APPARATUS FOR MEASURING PULSE WAVE PROPAGATION TIME

摘要

PROBLEM TO BE SOLVED: To inform an inspector of the condition of circulation of a patient of not only a blood pressure of the patient and the activities of the automatic nerve but also the sympathetic nerve noninvasively in a vocal manner. SOLUTION: An electrocardiogram 9 or the like detects an R wave as time interval detection reference point on a pulse wave of an artery of a living body and a probe 12 for a pulse oximeter or the like detects a pulse wave on the side of a peripheral blood vessel which appears with a delay from the pulse wave of the artery. A CPU 1 calculates a pulse wave propagation time to the pulse wave on the side of the peripheral blood vessel to determine an audible frequency according the pulse wave propagation time. An output interface 8 and a synchronous sound generating section 100 generates a signal with the audible frequency for a specified time length from the detection of the R wave at each detection of the R wave.