Multi-Disciplinary Challenges in Tissue Modeling for Wireless Electromagnetic Powering: A Review

Wireless electromagnetic powering of implantable medical devices is a diverse research area, with goals including replacing percutaneous wires, miniaturizing and extending the lifetime of implanted devices, enabling wireless communication, and biosensing, all while maximizing safety and efficiency o...

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Bibliographic Details
Published in:IEEE sensors journal 2017-10, Vol.17 (20), p.6498-6509
Main Authors: Bocan, Kara N., Mickle, Marlin H., Sejdic, Ervin
Format: Article
Language:English
Subjects:
Conductivity
Dielectric measurement
Dielectrics
Electromagnetics
implantable medical devices
Permittivity
Safety
Temperature measurement
tissue dielectric properties
transcutaneous energy transfer
Wireless power transfer
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Summary:Wireless electromagnetic powering of implantable medical devices is a diverse research area, with goals including replacing percutaneous wires, miniaturizing and extending the lifetime of implanted devices, enabling wireless communication, and biosensing, all while maximizing safety and efficiency of wireless power transfer. Many challenges in wireless transcutaneous powering are associated with tissue as an electromagnetic transmission medium. Tissue is lossy and variable, and safety is a concern due to absorption of electromagnetic energy in high-water-content tissue. The purpose of this overview is to summarize reported variability of tissue properties, particularly in the context of electromagnetic safety, with a focus on models of tissue that can represent variability in the design and evaluation of systems for wireless transcutaneous power transfer.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2017.2748338