Cardiac valve prosthesis

Details Cardiac valve prosthesis Cardiac valve prosthesis

1988-01-20

1988-10-04

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

047753781

ABSTRACT:
A cardiac valve prosthesis having an S-shaped curve of the closing body along the skeleton line. The inlet area and the outlet area are oriented toward the flow direction, while the opening force is exclusively effective in the central region behind the swivel axis. The S-shaped geometry favors the formation of a stable, closed vortex on the suction side of the closing body with a resultant reduction of deadwater in the aorta ascendens and a more favorable closing behavior. The aortic wall is less stressed, the aorta ascendens is better washed out, and pressure loss in the area of the opening angle is relatively low.

REFERENCES:
patent: 3113586 (1963-12-01), Edwards
patent: 4532659 (1985-08-01), Kaster

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