Electrical stimulator

Abstract

To provide an electrostimulator capable of suppressing reduction of power supplied to a conductive cloth of a cloth electrode.SOLUTION: An electrostimulator includes: electrode sections 106 for imparting electric stimulation; and a control unit 108 for supplying power to the electrode sections 106. The electrode section 106 includes: a conductive cloth brought into contact with the body of a user; and an electrode section side connection part 128 fixed to the conductive cloth and detachably connected to a control unit side connection part 136. Power is supplied from the control unit 108 via the electrode section side connection parts 128. The electrode section 106 further includes, between the conductive cloth and the electrode section side connection part 128, a conductive member 130 having a corrosion resistance higher than that of the electrode section side connection part 128.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to an electrical stimulation device.

Background Art

[0002] Patent Document 1 discloses a muscle stimulation device that applies electrical stimulation to a user's muscles. This muscle stimulation device moves the muscles by passing a weak current through the muscles to tense and relax them. Thereby, for example, muscle strength is enhanced.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The development of a cloth electrode using a conductive cloth for an electrode has been underway. In the cloth electrode, in order to stabilize the electrical conductivity, the conductive cloth is used in a state containing water by spraying water or the like. In this case, the terminal (i.e., the metal member) fixed to the conductive cloth corrodes. When the terminal corrodes, its electrical resistance increases, the power supplied to the cloth electrode decreases, and the intended electrical stimulation cannot be applied.

[0005] The present invention has been made in such a situation, and an exemplary object of one aspect thereof is to provide an electrical stimulation device capable of suppressing a decrease in the power supplied to the conductive cloth of the cloth electrode.

Means for Solving the Problems

[0006] To solve the above problems, an electrical stimulation device according to one aspect of the present invention comprises an electrode section for applying electrical stimulation and a control unit for supplying power to the electrode section. The electrode section includes a conductive cloth that comes into contact with the user's body and an electrode section-side connector fixed to the conductive cloth and detachably connected to a control unit-side connector. Power is supplied to the conductive cloth from the control unit via the electrode section-side connector, and the electrode section further includes a conductive member between the conductive cloth and the electrode section-side connector that has higher corrosion resistance than the electrode section-side connector.

[0007] Furthermore, any combination of the above components, or any substitution of the components or expressions of the present invention between methods, apparatus, systems, etc., are also valid embodiments of the present invention. [Effects of the Invention]

[0008] According to the present invention, it is possible to suppress the decrease in power supplied to the conductive fabric of the cloth electrode. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view of the electrical stimulation device 100 according to an embodiment. [Figure 2] Figure 1 is a block diagram showing the functional configuration of an electrical stimulation device. [Figure 3] Figure 1 is a flowchart illustrating an example of the operation of an electrical stimulation device. [Figure 4] Figure 1 is a cross-sectional view showing the electrode portion and its surrounding area. [Figure 5] This figure shows the experimental results. [Figure 6] This is a cross-sectional view showing the electrode portion and its surroundings of an electrical stimulator according to a modified example. [Figure 7] This is a cross-sectional view of the electrode portion of an electrical stimulator according to another modified example. [Modes for carrying out the invention]

[0010] The present invention will be described below with reference to the drawings, based on preferred embodiments. The embodiments are illustrative and not limiting, and not all features or combinations thereof described in the embodiments are necessarily essential to the invention. In the embodiments and modifications, the same or equivalent components and members will be denoted by the same reference numerals, and redundant explanations will be omitted as appropriate.

[0011] Figure 1 is a perspective view of an electrical stimulator 100 according to an embodiment. The electrical stimulator 100 is an EMS (Electrical Muscle Stimulation) device that provides electrical stimulation to the user's muscles. The electrical stimulator 100 comprises a wearable device 102 and an electrical stimulator 104 attached to the wearable device 102.

[0012] In this embodiment, the attachment device 102 is configured to be attached to the abdomen. The attachment device 102 is tubular and is attached to the abdomen so as to encircle it. The attachment device 102 is elastic and fits snugly against the abdomen. The material of the attachment device 102 is not particularly limited.

[0013] The electrical stimulation unit 104 comprises a pair of electrode units 106 and a control unit 108. The pair of electrode units 106 are provided on the inner circumference of the device 102, specifically in the area corresponding to the rectus abdominis muscle. The pair of electrode units 106 are electrically connected to the control unit 108. Power is supplied to the pair of electrode units 106 from the control unit 108. The pair of electrode units 106 apply electrical stimulation to the user's rectus abdominis muscle using the supplied power.

