PROBLEM TO BE SOLVED: To provide a pulse wave analyzer capable of appropriately averaging pulse wave signals and a blood pressure estimator using the pulse wave analyzer.SOLUTION: A controller acquires signals from a pulse wave sensor and an electrocardiogram sensor (S2). Next, the electrocardiogram signals are processed by a low pass filter of 20 Hz (S3), and a peak point of an R wave is detected (S4). On the basis of the peak point of the R wave, a reference point which divides individual pulse wave signals in every beat from pulse wave signal is defined and a plurality of individual pulse wave signals are cut out (S6). These individual pulse wave signals are added and averaged to calculate a reference pulse wave (S7), and the blood pressure value is estimated from the reference pulse wave.COPYRIGHT: (C)2012,JPO&INPIT【課題】脈波信号の平均化を適切に行うことができる脈波解析装置、および当該脈波解析装置を用いた血圧推定装置を提供する。【解決手段】制御装置は、脈波センサおよび心電センサから信号を取得する(S2)。次に、心電信号を20Hzのローパスフィルタで処理し(S3)、R波のピーク点を検出する(S4)。このR波のピーク点に基づいて、脈波信号から一拍ごとの個別脈波信号を区切る基点を定め、複数の個別脈波信号を切り出す(S6)。これら個別脈波信号を加算平均して基準脈波を算出し(S7)、その基準脈波から血圧値を推定する。【選択図】図7
