The present invention relates to pulse waves related to diastolic blood pressure and systolic blood pressure that can self-adaptively correct variations in pulse wave transit time caused by causes such as blood transfusions / fluids, vasoactive drugs, and surgical intervention in clinical conditions. A method for correcting propagation time is provided. The present invention detects an ear pulse wave and a toe pulse wave in the same cardiac cycle in real time, calculates a pulse wave propagation time, extracts a correction variable based on a morphological characteristic of the pulse wave, and calculates a correction matrix. By acquiring the variation of the above pulse wave propagation time, the corrected propagation time can be used in a conventional mathematical model to continuously measure the diastolic blood pressure and systolic blood pressure in each cardiac cycle under clinical conditions. High accuracy. [Selection figure] None本発明は、臨床条件で輸血・輸液、血管作用薬、外科的介入などの原因により引き起こされる脈波伝播時間の変異を自己適応的に補正することができる拡張期血圧、収縮期血圧に関する脈波伝播時間の補正方法を提供する。本発明は、同一心周期内の耳脈波と足指脈波をリアルタイムに検出し、脈波伝播時間を計算し、かつ脈波の形態学的特徴に基づき補正変数を抽出して補正行列を取得することにより、上記脈波伝播時間の変異を補正し、補正済みの伝播時間を従来の数学モデルに用いて、臨床条件で各心周期の拡張期血圧と収縮期血圧を連続的に測定でき、精度が高い。【選択図】なし
