Vagus nerve stimulation device

Abstract

The invention relates to a vagus nerve stimulation device which comprises a shell, at least two electrodes, conductive assemblies and a control module, the at least two electrodes are rotatably arranged at one end of the shell, the control module is arranged in the shell, and each electrode is electrically connected with the control module through one conductive assembly so as to output stimulation current through the electrode. The conductive assembly is provided with a rotatable conductive movable part, and the electrode is in contact with the conductive movable part. According to the vagus nerve stimulation device provided by the invention, when the electrode is used for searching the vagus nerve on the human skin, the electrode can roll on the human skin, so that the friction force on the human skin can be reduced. And the conductive assembly is provided with the rotatable conductive movable part, so that the friction force between the electrode and the conductive movable part can be reduced, the electrode is enabled to rotate more easily when moving on the skin of the human body, the friction force between the electrode and the skin during use is further reduced, and the use comfort of the vagus nerve stimulation device is improved.

Description

Technical Field

[0001] This application relates to the field of medical device 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, the electrodes for stimulating the skin in vagus nerve stimulation devices for stimulating the neck are usually fixed structures. When locating the vagus nerve in the neck, they will generate a lot of friction with the skin, resulting in poor comfort. Summary of the Invention

[0005] Therefore, it is necessary to provide a vagus nerve stimulation device to solve the technical problem of high friction between the electrodes and the skin during use.

[0006] This application provides a vagus nerve stimulation device, comprising: a housing, at least two electrodes, a conductive component, and a control module. The at least two electrodes are rotatably disposed at one end of the housing, and the control module is disposed inside the housing. Each electrode is electrically connected to the control module through a conductive component to output a stimulation current. The conductive component has a rotatable conductive movable part, and the electrode is in contact with the conductive movable part.

[0007] In one embodiment, the electrode is a rotating body, with part of the electrode hidden inside the housing and part of it exposed outside the housing.

[0008] In one embodiment, the electrode is configured as a sphere, which is rotatable about an axis or is omnidirectionally rotatable.

[0009] In one embodiment, a limiting component is also included, which is used to limit the installation position of the electrode.

[0010] In one embodiment, the limiting components are configured as two sets, with each set of limiting components restricting the electrode from detaching from the housing from opposite sides of the electrode.

[0011] In one embodiment, at least one set of the limiting components includes a plurality of spaced-apart limiting protrusions that abut against the outer surface of the electrode.

[0012] In one embodiment, at least one set of the limiting components includes a limiting ring, a portion of which passes through and abuts against the limiting ring.

[0013] In one embodiment, at least one set of the limiting components includes a limiting plate that abuts against one end of the electrode.

[0014] In one embodiment, the limiting member includes a limiting cavity, and the electrode is constrained at least in the middle of the limiting cavity.

[0015] In one embodiment, the limiting member includes a limiting through hole at one end of the housing, a portion of the electrode protruding from the limiting through hole and another portion being confined within the housing by the limiting through hole.

[0016] In one embodiment, the limiting component further includes a support member disposed within the housing, the support member having a receiving groove recessed in a direction away from the limiting through hole corresponding to the limiting through hole, and a portion of the electrode being received in the receiving groove.

[0017] In one embodiment, the conductive component further includes a conductive base fixed within the housing, the conductive base being electrically connected to the control module, and the conductive movable part being rotatably disposed on the conductive base and in conductive contact with the conductive base.

[0018] In one embodiment, the conductive base is mounted on the side wall of the receiving groove, and a portion of the conductive movable part protrudes from the conductive base toward the receiving groove. The portion of the conductive movable part protruding from the conductive base abuts against the outer surface of the electrode, so that the electrode and the side wall of the receiving groove are spaced apart.

[0019] In one embodiment, the sidewall of the receiving groove is provided with a mounting hole, and the conductive base is installed in the mounting hole.

[0020] In one embodiment, the mounting hole has a guide opening at one end facing the receiving groove, and the guide opening expands from the mounting hole toward the receiving groove.

[0021] In one embodiment, one end of the conductive base is provided with a stop rib, which stops the guide opening to prevent the conductive base from coming out of the end of the mounting hole away from the receiving groove.

