Portable transcranial electrical stimulation electrode fixing device for whole brain

Abstract

The utility model relates to the technical field of transcranial electrical stimulation, and provides a portable transcranial electrical stimulation electrode fixing device for the whole brain, which comprises a first positioning belt and a second positioning belt, the two ends of the second positioning belt are adjustably connected with the first positioning belt, and the two ends of the second positioning belt are opposite in the connection state of the first positioning belt; the two ends of the third positioning belt are adjustably connected with the first positioning belt, the two ends of the third positioning belt are opposite in the connecting state of the first positioning belt, and the second positioning belt and the third positioning belt are overlapped in a crossed mode; the fourth positioning belt, the second positioning belt and the third positioning belt are arranged on two sides of the first positioning belt; at least one of the first positioning belt, the second positioning belt and the third positioning belt is provided with a detachable sponge electrode. According to the utility model, the degree of adaptation to the skull is improved, the electrode is more tightly attached to the head and is not easy to shift, and meanwhile, the flexibility of the mounting position of the sponge electrode is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transcranial electrical stimulation, and in particular to a portable transcranial electrical stimulation electrode fixing device for the whole brain. Background Art

[0002] Transcranial electrical stimulation (TES) is a non-invasive technology that uses weak current to regulate the activity of cerebral cortical nerve cells. It has the effect of regulating the excitability of the cerebral cortex. Traditional electrical stimulation instruments consist of a micro-electrical stimulation central control box and one or more groups of sponge electrodes. A group of electrodes includes a positive electrode sheet and a negative electrode sheet. After the electrodes are placed on the surface of the brain, a specific pattern of low-intensity current is applied to a specific brain area through electrodes of different sizes. The central control box outputs a weak current of 0.5-4mA, and the current flows from the positive electrode to the negative electrode, forming a closed loop. Part of the current weakens when passing through the scalp and skull, and the other part of the current passes through the skull and acts on the cerebral cortex. The position and size of the electrodes, the intensity and duration of the current, the location of the target, and the neural state during stimulation may have a significant impact on the cortical effects induced by transcranial electrical stimulation. A large number of related studies have confirmed that transcranial electrical stimulation can improve human sports performance, including improving muscle explosiveness, body balance, endurance performance, and accelerating sports skill learning.

[0003] In the existing transcranial electrical stimulation operation practice, most of the offline stimulation tasks are completed after the electrode placement area is determined according to the international 10-20 system. The existing electrode patch fixing method is prone to displacement during exercise, and it is impossible to achieve online stimulation during exercise. Utility Model Content

[0004] The utility model provides a portable transcranial electrical stimulation electrode fixing device for the whole brain, which is used to solve the defect that the electrode piece fixing method in the prior art is prone to displacement during exercise, and the sponge electrode installation position has high flexibility and a simple installation method. The overall structure is light and convenient to wear during exercise and is not easy to shift.

[0005] The utility model provides a portable transcranial electrical stimulation electrode fixing device for the whole brain, comprising:

[0006] A first positioning belt, wherein both ends of the first positioning belt are adjustably connected;

[0007] a second positioning belt, wherein both ends of the second positioning belt are adjustably connected to the first positioning belt, and when the first positioning belt is connected, both ends of the second positioning belt are opposite to each other;

[0008] A third positioning belt, both ends of which are adjustably connected to the first positioning belt, and in a connected state with the first positioning belt, both ends of the third positioning belt are opposite to each other, and the second positioning belt and the third positioning belt are cross-overlaid;

[0009] A fourth positioning belt, wherein the first portion of the fourth positioning belt is connected to the first positioning belt, the second portion of the fourth positioning belt is connected to the first positioning belt, the first portion and the second portion are arranged opposite to each other, and the first portion and the second portion are adjustably connected, and the fourth positioning belt, the second positioning belt, and the third positioning belt are placed on both sides of the first positioning belt;

[0010] At least one of the first positioning belt, the second positioning belt and the third positioning belt is provided with a detachable sponge electrode.

