Transcutaneous auricular vagus nerve stimulation device with skin resistance monitoring

Abstract

The present application belongs to the technical field of ear vagus nerve stimulation, and particularly relates to a transcutaneous ear vagus nerve stimulation device with skin resistance monitoring, which comprises multiple expansion air bags and multiple telescopic seats. The outermost two expansion air bags are connected with fixing clamps. Through the alternating adhesion of the multiple expansion air bags and telescopic seats, an arc-shaped wearing seat is formed. The expansion air bags and telescopic seats are connected with a communication pipe and a suction pump to realize active contraction. During the air suction process, the expansion air bags shrink inward to drive the telescopic seats to approach each other, so that the overall length of the wearing seat is shortened and the bending curvature is reduced. The wearing seat can automatically adapt to the ear contour of different sizes. The expansion air bags are large inside and small outside, and the telescopic seats are small inside and large outside. The contraction amplitude of the inner side of the arc is enhanced, the wearing range is improved, the wearing seat can be tightly clamped on the surface of the auricle, and the wearing stability and comfort are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of auricular vagus nerve stimulation, specifically relating to a transcutaneous auricular vagus nerve stimulation device with skin resistance monitoring. Background Technology

[0002] Currently, percutaneous vagus nerve stimulation (PVS) is a non-invasive neuromodulation technique that has been used clinically as an adjunct treatment for diseases such as epilepsy, depression, and migraines. However, existing stimulation devices generally suffer from insufficient adaptability. Traditional devices often use fixed-size ear clips or earmuffs, which are difficult to adapt to individual differences in the shape of different patients' auricles, leading to loosening or pressure discomfort during wear.

[0003] To address the aforementioned issues, this patent proposes a transcutaneous vagus nerve stimulation device capable of adaptive fitting of the auricle and equipped with skin resistance monitoring, thereby resolving the technical problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide a transcutaneous vagus nerve stimulation device with skin resistance monitoring, in order to solve the problem that traditional transcutaneous vagus nerve stimulation devices mentioned in the background art mostly use fixed-size ear clips or earmuffs, which are difficult to adapt to individual differences in the shape of different patients' auricles, resulting in problems such as loosening or pressure discomfort when wearing them.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a transcutaneous vagus nerve stimulation device with skin resistance monitoring, comprising multiple retractable airbags and multiple telescopic seats. The multiple telescopic seats are located between the multiple retractable airbags and are alternately attached together in an arc shape. The outermost two retractable airbags are each connected to a fixing clip. A connecting tube penetrating inside the telescopic seat connects two adjacent retractable airbags. Traction sleeves are provided on the outer sides of both ends of the arc of the multiple telescopic seats, and the multiple traction sleeves are all connected to a limiter in the radial direction of the arc of the telescopic seats. The frame includes multiple limiting frames, each with a telescopic frame inserted inside at one radial end of the arc where the telescopic seat is located. Stimulating electrodes are also installed inside the ends of the telescopic frames furthest from the limiting frames. The retractable airbags are arranged in a trapezoidal shape, wider on the inside and narrower on the outside, along the radial direction of the arc. One of the outermost retractable airbags is connected to a flexible tube communicating with the outside. The telescopic seat is also arranged in a trapezoidal shape, narrower on the inside and wider on the outside, along the radial direction of the arc. A clamping assembly is provided between the traction sleeve and the connecting tube, and this clamping assembly can pull the stimulating electrodes located on both sides of the telescopic seat towards the cassette groove side via the limiting frames and the telescopic frames.

[0006] Preferably, the clamping assembly includes a cylindrical airbag, and the connecting tube is connected in the middle to a cylindrical airbag located inside the telescopic seat, and the cylindrical outer wall of the cylindrical airbag is provided with multiple support rings.

[0007] Preferably, two support plates are symmetrically arranged at the two axial inner ends of the cylindrical airbag, and a support spring is arranged between the two support plates. An elastic rubber rod is connected between the two axial outer ends of the cylindrical airbag and the two traction sleeves.

[0008] Preferably, an installation assembly is provided between the telescopic seat and the end of the limiting frame on both sides away from the stimulation electrode. The installation assembly includes an inner limiting seat, and the inner limiting seat is connected to the center of the arc-shaped outer end of the telescopic seat. A magnetic ring located inside the telescopic seat is provided on the outside of the inner limiting seat.

