Biological measurement method

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United States of America Patent

PATENT NO 11872028
APP PUB NO 20210076978A1
SERIAL NO

16988176

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Abstract

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To perform respiratory monitoring and cardiac-output measurement on general patients, an aspect of a biological measurement apparatus includes: at least two electrodes that are attached to a living body; a power supply that causes an AC current to flow between the two electrodes; at least two coils that are placed so as to sandwich a line linking the two electrodes, and detect a magnetic field related to a change in the AC current accompanying a change in impedance of the living body; and a detection circuit that performs addition or subtraction of signals related to the magnetic field detected with the two coils, and outputs the signals as a change in the impedance.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTDTOKYO 100-8280

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funane, Tsukasa Tokyo, JP 28 81
Kandori, Akihiko Tokyo, JP 97 1432
Kawabata, Ryuzo Tokyo, JP 19 335
Mizoguchi, Takako Tokyo, JP 7 18
Ogata, Kuniomi Tokyo, JP 16 143

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