[0022] In one embodiment, the inner wall of the mounting hole protrudes and extends in a direction away from the receiving groove to form an extension rib.

[0023] In one embodiment, each of the receiving slots is provided with at least three of the conductive components, and the at least three conductive components are arranged at circumferential intervals along the receiving slot.

[0024] In one embodiment, the housing includes a bottom shell and an end cap, the end cap being connected to one end of the bottom shell, the limiting through hole being provided on the end cap, the support member being provided between the end cap and the bottom shell, and the control module being installed inside the bottom shell.

[0025] In one embodiment, the end face of the end cap is provided with a limiting rib, the limiting through hole penetrates the limiting rib, and the inner wall of the limiting through hole tapers from one end near the inner side of the end cap to one end near the outer side of the end cap so as to fit with the electrode.

[0026] In one embodiment, the vagus nerve stimulation device further includes a control component electrically connected to the control module for inputting control signals to the control module. The control component includes at least one of a button, a push button, a knob, and a wireless control module.

[0027] In one embodiment, the housing also contains a battery for powering the control module.

[0028] In one embodiment, the electrode is a metal part or a conductive silicone part.

[0029] In one embodiment, the conductive moving part is a conductive ball.

[0030] Compared with existing technologies, the vagus nerve stimulation device provided in this application has electrodes that are rotatably mounted on the housing. When locating the vagus nerve on human skin, the electrodes can roll on the skin, thereby reducing friction. Furthermore, because the conductive component has a rotatable conductive movable part, the contact between the electrode and the conductive movable part reduces friction between them, making it easier for the electrode to rotate when moving on the skin. This further reduces friction between the electrode and the skin during use, thus improving the comfort of using the vagus nerve stimulation device. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a perspective view of a vagus nerve stimulation device according to an embodiment of this application;

[0033] Figure 2 This is an exploded view of a vagus nerve stimulation device according to an embodiment of this application;

[0034] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0035] Figure 4 This is a cross-sectional view of a vagus nerve stimulation device according to an embodiment of this application;

[0036] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0037] Figure 6 for Figure 4 A magnified view of a section at point C;

[0038] Figure 7 This is a top view of a support member according to an embodiment of this application;

[0039] Figure 8 This is a side view of a vagus nerve stimulation device according to another embodiment of this application;

[0040] Figure 9 for Figure 8 Top view of the vagus nerve stimulation device shown;

[0041] Figure 10 This is a side view of a vagus nerve stimulation device according to another embodiment of this application;

[0042] Figure 11 for Figure 10 Top view of the vagus nerve stimulation device shown;

[0043] Figure 12 This is a cross-sectional view of a vagus nerve stimulation device according to another embodiment of this application.

[0044] Reference numerals: 10, housing; 11, bottom shell; 12, end cap; 121, limiting through hole; 122, limiting rib; 20, electrode; 30, conductive component; 31, conductive base; 311, stop rib; 32, conductive moving part; 40, control module; 50, battery; 60, support member; 61, receiving groove; 62, mounting hole; 63, guide opening; 64, extension rib; 70, control component; 80, power switch; 90, wire; 100, limiting component; 101, limiting protrusion; 1011, connecting rod; 102, limiting ring; 1021, support rib; 103, limiting cavity; 1031, mounting part. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] Please see Figures 1 to 7 This application provides a vagus nerve stimulation device suitable for stimulating the vagus nerve in the neck. The vagus nerve stimulation device includes: a housing 10, at least two electrodes 20, a conductive component 30, and a control module 40. At least two electrodes 20 are disposed at one end of the housing 10, and the control module 40 is disposed within the housing 10. Each electrode 20 is electrically connected to the control module 40 through a conductive component 30 to output a stimulation current. Thus, the control module 40 sends an electrical signal, and the at least two electrodes 20 act as a conductive anode and cathode. When in contact with human skin, an electrical stimulation circuit is formed through the skin, thereby stimulating the surface of the human skin with the current.

[0051] In this application, at least two electrodes 20 are rotatably disposed at one end of the housing 10 so that the electrodes 20 can contact human skin. Since the electrodes 20 are rotatable, when using the electrodes 20 to search for the vagus nerve on human skin, the electrodes 20 can roll on human skin, thereby reducing the friction on human skin.