[0009] Preferably, the inner limiting seat is provided with a mounting seat at the end away from the telescopic seat, and the mounting seat is connected to an outer limiting seat sleeved on the outside of the inner limiting seat at the end near the telescopic seat. The mounting seat is connected to a connecting frame at both axial ends of the arc where the telescopic seat is located.

[0010] Preferably, the end of the limiting frame away from the stimulation electrode is snapped into the inside of the connecting frame and slidably connected to the connecting frame, and the end of the mounting base away from the telescopic base has a frame groove, and a limiting frame is snapped into the frame groove.

[0011] Preferably, the limiting card frame is connected to a magnetic frame sleeved on the outside of the outer limiting seat at one end near the telescopic seat, and an iron ring that fits against the magnetic ring is provided inside the magnetic frame.

[0012] Preferably, a locking assembly is provided between the inner limiting seat and the mounting seat. The locking assembly includes a telescopic hole, and the inner limiting seat has telescopic holes at both tangential ends of the arc where the telescopic seat is located.

[0013] Preferably, a locking pin extends through the telescopic hole and into the inner limit seat, and one end of the locking pin protruding into the inner limit seat is hemispherical. A spring baffle is slidably connected to the outside of the locking pin inside the telescopic hole.

[0014] Preferably, the spring baffle is provided with an unlocking spring located inside the telescopic hole at the hemispherical end away from the locking pin, and a locking plug connected to the center of the limiting frame near the telescopic seat is inserted inside the inner limiting seat, and the locking plug passes through the mounting seat and extends between the two locking pins.

[0015] Compared with the prior art, the present invention provides a transcutaneous vagus nerve stimulation device with skin resistance monitoring, which has the following beneficial effects:

[0016] 1. This invention forms an arc-shaped wearable seat by alternately bonding multiple retractable airbags and telescopic seats. With the help of a connecting tube and a suction pump, active contraction is achieved. During the air extraction process, the retractable airbags contract inward, causing the telescopic seats to move closer to each other, which shortens the overall length of the wearable seat and reduces the curvature. It automatically adapts to the contours of different sized auricles. Moreover, the retractable airbags are larger inside and smaller outside, and the telescopic seats are smaller inside and larger outside, which enhances the contraction range of the inner side of the arc, improves the wearing adaptation range, and ensures that the wearable seat can be tightly attached to the surface of the auricle, thereby improving wearing stability and comfort.

[0017] 2. The stimulation electrode of this invention is connected to the telescopic seat through a traction sleeve, a limiting frame, and a telescopic frame. While the retractable airbag is being deflated, the cylindrical airbag is also being deflated, causing the cylindrical airbag to contract in a specific direction. The directionally contracting cylindrical airbag, through the rubber rod, traction sleeve, limiting frame, and telescopic frame, pulls the stimulation electrode closer to the auricle and ensures good contact between the stimulation electrode and the skin. At the same time, the wearing seat is supported from the side to ensure stable wearing.

[0018] 3. The stimulation electrode of this invention is connected to the telescopic seat through a traction sleeve, a limiting clip, and a telescopic frame. It can adjust the position of the wearable seat on the auricle by changing the clamping position of the fixed clip and installing it on both sides of different telescopic seats. It can also adjust and limit the distance between the telescopic electrode and the telescopic seat by the telescopic frame extending and contracting inside the limiting frame and the friction of the rubber damping pad, thereby achieving precise contact between the stimulation electrode and the vagus nerve stimulation point.

[0019] 4. This invention initially limits the mounting base by adsorption between the magnetic ring and the magnetic frame. After the locking plug is inserted into the inner limiting base, the hemispherical locking pin is pushed open, allowing the locking pin to engage with the locking hole of the outer limiting base, thus locking the inner and outer limiting bases and locking the position of the mounting base. When disassembling, lifting the limiting frame releases the magnetic attraction between it and the magnetic ring, simultaneously releasing the locking between the inner and outer limiting bases and removing the limitation on the mounting base, making it easier to flexibly change and install the position of the stimulation electrode. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the auricular vagus nerve stimulation device of the present invention.

