Heart valve prosthesis with improved bi-leaflet pivot design

Details Heart valve prosthesis with improved bi-leaflet pivot design Heart valve prosthesis with improved bi-leaflet pivot design

1992-06-11

1993-03-09

Isabella, David J.

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

Heart valve

Having rigid or semirigid pivoting occluder

A61F 224

Patent

active

051923130

ABSTRACT:
A bi-leaflet heart valve having an annular body and a pair of leaflets. The leaflets pivot around improved ears, whose motion is constrained by generally triangular recesses. The triangular recesses have a pivotal vertex in proximity to a centerline of the annular base and on the upstream side of the heart valve. Opposite the pivotal vertex is a slightly concave base. An upstream wall of the recess is convex.

REFERENCES:
patent: 4254508 (1981-03-01), Bokros
patent: 4272854 (1981-03-01), Bokros
patent: 4326304 (1982-04-01), Klawitter
patent: 4328592 (1982-05-01), Klawitter
patent: 4406022 (1983-09-01), Roy
patent: 4443894 (1984-04-01), Klawitter
patent: 4451937 (1984-06-01), Klawitter
patent: 4888010 (1989-12-01), Bokros
patent: 4995881 (1992-02-01), Knoch
patent: 5147390 (1992-09-01), Campbell

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