[0052] The conductive component 30 has a rotatable conductive movable part 32, and the electrode 20 is in contact with the conductive movable part 32. In this way, the friction between the electrode 20 and the conductive movable part 32 can be reduced, making it easier for the electrode 20 to rotate when moving on human skin, thereby reducing the friction between the electrode 20 and the skin during use and improving the comfort of using the vagus nerve stimulation device.

[0053] In this embodiment, two electrodes 20 are used, serving as the anode and cathode of the circuit, respectively. A single current loop is formed after the electrodes 20 come into contact with human skin. However, this is not a limitation. In other embodiments, the number of electrodes 20 can be three or more. Accordingly, one or more electrodes 20 serve as the anode of the circuit, while the remaining electrodes 20 serve as the cathode. Multiple circuit loops are formed after the electrodes 20 come into contact with human skin. Schematically, four electrodes 20 can be used, with two electrodes 20 serving as the anode and the other two as the cathode. The two anodes and two cathodes correspond one-to-one, forming two current loops after the electrodes 20 come into contact with human skin, thus creating different current stimuli. The number of electrodes 20 can also be other numbers, which will not be elaborated here, as long as at least one current loop is formed after the electrodes 20 come into contact with human skin.

[0054] Furthermore, the electrode 20 is a metal part or a conductive silicone part, so that the current is output to the human skin through the electrode 20, thereby stimulating the human skin.

[0055] Furthermore, the electrode 20 is a rotating body, partially hidden inside the housing 10 and partially exposed outside the housing 10. This rotating nature of the electrode 20 facilitates rolling on the skin, reducing friction between the electrode 20 and the skin during use. The rolling electrode 20 also provides a massage effect, thus improving the comfort of using the vagus nerve stimulation device.

[0056] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, electrode 20 is configured as a sphere. In this embodiment, the sphere is omnidirectionally rotatable, allowing electrode 20 to rotate in any direction within three-dimensional space, thus enabling more flexible rolling during use. However, this is not a limitation; in other embodiments, the sphere can also be configured to rotate around an axis, allowing it to roll on the skin as well. By configuring electrode 20 as a sphere, this embodiment utilizes rolling to locate the anatomical position of the vagus nerve in the neck, significantly reducing friction between the electrode 20 and the skin, and improving user comfort. The rolling sphere also provides a massage effect, allowing the vagus nerve stimulation device to massage the skin while stimulating the vagus nerve. It is understood that by rolling electrode 20 on the skin surface, the vagus nerve stimulation device can also be used as a massager in the off state.

[0057] In this embodiment, the electrode 20 is set to a spherical shape, but it is not limited to this. In other embodiments, the electrode 20 may also be set to an ellipsoidal shape, an oval shape, or a teardrop shape. This application does not limit this.

[0058] Furthermore, the vagus nerve stimulation device also includes a limiting component 100, which limits the installation position of the electrode 20, thereby ensuring that the electrode 20 will not fall off the housing 10.

[0059] Furthermore, the limiting components 100 can be configured as two sets, with the two sets of limiting components 100 respectively restricting the ball from detaching from the housing 10 from opposite sides of the electrode 20. It can be understood that by providing two sets of limiting components 100, the electrode 20 can be stopped and limited from opposite sides, thereby preventing the ball from detaching from the housing 10. It is worth mentioning that the opposite sides of the electrode 20 can be the upper and lower sides, the left and right sides, or the front and back sides, as long as the two sets of limiting components 100 cooperate to restrict the electrode 20 to the installation position and prevent it from detaching from the housing 10; this application does not impose any restrictions on this.

[0060] Please see Figure 8 and Figure 9 In one embodiment, at least one set of limiting components 100 includes a plurality of spaced-apart limiting protrusions 101, which abut against the outer surface of the electrode 20. Thus, the limiting component 100 has a very simple structure and a small contact area with the electrode 20, minimizing its impact on the rotation of the electrode 20. In this embodiment, three limiting protrusions 101 are provided, which ensures effective limiting of the electrode 20 while maintaining a small contact area. Of course, in other embodiments, the limiting protrusions 101 can be four, five, or other numbers.

