The purpose of the present invention is to measure the blood pressure of a living body in a noncontact and non-invasive manner. An experimental device 1 irradiates a subject 7 with microwaves from a transmission antenna 23 and a reception antenna 25 receives the reflected waves. Since the phase of the reflected wave varies with micro-movements of the body surface caused by the heartbeat, a pulse wave can be detected from the difference in phase between the emitted wave and the reflected wave. Additionally, the experimental device 1 continuously detects the blood pressure of the subject 7 from a blood pressure sensor 5 mounted on the subject 7 while continuously detecting the pulse wave. A frequency spectrum of the pulse wave of the subject 7 is generated by Fourier transformation of the pulse wave. A comparison of the spectrum and the blood pressure of the subject 7 detected by the blood pressure sensor 5 reveals a statistically significant positive correlation of the systolic blood pressure with an eighth harmonic wave from among frequency components of the pulse wave. On the basis of the experimental result, a device can be realized which detects a pulse wave of a subject in a noncontact and non-invasive manner using a microwave, and which measures the systolic blood pressure using the correlation therebetween.
BLOOD PRESSURE MEASUREMENT DEVICE, VEHICLE DEVICE, AND BLOOD PRESSURE MEASUREMENT PROGRAM
BLUTDRUCKMESSVORRICHTUNG, FAHRZEUGVORRICHTUNG UND BLUTDRUCKMESSPROGRAMM
DISPOSITIF DE MESURE DE TENSION ARTÉRIELLE, DISPOSITIF VÉHICULE ET PROGRAMME DE MESURE DE TENSION ARTÉRIELLE
2021-07-07
Patent
Electronic Resource
English
BLOOD PRESSURE MEASUREMENT DEVICE, VEHICLE DEVICE, AND BLOOD PRESSURE MEASUREMENT PROGRAM
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