Patent Document ID: 6022320
Application ID: 08867886
Patent Status: 1

Claim One:
1. A blood pressure monitor apparatus comprising: a blood pressure measuring device which includes a cuff and measures an actual blood pressure value of a living subject by changing a pressing pressure of the cuff applied to a body portion of the subject; estimated blood pressure determining means for successively determining an estimated blood pressure value of the subject, based on each of successive sets of actual pulse-wave propagation information of the subject, according to a relationship between blood pressure and pulse-wave propagation information; preparing means for preparing a plurality of candidates for said relationship between blood pressure and pulse-wave propagation information; calculating means for successively calculating a plurality of estimated blood pressure values, based on each of successive sets of actual pulse-wave propagation information of the subject, according to said plurality of candidates prepared by said preparing means, respectively, and thereby providing a plurality of groups of successively calculated estimated blood pressure values which correspond to said plurality of candidates, respectively; starting means for controlling said blood pressure measuring device to measure an actual blood pressure value of the subject, when at least one of respective changes of said plurality of groups of estimated blood pressure values provided by said calculating means exceeds a first reference value; and selecting means for selecting, as said relationship between blood pressure and pulse-wave propagation information, one of said plurality of candidates which corresponds to one of said plurality of groups of estimated blood pressure values which includes the estimated blood pressure value that is most approximate to said actual blood pressure value measured by said blood pressure measuring device under control of said starting means.