Blood pressure monitoring apparatus

A blood pressure monitoring apparatus comprising:

• blood pressure measuring means for measuring the blood pressure employing a cuff;
• pulse wave propagation parameter measuring means for measuring the pulse wave propagation parameter;
• hemodynamics measuring means f or measuring the hemodynamics;
• and
• control means for controlling said blood pressure measuring means on the basis of a change in pulse wave propagation parameter measured by said pulse wave propagation parameter measuring means and a change in hemodynamics measured by said hemodynamics measuring means,
• wherein said control means compares between a pulse wave propagation parameter change threshold memorized to monitor the amount of change in pulse wave propagation parameter and the amount of change in pulse wave propagation parameter measured by said pulse wave propagation parameter measuring means and detect the change trend in said measured pulse wave propagation parameter, compares between a hemodynamics change threshold memorized to monitor the amount of change in the hemodynamics and the amount of change in hemodynamics measured by said hemodynamics measuring means, detects the change trend in said hemodynamics measured, and updates said pulse wave propagation parameter change threshold on the basis of the results of two comparisons with said thresholds and the detected change trends.