[0011] The portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model comprises a mounting seat, which is slidably connected to the first positioning belt, the second positioning belt and the third positioning belt, and the sponge electrode is mounted on the mounting seat.

[0012] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the mounting seat includes a mounting body and a connecting beam, the connecting beam is arranged on one side of the mounting body, and there is a gap between the connecting beam and the mounting body, and the gap is used to pass through the first positioning belt, the second positioning belt and the third positioning belt;

[0013] A mounting groove is provided on the other side of the mounting body, and the sponge electrode is mounted in the mounting groove.

[0014] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the mounting body includes a connecting protrusion, and the connecting protrusion and the connecting beam are placed on the same surface;

[0015] The second positioning belt is provided with first holes at intervals, and the third positioning belt is provided with second holes at intervals. The first holes and the second holes are buckled with the connecting protrusions of the mounting seat on the first positioning belt.

[0016] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the mounting body comprises a first baffle, a second baffle and a back plate, the first baffle is connected to one side of the back plate, the second baffle is retractably connected to the other side of the back plate, and the first baffle and the second baffle are relatively arranged on the same surface of the back plate to form the mounting groove;

[0017] Wherein, the connecting beam is installed on the other side of the back plate.

[0018] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the back plate is provided with a guide groove, a reset member is provided in the guide groove, one end of the reset member is connected to the back plate, and the other end of the reset member is connected to the second baffle.

[0019] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the mounting body also includes a guide block, one end of the guide block is connected to the second baffle, the other end of the guide block is connected to the reset member, and the guide block is slidably matched with the guide groove.

[0020] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the first part and the second part of the fourth positioning belt have the same structure, including a first hollow area and a second hollow area, and the first hollow area and the second hollow area are used to place human ears.

[0021] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the two ends of the first positioning belt are connected by Velcro, and the first part and the second part of the fourth positioning belt are connected by Velcro.

[0022] According to the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model, the first positioning belt, the second positioning belt, the third positioning belt and the fourth positioning belt are elastic.

[0023] The portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model has an adjustable length of the first positioning belt, an adjustable length and a connection position of the second positioning belt and the first positioning belt, and an adjustable length and a connection position of the third positioning belt and the first positioning belt, thereby improving the adaptability of the portable transcranial electrical stimulation electrode fixing device for the whole brain. In addition, the band-shaped structure fits the head more closely and is not easy to shift. The sponge electrode can be detachably installed on the positioning belt, thereby improving the flexibility of the sponge electrode installation position. The overall structure is simple, light and convenient to wear during exercise, and electrical stimulation in various scenarios can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1It is a schematic diagram of the overall structure of the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model in the wearing state;

[0026] Figure 2 This is a front view of the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model in a wearing state;

[0027] Figure 3 It is a rear view of the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model in a wearing state;

[0028] Figure 4 It is a right view of the portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model in a wearing state;

[0029] Figure 5 It is a schematic diagram of the overall structure of the mounting base provided by the utility model;

[0030] Figure 6 It is a schematic diagram of the installation slot structure provided by the utility model;

[0031] Figure 7 This is a schematic diagram of the second baffle provided by the utility model in the pulled-open state;

[0032] Figure 8 It is a schematic diagram of the internal structure of the backboard provided by the utility model.

[0033] Reference numerals:

[0034] 100: first positioning belt; 101: mounting seat; 102: connecting protrusion; 103: Velcro; 200: second positioning belt; 201: first hole position; 300: third positioning belt; 301: second hole position; 400: fourth positioning belt; 401: first belt strip; 402: second belt strip; 403: third belt strip;

[0035] 110: mounting body; 120: connecting beam; 111: mounting groove; 112: first baffle plate; 113: second baffle plate; 114: back plate; 130: reset member; 131: guide block; 132: guide groove. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0040] Combine the following Figures 1 to 8 It should be understood that the following description is only an illustrative embodiment of the present invention and does not constitute a limitation on the present invention.

