Tri-leaflet all carbon heart valve

Details Tri-leaflet all carbon heart valve Tri-leaflet all carbon heart valve

1992-01-16

1993-05-04

Green, Randall L.

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

Heart valve

Having rigid or semirigid pivoting occluder

A61F 224

Patent

active

052077071

ABSTRACT:
A tri-leaflet heart valve wherein the leaflets have supporting ears adapted to slide in curved tracks provided in an annular body. The leaflets ears are further supported and guided by conical-segment surfaces adjacent the curved grooves. A common stop between two grooves for adjacent leaflets limits the motion of the leaflets as the valve closes. Posts between opposed grooves for each leaflet arrest the motion of a leaflet if the leaflets are closing simultaneously closed position. Each leaflet comprises a substantially planar surface with a central vertex where all three leaflets meet in closed position. Edges of the leaflets adjacent the curved grooves are canted up-stream and are scalloped to form ears which slide in the curved grooves.

REFERENCES:
patent: 3952334 (1976-04-01), Bokros et al.
patent: 3969130 (1976-07-01), Bokros
patent: 4406022 (1983-09-01), Roy
patent: 4451937 (1984-06-01), Klawitter
patent: 4624822 (1986-11-01), Arru et al.
patent: 4778461 (1988-10-01), Pietsch et al.
patent: 4820299 (1989-04-01), Philippe et al.
patent: 4888009 (1989-12-01), Lederman et al.
patent: 4888010 (1989-12-01), Bokros
patent: 5026391 (1991-06-01), McQueen et al.
patent: 5061278 (1991-10-01), Bicer
patent: 5123918 (1992-06-01), Perrier

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