A vagus nerve auricular branch stimulation device

Abstract

The present invention provides a auricular vagus nerve stimulation device, comprising: a headband; a cover body is provided at each end of the headband, and first sliding grooves are formed on both sides of each cover body; both ends of a positioning rod pass through the first sliding grooves on both sides and can slide up and down, and a positioning sleeve is slidably sleeved on the positioning rod; a stimulation mechanism is installed on the positioning sleeve; and a locking mechanism, which can simultaneously release or activate the movement restriction on the positioning sleeve and the positioning rod, so that the stimulation mechanism can adjust its position or remain unchanged at the current position. By using the locking mechanism, the present invention can quickly and simultaneously limit the movement of the positioning sleeve and the positioning rod, preventing the stimulation head from shifting; and by using the transmission of a toothed ring and a rack between the locking mechanism and the stimulation mechanism, the stimulation head can be further pressed against the concha area to prevent loosening during the treatment process; the positioning and fixing of the positioning sleeve and the positioning rod and the further pressing of the stimulation head are carried out simultaneously, and only by rotating the control column can it be achieved in one step, with simple and fast operation.

Description

Technical Field

[0001] The present invention relates to the field of nerve stimulation devices, and particularly to an auricular vagus nerve stimulation device. Background Art

[0002] Hypertension, diabetes, epilepsy, etc. are common diseases caused by neuroendocrine dysfunction, with a high incidence rate and requiring lifelong treatment. Traditional treatments include drug methods and surgical ablation methods. However, long-term use of drugs has many side effects and is difficult to avoid. Due to the complexity of the brain and nerves and the limitations of human understanding of them, irreversible surgical ablation has unpredictable malignant consequences. Therefore, nerve electrical stimulation therapy has emerged. Stimulating the auricular points on the human ear can also treat hypertension and diabetes, which is closely related to the presence of the vagus nerve in the concha area. The auricular branch of the vagus nerve that innervates the concha area is the only branch of the vagus nerve distributed in the surrounding skin. If the auricular vagus nerve in this area is stimulated, the same effect as subcutaneous implantable nerve electrical stimulation therapy can be achieved.

[0003] Currently, conventional auricular vagus nerve stimulation devices usually adopt an ear-hanging headphone style, which is hung on the patient's ear, and the stimulation head is aligned with the patient's concha area for stimulation to achieve the treatment purpose. However, due to the inconsistent ear sizes and shapes of different patients, it is difficult for conventional auricular vagus nerve stimulation devices to accurately adjust the position of the stimulation head for different patients' concha areas, resulting in poor treatment effects and poor comfort for patients during wearing. Moreover, the stimulation head of the conventional auricular vagus nerve stimulation device is difficult to be effectively fixed after being aligned with the patient's concha area. Usually, it is directly attached to the concha area, and it is easy to become loose during the treatment process, thereby resulting in poor treatment effects. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention proposes an auricular vagus nerve stimulation device to solve the problems that it is difficult for conventional auricular vagus nerve stimulation devices to accurately adjust the position of the stimulation head for different patients' concha areas and it is difficult to be effectively fixed, resulting in poor comfort for patients during wearing and the stimulation head is easy to become loose during the treatment process, thereby resulting in poor treatment effects.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] An auricular vagus nerve stimulation device provided by the present invention includes:

[0007] A headband, which is integrally U-shaped and conforms to the curve of the human head;

[0008] Housing bodies, each of which is provided at both ends of the headband. An ear inlet is provided on the side of each of the two housing bodies close to each other, and a viewing port is provided on the side far from each other. A first chute extending longitudinally is provided on both sides of each housing body;

[0009] Positioning rods, one is installed in each of the said covers. The two ends of the positioning rod respectively pass through the first chutes on both sides and can slide up and down. A positioning sleeve is slidably sleeved on the positioning rod;

[0010] Stimulation mechanism, installed on the positioning sleeve, for stimulating the concha area of the patient's ear; and

[0011] Locking mechanism, which can simultaneously release or activate the movement restriction on the positioning sleeve and the positioning rod, so that the stimulation mechanism can adjust its position or remain unchanged at the current position.

