Electrical stimulation device for oral muscle training

Abstract

The invention relates to an electrical stimulation device for oral muscle training. The oral muscle electrical stimulation device solves the problems that in the prior art, an oral muscle electrical stimulation device is difficult to carry out omnibearing multi-point stimulation on an oral muscle surface, and the stimulation mode is difficult to flexibly adjust. The device comprises an electrical stimulation assembly base used for being inserted into an oral cavity, a current control module is arranged in an assembly cavity in one end of the electrical stimulation assembly base and connected with an external power supply through a power supply circuit, and tongue and jaw muscle electrical stimulation structures are symmetrically arranged on the upper side and the lower side of the electrical stimulation assembly base. And buccal muscle group electrical stimulation structures are arranged on the left side and the right side of the electrical stimulation assembly seat. The device has the advantages of being flexible in stimulation mode, high in pertinence, wide in covering muscle group, good in using effect and high in comfort degree.

Description

Technical Field

[0001] This invention relates to the field of medical rehabilitation technology, and specifically to an electrical stimulation device for oral motor training. Background Technology

[0002] Sleep apnea syndrome, especially obstructive sleep apnea syndrome, is characterized by fatty tissue deposition in the pharynx, narrowing the airway and increasing inspiratory flow. This is because, while bone growth generally stops significantly after age 20, muscle and fat accumulation continues even after that age, leading to narrowing of the airway area. Additionally, with age and certain diseases, pharyngeal tone decreases, causing the tongue to be drawn into the trachea during inhalation, obstructing the airway and causing apnea. Studies show that in a supine position, normal individuals have their mouths closed and tongues raised, while patients with sleep apnea have their mouths open and tongues drooping. To address these symptoms and improve tongue autonomy, exercises such as electrical stimulation to strengthen the tongue muscles (primarily the tongue muscles) and nerve stimulation to restore pharyngeal tone are effective. Furthermore, oral muscle training is also effective in treating or preventing swallowing disorders.

[0003] As devices for training tongue muscles such as the genioglossus muscle through electrical stimulation, existing technologies train the tongue muscles by placing electrodes inside or outside the oral cavity and applying current to these electrodes to electrically stimulate the oral muscles, thereby increasing the tension of the oral muscles. However, because the electrodes placed outside the oral cavity are positioned in the transverse direction along the midline of the user's face, it is difficult to effectively stimulate only the deep muscles inside the oral cavity. In addition, existing oral muscle electrical stimulation devices have a narrow stimulation area, making it difficult to provide comprehensive multi-point stimulation of the oral muscles, and the stimulation mode cannot be flexibly adjusted and controlled, resulting in poor performance.

[0004] To address the shortcomings of existing technologies, people have conducted long-term research and proposed various solutions. For example, Chinese patent literature discloses an oral muscle training device and method [CN202380043851.1], which includes: a pair of electrodes disposed in the oral cavity, electrodes branching from one side of the pair of electrodes and disposed on the skin surface, and a circuit for transmitting intermediate frequency current between the electrodes. The pair of electrodes is located on the tongue, and the electrode disposed on the skin surface is located on the mandible or the anterior surface of the neck. The pair of electrodes can also be disposed on the tongue, and the electrode disposed on the skin surface is disposed around the entire periphery of the neck. The intermediate frequency current is a continuous wave current with a frequency of 3kHz or higher and less than 8kHz, or a discontinuous wave current with a frequency of 3kHz or higher and less than 8kHz that flows continuously for a specified time and then repeats without current flow for a specified time.

[0005] The above solution has solved to some extent the problem that existing oral electromyography devices cannot effectively stimulate only the deep muscles in the oral cavity. However, the solution still has many shortcomings, such as: narrow stimulation area, difficulty in stimulating the oral muscles from all directions and at multiple points, and the inability to flexibly adjust and control the stimulation method, resulting in poor performance. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing an electrical stimulation device for oral motor training.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an electrical stimulation device for oral muscle training, comprising an electrical stimulation mounting base for insertion into the oral cavity, a current control module being provided in the mounting cavity at one end of the electrical stimulation mounting base, the current control module being connected to an external power supply via a power supply circuit, symmetrically arranged tongue and palatal muscle electrical stimulation structures on the upper and lower sides of the electrical stimulation mounting base, and buccal muscle group electrical stimulation structures on the left and right sides of the electrical stimulation mounting base.

