Development of pulse rate detection system for oriental medicine

The authors devised a pulse rate detection system to provide basic clinical index of cold-hot diagnosis of oriental medicine. The system consists of pulse signal detection, respiration signal detection, electrocardiograph detection, A/D conversion and computer system parts. The pulse rate, inspiration pulse rate and expiration pulse rate are defined as a pulse count in a respiration period, inspiration period and expiration period respectively. The clinical experiments on a normal person to evaluate the pulse rate detection system show a pulse/respiration ratio of 4.30/spl plusmn/1.03, a pulse/inspiration ratio of 1.60/spl plusmn/0.32, and a pulse/expiration ratio of 2.37/spl plusmn/0.75.