Patent ID: 9037223
Filing Date: 2015-05-19
Classification: A61B,A61N,G16H

Abstract:
1. An apparatus for detecting arrhythmias within a body, the apparatus comprising: an input stage to receive an electrocardiogram signal from a body connected thereto through a detection electrode input, wherein the input stage is a real-time dynamically adjustable signal transformation stage configured to condition the electrocardiogram signal; an analysis stage coupled to the input stage to receive the conditioned electrocardiogram signal from the input stage, wherein the analysis stage comprises, a transformation stage wherein a frequency, time, or phase domain representation of the conditioned electrocardiogram signal is formed from the conditioned electrocardiogram signal being in a time-domain signal, and an evaluation stage, wherein frequency, time or phase domain features related to the arrhythmias are extracted from the frequency, time, or phase domain representation, wherein the evaluation stage is configured to determine a summed energy over a predetermined range of frequencies, time intervals or phases for the frequency, time, or phase domain representation and configured to normalize the summed energy to the energy at the frequency within the predetermined range of frequencies having the maximum energy to form a spectral frequency dispersion metric (SFDM), spectral time domain dispersion metric (STDM), and/or spectral phase domain dispersion metric (SPDM) over the predetermined range of frequencies, time intervals, or phases; and a classification stage coupled to the evaluation stage to receive the SFDM, STDM, and/or SPDM and to determine whether the body is experiencing the arrhythmias.