Fabrication of a prototype magnetic stimulator equipped with eccentric spiral coils

Takuya Kato; Masaki Sekino; Taiga Matsuzaki; Atsushi Nishikawa; Youichi Saitoh; Hiroyuki Ohsaki

doi:10.1109/IEMBS.2011.6090559

Fabrication of a prototype magnetic stimulator equipped with eccentric spiral coils

Annu Int Conf IEEE Eng Med Biol Soc. 2011:2011:1985-8. doi: 10.1109/IEMBS.2011.6090559.

Authors

Takuya Kato¹, Masaki Sekino, Taiga Matsuzaki, Atsushi Nishikawa, Youichi Saitoh, Hiroyuki Ohsaki

Affiliation

¹ Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan. kato@ohsaki.k.u-tokyo.ac.jp

PMID: 22254723
DOI: 10.1109/IEMBS.2011.6090559

Abstract

The development of compact magnetic stimulators will enable us to treat some intractable neurological diseases at one's home. In this study, we propose eccentric spiral coils which induce sufficient eddy currents in the brain at lower driving currents for the stimulator circuit. Numerical simulations based on the finite element method showed the advantages of the proposed design. A prototype coil and driving circuit were fabricated. The coil generated a magnetic field of 1.41 T at the maximum output level of stimulator.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Computer-Aided Design
Equipment Design
Equipment Failure Analysis
Magnetics / instrumentation*
Radiation Dosage
Reproducibility of Results
Sensitivity and Specificity
Telemetry / instrumentation*
Transcranial Magnetic Stimulation / instrumentation*