PROBLEM TO BE SOLVED: To provide a blood pressure measuring device allowing a physical load on a patient to be reduced.SOLUTION: A blood pressure measuring device 1 includes: pulse wave signal acquiring means 3 acquiring a pulse wave signal first blood pressure measuring means 17 measuring a blood pressure on the basis of the pulse wave signal second blood pressure measuring means 7, 9, 11, 17 measuring the blood pressure using a cuff 5 calibration value calculating means 17 calculating a calibration value using a measurement value of the second blood pressure measuring means, and at least a measurement value of the first blood pressure measuring means before the measurement of the second blood pressure measuring means and calibrating means 17 calibrating the measurement value of the first blood pressure measurement mean using the calibration value. The calibration value calculating means performs the measurement of the second blood pressure measuring means on condition that the pulse wave signal used in the first blood pressure measuring means satisfies one or more conditions selected from the following conditions A, B. The condition A: an SNR of the pulse wave signal is a prescribed threshold value T1 or greater. The condition B: variation of a feature quantities calculated from the pulse wave signal is a prescribed threshold value T2 or less.COPYRIGHT: (C)2015,JPO&INPIT【課題】患者の身体的負荷を軽減できる血圧測定装置を提供すること。【解決手段】脈波信号を取得する脈波信号取得手段3と、脈波信号に基づき血圧を測定する第1の血圧測定手段17と、カフ5を用いて血圧を測定する第2の血圧測定手段7、9、11、17と、第2の血圧測定手段の測定値と、少なくとも、第2の血圧測定手段の測定前における第1の血圧測定手段の測定値とを用いて校正値を算出する校正値算出手段17と、第1の血圧測定手段の測定値を、校正値を用いて校正する校正手段17とを備えた血圧測定装置1であって、校正値算出手段は、第1の血圧測定手段で用いる脈波信号が、以下の条件A、Bから選択される1以上の条件を充足することを条件として、第2の血圧測定手段の測定を実行することを特徴とする血圧測定装置。条件A:脈波信号のSNRが所定の閾値T1以上である。条件B:脈波信号から算出される特徴量のばらつきが所定の閾値T2以内である。【選択図】図1
