PROBLEM TO BE SOLVED: To provide a blood pressure measuring apparatus which achieves correction of hydraulic head pressure with a few addition circuits and carries out accurate blood pressure measurement without imposing inconvenience upon a person being measured and a blood pressure measuring method.SOLUTION: The blood pressure measuring apparatus includes: a measurement switching section that switches measurement between measurement of changes of inner pressure of a blood pressure transmission section 12 by a sensor 24 for measuring barometric pressure and measurement of barometric pressure by the sensor 24 at the position of the blood pressure transmission section 12 and at the position of the heart of the person being measured who is wearing the blood pressure transmission section 12 a blood pressure measurement section that acquires a sensor signal of the sensor 24 from the changes of the inner pressure of the blood pressure transmission section 12 measured by the sensor 24 and calculates a blood pressure value and a blood pressure value correction section that acquires a sensor signal of the sensor 24 measuring the barometric pressures at the position of the blood pressure transmission section 12 and at the position of the heart of the person being measured who is wearing the blood pressure transmission section 12, and applies, on the basis of the changes of the inner pressure of the blood pressure transmission section 12, a correction value corresponding to the difference of the barometric pressures to the calculated blood pressure value.COPYRIGHT: (C)2011,JPO&INPIT【課題】少ない付加回路で水頭圧補正が実現でき、被測定者の不便を必要とすることなく正確な血圧測定が可能とする血圧測定装置及び血圧測定方法を提供する。【解決手段】血圧測定装置は、気圧を測定するセンサー24で血圧伝達部12の内圧変化の測定と、センサー24で血圧伝達部12の位置と、血圧伝達部12を装着する被測定者の心臓の位置との大気圧の測定と、を切替える測定切替え部と、センサー24で血圧伝達部12の内圧変化の測定からセンサー24のセンサー信号を取得し、血圧値を算出する血圧測定部と、センサー24で血圧伝達部12の位置と、血圧伝達部12を装着する被測定者の心臓の位置との大気圧を測定するセンサー信号を取得し、大気圧の差に応じた補正値を血圧伝達部12の内圧変化に基づいて、算出された血圧値に演算する血圧値補正部と、を含む。【選択図】図3
