Method, system and external defibrillator for suppressing electrocardiographic interference caused by cardiopulmonary resuscitation
A cardiopulmonary resuscitation and electrical interference technology, applied in cardiac defibrillators, medical science, diagnosis, etc., can solve problems such as algorithm specificity not meeting requirements, misjudgment, etc., to eliminate ECG interference, reduce interruption, and suppress ECG interference effect
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[0051] The present invention will be described in detail below in conjunction with accompanying drawing, as figure 1 Shown:
[0052] A method for suppressing cardiopulmonary resuscitation-induced electrocardiographic interference of the present invention specifically comprises the following steps:
[0053] Step 1, collecting electrocardiographic signals and voltage signals of thoracic impedance signals. A pair of external defibrillation / ECG electrodes is used to apply a low current excitation signal to the patient, and a voltage signal mixed with the ECG signal and the chest impedance excitation signal is simultaneously detected through the electrodes.
[0054] Step 2, preprocessing the above-mentioned collected voltage signal. The band-pass filter is used to preprocess the collected voltage signal, and the function of preprocessing is to filter out the low-frequency drift and high-frequency noise in the voltage signal. The preprocessing utilizes a band-pass filter to filte...
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