WO2023210377A1

WO2023210377A1 - Electrostimulation device

Info

Publication number: WO2023210377A1
Application number: PCT/JP2023/014909
Authority: WO
Inventors: 昭裕高木
Original assignee: 株式会社Mtg
Priority date: 2022-04-26
Filing date: 2023-04-12
Publication date: 2023-11-02
Also published as: JP2023161844A; TW202342127A

Abstract

This electrostimulation device comprises: an electrode 106 for applying electrostimulation; and a control unit 108 that supplies power to the electrode 106. The electrode 106 includes: a conductive fabric which is made to contact the body of a user; and an electrode-side connection part 128 that is fixed to the conduction fabric and is connected in a removable manner to a control unit-side connection part 136. The conductive fabric is supplied with power from the control unit 108 via the electrode-side connection part 128. The electrode 106 further includes, between the conductive fabric and the electrode-side connection part 128, a conductive member 130 having a higher corrosion-resistance than that of the electrode-side connection part 128.

Description

electrical stimulation device

The present invention relates to an electrical stimulation device.

Patent Document 1 discloses a muscle stimulation device that applies electrical stimulation to a user's muscles. This muscle stimulator causes muscles to exercise by passing a weak electrical current through them, causing them to tense and relax. Thereby, for example, muscle strength can be strengthened.

Japanese Patent Application Publication No. 2017-006644

Development of cloth electrodes using conductive cloth as electrodes is progressing. Cloth electrodes are used in a state where the conductive cloth is moistened with water, such as by spraying water, in order to stabilize conductivity. In this case, the terminal (ie, metal member) fixed to the conductive cloth corrodes. When the terminal corrodes, its electrical resistance increases and the power supplied to the cloth electrode decreases, making it impossible to provide the intended electrical stimulation.

The present invention has been made under these circumstances, and one exemplary objective of one aspect of the present invention is to provide an electrical stimulation device that can suppress a decrease in the power supplied to the conductive cloth of the cloth electrode.

In order to solve the above problems, an electrical stimulation device according to an embodiment of the present invention includes an electrode section for applying electrical stimulation, and a control unit that supplies 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 connection section that is fixed to the conductive cloth and detachably connected to the control unit side connection section. Electric power is supplied to the conductive cloth from the control unit via the electrode side connection, and the electrode further has a structure between the conductive cloth and the electrode side connection, which has higher corrosion resistance than the electrode side connection. Contains a conductive member.

Note that arbitrary combinations of the above components, and mutual substitution of the components and expressions of the present invention among methods, devices, systems, etc., are also effective as aspects of the present invention.

According to the present invention, it is possible to suppress a decrease in the power supplied to the conductive cloth of the cloth electrode.

FIG. 1 is a perspective view of an electrical stimulation device 100 according to an embodiment. FIG. 2 is a block diagram showing the functional configuration of the electrical stimulation device of FIG. 1. FIG. 2 is a flowchart showing an example of the operation of the electrical stimulation device of FIG. 1. FIG. FIG. 2 is a cross-sectional view showing the electrode portion of FIG. 1 and its surroundings. FIG. 3 is a diagram showing experimental results. It is a sectional view showing an electrode part of an electric stimulation device concerning a modification, and its periphery. It is a sectional view of the electrode part of the electric stimulation device concerning another modification.

Hereinafter, the present invention will be explained based on preferred embodiments with reference to the drawings. The embodiments are illustrative rather than limiting the invention, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention. In the embodiments and modified examples, the same or equivalent components and members are given the same reference numerals, and redundant explanations will be omitted as appropriate.

FIG. 1 is a perspective view of an electrical stimulation device 100 according to an embodiment. The electrical stimulation device 100 is an EMS (Electrical Muscle Stimulation) device that applies electrical stimulation to the user's muscles. The electrical stimulation device 100 includes a mounting tool 102 and an electrical stimulation section 104 attached to the mounting tool 102.

In this embodiment, the mounting tool 102 is configured to be able to be mounted on the abdomen. The attachment tool 102 has a cylindrical shape and is attached to the abdomen so as to surround the abdomen. The mounting tool 102 has elasticity and fits closely to the abdomen. The material of the mounting tool 102 is not particularly limited.

