Biological information measurement apparatus and biological information measurement method
A biological information and measurement device technology, applied in the field of biological information measurement, can solve the problems of reduced calculation accuracy of pulse wave propagation speed, difficult device miniaturization, etc.
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no. 1 approach
[0039] figure 1 It is a diagram showing a state where the biological information measurement device 1 according to the first embodiment of the present invention is attached to the wrist of the subject 100 . in addition, figure 2 is a front view of the biological information measurement device 1, image 3 It is a rear view of the living body information measuring device 1 . The biological information measurement device 1 is a measurement device that non-invasively measures the biological information of a subject 100 (living body). The living body information measurement device 1, for example figure 1As shown, it is a wristwatch-type wearable device attached to the wrist of the subject 100 . For example, the biological information measurement device 1 is an optical sphygmomanometer, and as biological information, blood pressure and arteriosclerosis can be measured in addition to the pulse wave velocity.
[0040] like figure 2 as well as image 3 As shown, the biological...
no. 2 approach
[0077] Figure 7 It is a block diagram showing the internal configuration of the living body information measurement device 2 according to the second embodiment of the present invention. In this embodiment, components common to those of the first embodiment are given the reference numerals used in the first embodiment, and explanations thereof are appropriately omitted. In the living body information measuring device 2 of the second embodiment, the method of obtaining "the temporal change of the blood vessel cross-sectional area A" used in the calculation of the pulse wave velocity PWV is different from the method described in the first embodiment. In addition, in the living body information measurement device 2 of the second embodiment, the volume pulse wave can be measured as the living body information of the subject 100 . About the other parts other than the above two points, it is the same as the living body information measurement device 1 of the first embodiment. Fig...
no. 3 approach
[0099] Figure 11 It is a block diagram showing the internal configuration of the living body information measurement device 3 according to the third embodiment of the present invention. In this embodiment, components common to those of the first embodiment are given the same reference numerals as those used in the first embodiment, and explanations thereof are appropriately omitted. The living body information measurement device 3 of the third embodiment measures the living body information of the subject 100 using LED (Light Emitting Diode: Light Emitting Diode) light instead of laser light. exist Figure 11 In the biological information measuring device 3 shown, with Figure 4 The illustrated living body information measuring device 1 is different in the irradiation control unit 412 , the optical sensor 52 (LED light emitting unit 512 and LED light receiving unit 522 ), the received light signal S2 , and the computing unit 424 .
[0100] The irradiation control unit 412 ...
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