PROBLEM TO BE SOLVED: To provide an electronic sphygmomanometer capable of obtaining the accurate pulse wave of a blood vessel even if the blood vessel of the upper arm is pressurized by supplying air into an air bag by driving two pumps.SOLUTION: The electronic sphygmomanometer 1 has the air bag 14 for permitting the insertion of the upper arm of a measuring person to pressurize the blood vessel of the upper arm, first and second pumps 44 and 45 for supplying air into the air bag 14, a first drive part 62A for driving the first pump 44, a second drive part 62B for driving the second pump 45 and a control part 56 for applying commands to the first drive part 62A to control the driving of the first pump 44, applying commands to the second drive part 62B to control the driving of the second pump 45, rotationally driving the first pump 44 by the whole output when the pulse wave of the blood vessel is detected and driving the second pump 45 by output lower than the whole output.COPYRIGHT: (C)2011,JPO&INPIT【課題】2つのポンプを駆動して空気袋内に空気を供給して上腕の血管を加圧しても、正確な血管の脈波を得ることができる電子血圧計を提供する。【解決手段】電子血圧計1は、測定者の上腕を挿入して血管を加圧するための空気袋14と、空気袋14内に空気を供給する第1ポンプ44と第2ポンプ45と、第1ポンプ44を駆動する第1駆動部62Aと、第2ポンプ45を駆動する第2駆動部62Bと、第1駆動部62Aに指令を与えて第1ポンプ44の駆動を制御し、第2駆動部62Bに指令を与えて第2ポンプ45の駆動を制御し、血管の脈波を検出する際には第1ポンプ44を全出力で回転駆動させ、第2ポンプ45を全出力よりも低い出力で駆動させる制御部56とを有する。【選択図】図11
