PROBLEM TO BE SOLVED: To accurately measure a blood pressure regardless of the change in a voltage.SOLUTION: This electronic sphygmomanometer 100 is provided with: a cuff which is wound around the measurement site of a subject a pressurization control unit 115 which controls, according to the drive voltage, a pump for outputting a fluid in the cuff such that the pressure in the cuff is increased at a pressurization rate target a pressure detection unit 112 for detecting a cuff pressure signal representing the cuff pressure a blood pressure calculating unit for calculating the blood pressure value on the basis of the pulse wave superimposed on the detected cuff pressure signal and a target change unit 114 which variably changes the pressurization rate target in the pressurization process in which the cuff pressure is initially increased at an initial pressurization rate target and in which pressurization is then continued. The target change unit 114 variably changes the pressurization rate target such that the drive voltage measured in the pressurization process is within a voltage range corresponding to a range in which the pump is capable of output.COPYRIGHT: (C)2013,JPO&INPIT【課題】電圧の変化にかかわらず正確に血圧を測定できる。【解決手段】電子血圧計100は、被測定者の測定部位の周囲に巻付けられるカフと、カフ内に流体を出力するためのポンプを、駆動電圧に従って、カフ内の圧力が加圧速度目標で加圧されるように制御する加圧制御部115と、カフ圧を表わすカフ圧信号を検出するための圧力検出部112と、検出されるカフ圧信号に重畳する脈波に基づいて血圧値を算出するための血圧算出部と、カフ圧を初期の加圧速度目標で加圧開始し加圧を継続する加圧過程において、加圧速度目標を可変に変更する目標変更部114と、を備え、目標変更部114は、加圧過程において測定される駆動電圧が、ポンプが出力可能な範囲に相当する電圧の範囲となるように、加圧速度目標を可変に変更する。【選択図】図2
