Sticker-type ECG/PPG Concurrent Monitoring System Hybrid Integration of CMOS SoC and Organic Sensor Device

Abstract

The sticker-type sensor system is proposed targeting ECG/PPG concurrent monitoring for cardiovascular diseases. The stickers are composed of two types: Hub and Sensor-node (SN) sticker. Low-power CMOS SoC for measuring ECG and PPG signal is hybrid integrated with organic light emitting diodes (OLEDs) and organic photo detector (OPD). The sticker has only 2g weight and only consumes 141 mu W. The optical calibration loop is adopted for maintaining SNR of PPG signal higher than 30dB. The pulse arrival time (PAT) and SpO(2) value can be extracted from various body parts and verified comparing with the reference device from 20 people in-vivo experiments.