High precision electrode for transcranial nerve stimulation

Abstract

The utility model provides a high-precision electrode for transcranial nerve stimulation, the high-precision electrode for transcranial nerve stimulation comprises an upper shell, a lower shell matched with the upper shell and an electrode, the bottom of the lower shell is provided with a cavity, the inner wall of the cavity is provided with a clamping groove, and the electrode is embedded in the clamping groove. The high-precision electrode for transcranial nerve stimulation has the advantages of being simple in structure, convenient to use, high in stimulation precision and obvious in stimulation effect.

Description

Technical Field

[0001] The present disclosure relates to an electrode, and more particularly to a high-precision electrode for transcranial nerve stimulation. Background Art

[0002] Cranial microcurrent stimulation (CES) is a completely different treatment method from traditional drug therapy and electroconvulsive therapy. It stimulates the brain with low-intensity microcurrents, changes abnormal brain waves in the patient's brain, and prompts the brain to secrete a series of neurotransmitters and hormones that are closely related to anxiety, depression, insomnia and other diseases, thereby achieving the treatment of these diseases. Compared with drug therapy, this treatment method has no side effects and stable efficacy, so it has been widely used in Europe, the United States and other countries as a safe and effective treatment for anxiety, depression, insomnia and related diseases.

[0003] Transcranial direct current stimulation (tDCS) is a non-invasive technique that uses constant, low-intensity direct current (1-2 mA) to regulate the activity of neurons in the cerebral cortex. tDCS has two different electrodes and their power supply battery devices, plus a control software to set the output of the stimulation type. There are three types of stimulation methods, namely, anodal stimulation, cathodal stimulation, and sham stimulation. Anodal stimulation usually enhances the excitability of neurons at the stimulation site, while cathodal stimulation reduces the excitability of neurons at the stimulation site. Sham stimulation is mostly used as a control stimulation. Unlike stimulation techniques such as transcranial electrical stimulation and transcranial magnetic stimulation, tDCS does not cause neuronal discharges through suprathreshold stimulation, but works by regulating the activity of neural networks. At the neuronal level, the basic mechanism of tDCS regulation of cortical excitability is to cause changes in resting membrane potential hyperpolarization or depolarization depending on the polarity of the stimulus. Anodal stimulation usually increases the excitability of the cortex, while cathodal stimulation reduces the excitability of the cortex. Membrane polarization is the main mechanism of tDCS action immediately after stimulation.

[0004] However, in addition to the immediate effect, tDCS also has a post-stimulation effect. If the stimulation time lasts long enough, the change in cortical excitability can last up to 1 hour after the stimulation ends. Therefore, its mechanism of action cannot be explained solely by the polarization of neuronal membrane potential. Further studies have confirmed that in addition to changing the polarity of membrane potential, tDCS can also regulate the microenvironment of synapses, such as changing the activity of NMDA receptors or GABA, thereby regulating synaptic plasticity. The after-effect mechanism of tDCS is similar to the long-term facilitation of synapses. Animal studies have found that a sustained increase in postsynaptic excitatory potentials can be observed when anodal stimulation is applied to the motor cortex. The regulation of cortical excitability depends on the level of membrane polarization during tDCS stimulation, and the after-effect after the stimulation ends is mainly due to the activity of synapses in the cortex.

[0005] tDCS can also modulate the excitability of remote cortical and subcortical areas. tDCS anodal stimulation of the premotor cortex can affect changes in the excitability of connected remote cortical areas. Stimulation of the left hemisphere M1 area not only affects the corticospinal circuits involved in generating motor evoked potentials, but also modulates transcallosal inhibition of the contralateral hemisphere through inhibitory interneurons.

[0006] However, the existing stimulation electrodes have a complex structure, are inconvenient for patients to use, and the stimulation effect is not very obvious. Utility Model Content

[0007] In order to overcome the problems of the prior art, the present disclosure provides a high-precision electrode for transcranial nerve stimulation, and its technical solution is as follows:

[0008] The present disclosure provides a high-precision electrode for transcranial nerve stimulation, comprising an upper shell, a lower shell matched with the upper shell, and an electrode. The bottom of the lower shell is provided with a cavity, the inner wall of the cavity is provided with a snap-in groove, and the electrode is embedded in the snap-in groove.

[0009] In one embodiment, a wire entry hole is provided on the side of the lower shell, the wire entry hole is communicated with the clamping groove, and the wire enters the cavity through the wire entry hole and is connected with the electrode provided in the clamping groove.

[0010] In one embodiment, the upper shell is provided with a connecting hole, and the lower shell is provided with a connecting column, and the upper shell is installed on the lower shell through the cooperation between the connecting hole and the connecting column.

[0011] In one embodiment, the inner surface of the connecting hole is provided with an internal thread, and the outer surface of the connecting column is provided with an external thread, and the upper shell is mounted on the lower shell through the cooperation of the external thread and the internal thread.

[0012] In one embodiment, a connection block is provided on the side of the lower shell, and the wire entry hole is provided on the connection block.

[0013] In one embodiment, a connecting post through hole is provided on the connecting post, an electrode through hole is provided on the electrode, and an inner diameter of the connecting post through hole is smaller than an inner diameter of the electrode through hole.

[0014] In one embodiment, at least one clamping block is disposed on the top of the upper shell, and the upper shell and the clamping block are integrally formed.

[0015] In one embodiment, an annular groove is provided between the clamping block and the top of the upper shell.

[0016] In one embodiment, a glue injection hole is provided on the top of the lower shell.

[0017] In one embodiment, the upper shell and the lower shell are both made of silicone, and a surface of the lower shell away from the upper shell is configured as a trumpet-shaped structure.

[0018] The implementation of this disclosure includes the following technical effects:

[0019] The present disclosure provides a high-precision electrode for transcranial nerve stimulation, which is configured to include an upper shell and a lower shell that cooperates with the upper shell, and an electrode is arranged on the lower shell, and a wire connected to the electrode is arranged, so that the stimulation current output by the electrical stimulation device is transmitted to the electrode through the wire, so as to electrically stimulate the patient's transcranial nerve through the electrode to achieve the purpose of treatment. When in use, the patient only needs to connect the upper shell of the transcranial nerve stimulation electrode to the target connector, which can be a head cover or a specially arranged electrode rack, and the lower shell is arranged close to the part to be stimulated on the patient's transcranial nerve, so that the electrode arranged on the lower shell can be in close contact with the part to be stimulated on the patient's transcranial nerve, so that the stimulation current transmitted by the wire can be quickly and accurately introduced to the part to be stimulated on the patient's transcranial nerve, so as to achieve the goal of treating the disease. It can be seen that the high-precision electrode for transcranial nerve stimulation in the present disclosure has the advantages of simple structure, easy use, high stimulation accuracy, and obvious stimulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the high-precision electrode for transcranial nerve stimulation in the present disclosure.

[0021] Figure 2 is a cross-sectional view of a high-precision electrode for transcranial nerve stimulation in the present disclosure.

[0022] Figure 3 Exploded view of a high-precision electrode for transcranial nerve stimulation in the present disclosure.

[0023] Figure 4 It is a schematic diagram of the structure of the lower shell of the high-precision electrode for transcranial nerve stimulation in the present disclosure.

[0024] In the figure, 1-upper shell, 2-lower shell, 3-electrode, 4-conducting wire, 11-connecting hole, 12-clamping block, 21-cavity, 22-clamping groove, 23-connecting column, 24-wire entry hole, 25-connecting block, 26-glue injection hole, 27-annular groove, 31-electrode through hole, 231-connecting column through hole. DETAILED DESCRIPTION

[0025] The present disclosure will be described in detail below in conjunction with the embodiments and drawings. It should be noted that the embodiments described are only intended to facilitate the understanding of the present disclosure and do not have any limiting effect on it. The directions described in this application, such as up, down, left, and right, are used for the convenience of describing with reference to the drawings and do not constitute a limitation on the scope of protection.

[0026] like Figures 1 to 3 As shown, a high-precision electrode for transcranial nerve stimulation provided by an embodiment of the present disclosure includes an upper shell 1, a lower shell 2 cooperating with the upper shell 1, and an electrode 3. A cavity 21 is provided at the bottom of the lower shell 1, and a snap-in groove 22 is provided on the inner wall of the cavity 21. The electrode 3 is embedded in the snap-in groove 22.

[0027] The present disclosure provides a high-precision electrode for transcranial nerve stimulation, which is configured to include an upper shell 1 and a lower shell 2 matched with the upper shell 1, and a cavity 21 is provided at the bottom of the lower shell 2, and a clamping groove 22 is provided on the inner wall of the cavity 21, and an electrode 3 is embedded in the clamping groove 22, so as to electrically stimulate the patient's transcranial nerve through the electrode 3 to achieve the purpose of treatment. When in use, the patient only needs to connect the upper shell 1 of the transcranial nerve stimulation electrode to the target connector, which can be a head cover or a specially provided electrode rack, and the lower shell 2 is set close to the part to be stimulated on the patient's transcranial nerve, so that the electrode 3 provided on the lower shell 2 can be in close contact with the part to be stimulated on the patient's transcranial nerve, so that the stimulation current transmitted by the wire 4 can be quickly and accurately introduced to the part to be stimulated on the patient's transcranial nerve, so as to achieve the goal of treating the disease. It can be seen that the high-precision electrode for transcranial nerve stimulation in the present disclosure has the advantages of simple structure, convenient use, high stimulation accuracy and obvious stimulation effect.

[0028] It can be understood that the headgear or electrode holder in this embodiment can be understood as an electrode cap, which is provided with a plurality of electrode mounting holes. When the patient needs to use the electrodes in this embodiment, the plurality of electrodes in this embodiment only need to be respectively mounted on different electrode mounting holes, and then the patient only needs to wear the electrode cap with the plurality of electrodes mounted on the head. It can be further understood that in order to facilitate the patient to wear the electrode cap in this embodiment, the headgear or electrode holder in this embodiment can be made of soft materials such as plastic or rubber.

[0029] Among them, in this embodiment, a snap-in groove 22 is set on the bottom surface of the lower shell 2, and the electrode 3 is embedded in the snap-in groove 22, so that the electrode 3 can be stably and reliably installed on the lower shell 2, so as to avoid the electrode 3 falling off from the lower shell 2 due to the patient's own shaking or external accidental collision during the use of the high-precision electrode for transcranial nerve stimulation in this embodiment; at the same time, it can also ensure that the surface of the electrode 3 can be fully exposed, so that the surface of the electrode 3 can be in full contact with the patient's transcranial part to be stimulated, so as to maximize the stimulation effect.

[0030] like Figure 2 and Figure 4 As shown, the upper shell 1 is provided with a connecting hole 11, and the lower shell 2 is provided with a connecting column 23, and the upper shell 1 is installed on the lower shell 2 through the cooperation between the connecting hole 11 and the connecting column 23.

[0031] Preferably, the inner surface of the connecting hole 11 is provided with an internal thread, and the outer surface of the connecting column 23 is provided with an external thread, and the upper shell 1 is installed on the lower shell 2 through the cooperation of the external thread and the internal thread.

[0032] In this embodiment, an internal thread is provided on the inner surface of the connecting hole 11 and an external thread is provided on the outer surface of the connecting column 23, so that the upper shell 1 is installed on the lower shell 2 through the cooperation of the external thread and the internal thread. This installation method is not only safe and reliable, but also convenient for disassembly and installation of the lower shell 2.

[0033] like Figure 2 and Figure 4 As shown, a wire entry hole 24 is provided on the side of the lower shell 2 , and the wire entry hole 24 is communicated with the clamping groove 22 . The wire 4 enters the cavity 21 through the wire entry hole 24 and is connected with the electrode 3 provided in the clamping groove 22 .

[0034] Preferably, if Figure 2 and Figure 4 As shown, a connection block 25 is provided on the side of the lower shell 2 , and the wire entry hole 24 is provided on the connection block 25 .

[0035] In the present embodiment, a connecting block 25 is provided on the side of the shell, and a wire entry hole 24 is provided on the connecting block 25, so as to avoid the high-precision electrode for transcranial nerve stimulation in the present embodiment from being scrapped due to the wire 4 breaking at the entrance of the wire entry hole 24 due to improper use or repeated use by the patient, thereby improving the service life of the high-precision electrode for transcranial nerve stimulation in the present embodiment.

[0036] like Figure 3As shown, the connecting column 23 is provided with a connecting column through hole 231 , and the electrode 3 is provided with an electrode through hole 31 . The inner diameter of the connecting column through hole 31 is smaller than the inner diameter of the electrode through hole 231 .

[0037] In the present embodiment, a connecting column through hole 231 is provided on the connecting column 23, and an electrode through hole 31 is provided on the electrode 3, so that when the patient uses the high-precision electrode for transcranial nerve stimulation in the present embodiment, a negative pressure is formed between the lower shell and the patient's transcranial stimulation site through the connecting column through hole 231 and the electrode through hole 31, so that the lower shell is tightly adsorbed on the patient's transcranial stimulation site; at the same time, the inner diameter of the connecting column through hole 31 is set to be smaller than the inner diameter of the electrode through hole 31, so that the upper surface of the electrode 2 can be positioned through the hole wall of the connecting column through hole 231, thereby playing a role in fixing the electrode 2, and further preventing the electrode 2 in the present embodiment from falling off from the shell 1 due to the patient's own shaking or external accidental collision during the use of the high-precision electrode for transcranial nerve stimulation in the present embodiment; and conductive paste can be injected onto the electrode 2 through the connecting hole and the connecting column through hole in the present embodiment, so as to improve the stimulation effect of the high-precision electrode for cervical cranial nerve stimulation in the present embodiment.