[0012] Furthermore, a control groove extending along its length direction is formed at the top of the positioning rod. The locking mechanism includes a control column, a control wire and a tightening component. A stud is provided at the bottom end of the control column. The stud is threadedly screwed through the top of the positioning sleeve and the bottom end of the stud is located in the control groove. The two control wires are respectively connected to both sides of the bottom end of the stud. The two tightening components are respectively installed at the positions of the control groove where it is located at the first chute and are respectively connected to the two control wires. Rotating the control column can make the bottom end of the stud abut against the bottom of the control groove, and can simultaneously drive the tightening component to abut against the inner wall of the first chute by pulling the control wire.

[0013] Furthermore, the tightening component includes a resisting block, a clamping block and a first elastic member. The two resisting blocks respectively slidably penetrate through the two side walls of the control groove at the position of the first chute. The clamping block is slidably installed in the control groove and is located on the side of the corresponding resisting block away from the control column. The side of the clamping block facing the resisting block is conical and the conical end is connected to the control wire. The first elastic member connects the clamping block with the inner wall of the control groove to provide an elastic force to move the clamping block away from the resisting block.

[0014] Furthermore, an anti-slip layer is provided on the inner wall of the first chute, and an anti-slip pad is provided on the side of the resisting block close to the inner wall of the first chute.

[0015] Furthermore, a second chute is formed at the top of the cover. A moving block is slidably arranged in the second chute. The top end of the control column slidably penetrates upward through the moving block.

[0016] Furthermore, the two ends of the positioning rod respectively pass out of the first chute and are provided with first operation parts, and the top end of the control column is provided with a second operation part.

[0017] Further, a toothed ring is circumferentially arranged on the control column. The stimulation mechanism includes a sliding seat, a rack, and a stimulation cylinder. The sliding seat is installed on the top of the positioning sleeve. The rack is slidably installed on the sliding seat in a direction close to or away from the ear inlet and is in transmission connection with the toothed ring. When the control column is rotated so that the bottom end of the stud abuts against the bottom of the control groove, the rack will slide in the direction close to the ear inlet. The stimulation cylinder is threadedly connected through both ends of the rack in a direction close to or away from the ear inlet.

[0018] Further, the stimulation cylinder includes a threaded tube, a wire tube, and a second elastic member. The outer side of the threaded tube has threads and is screwed with the rack. The wire tube is slidably installed in the threaded tube. One end of the wire tube close to the ear inlet passes through the threaded tube and is provided with a stimulation head. The other end of the wire tube passes through the threaded tube and is externally connected to a controller. The second elastic member connects the stimulation head and the threaded tube to provide an elastic force for pushing the stimulation head in the direction close to the ear inlet.

[0019] Further, a soft cushion ring is arranged on the edge of each ear inlet.

[0020] As can be seen from the above technical solutions, an auricular vagus nerve stimulation device provided by the present invention uses a headband and a cover body to wear and fix the device on the patient's head and accommodate the patient's entire ear within the adjustment range of the cover body. It is not only comfortable to wear but also can adapt to the ears of different patients for wrapping, so as to align the stimulation head with the concha area of the patient's ear subsequently; by using the positioning rod and the positioning sleeve, the position of the stimulation cylinder can be adjusted within the area range of the cover body, so that the stimulation head can be accurately aligned with the concha area of the ear; by using the locking mechanism, the movement of the positioning sleeve and the positioning rod can be restricted quickly and simultaneously to prevent the stimulation head from shifting; and the transmission between the locking mechanism and the stimulation mechanism using the toothed ring and the rack can further press the stimulation head against the concha area to prevent loosening during the treatment process; the positioning and fixing of the positioning sleeve and the positioning rod and the further pressing of the stimulation head are carried out simultaneously, and only by rotating the control column can it be done in one step, with simple and quick operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention, the drawings required for use in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0022] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of an auricular vagus nerve stimulation device of the present invention;

[0023] Figure 2 is a cross-sectional view of a schematic side view structure diagram of an embodiment of an auricular vagus nerve stimulation device of the present invention;

