Title :
Preliminary Study of the Thermal Impact of a Microelectrode Array Implanted in the Brain
Author :
Kim, Sohee ; Normann, Richard A. ; Harrison, Reid ; Solzbacher, Florian
Author_Institution :
Dept. of Electr. & Comput. Sci., Utah Univ., Salt Lake City, UT
fDate :
Aug. 30 2006-Sept. 3 2006
Abstract :
One requirement of a chronically implantable, wireless neural interface device is the integration of electronic circuitry with the microelectrode array. Since the electronic IC dissipates a certain amount of power, it will affect the temperature in the tissues surrounding the implant site. In this paper, the thermal influence of an integrated, 3-dimensional Utah electrode array, to be implanted in the brain was investigated with simulations using the finite element method (FEM). A temperature increase in the brain tissue was predicted using preliminary simulations with simplified models. The model and method used in the simulations were verified by simple in vitro experiments
Keywords :
arrays; bioelectric phenomena; biomedical electrodes; biomedical electronics; biomedical measurement; biothermics; finite element analysis; integrated circuits; microelectrodes; neurophysiology; physiological models; FEM model; brain tissues temperature; electronic IC; electronic circuitry; finite element method; in vitro experiments; integrated 3-dimensional Utah electrode array; microelectrode array implantation; neural recording; thermal impact; wireless neural interface device; Brain modeling; Circuits; Cities and towns; Electrodes; Finite element methods; Heat transfer; Implants; Microelectrodes; Temperature; USA Councils;
Conference_Titel :
Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE
Conference_Location :
New York, NY
Print_ISBN :
1-4244-0032-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2006.260307
