| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate a catheter, and facilitate the noninvasive fitting to a patient by calculating a blood pressure of the body by a measured value by a hemodynamometer for calibration and a measured value by an noninvasive sensor, and outputting and displaying a continuous blood pressure signal to an external monitor. SOLUTION: When received a vibration from an exciter 2 through an arterial blood vessel of a subject, a closed sensor 4 converts the vibration into an electric signal, and outputs the electric signal to a blood pressure calculating means 6. Also, a hemodynamometer 5 for calibration measures the absolute value for a maximum blood pressure and the absolute value for a minimum blood pressure of the subject, and outputs the measured values to a blood pressure calculating means 6. Then, the blood pressure calculating means 6 A/D(analog/ digital)-converts the electric signal from the noninvasive sensor 4 with a signal generated by a vibration oscillator 3 as a reference, calculates a continuous blood pressure signal 7 from the absolute value for the maximum blood pressure and the absolute value for the minimum blood pressure from the hemodynamometer 5 for calibration, and displays the continuous blood pressure signal 7 on various kinds of external monitors 12.</p> |
