| 摘要 |
PURPOSE: A blood pressure measuring apparatus is provided to enhance accuracy in a blood pressure measuring process by using an inflatable cuff including a first and a second inflatable bag. CONSTITUTION: An inflatable cuff(12) includes a first inflatable bag(16) adapted to be worn on a body portion of a living subject so as to exclude blood from an artery located in the body portion and a second inflatable bag(14) adapted to be worn on the body portion, on a distal side of a middle portion of the first inflatable cuff, so as to detect a pulse wave produced from the artery. A first piping(24) is connected to the first inflatable bag. A second piping(36) is branched from the first piping and is connected to the second inflatable bag. A pump(34) supplies an inflating fluid to the first and second inflatable bags via the first and second pipings, respectively. A blood pressure determining device(28,38,44,50,54,56) determines a blood pressure of the subject based on the pulse wave detected through the second inflatable bag when a pressing pressure of the first inflatable bag is changed. A switching device(26) is provided in the second piping and which selectively switches the second piping to a connected state in which the second piping is connected to the first piping and to a disconnected state in which the second piping is disconnected from the first piping.
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