Patent ID: 11937931
Assignee: DELTA KOGYO CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A  B  G | IPC A  B

Claim 0:
1. A physical condition determination device which determines a physical condition of a person by analyzing a biosignal collected by a biosignal measurement device which is disposed in contact with a back of the person and captures, in a non-constraining manner, the biosignal propagated through a body surface of the back, the physical condition determination device comprising:
a heart rate-related index calculation unit which finds a time-series waveform of an index corresponding to a variation in heart rate from a time-series waveform of the biosignal;
a blood pressure-related index calculation unit which finds a time-series waveform of an index corresponding to a variation in blood pressure from the time-series waveform of the biosignal; and
a physical condition sudden change determination unit which specifies a preset time zone in which the time-series waveform obtained from the heart rate-related index calculation unit presents a predetermined waveform variation, as an appearance time of a sign of a sudden change in the heart rate, specifies a preset time zone in which the time-series waveform obtained from the blood pressure-related index calculation unit presents a predetermined waveform variation, as an appearance time of a sign of a sudden change in the blood pressure, and determines that a sudden change in the physical condition has occurred in a case where the appearance time of the sign of the sudden change in the heart rate and the appearance time of the sign of the sudden change in the blood pressure are within a predetermined time range.