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HomeMaterials Science ForumMaterials Science Forum Vol. 861A Novel Rotational Insertion Method for...

A Novel Rotational Insertion Method for Deflection-Free Delivery of a Microelectrode into Deep Brain

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Abstract:

Measuring deep brain neural activities with a microelectrode is of greatest importance in uncovering the mechanism of various brain disorders. In this operation, a microelectrode needs to be accurately inserted into deep the brain. However, a microelectrode of high flexibility would bend at encountering a layer of tough tissue during insertion, which would lead to deflection and impaired targeting accuracy. To deal with this problem, a rotational insertion method has been developed in this paper for deflection-free insertion. Rotation helps generate a dynamic anti-bending force to prevent buckling, and this force becomes larger with the increase of rotational speed. Thus, by controlling the rotational speed at which insertion is carried out, deflection-free insertion of a microelectrode deep into brain can be realized. The effectiveness of this method has been experimentally confirmed.

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Advances in Materials Processing XII

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Periodical:

Materials Science Forum (Volume 861)

Pages:

293-298

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.861.293

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Online since:

July 2016

Authors:

Zhe Li, Khoon Siong Ng, Tie Cheng Wu, Xiao Ping Li*

Keywords:

Bending, Buckling, Deep Brain Stimulation, Deflection, Microelectrode, Neural Activity Measuring, Rotational Insertion

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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