| 摘要 |
A blood pressure information measurement device includes an air bladder wrapped around a central side of a measurement portion for pulse wave measurement and an air bladder wrapped at a peripheral side for blood pressure measurement. The air bladder for blood pressure measurement is increased to a pressure higher than a systolic blood pressure, and a blood pressure is measured. An internal pressure of the air bladder is maintained, a pulse wave is measured in avascularized state, and a feature point needed for calculating an index for determining an arteriosclerosis degree is extracted from the pulse wave. When the feature point is not extracted from the pulse wave, the internal pressure of the air bladder for blood pressure measurement is reduced to a pressure lower than the systolic blood pressure, a pulse wave in non-avascularized state is measured, and a feature point is extracted from the pulse wave.
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