SPHYGMOMANOMETER

Abstract: a blood pressure measurement unit configured to measure blood pressure of a user based on a pulse wave signal superimposed on a cuff pressure signal detected when increasing or decreasing cuff pressure that indicates internal pressure of a cuff attached to the user; a pulse rate measurement unit configured to measure a pulse rate of the user based on the pulse wave signal; an interval calculation unit configured to calculate a data group of pulse wave intervals based on the pulse wave signal; a clustering unit configured to cluster the data group of the pulse wave intervals into one or more clusters by using a threshold; and a determination unit configured to determine, based on an index value indicating a magnitude of variation of the data group belonging to the cluster, whether atrial fibrillation occurs in the user. the clustering unit sets the threshold based on the pulse rate.

Inventor(s): Tatsunori ITO, Hiroyuki KANDA, Yuta KUDO

CPC Classification: A61B5/0205 (Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition)

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