Ear electrical stimulation head and ear vagus nerve stimulator

Abstract

The utility model relates to an ear electrical stimulation head, which comprises a deformable base body. The conductive sleeve is arranged outside the base body in a wrapping manner, and is deformable and conductive; and the telescopic mechanism is arranged in the base body, is connected with the end part of the conductive sleeve, and can drive the conductive sleeve to stretch and deform. The ear electrical stimulation head is better in deformation and adaptability, not only improves the wearing comfort, but also improves the stimulation effect, and avoids the problem of single-point stabbing pain caused by poor fitting degree. The utility model further relates to an ear vagus nerve stimulator which comprises the ear electrical stimulation head, a driving mechanism and a control circuit board, the driving mechanism is in electrical signal connection with the control circuit board, the driving mechanism is connected with the telescopic mechanism, and the conductive sleeve is in electrical signal connection with the control circuit board. When the ear vagus nerve stimulator applying the ear electrical stimulation head is used, the ear cavity sizes of different users can be met through large deformation, and meanwhile the wearing comfort and the stable and comfortable stimulation effect are achieved.

Description

Technical Field

[0001] The utility model relates to an ear electrical stimulation head and also relates to an ear vagus nerve stimulator using the electrical stimulation head. Background Art

[0002] Among the twelve cranial nerves, the vagus nerve is considered to be a unique and simple visceral nerve. It is the most widely distributed in the body and is connected to and affects our nervous system. When it is stimulated, it will feed back signals to the central nervous system such as the hippocampus and cingulate gyrus, making the parasympathetic nerves excited and the sympathetic nerves inhibited, thus affecting the physical and mental state of the human body and relaxing it.

[0003] The Chinese invention patent "Integrated Silicone Rubber Ear Electrode for Vagus Nerve Stimulator" with the authorization announcement number CN105056384B (application number 201510492785.3) discloses an ear electrode, which has an earplug and an auricle made of conductive silicone rubber and a seat made of silicone rubber, the earplug is a plug structure matching the human ear canal opening, the auricle is a columnar body and its similar shape or a spherical body and its similar shape in contact with the human auricle, and the earplug and auricle are made of conductive silicone rubber material. The earplug and auricle rely on the elastic deformation of the conductive silicone rubber material to meet the adaptability of different ear shapes and sizes. However, the elastic deformation of the conductive silicone rubber material is very limited, that is, the earplug and auricle structure in the integrated silicone rubber ear electrode are relatively stable, and the size and shape of each person's concha cavity vary greatly. If the human concha cavity is larger than the volume of the electrode, it will cause a small contact area, thereby affecting the efficiency of vagus electrical stimulation of the ear. If the human concha cavity is smaller than the electrode, it will cause the problem of wearing too tight and poor comfort. However, the elastic deformation of conductive silicone rubber materials is very limited, and the ear electrodes of this structure are not well adapted to the human auricle, which can cause poor comfort, incomplete contact, and reduced electrical stimulation efficiency. Utility Model Content

[0004] The first technical problem to be solved by the present invention is to provide an ear electrical stimulation head which can increase the deformation amount and thus better adapt to the ear cavities of different users in view of the above-mentioned prior art.

[0005] The second technical problem to be solved by the present invention is to provide an ear vagus nerve stimulator using the above-mentioned ear electrical stimulation head in view of the above-mentioned prior art.

[0006] The utility model solves the above-mentioned first technical problem by adopting a technical solution: an ear electrical stimulation head, characterized in that: it comprises:

[0007] substrate, deformable;

[0008] The conductive sleeve is wrapped and arranged outside the base, and is deformable and conductive;

[0009] The telescopic mechanism is arranged in the base body and connected to the end of the conductive sleeve, and can drive the conductive sleeve to telescope and deform.

[0010] Preferably, the conductive sleeve is a conductive silicone sleeve or a conductive sponge sleeve.

[0011] Preferably, the conductive sleeve is cylindrical.

[0012] The structure is simple. The telescopic mechanism comprises a cylinder and a screw rod screwed in the cylinder. The blind end of the cylinder is connected to the first end of the conductive sleeve, and the outer end of the screw rod is connected to the second end of the conductive sleeve.

[0013] In order to strengthen the radial expansion and contraction drive of the base, a boss is provided on the outer wall of the cylinder along the circumferential direction, and the boss abuts against the inner wall of the base to drive the base to expand and contract radially.

[0014] The structure is simple, and the base is a cylindrical shell with an opening facing the first end of the conductive sleeve.

[0015] In order to effectively realize radial expansion and contraction deformation of the base body while ensuring the basic shape of the base body, at least two slits extending in the axial direction are formed on the side wall of the base body along the circumferential direction.

[0016] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: an ear vagus nerve stimulator, characterized in that it includes the ear electrical stimulation head as mentioned above, and also includes a driving mechanism and a control circuit board, the driving mechanism is connected to the control circuit board by electrical signals, the driving mechanism is connected to the telescopic mechanism, and the conductive sleeve is connected to the control circuit board by electrical signals.

[0017] Preferably, the driving mechanism is connected to the screw in the aforementioned ear electrical stimulation head.

[0018] Preferably, a power supply module is provided on the control circuit board, and the power supply module is electrically connected to the conductive sleeve through an electric wire.

[0019] Compared with the prior art, the advantages of the present invention are: after the user wears the ear electrical stimulation head of the present invention, the telescopic mechanism can drive the conductive sleeve to achieve telescopic deformation, and correspondingly drive the base to achieve telescopic deformation, so as to achieve deformation of the conductive sleeve in both length and width directions. The telescopic mechanism can greatly increase the deformation of the base and the conductive sleeve, and has better adaptability to the ear cavities of different sizes of different users, so that the ear electrical stimulation head can better adapt to the user's ear cavity, which not only improves the wearing comfort, but also ensures the fit between the ear electrical stimulation head and the skin in the ear cavity, improves the stimulation effect, and avoids the single-point tingling problem caused by poor fit.

[0020] The ear vagus nerve stimulator using the ear electrical stimulation head can adapt to the ear cavity size of different users through a larger deformation when in use, while ensuring the wearing comfort and stable and comfortable stimulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereoscopic diagram of the ear electrical stimulation head in the extended state in an embodiment of the utility model.

[0022] Figure 2 for Figure 1 sectional view of .

[0023] Figure 3 It is a stereoscopic diagram of the ear electrical stimulation head in a retracted state in an embodiment of the present utility model.

[0024] Figure 4 for Figure 3 sectional view of . DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] like Figures 1 to 4 As shown, the ear electrical stimulation head in this embodiment includes a deformable base 1, a conductive sleeve 2 wrapped around the base 1, and a telescopic mechanism 3 arranged inside the base 1.

[0027] The base 1 is deformable but can maintain its basic shape. The electrical stimulation head used in the ear cavity is usually a columnar structure, so the base 1 can maintain a basic columnar structure in appearance, and can deform to the required amount based on the following expansion and contraction process.

[0028] The conductive sleeve 2 is deformable and conductive. The conductive sleeve 2 in this embodiment is a conductive silicone sleeve or a conductive sponge sleeve. The deformation of the conductive sponge sleeve and the conductive silicone sleeve is very limited without external force, especially the deformation of the conductive silicone sleeve. However, in this embodiment, the telescopic mechanism 3 is connected to the end of the conductive sleeve 2. Based on the telescopic action of the telescopic mechanism 3, the conductive sleeve 2 can be driven to telescopically deform, thereby generating a larger deformation. The driving deformation amount of the conductive silicone sleeve or the conductive sponge sleeve is specifically designed according to the required deformation amount. The conductive sleeve 2 in this embodiment is cylindrical in appearance.

