NDLI: Optimization of an implantable volume conduction antenna

Content Provider	IEEE Xplore Digital Library
Author	Wessel, B.L. Roche, P. Mingui Sun Sclabassi, R.J.
Copyright Year	2004
Description	Author affiliation: Dept. of Neurological Surg., Pittsburgh Univ., PA, USA (Wessel, B.L.; Roche, P.; Mingui Sun; Sclabassi, R.J.)
Abstract	As implantable devices become increasingly sophisticated, there is a strong need for developing a wireless data communication channel between these devices and external computers. This important problem has been studied and an antenna is being designed based on the volume conduction of biological tissues. Closed-form equation and finite element analyses were performed for the case of brain implantation using a spherical volume conduction model of the head. Finite element proofs of concept in 2D and 3D demonstrated the influence of epoxy and a volume conductor reflector on volume currents, exhibiting changes in the far field as controlled by the near field. A 3D finite element analysis showed an increased signal transduction of 35% as compared to the 3D analytical analysis, which was not able to simulate the epoxy. The optimum angle of inclination is shallower than what was intuitively thought, indicating that the antenna elements destructively interfere with the generated surface voltages, requiring the antenna elements to be rotated away from each other.
Starting Page	4111
Ending Page	4114
File Size	1244243
Page Count	4
File Format	PDF
ISBN	0780384393
DOI	10.1109/IEMBS.2004.1404147
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite element methods Signal analysis Wireless communication Data communication Biology computing Biological tissues Equations Performance analysis Biological system modeling Brain modeling volume conduction Antenna data communication dipole finite element analysis implantable device neuro-engineering neural prosthesis telemetry
Content Type	Text
Resource Type	Article

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