[0041] like Figure 1As shown, the utility model provides a portable transcranial electrical stimulation electrode fixing device for the whole brain, comprising: a first positioning belt 100, a second positioning belt 200, a third positioning belt 300 and a fourth positioning belt 400, the two ends of the first positioning belt 100 are adjustably connected; the two ends of the second positioning belt 200 are adjustably connected to the first positioning belt 100, and when the first positioning belt 100 is connected, the two ends of the second positioning belt 200 are opposite; the two ends of the third positioning belt 300 are adjustably connected to the first positioning belt 100, and when the first positioning belt 100 is connected, the three ends of the third positioning belt 300 are opposite. The two ends of the positioning belt 300 are opposite to each other, and the second positioning belt 200 and the third positioning belt are cross-stacked; the first part of the fourth positioning belt 400 is connected to the first positioning belt 100, and the second part of the fourth positioning belt 400 is connected to the first positioning belt 100. The first part and the second part are arranged opposite to each other, and the first part and the second part are adjustably connected. The fourth positioning belt 400 and the second positioning belt 200 and the third positioning belt 300 are placed on both sides of the first positioning belt 100; at least one of the first positioning belt 100, the second positioning belt 200 and the third positioning belt 300 is provided with a detachable sponge electrode.

[0042] Among them, the first positioning belt 100 is adapted to the outer contour of the human head circumference, the second positioning belt 200 is arranged along the longitudinal direction of the human head, one end of the second positioning belt 200 is connected to the forehead part of the first positioning belt 100, and the other end of the second positioning belt 200 is connected to the back of the head part of the first positioning belt 100; one end of the third positioning belt 300 is connected to the position of the first positioning belt 100 near the left ear, and the other end of the third positioning belt 300 is connected to the position of the first positioning belt 100 near the right ear. The second positioning belt 200 and the third positioning belt 300 are both arranged on the top of the human head, and the second positioning belt 200 and the third positioning belt can be arranged vertically. The first positioning belt 100, the second positioning belt 200 and the third positioning belt 300 can be adjusted in length according to the size of each person's head to adapt to each person. The fourth positioning belt 400 is stuck at the chin of the human head, thereby fixing the first positioning belt 100, the second positioning belt 200 and the third positioning belt 300 on the human head and preventing them from moving; the fourth positioning belt 400 can be loose or tight, and the first positioning belt 100, the second positioning belt 200, the third positioning belt 300 and the fourth positioning belt 400 are flexible.

[0043] The sponge electrode releases current to stimulate a specific position of the head; the sponge electrode can be set on the first positioning belt 100, the second positioning belt 200, and the third positioning belt 300. Based on different stimulation tasks, which one or which positioning belts can be selected, and the position on the positioning belt can be selected. For example, the sponge electrode can be set on the first positioning belt 100, the second positioning belt 200, or the third positioning belt 300, or on the first positioning belt 100 and the second positioning belt 200, or on the first positioning belt 100, the second positioning belt 200, and the third positioning belt 300. In addition, one or more sponge electrodes can be set on each positioning belt.

[0044] The portable transcranial electrical stimulation electrode fixing device for the whole brain of the utility model is suitable for people of various head sizes. It has a simple structure, light weight, can be worn by athletes during training, has little interference with movement, and can adjust the position of the sponge electrode at any time according to the characteristics of the brain area, and is easy to operate.

[0045] In one embodiment of the present invention, the first positioning belt 100, the second positioning belt 200, the third positioning belt 300 and the fourth positioning belt 400 are elastic, so that the sponge electrode can fit closely to the human head and always be close to the subject's scalp without displacement during large-scale movements.

[0046] like Figures 1 to 4 As shown, the dotted line position of the positioning belt indicates the movable position of the mounting base 101, and the arrow indicates the movable direction.

[0047] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, two ends of the first positioning belt 100 are connected by Velcro 103 , and the first portion and the second portion of the fourth positioning belt 400 are connected by Velcro 103 .