[0014] The control unit 108 is detachably attached to the outer circumference of the attachment device 102, in the illustrated example, at a position facing the pair of electrode portions 106, with the attachment device 102 in between. The housing 110 of the control unit 108 is provided with an operation unit 112. The operation unit 112 is operated by the user. When the user operates the operation unit 112, an operation signal corresponding to that operation is generated. The control unit 118 (described later) of the control unit 108 performs control based on this operation signal. The operation unit 112 may include buttons to increase or decrease the level of electrical stimulation.

[0015] FIG. 2 is a block diagram showing the functional configuration of the electrical stimulation device 100. Each block shown in FIG. 2 can be realized hardware-wise by elements such as a computer's CPU (Central Processing Unit) and mechanical devices, and software-wise by a computer program or the like. Here, however, functional blocks realized by their cooperation are depicted. Therefore, it is understood by those skilled in the art touched upon in this specification that these functional blocks can be realized in various forms by a combination of hardware and software.

[0016] The electrical stimulation unit 104 further includes a contact detection unit 114, a communication unit 116, a control unit 118, a charging terminal 120, and a battery 122.

[0017] The contact detection unit 114 detects when the pair of electrode units 106 is in contact with the skin. In the present embodiment, the contact detection unit 114 is configured as a current detection unit that detects the current flowing between the pair of electrode units 106. That is, when the pair of electrode units 106 is properly in contact with the skin, a current flows between the pair of electrode units 106 through the skin, and thus the contact with the skin can be detected by detecting that current.

[0018] The communication unit 116 communicates with an external device. The communication unit 116 may be configured as a wireless communication unit or a wired communication unit. The purpose of the communication is not particularly limited, but data stored in the electrical stimulation device 100 or the training history by the electrical stimulation device 100 can be transmitted to the external device, and commands regarding the operation and setting information change of the electrical stimulation device 100 can be received from the external device.

[0019] The battery 122 is electrically connected to the control unit 118 and supplies power to the control unit 118. The battery 122 is preferably a secondary battery such as a lithium-ion battery, but may also be a primary battery. The charging terminal 120 receives power for charging the battery 122 and outputs it to the control unit 118. Various connectors can be used for the charging terminal 120. The battery 122 is charged by the power received at the charging terminal 120. The battery 122 may be configured to be charged by a non-contact charging system such as wireless charging.

[0020] The control unit 118 controls the charging power received at the charging terminal 120 and supplies it to the battery 122.

[0021] Also, when the control unit 118 detects that the pair of electrode portions 106 are in contact with the skin by the contact detection unit 114, it applies a voltage between the pair of electrode portions 106 at a predetermined operation time (for example, 10 minutes) and a predetermined cycle (for example, a cycle with a frequency of 20 Hz) according to the motion control program. That is, an electrical stimulus is applied to the location where each electrode is arranged (the rectus abdominis muscle in this example). There are two types of modes in the motion control program. In the first mode for muscle hypertrophy, electrical stimulation is mainly applied at a frequency of 20 Hz, and in the second mode for aerobic exercise, electrical stimulation is mainly applied at a frequency lower than 20 Hz (for example, 4 to 10 Hz). The first mode is based on a frequency of 20 Hz, for example, and is used for resistance training that mainly adds slow voluntary movements for muscle hypertrophy centered on involuntary movements caused by electrical stimulation from the electrical stimulation device 100. The second mode is based on a frequency of 4 Hz, for example, and is used for cardio training as a hybrid training that adds voluntary movements such as bike training to involuntary movements caused by electrical stimulation from the electrical stimulation device 100. Cardio training is aerobic exercise aimed at anaerobic exercise by speed movements and fat burning by calorie consumption.

[0022] The above is the basic configuration of the electrical stimulation device 100. Next, its operation will be described.

[0023] Figure 3 is a flowchart illustrating an example of the operation of the electrical stimulation device 100. Figure 3 shows the process S100 from when the user puts on the electrical stimulation device 100, turns on the power, and starts and stops the electrical stimulation.

[0024] The power to the electrical stimulator 100 is turned on (S102).

