The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 1983
Filed:
May. 11, 1981
Robert L Kaster, Plymouth, MN (US);
Other;
Abstract
Heart valve for implantation as a surgical prosthesis including a valve housing having an orifice ring and three pairs of structural short and long projections extending inwardly and centrally within the plane of the orifice ring. A like plurality of leaflet occluders pivot between closed and open positions providing for uniform hemodynamic flow of blood through the heart valve. Each of the leaflet occluders is substantially one-third of a circle and includes on a proximal surface side having inner and outer pivot sockets of oval concentricity. The pivot sockets of each leaflet occluder freely engage about short and long projections extending inwardly from the valve ring and substantially equally spaced within three sectors of the valve orifice. The short and long projections also function as closed position stops and open position stops during symmetrical and synchronous movement of the leaflet occluders.