Wearable apparatus for ECG signal acquisition

An apparatus for measuring an electrocardiograph (ECG) signal for a user wearing a wearable device, comprising:

• an ECG sensor;
• a first ECG sensor electrode;
• a second ECG sensor electrode;
• sensors including an accelerometer;
• a microcontroller unit (MCU);
• a processor;
• and
• a memory configured to store instructions which when executed by the processor become operational with the processor to:
• receive, by the MCU from the accelerometer, a status for the user;
• receive, from a sensor of the sensors, motion information of the wearable device;
• determine, using the motion information, whether to measure the ECG signal using a first mode or a second mode;
• when the ECG signal is measured in the first mode, receive the ECG signal by the ECG sensor from a closed circuit formed by the first ECG sensor electrode and the second ECG sensor electrode, wherein the wearable device comprises a main body detachable to the wearable device, a connecting portion, and electrode patches, and the main body comprises the ECG sensor, the first ECG sensor electrode, and the second ECG sensor electrode;
• and
• when the ECG signal is measured in the second mode, receive the ECG signal by the ECG sensor from a closed circuit formed by electrodes of the electrode patches, wherein the ECG sensor is in the main body and the main body is connected to the electrode patches.

A wearable device for measuring an electrocardiograph (ECG) signal for a user, comprising:

• a main body detachable from the wearable device, comprising a first ECG sensor electrode provided on an inner surface of the main body, a second ECG sensor electrode provided on an outer surface of the main body, and an ECG sensor;
• a securing portion comprising a wrist band;
• and
• at least two electrode patches, detached from the main body and the securing portion, wherein the ECG sensor is configured to:
• receive, from a sensor of the wearable device, motion information of the wearable device;
• determine, using the motion information, whether to measure the ECG signal using a first mode or a second mode;
• when the ECG signal is measured in the first mode, receive the ECG signal from a closed circuit formed by the first ECG sensor electrode and the second ECG sensor electrode;
• and
• when the ECG signal is measured in the second mode, receive the ECG signal from a closed circuit formed by electrodes of the at least two electrode patches.