Objective: A new Repetitive Transcranial Magnetic Stimulation (rTMS) therapy system, NPX-101, with proprietary Star-Shaped Coils (SSCs) and Shield is intended to mitigate the risks of 40% incidence of headache and scalp discomfort during or after rTMS treatment. Preliminary feasibility tests evaluated the effectiveness of SSCs over the predicate Figure-of-Eight Coils (FOECs) in producing stronger energy for reaching 1-5 cm depth in prosthetic brain and in reducing unwanted surface stimulation by Shield protection. Method: Tests were performed by high computing simulation in a brain tissue model followed by feasibility experiments. Oscilloscope and arbitrary waveform generators were used to induce eddy currents in SSCs and examine its efficacy over the FOECs. A 1500Volt, 50uF capacitor was deployed to generate stimulation pulses and rapid time-dependent magnetic fields. Eddy currents induced by SSCs and FOECs were measured by a sensor, at various depths, and the magnetic field distribution was recorded. Standard motor threshold and...

Article PDF first page preview

Article PDF first page preview
Article PDF first page preview
You do not currently have access to this article.