PROBLEM TO BE SOLVED: To provide a pulse wave propagation velocity measuring device capable of accurately obtaining the propagation velocity of an ejection wave of pulse waves in consideration of the difference between the velocity of the ejection wave of pulse waves and the velocity of reflected waves.SOLUTION: In this pulse wave propagation velocity measuring device 100, a reference time detecting section 121 detects the reference time T1 of an ejection wave component S1 and the reference time T2 of a reflected wave component S2, and a pulse wave amplitude detecting section 122 detects the amplitude W1 of the ejection wave component S1 corresponding to the reference time T1 and the amplitude W3 of the reflected wave component S2 corresponding to the reference time T2. A pulse wave propagation velocity detecting section 130 obtains the propagation velocity PWVf of the ejection wave based on the reference times T1, T2 and the ratio of the amplitude W1 of the ejection wave component S1 corresponding to the reference time T1, to the amplitude W3 of the reflected wave component S2 corresponding to the reference time T2.COPYRIGHT: (C)2012,JPO&INPIT【課題】脈波の駆出波の速度と反射波の速度とが異なることを考慮に入れて、脈波の駆出波の伝播速度を精度良く求めることが可能な脈波伝播速度測定装置を提供することにある。【解決手段】この脈波伝播速度測定装置100は、基準時間検出部121で駆出波成分S1の基準時間T1と反射波成分S2の基準時間T2を検出し、脈波振幅検出部122は、時間基準T1に対応する駆出波成分S1の振幅W1と時間基準T2に対応する反射波成分S2の振幅W3とを検出する。脈波伝播速度検出部130は、基準時間T1,T2、および基準時間T1に対応する駆出波成分S1の振幅W1と時間基準T2に対応する反射波成分S2の振幅W3との比率に基づいて、駆出波の伝播速度PWVfを求める。【選択図】図1