[0008] In the above-mentioned electrical stimulation device for oral muscle training, the upper and lower sides of the electrical stimulation assembly are provided with end face storage cavities for inserting the tongue and palatal muscle electrical stimulation structure, the left and right sides of the electrical stimulation assembly are provided with side storage cavities for rotating and storing the buccal muscle group electrical stimulation structure, and the middle of the electrical stimulation assembly is provided with a wire guide plate that separates the two end face storage cavities, and a suction channel is opened in the wire guide plate.

[0009] In the above-mentioned electrical stimulation device for oral muscle training, the tongue and palatine muscle electrical stimulation structure includes an electrical stimulation rotating connecting seat, which is rotatably set in the end face receiving cavity by adjusting the rotating shaft, and the end of the electrical stimulation connecting seat away from the adjusting rotating shaft is connected to an electrical stimulation extension seat through a pull-out telescopic part. A flexible bending part is provided between the electrical stimulation extension seat, the electrical stimulation rotating connecting seat and the pull-out telescopic part, and an electrical circuit passage is passed through the electrical stimulation extension seat, the electrical stimulation rotating seat, the pull-out extension part and the flexible bending part.

[0010] In the aforementioned electrical stimulation device for oral muscle training, at least one large-sized electrode is provided in the middle of both the electrical stimulation extension seat and the electrical stimulation rotating connection seat. Several small-sized electrode sheets are distributed around the large-sized electrode sheet. The small-sized electrode sheets and the large-sized electrode sheets are connected to the current control module through independent circuits. The small-sized electrode sheets are connected in series, and the small-sized electrode sheets and the large-sized electrode sheets are connected through microcurrent shunt lines.

[0011] In the aforementioned electrical stimulation device for oral muscle training, both the small-sized and large-sized electrode pads include an electrode base. A current-conducting copper sheet is disposed in the inner cavity of the electrode base, and the electrode base is connected to an insulating base through a flexible part. An electrode pad is embedded in the bottom of the insulating base, and the electrode pad is connected to the current-conducting copper sheet through a current-draining line. A wire hole is disposed around the insulating base, and a micro-current shunt line is disposed in the wire hole for connecting adjacent current-conducting copper sheets in series to form a series circuit.

[0012] In the above-mentioned electrical stimulation device for oral muscle training, the buccal muscle group electrical stimulation structure includes an annular rotating connecting seat disposed in an electrical stimulation assembly seat. The electrical stimulation assembly seat is provided with a positioning shaft for rotating and positioning the annular rotating connecting seat. At least one electrical stimulation extension seat is rotatably provided on the outer wall of the annular rotating connecting seat. The electrical stimulation extension seat and the annular rotating connecting seat are connected by a telescopic adjustment rod.

[0013] In the aforementioned electrical stimulation device for oral muscle training, a flexible stretching plate located on the upper and lower sides of the electrical stimulation extension seat is rotatably connected to the electrical stimulation extension seat via a rotation adjustment shaft. The flexible stretching plates are stacked and interlocked in a progressive manner with their width gradually decreasing. Several buccal muscle stimulation electrode pads are provided on the flexible stretching plates, and the diameter of the buccal muscle stimulation electrode pads gradually increases in the direction away from the rotation adjustment shaft.

[0014] In the aforementioned electrical stimulation device for oral muscle training, the upper and lower sides of the electrical stimulation extension seat are provided with storage compartments for flexible extension plates to be retracted, and the two electrical stimulation extension seats located on the same side of the electrical stimulation assembly seat are staggered vertically. There are at least two side storage cavities on the side wall of the electrical stimulation assembly seat, which are arranged in a bottom-up orientation.

[0015] In the aforementioned electrical stimulation device for oral muscle training, an electrical stimulation circuit channel is provided inside the electrical stimulation extension seat, and a circuit clearance channel communicating with the electrical stimulation circuit channel is provided inside the telescopic adjustment rod. The annular rotating connecting seat is provided with a circuit exit hole through which the electrical stimulation circuit can pass. The electrical stimulation circuit channel, the circuit clearance channel, and the circuit exit hole are sequentially connected and have electrical stimulation circuits that are respectively connected to the main circuit on the flexible extension plate and the current control module.

[0016] In the above-mentioned electrical stimulation device for oral muscle training, the end of the wire guide plate is provided with an annular relief groove for the annular rotating connecting seat to rotate, the assembly cavity is located on the upper and lower sides of the annular relief groove, and the suction channel is located on the lower side of the annular relief groove.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. Zonal Stimulation Design: Through symmetrical upper and lower tongue and palatine muscle electrical stimulation structures and left and right buccal muscle group electrical stimulation structures, precise electrical stimulation of multiple oral muscle groups, including the tongue, palate, and buccal muscles, can be performed simultaneously, achieving multi-angle, all-dimensional oral muscle training and improving rehabilitation efficiency. The tongue and palatine muscle electrical stimulation structure uses a combination of large-sized electrodes and surrounding smaller electrodes. The large-sized electrodes provide strong stimulation to the main muscle groups, while the smaller electrodes form an auxiliary stimulation network through a series circuit, covering a wider area and enhancing the comprehensiveness and layering of the stimulation. In the buccal muscle group electrical stimulation structure, the electrode diameters on the flexible stretching plate gradually increase to adapt to muscles of different depths and areas on the cheek, achieving gradient stimulation from superficial to deep layers for greater targeting.

[0019] 2. Independent circuit and micro-current shunt: Large and small electrode pads are connected to the current control module through independent circuits. The small electrode pads are connected in series and connected to the large electrode pads through a micro-current shunt circuit. The current intensity of different electrodes can be flexibly adjusted to meet personalized training needs, such as switching between strong and weak stimulation and local reinforcement, avoiding the limitations of single intensity stimulation.

[0020] 3. Multi-angle flexible adjustment: The tongue and palatal muscle electrical stimulation structure can adjust the stimulation angle and depth according to the oral anatomy by adjusting the rotation of the pivot and the extension and retraction of the extension part; the flexible bending part allows the electrode extension seat to adapt to the curvature of the oral cavity, improving fit and comfort, especially suitable for children or people with sensitive mouths; the buccal muscle electrical stimulation structure adopts a ring rotating connecting seat and a telescopic adjustment rod, which can be rotated and extended to adjust the position to adapt to different face shapes and differences in buccal muscle position; the flexible extension folding plate is stacked and interlocked with a gradually decreasing width, and can be folded or unfolded to fit the inner side of the cheek, further improving adaptability.

[0021] 4. Offset Layout and Storage Design: The electrical stimulation extension seat of the cheek muscle group electrical stimulation structure is set up with an offset design to avoid interference between the structures on both sides of the face, optimize space utilization, and, together with the storage compartment, allow the extension plate to be folded into the cavity. The overall size of the device is compact, easy to carry and store, and avoids wear or contamination of the exposed electrode pads.

[0022] In summary, this application achieves a balance of comprehensiveness, precision, comfort, and convenience in oral motor training through multi-muscle group zone stimulation, adjustable structure, user-friendly storage, safe and hygienic design, and compact circuit layout. It is particularly suitable for rehabilitation therapy, speech training, and other scenarios, providing personalized and efficient oral motor training solutions for different users. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a side view of the present invention;

[0025] Figure 3 This is a block diagram showing the overall structural connection of the present invention;

[0026] Figure 4 This is a cross-sectional view of the large-size or small-size electrode sheet in this invention;

[0027] Figure 5 This is a schematic diagram of the annular rotating connecting seat structure in this invention;

[0028] Figure 6 This is a cross-sectional view of the electrical stimulation extension seat in this invention;

[0029] Figure 7 This is a schematic diagram of the structure of the flexible extension plate after it has been extended in this invention;

[0030] Figure 8 This is a schematic diagram of the electrical stimulation fitting structure in this invention;

[0031] Figure 9 This is a schematic diagram of the end structure of the electrical stimulation fitting in this invention;

[0032] In the diagram: 1. Electrical stimulation mounting base; 11. Assembly cavity; 12. Current control module; 13. External power supply; 14. End face storage cavity; 15. Side storage cavity; 16. Wiring partition; 17. Suction channel; 18. Annular clearance groove; 2. Palatine muscle electrical stimulation structure; 21. Electrical stimulation rotating connection seat; 22. Adjustment shaft; 23. Pull-out telescopic part; 24. Electrical stimulation extension seat; 25. Flexible bending part; 26. Circuit wiring channel; 27. Large-size electrode pad; 28. Small-size electrode pad; 29. ​​Microcurrent shunt circuit. 9. Buccal muscle group electrical stimulation structure 3. Annular rotating connecting seat 31. Positioning shaft 32. Electrical stimulation extension seat 33. Rotation adjustment shaft 331. Flexible extension plate 332. Buccal muscle stimulation electrode 333. Storage compartment 334. Telescopic adjustment rod 34. Electrical stimulation circuit channel 35. Circuit clearance channel 36. Circuit exit hole 37. Electrical stimulation circuit 38. Electrode seat 4. Conducting copper sheet 41. Flexible part 42. Insulating seat 43. Electrode 44. Current drainage circuit 45. Wire hole 46. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1-9 As shown, an electrical stimulation device for oral muscle training includes an electrical stimulation mounting base 1 for insertion into the oral cavity. A current control module 12 is provided in the mounting cavity 11 at one end of the electrical stimulation mounting base 1. The current control module 12 is connected to an external power supply 13 through a power supply circuit. The upper and lower sides of the electrical stimulation mounting base 1 are provided with symmetrically arranged tongue and palatal muscle electrical stimulation structures 2, and the left and right sides of the electrical stimulation mounting base 1 are provided with buccal muscle group electrical stimulation structures 3.

[0035] The electrical stimulation fitting 1 in this device serves as the main structure and is inserted into the oral cavity for positioning. The fitting cavity at one end has a built-in current control module 12, which is powered by an external power supply 13 to control parameters such as the intensity and frequency of the output current.

[0036] The tongue and palatal muscle electrical stimulation structure 2 and the cheek muscle group electrical stimulation structure 3 correspond to different muscle groups in the oral cavity and on the cheek, respectively. They are connected to the current control module 12 through independent circuits to achieve targeted or comprehensive stimulation, improve the coverage of stimulation points, and can also perform single-point stimulation as needed.

[0037] The electrical stimulation assembly 1 has end face storage cavities 14 on the upper and lower sides for inserting the tongue and palatal muscle electrical stimulation structure 2, and side storage cavities 15 on the left and right sides for rotating and storing the cheek muscle group electrical stimulation structure 3. The electrical stimulation assembly 1 has a wire guide plate 16 in the middle that separates the two end face storage cavities 14, and a suction channel 17 is opened in the wire guide plate 16.

[0038] The end face of the tongue and palatine muscle electrode is separated by a partition and has a storage cavity. The internal suction channel can be connected to a negative pressure device to remove oral secretions in real time, keep the mouth clean, and avoid the risk of accidental aspiration during stimulation.

[0039] Obviously, the tongue and palatine muscle electrical stimulation structure 2 includes an electrical stimulation rotating connector 21, which is rotatably mounted in the end face receiving cavity 14 via an adjusting shaft 22. The end of the electrical stimulation connector away from the adjusting shaft 22 is connected to an electrical stimulation extension seat 24 via a pull-out extension part 23. A flexible bending part 25 is provided between the electrical stimulation extension seat 24, the electrical stimulation rotating connector 21 and the pull-out extension part 23. An electrical circuit passage 26 passes through the electrical stimulation extension seat 24, the electrical stimulation rotating seat, the pull-out extension part and the flexible bending part 25.

[0040] The electrical stimulation rotating connector 21 can rotate within the end face receiving cavity 14 by adjusting the rotating shaft 22. In conjunction with the pull-out telescopic part 23 and the flexible bending part 25, the electrode pads on the electrical stimulation extension seat 24 and the electrical stimulation rotating connector 21 can adapt to different users' oral cavity depths and tongue and palate muscle positions, ensuring that the electrode pads fit tightly, thereby improving the electrical stimulation effect.

[0041] Specifically, at least one large-sized electrode 27 is provided in the middle of both the electrical stimulation extension seat 24 and the electrical stimulation rotating connection seat 21. Several small-sized electrode 28 are distributed around the large-sized electrode 27. The small-sized electrode 28 and the large-sized electrode 27 are connected to the current control module 12 through independent circuits. The small-sized electrode 28 are connected in series, and the small-sized electrode 28 and the large-sized electrode 27 are connected through a micro-current shunt line 29.

[0042] Large-sized electrode pads 27 provide the main stimulation area, while small-sized electrode pads 28 are distributed and connected in series around them, thereby achieving local micro-stimulation and high-intensity stimulation of the main area to meet diverse electrical stimulation needs.

[0043] Secondly, the independent circuit design allows the large-size electrode pad 27 and the small-size electrode pad 28 to work separately or in combination, switching between high-intensity concentrated stimulation and low-intensity multi-point dispersed stimulation to adapt to different training needs.

[0044] Furthermore, both the small-sized electrode sheet 28 and the large-sized electrode sheet 27 include an electrode base 4. A current-conducting copper sheet 41 is disposed in the inner cavity of the electrode base 4, and the electrode base 4 is connected to an insulating base 43 through a flexible part 42. An electrode sheet 44 is embedded in the bottom of the insulating base 43, and the electrode sheet 44 is connected to the current-conducting copper sheet 41 through a current-guiding line 45. A wire hole 46 is disposed around the insulating base 43, and a micro-current shunt line 29 is disposed in the wire hole 46 for connecting adjacent current-conducting copper sheets 41 in series to form a series circuit.

[0045] The copper sheet 41 conducts current, the insulating base 43 isolates the conductive parts to ensure safety, and the flexible part 42 allows the electrode sheet 44 to deform slightly with muscle movement, enhancing the fit.

[0046] The microcurrent shunt circuit 29 inside the wire hole 46 connects adjacent small electrode pieces in series to form a unified current loop, ensuring uniform stimulation.

[0047] More specifically, the cheek muscle group electrical stimulation structure 3 includes an annular rotating connecting seat 31 disposed in the electrical stimulation assembly seat 1. The electrical stimulation assembly seat 1 is provided with a positioning shaft 32 for rotating and positioning the annular rotating connecting seat 31. At least one electrical stimulation extension seat 33 is rotatably provided on the outer wall of the annular rotating connecting seat 31. The electrical stimulation extension seat 33 and the annular rotating connecting seat 31 are connected by a telescopic adjustment rod 34.

[0048] The annular rotating connecting seat 31 is rotated and adjusted by the positioning shaft 32, which drives the electrical stimulation extension seat 33 located on the same side to adjust the gap and fit different areas on the inner and outer sides of the cheek. Secondly, the position of the electrical stimulation extension seat 33 can be changed by using the telescopic adjustment rod 34 to adapt to the position of the cheek muscle group.

[0049] Furthermore, the electrical stimulation extension base 33 is rotatably connected to the upper and lower sides of the electrical stimulation extension base 33 via the rotation adjustment shaft 331. The flexible extension plates 332 are stacked and interlocked in a progressive manner with their width gradually decreasing. The flexible extension plates 332 are provided with a number of cheek muscle stimulation electrode pads 333, and the diameter of the cheek muscle stimulation electrode pads 333 gradually increases in the direction away from the rotation adjustment shaft 331.

[0050] The flexible stretchable folding plate 332 is stacked and interlocked with decreasing width. When unfolded, it covers the cheek muscle in a fan shape. The diameter of the cheek muscle stimulation electrode 333 at its end gradually increases, which can provide differentiated stimulation for different parts of the cheek muscle (such as superficial and deep layers) (the large distal electrode has a wide stimulation range, while the small proximal electrode provides precise stimulation).

[0051] The rotating adjustment shaft 331 allows for fine-tuning of the angle of the flexible extension plate 33 to fit the curve of the cheek; the storage compartment 334 folds the electrode plates when not in use, reducing the size of the device.

[0052] In detail, the upper and lower sides of the electrical stimulation extension seat 33 are provided with storage compartments 334 for the flexible extension plate 332 to be stored, and the two electrical stimulation extension seats 33 located on the same side of the electrical stimulation assembly seat 1 are staggered vertically. There are at least two side storage cavities 15 on the side wall of the electrical stimulation assembly seat 1 and they are arranged in a bottom-up orientation.

