Device and attachment for transcutaneous electrical stimulation of second division and / or third division of trigeminal nerve

Abstract

Provided are a device and attachment for transcutaneous electrical stimulation of the second division and / or the third division of the trigeminal nerve, comprising electrodes held on a glasses-shaped frame (2) and an electric circuit for applying electric pulses to the electrode. The device and attachment comprise at least one electrode portion selected from a first electrode portion (31) including at least two electrodes for selectively electrically stimulating the right facial second division, a second electrode portion (32) including at least two electrodes for selectively electrically stimulating the left facial second division, a third electrode portion (33) including at least two electrodes for selectively electrically stimulating the right facial third division, and a fourth electrode portion (34) including at least two electrodes for selectively electrically stimulating the left facial third division. The electric circuit forms a circuit between the at least two electrodes of the first electrode portion (31), forms a circuit between the at least two electrodes of the second electrode portion (32), forms a circuit between the at least two electrodes of the third electrode portion (33), or forms a circuit between the at least two electrodes of the fourth electrode portion (34).

Description

Device and attachment for transcutaneous electrical stimulation of the second and / or third branches of the trigeminal nerve

[0001] The present application relates to a device for transcutaneous electrical stimulation of the second and / or third branches of the trigeminal nerve, and an attachment for transcutaneous electrical stimulation of the second and / or third branches of the trigeminal nerve.

[0002] Devices for transcutaneous electrical stimulation of the trigeminal nerve are known. For example, Patent Document 1 discloses a device for transcutaneous electrical stimulation of the first branch of the trigeminal nerve. Also, Patent Document 2 discloses a system for trigeminal nerve stimulation, which includes a first electrode including at least one contact configured for skin placement on a first region of a patient's face covering the cutaneous distribution of at least one branch of the trigeminal nerve.

[0003] Furthermore, although it is not a device for transcutaneously electrically stimulating the trigeminal nerve, Patent Document 3 describes eyewear for detecting biosignals such as electrooculography.

[0004] Patent No. 6606270 Patent No. 6130789 Patent No. 6306926

[0005] The device described in Patent Document 1 provides transcutaneous electrical stimulation to the first branch of the trigeminal nerve and is used by attaching a long, symmetrical support having at least one electrode pair to the forehead. Therefore, when using the device described in Patent Document 1, it is difficult for the user to conceal the fact that they are wearing an obviously different device, making it difficult for the user to use the device without worrying about being seen by others. Furthermore, because the device described in Patent Document 1 provides transcutaneous electrical stimulation specifically to the first branch, it is unable to provide transcutaneous electrical stimulation to the second and / or third branches.

[0006] The device described in Patent Document 2 also uses an electrode assembly attached to the forehead as shown in FIG. 4 of Patent Document 2, or two individual electrodes attached to the forehead as shown in FIG. 7 of Patent Document 2. Therefore, similar to Patent Document 1, it has the problem of making it difficult for the user to use the device without worrying about being seen by others. Furthermore, although Patent Document 2 describes that the device is used to cover the skin distribution of at least one branch of the trigeminal nerve, the specification only describes an embodiment in which the device is attached to the forehead as shown in FIGS. 4 and 7. Patent Document 2 does not state what embodiment is preferred when transcutaneously electrically stimulating the second and / or third branches.

[0007] As described above, the device described in Patent Document 3 is an eyeglass-type device for detecting biosignals such as electrooculography. Therefore, the device described in Patent Document 3 has a problem in that it cannot provide transcutaneous electrical stimulation to the trigeminal nerve.

[0008] The present invention has been disclosed to solve the above-mentioned problems. As a result of extensive research, the inventors have newly discovered that the above-mentioned problems can be solved by attaching at least a part of an electrode portion for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve to an eyeglass-type frame.

[0009] That is, the purpose of the disclosure in this application is to provide a device for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve, and an attachment that enables commercially available eyeglasses to function as a device for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve.

[0010] The disclosure of the present application relates to the following devices and attachments for transcutaneous electrical stimulation of the second and / or third branches of the trigeminal nerve:

[0011] (1) A device for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve, the device comprising: a spectacle-type frame wearable on a user's head; electrodes held by the spectacle-type frame; and an electrical circuit for applying electrical pulses to the electrodes; wherein, when the second branch on the right face is defined as the right facial second branch, the second branch on the left face as the left facial second branch, the third branch on the right face as the right facial third branch, and the third branch on the left face as the left facial third branch, the electrodes comprise at least one electrode unit selected from the group consisting of: a first electrode unit including at least two electrodes for selectively electrically stimulating the right facial second branch; a second electrode unit including at least two electrodes for selectively electrically stimulating the left facial second branch; a third electrode unit including at least two electrodes for selectively electrically stimulating the right facial third branch; and a fourth electrode unit including at least two electrodes for selectively electrically stimulating the left facial third branch. The device is configured such that the electric circuit forms a circuit between at least two electrodes of the first electrode unit, a circuit between at least two electrodes of the second electrode unit, a circuit between at least two electrodes of the third electrode unit, and a circuit between at least two electrodes of the fourth electrode unit. (2) The device according to (1), wherein the eyeglass-type frame includes at least a right rim, a left rim, a right nose pad, a left nose pad, a right temple, and a left temple, and at least one of the electrodes constituting the first electrode unit is disposed on the right nose pad and / or at least one of the electrodes constituting the second electrode unit is disposed on the left nose pad. (3) The device described in (1) above, wherein the eyeglass-type frame includes at least a right rim, a left rim, a right nose pad, a left nose pad, a right temple, and a left temple, at least one of the electrodes constituting the first electrode portion is positioned below the right rim, and / or at least one of the electrodes constituting the second electrode portion is positioned below the left rim, the third electrode portion is positioned on the right temple, and the fourth electrode portion is positioned on the left temple.(4) The device according to (1) above, including the first electrode section, the second electrode section, the third electrode section, and the fourth electrode section. (5) The device according to (1) above, in which at least one electrode section selected from the group consisting of the first electrode section, the second electrode section, the third electrode section, and the fourth electrode section includes three or more electrodes. (6) The device according to any one of (1) to (5) above, further including a control section, the control section controlling pulse parameters of an electric pulse applied to at least one electrode section selected from the group consisting of the first electrode section, the second electrode section, the third electrode section, and the fourth electrode section. (7) The device according to (6) above, further including a measurement unit that measures at least one electrical resistance or current value selected from the group consisting of an electrical resistance or current value flowing between the electrodes of the first electrode unit, an electrical resistance or current value flowing between the electrodes of the second electrode unit, an electrical resistance or current value flowing between the electrodes of the third electrode unit, and an electrical resistance or current value flowing between the electrodes of the fourth electrode unit, and the control unit controls the pulse parameters based on the measurement result of the measurement unit. (8) The device according to (7) above, wherein, when the measurement result of the measurement unit exceeds a preset range, the control unit stops applying electrical pulses to the electrode unit that exceeds the preset range and / or issues a hazard signal that can be recognized by a user. (9) The device according to (6) above, including a communication circuit that allows a user to control the control unit via wired and / or wireless communication from an external device other than the device. (10) The device according to any one of (1) to (5), further including a control switch manually operated by a user, which control switch allows manual switching of pulse parameters of an electric pulse to be applied to at least one electrode unit selected from the group consisting of the first electrode unit, the second electrode unit, the third electrode unit, and the fourth electrode unit. (11) The device according to any one of (1) to (5), further including an elastic member that biases at least one of the electrodes included in the electrode unit in a direction away from the eyeglass-type frame. (12) The device according to any one of (1) to (5), further including a power supply unit for applying an electric pulse to the electrode.(13) An attachment for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve, the attachment including at least one attachment selected from the group consisting of: a first attachment attachable to at least one selected from the group consisting of the bridge, right nose pad, and right rim of eyeglasses; a second attachment attachable to at least one selected from the group consisting of the bridge, left nose pad, and left rim of eyeglasses; a third attachment attachable to the right rim of eyeglasses; and a fourth attachment attachable to the left rim of eyeglasses, wherein when the second branch on the right face is defined as the right facial second branch, the second branch on the left face is defined as the left facial second branch, the third branch on the right face is defined as the right facial third branch, and the third branch on the left face is defined as the left facial third branch, the first attachment includes: a first electrode portion including at least two electrodes for selectively electrically stimulating the right facial second branch; an electrical circuit forming a circuit between at least two electrodes of the first electrode unit and applying an electrical pulse, wherein the second attachment comprises: a second electrode unit including at least two electrodes for selectively electrically stimulating the left facial second branch, and an electrical circuit forming a circuit between at least two electrodes of the second electrode unit and applying an electrical pulse, wherein the third attachment comprises: a third electrode unit including at least two electrodes for selectively electrically stimulating the right facial third branch, and an electrical circuit forming a circuit between at least two electrodes of the third electrode unit and applying an electrical pulse, and wherein the fourth attachment comprises: a fourth electrode unit including at least two electrodes for selectively electrically stimulating the left facial third branch, and an electrical circuit forming a circuit between at least two electrodes of the fourth electrode unit and applying an electrical pulse. (14) The attachment according to (13) above, wherein the first attachment and the second attachment are connected via a connecting portion.

