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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Nikolayev et al. - 2019 - Low-profile 3D microelectrodes with near-uniform c.pdf (315.21 Ko)
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