[0025] The control unit 118 determines whether the electrode unit 106 is in contact with the skin based on the detection result from the contact detection unit 114 (S104). If the electrode unit 106 is not in contact with the skin (N in S104), it determines whether a predetermined skin contact waiting time (e.g., 120 seconds) has elapsed (S106). If the predetermined skin contact waiting time has not elapsed (N in S106), the control unit 118 waits for a predetermined waiting time and then returns to processing S104. If the predetermined skin contact waiting time has elapsed without skin contact being detected (Y in S106), the process is terminated. At this time, the power to the electrical stimulator 100 may be turned off.

[0026] When the electrode 106 is in contact with the skin (Y in S104), the control unit 118 starts applying electrical stimulation according to the exercise control program (S108). The application of electrical stimulation can promote blood flow. In addition, it is expected that the muscles will contract continuously and become hypertrophied.

[0027] The control unit 118 determines whether or not the termination condition is met (S110). The termination condition may be, for example, that the motor control program has finished, or that the pair of electrode units 106 are no longer in contact with the skin, or that a termination instruction has been received from an external source (for example, the user). If the termination condition is not met (N in S110), the control unit 118 waits for a predetermined waiting time and then returns to the beginning of S108. If the termination condition is met (Y in S110), the process is terminated. At this time, the power to the electrical stimulator 100 may be turned off.

[0028] Next, the electrode section 106 will be described in more detail.

[0029] Figure 4 is a cross-sectional view showing one of the electrode sections 106 and its surroundings. Figure 4 shows the control unit 108 removed from the mounting device 102.

[0030] The electrode portion 106 includes a cushioning material 124, a conductive fabric 126 covering the cushioning material 124, an electrode portion side connection portion 128 fixed to the conductive fabric 126, and a conductive member 130.

[0031] The conductive fabric 126 is sewn to the fitting 102 around its entire circumference. The conductive fabric 126 is conductive. The conductive fabric 126 is not particularly limited, but in this embodiment it includes a cloth 132 and a conductive layer 134 formed on one surface of the cloth 132.

[0032] The fabric 132 may be made of silk or other fibers, or synthetic fibers such as nylon.

[0033] The conductive layer 134 is a layer of conductive material. The conductive material is not particularly limited, but may be a conductive polymer. The conductive polymer may be PEDOT-pTS (poly(3,4-ethylenedioxythiophene)-p-toluenesulfonic acid) or PEDOT-PSS (poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid), etc. In this case, the conductive layer 134 has high washing durability because it does not contain metal in its material. Furthermore, there is no concern about a decrease in conductivity due to oxidation or corrosion. Furthermore, there is no risk of causing metal allergies. Furthermore, there is no risk of a decrease in conductivity due to metal peeling off due to friction. Note that the conductive layer 134 may contain metals such as silver or copper.

[0034] The conductive fabric 126 may be a fabric woven from conductive fibers formed by attaching or impregnating a conductive material.

[0035] By constructing the electrodes with conductive fabric 126, current can be passed between the pair of electrode sections 106 without attaching gel pads, as is the case with electrodes in conventional muscle electrical stimulators.

[0036] If the conductive cloth 126 is not wet, there is a risk of localized electrical stimulation being applied to the skin. Therefore, the conductive cloth 126 is lightly moistened with a spray or the like to retain moisture. This stabilizes the current flow between the pair of electrode parts 106 even when the person is not sweating. In any case, the conductive cloth 126 is used in a wet state with a conductive liquid such as sprayed water or sweat.

[0037] The cushioning material 124 is, for example, a rectangular sponge, and the cushioning material 124 forms the convex shape which is the overall shape of the electrode portion 106. Furthermore, by housing the cushioning material 124 within the conductive fabric 126, the adhesion between the conductive fabric 126 and the skin can be increased.

[0038] The cushioning material 124 may be water-repellent. When the conductive fabric 126 is wet, if the amount of water exceeds the amount that the conductive fabric 126 can hold, water will also enter the cushioning material 124. If the cushioning material 124 is not water-repellent, the water that enters the cushioning material 124 will be retained by the cushioning material 124 and will not penetrate the conductive fabric 126. In contrast, if the cushioning material 124 is water-repellent, the water that enters the cushioning material 124 will actively penetrate the conductive fabric 126. This allows the conductive fabric 126 to remain wet.

