Design optimization of stimulation coil system for nerve stimulation

Author

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

Author_Institution

Dept. of Electr. Eng. & Comput. Eng., Waseda Univ., Tokyo, Japan

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

2159

Lastpage

2161

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, the authors 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

Keywords

biomagnetism; biomedical equipment; coils; finite element analysis; genetic algorithms; neurophysiology; radiation therapy; circuit equations; design optimization; desired flux distribution; magnetic stimulation therapy without pain; main coil; medical instrumentation; nerve stimulation; numerical magnetic field analysis; optimal coil current; plural coils; pudendal nerve; stimulation coil system; sub-coils; Coils; Design optimization; Electrical stimulation; Finite element methods; Genetic algorithms; Magnetic analysis; Magnetic fields; Magnetic stimulation; Medical treatment; Pain;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706837

Filename

706837