[0012] The device and attachment for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve disclosed herein can be used with eyeglasses holding the device and attachment for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve. Furthermore, the device and attachment for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve disclosed herein have electrode portions held in an eyeglass frame, so that at least a portion of the electrode portions are hidden by the eyeglass frame. Therefore, compared to the devices described in Patent Documents 1 and 2, the pressure of being seen by others is reduced. Furthermore, the device and attachment for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve disclosed herein have electrode portions held in an eyeglass frame, so that the user can easily position the stimulation electrodes in appropriate positions for transcutaneous electrical stimulation of the second and / or third branches of the trigeminal nerve without looking in a mirror or paying special attention.

[0013] FIG. 1 is a schematic diagram of the device worn by a user. FIG. 2 is a schematic diagram showing an example of the device. FIG. 3 is a diagram showing an outline of a third electrode unit. FIG. 4A is a schematic diagram for describing a first use example of the elastic member. FIG. 4B is a schematic diagram for describing a second use example of the elastic member. FIG. 4C is a schematic diagram for describing an example arrangement of the first electrode unit and the second electrode unit. FIG. 4D is a schematic diagram for describing an example arrangement of the first electrode unit and the second electrode unit. FIG. 4E is a schematic diagram for describing an example arrangement of the third electrode unit and the fourth electrode unit that stimulate the third branch. FIG. 4F is a schematic diagram for describing an example arrangement of the third electrode unit and the fourth electrode unit that stimulate the third branch. FIG. 5 is a schematic diagram for describing the number of electrodes included in each electrode unit. FIG. 6 is a schematic diagram for describing the control unit. FIG. 7 is a schematic diagram for describing the measurement unit. FIG. 8 is a schematic diagram for describing the communication circuit. FIG. 9 is a schematic diagram for describing a control switch that is manually operated by a user.

[0014] The following provides a detailed description of a device for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve (hereinafter simply referred to as the "device") and an attachment for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve (hereinafter simply referred to as the "attachment"). Note that, for ease of understanding, the position, size, range, etc. of each component shown in the drawings may not represent the actual position, size, range, etc. Therefore, the disclosure of the present application is not necessarily limited to the position, size, range, etc. disclosed in the drawings.

[0015] Furthermore, in this specification, (1) a numerical range expressed using "to" means a range that includes the numerical values ​​written before and after "to" as the lower and upper limits, (2) numerical values, numerical ranges, and qualitative expressions (e.g., expressions such as "same" and "the same") indicate numerical values, numerical ranges, and properties that include errors that are generally acceptable in the technical field, and (3) when it is written "approximately ____-shaped," it is interpreted as including not only the exact ____-shaped, but also a shape that is understood to be roughly ____-shaped.

[0016] Furthermore, when there are multiple components that perform the same or similar functions, they are described by adding numbers, such as "first xx," "second xx," "third xx," and "fourth xx," or by adding letters, such as "xxa," "xxb," "xxc," and "xxd." However, when giving a description that is common to each component, they may be simply described as "xx" without adding numbers or letters.

[0017] (Embodiment of Device) First, an outline of a device 1 according to an embodiment will be described with reference to Figures 1 to 3. Figure 1 is a schematic diagram of the device when worn by a user. Figure 2 is a schematic diagram showing an example of the device. Figure 3 is a diagram showing an outline of a third electrode section 33.

[0018] The device 1 according to the embodiment is used to transcutaneously stimulate the second and / or third branches of the trigeminal nerve. The second and third branches are described in detail with reference to FIG. 1 . The trigeminal nerve is one of the peripheral nerves that transmits facial sensations to the brain. It is distributed throughout the skin and acts as a sensor for sensory information such as light touch (tactile sensation), pain (nociception), and hot and cold (thermometry). The trigeminal nerve is divided into three branches from the trigeminal ganglion: the first branch (ophthalmic nerve) extends from the forehead to the eyeball; the second branch (maxillary nerve) extends from the lower eyelid to the cheek, upper lip, and upper gums; and the third branch (mandibular nerve) extends from the lower lip to the lower jaw, lower gums, half of the tongue, temporal region, frontotemporal region, temple, preauricular region, and tragus. Note that the example shown in FIG. 1 shows the second and third branches on the left side of the human face. In this specification, the second branch on the left face is defined as the left facial second branch V2L, and the third branch on the left face is defined as the left facial third branch V3L. Although not shown in FIG. 1 , the right face, which is symmetrical to V2L and V3L with respect to the facial midline, has a right facial second branch and a third branch. In this specification, the second branch on the right face is defined as the right facial second branch V2R, and the third branch on the right face is defined as the right facial third branch V3R. Furthermore, when the right facial second branch V2R and the left facial second branch V2L are collectively referred to as simply the second branch, and when the right facial third branch V3R and the left facial third branch V3L are collectively referred to as simply the third branch, these are also referred to as simply the branch. Furthermore, when the second branch and the third branch are collectively referred to as simply the branch, these are also referred to as simply the branch.

[0019] The device 1 of the embodiment includes an eyeglass-type frame 2 that can be worn on a user's head, electrodes 3 held by the eyeglass-type frame 2, and an electrical circuit 4 for applying electrical pulses to the electrodes.

[0020] As shown in Figure 2, the eyeglass frame 2 includes at least a right rim 21 for holding a lens, a left rim 22 for holding a lens, a bridge 23 connecting the right rim 21 and the left rim, a right nose pad 24, a left nose pad 25, a right temple 26, and a left temple 27.

[0021] The electrode 3 includes at least one electrode portion selected from the group consisting of: a first electrode portion 31 including at least two electrodes (31b, 31c) for selectively electrically stimulating the right facial second branch V2R; a second electrode portion 32 including at least two electrodes (32b, 32c) for selectively electrically stimulating the left facial second branch V2L; a third electrode portion 33 including at least two electrodes (33b, 33c) for selectively electrically stimulating the right facial third branch V3R; and a fourth electrode portion 34 including at least two electrodes (34b, 34c) for selectively electrically stimulating the left facial third branch V3L.

[0022] The first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 may be arranged on any part of the eyeglass frame 2 so as to selectively electrically stimulate the right facial second branch V2R, the left facial second branch V2L, the right facial third branch V3R, and the left facial third branch V3L, respectively. Any one or more of the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 may be arranged on the eyeglass frame 2, but of course, all four electrode units may be arranged on the eyeglass frame 2. When any one or more electrode units are arranged on the eyeglass frame 2, the electrode units may be combined freely. Examples include, but are not limited to, a combination of the first electrode portion 31 and the second electrode portion 32 to electrically stimulate the second branch, a combination of the third electrode portion 33 and the fourth electrode portion 34 to electrically stimulate the third branch, a combination of the first electrode portion 31 and the third electrode portion 33 to electrically stimulate the right side of the face, and a combination of the second electrode portion 32 and the fourth electrode portion 34 to electrically stimulate the left side of the face.

[0023] There are no particular limitations on the method for holding the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 on the eyeglass frame 2, as long as each electrode unit is attached to the eyeglass frame 2 so as to provide electrical stimulation to each branch. Examples of methods include, but are not limited to, adhering the electrode units to the eyeglass frame 2 with adhesive, forming the electrode units and the eyeglass frame 2 into a shape that allows them to fit together and fitting them together, and using a magnet to magnetically couple the eyeglass frame 2 and the electrode units.

[0024] The electrical circuit (not shown in Figure 2) is configured to form a circuit between at least two electrodes (31b, 31c) of the first electrode portion 31, a circuit between at least two electrodes (32b, 32c) of the second electrode portion 32, a circuit between at least two electrodes (33b, 33c) of the third electrode portion 33, and a circuit between at least two electrodes (34b, 34c) of the fourth electrode portion 34.

[0025] The electrode 3 and the electric circuit 4 will be described in more detail with reference to FIG. 3 . FIG. 3 is a schematic diagram of the third electrode unit 33 shown in FIG. 2 , viewed from the left temple 27. In the example shown in FIG. 3 , the third electrode unit 33 includes a pair of third electrodes 33b and 33c formed on a third insulating substrate 33a. The pair of third electrodes 33b and 33c are connected to a third power supply unit 33e via a third electric wire 43a and a third electric wire 43b (hereinafter, collectively referred to as "electric wire 43"). In the example shown in FIG. 3 , the electric wire 43 is formed on the surface of the third insulating substrate 33a. If the electric wire 43 is coated with an insulating material, it may be formed on the surface of the third insulating substrate 33a. Alternatively, the electric wire 43 may be disposed inside the third insulating substrate 33a. When the user wears the device 1, the pair of third electrodes 33b and 33c come into contact with the user's skin, and the electrical pulse applied from the third power supply unit 33e forms an electrical circuit in the order of, for example, the third wire 43a → third electrode 33b → skin → third electrode 33c → third wire 43b → third power supply unit 33e, thereby selectively electrically stimulating only the right facial third branch 3VR.

[0026] The insulating base material 33 a is not particularly limited as long as it does not short-circuit the pair of third electrodes 33 b and 33 c. For example, an insulating material may be used. The insulating base material 33 a may be a plastic material that can change shape at room temperature, or a non-plastic material that cannot change shape at room temperature.

[0027] Examples of plastic materials that can change shape at room temperature include, but are not limited to, rubbers such as silicone rubber; resins such as polypropylene, polyurethane elastomer, and polyvinyl chloride; and sponges such as EPDM (ethylene propylene diene monomer) and EPR (ethylene propylene rubber). Plastic materials that can change shape at room temperature may be solid or hollow. If the material is hollow, the rate at which the shape changes increases, which has the effect of making it easier for the pair of third electrodes 33b and 33c to adhere to the face when device 1 is worn.

[0028] Non-plastic materials that cannot change shape at room temperature include, but are not limited to, ceramics, glass, thermosetting resins, and metals treated with insulating coatings.

[0029] The pair of third electrodes 33b and 33c are not particularly limited as long as they can apply an electric pulse to the user by contacting the facial skin, and may be solid electrodes made of metal or the like, or wet pad electrodes made of hydrogel or the like used in health equipment.

[0030] The third power supply 33e is not particularly limited as long as it can apply an electric pulse to the pair of third electrodes 33b and 33c, and examples thereof include a battery. Furthermore, the third power supply 33e may be located in any position as long as it can be connected to the electric wire 43. It may be located inside the third insulating substrate 33a or in a position different from the third insulating substrate 33a. While the example shown in FIG. 3 includes the third power supply 33e, the third power supply 33e can also be attached by the user when using the device 1. Therefore, the third power supply 33e is not a required component for providing the device 1, but is an optional additional component. Therefore, in this specification, the electric circuit 4 refers to a circuit for electrically connecting the third power supply 33e to the third electrodes (33b, 33c) when the third power supply 33e is located, and the third power supply 33e is not a component requirement of the electric circuit.

[0031] Although not shown in the drawings, the first electrode unit 31, the second electrode unit 32, and the fourth electrode unit 34 may be fabricated in the same manner as the third electrode unit 33 shown in Fig. 3, except that the shape of the insulating substrate may be changed as necessary depending on the location where they are to be disposed. Regarding the configuration of the first electrode unit 31, the "third insulating substrate 33a," "pair of third electrodes 33b and 33c," "third electric wire 43a and 43b," and "third power supply unit 33e" of the third electrode unit 33 may be read as "first insulating substrate 31a," "pair of first electrodes 31b and 31c," "first electric wire 41a and 41b," and "first power supply unit 31e," respectively. The configuration of the second electrode unit 32 can be read as "second insulating substrate 32a," "pair of second electrodes 32b and 32c," "second electric wires 42a and 42b," and "second power supply unit 32e," similar to the first electrode unit 31. The configuration of the fourth electrode unit 34 can be read as "fourth insulating substrate 34a," "pair of fourth electrodes 34b and 34c," "fourth electric wires 44a and 44b," and "fourth power supply unit 34e," similar to the first electrode unit 31.

[0032] 3 , and the first electrode unit 31, the second electrode unit 32, and the fourth electrode unit 34, which are replaced as above, are described as examples in which each electrode unit includes a power supply unit. Alternatively, in the device 1 according to the embodiment, when two or more electrodes selected from the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 are held by the eyeglass-type frame 2, at least two or more electrodes may share a single power supply unit. For example, four electrode units may share a single power supply unit, or the first electrode unit 31 and the second electrode unit 32, which are arranged in close proximity, may share a single power supply unit.

[0033] Furthermore, when the eyeglass frame 2 is worn, a certain gap is generally formed between the user's face and the rims and temples. Therefore, depending on the location of each electrode portion arranged on the eyeglass frame 2, the thickness of the insulating base material and / or the length of the electrode protruding from the insulating base material may be appropriately adjusted so that the electrode of each electrode portion can easily come into contact with the user's face.

[0034] When worn by a user, the device 1 of the embodiment can provide transcutaneous electrical stimulation to at least one branch selected from the group consisting of the right facial second branch V2R, the left facial second branch V2L, the right facial third branch V3R, and the left facial third branch V3L. Therefore, the device according to the embodiment is expected to be used for the treatment and / or symptom alleviation of migraine, tension, headache, cluster headache, hemicrania continua, SUCNT, chronic paroxysmal hemicrania, trigeminal neuralgia, facial nerve palsy, facial nerve disorder, fibromyalgia, chronic pain, depression, cyclothymia, post-traumatic stress syndrome, post-concussion syndrome, fatigue, coma, anxiety, tremor, aphasia, obsessive-compulsive disorder, insomnia, sleep disorders, sleep apnea syndrome, hypersomnia, epilepsy, drop attacks, attention deficit hyperactivity disorder, Parkinson's disease, Alzheimer's disease, multiple sclerosis, neurological disorders including stroke and cerebellar syndrome, brain fog, sequelae of COVID-19 infection, fatigue, mood disorders, autonomic imbalance, etc. The device can also be used as a health device, etc.