[0029] The telescopic mechanism 3 can adopt various structures that can realize telescopic drive in the prior art, but in order to ensure the support for the ear electrical stimulation head to form its basic form, the telescopic mechanism 3 in this embodiment includes a cylinder 31 and a screw rod 32 screwed into the cylinder 31. The cylinder 31 forms a support inside the base 1 to ensure the overall columnar shape of the ear electrical stimulation head. The blind end of the cylinder 31 is connected to the first end of the conductive sleeve 2, and the outer end of the screw rod 32 is connected to the second end of the conductive sleeve 2. When the telescopic mechanism 3 is telescopically driven, it drives the conductive sleeve 2 to shorten and lengthen, and correspondingly drives the base 1 to undergo matching deformation inside the conductive sleeve 2. When the conductive sleeve 2 shortens, it squeezes the base 1 to expand outward, thereby increasing the overall diameter of the ear electrical stimulation head. The ear electrical stimulation head in this form is suitable for being worn in the ears of users with a larger space in the ear cavity area. When the conductive sleeve 2 is extended, the corresponding base 1 is also stretched inside the conductive sleeve 2, thereby reducing the overall diameter of the ear electrical stimulation head. The ear electrical stimulation head in this form is suitable for wearing in the ears of users with a small space in the ear cavity area. The amount of telescopic deformation driven by the telescopic mechanism 3 to drive the conductive sleeve 2 is specifically determined based on the ear cavity space.

[0030] In addition, in order to strengthen the radial expansion and contraction drive of the base 1, a boss 311 is provided on the outer wall of the cylinder 31 along the circumferential direction. The boss 311 abuts against the inner wall of the base 1 to drive the base 1 to expand and contract radially. Through the action of the boss 311, the radial deformation of the base 1 can be expanded. In order to avoid that the base 1 has a large deformation only at the position of the boss 311, and the deformation at other positions cannot be well transitioned, the base 1 in this embodiment is a cylindrical shell facing the first end opening of the conductive sleeve 2, and the bottom of the shell opposite to the opening is fixed to the second end of the conductive sleeve 2 through the screw 32. The side wall of the base 1 is provided with at least two slits 11 extending in the axial direction along the circumferential direction, and the side wall of the base 1 is divided into multiple sheet structures based on these slits 11. The mechanism can be made of a deformable material such as plastic that can maintain a basic shape, so that each sheet structure can maintain a basic cylindrical structure under the wrapping effect of the conductive sleeve 2. In this embodiment, the axial length of the shell is shorter than the axial length of the conductive sleeve 2, and the portion of the conductive sleeve 2 shorter than the length of the conductive sleeve 2 is supported by the cylinder 31 in the telescopic mechanism 3. As the cylinder 31 in the telescopic mechanism 3 moves in the axial direction, the shell as the base 1 is driven to expand radially outward or retract, so that the ear electrical stimulation head becomes thicker or thinner as a whole, thereby meeting the user's ear cavity space requirements and improving the adaptability when worn.

[0031] The utility model also relates to an ear vagus nerve stimulator, comprising the ear electrical stimulation head as described above, as well as a driving mechanism and a control circuit board, wherein the driving mechanism is connected to the control circuit board by electrical signals, the driving mechanism is connected to the telescopic mechanism 3, and the conductive sleeve 2 is connected to the control circuit board by electrical signals.

[0032] Among them, the driving mechanism can adopt various driving mechanisms in the prior art, such as a motor, etc. The driving mechanism is connected to the screw rod 32 in the aforementioned ear electrical stimulation head, and can then drive the screw rod 32 to rotate to achieve the telescopic action. A power supply module is provided on the control circuit board, and the power supply module is electrically connected to the conductive sleeve 2 through wires. The power supply module also provides the conductive sleeve 2 with a corresponding stimulation voltage according to the control command of the control chip on the control circuit board to achieve stimulation of the user's ear cavity.

