04056854 is referenced by 696 patents and cites 5 patents.

An artificial valve remotely placeable in a blood vessel without major surgery to supplant the function of a malfunctioning natural valve including an expansible check valve remotely placed in a constricted configuration through the vessel and a remotely removable constraint for selective expansion of the check valve for sealing engagement thereof within the walls of the vessel at the desired location.

Title
Aortic heart valve catheter
Application Number
5/727528
Publication Number
4056854
Application Date
September 28, 1976
Publication Date
November 8, 1977
Inventor
Robert A Poirier
Rochester
MN, US
John W Boretos
Rockville
MD, US
Agent
Thomas G Ferris
Norman J Latker
John S Roberts Jr
Assignee
The United States of America represented by the Department of Health Education and Welfare
DC, US
IPC
A61F 1/22
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