[0035] The device 1 according to the embodiment provides the following advantages. (1) At least one electrode selected from the group consisting of the first electrode 31, the second electrode 32, the third electrode 33, and the fourth electrode 34 is held by the eyeglass frame 2 so as to be positioned between the eyeglass frame 2 and the user's face. Therefore, when the user wears the device 1, the electrodes are hidden by the eyeglass frame 2, making them less visible to others. This reduces the pressure of being seen by others compared to devices that are attached to the forehead, etc. Note that the effect achieved by wearing the device 1 disclosed in the present application is not intended to mean that all of the electrodes are invisible when the device 1 is worn. As described above, the effect of the device 1 disclosed in the present application is achieved if at least a portion of the electrodes are hidden by the eyeglass frame 2, making them invisible from the outside. Of course, adjusting the design of the eyeglass frame 2 and the shape and size of the electrodes to make a larger proportion of the electrodes invisible from the outside is preferable. (2) The devices described in Patent Documents 1 and 2 require the user to attach electrodes to the area where electrical stimulation is to be performed. Therefore, wearing the device requires time and effort, such as checking the position in front of a mirror while attaching the electrodes. On the other hand, the device 1 according to the embodiment is designed as glasses, so that when the user wears the device on their head, the electrodes naturally contact the user's skin in a position appropriate for transcutaneous electrical stimulation. This improves the convenience of using the device 1. (3) The device 1 is designed as glasses, allowing for electrical stimulation of the second and / or third branches for extended periods of time, even in public, without feeling uncomfortable. Therefore, in addition to its use for treating and / or alleviating symptoms of the aforementioned neuropathy, it can also be used for cosmetic purposes such as facelifts and for mood changes. (4) The design of the treatment device itself can be enhanced, thereby increasing the motivation of patients who have not been proactive in treating and / or alleviating symptoms of the aforementioned neuropathy. Furthermore, the glasses-style design allows the device 1 to be easily worn anywhere. As a result, for example, by using the device 1 early when a migraine patient begins to feel unwell, the amount of acute oral medication used can be reduced.(5) In the device described in Patent Document 1, the electrode pair 11 and 12 are attached to the user's face so that they straddle the facial midline. However, even if the pair of electrodes in the device described in Patent Document 1 is attached, for example, to the location of the second branch straddling the facial midline, it is not possible to electrically stimulate the second branch by simply passing electricity through the nasal cartilage. In contrast, in the device 1 disclosed in the present application, the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 each form a circuit and can apply an electrical pulse. Therefore, it is possible to transcutaneously stimulate a desired location selected from the right facial second branch V2R, the left facial second branch V2L, the right facial third branch V3R, and the left facial third branch V3L. Note that when four electrodes are arranged, it is possible to transcutaneously stimulate a desired location by selecting the electrode unit to which the electrical pulse is applied. Therefore, it is possible to selectively transcutaneously stimulate the branch required for treatment or symptom relief. (6) In Patent Documents 1 and 2, the first branch is electrically stimulated. On the other hand, the device disclosed in the present application can electrically stimulate the second and / or third branches. Electrical stimulation of the second and / or third branches can not only treat and / or alleviate the symptoms of the above-mentioned diseases, but also regulate pain sensation in the jaw and teeth. Therefore, it can be used to alleviate pain during dental treatment.

[0036] (Regarding the placement of the electrode parts) As described above, the first electrode part 31, the second electrode part 32, the third electrode part 33 and the fourth electrode part 34 may be held in any part of the eyeglass-type frame 2 so as to selectively electrically stimulate the right facial second branch V2R, the left facial second branch V2L, the right facial third branch V3R and the left facial third branch V3L, respectively. Various examples of possible holding (placement) of the first electrode part 31, the second electrode part 32, the third electrode part 33 and the fourth electrode part 34 will be described below.

[0037] (Example 1 of Use of Elastic Member) Example 1 of Use of the elastic member will be described with reference to Fig. 4A . In the example shown in Fig. 4A , an elastic member 5 is disposed between the third electrode portion 33 and the right temple 26, biasing the third electrode portion 33 in a direction away from the right temple 26 (in a direction toward the face). There are no particular restrictions on the elastic member 5 as long as it can bias the third electrode portion 33 in the above direction, and examples of the elastic member 5 include a coil spring, a leaf spring, rubber, and other elastic materials.

[0038] In the example shown in Fig. 4A, the elastic member 5 is disposed in a position close to the right rim 21 of the third electrode portion 33, and an end portion 331 of the third electrode portion 33 remote from the right rim 21 is rotatably held by the right temple 26. In the example shown in Fig. 4A, the third electrode 33b is disposed in a position where there is a gap between the right temple 26 and the face when the device 1 is worn on the head. However, the arrangement of the elastic member 5 biases the third electrode 33b toward the face, thereby achieving the effect of more reliably bringing the third electrode 33b into contact with the face.

[0039] Note that the example shown in FIG. 4A is merely one example of the arrangement of the elastic members 5. There are no limitations on the number and arrangement of the elastic members 5 as long as the technical idea that the arrangement of the elastic members 5 biases the third electrodes 33b and / or 33c of the third electrode portion 33 toward the face can be realized. Although not shown, for example, an elastic member 5 may be provided instead of the rotatable holding of the end portion 331 shown in FIG. 4A . In other words, the third electrode portion 33 may not be in direct contact with the right temple 26 but may be held to the right temple 26 via two elastic members 5. Alternatively, one elastic member 5 may be arranged approximately in the center of the third electrode portion 33 so that the third electrode portion 33 is held to the right temple 26 via one elastic member 5. In other words, all or at least a part of the third electrode portion 33 may be held in direct contact with the right temple 26, or the third electrode portion 33 may be held indirectly to the right temple 26 via another member without being in contact with the right temple 26.

[0040] Although detailed explanation is omitted, the elastic member 5 may be positioned at any one or more of the following locations: between the fourth electrode portion 34 and the left temple 27, between the first electrode portion 31 and the right rim 21, and between the second electrode portion 32 and the left rim 22.

[0041] (Use Example 2 of Elastic Member) With reference to Fig. 4B , Use Example 2 of the elastic member 5 will be described. In the example shown in Fig. 4A , the elastic member 5 biases the third insulating base material 33a of the third electrode portion 33. On the other hand, the example shown in Fig. 4B differs from the example shown in Fig. 4A in that the elastic member 5 directly biases the third electrode 33b. Fig. 4B shows an example in which the elastic member 5 is a coil spring, but similarly to the above, the elastic member 5 is not particularly limited to a leaf spring, rubber, or the like, as long as it can bias the third electrode 33b in a direction away from the right temple 26 (a direction toward the face).

[0042] 4B shows an example in which the elastic member 5 is arranged so as to bias the third electrode 33b, but the elastic member 5 may also be arranged so as to bias the third electrode 33b and / or the third electrode 33c. Although not shown, the elastic member 5 may also be arranged so as to bias any one or more of the fourth electrodes 34b and / or 34c of the fourth electrode unit 34, the first electrodes 31b and / or 31c of the first electrode unit 31, and the second electrodes 32b and / or 32c of the second electrode unit 32 toward the face.

[0043] In summary of the examples shown in Figures 4A and 4B, the elastic member 5 can be said to be a member that directly or indirectly biases the electrodes of the electrode portion in a direction away from the eyeglass frame 2 (in a direction toward the face).

[0044] (Regarding Arrangement Example 1 of the First Electrode Unit 31 and the Second Electrode Unit 32 for Stimulating the Second Branch) With reference to Figures 2 and 4A, Arrangement Example 1 of the first electrode unit 31 and the second electrode unit 32 will be described. In the example shown in Figure 2, the first electrode 31b, which is one of the electrodes constituting the first electrode unit 31, is arranged on the right nose pad 24 of the eyeglass frame 2, and the first electrode 31c is arranged on the lower portion of the right rim 21. Alternatively, although not shown, both the first electrode 31b and the first electrode 31c may be arranged on the right nose pad 24. When viewed from the direction of the second branch on the face, the right facial second branch V2R can still be electrically stimulated even if both the first electrode 31b and the first electrode 31c are arranged on the right nose pad 24.

