Flap-type prosthetic heart valve

Details Flap-type prosthetic heart valve Flap-type prosthetic heart valve

1982-11-01

1984-11-27

Frinks, Ronald L.

Fluid handling

Flow affected by fluid contact, energy field or coanda effect

Means to regulate or vary operation of device

1375121, 137527, A61F 122

Patent

active

044843658

ABSTRACT:
A prosthetic cardiac valve comprises a collar adapted to be secured in a blood-flow passage, a pair of pivots in the collar extending generally parallel to each other and spaced apart perpendicularly to the direction of flow through the passage, and respective flaps carried on the pivots and having inner edges. The flaps are pivotal on the respective pivots between closed positions transverse to and blocking the passage with the inner edges touching and lying between the respective pivot axes and open positions extending generally parallel to the flow direction downstream from the respective pivots. One of the flaps is constructed so that when closed it diverts flow in the passage at the other flap to move same into the open position. One of the pivot axes is downstream of the other axis and the respective flap is of substantially greater surface area than the other flap.

REFERENCES:
patent: 3476143 (1969-11-01), Kaster
patent: 4078268 (1978-03-01), Possis
patent: 4363142 (1982-12-01), Meyer

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