Electric Current Transmission Through Tissues of the Vestibular Labyrinth of a Patient: Perfection of the Vestibular Implant

An electric model of current transmission through tissues of the vestibular labyrinth of a patient is suggested. To stimulate directly the vestibular nerve in surgical operation, terminations of the electrodes are implanted through the bone tissue of the labyrinth into the perilymph in the vicinity...

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Bibliographic Details
Published in:Russian physics journal 2018-03, Vol.60 (11), p.2019-2024
Main Authors: Demkin, V. P., Shchetinin, P. P., Melnichuk, S. V., Kingma, H., Van de Berg, R., Pleshkov, M. O., Starkov, D. N.
Format: Article
Language:English
Subjects:
Analysis
Circuits
Condensed Matter Physics
Dielectric materials
Dielectric properties
Electrical conductivity
Electrical resistivity
Electrodes
Hadrons
Heavy Ions
Lasers
Mathematical and Computational Physics
Mathematical models
Nerves
Nuclear Physics
Optical Devices
Optics
Parameters
Photonics
Physics
Physics and Astronomy
Signal quality
Theoretical
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Summary:An electric model of current transmission through tissues of the vestibular labyrinth of a patient is suggested. To stimulate directly the vestibular nerve in surgical operation, terminations of the electrodes are implanted through the bone tissue of the labyrinth into the perilymph in the vicinity of the vestibular nerve. The biological tissue of the vestibular labyrinth surrounding the electrodes and having heterogeneous composition possesses conductive and dielectric properties. Thus, when a current pulse from the vestibular implant is applied to one of the electrodes, conductive disturbance currents may arise between the electrodes and the vestibular nerves that can significantly deteriorate the direct signal quality. To study such signals and to compensate for the conductive disturbance currents, an equivalent electric circuit with actual electric impedance properties of tissues of the vestibular system is suggested, and the time parameters of the conductive disturbance current transmission are calculated. It is demonstrated that these parameters can reach large values. The suggested electric model and the results of calculations can be used for perfection of the vestibular implant.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-018-1318-5