Systems and methods for filtering ECG artifacts

A system for processing an electrocardiogram (ECG) signal of a patient, the system comprising:

• electrodes to provide the ECG signal of the patient;
• a sensor configured to detect an artifact signal associated to chest compressions influencing the ECG signal;
• and
• one or more processors configured to perform operations comprising:
• receiving the ECG signal, and
• generating a filtered ECG signal by filtering the ECG signal using at least one adaptive notch filter having a center frequency that is a harmonic of a frequency of the artifact signal.

A non-transitory machine-readable storage device for managing care of a patient receiving emergency cardiac assistance, the machine-readable storage device storing instructions that are executable by one or more processors to perform operations comprising:

• receiving an ECG signal of the patient from one or more electrodes,
• receiving an artifact signal associated to at least one physical non-cardiac activity influencing the ECG signal from a sensor attached to the patient;
• and
• generating a filtered ECG signal by filtering the ECG signal using at least one adaptive notch filter having a center frequency that is a harmonic of a frequency of the artifact signal.

A system for processing an electrocardiogram (ECG) signal of a patient, the system comprising:

• electrodes to provide the ECG signal of the patient;
• a sensor configured to detect an artifact signal associated to at least one physical non-cardiac activity influencing the ECG signal;
• and
• one or more processors configured to perform operations comprising:
• receiving the ECG signal, and
• generating a filtered ECG signal by filtering the ECG signal using at least one adaptive notch filter having a center frequency corresponding to a frequency of the artifact signal, wherein the center frequency is a first center frequency and the at least one adaptive notch filter comprises at least one second adaptive notch filter having a second center frequency corresponding to the frequency of the artifact signal, the second center frequency being different from the first center frequency.

A system for processing an electrocardiogram (ECG) signal of a patient, the system comprising:

• electrodes to provide the ECG signal of the patient;
• a sensor configured to detect a frequency of an artifact signal as being between about 30 kHz and about 100 kHz, the artifact signal being associated to at least one physical non-cardiac activity influencing the ECG signal, wherein the at least one physical non-cardiac activity is caused by repeated chest compressions of a cardio-pulmonary resuscitation (CPR) treatment applied to the patient;
• and
• one or more processors configured to perform operations comprising:
• receiving the ECG signal, and
• generating a filtered ECG signal by filtering the ECG signal using at least one adaptive notch filter having a center frequency corresponding to the frequency of the artifact signal.