Vagus nerve stimulation device

Abstract

The invention relates to a vagus nerve stimulation device which comprises a handle, two stimulation assemblies and a control module, each stimulation assembly comprises a conductive massage head, the conductive massage head is rotatably arranged at one end of the handle, and the control module is arranged in the handle and electrically connected with the conductive massage head. The control module can transmit stimulation current to vagus nerves of the neck of the human body through the conductive massage head. The vagus nerve stimulation device not only has a nerve stimulation function, but also has a massage function, and effectively solves the technical problem that the vagus nerve stimulation device is single in function.

Description

Technical Field

[0001] This application relates to the field of neuromodulation technology, and in particular to a vagus nerve stimulation device. Background Technology

[0002] The vagus nerve is the longest and most widely distributed cranial nerve in the human body. It originates from the brainstem and extends to the head, neck, chest, and abdomen. By stimulating the vagus nerve and thus regulating nerve function, various diseases can be treated, leading to the development of vagus nerve stimulation devices.

[0003] Vagus nerve stimulation devices are mainly divided into two categories: invasive devices that require surgical implantation and non-invasive devices that do not require surgery. Among them, non-invasive vagus nerve stimulation devices have advantages such as being non-invasive, having no surgical risks, being highly safe, and being flexible and convenient to use. They are particularly suitable for the rapid relief of acute symptoms and the regulation of daily neurological function.

[0004] Currently, non-invasive vagus nerve stimulation devices are mainly divided into two types: those for stimulating the ear and those for stimulating the neck. Among them, vagus nerve stimulation devices for stimulating the neck usually use electrode pads to stimulate the skin. These vagus nerve stimulation devices can only be used as devices to stimulate nerves and have a single function. Summary of the Invention

[0005] Therefore, it is necessary to provide a vagus nerve stimulation device to solve the problem of its single function.

[0006] This application provides a vagus nerve stimulation device, comprising: a handle, two sets of stimulation components, and a control module. Each set of stimulation components includes a conductive massage head, which is rotatably disposed at one end of the handle. The control module is disposed inside the handle and electrically connected to the conductive massage head. The control module is capable of transmitting stimulation current to the vagus nerve in the neck of the human body through the conductive massage head.

[0007] In one embodiment, the conductive massage head is configured to be able to passively rotate under the action of an external force applied thereto.

[0008] In one embodiment, the stimulation component further includes a drive member, which is driven to the conductive massage head for actively rotating the conductive massage head. The drive member is electrically connected to the control module to control the movement of the drive member via the control module.

[0009] In one embodiment, each set of stimulation components further includes a mounting post, one end of which is fixedly connected to one end of the handle, and the other end of which extends out of the handle. The conductive massage head is fitted onto the end of the mounting post that extends out of the handle, and the conductive massage head is rotatable about the central axis of the mounting post.

[0010] In one embodiment, the mounting post is configured as an electrode post, one end of which is electrically connected to the control module, and the other end of which is in conductive contact with the conductive massage head.

[0011] In one embodiment, the conductive massage head is electrically connected to the control module via an electrical connection mechanism, which is a brush or a conductive slip ring.

[0012] In one embodiment, each set of stimulation components further includes a bushing rotatably fitted around the outer periphery of the mounting post, and the conductive massage head is fitted around the outside of the bushing and fixedly connected to the bushing.

[0013] In one embodiment, the outer periphery of the mounting post is provided with a first limiting part and a second limiting part spaced apart, and both ends of the bushing are restricted between the first limiting part and the second limiting part, and at least one of the first limiting part and the second limiting part is detachably connected to the mounting post.

[0014] In one embodiment, the first limiting part is a boss provided on the surface of the mounting post, the surface of the mounting post is provided with an annular groove, and the second limiting part is a retaining spring connected to the annular groove.

[0015] In one embodiment, the bushing is an insulating element.

[0016] In one embodiment, the conductive massage head is provided with a receiving groove, and the conductive massage head is sleeved on the outside of the bushing through the receiving groove. The outer surface of the bushing is provided with a buckle, and the inner wall of the receiving groove is provided with a slot. The buckle and the slot cooperate to fix the bushing and the conductive massage head together.

[0017] In one embodiment, the bushing sidewall has a U-shaped perforation, an elastic arm is formed inside the U-shaped perforation, and the buckle is located at the free end of the elastic arm.