[0039] The electrode-side connector 128 is configured to be physically and electrically detachably connected to the control unit-side connector 136. The control unit-side connector 136 is electrically connected to the control unit 118 and, in this example, is fixed to the housing 110 of the control unit 108. The control unit 108 is supported by the electrode-side connector 128 and, by extension, the mounting device 102, when the control unit-side connector 136 is connected to the electrode-side connector 128.

[0040] In this embodiment, the electrode-side connector 128 and the control unit-side connector 136 constitute a snap button. Specifically, the electrode-side connector 128 is the male part of the snap button and includes a pin 138 and a stud 140. The control unit-side connector 136 is the female part of the snap button.

[0041] Both the Hoso 138 and the Genko 140 are made of metal such as SUS. The Hoso 138 is provided on the inner circumference side of the mounting fixture 102, that is, on the same side as the conductive fabric 126 relative to the mounting fixture 102, and the Genko 140 is provided on the outer circumference side of the mounting fixture 102, that is, on the opposite side from the conductive fabric 126 relative to the mounting fixture 102.

[0042] The hose 138 includes a disc portion 142 and a projection 144 that protrudes from the center of the disc portion 142. The projection 144 may be hollow or solid. In other words, the projection 144 may be cylindrical or columnar. In the former case, the tip side (towards the stud 140) of the projection 144 may be closed as shown in the figure, or it may be open as shown in the figure.

[0043] The genko 140 has a disc portion 152 and a projection 154 that protrudes from the center of the disc portion 152. The projection 154 is hollow.

[0044] By crimping the protrusion 138 and the stud 140, the protrusion 138 and the stud 140 (i.e., the electrode-side connection part 128) are fixed to the conductive fabric 126 and the mounting fixture 102. The protrusion 144 of the protrusion 138 passes through the conductive member 130, conductive fabric 126, mounting fixture 102 and reinforcing plate 170 in that order and is fitted into the hollow protrusion 144 of the stud 140, and the disc portions 142 and 152 of the protrusion 138 and the stud 140 sandwich the conductive member 130, conductive fabric 126, mounting fixture 102 and reinforcing plate 170.

[0045] The configurations of Hoso 138 and Genko 140 are not limited to this example and may be constructed using known or future-available technologies.

[0046] The conductive member 130 is electrically conductive. Furthermore, the conductive member 130 is a material that does not allow moisture to pass through. As described above, the conductive member 130 is sandwiched between the disc portion 142 of the narrow part 138 and the disc portion 152 of the stud 140, so that the conductive member 130 and the surface 142a of the disc portion 142 of the narrow part 138 on the stud 140 side come into contact, and the conductive member 130 and the conductive layer 134 of the conductive cloth 126 come into contact.

[0047] The conductive member 130 has at least a portion of its surface 130a on the side of the genko 140 that contacts the conductive fabric 126 made of a material with higher corrosion resistance than the hoso 138. Corrosion resistance refers to the ability to withstand corrosion. Corrosion refers to the alteration and wear of a metal material from the surface due to chemical reactions with water, oxygen, etc. Corrosion resistance can be evaluated using known or future available technologies. The material with higher corrosion resistance than the hoso 138 (metal) is typically nonmetallic, but may also be metal.

[0048] For example, the entire conductive member 130 may be made of a material with higher corrosion resistance than the hose 138.

[0049] For example, the conductive member 130 may be a member made of a material with the same or lower corrosion resistance as the hose 138, covered with a material with higher corrosion resistance than the hose 138. In this case, the entire conductive member 130 may be covered with a material with higher corrosion resistance than the hose 138, or the entire or a part of the surface 130a on the stud 140 side of the conductive member 130 may be covered with a material with higher corrosion resistance than the hose 138.

[0050] For example, the conductive member 130 may be a material containing a material with higher corrosion resistance than the Hoso 138, and a material with the same or lower corrosion resistance as the Hoso 138. In this case, part of the surface 130a of the conductive member 130 on the genko 140 side is formed of a material with the same or lower corrosion resistance as the Hoso 138, and the remaining part is formed of a material with higher corrosion resistance than the Hoso 138.

