PROBLEM TO BE SOLVED: To enable the estimation of the power consumption more than assumption for an electronic sphygmomanometer that measures blood pressure by using the detected pulse wave from a measurement site.SOLUTION: The electronic sphygmomanometer is provided with: an adjustment unit for adjusting the cuff pressure by controlling a piezoelectric pump which uses a piezoelectric transducer for supplying a fluid to a cuff wound around the perimeter of a measurement site a drive control unit 33 which gradually changes the cuff pressure by means of controlling driving of the adjustment unit a pressure detection unit 32 for detecting the cuff pressure a blood pressure determination unit 34 for determining the blood pressure value on the basis of the detected cuff pressure a perimeter length detection unit 351 for detecting the perimeter length of the measurement site a battery for supplying power to each unit and a drop amount detection unit 352 for detecting the voltage drop value of the battery during blood pressure measurement. On the basis of the perimeter length and the voltage drop value detected during the initial pressurization period at blood pressure measurement start, the range of the voltage drop values thereafter during blood pressure measurement is estimated.COPYRIGHT: (C)2013,JPO&INPIT【課題】想定以上の電力消費の推定を可能にする。【解決手段】電子血圧計は、測定部位の周囲に巻付けられるカフに流体を供給するための圧電振動子を利用した圧電ポンプを制御することによりカフ圧を調整するための調整部と、調整部を駆動制御することにより、カフ圧を徐々に変化させるための駆動制御部33と、カフ圧を検出するための圧力検出部32と、検出されるカフ圧に基づいて血圧値を決定するための血圧決定部34と、測定部位の周囲長を検出するための周囲長検出部351と、各部に電力を供給するための電池と、血圧測定中の電池の電圧降下値を検出するための降下量検出部352と、を備え、周囲長と、血圧測定開始時の初期加圧期間に検出される電圧降下値とに基づき、その後の血圧測定中における電圧降下値の範囲を推定する。【選択図】図2
