US 12,226,219 B1 · Detecting nonsustained ventricular tachycardia in a wearable cardioverter defibrillator

Abstract

In one embodiment, a method to monitor a patient's heart health is described. The method may include processing at least one electrocardiogram (ECG) signal and diagnosing an episode of nonsustained ventricular tachycardia (NSVT) based at least in part on the processing of the at least one ECG signal. In some embodiments, the NSVT episode may satisfy an NSVT time duration and a QRS criterion. The NSVT time duration may be between 5 seconds and 15 seconds. In some instances, the QRS criterion may be a temporary QRS template of two sequential incoming QRS complexes. In some embodiments, the method may determine a similarity between the temporary QRS template and at least two subsequent QRS complexes by calculating a feature correlation coefficient between the QRS template and the subsequent QRS complexes.

Claims9

Dependent claims

A method of providing targeted therapy to a heart of a patient based on determination of a category of cardiac episodes, the method comprising:

receiving, by a processor, a first electrocardiogram (ECG) signal from one or more external electrodes;
receiving, by the processor, a second ECG signal from the one or more external electrodes;
detecting, by the processor, a first QRS complex in the first ECG signal;
detecting, by the processor, a second QRS complex in the second ECG signal;
calculating, by the processor, a Feature Correlation Coefficient (FCC) based, at least in part, on the first QRS complex and the second QRS complex;
determining, by the processor, that the first ECG signal and the second ECG signal are indicative of an episode of sustained ventricular tachycardia (SVT) based, at least in part, on the calculated FCC;
and
providing therapy to the heart of the patient based, at least in part, on a determination that the episode of SVT is indicated.

5 more elements

Dependencies are inferred from the claim text.

Detecting nonsustained ventricular tachycardia in a wearable cardioverter defibrillator

Life of this patent

Detecting nonsustained ventricular tachycardia in a wearable cardioverter defibrillator

Life of this patent

Abstract

Claims9