[0051] In any case, the conductive member 130 enables the power supplied to the fiber 138 via the control unit side connection part 136 and the stud 140 to be supplied to the conductive fabric 126. In addition, the presence of the conductive member 130 between the conductive fabric 126 and the disc portion 142 of the fiber 138 prevents water sprayed onto the conductive fabric 126 from adhering to the conductive fabric 126 side of the disc portion 142 of the fiber 138. This prevents the fiber 138 from corroding and prevents sulfur based on the conductive polymer of the conductive layer 134 from adhering to the fiber 138. On the other hand, as described above, since at least a portion of the surface 130a of the conductive member 130 on the stud 140 side that is in contact with the conductive layer 134 is made of a highly corrosion-resistant material, even if water sprayed onto the conductive fabric 126 adheres to the surface 130a of the conductive member 130, corrosion of the conductive member 130 can be prevented. In other words, it is possible to prevent the electrical resistance between the disc portion 142 of the hose 138 and the conductive cloth 126 from increasing.

[0052] Preferably, the conductive member 130 is formed to cover the entire surface of the disc portion of the narrow section 138 on the side facing the stud 140. This further suppresses the adhesion of water to the disc portion of the narrow section 138.

[0053] Preferably, the conductive member 130 is softer than the ribs 138, at least on its outer surface. The conductive member 130 may be a sheet-like elastic body whose whole or outer surface is mainly made of, for example, silicon and carbon black or graphite. Here, since the fabric 132 of the conductive cloth 126 is woven with warp and weft threads, recesses are formed between the warp threads and the weft threads. Therefore, the surface of the conductive cloth 126 is relatively uneven. When the conductive cloth 126 is brought into direct contact with the hard metal rib 138 disc portion 142, the recesses on the surface of the conductive cloth 126 do not come into contact with the disc portion 142 of the rib 138 or come into contact with it very little. As a result, the substantial contact area between the conductive cloth 126 and the disc portion 142 of the rib 138 becomes relatively small, and the electrical resistance becomes relatively large.

[0054] In contrast, when the conductive fabric 126 is brought into contact with the conductive member 130, which is softer than the stud 138, to put it extremely, the conductive member 130 will adhere closely to the conductive fabric 126 so as to fit into the recess of the conductive fabric 126, resulting in a relatively large contact area between the conductive fabric 126 and the conductive member 130. Consequently, the electrical resistance between the disc portion 142 of the stud 138 and the conductive fabric 126 becomes relatively small.

[0055] In other words, when the conductive member 130 is provided, the electrical resistance is reduced compared to when the conductive member 130 is not provided, and power consumption can be suppressed.

[0056] The inventor conducted an experiment to confirm the effects of the embodiment. Figure 5 shows the results of that experiment. In the experiment, each of the electrical stimulators 100_1 to 100_12 was used repeatedly (23 minutes per use), and the resistance value [Ω] was measured after a predetermined number of uses. From Figure 5, it can be seen that the presence of the conductive member 130 suppresses an increase in electrical resistance. Furthermore, at the point of 0 uses, the electrical resistance with the conductive member 130 is lower than the electrical resistance without the conductive member 130. From this, it can be seen that by providing the conductive member 130, the true contact area with the conductive cloth 126, which has a relatively uneven surface, becomes relatively larger, and the electrical resistance decreases.

[0057] The present invention has been described above based on embodiments. These embodiments are illustrative, and it will be understood by those skilled in the art that various modifications are possible in combinations of their components and processing steps, and that such modifications are also within the scope of this disclosure. Such modifications will be described below.

[0058] (Variation 1) Figure 6 is a cross-sectional view showing the electrode portion 106 and its surroundings of the modified electrical stimulation device 100. In this modified example, the attachment 102 has a multi-layer structure in which an outer fabric 160 and a lining 162 are superimposed. In Figure 6, for the sake of explaining the structure, the outer fabric 160 and the lining 162 are depicted as being far apart, but in reality, the outer fabric 160 and the lining 162 are more closely fitted together and sewn to each other at appropriate positions.

[0059] The electrode portion 106 is provided on the inner circumference side of the lining 162, except for the stud 140 of the electrode portion side connection portion 128, which is provided between the outer fabric 160 and the lining 162. The hose 138 has a disc portion 142 and a plurality of pointed protrusions 146 that protrude from the disc portion 142. The plurality of protrusions 146 penetrate the conductive fabric 126 and the attachment device 102 and fit into the disc portion 142.

