PROBLEM TO BE SOLVED: To provide a blood pressure measuring apparatus capable of reducing the influence of an individual difference on systolic blood pressure measurement accuracy and the influence of a measuring method including the way of winding a cuff or the like.SOLUTION: The blood pressure measuring apparatus includes a cuff main body comprising an air bag for ischemia, a sub air bag for pressurizing the heart side of the blood vessel of a blood pressure measuring part and a pulse wave detection air bag for detecting pulse waves, a means for pressurizing/depressurizing the cuff main body, a cuff pressure detection means, a pulse wave detection means, and a means for displaying a blood pressure value. The blood pressure measuring apparatus has first piping connected between the pulse wave detection air bag and the pressurizing/depressurizing means, second piping connected between the air bag for ischemia and the pressurizing/depressurizing means and connected with the cuff pressure detection means through a fluid resistor, and third piping connected between the sub air bag and the pressurizing/depressurizing means through an on-off valve. When detecting the pulse waves required for blood pressure measurement in the pulse wave detection means, the on-off valve is turned to a closed state, and a series of pulse wave waveform changes that occur are obtained as pulse wave signals by the pulse wave detection means.COPYRIGHT: (C)2009,JPO&INPIT【課題】 収縮期血圧測定精度への個体差の影響、カフの巻き方などを含む測り方の影響を低減できる血圧測定装置の提供。【解決手段】 阻血用空気袋、血圧測定部位の血管の心臓側を圧迫するサブ空気袋、脈波を検出する脈波検出用空気袋から構成されるカフ本体と、カフ本体を加圧・減圧するための手段と、カフ圧力検出手段と、脈波検出手段と、血圧値を表示する手段とを備えた血圧測定装置で、脈波検出用空気袋と加減圧手段の間に接続される第1配管と、阻血用空気袋と加減圧手段との間に接続され、カフ圧検出手段と流体抵抗器を介して接続される第2配管と、サブ空気袋と加減圧手段との間に開閉弁を介して接続される第3配管とを備え、血圧測定に必要な脈波を脈波検出手段で検出する時には、開閉弁を閉状態にし、発生する一連の脈波波形変化を脈波検出手段により脈波信号として得るようにした。【選択図】 図6
