| 摘要 |
<p>The average and lowest blood pressures are measured by the oscillometric or another method. The arterial tension waveform representing the blood pressure itself is similar to the pulse waveform produced when the measurement portion is pressed by a cuff. The blood pressure is determined on the basis of the similarity. Specifically, the pulse of when the measurement portion is pressed by a cuff (ST1) is sensed (ST2), an estimate average blood pressure is determined from the maximum amplitude of the sensed pulse (ST3, ST4), the determined estimate average blood pressure and the minimum value of the pulse waveform are assumed as the average blood pressure and the lowest blood pressure respectively (ST6, ST7), and the highest blood pressure is determined by calculation from the maximum value of the pulse waveform (ST9).</p> |