[0018] In one embodiment, one end of the handle is provided with a mounting portion, the mounting portion is provided with a mounting cavity, the mounting cavity has a first opening facing the outside of the handle, one end of the mounting post is provided with a mating portion, the mounting post passes through the first opening, and the mating portion is accommodated in the mounting cavity to fix the mounting post to the mounting portion.

[0019] In one embodiment, the mounting post is configured as an electrode post, the mounting cavity also has a second opening, the second opening communicates with the internal cavity of the handle, the mounting post is also provided with a connecting part, the connecting part passes through the second opening, the control module is installed in the internal cavity of the handle, and the connecting part is electrically connected to the control module through a wire.

[0020] In one embodiment, the mounting portion includes a first part and a second part, one of the first part and the second part being fixedly connected to the handle, the first part and the second part being detachably connected, and the first part and the second part enclosing the mounting cavity, the first opening being located in the first part, and the second opening being located in the second part.

[0021] In one embodiment, the second part is integrally formed on the handle and located inside the handle, the first part is configured as an end cap located outside the handle, and the first part and the second part are threadedly connected.

[0022] In one embodiment, the cross-section of the mounting cavity is non-circular, and the shape of the mating part is adapted to the shape of the mounting cavity.

[0023] In one embodiment, the conductive massage head is spherical, ellipsoidal, oval, or teardrop-shaped.

[0024] In one embodiment, the stimulating current is an electrical pulse with a frequency of 50Hz to 1000Hz.

[0025] Compared with existing technologies, the vagus nerve stimulation device provided in this application, due to the electrical connection between the control module and the conductive massage head, allows the two conductive massage heads of the two stimulation components to form a conductive anode and cathode. When in contact with human skin, an electrical stimulation circuit is formed through the skin, thereby stimulating the skin surface with current. Furthermore, because the conductive massage head is rotatable, it can roll on the human skin during use, thus providing a massage effect. Therefore, this vagus nerve stimulation device not only has the function of stimulating the nerve but also a massage function, effectively solving the technical problem of the single function of vagus nerve stimulation devices. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a perspective view of a vagus nerve stimulation device according to an embodiment of this application;

[0028] Figure 2 for Figure 1 A partial cross-sectional view of the vagus nerve stimulation device shown.

[0029] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0030] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle;

[0031] Figure 5 for Figure 1 An exploded view of the vagus nerve stimulation device shown.

[0032] Figure 6 for Figure 1 An exploded view of the vagus nerve stimulation device shown from another perspective;

[0033] Figure 7 This is a schematic diagram of the structure of a bushing according to an embodiment of this application;

[0034] Figure 8 This is a perspective view of a mounting post according to an embodiment of this application;

[0035] Figure 9 for Figure 1 A schematic diagram of the vagus nerve stimulation device without its lower cover;

[0036] Figure 10 This is a schematic diagram of the structure of a vagus nerve stimulation device according to an embodiment of this application;

[0037] Figure 11 for Figure 10 A schematic diagram of the vagus nerve stimulation device from another perspective.

[0038] Reference numerals: 10, handle; 101, upper cover; 102, lower cover; 11, mounting part; 111, first part; 112, second part; 12, mounting cavity; 121, first opening; 122, second opening; 20, conductive massage head; 21, receiving groove; 22, slot; 30, mounting post; 31, first limiting part; 32, second limiting part; 321, annular groove; 33, mating part; 34, connecting part; 35, gasket; 36, connecting screw; 37, washer; 40, bushing; 41, buckle; 42, U-shaped hollow hole; 43, elastic arm; 50, control module; 60, battery; 70, control component; 80, power switch; 90, wire. Detailed Implementation

[0039] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0044] Please see Figures 1 to 9This application provides a vagus nerve stimulation device suitable for stimulating the vagus nerve in the neck. The device includes a handle 10, two sets of stimulation components, and a control module 50. Each stimulation component includes a conductive massage head 20, rotatably mounted at one end of the handle 10. The control module 50 is located within the handle 10 and electrically connected to the conductive massage head 20. The control module 50 transmits stimulation current to the vagus nerve in the neck via the conductive massage head 20. Thus, through the electrical connection between the control module 50 and the conductive massage head 20, the two conductive massage heads 20 of the two sets of stimulation components form a conductive anode and cathode. When in contact with human skin, an electrical stimulation circuit is formed through the skin, thereby stimulating the vagus nerve in the neck. Furthermore, since the conductive massage head 20 is rotatable, it can roll on the skin during use, thus providing a massage effect. Therefore, this vagus nerve stimulation device not only has the function of stimulating the nerve but also a massage function, effectively solving the technical problem of single-function vagus nerve stimulation devices.

