Bicurved leaflet(s) prosthetic heart valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 12, 1991
Issued Date -
N/A
app pub date -
May 25, 1990
filing date -
Jun 30, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A mechanical artificial heart valve is provided and consists of an annular shaped orifice, to which a single (or multiple) bicurved leaflet(s) is (are) hinged. The curves are planar and are generated from two intersecting circular arcs. The valve is constructed to cause a predominately accelerating flow through the orifice. This significantly reduces the flow separation from the leaflets. In addition, the leaflets are shaped so as to reduce the closing reflux volume through the orifice during the regurgitation phase of flow. These improvements tend to significantly decrease the work load on the heart.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully