Design and Construction of a Portable Transcranial Magnetic Stimulation (TMS) Apparatus for Migraine Treatment


          

刊名：Journal of Medical Devices
作者：Renaud Charlet de Sauvage（University of Bordeaux 1）
Anne Beuter（University of Bordeaux 1）
Isabelle Lagroye（University of Bordeaux 1）
Bernard Veyret（University of Bordeaux 1）
刊号：611B0028
ISSN：1932-6181
出版年：2010
年卷期：2010, vol.4, no.1
页码：015002-1--015002-6
总页数：6
分类号：R31
关键词：Transcranial magnetic stimulation；Migraine with aura；Clinical trials；Magnetic fields
参考中译：
语种：eng
文摘：A portable transcranial magnetic stimulation (TMS) prototype was designed and constructed for use in clinical trials to manage the pain associated with migraine with aura. In this system, a half-sinusoid (optionally a full-sine) TMS pulse is delivered into a circular coil. The pulse triggering is controlled by a switch in the coil handle. The pulse intensity and polarity are adjustable. Measured pulse parameters (period ≈202 μs, maximum magnetic field at coil center ≈0.7 T) corresponded to expected values and were in the range described for commercially available TMS apparatus. The maximum current density, computed 3 cm below the coil using a simple model of brain anatomy, was approximately 1.9 times the motor threshold, thus ensuring a sufficient margin for reaching the neuronal threshold in the target area.



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