Prosthetic heart valve

Details Prosthetic heart valve Prosthetic heart valve

1989-10-10

1992-05-26

Shay, Randy C.

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

Heart valve

Having rigid or semirigid pivoting occluder

A61F 224

Patent

active

051163675

ABSTRACT:
A bi-leaflet heart valve having an improved hinge arrangement that, in combination with the disclosed curved surfaces of the leaflets, allows the valve to respond more quickly to flow reversal and minimizes fluttering of the leaflets in the open position. The leaflets are slidably and pivotally mounted in a heart valve body for movement between closed and open positions. The leaflets have notches which matingly engage complementary surfaces on pivot projections extending inward from the valve body sidewall. The shape and relationship of these complementary surfaces and the two-dimensional curvature of the leaflets provides for improved operating characteristics.

REFERENCES:
patent: 4011601 (1977-03-01), Clune et al.
patent: 4078268 (1978-03-01), Possis
patent: 4159543 (1979-07-01), Carpentier
patent: 4373216 (1983-02-01), Klawitter
patent: 4425670 (1984-01-01), Figuera
patent: 4484365 (1984-11-01), Murguet et al.
patent: 4535484 (1985-08-01), Marconi
patent: 4872875 (1989-10-01), Hwang
patent: 4892540 (1990-01-01), Vallana

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