc in a direction opposite the flow direction through the valve, fluid flow against the vanes causing the valve to open. A baffle extends across the body adjacent the face of the disc opposite the face from which the vanes project, the baffle directing fluid flowing in the no-flow direction of the valve against the disc so as to close the valve. The disc portions on opposite sides of the pivot axis are of substantially equal size and weight. The disc is limited to pivoting through an acute angle, and in certain embodiments may also rotate in its own plane. The vanes may be arranged on only one half the disc, or symmetrically on the entire disc, and the vanes are preferably spaced apart to define openings between them to accommodate fluid flow. A second baffle may extend across the body adjacent the face of the disc from which the vanes project.
REFERENCES:
patent: 3445863 (1969-05-01), Wada
patent: 3448465 (1969-06-01), Pierce et al.
patent: 3476143 (1969-11-01), Kaster
patent: 3513485 (1970-05-01), Davila
patent: 3546711 (1970-12-01), Bokros
patent: 3903548 (1975-09-01), Nakib
Frinks Ronald L.
Levine Alan H.
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