Electrical muscle stimulation device

Abstract

The present invention provides a muscle electrical stimulation device that can be easily prepared before use and arranged after use. The muscle electrical stimulation device (EMS device) (1) comprises: a first electrode portion (2a) and a second electrode portion (2b); a control unit (3) configured to supply power to the electrode portion (2); an electrode holder (4) that holds the electrode portion (2); and an electrode covering (5) that covers the electrode portion (2). The electrode covering (5) is configured to expose the electrode portion (2) when the muscle electrical stimulation device (1) is used. The electrode holder (4) is configured so that its surface (42) can be deformed in a manner along the user's body when the electrode portion (2) is pressed against the user's body.

Description

Technical Field

[0001] The present invention relates to a muscle electrical stimulation device. Background Art

[0002] The muscle electrical stimulation device has electrodes that are in contact with the user's body. The muscle electrical stimulation device is configured to provide electrical stimulation to the user's muscles by flowing a weak current through the electrodes to the user's body. For example, the electrical stimulation device described in Japanese Patent Publication No. 2016-93265 is characterized by having: a belt-shaped mounting portion that is wound around the user's body; an electrode portion that provides electrical stimulation to the body; a control portion that controls the electrical signal supplied to the electrode portion; a soft wire portion that connects the electrode portion and the control portion; and a prevention portion that prevents the soft wire portion from contacting the body.

[0003] However, as disclosed in Japanese Patent Publication No. 2016-93265, for an electrical stimulation device that is configured to be mounted on the body for use, it is necessary to mount the electrical stimulation device on the body before use. In addition, after use, it is necessary to remove the electrical stimulation device from the body. Thus, for an electrical stimulation device that is configured to be mounted on the body for use, cumbersome preparations before use and arrangements after use are required. Therefore, a muscle electrical stimulation device that can more easily perform preparations before use and arrangements after use is desired. