US 11,666,229 B2
Monitoring device for monitoring of vital signs
Srinivasan Murali, Lausanne (CH); Francisco Javier Rincon Vallejos, Renens (CH); Sébastien Baumann, Pully (CH); and Ester Pérez Marcos, Renens (CH)
Assigned to SmartCardia SA, Lausanne (CH)
Appl. No. 16/766,617
Filed by SmartCardia SA, Lausanne (CH)
PCT Filed Nov. 24, 2017, PCT No. PCT/IB2017/001446
§ 371(c)(1), (2) Date May 22, 2020,
PCT Pub. No. WO2019/102242, PCT Pub. Date May 31, 2019.
Prior Publication US 2021/0000351 A1, Jan. 7, 2021
Int. Cl. A61B 5/389 (2021.01); A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/30 (2021.01); A61B 5/25 (2021.01); A61B 5/024 (2006.01)
CPC A61B 5/02055 (2013.01) [A61B 5/25 (2021.01); A61B 5/30 (2021.01); A61B 5/389 (2021.01); A61B 5/6823 (2013.01); A61B 5/6824 (2013.01); A61B 5/6833 (2013.01); A61B 5/7203 (2013.01); A61B 5/726 (2013.01); A61B 5/7221 (2013.01); A61B 5/02433 (2013.01); A61B 2560/04 (2013.01); A61B 2562/0204 (2013.01); A61B 2562/0217 (2017.08); A61B 2562/0219 (2013.01); A61B 2562/0271 (2013.01); A61B 2562/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for monitoring of vital signs of a living organism using a monitoring device, wherein the method comprises:
receiving a first electrical activity of the living organism using at least two electrode pins;
sensing a pulse of the living organism using an optical sensor;
determining whether the first electrical activity is a clean ECG signal or a combination of an ECG signal and an EMG signal;
measuring a time-dependent accelerometer waveform and a time-dependent waveform of the first electrical activity concurrently;
computing a mean of the accelerometer waveform on a pre-defined time window;
removing the mean from the accelerometer waveform over the time window so as to create a residual accelerometer signal;
checking if a sum or a root mean square (RMS) of the residual accelerometer signal exceeds a pre-defined signal threshold; and
labeling the first electrical activity as the clean ECG signal when the sum or the RMS of the residual accelerometer signal does not exceed the pre-defined signal threshold and labeling the first electrical activity as the combination of the ECG signal and the EMG signal when the sum or the RMS of the residual accelerometer signal exceeds the pre-defined signal threshold.