| 摘要 |
<p>PROBLEM TO BE SOLVED: To stably measure a highly reliable blood pressure value. SOLUTION: From the fluctuation of the heart beat cycle TRR of a living body continuously detected by a heart beat cycle detection means 82, by a heart beat cycle fluctuation signal extraction means 84, first heart beat cycle fluctuation signals LFCRR which are prescribed frequency components lower than the respiration of the living body and second heart beat cycle fluctuation signals HFCRR which are the fluctuation components of the heart beat cycle generated almost synchronously to the respiration of the living body are extracted. When the strength ratio of the first heart beat cycle fluctuation signals LFCRR to the second heart beat cycle fluctuation signals HFCRR becomes equal to or less than a prescribed value, the blood pressure measurement of the living body by a blood pressure measurement means 80 is started by a blood pressure measurement starting means 86. Thus, since the blood pressure measurement is started only when the excitation of a sympathetic nerve is low and the tension of a person to be measured is sufficiently dissolved, the highly reliable blood pressure value is stably measured.</p> |