[0021] Figure 2 This is a schematic cross-sectional view of the auricular vagus nerve stimulation device of the present invention.

[0022] Figure 3 This is a three-dimensional cross-sectional view of the auricular vagus nerve stimulation device of the present invention.

[0023] Figure 4 This is a schematic diagram of the cylindrical airbag connection structure of the present invention.

[0024] Figure 5This is a schematic diagram of the installation component structure of the present invention.

[0025] Figure 6 For the present invention Figure 2 Enlarged diagram of point A in the middle.

[0026] Figure 7 For the present invention Figure 3 Enlarged diagram of point B in the middle.

[0027] Figure 8 This is a schematic diagram of the limiting frame connection structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the mounting base connection structure of the present invention.

[0029] Figure 10 This is a schematic diagram of the controller connection structure of the present invention.

[0030] In the diagram: 1. Deployable airbag; 2. Telescopic seat; 3. Fixing clamp; 4. Traction sleeve; 5. Limiting frame; 6. Telescopic frame; 7. Stimulating electrode; 8. Ear slot; 9. Connecting tube; 10. Cylindrical airbag; 11. Support ring; 12. Support plate; 13. Support spring; 14. Rubber rod; 15. Inner limiting seat; 16. Magnetic ring; 17. Telescopic hole; 18. Locking pin; 19. Spring baffle; 20. Unlocking spring; 21. Mounting base; 22. Outer limiting seat; 23. Connecting frame; 24. Frame slide groove; 25. Limiting frame; 26. Magnetic frame; 27. Locking plug; 28. Rubber damping pad; 29. ​​Controller. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This invention provides, for example Figures 1-10The percutaneous vagus nerve stimulation device with skin resistance monitoring shown includes multiple retractable airbags 1 and multiple telescopic seats 2. The telescopic seats 2 are located between the multiple retractable airbags 1 and are alternately attached in an arc shape. The two outermost retractable airbags 1 are each connected to a fixing clip 3, which clamps them to the outside of the arc-shaped auricle. A connecting tube 9, penetrating the inside of each telescopic seat 2, connects adjacent retractable airbags 1. Each of the multiple retractable airbags 1 and the multiple telescopic seats 2 has an ear-holding groove 8 at the inner end of the arc shape, which wraps around the outside of the arc-shaped auricle. The arc of the multiple telescopic seats 2... Both ends of the axial section are provided with traction sleeves 4, and multiple traction sleeves 4 are located radially along the arc of the telescopic seat 2, each passing through a limit frame 5. A telescopic frame 6 is inserted into the radial end of each limit frame 5 along the arc of the telescopic seat 2. A rubber damping pad 28, which is elastic and fits tightly against the outside of the telescopic frame 6, is snapped into the inside of each limit frame 5. A stimulation electrode 7 is provided inside the end of each telescopic frame 6 away from the limit frame 5. A clamping assembly is provided between the traction sleeve 4 and the connecting tube 9, and the clamping assembly can pass through the limit frame 5 and the telescopic seat 2. The retractable frame 6 pulls the stimulation electrodes 7 located on both sides of the telescopic base 2 closer to the ear slot 8. The retractable airbags 1 are arranged in a trapezoidal shape along the radial direction of the arc, with the innermost one being larger than the outermost one. One of the outermost retractable airbags 1 is connected to a flexible tube that communicates with the outside. The flexible tube is connected to a controller 29 containing a built-in battery and a suction pump. During the installation and fixation of the device, the arc-shaped strap-shaped wearable seat, composed of multiple retractable airbags 1 and multiple telescopic bases 2, is clamped to the outside of the patient's auricle by the fixing clips 3 on both sides and is then secured to the outside of the patient's auricle by the ear slot 8. The flexible tube then connects to the suction pump inside the controller 29. The suction pump is connected, and a valve is installed in the middle of the hose. At the same time, the stimulation electrode 7 is installed on both sides of the telescopic seat 2 through the traction sleeve 4, the limiting frame 5, and the telescopic frame 6, and is electrically connected to the controller 29 through the wiring harness. At this time, the valve in the middle of the hose is opened, and the suction pump is started through the controller 29 to allow the suction pump to evacuate the air from the multiple expansion and contraction airbags 1 and multiple connecting tubes 9, so that the wearable seat can fit tightly against the patient's auricle. The clamping component allows the multiple stimulation electrodes 7 to fit tightly against the auricular vagus nerve stimulation point on the patient's auricle. After the air is evacuated, the valve in the middle of the hose is closed to maintain the shape of the wearable seat.

