Ultra Low-Power System for Remote ECG Monitoring

A complete system solution for ECG monitoring is presented by this paper. This system includes extracting signals from the patient chest, motion artifact removal in both analog and digital domain, sending data to mobile phone and cloud, and data analysis. Using deep sleep modes and low power co-processor, the overall power consumption for presented wireless ECG patch is less than $300\mu\mathrm{A}$ so that the device can operate for more than 20 days using a 150mAh battery. The mobile phone software eliminates any remaining motion artifact. The screening software looks for suspicious traces such as those with missing pulses, tachycardia, bradycardia, etc. The traces are subsequently processed in detail in a cloud server and the results are sent to a physician's dashboard for long-term monitoring.