Apparatus for monitoring degree of mental tension

Details Apparatus for monitoring degree of mental tension Apparatus for monitoring degree of mental tension

1989-02-16

1990-01-30

Jaworski, Francis

Surgery

Truss

Pad

128905, 128700, 128702, A61B 502

Patent

active

048966754

ABSTRACT:
An apparatus for monitoring mental tension comprises a first measuring unit for measuring a periodic wave related to a contraction activity of the heart of a person to be monitored; a detecting unit for detecting special waves which periodically appear in the periodic wave measured by the first measuring unit; a second measuring unit for measuring the interval at which the special wave are generated; a first processor for providing, as tension index values, a mean value of an interval train of the special waves and the magnitude of a respiration component of the fluctuation of the interval train; and a display unit for displaying the resulting tension index values.

REFERENCES:
patent: 4510944 (1985-04-01), Porges
patent: 4549552 (1985-10-01), Groch et al.
patent: 4727882 (1988-03-01), Schneider et al.
"Respiratory Sinus Arrythmia in Humans: How Breathing Pattern Modulates Heart Rate", by Judith Ann Hirsch and Beverly Bishop: American Journal of Physiology 241, pp. 620-629, 1981.
"Respiratory Sinus Arrythmia as an Index of Parasympathetic Cardiac Control During Active Coping", by Paul Grossman and Sven Svebak: Psychophysiology, vol. 24, no. 2, pp. 228-235, 1987.
"Development of RRV Measuring Unit with LCD", by Yoshiyuki Nakagaki, Michitaka Hirose and Takemocchi Ishii, 2nd Symposium on Human Interface, pp. 119-122, Oct. 29-30, 1986.
Japanese Patent Publication (KOKOKU), no. 61-43056, Date of Publication, Sep. 25, 1986, under Application no. 53-152718, Date of Application, Dec. 12, 1978, Applicant & Inventor, Iwao Saito, Entitled "Heartbeat Bio Feedback Apparatus".
Japanese Patent Publication (KOKAI), no. 61-272034, Date of Publication, Dec. 2, 1986, under Application no. 60-113474, Date of Application, May 27, 1985, Applicant, Mitsubishi Denki Kabushiki Kaisha, Inventor Hideaki Yoshioka, Entitled "Apparatus for Measuring Respiratory Circulating Function".

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