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.


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    Title :

    BLOOD PRESSURE MEASUREMENT DEVICE, VEHICLE DEVICE, AND BLOOD PRESSURE MEASUREMENT PROGRAM


    Additional title:

    BLUTDRUCKMESSVORRICHTUNG, FAHRZEUGVORRICHTUNG UND BLUTDRUCKMESSPROGRAMM
    DISPOSITIF DE MESURE DE TENSION ARTÉRIELLE, DISPOSITIF VÉHICULE ET PROGRAMME DE MESURE DE TENSION ARTÉRIELLE


    Contributors:

    Publication date :

    2021-07-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    A61B DIAGNOSIS , Diagnostik / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



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