[0033] The controller 29 is the signal generator and control center of the entire device. It is responsible for generating electrical pulses that meet the requirements of nerve stimulation and managing the suction and inflation process of the suction pump. The stimulation electrode 7 is the interface between the current and human tissue. It is responsible for non-invasively, efficiently and accurately introducing the electrical pulses output by the controller 29 into the skin of the auricle to activate the vagus nerve. It can also detect the contact impedance between the skin to prevent poor contact between the stimulation electrode 7 and the skin. The stimulation electrode 7 and the controller 29 are both existing known technologies and will not be described in detail again.

[0034] like Figure 1 , Figure 2 and Figure 10 As shown, the controller 29 has a built-in battery and a suction pump. It uses the suction pump and tubing to evacuate and inflate multiple expansion and contraction airbags 1 and multiple connecting tubes 9. The controller 29 is electrically connected to multiple stimulation electrodes 7 via a wiring harness. The telescopic base 2 is arranged in a trapezoidal shape, smaller on the inside and larger on the outside, along the radial direction of its arc. When the controller 29 evacuates the expansion and contraction airbags 1 and connecting tubes 9, the multiple expansion and contraction airbags 1 contract inwards, causing the multiple telescopic bases 2 to move closer together. At this time, the amount of contraction on the inner and outer sides of the arc where the expansion and contraction airbags 1 are located is affected by the clamping position of the two fixing clips 3 and the shape of the patient's auricle. When the entire wearing base... When the length contracts to the same length as the auricle between the two clamping points of the two fixing clips 3, the outer side of the arc where the expansion and contraction airbag 1 is located will stop contracting. When the curvature of the wearer contracts to the same curvature of the auricle between the two clamping points of the two fixing clips 3, the inner side of the arc where the expansion and contraction airbag 1 is located will stop contracting. This causes multiple telescopic seats 2 to move closer to each other under the contraction of the expansion and contraction airbag 1 and bend towards the inner side of the arc, making the overall length of the wearer shorter and the curvature smaller, so as to fit tightly against the outside of auricles of different sizes. This makes the wearer fit tightly against the outside of the patient's auricle, improving the fit and making the wear more stable and comfortable.

[0035] Meanwhile, the stimulation electrodes 7 located on both sides of the telescopic base 2 can drive the traction sleeves 4, the limiting frame 5 and the telescopic frame 6 on both sides to move closer to the telescopic base 2 through the clamping assembly, so that the two stimulation electrodes 7 can fit tightly against the auricular vagus nerve stimulation point on the auricle and provide support to both sides of the wearer to ensure stable wear.

[0036] The wearable device can adjust its clamping position according to the size of the patient's auricle and the location of the vagus nerve stimulation through two fixing clips 3. The stimulation electrode 7 can be connected to the traction sleeve 4 through the limiting frame 5 and the telescopic frame 6, and connected to the telescopic seat 2 through the traction sleeve 4. This allows the stimulation electrode 7 to be installed on both sides of the telescopic seat 2 at the corresponding position according to the location of the vagus nerve stimulation. This means that the position of the stimulation electrode 7 can be adjusted by adjusting the clamping position of the wearable device, or by installing it on both sides of different telescopic seats 2.

[0037] In addition, such as Figure 9 As shown, the telescopic frame 6 can extend and retract inside the limiting frame 5, and is limited by the friction between the rubber damping pad 28 and the outer wall of the telescopic frame 6. This allows the stimulating electrode 7 to adjust the distance between itself and the telescopic seat 2 through the extension and retraction between the limiting frame 5 and the telescopic frame 6, thereby further adjusting the position of the stimulating electrode 7. Thus, through multiple adjustments to the stimulating electrode 7, the stimulating electrode 7 can be precisely attached to the vagus nerve stimulation point on the auricle.

