Electromagnetic modeling and design optimization of intra-cortical micro-electrodes

Author

Gabran, S.R.I. ; Saad, J.F.H. ; Salama, M.M.A. ; Mansour, R.R.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada

fYear

2011

fDate

April 27 2011-May 1 2011

Firstpage

663

Lastpage

666

Abstract

This study aims to investigate the electrodynamics of intra-cortical micro-electrodes and the effects of the different design parameters on the electrode electrical functionality. Finite difference time domain (FDTD) was used to create a low frequency electromagnetic model for the stimulation electrodes and the surrounding brain tissue. The paper also presents the effect of mechanical reinforcement metal planes on the electric field distribution within the brain tissue. The knowledge extracted from the simulation results will be used in the optimization of micro-electrode architectures and stimulation pads layouts in order to improve the electrodes functionality and biocompatibility.

Keywords

bioMEMS; biomedical electrodes; brain; electrodynamics; finite difference time-domain analysis; microelectrodes; neurophysiology; FDTD; brain tissue; design optimization; design parameter effects; electric field distribution; electrode electrical functionality; electromagnetic modeling; finite difference time domain analysis; intracortical microelectrode electrodynamics; low frequency electromagnetic model; mechanical reinforcement; metal planes; microelectrode architecture optimization; microelectrode biocompatibility; microelectrode functionality; microelectrode stimulation pads layout optimization; stimulation electrodes; Brain modeling; Electric fields; Electrodes; Finite difference methods; Metals; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Engineering (NER), 2011 5th International IEEE/EMBS Conference on

Conference_Location

Cancun

ISSN

1948-3546

Print_ISBN

978-1-4244-4140-2

Type

conf

DOI

10.1109/NER.2011.5910635

Filename

5910635