BLOOD PRESSURE MEASURING DEVICE AND BLOOD PRESSURE MEASURING METHOD

摘要

To provide a technique which makes it possible to obtain a proper pulse wave signal for high-accuracy blood pressure measurements, thereby saving the trouble of taking measurements repeatedly and reducing a physical burden imposed on the user by cuff pressure. A blood pressure measuring apparatus includes a cuff which is attached to and around an external ear; a first pulse wave detector and a second pulse wave detector which detect a pulse wave in a part squeezed by the cuff and which are affected differently from each other by a characteristic of body movements; a body movement detecting means which detects the characteristic of body movements; a pulse wave selecting means which selects a pulse wave detected by one of the first pulse wave detector and the second pulse wave detector based on the characteristic of body movements detected by the body movement detecting means; and a blood pressure value deriving means which derives a blood pressure value based on the pulse wave selected by the pulse wave selecting means.