3613668 is referenced by 9 patents and cites 7 patents.

A sphygmomanometer operable with one hand has a cylindrical housing in which a pump for inflating a blood-flow-restricting sleeve is formed by a deflectable wall of the cylindrical housing. A meter for monitoring pressure is removably fitted on the end of the housing, and a control ring surrounds the housing axis between the meter and pump. A valve for bleeding the air from the sleeve is operated by rotation of the control ring. Means are provided for centering the pointer of the meter at a zero indication and for establishing the desired ratio of pressure to meter displacement. A timer is also provided which has a dial on the meter face and which is controlled by the ring.

Title
Sphygmomanometer with built-in timer
Application Number
04/811,940
Publication Number
3613668
Application Date
April 1, 1969
Publication Date
October 19, 1971
Inventor
Kummer Fritz
Roll Karl
Beck Charlotte
Assignee
Walter Beck KG Kontroll und Fernmessgerate
IPC
A61b 05/02
A61B 05/24
A61B 05/235
A61B 05/22
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