[0048] like Figure 1 and Figure 4 As shown, in an optional embodiment of the utility model, the first part and the second part of the fourth positioning belt 400 have the same structure, including a first hollow area and a second hollow area, and the first hollow area and the second hollow area are used to place the human ear. In other words, the fourth positioning belt 400 is provided with a first hollow area and a second hollow area corresponding to the human ear, and the first part and the second part extend to the chin, and the first positioning belt 100 is fixed to the human head by the Velcro 103.

[0049] For example, for the first part, the first part includes a first strip 401, a second strip 402 and a third strip 403, one end of the first strip 401 and the second strip 402 are connected to the first positioning belt 100, there is a gap between the first strip 401 and the second strip 402, the other ends of the first strip 401 and the second strip 402 are connected to the third strip 403, and the third strip 403 is provided with a Velcro 103. The first strip 401 and the second strip 402 form a first hollow area.

[0050] like Figure 1 As shown, in other embodiments of the utility model, a portable transcranial electrical stimulation electrode fixing device for the whole brain includes a mounting seat 101, which is slidably connected to a first positioning belt 100, a second positioning belt 200 and a third positioning belt 300, and a sponge electrode is installed on the mounting seat 101.

[0051] In other words, the sponge electrode is connected to the positioning belt through the mounting seat 101. The working surface of the sponge electrode is attached to the head. The mounting seat 101 is detachably connected to the first positioning belt 100, the second positioning belt 200 and the third positioning belt 300, and the mounting seat can be slidably displaced on the first positioning belt 100, the second positioning belt 200 and the third positioning belt 300. The mounting seat can slide on the positioning belt to facilitate adjustment to the desired brain area for stimulation, and can locate faster and more accurately, and can also ensure the accuracy of repeated operation positions, so that relevant personnel can complete accurate transcranial electrical stimulation.

[0052] like Figure 5 and Figure 6 As shown, in a specific embodiment of the utility model, the mounting seat 101 includes a mounting body 110 and a connecting beam 120, the connecting beam 120 is arranged on one side of the mounting body 110, and there is a gap between the connecting beam 120 and the mounting body 110, and the gap is used to pass through the first positioning band 100, the second positioning band 200 and the third positioning band 300; the other side of the mounting body 110 is provided with a mounting groove 111, and the mounting groove 111 is used to install the sponge electrode.

[0053] That is, the mounting body 110 slides on the positioning belt through the connecting beam 120 to adjust the sponge electrode to a suitable position. The opening of the mounting groove 111 is arranged opposite to the connecting beam 120, so that the sponge electrode can fit tightly to the head.

[0054] For example, the mounting groove 111 has a tendency of being large inside and small at the outside. In other words, the width of the mounting groove 111 is larger on one side close to the connecting beam 120 and smaller on the opening side, that is, the bottom width of the mounting groove 111 is larger than the opening width, which facilitates the sponge electrode to be inserted at the bottom and is not easy to slip out.

[0055] In other embodiments of the present invention, the mounting body 110 includes a connecting protrusion 102, and the connecting protrusion 102 and the connecting beam 120 are placed on the same plane; the second positioning band 200 is provided with first hole positions 201 at intervals, and the third positioning band 300 is provided with second hole positions 301 at intervals, and the first hole positions 201 and the second hole positions 301 are engaged with the connecting protrusion 102 of the mounting seat 101 on the first positioning band 100.

[0056] That is to say, the second positioning belt 200 and the third positioning belt 300 are buckled with the connecting protrusions 102 at different positions through the holes at different positions, so as to adjust the length of use, thereby adapting to the head sizes of different people. Of course, the second positioning belt 200 and the first positioning belt 100, and the third positioning belt 300 and the first positioning belt 100 can also be connected in an adjustable manner such as snap buttons.

[0057] In other words, the mounting seat 101 is the connecting hub of the first positioning belt 100, the second positioning belt 200, and the third positioning belt 300. The mounting seat 101 may not be placed with a sponge electrode, and is only used to connect each positioning belt. Other mounting seats are separately set on the positioning belt to install the sponge electrodes for electrical stimulation. Of course, sponge electrodes can also be set in the mounting seat 101, but based on the actual application scenario, the sponge electrodes in the appropriate position are selected for electrical connection. The mounting seat 101 is used to connect the first positioning belt 100, the second positioning belt 200, and the third positioning belt 300, so that the second positioning belt 200 and the third positioning belt 300 can be adjusted steplessly on the first positioning belt 100. Among them, the mounting body 110 is provided with a protective layer of soft rubber material to avoid contact with the skin and discomfort to the user.

[0058] like Figure 6 and Figure 7 As shown, in a specific embodiment of the present invention, the mounting body 110 includes a first baffle 112, a second baffle 113 and a back plate 114, the first baffle 112 is connected to one side of the back plate 114, the second baffle 113 is retractably connected to the other side of the back plate 114, the first baffle 112 and the second baffle 113 are relatively arranged on the same surface of the back plate 114 to form a mounting groove 111; wherein, the connecting beam 120 is installed on the other side of the back plate 114. That is, the connecting beam 120 is not affected during the pulling process of the second baffle 113, the sponge electrode is placed on the back plate 114 after the second baffle 113 is pulled, and then the second baffle 113 is loosened, and the first baffle 112 and the second baffle 113 clamp the sponge electrode in the mounting groove 111. For example, the size of the mounting body 110 is 3×5cm or 5×5cm or 5×7cm.

[0059] like Figure 8As shown, in the embodiment of the present utility model, the back plate 114 is provided with a guide groove 132 , a reset member 130 is provided in the guide groove 132 , one end of the reset member 130 is connected to the back plate 114 , and the other end of the reset member 130 is connected to the second baffle 113 .

[0060] The reset member 130 may be a spring, and a plurality of reset members 130 arranged in parallel may be arranged in the guide groove 132 to increase the clamping force of the first baffle plate 112 and the second baffle plate 113 .

[0061] Of course, the back plate 114 and the second baffle plate 113 can also be stretched by other sliding structures. After the sponge electrode is installed, the second baffle plate 113 and the back plate 114 are limited by buckles or limiters to clamp the sponge electrode.

[0062] Further, continue to refer to Figure 8 In an optional embodiment of the present invention, the mounting body 110 further includes a guide block 131, one end of the guide block 131 is connected to the second baffle 113, the other end of the guide block 131 is connected to the reset member 130, and the guide block 131 is slidably matched with the guide groove 132. The guide block 131 is used for guiding to prevent the second baffle 113 from deflecting when resetting.

[0063] A transcranial electrical stimulation method based on a fixed cap with preassembled sponge electrodes, the method comprising the following steps:

[0064] Step 1: Perform wearing operation based on the brow center, occipital protuberance and ear as the reference position for wearing the first positioning belt 100 and the fourth positioning belt 400; and adjust the position of the sponge electrode on the first positioning belt 100;

[0065] Step 2: Based on the position of the stimulated area, the second positioning belt 200 is covered on the stimulated area, and then connected to the first positioning belt 100; and the position of the sponge electrode on the second positioning belt 200 is adjusted;

[0066] Step 3: The third positioning belt 300 covers the stimulated area and is then connected to the first positioning belt 100; and the position of the sponge electrode on the third positioning belt 300 is adjusted;

[0067] Step 4: Stimulate the stimulation site with preset parameters for the sponge electrode. The sponge electrode itself is not charged, and can be electrically connected to the positive and negative electrodes of the central control box to conduct current.

[0068] Avoiding the impact of human factors on the effective implementation of transcranial electrical stimulation, while reducing the complexity and installation time of the application process of transcranial electrical stimulation sponge electrodes, ensuring its electrode consistency and repeatability.

