Lower limb upper limb blood pressure index measuring device

摘要

PROBLEM TO BE SOLVED: To provide an ankle-brachial blood pressure index measuring apparatus causing less paint to a patient in diagnosing an ankle artery for constriction. SOLUTION: Before the pressure of an ankle cuff 18 is built up, for the measurement of blood pressure, to a pressure higher than the highest blood pressure value, the pressure of the ankle cuff 18 is built up to 60 mmHg and an ankle pulse wave WLL is detected. An ankle pulse wave propagation velocity information calculating means 68 calculates the propagation velocity baPWV of the ankle pulse wave on the basis of the ankle pulse wave WLL and a rise feature value determining means 62 calculates U-time. A sharpness calculating means 64 calculates %MAP, and using the baPWV, U-time, and %MAP a preliminary determination means 76 makes a preliminary determination as to whether or not the ankle artery is constricted. If the determination made by the preliminary determination means 76 shows no sign of constriction, then the need to measure the ankle blood pressure value using the ankle cuff 18 is eliminated, so the patient's pain is reduced.