Microcoil-array-based Multichannel Transcutaneous Transmission for Implantable neural Electrical Stimulation

Document Type

Article

Publication Date

2012

Publication Title

Journal of Medical and Biological Engineering

Volume

32

First page number:

123

Last page number:

130

Abstract

A microcoil-array-based multichannel wireless implantable neural stimulator for power and data transmission is developed. The microcoil array is fabricated using four processing technologies, namely enameled wire, printed circuit board (PCB), flexible printed circuit board (FPC), and 4-layer FPC. The coupling efficiencies of the coils are tested under ideal coupling and with spatial mismatch. The experimental results indicate that the decline of output voltage is less than 15% for all microcoils if the horizontal mismatch is less than 3 mm and the angular mismatch is less than 30°. The results also demonstrate that FPC coils produce a higher output voltage than that produced by PCB coils of equal size. The 4-layer FPC coils produce the highest output voltage for a given coil size. An experimental multichannel transmission device is built with a 2×2 microcoil array. The preliminary results show the feasibility of using a microcoil array to achieve multichannel transcutaneous transmission of neural electrical stimulation

Keywords

Electrical stimulation; Implant; Inductive coupling; Microcoil array; Multichannel

Disciplines

Electrical and Computer Engineering | Electrical and Electronics | Heat Transfer, Combustion | Mechanical Engineering | Power and Energy | Signal Processing

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

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