PORTABLE COMPOSITIVE SYSTEM FOR NONINVASIVE AND AMBULATORY MONITORING OF CARDIOVASCULAR VARIABLES.

Ken ichi Yamakoshi, A. Kawarada, M. Hosoya, S. Tanaka, Masahiro Shibata, J. Ando, A. Kamiya, H. Shimazu, M. Fukuoka, H. Ito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationJapanese Journal of Medical Electronics and Biological Engineering
PublisherJapan Soc of Medical Electronics & Biological Engineering
Pages304-305
Number of pages2
Volume22
Publication statusPublished - 1984 Apr
Externally publishedYes

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Blood pressure
Cardiography
Monitoring
Derivatives

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Yamakoshi, K. I., Kawarada, A., Hosoya, M., Tanaka, S., Shibata, M., Ando, J., ... Ito, H. (1984). PORTABLE COMPOSITIVE SYSTEM FOR NONINVASIVE AND AMBULATORY MONITORING OF CARDIOVASCULAR VARIABLES. In Japanese Journal of Medical Electronics and Biological Engineering (Vol. 22, pp. 304-305). Japan Soc of Medical Electronics & Biological Engineering.

PORTABLE COMPOSITIVE SYSTEM FOR NONINVASIVE AND AMBULATORY MONITORING OF CARDIOVASCULAR VARIABLES. / Yamakoshi, Ken ichi; Kawarada, A.; Hosoya, M.; Tanaka, S.; Shibata, Masahiro; Ando, J.; Kamiya, A.; Shimazu, H.; Fukuoka, M.; Ito, H.

Japanese Journal of Medical Electronics and Biological Engineering. Vol. 22 Japan Soc of Medical Electronics & Biological Engineering, 1984. p. 304-305.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yamakoshi, KI, Kawarada, A, Hosoya, M, Tanaka, S, Shibata, M, Ando, J, Kamiya, A, Shimazu, H, Fukuoka, M & Ito, H 1984, PORTABLE COMPOSITIVE SYSTEM FOR NONINVASIVE AND AMBULATORY MONITORING OF CARDIOVASCULAR VARIABLES. in Japanese Journal of Medical Electronics and Biological Engineering. vol. 22, Japan Soc of Medical Electronics & Biological Engineering, pp. 304-305.
Yamakoshi KI, Kawarada A, Hosoya M, Tanaka S, Shibata M, Ando J et al. PORTABLE COMPOSITIVE SYSTEM FOR NONINVASIVE AND AMBULATORY MONITORING OF CARDIOVASCULAR VARIABLES. In Japanese Journal of Medical Electronics and Biological Engineering. Vol. 22. Japan Soc of Medical Electronics & Biological Engineering. 1984. p. 304-305
Yamakoshi, Ken ichi ; Kawarada, A. ; Hosoya, M. ; Tanaka, S. ; Shibata, Masahiro ; Ando, J. ; Kamiya, A. ; Shimazu, H. ; Fukuoka, M. ; Ito, H. / PORTABLE COMPOSITIVE SYSTEM FOR NONINVASIVE AND AMBULATORY MONITORING OF CARDIOVASCULAR VARIABLES. Japanese Journal of Medical Electronics and Biological Engineering. Vol. 22 Japan Soc of Medical Electronics & Biological Engineering, 1984. pp. 304-305
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