[0045] Alternatively, both the first electrode 31b and the first electrode 31c may be disposed on the lower portion of the right rim 21. When viewed from the perspective of the path of the second branch on the face, even if both the first electrode 31b and the first electrode 31c are disposed on the lower portion of the right rim 21, it is possible to electrically stimulate the right second facial branch V2R. Depending on the locations of the first electrodes 31b and 31c, the thickness of the first insulating base material 31a may be adjusted, the elastic member 5 may be used, or other appropriate adjustments may be made so that the first electrodes 31b and 31c can easily come into contact with the user's face when the device 1 is worn.

[0046] In the example shown in FIG. 4A , the first electrode 31b of the first electrode unit 31 is disposed (fixed) on the right nose pad 24, while the first electrode 31c is spaced apart from the right rim 21. In other words, a portion of the first electrode unit 31 is fixed to the eyeglass frame 2, while the other portion of the first electrode unit 31 is spaced apart from the eyeglass frame 2. In the example shown in FIG. 4A , the first electrode unit 31 may be configured as follows: (a) The first electrode 31b (or the first insulating substrate 31a) is disposed (fixed) on the right nose pad 24, while the remaining portion of the first insulating substrate 31a is configured to be rotatable around the first electrode 31b. In this case, the position of the first electrode 31c is adjustable. (b) The first insulating substrate 31a is configured to have an expandable structure and / or a shape that can be changed. Examples of expandable structures include, but are not limited to, a telescopic structure. Furthermore, the shape-changing configuration is not limited to, but may be, for example, a multi-joint structure or a material (e.g., insulating-coated metal) that changes shape when a predetermined force is applied. If the first insulating substrate 31a is configured to be stretchable and / or changeable in shape, the positional relationship between the first electrode 31b and the first electrode 31c can be adjusted over a wider range. Of course, the configuration described in (b) may be combined with the configuration described in (a). (c) In the examples described in (a) and (b) above, after adjusting the position of the first electrode 31c, the first electrode 31c (or the first insulating substrate 31a holding the first electrode 31c) may be engaged with the underside of the right rim 21. In this case, the stability of the first electrode portion 31 is improved. On the other hand, the first electrode 31c may be spaced apart from the right rim 21. In this case, the first electrode 31c is more likely to come into contact with the face when the device 1 is worn. (d) In the examples described above in (a) to (c), the first electrode 31b is disposed (fixed) on the right nose pad 24. Alternatively, the first electrode 31c may be disposed (fixed) below the right rim 21, and the first electrode 31b may be spaced apart from the eyeglass frame 2.

[0047] Although detailed description will be omitted, the second electrodes 32b and 32c of the second electrode unit 32 may also be arranged as described above in (a) to (d). To summarize the above arrangements, it can be said that at least one of the electrodes (31b, 31c) constituting the first electrode unit 31 is arranged in the right nose pad 24, and / or at least one of the electrodes (32b, 32c) constituting the second electrode unit 32 is arranged in the left nose pad 25. Alternatively, it can be said that at least one of the electrodes (31b, 31c) constituting the first electrode unit 31 is arranged below the right rim 21, and / or at least one of the electrodes (32b, 32c) constituting the second electrode unit 32 is arranged below the left rim 22.

[0048] Although not shown, the technical concepts described in (a) to (d) above can also be applied to the third electrode portion 33 and the right temple 26, and the fourth electrode portion 34 and the left temple 27. For example, the end portion 331 of the third electrode portion 33, which is close to the ear and likely to come into contact with the face, may be disposed (fixed) on the right temple, and the third insulating base material 33a may be configured to be stretchable and / or changeable in shape. Of course, the third electrode 33b side may also be disposed (fixed) on the right temple 26. Furthermore, the fourth electrode portion 34 may be configured in the same manner as the third electrode portion 33.

[0049] (Regarding Arrangement Example 2 of the First Electrode Unit 31 and the Second Electrode Unit 32 Stimulating the Second Branch) Arrangement Example 2 of the first electrode unit 31 and the second electrode unit 32 will be described with reference to Figures 4C and 4D. In Arrangement Example 1, the first electrode unit 31 and the second electrode unit 32 are configured as separate members. On the other hand, in Arrangement Example 2, the first electrode unit 31 and the second electrode unit 32 are connected via a connecting portion 6, so that the two electrodes are handled as a single unit.

[0050] 4C shows an example in which the first electrode portion 31 and the second electrode portion 32 are connected via a bridge engagement member 6a as the connecting portion 6. Although not shown, the bridge engagement member 6a is configured to be able to engage with the bridge 23 of the eyeglass frame 2. Therefore, in the example shown in FIG. 4C , the first insulating base material 31a may be configured to have an expandable and / or deformable structure as necessary, and the positions of the first electrodes (31b, 32c) may be adjusted so that the first electrodes (31b, 31c) and the second electrodes (32b, 32c) are positioned, for example, as shown in Arrangement Example 1 when the bridge engagement member 6a is engaged with the bridge 23. The second electrode portion 32 may be adjusted in a similar manner.

[0051] FIG. 4D shows an example in which the first electrode unit 31 and the second electrode unit 32 are connected via a nose adhesive tape 6b as the connecting unit 6. The nose adhesive tape 6b is preferably made of a material that can maintain a predetermined shape, such as a nostril dilator tape. When the nose adhesive tape 6b is attached to the nose, the first electrodes (31b, 31c) and the second electrodes (32b, 32c) are positioned, for example, as in Arrangement Example 1 above. The first insulating substrate 31a may be configured to be stretchable and / or deformable as needed, and the positions of the first electrodes (31b, 32c) may be adjusted accordingly. The second electrode unit 32 may be adjusted in a similar manner. Note that if the nose adhesive tape 6b, the first electrode unit 31, and the second electrode unit 32 are configured to maintain a predetermined shape, the nose adhesive tape 6a can be first fastened to the nose, and then the eyeglass-type frame 2 is worn, allowing the eyeglass-type frame 2 to press the first electrode unit 31 and the second electrode unit 32 against the face. In this case, it can be said that the first electrode portion 31 and the second electrode portion 32 are indirectly held by the eyeglass frame 2. Of course, by using a magnet or the like, for example, at least a part of the nose adhesive tape 6b, the first electrode portion 31, and the second electrode portion 32 may be held directly by the eyeglass frame 2.

[0052] (Example of arrangement of the third electrode unit 33 and the fourth electrode unit 34 that stimulate the third branch) With reference to Figures 4E and 4F, an example of arrangement of the third electrode unit 33 and the fourth electrode unit 34 that stimulate the third branch will be described. Figure 2 and other figures show an example in which the third electrode unit 33 is arranged along the right temple 26, and the fourth electrode unit 34 is arranged along the left temple 27. Alternatively or additionally, as shown in Figure 4E, the third electrode unit 33 may be arranged non-parallel to the right temple 26, in other words, at least one of the third electrodes (33b, 33c) may be arranged at a position offset from the right temple 26.

[0053] In the example shown in Fig. 4E, the third electrode 33 is arranged so as not to be rotatable relative to the right temple 26. Alternatively, as shown in Fig. 4F, the third electrode 33 may be arranged so as to be rotatable (in the directions D1 and D2) relative to the right temple 26 around the rotation axis 7 and so that the rotation can be locked at a desired position. When the third electrode 33 is arranged so as to be rotatable, the range over which the right facial third branch V3R can be stimulated is expanded, making it easier to find the location where transcutaneous electrical stimulation is to be applied. Although not shown, the fourth electrode 34 may also be configured similarly to the third electrode 33.

