Design optimization of stimulation coil system for nerve stimulation

T. Onuki; S. Wakao; T. Miyokawa; Y. Nishimura; N. Ishikawa; H. Hosaka

doi:10.1109/20.706836

Design optimization of stimulation coil system for nerve stimulation

T. Onuki, S. Wakao, T. Miyokawa, Y. Nishimura, N. Ishikawa, H. Hosaka

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Magnetic stimulation therapy without pain is being studied as an alternative to electrical stimulation therapy with pain. This paper presents a novel coil arrangement including the two sub-coils besides the main coil. This scheme results in the desired flux distribution penetrating more deeply into the tissue. Each optimal coil current and the optimal sub-coil location are derived with the aid of numerical magnetic field analysis. The derivation is carried out by means of the genetic algorithm combined with the finite element method. Moreover, we incorporate the circuit equations with the above methods. The results suggest that the magnetic stimulation with plural coils is effective for the pudendal nerve in the deep site.

Original language	English
Pages (from-to)	2156-2158
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	34
Issue number	4 PART 1
DOIs	https://doi.org/10.1109/20.706836
Publication status	Published - 1998 Dec 1

Keywords

Finite element method
Genetic algorithm
Magnetic stimulation
Nerve stimulation site

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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AU - Onuki, T.

AU - Wakao, S.

AU - Miyokawa, T.

AU - Nishimura, Y.

AU - Ishikawa, N.

AU - Hosaka, H.

PY - 1998/12/1

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N2 - Magnetic stimulation therapy without pain is being studied as an alternative to electrical stimulation therapy with pain. This paper presents a novel coil arrangement including the two sub-coils besides the main coil. This scheme results in the desired flux distribution penetrating more deeply into the tissue. Each optimal coil current and the optimal sub-coil location are derived with the aid of numerical magnetic field analysis. The derivation is carried out by means of the genetic algorithm combined with the finite element method. Moreover, we incorporate the circuit equations with the above methods. The results suggest that the magnetic stimulation with plural coils is effective for the pudendal nerve in the deep site.

AB - Magnetic stimulation therapy without pain is being studied as an alternative to electrical stimulation therapy with pain. This paper presents a novel coil arrangement including the two sub-coils besides the main coil. This scheme results in the desired flux distribution penetrating more deeply into the tissue. Each optimal coil current and the optimal sub-coil location are derived with the aid of numerical magnetic field analysis. The derivation is carried out by means of the genetic algorithm combined with the finite element method. Moreover, we incorporate the circuit equations with the above methods. The results suggest that the magnetic stimulation with plural coils is effective for the pudendal nerve in the deep site.

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