Heartbeat rate indicator

Details Heartbeat rate indicator Heartbeat rate indicator

1982-11-04

1985-04-30

Cohen, Lee S.

Surgery

Truss

Pad

128710, A61B 502

Patent

active

045137536

ABSTRACT:
A heartbeat rate indicator has a detection electrode on the surface of the housing such as a wristwatch case and the element of a circuit-input portion in which the existence of a switch connected to the detection electrode prevents the element from destroying with electrostatic charge produced at the moment of touching the detection electrode with the human body, the clothes or the like.
Because in the non-depression state of the detection electrode, the detection electrode is connected elastically through the switch to one terminal of a power source so that the electrostatic charge produced at the moment of touching the detection electrode with the human body discharges to the one terminal of the power source.

REFERENCES:
patent: 4027663 (1977-06-01), Fischler et al.
patent: 4120294 (1978-10-01), Wolfe
patent: 4230127 (1980-10-01), Larson
patent: 4312358 (1982-01-01), Barney
patent: 4350164 (1982-09-01), Allain, Jr.

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