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

Claim 0:
1. A wearable device for extracting an average electrocardiogram (ECG) waveform, comprising:
means for recording, 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 the single wrist of a patient, the electrical signal including an ECG component and a noise component;
means for detecting 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;
means for generating, 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
means for summing the electrical signal segments in a given time period and dividing 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.