[0061] Furthermore, the surface in contact between the limiting protrusion 101 and the electrode 20 is set as a spherical surface. In this way, the friction between the limiting protrusion 101 and the electrode 20 is smaller, so that the electrode 20 can rotate more flexibly.

[0062] In this embodiment, the limiting protrusion 101 is disposed on the housing 10 via the connecting rod 1011. The limiting protrusion 101 and the connecting rod 1011 can be integrally formed, and this application does not impose any restrictions on this.

[0063] Please see Figure 10 and Figure 11 In one embodiment, at least one set of limiting components 100 includes a limiting ring 102, through which a portion of the electrode 20 passes and abuts against the limiting ring 102. Thus, the limiting component 100 also has a very simple structure, a small contact area with the electrode 20, minimal impact on the rotation of the electrode 20, and more reliable limiting of the electrode 20 by the limiting ring 102.

[0064] In this embodiment, the cross-sectional shape of the limiting ring 102 is circular. As a result, the contact area between the limiting ring 102 and the electrode 20 is smaller, and the friction between the limiting ring 102 and the electrode 20 is smaller, so that the electrode 20 can rotate more flexibly.

[0065] In this embodiment, the limiting ring 102 is disposed on the housing 10 by the supporting rib 1021. The limiting ring 102 and the supporting rib 1021 can be integrally formed, and this application does not limit this.

[0066] In other embodiments, at least one set of limiting members 100 includes a limiting plate (not shown) that abuts against one end of the electrode 20. Thus, the limiting plate can block the electrode 20, thereby preventing the electrode 20 from detaching from the housing 10.

[0067] Furthermore, the limiting plate can be a flat plate, an arc-shaped plate, or a spherical plate. This application does not limit this, as long as the limiting plate can block one side of the electrode 20 and prevent the electrode 20 from coming out of the housing 10 from that side.

[0068] It is understood that the two sets of limiting components 100 disposed on both sides of the electrode 20 may be the same or different. Indicatively, in one embodiment, both sets of limiting components 100 disposed on both sides of the electrode 20 include multiple limiting protrusions 101. In another embodiment, one set of limiting components 100 disposed on both sides of the electrode 20 includes multiple limiting protrusions 101, while the other set of limiting components 100 includes a limiting ring 102. This application does not impose limitations on this, as long as the two sets of limiting components 100 cooperate to limit the electrode 20 to a preset installation position. Furthermore, in other embodiments, only one set of limiting components 100 may be provided.

[0069] Please see Figure 12 In one embodiment, the limiting component 100 includes a limiting cavity 103, and the electrode 20 is constrained at least in the middle of the limiting cavity 103. Thus, only one limiting cavity 103 is needed to restrict the electrode 20 to the housing 10, making the structure simpler.

[0070] In this embodiment, one end of the housing 10 is provided with a mounting portion 1031, and a limiting cavity 103 is formed on the mounting portion 1031. The middle part of the electrode 20 is housed in the limiting cavity 103, and both ends of the electrode 20 protrude from the sides of the limiting cavity 103, facilitating contact between the electrode 20 and human skin. It can be understood that, in order to install the electrode 20 in the limiting cavity 103, the mounting portion 1031 can be configured as two detachable parts, each part having a groove. The grooves of the two parts face each other to enclose the limiting cavity 103, thus making it easy to install the electrode 20 in the limiting cavity 103. It is worth mentioning that the limiting cavity 103 can also be configured in conjunction with the aforementioned limiting protrusion 101, limiting ring 102, and limiting plate, as long as the limiting component 100 can restrict the electrode 20 to a preset installation position.

[0071] Please see Figures 1 to 7 In one embodiment, the limiting member 100 includes a limiting through hole 121 located at one end of the housing 10. A portion of the electrode 20 protrudes from the limiting through hole 121, while another portion is confined within the housing 10 by the limiting through hole 121. Thus, the limiting through hole 121 restricts the electrode 20 from disengaging from that side of the housing 10 without restricting its rotation. The portion of the electrode 20 protruding from the housing 10 can contact human skin, thereby stimulating or massaging the skin. It is understood that the diameter of the limiting through hole 121 is smaller than the diameter of the electrode 20, ensuring that the electrode 20 does not completely disengage from the limiting through hole 121 while allowing a portion to protrude from it.

[0072] Furthermore, the limiting component 100 also includes a support member 60 disposed within the housing 10. The support member 60 has a receiving groove 61 recessed in a direction away from the limiting through hole 121 corresponding to the limiting through hole 121, and a portion of the electrode 20 is received in the receiving groove 61. Thus, by providing the support member 60 and limiting the electrode 20 through the receiving groove 61, the installation position of the electrode 20 is restricted between the receiving groove 61 and the limiting through hole 121, ensuring that the electrode 20 can be rotatably installed on the housing 10.

[0073] It is understandable that since the electrode 20 can rotate omnidirectionally between the receiving groove 61 and the limiting through hole 121, the portion of the electrode 20 exposed from the limiting through hole 121 and the portion received in the receiving groove 61 can change. That is, the portion of the electrode 20 exposed from the limiting through hole 121 can be received in the receiving groove 61 after rotation, and similarly, the portion of the electrode 20 received in the receiving groove 61 can be exposed from the limiting through hole 121 after rotation.

[0074] Furthermore, the conductive component 30 also includes a conductive base 31 fixed within the housing 10. The conductive base 31 is electrically connected to the control module 40, and a conductive movable part 32 is rotatably disposed on the conductive base 31 and makes conductive contact with it. Thus, the conductive base 31 can be electrically connected to the control module 40 via a wire 90. Since the conductive base 31 is fixed within the housing 10, the rotation of the conductive movable part 32 will not affect the electrical connection between the conductive component 30 and the control module 40. Moreover, because the conductive movable part 32 makes conductive contact with the conductive base 31, stable current transmission is ensured, enabling the vagus nerve stimulation device to generate stable and continuous current stimulation on the human skin during use.

[0075] like Figure 4 and Figure 5 As shown, the conductive base 31 is mounted on the side wall of the receiving groove 61. A portion of the conductive movable part 32 protrudes from the conductive base 31 towards the receiving groove 61, and the exposed portion of the conductive movable part 32 abuts against the outer surface of the electrode 20, so that the electrode 20 and the side wall of the receiving groove 61 are spaced apart. This ensures that the electrode 20 and the support 60 do not contact each other, thereby reducing the rotational resistance of the electrode 20 and allowing it to rotate more smoothly when moving on human skin, thus reducing friction between the electrode 20 and the human skin. Simultaneously, the exposed portion of the conductive movable part 32 abuts against the outer surface of the electrode 20, ensuring that the conductive movable part 32 and the electrode 20 remain in contact when the electrode 20 rolls on the human skin surface to locate the vagus nerve, thereby ensuring the continuity and stability of current conduction.

[0076] Further, please see Figure 7 Each receiving groove 61 is provided with at least three conductive components 30, and the at least three conductive components 30 are arranged at circumferential intervals along the receiving groove 61. Thus, the conductive movable parts 32 of the at least three conductive components 30 can stably support the electrode 20. In this embodiment, each receiving groove 61 is provided with three conductive components 30. This allows the conductive components 30 to stably support the electrode 20. Simultaneously, the contact area between the electrode 20 and the conductive movable parts 32 of the conductive components 30 is small, ensuring low friction between them. Therefore, the electrode 20 can roll more smoothly on human skin, thereby reducing frictional damage to the skin.

[0077] In this embodiment, the conductive movable part 32 is a conductive ball, which enables rolling contact between the conductive movable part 32 and the electrode 20. This further reduces the friction between the electrode 20 and the conductive movable part 32, allowing for more flexible rotation of the electrode 20. This further reduces friction between the electrode 20 and the human skin, improving the user experience of the vagus nerve stimulation device. Furthermore, the conductive movable part 32 can rotate omnidirectionally relative to the conductive base 31, making the rotation of the electrode 20 more flexible and smooth.

[0078] Furthermore, both the conductive base 31 and the conductive movable part 32 are metal parts. The metal material ensures reliable electrical contact between the conductive base 31 and the conductive movable part 32, thereby ensuring normal current transmission.

[0079] Furthermore, the side wall of the receiving groove 61 is provided with a mounting hole 62, and the conductive base 31 is installed in the mounting hole 62. In this way, it is convenient to fix the conductive component 30 in the housing 10, and the conductive movable part 32 of the conductive component 30 can easily provide stable support for the electrode 20 housed in the receiving groove 61.

[0080] Furthermore, the control module 40 can be located inside the housing 10 on the side of the support 60 away from the limiting through hole 121. The conductive base 31 is installed in the mounting hole 62, facilitating the connection of the wire 90 between the conductive base 31 and the control module 40.

[0081] Furthermore, the mounting hole 62 has a guide opening 63 at one end facing the receiving groove 61, and the guide opening 63 expands from the mounting hole 62 into the receiving groove 61. In this way, by providing the guide opening 63, it is convenient to install the conductive base 31 from one side of the receiving groove 61 into the mounting hole 62.

[0082] Furthermore, one end of the conductive base 31 is provided with a stop rib 311, which stops at the guide opening 63 to prevent the conductive base 31 from coming out of the end of the mounting hole 62 away from the receiving groove 61. In this way, by providing the stop rib 311, the conductive base 31 can be prevented from coming out of the mounting hole 62 directly during installation, which greatly improves the assembly efficiency.

[0083] The conductive base 31 is fixed in the mounting hole 62 of the support member 60 in various ways. For example, the conductive base 31 and the mounting hole 62 can be configured as a tight fit; adhesive can be used between the conductive base 31 and the mounting hole 62 to stick the conductive base 31 into the mounting hole 62; a snap-fit ​​structure can be used to snap the conductive base 31 into the mounting hole 62; or fasteners can be used to connect the conductive base 31 and the support member 60. The conductive base 31 can be fixed in the mounting hole 62 in various ways, such as threaded fastening, interference assembly, etc., which will not be listed here.

[0084] Furthermore, the inner wall of the mounting hole 62 protrudes and extends in a direction away from the receiving groove 61 to form an extension rib 64. In this way, the provision of the extension rib 64 increases the contact area between the inner wall of the mounting hole 62 and the conductive base 31, which allows the conductive base 31 to be installed more stably in the mounting hole 62, thereby ensuring that the conductive movable part 32 stably supports the electrode 20.

[0085] like Figure 1 and Figure 2 As shown, the housing 10 includes a bottom shell 11 and an end cap 12. The end cap 12 is connected to one end of the bottom shell 11, and a limiting through hole 121 is provided on the end cap 12. A support member 60 is disposed between the end cap 12 and the bottom shell 11, and the control module 40 is installed inside the bottom shell 11. In this way, the support member 60 separates the electrode 20 and the control module 40, avoiding interference between the control module 40 and the electrode 20. At the same time, it facilitates the installation of components such as the support member 60, the control module 40, and the electrode 20 inside the housing 10.

[0086] like Figure 2 and Figure 4 As shown, the control module 40 is electrically connected to the conductive base 31 via wire 90. Since the control module 40 is installed inside the bottom shell 11, the arrangement of the wire 90 will not affect the rotation of the electrode 20.

[0087] Furthermore, the support member 60 is fixedly connected to at least one of the end cap 12 and the bottom shell 11. That is, the support member 60 can be fixedly connected to the bottom shell 11, the support member 60 can be fixedly connected to the end cap 12, or the support member 60 can be fixedly connected to both the end cap 12 and the bottom shell 11. In the embodiments where the support member 60 is fixedly connected to the bottom shell 11, or where the support member 60 is fixedly connected to both the end cap 12 and the bottom shell 11, during assembly, the control module 40 can be installed into the bottom shell 11 first, then the support member with the conductive component 30 installed can be connected to the bottom shell 11, then the electrode 20 can be placed into the receiving groove 61 of the support member 60, and finally the end cap 12 can be installed. In embodiments where the support member 60 and the end cap 12 are fixedly connected, and the support member 60, the end cap 12, and the bottom shell 11 are all fixedly connected, during assembly, the electrode 20 can be placed between the end cap 12 and the support member 60 first, then the support member 60 and the end cap 12 can be connected, and finally the end cap 12 can be installed on the bottom shell 11.