[0038] In addition, such asFigure 2 As shown, during the contraction of the retractable airbag 1, since the retractable airbag 1 is arranged in a trapezoidal shape with a larger inner diameter and a smaller outer diameter along the radial direction of the arc, and the telescopic seat 2 is arranged in a trapezoidal shape with a smaller inner diameter and a larger outer diameter along the radial direction of the arc, and the retractable airbag 1 and the telescopic seat 2 are alternately bonded and distributed in an arc, the maximum contraction amount of the retractable airbag 1 located on the inner side of the radial direction of the arc will be greater than the maximum contraction amount on the outer side, and the maximum approach length of the telescopic seat 2 located on the inner side of the radial direction of the arc will be greater than the maximum approach length on the outer side, allowing the wearable seat to have a greater bending range and improving the wearable seat's adaptability range for different sized auricles.

[0039] like Figures 2-4 As shown, the clamping assembly includes a cylindrical airbag 10. The cylindrical airbag 10, which is located inside the telescopic seat 2 and is cylindrical, is connected to the middle of the connecting pipe 9. Multiple support rings 11 are provided inside the cylindrical outer wall of the cylindrical airbag 10. Two support plates 12 are symmetrically arranged at the two axial inner ends of the cylindrical airbag 10, and a support spring 13 is provided between the two support plates 12. Elastic rubber rods 14 are connected between the two axial outer ends of the cylindrical airbag 10 and the two traction sleeves 4. During the process of evacuating the airbag 10 and the connecting pipe 9, the air inside the cylindrical airbag 10 is drawn out and contracts inward when the connecting pipe 9 is evacuated by the controller 29 because the cylindrical airbag 10 is connected to the middle of the connecting pipe 9.

[0040] At this time, since the cylindrical airbag 10 is provided with multiple support rings 11, the cylindrical airbag 10 can only contract along the axial direction under the support of the multiple support rings 11, thereby driving the rubber rods 14 on both sides to contract inward along the axial direction of the cylindrical airbag 10. This allows the elastic rubber rods 14 to elastically pull the limiting frame 5 and the telescopic frame 6 through the traction sleeve 4, thereby driving the stimulation electrode 7 to approach the patient's auricle and, under the elastic pull of the rubber rods 14, to tightly adhere to the vagus nerve stimulation site on the patient's auricle.

[0041] Furthermore, when the controller 29 inflates the retractable airbag 1 and the connecting tube 9 using a suction pump, the retractable airbag 1 expands outward, and the cylindrical airbag 10 expands axially under the combined action of inflation and the support plate 12 and the support spring 13, allowing the stimulation electrodes 7 on both sides of the telescopic seat 2 to release their contact with the patient's auricle. At the same time, the length of the wearing seat increases and the curvature becomes larger, allowing the stimulation electrodes 7 and the wearing seat to quickly separate from the patient's auricle, making it easier to remove.

[0042] like Figure 5 and Figure 10As shown, an installation assembly is provided between the telescopic base 2 and the ends of the limiting frames 5 on both sides away from the stimulation electrode 7. The installation assembly includes an inner limiting seat 15. The inner limiting seat 15 is connected to the center of the outer arc of the telescopic base 2, and a magnetic ring 16 is provided on the outer side of the inner limiting seat 15 inside the telescopic base 2. An installation seat 21 is provided at the end of the inner limiting seat 15 away from the telescopic base 2, and an outer limiting seat 22 is connected to the end of the installation seat 21 near the telescopic base 2, which is sleeved on the outside of the inner limiting seat 15. Connecting frames 23 are connected to the two axial ends of the arc of the telescopic base 2. The end of the limiting frame 5 away from the stimulation electrode 7 is snapped into the inside of the connecting frame 23 and connected to the connecting frame 23. The sliding connection is provided. A slotted frame groove 24 is provided inside the mounting base 21 at the end furthest from the telescopic base 2. A limiting frame 25 is engaged inside the slotted frame groove 24. A magnetic suction frame 26, sleeved on the outside of the outer limiting base 22, is connected to the end of the limiting frame 25 closest to the telescopic base 2. An iron ring that fits against the magnetic ring 16 is provided inside the magnetic suction frame 26. During the installation of the stimulation electrode 7, the limiting frames 5, connected to both sides of the mounting base 21 via the connecting frame 23, are inserted into the corresponding positions of the traction sleeve 4, and the telescopic base... The inner side of the arc is pushed, so that the outer limiting seat 22 connected to the mounting seat 21 is sleeved on the outside of the inner limiting seat 15. At this time, the magnetic suction frame 26 is magnetically attracted by the magnetic ring 16 and sticks to each other, and drives the limiting card frame 25 to be inserted into the card frame slide groove 24 to limit the mounting seat 21, thereby fixing the limiting frame 5 on both sides of the telescopic seat 2. Then, the telescopic frame 6 is inserted into the limiting frame 5, and the stimulation electrode 7 is fixed on both sides of the telescopic seat 2 through the telescopic frame 6, thereby realizing the installation of the stimulation electrode 7.

