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Article Dans Une Revue Brain Stimulation Année : 2019

Low-Profile 3D Microelectrodes with Near-Uniform Current Density for High-Resolution Neural Stimulation

Résumé

Background: Uniform current density electrodes can reduce the risk of electrode corrosion and tissue damage, but existing geometries do not suit thin planar leads. Objectives: This study examines current density distribution (CDD) on lowprofile electrode designs and proposes an approach to obtain optimal geometries with near-uniform CDD requiring reduced recession depths. Methods: The electrodes are defined as parametric curves, analyzed using the quasi-static approach, and optimized using the downhill simplex method. Results: Obtained electrode designs with near-uniform CDD remain low profile and require twice as less recession depths comparing to reference designs. Conclusion: These electrode shapes are suitable for miniature high-resolution planar DBS leads
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hal-03376863 , version 1 (18-10-2021)

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Denys Nikolayev, Wout Joseph, Emmeric Tanghe, Marleen Welkenhuysen, Carolina Mora Lopez, et al.. Low-Profile 3D Microelectrodes with Near-Uniform Current Density for High-Resolution Neural Stimulation. Brain Stimulation, 2019, 12 (4), pp.e155-e157. ⟨10.1016/j.brs.2019.03.021⟩. ⟨hal-03376863⟩
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