[0053] Preferably, the electrical stimulation extension seat 33 is provided with an electrical stimulation circuit channel 35, and the telescopic adjustment rod 34 is provided with a circuit clearance channel 36 that is interconnected with the electrical stimulation circuit channel 35. The annular rotating connecting seat 31 is provided with a circuit exit hole 37 through which the electrical stimulation circuit 38 can pass. The electrical stimulation circuit 38, which is connected to the main circuit on the flexible extension plate 332 and the current control module 12, is sequentially passed through the electrical stimulation circuit channel 35, the circuit clearance channel 36, and the circuit exit hole 37.

[0054] In addition, the end of the wire guide plate 16 is provided with an annular clearance groove 18 for the annular rotating connecting seat 31 to rotate. The assembly cavity 11 is located on the upper and lower sides of the annular clearance groove 18, and the suction channel 17 is located on the lower side of the annular clearance groove 18.

[0055] The annular rotating connector of the buccinator muscle group electrical stimulation structure provides rotation space to ensure its flexible adjustment.

[0056] In summary, the principle of this embodiment is as follows: the tongue and palatine muscles are electrically stimulated by the tongue and palatine muscles respectively by the tongue and palatine muscles located on the upper and lower sides of the electrical stimulation assembly 1, and high-intensity concentrated stimulation or low-intensity multi-point dispersed stimulation is achieved by using large-size electrode pads 27 and small-size electrode pads 28; secondly, the cheek muscle group electrical stimulation structure 3 set on both sides of the electrical stimulation assembly 1 provides covering electrical stimulation to the muscles on both sides of the cheek, thereby achieving the purpose of multi-point synchronous stimulation; and this application adopts an independent circuit, micro-current shunt and zoned stimulation design, which can not only achieve single-point stimulation, but also effectively ensure the uniformity of current distribution between each electrode pad during electrical stimulation, improve the comfort of electrical stimulation, and have good use effect.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0058] Although this paper extensively uses the following components: electrical stimulation mounting base 1, mounting cavity 11, current control module 12, external power supply 13, end face storage cavity 14, side storage cavity 15, wire guide plate 16, suction channel 17, annular clearance groove 18, tongue and palatal muscle electrical stimulation structure 2, electrical stimulation rotating connection base 21, adjusting shaft 22, pull-out telescopic part 23, electrical stimulation extension base 24, flexible bending part 25, circuit wire guide channel 26, large-size electrode pad 27, small-size electrode pad 28, microcurrent shunt circuit 29, buccal muscle group electrical stimulation... The terms used include: stimulation structure 3, annular rotating connecting seat 31, positioning shaft 32, electrical stimulation extension seat 33, rotating adjustment shaft 331, flexible extension plate 332, buccinator muscle stimulation electrode 333, storage compartment 334, telescopic adjustment rod 34, electrical stimulation circuit channel 35, circuit clearance channel 36, circuit exit hole 37, electrical stimulation circuit 38, electrode seat 4, current guiding copper sheet 41, flexible part 42, insulating seat 43, electrode 44, current drainage circuit 45, and wire hole 46, etc., but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. An electrical stimulation device for oral muscle training, comprising an electrical stimulation fitting (1) for insertion into the oral cavity, wherein a current control module (12) is disposed in a fitting cavity (11) at one end of the electrical stimulation fitting (1), and the current control module (12) is connected to an external power supply (13) via a power supply circuit, characterized in that, The electrical stimulation assembly (1) has symmetrically arranged tongue and palatal muscle electrical stimulation structures (2) on its upper and lower sides, and buccal muscle group electrical stimulation structures (3) on its left and right sides.

2. The electrical stimulation device for oral motor training according to claim 1, characterized in that, The electrical stimulation assembly (1) has end face storage cavities (14) on the upper and lower sides for inserting the tongue and palatal muscle electrical stimulation structure (2). The electrical stimulation assembly (1) has side storage cavities (15) on the left and right sides for rotating and storing the buccal muscle group electrical stimulation structure (3). The electrical stimulation assembly (1) has a wire guide plate (16) in the middle to separate the two end face storage cavities (14). The wire guide plate (16) has a suction channel (17) inside.