[0054] Next, optional additional configuration examples that can be employed for the device 1 will be described. (Regarding the Number of Electrodes Included in Each Electrode Unit) The number of electrodes included in each electrode unit will be described with reference to FIG. 5. The number of electrodes arranged in each electrode unit is not particularly limited as long as it is two or more electrodes that can form a pair of electrodes, and may be three as shown in FIG. 5. Furthermore, although not shown, the number of electrodes included in an electrode unit may be four, five, six, seven, eight, nine, ten, or eleven or more. When three or more electrodes are formed, each electrode may be connected to a power supply unit via an electric wire. Note that the number of electrodes included in the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 may be the same or different.

[0055] When three or more electrodes are formed, the electrodes may be positioned at equal intervals in a substantially linear fashion as shown in FIG. 5 . Alternatively, they may be positioned at uneven intervals and / or in a non-linear fashion. Regarding the electrodes included in the first electrode unit 31 and the second electrode unit 32 for transcutaneously electrically stimulating the second branch, the three or more electrodes may be positioned in the same manner as in the embodiment described above under "Regarding Electrode Unit Arrangement." More specifically, all of the third electrodes constituting the third electrode unit 33 may be positioned on the right nose pad 24 or below the right rim 21. Alternatively, at least one of the third electrodes may be positioned on the right nose pad 24 or below the right rim 21. The fourth electrode of the fourth electrode unit 34 may also be positioned in the same manner as the third electrodes.

[0056] The effect of forming three or more electrodes will be described with reference to the example shown in FIG. 5 . Note that FIG. 5 illustrates an example of the third electrode portion 33, but the same effect can be achieved with the first electrode portion 31, the second electrode portion 32, and the fourth electrode portion 34. (1) When two electrodes (33b and 33c) are used, the location of electrical stimulation is always the same. Therefore, if electrical stimulation is continued for a long period of time, the user may experience discomfort such as pain. On the other hand, in the example shown in FIG. 5 , for example, after transcutaneous electrical stimulation of the right facial third branch V3R is performed for a predetermined period of time using two electrodes (33b and 33d), the right facial third branch V3R can be transcutaneously stimulated at a different location using two different electrodes (33d and 33c). This reduces the user's discomfort when using the device 1 for a long period of time. (2) Depending on the user, the effect may vary depending on the location of the right facial third branch V3R to be transcutaneously stimulated. By selecting any two electrodes from multiple electrodes and applying an electrical pulse, the range of locations to which transcutaneous electrical stimulation is applied can be expanded, increasing the likelihood of achieving effective results. (3) For example, by designating electrode 33d as the positive electrode and electrodes 33b and 33c as the negative electrodes, one circuit can be formed with electrodes 33d and 33b, and another circuit can be formed with electrodes 33d and 33c. In this case, by providing a measuring unit (described below), the resistance values ​​of circuit A formed with electrodes 33d and 33b and circuit B formed with electrodes 33d and 33c can be measured separately. For example, even if the same voltage is applied to circuit A and circuit B, the desired transcutaneous electrical stimulation may not be achieved due to obstacles such as hair or the contact of the electrodes with the skin. However, by measuring the resistance values ​​of circuit A and circuit B separately, it is possible to select the desired circuit and perform electrical stimulation, for example.

[0057] (Regarding the control unit) The control unit will be described with reference to Fig. 6. The device 1 may include a control unit 33f. In the example shown in Fig. 6, the control unit 33f is disposed in the third electrode unit 33. In the example shown in Fig. 6, the control unit 33f controls pulse parameters of the electric pulses applied to the pair of electrodes 33b and 33c of the third electrode unit 33.

[0058] The pulse parameters controlled by the control unit 33f are not particularly limited as long as they can be used to treat and / or alleviate the symptoms of the neuropathy exemplified above. Examples of the pulse parameters include, but are not limited to, the pulse frequency, the duration of one pulse, the interval between applied pulses, the applied current value, and the pulse shape. The control unit 33f may control one or more selected from the exemplified pulse parameters.

[0059] The ranges of each pulse parameter are listed below, but are not limited to these. Pulse frequency: 1 Hz to 10 MHz, preferably 60 Hz to 200 Hz. Application time of one pulse (pulse width): 10 nsec to 1000 μsec, preferably 250 μsec to 300 μsec. Interval time between applied pulses: 90 nsec to 999 msec, preferably 4.7 msec to 16.4 msec. Current value: 1 mA to 40 mA, preferably 6 mA to 16 mA. Pulse shape: biphasic wave, preferably biphasic rectangular wave. Voltage value: voltage at which a current of the above current value flows.

[0060] Although not shown, each of the first electrode unit 31, the second electrode unit 32, and the fourth electrode unit 34 may include a control unit similar to the control unit 33f. Alternatively, the device 1 may include one to three control units, and two or more electrode units selected from the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 may share one control unit. The pulse parameters may be controlled separately for each of the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34, or may be controlled so that the same pulse parameter is applied to at least two or more electrode units.

[0061] When the device 1 includes a control unit and controls the pulse parameters, the following advantages are achieved: (1) Electric pulses can be applied with the maximum range of pulse parameters, such as the current amount, that the user can tolerate. This can improve the therapeutic effect and / or symptom relief effect. (2) Depending on the thickness of the subcutaneous fat layer, the depth to which the current reaches can be adjusted by adjusting the frequency.

[0062] (Regarding the Measuring Unit) The measuring unit will be described with reference to Fig. 7. The device 1 may include a measuring unit. In the example shown in Fig. 7, the measuring unit 33g measures the electrical resistance or current value between the electrode 33b and the electrode 33c of the third electrode unit 33.

[0063] In the device 1 disclosed in the present application, each electrode unit is held by an eyeglass frame 2. The wearing condition may change each time the eyeglass frame 2 is worn, such as when the eyeglass frame 2 is tilted when the user wears it on their head, or when the user wears the eyeglass frame 2 with hair or mask ear straps intervening over the user's ears. Furthermore, the eyeglass frame 2 may be tilted due to being bumped by a hand or other object while being worn. In such cases, the degree of contact between the electrodes of each electrode unit and the user's skin may change; in other words, the area of ​​the electrode in contact with the skin may change. Even when the first electrode unit 31 and the second electrode unit 32 are indirectly held by the eyeglass frame 2, the area of ​​the electrode in contact with the skin may change. Furthermore, if the area of ​​the electrode in contact with the skin changes, the value of the current flowing through the skin also changes. If the current value increases, muscle or nerve damage may occur, and if the current value decreases, the effectiveness of wearing the device 1 may be reduced.

[0064] By providing the measuring unit 33g, the electrical resistance or current value flowing between the pair of electrodes 33b and 33c can be constantly measured. The measuring unit 33g is not particularly limited as long as it can measure the electrical resistance or current value between the pair of electrodes 33b and 33c, and a known electrical resistance or current measuring device (measuring circuit) may be used. When the electrical resistance is measured, the current value can be calculated from the applied voltage value. Based on the measurement results of the measuring unit 33g, the control unit 33f can control pulse parameters (e.g., applied voltage, etc.), thereby adjusting the value of the current flowing between the pair of electrodes 33b and 33c, for example. Furthermore, when the applied voltage is lowered, the control unit 33f may control pulse parameters such as frequency and / or pulse width to achieve the same effect through electrical stimulation. Furthermore, if the measurement result of the measuring unit 33g exceeds a preset range, for example, if the measured value exceeds the range and an excessive current flows, or if the measured value falls below the range and the effect of the device 1 is not obtained, the control unit 33f may stop the application of electric pulses to the third electrode unit 33 and / or may issue a hazard signal that can be recognized by the user. There are no particular limitations on the hazard signal, such as a warning sound or a signal display, as long as it allows the user to recognize that an abnormality has occurred.

