Patent ID: 8768459
Filing Date: 2014-07-01
Classification: A61N

Abstract:
1. A method of treating heart rhythms, comprising: sensing electrical signals associated with depolarizations of a patient's heart; converting the sensed electrical signals to digital values and storing the digital values; normalizing solely a maximum and a minimum value of the stored digital values associated with a depolarization of the patient's heart without normalizing other stored digital values of the depolarization; comparing the maximum and minimum values associated with the depolarization to maximum and minimum values associated with a template derived from signals indicative of a heart depolarization of known type or from a different depolarization cycle; determining if a match exists between the maximum and minimum values associated with the depolarization to the maximum and minimum values associated with a template; performing a wavelet comparison when the match between the depolarization and template exists; and using a result of the wavelet comparison and selecting a therapy and delivering the therapy it to the patient based on the result.