PROBLEM TO BE SOLVED: To provide an electronic sphygmomanometer detecting the index indicating the degree of arterial sclerosis by person.SOLUTION: The electronic sphygmomanometer for measuring the blood pressure based on the volume compensation method detects the cuff pressure within a cuff attached to a blood pressure measuring region. An arterial volume detection circuit 74 detects an arterial volume signal of the measuring region. A driving control part 101 servo-controls a cuff pressure adjusting part to regulate the arterial volume based on the detected arterial volume signal after setting the cuff pressure at initial cuff pressure. The quantity of variation of the arterial volume is detected based on the detected arterial volume signal while the servo-control is performed. If it is detected that the quantity of variation of the arterial volume is the minimum in the servo-control, a volume variation elimination rate calculating part 110 calculates the elimination rate of the volume variation (amplitude of the artery volume signal during the control/amplitude of the artery volume signal before the control), and outputs the elimination rate as the index of the arterial sclerosis.COPYRIGHT: (C)2010,JPO&INPIT【課題】個人毎の動脈硬化度の指標を検出する。【解決手段】容積補償法に従い血圧を測定するための電子血圧計は、血圧の測定部位に装着されるカフ内のカフ圧を検出する。動脈容積検出回路74は測定部位の動脈容積信号を検出する。駆動制御部101は、カフ圧を初期カフ圧に設定した後に、検出される動脈容積信号に基づいて、動脈の容積が一定となるようにカフ圧調整部をサーボ制御する。サーボ制御が行なわれている際に、検出される動脈容積信号に基づき動脈容積変化量を検出する。サーボ制御において、動脈容積の変化量が最小であると検出されたときに、容積変化消去率算部110は容積変化消去率(制御中の動脈容積信号の振幅/制御前の動脈容積信号の振幅)を算出し、動脈硬化の指標として出力する。【選択図】図6
