TY - JOUR
T1 - PORTABLE COMPOSITIVE SYSTEM FOR NONINVASIVE AND AMBULATORY MONITORING OF CARDIOVASCULAR VARIABLES.
AU - Yamakoshi, Ken ichi
AU - Kawarada, A.
AU - Hosoya, M.
AU - Tanaka, S.
AU - Shibata, M.
AU - Ando, J.
AU - Kamiya, A.
AU - Shimazu, H.
AU - Fukuoka, M.
AU - Ito, H.
PY - 1984/4/1
Y1 - 1984/4/1
N2 - A portable compositive system for the noninvasive monitoring of cardiac output (CO), arterial blood pressure (BP) and e. c. g. of the unconstrained subject is described. The system consisted of a measuring unit, recording unit, and data processing and analysing unit, the former two units being taken with a subject. The measuring unit was composed of two parts; one is for obtaining the first derivative of the transthoracic admittance variations (dY/dt) and e. c. g. using tetrapolar admittance cardiography, and the other for detecting the photoplethysmographic pulsations (PG) in the finger following the application of counterpressure (cuff pressure; P//c). The former one can measure CO based on the Kubicek's method, while the latter can determine the indirect BP based on the volume-oscillometric method. A portable 4-ch cassette data recorder was used to record the output signals from the measuring unit.
AB - A portable compositive system for the noninvasive monitoring of cardiac output (CO), arterial blood pressure (BP) and e. c. g. of the unconstrained subject is described. The system consisted of a measuring unit, recording unit, and data processing and analysing unit, the former two units being taken with a subject. The measuring unit was composed of two parts; one is for obtaining the first derivative of the transthoracic admittance variations (dY/dt) and e. c. g. using tetrapolar admittance cardiography, and the other for detecting the photoplethysmographic pulsations (PG) in the finger following the application of counterpressure (cuff pressure; P//c). The former one can measure CO based on the Kubicek's method, while the latter can determine the indirect BP based on the volume-oscillometric method. A portable 4-ch cassette data recorder was used to record the output signals from the measuring unit.
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M3 - Conference article
AN - SCOPUS:0021406905
SN - 0021-3292
VL - 22
SP - 304
EP - 305
JO - Japanese Journal of Medical Electronics and Biological Engineering
JF - Japanese Journal of Medical Electronics and Biological Engineering
ER -