[0065] Although not shown, each of the first electrode unit 31, the second electrode unit 32, and the fourth electrode unit 34 may include a measuring unit similar to the measuring unit 33g. Alternatively, the device 1 may include one to three measuring units, and two or more electrode units selected from the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 may share one measuring unit. Note that the preset range may be the same for each electrode unit, or may be different.

[0066] The device 1 equipped with a measuring unit provides the following advantages. (1) The devices described in Patent Documents 1 and 2 attach electrodes to the user. Therefore, there is little possibility that the contact area of ​​the electrodes in contact with the user's skin will change. In contrast, the device 1 disclosed in the present application has the electrode units attached to the eyeglass-type frame 2, which may change the electrode area in contact with the user's skin. By providing a measuring unit and halting the application of electrical pulses when an abnormality is detected, the safety of using the device 1 disclosed in the present application is improved. (2) By feeding back the measurement results of the measuring unit to the control unit, stable electrical pulses can be applied, further improving the effectiveness of the device 1. (3) In addition to the measured electrical resistance or current value, the device 1 can also detect and control the optimal electrode unit for electrical stimulation based on information such as the user's experience while wearing the device 1. Furthermore, even when three or more electrodes are arranged on one electrode unit to form two or more circuits, the optimal circuit can be detected and controlled.

[0067] (Regarding the Communication Circuit) The communication circuit will be described with reference to Fig. 8. The device 1 may include a communication circuit 33h. In the example shown in Fig. 8, by using the communication circuit 33h, a user can control the control unit 33f from an external device other than the device 1 via a wired and / or wireless connection.

[0068] When connecting to an external device via a wire, the communication circuit 33h may include a connector for connecting to the external device and an electric wire for connecting the connector to the control unit 33f. When connecting to an external device wirelessly, a receiver for a known wireless means such as Bluetooth may be incorporated into the circuit. An example of the external device is a smartphone. Note that when a rechargeable battery or the like is used as the third power supply unit 33e, the communication circuit may be used as a charging circuit for the third power supply unit 33e.

[0069] Although not shown, each of the first electrode unit 31, the second electrode unit 32, and the fourth electrode unit 34 may include a communication circuit similar to the communication circuit 33h. Alternatively, the device 1 may include one to three communication circuits, and two or more electrode units selected from the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 may share one communication circuit.

[0070] When the device 1 includes a communication circuit, the following effects are achieved. (1) The control content of the control unit of the device 1 can be changed through an app on a smartphone or the like, and control commands such as pulse parameters can be sent directly to the control unit from the smartphone or the like. Furthermore, the third power supply unit 33e can be charged while using the device 1. In addition, by storing usage status and effects in the app and performing machine learning or the like, it is possible to issue an optimized electrical stimulation pattern to the user. Therefore, the convenience of using the device 1 is improved. (2) By providing a communication circuit, when an abnormality occurs in the device 1, an abnormality signal can be sent not only to the user but also to an administrator or the like. Therefore, safety is improved even when the device 1 is used by a person with an impairment in the organ that detects hazard signals.

[0071] (Regarding Manually Operated Control Switches) A ​​control switch (hereinafter, sometimes simply referred to as a "switch") that is manually operated by the user will be described with reference to FIG. 9. The device 1 may include a switch 33i. In the example shown in FIG. 9, the switch 33i manually controls the pulse parameters described above. There are no particular limitations on the switch 33i as long as it can control the pulse parameters described above. Examples of switch 33i include, but are not limited to, a switch that simply switches on and off, a switch that changes the control content by pressing and holding or multiple times, and an electrostatic switch. For example, it is possible to manually change the applied voltage, etc.

[0072] Although not shown in the figures, each of the first electrode unit 31, the second electrode unit 32, and the fourth electrode unit 34 may include a switch similar to the switch 33i. Alternatively, the device 1 may include one to three switches, and two or more electrodes selected from the first electrode unit 31, the second electrode unit 32, the third electrode unit 33, and the fourth electrode unit 34 may share one switch. Note that the content controlled by the switch may be the same for each electrode unit, or may be different.

[0073] When the device 1 includes a switch, the following effects are achieved: (1) Pulse parameters and the like can be controlled using only the configuration of the device 1, without using a communication device such as a smartphone.

[0074] (Lens) The right and left rims 21 and 22 may be fitted with lenses that provide a synergistic effect with the treatment and / or symptom relief of nerve damage provided by the device 1. For example, it is known that migraine patients experience headaches exacerbated by high light intensity, blue light, red or yellow wavelength light stimulation, and flickering light stimulation, while conversely, headaches are alleviated by green light stimulation with a wavelength of approximately 525 nm. Therefore, by fitting blue-light blocking lenses, polarized lenses, or photochromic lenses to the right and left rims 21 and 22 of the device 1, a synergistic effect between trigeminal nerve electrical stimulation and headache relief through intervention in the optic nerve can be expected. Of course, the right and left rims 21 and 22 may also be fitted with ordinary vision correction lenses.

[0075] The above-described embodiments, electrode arrangements, and optional additional configuration examples are more specific examples of the device 1 and are not intended to be limiting. Various design changes may be made within the scope of the technical concept disclosed in this application. Furthermore, any combination of the above-described embodiments, electrode arrangements, and optional additional configuration examples may be used.

[0076] (Embodiment of Attachment) Next, an attachment for transcutaneous electrical stimulation of the second and / or third branches of the trigeminal nerve will be described. By attaching the attachment to existing eyeglasses, the existing eyeglasses can be used as device 1 for transcutaneous electrical stimulation of the second and / or third branches of the trigeminal nerve.

[0077] The attachment of the embodiment includes at least one attachment selected from the group consisting of: a first attachment that can be attached to at least one selected from the group consisting of the bridge 23, right nose pad 24 and right rim 21 of the glasses; a second attachment that can be attached to at least one selected from the group consisting of the bridge 23, left nose pad 25 and left rim 22 of the glasses; a third attachment that can be attached to the right rim 26 of the glasses; and a fourth attachment that can be attached to the left rim of the glasses.

[0078] When the second branch on the right face is defined as the right facial second branch V2R, the second branch on the left face as the left facial second branch V2L, the third branch on the right face as the right facial third branch V3R, and the third branch on the left face as the left facial third branch V3L, each attachment includes the following configuration.

[0079] The first attachment includes: a first electrode portion 31 including at least two electrodes (31b, 31c) for selectively electrically stimulating the right second facial branch V2R; and an electrical circuit that forms a circuit between the at least two electrodes (31b, 31c) of the first electrode portion 31 and applies an electrical pulse.

[0080] The second attachment includes: a second electrode portion 32 including at least two electrodes (32b, 32c) for selectively electrically stimulating the left second facial branch V2L; and an electrical circuit that forms a circuit between the at least two electrodes (32b, 32c) of the second electrode portion 32 and applies an electrical pulse.

[0081] The third attachment includes: a third electrode unit 33 including at least two electrodes (33b, 33c) for selectively electrically stimulating the right facial third branch V3R; and an electrical circuit that forms a circuit between the at least two electrodes (33b, 33c) of the third electrode unit 33 and applies an electrical pulse.

[0082] The fourth attachment includes: a fourth electrode portion including at least two electrodes (34b, 34c) for selectively electrically stimulating the left facial third branch V3L; and an electrical circuit that forms a circuit between at least two electrodes of the fourth electrode portion and applies an electrical pulse.

[0083] The first electrode portion 31, the second electrode portion 32, the third electrode portion 33, and the fourth electrode portion 34 of the attachment according to the embodiment are the same as the first electrode portion 31, the second electrode portion 32, the third electrode portion 33, and the fourth electrode portion 34 of the above-described device 1. In addition, the electrical circuit of the attachment according to the embodiment is the same as the electrical circuit 4 of the above-described device 1. Therefore, detailed explanation will be omitted to avoid duplication.

