| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for measurement of blood pressure to estimate the blood pressure of the subject by only analyzing a measured pulse wave. <P>SOLUTION: In this method for measurement of blood pressure, an acceleration pulse wave is obtained by twice differentiating a volume pulse wave measured on the subject. Blood pressure of the subject is estimated by using phenomena that a time interval t from the maximum point of the a wave (protosystole positive wave) to the maximum point of the e wave (protodiastole positive wave) becomes shorter when blood pressure is high and the time interval t longer when blood pressure is low. When the maximum point of the c wave (midsystole re-elevation wave) or the minimum point of the d wave (late systolic re-descent wave) are unclear and the maximum point and the minimum point of each component cannot be discriminated, the acceleration pulse wave is further differentiated twice to obtain the maximum point and the minimum point in the acceleration pulse wave. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