The electrical stimulation section 104 includes a pair of electrode sections 106 and a control unit 108. The pair of electrode portions 106 are provided on the inner peripheral side of the mounting tool 102, specifically at locations corresponding to the rectus abdominis muscles. A pair of electrode sections 106 are electrically connected to a control unit 108. Electric power is supplied to the pair of electrode sections 106 from a control unit 108. The pair of electrode sections 106 apply electrical stimulation to the user's rectus abdominis muscles using the supplied power.

The control unit 108 is detachably attached to the outer circumferential side of the mounting tool 102, in the illustrated example, at a position facing the pair of electrode parts 106 with the mounting tool 102 in between. The housing 110 of the control unit 108 is provided with an operation section 112. The operation unit 112 is operated by the user. When the user operates the operation unit 112, an operation signal corresponding to the operation is generated. A control section 118 (described later) of the control unit 108 executes control based on the operation signal. The operation unit 112 may include a button for increasing or decreasing the level of electrical stimulation.

FIG. 2 is a block diagram showing the functional configuration of the electrical stimulation device 100. Each block shown in Figure 2 can be realized in terms of hardware by elements and mechanical devices such as a computer's CPU (Central Processing Unit), and in terms of software, it can be realized by computer programs, etc. , depicts the functional blocks realized by their cooperation. Therefore, those skilled in the art who have been exposed to this specification will understand that these functional blocks can be realized in various ways by combining hardware and software.

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

The contact detection section 114 detects when the pair of electrode sections 106 are in contact with the skin. In this embodiment, the contact detection section 114 is configured as a current detection section that detects the current flowing between the pair of electrode sections 106. That is, when the pair of electrode sections 106 is in proper contact with the skin, a current flows between the pair of electrode sections 106 through the skin, so that skin contact can be detected by detecting the current.

The communication unit 116 communicates with external devices. The communication unit 116 may be configured as a wireless communication unit or may be configured as a wired communication unit. The purpose of communication is not particularly limited, but may include transmitting data stored in the electrical stimulation device 100 and training history using the electrical stimulation device 100 to an external device, or sending commands regarding the operation of the electrical stimulation device 100 or changing setting information to an external device. can be received from.

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 be a primary battery. Charging terminal 120 receives power for charging battery 122 and outputs it to control unit 118 . Various connectors can be used for charging terminal 120. The battery 122 is charged by the power received at the charging terminal 120. Battery 122 may be configured to be charged by a contactless charging system, such as wireless charging.

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

Further, when the contact detection section 114 detects that the pair of electrode sections 106 are in contact with the skin, the control section 118 controls the control section 118 for a predetermined operation time (for example, 10 minutes) and a predetermined period (for example, 10 minutes) according to the exercise control program. , a period with a frequency of 20 Hz), a voltage is applied between the pair of electrode sections 106. That is, electrical stimulation is applied to the location where each electrode is placed (in this example, the rectus abdominis muscle). The exercise control program has two modes: the first mode, which aims at muscle hypertrophy, mainly applies electrical stimulation at a frequency of 20Hz, and the second mode, which aims at aerobic exercise, mainly applies electrical stimulation at a frequency higher than 20Hz. Apply electrical stimulation at a low frequency (eg, 4-10 Hz). The first mode is based on a frequency of, for example, 20 Hz, and is used for resistance training in which only slow voluntary movements are applied for the purpose of muscle hypertrophy, mainly 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 in which voluntary movements such as bike training are added to involuntary movements caused by electrical stimulation from the electrical stimulation device 100. Cardio training is an aerobic exercise that aims to burn fat by consuming calories and anaerobic exercise through speed movements.

The above is the basic configuration of the electrical stimulation device 100. Next, its operation will be explained.

FIG. 3 is a flowchart showing an example of the operation of the electrical stimulation device 100. FIG. 3 shows a process S100 from when the user turns on the electric stimulation device 100 while wearing it and starts and ends the electric stimulation.

The electric stimulation device 100 is powered on (S102).

