PROBLEM TO BE SOLVED: To provide a biological information measurement device capable of accurately evaluating a sclerosis degree of a blood vessel in a noninvasive manner without pressurization.SOLUTION: A biological information measurement device 1 comprises: an irradiation section irradiating light or a sound wave as a measurement wave onto a living body a detection section detecting the measurement wave passing through the living body and an operation section 420 evaluating a time change of a blood flow rate and a time change of a blood vessel cross section area on the basis of a detection result of the detection section, separating a waveform indicating the time change of the blood flow rate or the blood vessel cross sectional area into a waveform of a progressive wave component and a waveform of a reflection wave component by using the time change of the blood flow rate and the time change of the blood vessel cross section area, and evaluating a sclerosis degree of a blood vessel from the waveform of the progressive wave component and the waveform of the reflection wave component.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2017,JPO&INPIT【課題】非侵襲かつ非加圧で血管の硬化度を精度よく求めることのできる生体情報測定装置を提供する。【解決手段】生体情報測定装置1は、測定波として光または音波を生体に照射する照射部と、生体内を通過した測定波を検出する検出部と、検出部の検出結果に基づいて、血流量の時間変化と血管断面積の時間変化とを求め、血流量の時間変化および血管断面積の時間変化を用いて、血流量または血管断面積の時間変化を示す波形を進行波成分の波形と反射波成分の波形とに分離し、進行波成分の波形および反射波成分の波形から血管の硬化度を求める演算部420とを備える。【選択図】図4