[0043] In addition, the position adjustment of the limit frame 5 can be synchronized by sliding inside the connecting frame 23 during the pulling process of the traction sleeve 4, so as to ensure that the limit frame 5 can smoothly approach the telescopic seat 2.

[0044] like Figures 5-8As shown, a locking assembly is provided between the inner limiting seat 15 and the mounting base 21. The locking assembly includes telescopic holes 17. The inner limiting seat 15 has telescopic holes 17 at both tangential ends of the arc where the telescopic base 2 is located. A locking pin 18 extends through the telescopic hole 17 and into the inner limiting seat 15. The end of the locking pin 18 protruding into the inner limiting seat 15 is hemispherical. A spring baffle 19 is slidably connected to the outside of the locking pin 18 and is connected to the inside of the telescopic hole 17. An unlocking spring 20 is located inside the telescopic hole 17 at the hemispherical end of the spring baffle 19 away from the locking pin 18. A locking plug 27 is inserted into the inner limiting seat 15 and connected to the center of the limiting frame 25 near the telescopic base 2. The locking plug 27 passes through the mounting base 21 and extends to both ends. During the installation of the stimulation electrode 7, when the outer limiting seat 22 is fitted onto the outside of the inner limiting seat 15, the magnetic suction frame 26, under the magnetic attraction of the magnetic ring 16, drives the limiting card frame 25 to be inserted into the card frame slide groove 24. At the same time, it drives the locking plug 27 connected to the limiting card frame 25 to be inserted into the outer limiting seat 22 and between the two locking pins 18 inside the inner limiting seat 15. Since the two edges of the locking plug 27, which are away from the limiting card frame 25 and close to the locking pins 18, are arc-shaped, and the two locking pins 18 are hemispherical at the end protruding inside the inner limiting seat 15, the locking plug 27 can be smoothly inserted between the two locking pins 18 and push the other ends of the two locking pins 18 to the outside of the inner limiting seat 15.

[0045] At this time, since there are two locking holes on the inner wall of the outer limiting seat 22 corresponding to the locking pin 18, the other ends of the two locking pins 18 can be smoothly inserted into the two locking holes on the inner wall of the outer limiting seat 22. The hemispherical end of the locking pin 18 will slide to the two planar positions of the locking plug 27 and be magnetically limited by the magnetic ring 16 and the magnetic suction frame 26 through the limiting frame 25, so that the inner limiting seat 15 and the outer limiting seat 22 can be locked by the locking pin 18, ensuring the stable installation of the stimulation electrode 7.