The control unit 118 determines whether the electrode unit 106 is in contact with the skin based on the detection result by the contact detection unit 114 (S104). If the electrode section 106 is not in contact with the skin (N in S104), it is determined whether a predetermined skin contact waiting time (for example, 120 seconds) has elapsed (S106). If the predetermined skin contact waiting time has not elapsed (N at S106), the control unit 118 waits for the predetermined waiting time and then returns the process to S104. If the predetermined skin contact waiting time has elapsed without detecting contact with the skin (Y in S106), the process ends. At this time, the electrical stimulation device 100 may be powered off.

If the electrode section 106 is in contact with the skin (Y in S104), the control section 118 starts applying electrical stimulation according to the exercise control program (S108). By applying electrical stimulation, blood flow can be promoted. It is also expected that the muscles will contract continuously and become enlarged.

The control unit 118 determines whether the termination condition is satisfied (S110). The termination condition may be, for example, that the exercise control program has been terminated, that the pair of electrode sections 106 are no longer in contact with the skin, or that a termination instruction has been received from the outside (for example, from the user). good. If the end condition is not satisfied (N in S110), the control unit 118 waits for a predetermined waiting time and then returns the process to the beginning of S108. If the termination condition is satisfied (Y in S110), the process is terminated. At this time, the electrical stimulation device 100 may be powered off.

Next, the electrode section 106 will be explained in more detail.

FIG. 4 is a cross-sectional view showing one of the electrode sections 106 and its surroundings. FIG. 4 shows a state in which the control unit 108 is removed from the mounting tool 102.

The electrode section 106 includes a cushioning material 124, a conductive cloth 126 that covers the cushioning material 124, an electrode section side connection section 128 fixed to the conductive cloth 126, and a conductive member 130.

The outer edge of the conductive cloth 126 is sewn to the mounting tool 102 around the entire circumference. The conductive cloth 126 has conductivity. Although the conductive cloth 126 is not particularly limited, in this embodiment, the conductive cloth 126 includes a cloth 132 and a conductive layer 134 formed on one surface of the cloth 132.

The cloth 132 may be knitted from fibers such as silk or synthetic fibers such as nylon.

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

The conductive cloth 126 may be a cloth knitted from conductive fibers formed by adhering or impregnating a conductive material.

By configuring the electrodes with the conductive cloth 126, electricity can be passed between the pair of electrode parts 106 without attaching a gel pad unlike the electrodes of conventional muscle electrical stimulation devices.

If the conductive cloth 126 is not wet, there is a risk that electrical stimulation will be applied locally to the skin, so wet the conductive cloth 126 with a spray or the like to lightly retain water. This makes it possible to stabilize the electrical conduction state between the pair of electrode sections 106 even when the user 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.

The cushioning material 124 is, for example, a rectangular parallelepiped sponge, and the cushioning material 124 forms a convex shape that is the overall shape of the electrode section 106. Further, by housing the cushion material 124 in the conductive cloth 126, the adhesion between the conductive cloth 126 and the skin can be increased.

The cushion material 124 may have water repellency. When wetting the conductive cloth 126, if the amount of water exceeds the amount that the conductive cloth 126 can retain, water also enters the cushioning material 124 side. If the cushioning material 124 does not have water repellency, water that has entered the cushioning material 124 side is retained by the cushioning material 124 and does not penetrate into the conductive cloth 126. On the other hand, if the cushioning material 124 has water repellency, water that has entered the cushioning material 124 side actively permeates into the conductive cloth 126. Thereby, the conductive cloth 126 can be maintained in a wet state.

The electrode section side connection section 128 is configured to be physically and electrically detachable from the control unit side connection section 136. The control unit side connection section 136 is electrically connected to the control section 118, and is fixed to the casing 110 of the control unit 108 in this example. The control unit 108 is supported by the electrode part side connection part 128 and by extension the mounting tool 102 by connecting the control unit side connection part 136 to the electrode part side connection part 128 .

In this embodiment, the electrode section side connection section 128 and the control unit side connection section 136 constitute a snap button. Specifically, the electrode part side connection part 128 is a male snap button, and includes a socket 138 and a socket 140. The control unit side connection part 136 is a female snap button.

