PROBLEM TO BE SOLVED: To provide a blood pressure measuring apparatus capable of reducing the influence of dispersion in a measuring method including the influence of individual difference such as the shape of a measured part, a wrapping method of an air bag, or the like.SOLUTION: The blood pressure measuring apparatus includes a cuff member 2 provided to be attachable to and detachable from a blood pressure measuring part a blood blocking air bag 8 pressing the blood pressure measuring part a sub-air bag 7 and a cuff body 1 composed of a pulse wave measuring air bag 5. The blood pressure measuring apparatus is constituted to obtain a pulse wave signal by performing pressure reducing control at the same decompression rate after pressurization by blood blocking air bag pressure increasing/decreasing arrangement 22 and 23 and sub-air bag pressure increasing/decreasing arrangement 27 and 26.COPYRIGHT: (C)2009,JPO&INPIT【課題】 測定部位の形状などの個人差の影響や空気袋の巻き方などを含む、測り方のばらつきの影響をより小さくすることができる血圧測定装置の提供。【解決手段】 血圧測定部位に対して脱着自在に設けられるカフ部材2と、血圧測定部位を圧迫する阻血用空気袋8と、サブ空気袋7と、脈波検出用空気袋5から構成されるカフ本体1と、を備え、阻血用空気袋加減圧手段22、23とサブ空気袋加減圧手段27、26による加圧後に、同じ減圧レートで減圧制御して脈波信号を得る構成を備える。【選択図】図1
