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

1989-10-25

1992-09-15

Isabella, David

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

Heart valve

Having rigid or semirigid pivoting occluder

A61F 224

Patent

active

051473909

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 convex base. The opening angle of the leaflets can be adjusted by varying the inclination of a wall of the triangular recess adjacent the center line. The opening angle should be adjusted, according to the teachings of the present invention, to minimize energy loss for a particular inside diameter of the heart valve. The optimum opening angle can be determined by in vitro testing using an adjustable valve and a pulse duplicator.

REFERENCES:
patent: 4254508 (1981-03-01), Bokros
patent: 4272854 (1981-06-01), 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 (1991-02-01), Knoch et al.

Affiliated with

Also associated with

Rating

Heart valve prosthesis with improved bi-leaflet pivot design does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heart valve prosthesis with improved bi-leaflet pivot design, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heart valve prosthesis with improved bi-leaflet pivot design will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-733355