Cardiac valve with flaps pivoting on balls

Details Cardiac valve with flaps pivoting on balls Cardiac valve with flaps pivoting on balls

1990-12-12

1992-12-15

Frinks, Ronald

Prosthesis (i.e., artificial body members), parts thereof, or ai

Heart valve

Having rigid or semirigid pivoting occluder

137527, 1375121, A61F 224

Patent

active

051712636

ABSTRACT:
A cardiac valve comprises a ring, one or more flaps, the pivoting axis of the latter including two balls partly extending into a ring cavity and a conical flap cavity. This arrangement improves the life of the valve by reducing wear, stresses, friction and facilitates the assembly thereof if the ring is constituted by two concentric members and if the ring cavity extends on either side of the inner member. The invention more particularly applies to artificial valves installed in the heart in place of defective natural valves.

REFERENCES:
patent: 3953898 (1976-05-01), Bloch
patent: 4078268 (1978-03-01), Possis
patent: 4159543 (1979-07-01), Carpentier
patent: 4308624 (1982-01-01), Klawitter
patent: 4446577 (1984-05-01), Meyer et al.
patent: 4872875 (1989-10-01), Hwang
RCA Technical Notes, No. 1151, May 24, 1976, pp. 1-4; J. W. Knoll: "Prosthetic heart valve"-p. 2, lines 5-17; FIG. 1.

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