3. The electrical stimulation device for oral motor training according to claim 2, characterized in that, The tongue and palatine muscle electrical stimulation structure (2) includes an electrical stimulation rotating connector (21), which is rotatably mounted in the end face receiving cavity (14) via an adjusting shaft (22). The end of the electrical stimulation connector away from the adjusting shaft (22) is connected to an electrical stimulation extension seat (24) via a pull-out extension part (23). A flexible bending part (25) is provided between the electrical stimulation extension seat (24), the electrical stimulation rotating connector (21), and the pull-out extension part (23). A circuit wire passage (26) passes through the electrical stimulation extension seat (24), the electrical stimulation rotating seat, the pull-out extension part, and the flexible bending part (25).

4. The electrical stimulation device for oral motor training according to claim 3, characterized in that, The electrical stimulation extension seat (24) and the electrical stimulation rotating connection seat (21) are each provided with at least one large-size electrode plate (27) in the middle. Several small-size electrode plates (28) are distributed around the large-size electrode plate (27). The small-size electrode plates (28) and the large-size electrode plate (27) are connected to the current control module (12) through independent circuits. The small-size electrode plates (28) are connected in series, and the small-size electrode plates (28) and the large-size electrode plate (27) are connected through a micro-current shunt line (29).

5. An electrical stimulation device for oral motor training according to claim 3, characterized in that, Both the small-sized electrode sheet (28) and the large-sized electrode sheet (27) include an electrode base (4). A current-conducting copper sheet (41) is provided in the inner cavity of the electrode base (4), and the electrode base (4) is connected to an insulating base (43) through a flexible part (42). An electrode sheet (44) is embedded at the bottom of the insulating base (43), and the electrode sheet (44) is connected to the current-conducting copper sheet (41) through a current-guiding line (45). The insulating base (43) is provided with a wire hole (46) in the circumference, and a micro-current shunt line (29) is provided in the wire hole (46) for connecting adjacent current-conducting copper sheets (41) in series to form a series circuit.

6. The electrical stimulation device for oral motor training according to claim 2, characterized in that, The cheek muscle group electrical stimulation structure (3) includes an annular rotating connecting seat (31) disposed in the electrical stimulation assembly seat (1). The electrical stimulation assembly seat (1) is provided with a positioning shaft (32) for rotating and positioning the annular rotating connecting seat (31). At least one electrical stimulation extension seat (33) is rotatably provided on the outer wall of the annular rotating connecting seat (31). The electrical stimulation extension seat (33) and the annular rotating connecting seat (31) are connected by a telescopic adjustment rod (34).

7. An electrical stimulation device for oral motor training according to claim 6, characterized in that, The electrical stimulation extension seat (33) is rotatably connected to flexible stretching plates (332) located on the upper and lower sides of the electrical stimulation extension seat (33) via a rotating adjustment shaft (331). The flexible stretching plates (332) are stacked and interlocked in a progressive manner with a gradually decreasing width. The flexible stretching plates (332) are provided with a number of cheek muscle stimulation electrode pads (333), and the diameter of the cheek muscle stimulation electrode pads (333) gradually increases in the direction away from the rotating adjustment shaft (331).

8. An electrical stimulation device for oral motor training according to claim 7, characterized in that, The electric stimulation extension seat (33) is provided with storage compartments (334) on the upper and lower sides for the flexible extension plate (332) to be stored. The two electric stimulation extension seats (33) located on the same side of the electric stimulation assembly seat (1) are staggered vertically. The side storage cavity (15) is at least two on the side wall of the electric stimulation assembly seat (1) and is arranged in a bottom-up manner.

9. An electrical stimulation device for oral motor training according to claim 8, characterized in that, The electric stimulation extension seat (33) is provided with an electric stimulation circuit channel (35), and the telescopic adjustment rod (34) is provided with a circuit clearance channel (36) that is connected to the electric stimulation circuit channel (35). The annular rotating connecting seat (31) is provided with a circuit exit hole (37) through which the electric stimulation circuit (38) can pass. The electric stimulation circuit (35), the circuit clearance channel (36), and the circuit exit hole (37) are sequentially connected and provided with electric stimulation circuits (38) that are connected to the main circuit on the flexible extension plate (332) and the current control module (12).

10. An electrical stimulation device for oral motor training according to claim 8, characterized in that, The end of the wire guide plate (16) is provided with an annular relief groove (18) for the annular rotating connecting seat (31) to rotate. The assembly cavity (11) is located on the upper and lower sides of the annular relief groove (18), and the suction channel (17) is located on the lower side of the annular relief groove (18).

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