[0024] Figure 3 isFigure 2 Partial enlarged view at A in the figure;

[0025] Figure 4 It is a cross-sectional view of a top view structure diagram of a pressing component in an embodiment of a auricular vagus nerve stimulation device of the present invention;

[0026] Figure 5 It is a cross-sectional view of a front view structure diagram of a cover body in an embodiment of a auricular vagus nerve stimulation device of the present invention;

[0027] Reference numerals:

[0028] Headband 1;

[0029] Cover body 2, ear inlet 21, soft cushion ring 211, viewing port 22, first sliding groove 23, second sliding groove 24, moving block 241;

[0030] Positioning rod 3, positioning sleeve 31, control groove 32, first operation part 33;

[0031] Stimulation mechanism 4, sliding seat 41, rack 42, stimulation cylinder 43, threaded tube 431, wire tube 432, second elastic member 433, stimulation head 434;

[0032] Locking mechanism 5, control column 51, stud 511, second operation part 512, toothed ring 513, control wire 52, pressing component 53, pressing block 531, clamping block 532, first elastic member 533, anti-slip pad 534. Detailed implementation manners

[0033] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0034] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention.

[0036] As Figures 1-5 shown, a vagus nerve auricular branch stimulation device provided in this embodiment includes a headband 1, a cover body 2, a positioning rod 3, a stimulation mechanism 4, and a locking mechanism 5.

[0037] Please refer to Figure 1 , the headband 1 is integrally U-shaped to fit the curve of the human head and is used to be worn on the patient's head. The headband 1 is made of elastic metal or plastic material to achieve the purpose of clamping and fixing on the patient's head. Preferably, the headband 1 can be selected as a telescopic structure to adapt to different head sizes. The headband 1 can also be selected as the headband sold on the current market, which has a good fixing effect.

[0038] Please refer to Figure 1 , Figure 2 and Figure 5 , a cover body 2 is provided at each end of the headband 1 and is used to cover the patient's ears. An ear inlet 21 is opened on one side of each of the two cover bodies 2 close to each other, and the patient's ear enters the cover body 2 through the ear inlet 21. Preferably, a soft cushion ring 211 is provided at the edge of each ear inlet 21, which is beneficial to improving the wearing comfort of the patient. A viewing port 22 is opened on one side of each of the two cover bodies 2 away from each other and is used to observe the position of the stimulation mechanism 4. A first chute 23 extending longitudinally is opened on both sides of each cover body 2.

[0039] Please refer to Figures 1-5 , a positioning rod 3 is installed in each cover body 2. Both ends of the positioning rod 3 pass through the first chutes 23 on both sides and can slide up and down. A positioning sleeve 31 is slidably sleeved on the positioning rod 3. By sliding the positioning rod 3 up and down and sliding the positioning sleeve 31 on the positioning rod 3, it is beneficial to move the positioning sleeve 31 to the corresponding position of the concha area of the patient's ear. Further, a control groove 32 extending along its length direction is opened at the top of the positioning rod 3.

[0040] Please refer to Figures 1-3 and Figure 5 , the stimulation mechanism 4 is installed on the positioning sleeve 31 and is used to stimulate the concha area of the patient's ear.

[0041] Please refer to Figures 1-5 , the locking mechanism 5 can simultaneously release or activate the movement restriction on the positioning sleeve 31 and the positioning rod 3, so that the stimulation mechanism 4 can adjust its position or remain unchanged at the current position.

[0042] Specifically, the locking mechanism 5 includes a control column 51, a control wire 52, and a pressing component 53. A toothed ring 513 is circumferentially arranged on the control column 51. A stud 511 is arranged at the bottom end of the control column 51. The stud 511 is threadedly connected and penetrates through the top of the positioning sleeve 31, and the bottom end of the stud 511 is located in the control groove 32. Rotating the control column 51 can make the bottom end of the stud 511 approach or move away from the bottom of the control groove 32. Preferably, an anti-slip rubber is arranged at the bottom end of the stud 511 to increase the friction when pressing against the bottom of the control groove 32. Two control wires 52 are respectively connected to both sides of the bottom end of the stud 511. Two pressing components 53 are respectively installed at the positions of the control groove 32 located in the first sliding groove 23 and are respectively connected to the two control wires 52. Rotating the control column 51 can make the bottom end of the stud 511 press against the bottom of the control groove 32, and can simultaneously drive the pressing component 53 to press against the inner wall of the first sliding groove 23 by pulling and winding the control wire 52.

[0043] As Figure 4 shown, in an embodiment, the pressing component 53 includes a pressing block 531, a clamping block 532, and a first elastic member 533. Two pressing blocks 531 respectively penetrate through the two side walls of the control groove 32 located at the position of the first sliding groove 23 slidably. Preferably, the sides of the two pressing blocks 531 close to each other are arc surfaces so that the clamping block 532 can be clamped between them. The clamping block 532 is slidably installed in the control groove 32 and is located on the side of the corresponding pressing block 531 away from the control column 51. The side of the clamping block 532 facing the pressing block 531 is conical and the conical end is connected to the control wire 52. In specific use, the control wire 52 will drive the clamping block 532 to move towards the gap between the two pressing blocks 531 as the stud 511 is pulled and wound, and then push open the two pressing blocks 531, so that the two pressing blocks 531 slide and press against the side wall of the first sliding groove 23, realizing the position fixation of the positioning rod 3. The first elastic member 533 connects the clamping block 532 to the inner wall of the control groove 32 to provide an elastic force to move the clamping block 532 away from the pressing block 531, so that the clamping block 532 can move away from the pressing block 531 when not subjected to the pulling force of the control wire 52, preventing interference with the movement of the positioning rod 3. Specifically, the first elastic member 533 can be a spring.

[0044] It should be noted that in the initial state, the stud 511 does not contact the bottom of the control groove 32, and the control wire 52 is in a relaxed state at this time, without generating a pulling force on the latch 532, enabling the latch 532 to move away from the abutting block 531 under the elastic force of the first elastic member 533. In this state, the positions of the positioning rod 3 and the positioning sleeve 31 can be moved. To prevent the control wire 52 from excessively pulling the latch 532 when the positioning sleeve 31 moves, preferably, the length of the control wire 52 should be slightly greater than the distance between the stud 511 and the two latches 532 when the stud 511 is at the middle of the control groove 32. Of course, since the ear structures of humans are similar, although there will be a slight deviation in the position of the concha area of the ears of different patients, in fact, the deviation will not be too large. Therefore, in actual use, the moving ranges of the positioning rod 3 and the positioning sleeve 31 are small. Leaving a slightly longer margin for the control wire 52 can prevent the latch 532 from being pulled when the positioning sleeve 31 moves, and at the same time ensure that when the bottom end of the stud 511 abuts against the bottom of the control groove 32, the latch 532 can be pulled to squeeze open the two abutting blocks 531.

[0045] Preferably, in an embodiment, an anti-slip layer is provided on the inner wall of the first chute 23, and an anti-slip pad 534 is provided on one side of the abutting block 531 close to the inner wall of the first chute 23. Both the anti-slip layer and the anti-slip pad 534 are made of anti-slip rubber material, which is beneficial to increasing the friction force when the abutting block 531 abuts tightly against the inner wall of the first chute 23.

[0046] To facilitate the movement of the positioning sleeve 31, preferably, a second chute 24 is opened at the top of the cover body 2, and a moving block 241 is slidably provided in the second chute 24. The top end of the control column 51 slidably penetrates upward through the moving block 241. Further, both ends of the positioning rod 3 respectively penetrate out of the first chute 23 and are provided with first operating portions 33, and the top end of the control column 51 is provided with a second operating portion 512. Anti-slip rubber layers are provided on the outer sides of the first operating portion 33 and the second operating portion 512 to facilitate the movement of the positioning rod 3 and the positioning sleeve 31.

