Impulsive control as a novel defibrillator algorithm using coupled Van der Pol oscillators
Das, S; Maharatna, K
Date: 25 July 2023
Conference paper
Publisher
Springer
Publisher DOI
Abstract
This paper proposes a strategy for improving a patient-centric
implantable cardioverter defibrillator (ICD) for real time implementation, to
deal with heart related ailments like ventricular flutter and sinus bradycardia. A
patient-centric dynamic model of heart rhythm is generated similar to the real
Electrocardiogram (ECG) signals ...
This paper proposes a strategy for improving a patient-centric
implantable cardioverter defibrillator (ICD) for real time implementation, to
deal with heart related ailments like ventricular flutter and sinus bradycardia. A
patient-centric dynamic model of heart rhythm is generated similar to the real
Electrocardiogram (ECG) signals using three coupled Van der Pol (VdP)
oscillators. These oscillators represent the dynamics of three nodes viz. the
Sino-Atrial (SA) node, Atrio-Ventricular (AV) node and the His-Purkinje (HP)
complex. The coupled VdP oscillator model based closed loop impulsive
control methodology is then developed which starts functioning when there is
aberrant behavior due to the diseased condition in the electrical activities
generated by the different nodes of the heart. An embedded control system can
be augmented to the ICD devices with the proposed control methodology
having a patient-centric and disease-specific characteristic of the control law.
The impulsive control strategy is specifically useful for such purposes over the
continuous control techniques, as it helps in conserving the battery power of
such devices and enables a longer lifetime of the ICD device. Numerical
simulations are shown to illustrate the practicality of the proposed approach.
Earth and Environmental Science
Faculty of Environment, Science and Economy
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