Both the housing 138 and the housing 140 are made of metal such as SUS. The socket 138 is provided on the inner circumferential side of the mounting tool 102, that is, on the same side as the conductive cloth 126 with respect to the mounting tool 102, and the socket 140 is provided on the outer peripheral side of the mounting tool 102, that is, on the opposite side of the electrically conductive cloth 126 with respect to the mounting tool 102. established in

The housing 138 includes a disk portion 142 and a protrusion 144 that projects from the center of the disk portion 142. The protrusion 144 may be hollow or solid. That is, the protrusion 144 may have a cylindrical shape or a columnar shape. In the former case, the tip side (the side of the protrusion 140) of the protrusion 144 may be closed as shown in the figure, or may be open unlike in the figure.

The Genco 140 has a disk portion 152 and a protruding portion 154 protruding from the center of the disk portion 152. The protrusion 154 is hollow.

By caulking the bolt 138 and the bolt 140, the bolt 138 and the bolt 140 (that is, the electrode section side connection portion 128) are fixed to the conductive cloth 126 and the mounting tool 102. Note that the protrusion 144 of the rod 138 passes through the conductive member 130, the conductive cloth 126, the mounting tool 102, and the reinforcing plate 170 in this order and is fitted into the hollow protrusion 144 of the rod 140, and the disc of the rod 138 and the rod 140 The

portions

142 and 152 sandwich the conductive member 130, the conductive cloth 126, the mounting tool 102, and the reinforcing plate 170.

Note that the configurations of the housing 138 and the generator 140 are not limited to this example, and may be configured using known or future available technology.

The conductive member 130 has conductivity. Further, the conductive member 130 is a member that does not allow moisture to pass through. Since the disk portion 142 of the connector 138 and the disk portion 152 of the connector 140 are sandwiched as described above, the conductive member 130 and the surface 142a on the connector 140 side of the disk portion 142 of the connector 138 come into contact, and the conductive member 130 and the conductive layer 134 of the conductive cloth 126 are in contact with each other.

At least a part of the surface 130a of the conductive member 130 on the side of the rod 140 that contacts the conductive cloth 126 is formed of a material having higher corrosion resistance than the rod 138. Corrosion resistance refers to the ability to withstand corrosion. Corrosion refers to the deterioration and wear away of metal materials from the surface due to chemical reactions with water, oxygen, etc. Corrosion resistance may be evaluated using known or future available techniques. The material having higher corrosion resistance than Hoso 138 (made of metal) is typically a non-metal, but may also be a metal.

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

Further, for example, the conductive member 130 may be a member in which a material having the same corrosion resistance as the housing 138 or a material having a corrosion resistance lower than that of the housing 138 is coated with a material having higher corrosion resistance than the housing 138. In this case, the entire conductive member 130 may be coated with a material having higher corrosion resistance than the material 138, or the entire or part of the surface 130a of the conductive member 130 on the side of the material 140 may have a higher corrosion resistance than the material 138. May be coated with expensive material.

Further, for example, the conductive member 130 may be a member in which a material having higher corrosion resistance than the bolt 138 contains a material that is the same as the bolt 138 or has a lower corrosion resistance than the bolt 138. In this case, a part of the surface 130a of the conductive member 130 on the side of the bolt 140 is formed of a material having the same corrosion resistance as the bolt 138 or a material with lower corrosion resistance than the bolt 138, and the other part is made of a material that has a corrosion resistance lower than that of the bolt 138. Made of highly durable material.

In any case, the conductive member 130 makes it possible to supply the electric power supplied to the socket 138 via the control unit side connection part 136 and the power supply 140 to the conductive cloth 126. In addition, since the conductive member 130 is present between the conductive cloth 126 and the disc portion 142 of the housing 138, water sprayed onto the conductive cloth 126 adheres to the conductive cloth 126 side of the disc portion 142 of the housing 138. This can be prevented. This makes it possible to prevent corrosion of the metal 138 and adhesion of sulfur based on the conductive polymer of the conductive layer 134 to the metal 138. On the other hand, as described above, since at least a portion of the surface 130a of the conductive member 130 on the side of the conductor 140 that contacts the conductive layer 134 is formed of a material with high corrosion resistance, the water sprayed on the conductive cloth 126 becomes conductive. Even if it adheres to the surface 130a of the member 130, corrosion of the conductive member 130 can be prevented. In other words, it is possible to prevent the electrical resistance between the disk portion 142 of the rod 138 and the conductive cloth 126 from increasing.

