| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform the measurement of a blood pressure at a high precision, and also, reduce the burden to a subject. SOLUTION: A wave transmitting section 21 converts an electric signal, and transmits an electromagnetic wave or an ultrasonic wave, e.g. an infrared ray into the body, and a wave receiving section 22 receives the reflected wave in the body, and converts it into an electric signal. The frequency (f) of a free- running oscillator 11, which is measured by a frequency measuring section 31, is converted into a blood pressure value P based on a correlative parameter called in a blood pressure calculating section 32. Then, on a display section 35, the display of the blood pressure value or a blood pressure waveform is performed in order.</p> |