[0088] It is understood that the support member 60 may be completely disposed inside the housing 10 or partially exposed outside the housing 10. For example, the edge of the support member 60 may be clamped between the bottom shell 11 and the end cap 12. Accordingly, the connection between the end cap 12 and the bottom shell 11 may be a direct connection or an indirect connection. For example, the support member 60 may be connected to the bottom shell 11, and the end cap 12 may be connected to the support member 60.

[0089] The fixed connections between the support member 60 and the end cap 12, between the support member 60 and the bottom shell 11, and between the end cap 12 and the bottom shell 11 can be implemented in various ways, such as snap-fit ​​connections, fastener connections, adhesive connections, etc., and this application does not limit them. It is understood that the bottom shell 11, the end cap 12, and the support member 60 are all plastic parts to avoid leakage.

[0090] Further, please see Figure 6 The end cap 12 has a protruding limiting rib 122 on its end face, and a limiting through hole 121 passes through the limiting rib 122. The inner wall of the limiting through hole 121 tapers from one end near the inner side of the end cap 12 to one end near the outer side of the end cap 12 to fit against the electrode 20. Thus, the limiting through hole 121 can better limit the electrode 20, making it less likely for the electrode 20 to come out of the limiting through hole 121. At the same time, the limiting rib 122 increases the structural strength at the limiting through hole 121, making it less likely for the limiting through hole 121 to deform and cause the electrode 20 to come out. The control module 40 is configured as a control circuit board. Furthermore, a battery 50 is also provided inside the housing 10, which powers the control module 40. This battery 50 can be a lithium battery 50. Furthermore, a charging interface (not shown) can also be provided on the housing 10 to charge the battery 50, facilitating repeated charging and use of the battery 50.

[0091] Further, please see Figure 1 and Figure 2 The vagus nerve stimulation device also includes a control component 70, which is electrically connected to the control module 40 and is used to input control signals to the control module 40. 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.

[0092] Understandably, buttons, push knobs, or rotary knobs can be incorporated into the surface of the housing 10 for user convenience. The wireless control module can be located inside the housing 10. This module may include Bluetooth, Wi-Fi, or other wireless technologies, allowing users to control the current signal via a mobile phone connection.

[0093] In addition, a power switch 80 can be provided on the housing 10 to turn the vagus nerve stimulation device on and off.

[0094] 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.

[0095] 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 comprises a housing (10), at least two electrodes (20), a conductive component (30), and a control module (40). At least two of the electrodes (20) are rotatably disposed at one end of the housing (10). The control module (40) is disposed within the housing (10). Each electrode (20) is electrically connected to the control module (40) via a conductive component (30) to output a stimulation current. The conductive component (30) has a rotatable conductive movable part (32), and the electrode (20) is in contact with the conductive movable part (32).

2. The vagus nerve stimulation device according to claim 1, characterized in that, The electrode (20) is a rotating body, and part of the electrode (20) is hidden inside the housing (10) and part of it is exposed outside the housing (10).

3. The vagus nerve stimulation device according to claim 2, characterized in that, The electrode (20) is configured as a sphere, which can rotate about an axis or can rotate in all directions.

4. The vagus nerve stimulation device according to claim 2, characterized in that, It also includes a limiting component (100) for limiting the installation position of the electrode (20).

5. The vagus nerve stimulation device according to claim 4, characterized in that, The limiting components (100) are configured in two sets, and the two sets of limiting components (100) respectively restrict the electrode (20) from detaching from the housing (10) from the opposite sides of the electrode (20).

6. The vagus nerve stimulation device according to claim 5, characterized in that, At least one set of the limiting components (100) includes a plurality of spaced limiting protrusions (101) that abut against the outer surface of the electrode (20).

7. The vagus nerve stimulation device according to claim 5, characterized in that, At least one of the limiting components (100) includes a limiting ring (102), a portion of the electrode (20) passing through the limiting ring (102) and abutting against the limiting ring (102).