[0045] Furthermore, the conductive massage head 20 is made of metal or conductive silicone, so that current is output to the human skin through the conductive massage head 20, thereby stimulating the human skin.

[0046] In one embodiment, please refer to Figure 2 and Figure 3 The conductive massage head 20 is configured to passively rotate under the action of an external force applied thereto. Thus, when the user moves the vagus nerve stimulation device by hand, the friction between the conductive massage head 20 and the skin of the neck causes the conductive massage head 20 to roll. This rolling motion allows the conductive massage head 20 to locate the anatomical position of the vagus nerve in the neck, significantly reducing friction between the conductive massage head 20 and the skin, and improving user comfort. The rolling conductive massage head 20 also provides a massage effect, allowing the vagus nerve stimulation device to massage the skin while stimulating the vagus nerve. Furthermore, by rolling the conductive massage head 20 on the skin surface, the vagus nerve stimulation device can also be used as a massager in the off state.

[0047] In another embodiment (not shown), the stimulation component may further include a drive element, which is driven to the conductive massage head for actively rotating the conductive massage head. The drive element is electrically connected to a control module to control the movement of the drive element. Thus, when using its massage function, the vagus nerve stimulation device can be controlled by the control module, allowing the user to rotate the conductive massage head without applying force, making operation easier.

[0048] Understandably, the driving component can be a motor, with its output shaft connected to the conductive massage head, thereby driving the conductive massage head to rotate. During operation, the user can input control signals to the control module, which then controls the motor's start and stop, thus controlling the rotation or stopping of the conductive massage head.

[0049] Please see Figures 2 to 6 Each stimulation component also includes a mounting post 30, one end of which is fixedly connected to one end of the handle 10, and the other end of which extends out of the handle 10. A conductive massage head 20 is fitted onto the end of the mounting post 30 that extends out of the handle 10, and the conductive massage head 20 can rotate around the central axis of the mounting post 30. In this way, the conductive massage head 20 can be completely positioned outside the handle 10, allowing for a larger contact area with human skin and improving the massage effect.

[0050] In this embodiment, the two mounting posts 30 are set at an angle, that is, the two mounting posts 30 are roughly V-shaped, so that the two conductive massage heads mounted on the mounting posts 30 can adapt to the curve of the human neck, thereby providing a better massage experience.

[0051] Of course, in other embodiments, the conductive massage head can also be configured as a omnidirectional rotating structure, as long as the conductive massage head can rotate to achieve the massage function.

[0052] Please see Figure 2 , Figure 3 and Figure 9 In this embodiment, the mounting post 30 is configured as an electrode post, with one end electrically connected to the control module 50 and the other end in conductive contact with the conductive massage head 20. Thus, the mounting post 30 serves not only as the pivot of the conductive massage head 20 but also as the conductive structure between the conductive massage head 20 and the control module 50. This single structure integrates two functions, simplifying the design and facilitating the miniaturization of the vagus nerve stimulation device.

[0053] Of course, in other embodiments, the mounting post 30 may only serve as the pivot of the conductive massage head 20 without conducting electricity. Correspondingly, the conductive massage head 20 can be electrically connected to the control module via an electrical connection mechanism, which can be a brush or a conductive slip ring. In this way, the conductive massage head 20 and the control module 50 can still be electrically connected, ensuring the normal transmission of the stimulation current.

[0054] Furthermore, each stimulation assembly also includes a bushing 40, which is rotatably fitted onto the outer periphery of the mounting post 30. The conductive massage head 20 is fitted onto the outside of the bushing 40 and fixedly connected to it. In this way, the conductive massage head 20 is rotatably connected to the mounting post 30 through the bushing 40.

