Interference thresholds for active implantable cardiovascular devices in occupational low-frequency electric and magnetic fields: a numerical and in vitro study

Zhou, Mengxi; Kourtiche, Djilali; Claudel, Julien; Deschamps, François; Magne, Isabelle; Roth, Patrice; Schmitt, Pierre; Souques, Martine; Nadi, Mustapha

doi:10.1016/j.medengphy.2022.103799

Cited by 6 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It necessitates high-intensity EFs with the same properties as in the real case study to generate equivalent exposures. We applied an experimental EF exposure system designed for immunity tests of cardiac implants, capable of delivering EFs up to 50 kV m −1 at 50 Hz (figure 4(A)) (Zhou et al 2022). The phantom was installed in the center of the lower plate and grounded by connecting to it using 2 metallic pedestals (figures 4(B) and (C).…”

Section: Experimental Set-upmentioning

confidence: 99%

“…A funnel-shaped phantom is employed in the in vitro tests, to replicate EF inductions in locations where cardiac implants are installed in human body as the substitute study. The immunity of cardiac implants exposed to EFs was investigated using this phantom (Gercek et al 2017a, Zhou et al 2022), however, without experimental validation. In this paper, the interferences are characterized through experimental measurements of the induced voltages.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Interference voltage measurement and analysis of cardiac implants exposed to electric fields at extremely low frequency

Zhou,

Kourtiche,

Claudel

et al. 2024

Biomed. Phys. Eng. Express

Self Cite

View full text Add to dashboard Cite

Objective. The possibility of interference by electromagnetic fields in the workplaces with cardiac implants is a concern for both individuals and employers. This article presents an analysis of the interference to which cardiac implants are subjected under high-intensity electric field at the power frequency. Approach. Evaluations of interference were conducted by studying the induced voltages at the device input in the real case study and the substitute study, and establishing an association between them with the equivalence factor F. A funnel-shaped phantom, designed for in vitro testing and representing the electrical characteristics of the locations where cardiac implants are installed, was used in the substitute study. A measuring system was implemented to measure the induced voltage at the device input under high intensity electric fields. Main results. The induced voltages obtained in the experimental measurements align with the findings of the numerical study in the phantom. By applying the equivalence factors derived between the real case study and the substitute study (2.39 for unipolar sensing; 3.64 for bipolar sensing), the induced voltages on the cardiac implants can be determined for the real case using the substitute experimental set-up. Significance. The interference voltages on the cardiac implants under electric field exposures at low frequency were experimentally measured with detailed description. The findings provide evidence for an analysis method to systematically study the electromagnetic interference on the cardiac implants at low frequency.

show abstract

Section: Experimental Set-upmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%