[0047] Please refer to Figures 1-3 and Figure 5, specifically, the stimulating mechanism 4 includes a sliding seat 41, a rack 42 and a stimulating cylinder 43. The sliding seat 41 is installed on the top of the positioning sleeve 31. The rack 42 is slidably installed on the sliding seat 41 along the direction close to or away from the ear inlet 21 and is in transmission connection with the toothed ring 513. When the rotating control column 51 makes the bottom end of the stud 511 abut against the bottom of the control groove 32, the rack 42 will slide in the direction close to the ear inlet 21. The stimulating cylinder 43 is threadedly connected through both ends of the rack 42 along the direction close to or away from the ear inlet 21. During specific use, after aligning the stimulating cylinder 43 with the concha area of the ear by adjusting the positions of the positioning rod 3 and the positioning sleeve 31, the stimulating cylinder 43 can be abutted against the patient's ear by rotating the stimulating cylinder 43. When rotating the control column 31 to lock the current positions of the positioning rod 3 and the positioning sleeve 31, through the transmission between the toothed ring 513 and the rack 42, the end of the stimulating cylinder 43 can be further abutted tightly against the concha area to prevent loosening.

[0048] To avoid the stimulating cylinder 43 from excessively squeezing the concha area of the patient's ear and to ensure that the stimulating cylinder 43 can be fully abutted against this area without loosening, therefore, as Figure 5 shown, further, the stimulating cylinder 43 includes a threaded tube 431, a wire tube 432 and a second elastic member 433. The outer side of the threaded tube 431 has threads and is threadedly connected with the rack 42. The wire tube 432 is slidably installed in the threaded tube 431. One end of the wire tube 432 close to the ear inlet 21 passes through the threaded tube 431 and is provided with a stimulating head 434. The other end of the wire tube 432 passes through the threaded tube 431 and is externally connected to a controller. The second elastic member 433 connects the stimulating head 434 and the threaded tube 431 to provide an elastic force for pushing the stimulating head 434 in the direction close to the ear inlet 21. Among them, the second elastic member 433 can be selected as a spring. When the threaded tube 431 further abuts against the concha area of the ear along with the rack 42, the second elastic member 433 can provide a buffer margin for the wire tube 432 and the stimulating head 434 to prevent the stimulating head 434 from excessively squeezing the concha area and causing discomfort to the patient.

[0049] An auricular vagus nerve stimulation device provided by the present invention, when in specific use, the patient wears the device on the head and covers both ears with two covers 2 to fix the two covers 2 on the ears; adjust the positions of the positioning rod 3 and the positioning sleeve 31 to align the stimulation head 434 with the concha area; rotate the threaded tube 431 to make the whole stimulation cylinder 43 abut against the concha area; rotate the control column 51 to make the bottom end of the stud 511 abut tightly against the bottom of the control groove 32, so as to fix the position of the positioning sleeve 31; while the stud 511 rotates, it will pull and wind the control wire 52 to drive the block 532 to move towards the gap between the two abutting blocks 531, and then squeeze open the two abutting blocks 531, so that the two abutting blocks 531 slide and abut tightly against the side wall of the first chute 23 to fix the position of the positioning rod 3; the rotation of the control column 51 will also drive the rack 42 to move towards the concha area through the toothed ring 513 at the same time, so that the stimulation cylinder 43 further abuts tightly against the concha area to prevent loosening.

