04291420 is referenced by 305 patents and cites 4 patents.

An artificial, triple-lobed semilunar valve is disclosed for replacing the aortic or pulmonary valve in the heart. The valve includes a flexible suture ring which conforms to the shape of the aortic root and three flexible pockets which are mounted within the suture ring. When fluid flows through the suture ring in one direction, the pockets bend outwards to the vessel wall and lie free-floating in the fluid, thereby permitting fluid to flow through the valve. However, when the fluid begins to flow in the opposite direction, the pockets open and contact one another to close the valve thereby preventing fluid flow in the opposite direction.

Title
Artificial heart valve
Application Number
463135
Publication Number
4291420
Application Date
June 13, 1980
Publication Date
September 29, 1981
Inventor
Helmut Reul
Duren
DE
Agent
Cushman Darby and Cushman
Assignee
Medac Gesellschaft fur Klinische Spezialpraparate mbH
DE
IPC
A61F 1/22
View Original Source