[0038] like Figures 1 to 3 As shown, at least one clamping block 12 is disposed on the top of the upper housing 1. Exemplarily, two clamping blocks 12 are disposed on the top of the upper housing 1 in this embodiment.

[0039] In this embodiment, at least one clamping block 12 is provided on the top of the upper shell 1 so that the upper shell 1 can be stably and reliably mounted on the target connecting member through the clamping block 12 .

[0040] Preferably, the upper shell 1 and the clamping block 12 are integrally formed to reduce the processing technology of the high-precision electrode for transcranial nerve stimulation in this embodiment.

[0041] like Figures 1 to 3 As shown, a glue injection hole 26 is provided on the top of the lower shell.

[0042] In this embodiment, a glue injection hole 26 is provided on the top of the lower shell 2, and the glue injection hole 26 is connected to the snap-in groove 22, so that glue can be injected into the electrode 2 provided in the snap-in groove 22 through the glue injection hole 26, so as to bond the electrode 3 to the lower shell 4.

[0043] like Figure 1 As shown, an annular groove 27 is provided between the clamping block 12 and the top of the upper shell 1 .

[0044] In the present embodiment, an annular groove 27 is provided between the clamping block 12 and the top of the upper shell 1 so that the clamping block 12 can be tightly clamped to the target setting position on the electrode frame through the annular groove 27, so as to prevent the high-precision electrode in the present embodiment from falling off from the target setting position on the electrode frame due to the patient's own shaking or accidental collision with the outside world during the use of the high-precision electrode for cervical and cranial nerve stimulation in the present embodiment.

[0045] Preferably, the upper shell 1 and the lower shell 2 are both made of silicone to improve the patient's comfort when using the high-precision electrode for transcranial nerve stimulation in this embodiment; at the same time, the side of the lower shell 2 away from the upper shell 1 is set to a trumpet-shaped structure, so that the high-precision electrode for transcranial nerve stimulation in this embodiment can be stably and reliably adsorbed on the patient's stimulated part, so as to further improve the stimulation accuracy of the high-precision electrode for transcranial nerve stimulation in this embodiment.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure, rather than to limit the protection scope of the present disclosure. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present disclosure can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present disclosure.

Claims

1. A high-precision electrode for transcranial nerve stimulation, characterized in that: It comprises an upper shell, a lower shell matched with the upper shell, and an electrode. The bottom of the lower shell is provided with a cavity, the inner wall of the cavity is provided with a clamping groove, and the electrode is embedded in the clamping groove.

2. The high-precision electrode for transcranial nerve stimulation according to claim 1, characterized in that: A wire entry hole is provided on the side of the lower shell, and the wire entry hole is communicated with the clamping groove. The wire enters the cavity through the wire entry hole and is connected with the electrode arranged in the clamping groove.

3. The high-precision electrode for transcranial nerve stimulation according to claim 1 or claim 2, characterized in that: The upper shell is provided with a connecting hole, and the lower shell is provided with a connecting column. The upper shell is installed on the lower shell through the cooperation between the connecting hole and the connecting column.

4. The high-precision electrode for transcranial nerve stimulation according to claim 3, characterized in that: The inner surface of the connecting hole is provided with an internal thread, and the outer surface of the connecting column is provided with an external thread. The upper shell is installed on the lower shell through the cooperation of the external thread and the internal thread.

5. The high-precision electrode for transcranial nerve stimulation according to claim 2, characterized in that: A connecting block is arranged on the side of the lower shell, and the wire inlet hole is arranged on the connecting block.

6. The high-precision electrode for transcranial nerve stimulation according to claim 3, characterized in that: The connecting post is provided with a connecting post through hole, and the electrode is provided with an electrode through hole. The inner diameter of the connecting post through hole is smaller than the inner diameter of the electrode through hole.

7. The high-precision electrode for transcranial nerve stimulation according to claim 1 or claim 2, characterized in that: At least one clamping block is disposed on the top of the upper shell, and the clamping block is integrally formed with the upper shell.

8. The high-precision electrode for transcranial nerve stimulation according to claim 7, characterized in that: An annular groove is arranged between the clamping block and the top of the upper shell.

9. The high-precision electrode for transcranial nerve stimulation according to claim 1 or claim 2, characterized in that: A glue injection hole is arranged on the top of the lower shell.

10. The high-precision electrode for transcranial nerve stimulation according to claim 1 or claim 2, characterized in that: The upper shell and the lower shell are both made of silicone, and a surface of the lower shell away from the upper shell is arranged as a trumpet-shaped structure.

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