The conductive member 130 is preferably formed in a shape that covers the entire surface of the disc portion of the socket 138 on the side of the socket 140 . Thereby, adhesion of water to the disk portion of the retainer 138 can be further suppressed.

The conductive member 130 preferably has at least the outer surface softer than the rod 138. The conductive member 130 may be a sheet-like elastic body whose entirety or outer surface is mainly made of, for example, silicon and carbon black or graphite. Here, since the cloth 132 of the conductive cloth 126 is woven with warp and weft yarns, depressions are formed between the warp yarns and the weft yarns. Therefore, the surface of the conductive cloth 126 is relatively uneven. When the conductive cloth 126 and the disk portion 142 of the hard metal plate 138 are brought into direct contact, the recesses on the surface of the conductive cloth 126 do not or are difficult to contact with the disk portion 142 of the plate 138. The substantial contact area between the conductive cloth 126 and the disk portion 142 of the thread 138 becomes relatively small, and the electrical resistance becomes relatively large.

On the other hand, when the conductive cloth 126 and the conductive member 130 that is softer than the rod 138 are brought into contact with each other, in an extreme case, the conductive member 130 comes into close contact with the conductive cloth 126 so as to fit into the recess of the conductive cloth 126. , the contact area between the conductive cloth 126 and the conductive member 130 becomes relatively large. Therefore, the electrical resistance between the disk portion 142 of the rod 138 and the conductive cloth 126 is relatively small.

In other words, when the conductive member 130 is provided, the electrical resistance is lower than when the conductive member 130 is not provided, and power consumption can be suppressed.

The inventor conducted an experiment to confirm the effects of the embodiment. FIG. 5 is a diagram showing the experimental results. In the experiment, each of the electrical stimulation devices 100_1 to 100_12 was used repeatedly (used for 23 minutes each time), and the resistance value [Ω] was measured every predetermined number of times of use. From FIG. 5, it can be seen that by providing the conductive member 130, an increase in electrical resistance can be suppressed. Furthermore, when the number of uses is 0, the electrical resistance when the conductive member 130 is provided is smaller than the electrical resistance when the conductive member 130 is not provided. From this, it can be seen that by providing the conductive member 130, the actual contact area with the conductive cloth 126, which has a relatively uneven surface, becomes relatively large, and the electrical resistance becomes small.

The present invention has been described above based on the embodiments. Those skilled in the art will understand that this embodiment is merely an example, and that various modifications can be made to the combinations of the constituent elements and processing processes, and that such modifications are also within the scope of the present disclosure. be. Hereinafter, such modified examples will be explained.

(Modification 1)
FIG. 6 is a cross-sectional view showing the electrode section 106 and its surroundings of the electrical stimulation device 100 according to a modification. In this modification, the mounting tool 102 has a multilayer structure in which an outer material 160 and a lining material 162 are layered. In FIG. 6, the outer fabric 160 and the lining 162 are shown separated from each other for convenience of explanation of the structure, but in reality, the outer fabric 160 and the lining 162 are in close contact with each other and are sewn to each other at appropriate positions.

The electrode portion 106 is provided on the inner circumferential side of the lining 162 except for the bulge 140 of the electrode portion side connection portion 128, and the bulge 140 is provided between the outer material 160 and the lining 162. The retainer 138 has a disk portion 142 and a plurality of protrusions 146 with pointed tips that protrude from the disk portion 142. The plurality of protrusions 146 penetrate the conductive cloth 126 and the mounting tool 102 and fit into the disc part 142.

The control unit 108 is provided on the outer peripheral side of the outer material 160. The control unit side connection part 136 is provided between the outer material 160 and the lining material 162, and is connected to the electrode part side connection part 128 there. The control unit side connection section 136 is electrically connected to the control unit 108 via an electric cable 164.

