Triangular network personalized multi-coil transcranial magnetic stimulation array and its control method

Abstract

The invention discloses a triangular network personalized multi-coil transcranial magnetic stimulation array and a control method thereof, belonging to the technical field of transcranial magnetic stimulation. The array includes: a series of hexagonal prism connection nodes whose gating direction can be controlled by the host computer, and a series of coil segments forming equilateral triangles. In the triangular network personalized multi-coil magnetic stimulation array provided by the present invention, coil segments and nodes are used to form a series of adjacent equilateral triangle stimulation units, and the control of the gating direction and the down-leading direction of the nodes by the host computer is realized. Personalized magnetic stimulation. Using the novel transcranial magnetic stimulation coil array proposed by the present invention, multiple parts of the whole brain can be stimulated synchronously. The difference from the traditional multi-coil magnetic stimulation array is that the shape, size and position of the stimulation unit can be selected. The coil array stimulation form and stimulation position are flexible and changeable, which can realize the personalized requirements for transcranial magnetic stimulation.

Description

technical field [0001] The invention relates to the technical field of transcranial magnetic stimulation, in particular to a triangular network personalized multi-coil transcranial magnetic stimulation array and a control method thereof, which can realize personalized transcranial magnetic stimulation. Background technique [0002] Since the magnetic permeability of each part of the head is basically the same, when the magnetic field passes through high-impedance tissues such as skull or scalp, the magnetic field strength will hardly attenuate, and the induced current in brain tissue will not be affected by the existence of high-impedance tissues. strength, such as figure 1 . In the human brain, the impedance of the scalp, fat and bones is relatively high, and the induced current is proportional to the conductivity of the tissue in the brain, so the intensity of the induced current is small, and it will hardly trigger the excited state of the brain's pain receptors, so it c...

AI Technical Summary

Problems solved by technology

Due to the shape of the circular coil itself, there will be intervals between adjacent coils, which makes it difficult to obtain high-resolution stimulation. Secondly, the size of the stimulation unit of the circular coil is fixed, and the stimulation area and shape cannot be realized. adjustment

Although square coils and straight wire coils solve the resolution problem of circular coils, due to their special shapes, they can only be stimulated in the form of rectangles or lines, and in many cases it is difficult to meet the flexibility of magnetic stimulation.

[0005] In summary, figure 2 Several multi-coil transcranial magnetic stimulation design schemes shown in have problems such as low resolution and shape limitations, which also limit the development of multi-coil transcranial magnetic stimulation technology to a certain extent

In the process of realizing multi-coil transcranial magnetic stimulation, the shape, size and position of the stimulation coil can be adjusted individually according to the needs, which cannot be realized by the traditional multi-coil scheme

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