[0046] Conversely, when disassembling the stimulation electrode 7, first pull the limiting frame 25 to the outer side of the arc where the telescopic seat 2 is located, so that the magnetic frame 26 separates from the magnetic ring 16. At the same time, pull the locking plug 27 out from between the two locking pins 18. At this time, the two locking pins 18 slide into the inner limiting seat 15 under the action of the spring baffle 19 and the unlocking spring 20, and slide out from the card hole on the inner wall of the outer limiting seat 22, releasing the lock between the inner limiting seat 15 and the outer limiting seat 22, so that the outer limiting seat 22 can be smoothly pulled out from the outside of the inner limiting seat 15 to the outer side of the arc where the telescopic seat 2 is located, thereby realizing the disassembly of the stimulation electrode 7.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A transcutaneous vagus nerve stimulation device with skin resistance monitoring, comprising multiple retractable airbags (1) and multiple telescopic seats (2), wherein the multiple telescopic seats (2) are located between the multiple retractable airbags (1) and are alternately attached together in an arc shape, the outermost two retractable airbags (1) are each connected to a fixing clip (3), and a connecting tube (9) penetrating inside the telescopic seat (2) is connected between adjacent two retractable airbags (1), traction sleeves (4) are provided on the outer sides of both ends of the arc of the multiple telescopic seats (2), and the multiple traction sleeves (4) are all connected to a limiting frame (5) in the radial direction of the arc of the telescopic seat (2), and a telescopic frame (6) is inserted into the radial end of the limiting frame (5) of the multiple limiting frame (5), and a stimulation electrode (7) is provided in the end of the multiple telescopic frame (6) away from the limiting frame (5), characterized in that: The retractable airbag (1) is arranged in a trapezoidal shape with a larger inner diameter and a smaller outer diameter along the radial direction of the arc, and one of the retractable airbags (1) located on the outermost side is connected to a flexible tube that communicates with the outside. The telescopic seat (2) is arranged in a trapezoidal shape with a smaller inner diameter and a larger outer diameter along the radial direction of the arc. A clamping assembly is provided between the traction sleeve (4) and the connecting tube (9), and the clamping assembly can pull the stimulation electrodes (7) located on both sides of the telescopic seat (2) toward the cassette (8) side by means of the limiting frame (5) and the telescopic frame (6).

2. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 1, characterized in that, The clamping assembly includes a cylindrical airbag (10), and the connecting tube (9) is connected to a cylindrical airbag (10) located inside the telescopic seat (2) and is cylindrical in shape. Multiple support rings (11) are provided inside the cylindrical outer wall of the cylindrical airbag (10).

3. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 2, characterized in that, Two support plates (12) are symmetrically arranged at the two inner ends of the cylindrical airbag (10), and a support spring (13) is arranged between the two support plates (12). The two outer ends of the cylindrical airbag (10) are connected to the two traction sleeves (4) with elastic rubber rods (14).

4. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 1, characterized in that, An installation assembly is provided between the telescopic seat (2) and the limiting frame (5) on both sides at the end away from the stimulation electrode (7). The installation assembly includes an inner limiting seat (15). The inner limiting seat (15) is connected at the center of the arc-shaped outer end of the telescopic seat (2), and a magnetic ring (16) located inside the telescopic seat (2) is provided on the outside of the inner limiting seat (15).

5. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 4, characterized in that, The inner limiting seat (15) is provided with a mounting seat (21) at the end away from the telescopic seat (2), and the mounting seat (21) is connected to an outer limiting seat (22) sleeved on the outside of the inner limiting seat (15) at the end near the telescopic seat (2). The mounting seat (21) is connected to a connecting frame (23) at both axial ends of the arc where the telescopic seat (2) is located.

6. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 5, characterized in that, The limiting frame (5) is attached to the inside of the connecting frame (23) at the end away from the stimulation electrode (7) and is slidably connected to the connecting frame (23). The mounting base (21) is provided with a frame groove (24) at the end away from the telescopic base (2), and a limiting frame (25) is attached inside the frame groove (24).

7. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 6, characterized in that, The limiting frame (25) is connected to a magnetic frame (26) that is sleeved on the outside of the outer limiting seat (22) at one end near the telescopic seat (2), and an iron ring that fits with the magnetic ring (16) is provided inside the magnetic frame (26).

8. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 7, characterized in that, A locking assembly is provided between the inner limiting seat (15) and the mounting seat (21). The locking assembly includes a telescopic hole (17). The inner limiting seat (15) has telescopic holes (17) at both tangential ends of the arc where the telescopic seat (2) is located.

9. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 8, characterized in that, The telescopic hole (17) has a locking pin (18) extending into the inner limit seat (15), and the end of the locking pin (18) protruding into the inner limit seat (15) is hemispherical. A spring baffle (19) is slidably connected to the outside of the locking pin (18) inside the telescopic hole (17).

10. The transcutaneous vagus nerve stimulation device with skin resistance monitoring as described in claim 9, characterized in that, The spring baffle (19) is provided with an unlocking spring (20) located inside the telescopic hole (17) at the hemispherical end away from the locking pin (18). The inner limit seat (15) is connected to a locking plug (27) at the center of the end of the limit frame (25) near the telescopic seat (2). The locking plug (27) passes through the mounting base (21) and extends between the two locking pins (18).

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