Patent ID: 8180442
Filing Date: 2012-05-15
Classification: A61B

Abstract:
1. A method of presenting physical activity information for an individual by detecting non-cardiac muscle noise in electrocardiogram (ECG) waveform information collected by an implanted medical device, the method comprising the steps of: a) implanting a medical device within a patient, the medical device comprising at least a first subcutaneous electrode implanted in or adjacent to the patient's heart and a second subcutaneous electrode implanted in or adjacent to non-cardiac muscle or fascia tissue of the chest, abdomen, back or neck regions of the patient; b) acquiring a composite electrical waveform from the first and second subcutaneous electrodes, the composite electrical waveform comprising cardiac derived electrical signals generated by cardiac activity of the heart and non-cardiac derived electrical signals including both psychological and physiological data generated by non-cardiac muscle or fascia tissue of the patient during each of a plurality of non-overlapping time periods; c) post-processing at least two of the acquired composite electrical waveforms by performing the following operations: d) displaying to a user a representation of the period activity value for the at least two time periods.