[0033] When the ear electrical stimulation head is in use, the initial state of the ear electrical stimulation head is the thinnest state. After the ear electrical stimulation head is worn in the concha cavity, the stimulation switch is turned on to activate the conductive sleeve 2 of the ear electrical stimulation head. The control screw rod 32 starts to perform a contraction movement, gradually radially lifting the base 1, so that the ear electrical stimulation head becomes thicker as a whole, and the ear electrical stimulation head gradually becomes tighter in the concha cavity. In this process, the current of the screw rod 32 is monitored in real time. When the current is greater than a certain threshold, the movement of the screw rod 32 is controlled at this time. Then normal electrical stimulation work is carried out. When the ear vagus electrical stimulation work is completed, the ear electrical stimulation head is automatically restored to the initial state.

[0034] After the user wears the ear electrical stimulation head of the utility model, the telescopic mechanism 3 can drive the conductive sleeve 2 to achieve telescopic deformation, and correspondingly drive the base 1 to achieve telescopic deformation, so as to achieve deformation of the conductive sleeve 2 in both length and width directions. The telescopic mechanism 3 can greatly increase the deformation of the base 1 and the conductive sleeve 2, and has better adaptability to the ear cavities of different sizes of different users, so that the ear electrical stimulation head can better adapt to the user's ear cavity, which not only improves the wearing comfort, but also ensures the fit between the ear electrical stimulation head and the skin in the ear cavity, improves the stimulation effect, and avoids the single-point tingling problem caused by poor fit.

[0035] The ear vagus nerve stimulator using the ear electrical stimulation head can adapt to the ear cavity size of different users through a larger deformation when in use, while ensuring the wearing comfort and stable and comfortable stimulation effect.

[0036] In the specification and claims of the present utility model, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. An ear electrical stimulation head, characterized in that: include A base (1) is deformable; A conductive sleeve (2) is wrapped around the base (1) and is deformable and conductive; The telescopic mechanism (3) is arranged in the base body (1) and connected to the end of the conductive sleeve (2), and can drive the conductive sleeve (2) to telescope and deform.

2. The ear electrical stimulation head according to claim 1, characterized in that: The conductive sleeve (2) is a conductive silicone sleeve or a conductive sponge sleeve.

3. The ear electrical stimulation head according to claim 1, characterized in that: The conductive sleeve (2) is cylindrical.

4. The ear electrical stimulation head according to any one of claims 1 to 3, characterized in that: The telescopic mechanism (3) comprises a cylinder (31) and a screw rod (32) screwed into the cylinder (31), the blind end of the cylinder (31) being connected to the first end of the conductive sleeve (2), and the outer end of the screw rod (32) being connected to the second end of the conductive sleeve (2).

5. The ear electrical stimulation head according to claim 4, characterized in that: A boss (311) is provided on the outer wall of the cylinder (31) along the circumferential direction, and the boss (311) abuts against the inner wall of the base (1) to drive the base (1) to radially expand and contract.

6. The ear electrical stimulation head according to claim 5, characterized in that: The base body (1) is a cylindrical shell with a first end opening facing the conductive sleeve (2).

7. The ear electrical stimulation head according to claim 6, characterized in that: The side wall of the base body (1) is provided with at least two slits (11) extending in the axial direction in the circumferential direction.

8. An ear vagus nerve stimulator, characterized in that: It comprises the ear electrical stimulation head as described in any one of claims 1 to 7, and also comprises a driving mechanism and a control circuit board, wherein the driving mechanism is electrically connected to the control circuit board, the driving mechanism is connected to the telescopic mechanism (3), and the conductive sleeve (2) is electrically connected to the control circuit board.

9. The ear vagus nerve stimulator according to claim 8, characterized in that: The telescopic mechanism (3) comprises a cylinder (31) and a screw rod (32) screwed into the cylinder (31); the blind end of the cylinder (31) is connected to the first end of the conductive sleeve (2); the outer end of the screw rod (32) is connected to the second end of the conductive sleeve (2); and the driving mechanism is connected to the screw rod (32).

10. The ear vagus nerve stimulator according to claim 8, characterized in that: A power supply module is provided on the control circuit board, and the power supply module is electrically connected to the conductive sleeve (2) via an electric wire.

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