US 2020/0368536 A1 · METHODS AND SYSTEMS FOR LABELING ARRHYTHMIAS BASED ON HEART SOUNDS

Abstract

A computer implemented method and system for labeling types of heart arrhythmias based on cardiac activity are provided. The method is under control of one or more processors of an implantable medical device (IMD) configured with specific executable instruction. The method obtains cardiac activity (CA) signals at electrodes of the IMD during cardiac beats, declares a ventricular tachycardia (VT) episode based on the CA signals and obtains acceleration signatures, at an accelerometer of the IMD, indicative of heart sounds generated during the cardiac beats. The method analyzes an S1 characteristic of interest (COI) from the acceleration signature to identify the VT episode as a stable or non-stable VT episode and labels the VT episode as stable or non-stable based on the analyzing operation.

Claims20

Dependent claims

A computer implemented method for labeling types of heart arrhythmias based on cardiac activity, comprising:

under control of one or more processors of an implantable medical device (IMD) configured with specific executable instructions;
obtaining cardiac activity (CA) signals at electrodes of the IMD during cardiac beats;
declaring a ventricular tachycardia (VT) episode based on the CA signals;
obtaining acceleration signatures, at an accelerometer of the IMD, indicative of heart sounds generated during the cardiac beats;
analyzing an S1 characteristic of interest (COI) from the acceleration signature to identify the VT episode as a stable or non-stable VT episode;
and
labeling the VT episode as stable or non-stable based on the analyzing operation.

4 more elements

A system for labeling types of heart arrhythmias based on cardiac activity, the system comprising:

one or more processors;
and a memory coupled to the one or more processors, wherein the memory stores program instructions, wherein the program instructions are executable by the one or more processors to:
obtain cardiac activity (CA) signals at electrodes of the IMD during cardiac beats;
declare a ventricular tachycardia (VT) episode based on the CA signals;
obtain acceleration signatures, at an accelerometer of the IMD, indicative of heart sounds generated during the cardiac beats;
analyze an S1 characteristic of interest (COI) from the acceleration signature to identify the VT episode as a stable or non-stable VT episode;
and
label the VT episode as stable or non-stable based on the analyzing operation.

5 more elements

Dependencies are inferred from the claim text.

Methods and systems for labeling arrhythmias based on heart sounds

Life of this patent

Methods and systems for labeling arrhythmias based on heart sounds

Life of this patent

Abstract

Claims20