[0055] The mounting post 30 has a first limiting part 31 and a second limiting part 32 spaced apart on its outer periphery, and both ends of the bushing 40 are restricted between the first limiting part 31 and the second limiting part 32. In this way, by setting the first limiting part 31 and the second limiting part 32, the bushing 40 can be axially limited, preventing the bushing 40 from coming off one end of the mounting post 30.

[0056] Furthermore, at least one of the first limiting portion 31 and the second limiting portion 32 is detachably connected to the mounting post 30. This facilitates the fitting of the bushing 40 onto the outer periphery of the mounting post 30 during assembly. In one embodiment, one of the first limiting portion 31 and the second limiting portion 32 is integrally formed into the mounting post 30, while the other is detachably connected to the mounting post 30. Thus, during installation, the bushing 40 can be fitted onto the outer periphery of the mounting post 30 first, and then the detachable portion of the first limiting portion 31 and the second limiting portion 32 can be connected to the mounting post 30. This not only simplifies the structure but also facilitates installation.

[0057] like Figure 3 and Figure 8 As shown, the first limiting part 31 is a boss provided on the surface of the mounting post 30, the surface of the mounting post 30 is provided with an annular groove 321, and the second limiting part 32 is a retaining spring connected to the annular groove 321. Thus, the structure is simple and it is easy to install the bushing 40 on the outer periphery of the mounting post 30. Of course, in other embodiments, the second limiting part 32 can also be a nut or a pin; this application does not limit this, as long as the second limiting part 32 can be detachably connected to the mounting post 30 and can axially limit the bushing 40.

[0058] In this embodiment, the boss is integrally formed on the surface of the mounting post 30, which is simple in structure and easy to process.

[0059] In this embodiment, the first limiting part 31 is provided at the end of the mounting post 30 near the handle 10, and the second limiting part 32 is provided at the end of the mounting post 30 away from the handle 10.

[0060] Furthermore, the bushing 40 is an insulating component, thus preventing current transmission between the mounting post 30 and the conductive massage head 20 through the bushing 40. In this embodiment, the bushing 40 is made of plastic, providing good insulation.

[0061] Further, please see Figure 3 and Figure 4The conductive massage head 20 is provided with a receiving groove 21, through which it is sleeved onto the outside of the bushing 40. A buckle 41 is provided on the outer surface of the bushing 40, and a groove 22 is provided on the inner wall of the receiving groove 21. The buckle 41 and the groove 22 cooperate to securely connect the bushing 40 and the conductive massage head 20. Thus, the buckle 41 and the groove 22 secure the conductive massage head 20 and the bushing 40, preventing the conductive massage head 20 from easily falling off the bushing 40. Simultaneously, the cooperation between the bushing 40 and the mounting post 30 allows for smoother rotation of the conductive massage head 20.

[0062] Further, please see Figure 7 The bushing 40 has a U-shaped perforated hole 42 on its side wall, and an elastic arm 43 is formed inside the U-shaped perforated hole 42. A buckle 41 is located at the free end of the elastic arm 43. Thus, during assembly, when the mounting post 30 with the bushing 40 installed is inserted into the receiving groove 21, the elastic arm 43 can elastically deform, bringing the buckle 41 closer to the central axis of the mounting post 30. This makes it easier for the bushing 40, which is fitted onto the outside of the mounting post 30, to be inserted into the receiving groove 21, making the assembly process more convenient. Furthermore, when the buckle 41 moves to the slot 22 position, the elastic arm 43 automatically resets, and the buckle 41 can engage in the slot 22, thereby forming a reliable connection between the conductive massage head 20 and the bushing 40.

[0063] Of course, in other embodiments, the conductive massage head 20 and the bushing 40 can also be connected in other ways. For example, the bushing 40 and the receiving groove 21 of the conductive massage head 20 can be press-fitted, or the bushing 40 and the conductive massage head 20 can be bonded together with glue. This application does not limit this, as long as the conductive massage head 20 and the bushing 40 are fixedly connected so that the conductive massage head 20 can rotate around the central axis of the mounting post 30.

[0064] Please see Figures 2 to 6 ,as well as Figure 8 The handle 10 has a mounting portion 11 at one end, and the mounting portion 11 has a mounting cavity 12. The mounting cavity 12 has a first opening 121 facing the outside of the handle 10. The mounting post 30 has a mating portion 33 at one end, and the mounting post 30 passes through the first opening 121. The mating portion 33 is housed in the mounting cavity 12 to fix the mounting post 30 to the mounting portion 11. In this way, by installing the mating portion 33 in the mounting cavity 12, one end of the mounting post 30 can be fixed inside the handle 10. The first opening 121 ensures that one end of the mounting post 30 extends out of the handle 10, thereby facilitating the connection between the mounting post 30 and the conductive massage head 20.

