DocumentCode
544969
Title
Electrical impedance of electrode encapsulation tissue
Author
Grill, Warren M. ; Mortimer, J. Thomas
Author_Institution
Dept. of Biomed. Eng., Case Western Reserve Univ., Cleveland, OH, USA
Volume
4
fYear
1992
fDate
Oct. 29 1992-Nov. 1 1992
Firstpage
1376
Lastpage
1377
Abstract
The complex resistivity of the encapsulation tissue that surrounds chronically implanted electrodes was measured in vitro as a function of frequency. The value of resistivity and its frequency dependence were functions of the morphology of the tissue. The results indicate that the encapsulation tissue will offer a significant barrier to current flow, and suggest that the encapsulation should be included when calculating the electric field induced by chronically implanted neural prosthesis electrodes.
Keywords
bioelectric phenomena; biological tissues; biomedical electrodes; neurophysiology; prosthetics; chronically implanted electrodes; complex resistivity; electrical impedance; encapsulation tissue; frequency dependence; neural prosthesis electrodes; Instruments; Neurosurgery; Training;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location
Paris
Print_ISBN
0-7803-0785-2
Type
conf
DOI
10.1109/IEMBS.1992.5761837
Filename
5761837
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