[0050] The present invention uses the headband 1 and the cover 2 to wear and fix the device on the patient's head, and accommodate the patient's ears as a whole within the adjustment range of the cover 2. It is not only comfortable to wear, but also can adapt to the ears of different patients for wrapping, so as to align the stimulation head 434 with the concha area of the patient's ear subsequently; by using the positioning rod 3 and the positioning sleeve 31, the position of the stimulation cylinder 43 can be adjusted within the area range of the cover 2, so that the stimulation head 434 can be accurately aligned with the concha area of the ear; by using the locking mechanism 5, the movement of the positioning sleeve 31 and the positioning rod 3 can be restricted quickly and simultaneously to prevent the stimulation head 434 from shifting; and through the transmission of the toothed ring 513 and the rack 42 between the locking mechanism 5 and the stimulation mechanism 4, the stimulation head 434 can be further abutted tightly against the concha area to prevent loosening during the treatment process; the positioning and fixing of the positioning sleeve 31 and the positioning rod 3 and the further abutting of the stimulation head 434 are carried out simultaneously, and only by rotating the control column 51 can it be done in one step, with simple and fast operation.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. An auricular vagus nerve stimulation device, characterized in that, Including: A headband, which is integrally U-shaped and conforms to the curve of the human head; Housing bodies, one is provided at each end of the headband. On the side where the two housing bodies are close to each other, an ear inlet is provided, and on the side where they are far from each other, a viewing port is provided. On both sides of each housing body, a first sliding groove extending longitudinally is provided; Positioning rods, one is installed in each housing body. The two ends of the positioning rod respectively pass through the first sliding grooves on both sides and can slide up and down. A positioning sleeve is slidably sleeved on the positioning rod; Stimulation mechanism, installed on the positioning sleeve, for stimulating the concha area of the patient's ear; And Locking mechanism, which can simultaneously release or start the movement restriction on the positioning sleeve and the positioning rod, so that the stimulation mechanism can adjust its position or remain unchanged at the current position; A control groove extending along the length direction is provided at the top of the positioning rod. The locking mechanism includes a control column, a control wire and a pressing component. A stud is provided at the bottom end of the control column. The stud is threadedly screwed through the top of the positioning sleeve and the bottom end of the stud is located in the control groove. The two control wires are respectively connected to both sides of the bottom end of the stud. The two pressing components are respectively installed at the positions where the control groove is located at the first sliding groove and are respectively connected to the two control wires. Rotating the control column can make the bottom end of the stud abut against the bottom of the control groove, and can simultaneously drive the pressing component to abut against the inner wall of the first sliding groove by pulling the control wire; The pressing component includes a pressing block, a clamping block and a first elastic member. The two pressing blocks respectively slidably penetrate through the two side walls of the control groove at the position of the first sliding groove. The clamping block is slidably installed in the control groove and is located on the side of the corresponding pressing block away from the control column. The side of the clamping block facing the pressing block is conical and the conical end is connected to the control wire. The first elastic member connects the clamping block with the inner wall of the control groove to provide an elastic force to move the clamping block away from the pressing block; 2. The auricular vagus nerve stimulation device according to claim 1, wherein The inner wall of the first sliding groove is provided with an anti-slip layer, and the side of the pressing block close to the inner wall of the first sliding groove is provided with an anti-slip pad; 3. The auricular vagus nerve stimulation device according to claim 1, wherein A second sliding groove is provided at the top of the housing body. A moving block is slidably arranged in the second sliding groove. The top end of the control column slidably penetrates through the moving block upward; 4. The auricular vagus nerve stimulation device according to claim 3, wherein The two ends of the positioning rod respectively pass through the first sliding groove and are provided with a first operation part, and the top end of the control column is provided with a second operation part; 5. The auricular vagus nerve stimulation device according to claim 1, wherein A toothed ring is circumferentially arranged on the control column. The stimulation mechanism includes a sliding seat, a rack and a stimulation cylinder body. The sliding seat is installed on the top of the positioning sleeve. The rack is slidably installed on the sliding seat along the direction close to or away from the ear inlet and is in transmission connection with the toothed ring. When rotating the control column to make the bottom end of the stud abut against the bottom of the control groove, the rack will slide in the direction close to the ear inlet. The stimulation cylinder body is threadedly screwed through the two ends of the rack along the direction close to or away from the ear inlet.

6. The auricular vagus nerve stimulation device according to claim 5, wherein The stimulation cylinder includes a threaded tube, a wire tube, and a second elastic member. The outer side of the threaded tube has threads and is screwed to the rack. The wire tube is slidably installed in the threaded tube. One end of the wire tube close to the ear inlet passes through the threaded tube and is provided with a stimulation head. The other end of the wire tube passes through the threaded tube and is externally connected to a controller. The second elastic member connects the stimulation head to the threaded tube to provide an elastic force for pushing the stimulation head towards the ear inlet.

7. The auricular vagus nerve stimulation device according to claim 1, wherein A soft cushion ring is provided at the edge of each ear inlet.

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