| 摘要 |
<p>The system has a pulse wave sensor which enables continuous monitoring of the blood pressure of a living body by detecting pulse waves from the artery. The system is also provided with a conventional blood pressure measuring means comprising a cutt, a pressure sensor valves a pump and detection circuits which enables measuring of the actual blood pressure. There is a linear relation between the maximum value (M) of the pulse wave and the systolic blood pressure (SYS), i.e., SYS = K max M; and also between the minimum value (m) of the pulse wave and the diastolic blood pressure (DIA), i.e., DIA = K min. m. At the start of measurement, the scale factors (K max, K min) are determined based on the measured values. Thereafter, only the pulse wave sensor is used for continuous monitoring and the calculated blood pressure valves using the above relations are displayed on a CRT. Calibrations of the scale factors are performed periodically by using the blood pressure measuring means.</p> |