[0065] In this embodiment, the mounting post 30 is configured as an electrode post, and one end of the mounting post 30 extending out of the handle 10 abuts against the bottom wall of the receiving groove 21, thereby achieving conductive contact between the mounting post 30 and the conductive massage head 20.

[0066] Furthermore, the mounting cavity 12 also has a second opening 122, which communicates with the internal cavity of the handle 10. The mounting post 30 also has a connecting portion 34, which passes through the second opening 122. Please refer to... Figure 6 and Figure 9 The control module 50 is installed inside the internal cavity of the handle 10, and the connecting part 34 is electrically connected to the control module 50 via a wire 90. Thus, by placing the control module 50 inside the handle 10, the handle 10 can protect the control module 50. The second opening 122 facilitates the electrical connection between the mounting post 30 and the control module 50.

[0067] In this embodiment, the control module 50 is configured as a control circuit board. Please refer to [link / reference needed]. Figure 3 and Figure 9 The mounting post 30 and the control module 50 are electrically connected via a wire 90. Specifically, the end of the connecting part 34 is provided with a washer 35 and a connecting screw 36. The connecting screw 36 connects the washer 35 to the end of the connecting part 34, and the end of the wire 90 can be crimped between the end of the connecting part 34 and the washer 35. This ensures the reliability and convenience of the connection between the wire 90 and the mounting post 30. It is understood that both the washer 35 and the connecting screw 36 are metal parts to ensure a reliable conductive contact between the wire 90 and the mounting post 30.

[0068] Further, please see Figure 3 The mounting portion 11 includes a first part 111 and a second part 112. One of the first part 111 and the second part 112 is fixedly connected to the handle 10. The first part 111 and the second part 112 are detachably connected, and the first part 111 and the second part 112 enclose a mounting cavity 12. A first opening 121 is provided in the first part 111, and a second opening 122 is provided in the second part 112. In this way, by setting the mounting portion 11 into two detachable parts, it is convenient to install the mating part 33 into the mounting cavity 12.

[0069] In this embodiment, the second part 112 is integrally formed on the handle 10 and located inside the handle 10, while the first part 111 is configured as an end cap located outside the handle 10, and the first part 111 and the second part 112 are threadedly connected. Thus, the mounting part 11 has a simple structure and is easy to assemble. However, this is not a limitation. In other embodiments, the first part 111 may be integrally formed on the handle 10 and located outside the handle 10, while the second part 112 may be located inside the handle 10, and the second part 112 and the first part 111 may be threadedly connected. This application does not include this configuration. Furthermore, the first part 111 and the second part 112 may also be connected by other detachable methods such as snap-fit ​​or fastener connection.

[0070] Please see Figure 3In this embodiment, the first limiting part 31 is located on the side of the mating part 33 away from the connecting part 34, and the first limiting part 31 passes through the first opening 121. Depending on the gap between the bushing 40 and the first part 111, a washer 37 can be provided between the bushing 40 and the first part 111. The washer 37 is fitted onto the outer periphery of the first limiting part 31, so that the washer 37 and the first limiting part 31 can together axially limit the end of the bushing 40, making the rotational connection between the bushing 40 and the mounting post 30 more reliable. Of course, in other embodiments, the washer 37 may not be provided, and the end of the bushing 40 abuts against the first limiting part 31 and the first part 111; or, the end of the bushing 40 abuts against the first limiting part 31, and there is a gap between the bushing 40 and the first part 111.

[0071] Further, please see Figure 6 and Figure 8 The cross-section of the mounting cavity 12 is non-circular, and the shape of the mating part 33 is adapted to the shape of the mounting cavity 12. In this way, the rotation of the mounting post 30 can be restricted by the cooperation between the mounting cavity 12 and the mating part 33, thereby ensuring that the wire 90 connected to the mounting post 30 will not twist with the mounting post 30.

