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Highly Flexible Precisely Braided Multielectrode Probes and Combinatorics for Future Neuroprostheses
Journal article   Open access   Peer reviewed

Highly Flexible Precisely Braided Multielectrode Probes and Combinatorics for Future Neuroprostheses

Taegyo Kim, Kendall Schmidt, Christopher Deemie, Joanna Wycech, Hualou Liang and Simon F. Giszter
Frontiers in neuroscience, v 13, pp 613-613
18 Jun 2019
PMID: 31275102
url
https://doi.org/10.3389/fnins.2019.00613View
Published, Version of Record (VoR)CC BY V4.0 Open

Abstract

braid microelectrodes neural implants neural interfaces neuroprosthesis Neuroscience
The braided multielectrode probe (BMEP) is an ultrafine microwire bundle interwoven into a precise tubular braided structure, which is designed to be used as an invasive neural probe consisting of multiple microelectrodes for electrophysiological neural recording and stimulation. Significant advantages of BMEPs include highly flexible mechanical properties leading to decreased immune responses after chronic implantation in neural tissue and dense recording/stimulation sites (24 channels) within the 100–200 μm diameter. In addition, because BMEPs can be manufactured using various materials in any size and shape without length limitations, they could be expanded to applications in deep central nervous system (CNS) regions as well as peripheral nervous system (PNS) in larger animals and humans. Finally, the 3D topology of wires supports combinatoric rearrangements of wires within braids, and potential neural yield increases. With the newly developed next generation micro braiding machine, we can manufacture more precise and complex microbraid structures. In this article, we describe the new machine and methods, and tests of simulated combinatoric separation methods. We propose various promising BMEP designs and the potential modifications to these designs to create probes suitable for various applications for future neuroprostheses.

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