Key result
In vitro modeling demonstrated that the induced voltage across a pacemaker is linearly dependent on the applied disturbance voltage, with |Veb| ranging from 0.29 to 0.32 |Vg| across tested frequencies.
In vitro and numerical modeling demonstrates that conducted electrical disturbances induce a voltage across pacemaker components that is linearly proportional to the source voltage and largely independent of frequency.
In vitro pacemaker EMI modeling at 50/60 Hz and 10/25 kHz frequencies leaves open real-world susceptibility; prospective clinical studies needed before practice implications.
The work presented describes the modeling of a measurement bench in the presence of an implantable single-chamber pacemaker in vitro subjected to a conducted disturbance. The source of disturbance is a sinusoidal electrical signal with amplitude of 10 V; the frequency ranges studied correspond to the frequencies of the electrical distribution network (50/60 Hz) and to the frequencies of domestic applications (10/25KHz). The numerical simulations were carried out according to two methods, the first based on the finite element method using the Comsol multiphysics software, the second is based on the impedance method. The results obtained by the two methods are in good agreement, and this will allow us to calculate the voltage induced between the ends of the stimulator. These results allowed us to validate the proposed model.
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Djennah et al. (2022) studied Implantable Cardiac Pacemakers. Conducted electrical disturbance was evaluated on Induced voltage (Veb). In vitro modeling demonstrated that the induced voltage across a pacemaker is linearly dependent on the applied disturbance voltage, with |Veb| ranging from 0.29 to 0.32 |Vg| across tested frequencies.
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