[0072] In this embodiment, the cross-section of the mounting cavity 12 is pentagonal, but it is not limited to this. In other embodiments, the cross-section of the mounting cavity 12 can also be triangular, rectangular, hexagonal, octagonal, D-shaped or other shapes, as long as the mating part 33 does not rotate within the mounting cavity 12.

[0073] Further, please see Figure 6 The handle 10 also houses a battery 60, which powers the control module 50. This battery 60 can be a lithium battery. Furthermore, the handle 10 may also have a charging interface (not shown) to charge the battery 60, facilitating repeated charging and reuse.

[0074] Further, please see Figure 5 and Figure 9 The vagus nerve stimulation device also includes a control component 70, which is electrically connected to the control module 50 and is used to input control signals to the control module 50. The control component 70 includes at least one of a button, push knob, rotary knob, and wireless control module. Thus, the electrical stimulation can be controlled by inputting control signals through the control component 70. It is understood that the control signals may include control signals that change the amplitude of the pulse current, thereby adapting to different users' different needs for electrical stimulation intensity. The control signals may also include control signals that change the repetition frequency of the pulse current, thereby producing stimulation effects of different depths on the cervical vagus nerve.

[0075] Understandably, buttons, push knobs, or rotary knobs can be incorporated into the surface of the handle 10 for user convenience. A wireless control module can be housed within the handle 10. This module may include Bluetooth, Wi-Fi, or other wireless technologies, allowing users to control the electrical signal via a mobile phone connection.

[0076] In addition, a power switch 80 can be installed on the handle 10 to turn the vagus nerve stimulation device on and off.

[0077] Further, please see Figure 6 The handle 10 may include an upper cover 101 and a lower cover 102 connected to each other. The upper cover 101 and the lower cover 102 enclose the internal cavity of the handle 10, thus facilitating the installation of components such as the control module 50 and the battery 60 inside the handle 10. In one embodiment, the mounting post 30 is fixedly connected to the upper cover 101, such as... Figure 5 As shown. In another embodiment, the mounting post 30 is fixedly connected to the lower cover 102, as shown. Figure 10 and Figure 11 As shown, this application does not impose any restrictions on this, as long as one end of the mounting post 30 is fixed to the handle 10. The upper cover 101 and the lower cover 102 can be connected by a snap-fit, a fastener, or adhesive, and this application does not impose any restrictions on this.

[0078] Please see Figure 1 In one embodiment, the conductive massage head 20 is spherical or ellipsoidal in shape, but is not limited to this, such as... Figure 10 and Figure 11 As shown, in another embodiment, the conductive massage head 20 is oval or teardrop-shaped. The oval or teardrop shape is more in line with the anatomical features of the human neck, which can increase the effective contact area and provide a richer massage sensation.

[0079] The vagus nerve stimulation device provided in this application is suitable for stimulating the vagus nerve in the human neck. The stimulation current output by this device is an electrical pulse with a frequency of 50Hz to 1000Hz. This stimulation current has a wide frequency coverage, and users can select different frequencies of electrical pulses as needed. In some specific embodiments, the frequency of the stimulation current can be set to 50Hz, 100Hz, 200Hz, 300Hz, 400Hz, 500Hz, 600Hz, 700Hz, 800Hz, 900Hz, 1000Hz, etc., and this application does not impose any limitations on this.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A vagus nerve stimulation device, characterized in that, include: The device includes a handle (10), two sets of stimulation components, and a control module (50). Each set of stimulation components includes a conductive massage head (20), which is rotatably disposed at one end of the handle (10). The control module (50) is disposed inside the handle (10) and electrically connected to the conductive massage head (20). The control module (50) can transmit stimulation current to the vagus nerve in the neck of the human body through the conductive massage head (20).

2. The vagus nerve stimulation device of claim 1, wherein, The conductive massage head (20) is configured to be able to rotate passively under the action of an external force applied thereto.

3. The vagus nerve stimulation device of claim 1, wherein, The stimulation component also includes a drive member, which is driven to the conductive massage head (20) for driving the conductive massage head (20) to rotate actively. The drive member is electrically connected to the control module (50) for controlling the action of the drive member through the control module (50).

4. The vagus nerve stimulation device of claim 1, wherein, Each set of stimulation components also includes a mounting post (30), one end of which is fixedly connected to one end of the handle (10), and the other end of which extends out of the handle (10). The conductive massage head (20) is sleeved on the mounting post (30) extending out of the handle (10), and the conductive massage head (20) is rotatable around the central axis of the mounting post (30).

