Design of a new low-intensity focused ultrasound stimulation system with homogeneous magnetic field

In terms of clinical neurophysiology, transcranial magnetic stimulation (TMS) is regarded as a effective tool for the diagnosis and treatment. In the past decade, experts published many articles about the potential of transcranial stimulation. But in the best case, an advanced TMS device can not accurately locate and stimulate the brain volume of less than several tens of cubic centimeters of position. This is because the spatial distribution of the magnetic fields cannot be effectively concentrated or focused. In this paper, we put forward a new method to stimulating cortical tissue, which, in principle, could provide much precisely localization of the excitation parts as well as deeper penetration into the brain. Transcranial ultrasound stimulation (TUS) is a new brain stimulation technology, which transfers low-intensity focused ultrasonic energy through the intact skull and non-invasively modulates neural activity in the brain.