The invention relates to the technical field of
medical instruments, in particular to a high-precision time interference non-invasive brain deep electrical stimulation method, equipment and
system, and solves the problems that two stimulation electrodes are used for each pair of current in traditional time interference-based non-invasive brain deep electrical stimulation, so that the
current distribution is relatively dispersed, and the stimulation focusing performance is relatively poor. According to the method, high-precision 4 * 1
electrode configuration is used, two electrodes for applying a stimulation current are changed into a 4 * 1
electrode form, the flowing path of the current is effectively limited, the current is more focused, and the focusing performance of the interference current is further improved. According to the device, high-precision current control is realized through the anti-phase output circuit, the 4 * 1
voltage division circuit, the
constant current source module and the impedance detection module; the
system supports forward and reverse
electrode position optimization, a personalized real finite element
head model simulation system based on MRI data is used for guiding practical application, the focusing performance of each pair of current in a target
brain region is improved, and therefore the overall stimulation precision in the target
brain region is improved.