5. The vagus nerve stimulation device of claim 4, wherein, The mounting post (30) is configured as an electrode post, one end of which is electrically connected to the control module (50), and the other end of which is in conductive contact with the conductive massage head (20).

6. The vagus nerve stimulation device of claim 4, wherein, The conductive massage head (20) is electrically connected to the control module (50) through an electrical connection mechanism, which is a brush or a conductive slip ring.

7. The vagus nerve stimulation device of claim 4, wherein, Each of the stimulation components further includes a bushing (40), which is rotatably fitted on the outer periphery of the mounting post (30), and the conductive massage head (20) is fitted on the outside of the bushing (40) and fixedly connected to the bushing (40).

8. The vagus nerve stimulation device of claim 7, wherein, The mounting post (30) has a first limiting part (31) and a second limiting part (32) spaced apart on its outer periphery. The two ends of the bushing (40) are restricted between the first limiting part (31) and the second limiting part (32). At least one of the first limiting part (31) and the second limiting part (32) is detachably connected to the mounting post.

9. The vagus nerve stimulation device of claim 8, wherein, The first limiting part (31) is a boss provided on the surface of the mounting post (30), and the surface of the mounting post (30) is provided with an annular groove (321). The second limiting part (32) is a retaining ring connected to the annular groove (321).

10. The vagus nerve stimulation device of claim 7, wherein, The bushing (40) is an insulating component.

11. The vagus nerve stimulation device of claim 7, wherein, The conductive massage head (20) is provided with a receiving groove (21), and the conductive massage head (20) is sleeved on the outside of the bushing (40) through the receiving groove (21). The outer surface of the bushing (40) is provided with a buckle (41), and the inner wall of the receiving groove (21) is provided with a slot (22). The buckle (41) and the slot (22) cooperate to fix the bushing (40) and the conductive massage head (20).

12. The vagus nerve stimulation device of claim 11, wherein, The bushing (40) has a U-shaped hollow hole (42) on its side wall, and an elastic arm (43) is formed inside the U-shaped hollow hole (42). The buckle (41) is located at the free end of the elastic arm (43).

13. The vagus nerve stimulation device of claim 4, wherein, The handle (10) has a mounting part (11) at one end, the mounting part (11) has a mounting cavity (12), and the mounting cavity (12) has a first opening (121) facing the outside of the handle (10). One end of the mounting post (30) is provided with a mating part (33), the mounting post (30) passes through the first opening (121), and the mating part (33) is housed in the mounting cavity (12) to fix the mounting post (30) to the mounting part (11).

14. The vagus nerve stimulation device according to claim 13, characterized in that, The mounting post (30) is configured as an electrode post, and the mounting cavity (12) also has a second opening (122), which is connected to the internal cavity of the handle (10). The mounting post (30) is also provided with a connecting part (34), which passes through the second opening (122). The control module (50) is installed in the internal cavity of the handle (10), and the connecting part (34) is electrically connected to the control module (50) via a wire (90).

15. The vagus nerve stimulation device of claim 14, wherein, The mounting part (11) includes a first part (111) and a second part (112). One of the first part (111) and the second part (112) is fixedly connected to the handle (10). The first part (111) and the second part (112) are detachably connected. The first part (111) and the second part (112) enclose the mounting cavity (12). The first opening (121) is located in the first part (111), and the second opening (122) is located in the second part (112).

16. The vagus nerve stimulation device of claim 15, wherein, The second part (112) is integrally formed on the handle (10) and located inside the handle (10), the first part (111) is configured as an end cap located outside the handle (10), and the first part (111) and the second part (112) are threaded together.

17. The vagus nerve stimulation device of claim 13, wherein, The cross-section of the mounting cavity (12) is non-circular, and the shape of the mating part (33) is adapted to the shape of the mounting cavity (12).

18. The vagus nerve stimulation device of any of claims 1-17, wherein, The conductive massage head (20) is spherical, ellipsoidal, oval or teardrop-shaped.

19. The vagus nerve stimulation device of any one of claims 1-17, wherein, The stimulation current is an electrical pulse with a frequency of 50Hz to 1000Hz.

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