Patent ID: 8082028
Filing Date: 2011-12-20
Classification: A61B,G16H

Abstract:
1. A method for classifying of supraventricular tachyarrhythmia or SVT from ventricular tachyarrhythmia or VT using signals provided by an electrogram comprising: providing a template signal x(i) and a test signal y(i), wherein the template signal and the test signal comprise samples from an electrogram; defining subspaces associated with said template signal wherein R denotes a signal space that spans from V transforming at least the test signal into a representation of the test signal ty(i) based on a trichotomization function: wherein ty(i) are integer values; determining a correlation between the template signal and the test signal by summing the representation of the test signal ty(i): wherein L represents a number of said samples; and, classifying of SVT from VT based on the correlation, performed using an implantable cardiac device.