[0069] The portable transcranial electrical stimulation electrode fixing device for the whole brain provided by the utility model improves the adaptability of the portable transcranial electrical stimulation electrode fixing device for the whole brain through the adjustable length of the first positioning belt 100 used in this application, the adjustable length and connection position of the second positioning belt 200 and the first positioning belt 100, and the adjustable length and connection position of the third positioning belt 300 and the first positioning belt 100. In addition, the band-like structure fits the head more closely and is not easy to shift. The sponge electrode can be detachably installed on the positioning belt, which improves the flexibility of the sponge electrode installation position. The overall structure is simple, light and convenient to wear during exercise, and electrical stimulation in various scenarios can be achieved.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A portable transcranial electrical stimulation electrode fixing device for the whole brain, characterized in that: include: A first positioning belt, wherein both ends of the first positioning belt are adjustably connected; a second positioning belt, wherein both ends of the second positioning belt are adjustably connected to the first positioning belt, and when the first positioning belt is connected, both ends of the second positioning belt are opposite to each other; A third positioning belt, both ends of which are adjustably connected to the first positioning belt, and in a connected state with the first positioning belt, both ends of the third positioning belt are opposite to each other, and the second positioning belt and the third positioning belt are cross-overlaid; A fourth positioning belt, wherein the first portion of the fourth positioning belt is connected to the first positioning belt, the second portion of the fourth positioning belt is connected to the first positioning belt, the first portion and the second portion are arranged opposite to each other, and the first portion and the second portion are adjustably connected, and the fourth positioning belt, the second positioning belt, and the third positioning belt are placed on both sides of the first positioning belt; At least one of the first positioning belt, the second positioning belt and the third positioning belt is provided with a detachable sponge electrode.

2. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to claim 1, characterized in that: It comprises a mounting seat, the mounting seat is slidably connected with the first positioning belt, the second positioning belt and the third positioning belt, and the sponge electrode is mounted on the mounting seat.

3. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to claim 2, characterized in that: The mounting seat comprises a mounting body and a connecting beam, wherein the connecting beam is arranged on one side of the mounting body, and there is a gap between the connecting beam and the mounting body, wherein the gap is used to pass through the first positioning belt, the second positioning belt and the third positioning belt; A mounting groove is provided on the other side of the mounting body, and the sponge electrode is mounted in the mounting groove.

4. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to claim 3, characterized in that: The mounting body comprises a connecting protrusion, and the connecting protrusion and the connecting beam are placed on the same surface; The second positioning belt is provided with first holes at intervals, and the third positioning belt is provided with second holes at intervals. The first holes and the second holes are buckled with the connecting protrusions of the mounting seat on the first positioning belt.

5. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to claim 3, characterized in that: The mounting body comprises a first baffle, a second baffle and a back plate, the first baffle is connected to one side of the back plate, the second baffle is telescopically connected to the other side of the back plate, and the first baffle and the second baffle are arranged on the same surface of the back plate to form the mounting groove; Wherein, the connecting beam is installed on the other side of the back plate.

6. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to claim 5, characterized in that: The back plate is provided with a guide groove, a reset member is provided in the guide groove, one end of the reset member is connected to the back plate, and the other end of the reset member is connected to the second baffle.

7. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to claim 6, characterized in that: The mounting body further comprises a guide block, one end of which is connected to the second baffle, the other end of which is connected to the reset member, and the guide block is slidably matched with the guide groove.

8. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to any one of claims 1 to 6, characterized in that: The first part and the second part of the fourth positioning belt have the same structure, including a first hollow area and a second hollow area, and the first hollow area and the second hollow area are used to place human ears.

9. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to any one of claims 1 to 6, characterized in that: The two ends of the first positioning belt are connected by Velcro, and the first part and the second part of the fourth positioning belt are connected by Velcro.

10. The portable transcranial electrical stimulation electrode fixing device for the whole brain according to any one of claims 1 to 6, characterized in that: The first positioning belt, the second positioning belt, the third positioning belt and the fourth positioning belt are elastic.

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