Patent ID: 7383079
Filing Date: 2008-06-03
Classification: A61B,A61N

Abstract:
1. A method to at least one of detecting, removing and estimating a pacemaker pacer signal from an electrocardiogram (“ECG”) signal of a human or animal to diagnose a physiological condition, said method comprising the steps of: digitizing a plurality of ECG potentials (M channels of ECG lead data) with an analog to digital converter (“ADC”) to create a discrete signal representation of each potential in time; filtering the plurality of ECG potentials using a digital filter to create a plurality of filtered ECG potentials; operating on the plurality of filtered ECG potentials using a non-linear mathematical morphology function to detect and remove the pacer maker signal from the ECG signal to create a plurality of processed ECG potentials wherein the step of operating on the plurality of filtered ECG potentials using a non-linear mathematical morphology function further comprises the step of estimating the pacer signal height using sampling rates that may be below the Nyquist rate; and diagnosing a physiological condition of the human or animal based on the processed ECG potentials.