[0084] Furthermore, at least one of the first to fourth attachments may optionally adjust the electrode arrangement in each attachment, similar to the "Electrode Arrangement" described in the embodiment of device 1 above. Furthermore, at least one of the attachments may optionally adopt the configurations described in the "Number of Electrodes Included in Each Electrode Unit," "Control Unit," "Measurement Unit," "Communication Circuit," and "Manually Operated Control Switch" above. It may also include a power supply unit. In other words, the matters described in the embodiment of device 1 can also be adopted for the first to fourth attachments. In other words, the attachment according to the embodiment can adopt the same configuration as device 1 according to the embodiment, except for the exclusion of the eyeglass-type frame 2 from device 1 according to the embodiment. Therefore, the first and second attachments may be provided in a connected state via a connecting unit. Furthermore, if any one or more attachments from the first to fourth attachments are provided, the combination of attachments is free.

[0085] The devices and attachments disclosed herein allow a user to discreetly administer transcutaneous electrical stimulation to the second and / or third branches of the trigeminal nerve, and are therefore useful to the medical industry.

[0086] REFERENCE SIGNS LIST 1...device, 2...eyeglass-type frame, 21...right rim, 22...left rim, 23...bridge, 24...right nose pad, 25...left nose pad, 26...right temple, 27...left temple, 3...electrode, 31...first electrode portion, 31a...first insulating substrate, 31b, 31c...first electrode, 32...second electrode portion, 32a...second insulating substrate, 32b, 32c...second electrode, 33...third electrode portion, 33a...third insulating substrate, 33b, 33c, 33d...third electrode, 33d...third power supply portion , 33e...power supply unit, 33f...control unit, 33g...measuring unit, 33h...communication circuit, 33i...switch, 331...end, 34...fourth electrode unit, 34a...fourth insulating substrate, 34b, 34c...fourth electrode, 341...end, 4...electrical circuit, 43a...third electric wire, 43b...third electric wire, 5...elastic member, 6...connecting portion, 6a...bridge engaging member, 6b...nose adhesive tape, 7...rotating axis, V2R...right face second branch, V2L...left face second branch, V3R...right face third branch, V3L...left face third branch

Claims

1. A device for percutaneously electrically stimulating the second and / or third branches of the trigeminal nerve, the device comprising: a spectacle-type frame wearable on a user's head; electrodes held by the spectacle-type frame; and an electrical circuit for applying an electrical pulse to the electrodes, wherein when the second branch on the right face is defined as a right facial second branch, the second branch on the left face is defined as a left facial second branch, the third branch on the right face is defined as a right facial third branch, and the third branch on the left face is defined as a left facial third branch, the electrodes comprise at least one electrode unit selected from the group consisting of: a first electrode unit including at least two electrodes for selectively electrically stimulating the right facial second branch, a second electrode unit including at least two electrodes for selectively electrically stimulating the left facial second branch, a third electrode unit including at least two electrodes for selectively electrically stimulating the right facial third branch, and a fourth electrode unit including at least two electrodes for selectively electrically stimulating the left facial third branch, The device, wherein the electrical circuit is configured to form a circuit between at least two electrodes of the first electrode portion, form a circuit between at least two electrodes of the second electrode portion, form a circuit between at least two electrodes of the third electrode portion, and form a circuit between at least two electrodes of the fourth electrode portion.

2. The device according to claim 1, wherein the eyeglass-type frame includes at least a right rim, a left rim, a right nose pad, a left nose pad, a right temple, and a left temple, at least one of the electrodes constituting the first electrode portion is disposed on the right nose pad portion, and / or at least one of the electrodes constituting the second electrode portion is disposed on the left nose pad portion, the third electrode portion is disposed on the right temple, and the fourth electrode portion is disposed on the left temple.

3. The device according to claim 1, wherein the eyeglass-type frame includes at least a right rim, a left rim, a right nose pad, a left nose pad, a right temple, and a left temple, at least one of the electrodes constituting the first electrode portion is disposed on the underside of the right rim and / or at least one of the electrodes constituting the second electrode portion is disposed on the underside of the left rim, the third electrode portion is disposed on the right temple, and the fourth electrode portion is disposed on the left temple.

4. The device of claim 1, comprising the first electrode portion, the second electrode portion, the third electrode portion, and the fourth electrode portion.

5. The device of claim 1, wherein at least one electrode portion selected from the group consisting of the first electrode portion, the second electrode portion, the third electrode portion, and the fourth electrode portion includes three or more electrodes.

6. The device according to any one of claims 1 to 5, further comprising a control unit, the control unit controlling pulse parameters of an electrical pulse applied to at least one electrode portion selected from the group consisting of the first electrode portion, the second electrode portion, the third electrode portion, and the fourth electrode portion.

7. The device described in claim 6, further comprising a measurement unit which measures at least one electrical resistance or current value selected from the group consisting of an electrical resistance or current value flowing between the electrodes of the first electrode unit, an electrical resistance or current value flowing between the electrodes of the second electrode unit, an electrical resistance or current value flowing between the electrodes of the third electrode unit, and an electrical resistance or current value flowing between the electrodes of the fourth electrode unit, and the control unit controls the pulse parameters based on the measurement results of the measurement unit.

8. The device according to claim 7, wherein, when the measurement result of the measuring unit exceeds a preset range, the control unit stops applying electric pulses to the electrode unit that exceeds the preset range, and / or issues a hazard signal that can be recognized by a user.

9. The device according to claim 6, further comprising a communication circuit for allowing a user to control the control unit via wire and / or wirelessly from an external device other than the device.

10. The device according to any one of claims 1 to 5, further comprising a control switch that is manually operated by a user, the control switch being capable of manually switching pulse parameters of an electric pulse to be applied to at least one electrode portion selected from the group consisting of the first electrode portion, the second electrode portion, the third electrode portion, and the fourth electrode portion.

11. The device according to any one of claims 1 to 5, further comprising an elastic member that biases at least one of the electrodes included in the electrode portion in a direction away from the eyeglass-type frame.

12. The device according to any one of claims 1 to 5, further comprising a power supply for applying an electric pulse to the electrodes.

13. An attachment for transcutaneously electrically stimulating the second and / or third branches of the trigeminal nerve, the attachment including at least one attachment selected from the group consisting of: a first attachment attachable to at least one selected from the group consisting of the bridge, right nose pad, and right rim of the spectacles; a second attachment attachable to at least one selected from the group consisting of the bridge, left nose pad, and left rim of the spectacles; a third attachment attachable to the right rim of the spectacles; and a fourth attachment attachable to the left rim of the spectacles, wherein the second branch on the right face is defined as the right facial second branch, the second branch on the left face is defined as the left facial second branch, the third branch on the right face is defined as the right facial third branch, and the third branch on the left face is defined as the left facial third branch, the first attachment including: a first electrode portion including at least two electrodes for selectively electrically stimulating the right facial second branch; an electrical circuit which forms a circuit between at least two electrodes of the first electrode unit and applies an electrical pulse; the second attachment includes a second electrode unit including at least two electrodes for selectively electrically stimulating the left facial second branch, and an electrical circuit which forms a circuit between at least two electrodes of the second electrode unit and applies an electrical pulse; the third attachment includes a third electrode unit including at least two electrodes for selectively electrically stimulating the right facial third branch, and an electrical circuit which forms a circuit between at least two electrodes of the third electrode unit and applies an electrical pulse; and the fourth attachment includes a fourth electrode unit including at least two electrodes for selectively electrically stimulating the left facial third branch, and an electrical circuit which forms a circuit between at least two electrodes of the fourth electrode unit and applies an electrical pulse.

14. The attachment according to claim 13, wherein the first attachment and the second attachment are connected via a connecting portion.

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