Comparison of Characteristics of Radial Artery Waveforms Measured Using Hall Device Pulsimeter and Photoplethysmography Sensor

The characteristics of pulse waveforms measured using pulsimeter equipped with a magnetic hall device and an optical sensor, which are used as the digital healthcare devices, were investigated. The average and standard deviation values of the output values of the amplitude and time values of feature points were compared from the data obtained by analyzing the pulse waveforms obtained with the clip-type pulsimeter and PPG at the location of maximum pulse in the radial artery. In the case of the clip-type pulsimeter, the average values of systolic time (S.time) and period (P.time) were 103.6 ms and 638.8 ms, respectively. On the other hand, in the case of PPG, the average values of S.time and P.time were 165.0 ms and 677.6 ms, respectively. The pulse rate of the pulse wave by the pulsimeter was about 5 faster than one of the pulse wave by the flow of blood passing through the radial artery. As a data-based smart peripheral blood flow rate monitor, a magnetic Hall element pulsimeter on the wrist capable of measuring stable pulse waveforms is effective to wear a PPG sensor on the middle finger.