According to this modification, the same effects as the embodiment can be achieved.

(Modification 2)
The attachment tool 102 only needs to be attachable to the body, and is not limited to that in the embodiment. For example, the wearing tool 102 may be of a belt type and may be worn on the abdomen, arms, legs, or other body parts. For example, the mounting tool 102 may be a clothing type and may be wearable on the upper or lower body.

(Modification 3)
Unlike the embodiment, the electrode section 106 may be detachable from the mounting tool 102. FIG. 7 is a cross-sectional view of the electrode section 106 of an information processing device according to another modification. The electrode part 106 includes a conductive cloth 126 sewn into a bag shape, a cushion material 124 housed therein, and a pair of electrode parts (only one is shown in FIG. 7) fixed to the conductive cloth 126. A side connecting portion 128 is included. The container 138 is provided inside the bag made of conductive cloth 126, and the container 140 is provided outside. A welding cloth 168 is attached to the surface of the conductive cloth 126 facing the thread 138 to increase strength. In this modification, a conductive member 130 is provided between the disk portion 152 of the Genko 140 and the conductive layer 134 on the surface of the conductive cloth 126. Note that if the current also flows through the housing 138, the conductive member 130 may be provided between the housing 138 and the conductive cloth 126 (welded cloth). According to this modification, the same effects as the embodiment can be achieved.

(Modification 4)
Unlike the embodiment and the above-described modification, the conductive member 130 may be formed as a coating layer that covers the conductive cloth 126 side of the

disk portions

142 and 152 of the rod 138 and the rod 140.

(Modification 5)
In the embodiment and the above-mentioned modification, the electrode side connection part 128 is a male snap button, and the control unit side connection part 136 is a female snap button, but the electrode side connection part 128 is a female snap button. The control unit side connection part 136 may be a male snap button. In this case, the electrode part side connection part 128 includes a head and a spring. In addition, the housing 138 and the spring 140 in the embodiment and the above-described modification may be read as a head and a spring, respectively, as appropriate.

(Modification 6)
In the embodiment and the above-described modification, a case has been described in which the electrode section side connection section 128 and the control unit side connection section 136 constitute a snap button, but the present invention is not limited thereto. At least the electrode part side connection part 128 is made of metal, and the electrode part side connection part 128 and the control unit side connection part 136 are configured to be physically and electrically detachable. The unit side connection portion may constitute a fastener other than a snap button.

Any combination of the embodiments and modifications described above is also useful as an embodiment of the present invention. A new embodiment resulting from a combination has the effects of each of the combined embodiments and modifications.

Furthermore, it will be understood by those skilled in the art that the functions to be fulfilled by each of the constituent elements described in the claims are realized by each constituent element shown in the embodiments and modified examples alone or by their cooperation. For example, the first member and the second member described in the claims may be realized by the housing 138 and the housing 140 of the embodiment, respectively. Further, for example, the first member and the second member described in the claims may be realized by the genco 140 and the hoso 138 of modification 3, respectively.

The present invention relates to an electrical stimulation device.

100 Electric stimulation device, 102 Mounting tool, 104 Electric stimulation section, 106 Electrode section, 108 Control unit, 128 Electrode section side connection section, 130 Conductive member, 136 Control unit side connection section, 138 Hoso, 140 Genko.

Claims

an electrode section for applying electrical stimulation;
a control unit that supplies power to the electrode section;
Equipped with
The electrode part includes a conductive cloth that comes into contact with the user's body, and an electrode part side connection part that is fixed to the conductive cloth and detachably connected to a control unit side connection part,
Electric power is supplied to the conductive cloth from the control unit via the electrode side connection part,
The electrode section further includes, between the conductive cloth and the electrode section side connection section, a conductive member having higher corrosion resistance than the electrode section side connection section.
The electrode part side connection part is one of the male and female snap buttons,
The electrical stimulation device according to claim 1, wherein the control unit side connection portion is the other of the male and female snap buttons.
The electrical stimulation device according to claim 1 or 2, wherein the conductive member is softer than the electrode section side connection section.