Pressure gauge for sphygmomanometers

Details Pressure gauge for sphygmomanometers Pressure gauge for sphygmomanometers

A - Human Necessities

61

B

73/101, 73/8

A61B 5/02 (2006.01) A61B 5/022 (2006.01) G01L 7/08 (2006.01) G01L 7/10 (2006.01)

Patent

CA 1113270

A B S T R A C T A pressure gauge for sphygmomanometers, having a pressure capsule with a diaphragm wall, a pointer on a rota- table spring-biased pointer shaft, and a drive mechanism connecting the diaphragm wall to the pointer shaft by pick- ing up and magnifying the displacements of the diaphragm wall, the drive mechanism including a sensing member on a rotatable sensing shaft, in contact with the diaphragm wall, and a magnifying gear drive consisting of a drive arm on the sensing shaft with gear teeth forming a gear segment of large radius, in driving engagement with a pinion on the pointer shaft. The drive arm may be bendable to adjust the gear drive ratio.

323960

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