Surgery – Truss – Pad
Patent
1992-12-03
1994-12-27
Kamm, William E.
Surgery
Truss
Pad
128903, 128706, A61B 504
Patent
active
053756070
ABSTRACT:
A telemeter apparatus for counting a heart rate is provided which can accurately measure a heart beat signal without being affected by a radio interference between adjacent exercise test systems. A telemeter apparatus for counting a heart rate has: a transmitter unit to be attached to a subject using an exercise test system and for transmitting from a transmitting coil a heart beat signal detected from the subject, in the form of a magnetic signal; receiving coils respectively disposed at the both sides of a body of the exercise test system, and for receiving the magnetic signal transmitted from the transmitting coil; comparators for accepting the received signal from the corresponding receiving coil which has been amplified and rectified, and for comparing the accepted signal with a predetermined threshold level; an AND circuit to which output signals from the comparators are input; and a heart rate display unit for displaying a heart rate on the basis of an output signal from the AND circuit. The comparators, AND circuit, and heart rate display unit are disposed in the body of the exercise test system.
REFERENCES:
patent: 4830021 (1989-05-01), Thornton
patent: 4860763 (1989-08-01), Schminke
patent: 4976424 (1990-12-01), Sargeant et al.
patent: 5163439 (1992-11-01), Dardik
Getzow Scott M.
Kamm William E.
Nihon Kohden Corporation
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