[0060] The control unit 108 is provided on the outer periphery of the outer fabric 160. The control unit side connection part 136 is provided between the outer fabric 160 and the lining 162, and is connected to the electrode side connection part 128 there. The control unit side connection part 136 is electrically connected to the control unit 108 via an electrical cable 164.

[0061] According to this modified example, the same effects and advantages as in the embodiment can be achieved.

[0062] (Modification 2) The attachment device 102 only needs to be wearable on the body and is not limited to that of the embodiment. For example, the attachment device 102 may be of the belt type and be wearable on the abdomen, arms, legs, or other body parts. Alternatively, the attachment device 102 may be of the clothing type and be wearable on the upper or lower body.

[0063] (Variation 3) Unlike the embodiment, the electrode portion 106 may be detachable from the mounting device 102. Figure 7 is a cross-sectional view of the electrode portion 106 of an information processing device according to another modified example. The electrode portion 106 includes a conductive fabric 126 sewn into a bag shape, a cushioning material 124 housed inside it, and a pair (only one is shown in Figure 7) of electrode portion-side connection portions 128 fixed to the conductive fabric 126. The protrusion 138 is provided inside the bag of the conductive fabric 126, and the stud 140 is provided outside. A welded fabric 168 is attached to the surface of the conductive fabric 126 facing the protrusion 138 to increase its strength. In this modified example, a conductive member 130 is provided between the disc portion 152 of the stud 140 and the conductive layer 134 on the surface of the conductive fabric 126. If current also flows through the protrusion 138, the conductive member 130 may also be provided between the protrusion 138 and the conductive fabric 126 (welded fabric). This modified example can achieve the same effects as the embodiment.

[0064] (Modification 4) Unlike the embodiment and the modifications described above, the conductive member 130 may be formed as a coating layer that covers the conductive fabric 126 side of the disc portions 142 and 152 of the Hoso 138 and Genko 140.

[0065] (Variation 5) In the embodiment and the above-described modifications, the electrode-side connector 128 was a male snap button and the control unit-side connector 136 was a female snap button. However, the electrode-side connector 128 may be a female snap button and the control unit-side connector 136 may be a male snap button. In this case, the electrode-side connector 128 includes a head and a spring. The protrusions 138 and 140 in the embodiment and the above-described modifications can be appropriately replaced with the head and spring, respectively.

[0066] (Experimental variation 6) In the embodiments and the above-described modifications, the case in which the electrode-side connector 128 and the control unit-side connector 136 constitute a snap button has been described, but the invention is not limited to this. At least the electrode-side connector 128 is made of metal, and the electrode-side connector 128 and the control unit-side connector 136 are configured to be physically and electrically detachable. The electrode-side connector 128 and the control unit-side connector may constitute fasteners other than snap buttons.

[0067] Any combination of the embodiments and modifications described above is also useful as an embodiment of the present invention. The new embodiments resulting from these combinations possess the effects of both the combined embodiments and modifications.

[0068] Furthermore, it will be understood by those skilled in the art that the functions to be performed by each component described in the claims can be realized by each component shown in the embodiments and modifications, either individually or in combination thereof. For example, the first and second components described in the claims may be realized by the hose 138 and genko 140 of the embodiment, respectively. Alternatively, for example, the first and second components described in the claims may be realized by the genko 140 and hose 138 of modification 3, respectively. [Explanation of symbols]

[0069] 100 Electrical stimulator, 102 Wearing device, 104 Electrical stimulator, 106 Electrode, 108 Control unit, 128 Electrode side connector, 130 Conductive member, 136 Control unit side connector, 138 Thin, 140 Genko.

Claims

1. An electrode section for applying electrical stimulation, A control unit that supplies power to the electrode section, Equipped with, The electrode portion includes a conductive cloth that comes into contact with the user's body, and an electrode portion-side connector fixed to the conductive cloth and detachably connected to the control unit-side connector. The conductive fabric is supplied with power from the control unit via the electrode-side connection portion. The electrode portion further includes a conductive member having higher corrosion resistance than the electrode portion side connection portion between the conductive fabric and the electrode portion side connection portion. The conductive member is a material that does not allow moisture to pass through. Electrical stimulation device.

2. The electrode-side connection part is either the male or female part of a snap button. The control unit side connection is the other half of the male and female snap buttons. The electrical stimulation device according to claim 1.

3. The conductive member is softer than the electrode-side connection portion. The electrical stimulation device according to claim 1 or 2.

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