8. The vagus nerve stimulation device according to claim 5, characterized in that, At least one set of the limiting components (100) includes a limiting plate that abuts against one end of the electrode (20).

9. The vagus nerve stimulation device according to claim 4, characterized in that, The limiting component (100) includes a limiting cavity (103), and the electrode (20) is constrained at least in the middle of the limiting cavity (103).

10. The vagus nerve stimulation device according to claim 4, characterized in that, The limiting component (100) includes a limiting through hole (121) at one end of the housing (10), a portion of the electrode (20) protrudes from the limiting through hole (121), and another portion is restricted within the housing (10) by the limiting through hole (121).

11. The vagus nerve stimulation device according to claim 10, characterized in that, The limiting component (100) also includes a support member (60) disposed in the housing (10). The support member (60) has a receiving groove (61) recessed in a direction away from the limiting through hole (121) corresponding to the limiting through hole (121). A portion of the electrode (20) is received in the receiving groove (61).

12. The vagus nerve stimulation device according to claim 11, characterized in that, The conductive component (30) further includes a conductive base (31) fixed inside the housing (10), the conductive base (31) being electrically connected to the control module (40), and the conductive movable part (32) being rotatably disposed on the conductive base (31) and in conductive contact with the conductive base (31).

13. The vagus nerve stimulation device according to claim 12, characterized in that, The conductive base (31) is mounted on the side wall of the receiving groove (61). A portion of the conductive movable part (32) protrudes from the conductive base (31) toward the receiving groove (61). The portion of the conductive movable part (32) protruding from the conductive base (31) abuts against the outer surface of the electrode (20), so that the electrode (20) and the side wall of the receiving groove (61) are spaced apart.

14. The vagus nerve stimulation device according to claim 13, characterized in that, The side wall of the receiving groove (61) is provided with a mounting hole (62), and the conductive base (31) is installed in the mounting hole (62).

15. The vagus nerve stimulation device according to claim 14, characterized in that, The mounting hole (62) has a guide opening (63) at one end facing the receiving groove (61), and the guide opening (63) expands from the mounting hole (62) to the receiving groove (61).

16. The vagus nerve stimulation device according to claim 15, characterized in that, One end of the conductive base (31) is provided with a stop rib (311), which stops the guide opening (63) to prevent the conductive base (31) from coming out of the end of the mounting hole (62) away from the receiving groove (61).

17. The vagus nerve stimulation device according to claim 14, characterized in that, The inner wall of the mounting hole (62) protrudes and extends in a direction away from the receiving groove (61) to form an extension rib (64).

18. The vagus nerve stimulation device according to claim 13, characterized in that, Each of the receiving grooves (61) is provided with at least three of the conductive components (30), and the at least three conductive components (30) are arranged at circumferential intervals along the receiving grooves (61).

19. The vagus nerve stimulation device according to claim 11, characterized in that, The housing (10) includes a bottom shell (11) and an end cap (12). The end cap (12) is connected to one end of the bottom shell (11). The limiting through hole (121) is provided on the end cap (12). The support member (60) is provided between the end cap (12) and the bottom shell (11). The control module (40) is installed inside the bottom shell (11).

20. The vagus nerve stimulation device according to claim 19, characterized in that, The end face of the end cap (12) is provided with a limiting rib (122), the limiting through hole (121) penetrates the limiting rib (122), and the inner wall of the limiting through hole (121) is tapered from one end near the inner side of the end cap (12) to one end near the outer side of the end cap (12) so as to fit with the electrode (20).

21. The vagus nerve stimulation device according to claim 1, characterized in that, The vagus nerve stimulation device further includes a control component (70), which is electrically connected to the control module (40) and is used to input control signals to the control module (40). The control component (70) includes at least one of a button, a push button, a knob, and a wireless control module.

22. The vagus nerve stimulation device according to claim 1, characterized in that, The housing (10) is also equipped with a battery (50), which is used to power the control module (40).

23. The vagus nerve stimulation device according to any one of claims 1-22, characterized in that, The electrode (20) is a metal part or a conductive silicone part.

24. The vagus nerve stimulation device according to any one of claims 1-22, characterized in that, The conductive moving part (32) is a conductive ball.

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