Patent ID: 11931155
Assignee: CHRONISENSE MEDICAL LTD.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 12:
13. A system for measuring an electrocardiogram (ECG) using a wearable device, the system comprising:
the wearable device including at least one electrical sensor, the wearable device configured to:
record, via at least a first input plate placed in contact on a single wrist and a second input plate, placed in contact with an opposite side of the single wrist, of at least one electrical sensor associated with the wearable device, an electrical signal from a single wrist of a patient, the electrical signal including an ECG component and a noise component;
detect a pulse of the patient and recording a photoplethysmogram (PPG) signal, via a PPG optical sensor associated with the wearable device, the electrical signal and the PPG signal being simultaneously measured at the single wrist of the patient;
generate, by a processor from the recorded electrical signal, electrical signal segments of the recorded electrical signal, the electrical signal segments being time-locked to the PPG signal by utilizing the PPG signal as a reference signal; and
sum the electrical signal segments in a given time period and divide by a number of segments to produce an average ECG waveform based on a subset of the electrical signal segments, resulting in a reduction of an uncorrelated noise component of the electrical signal and an extraction of the average ECG waveform from the electrical signal during the time period.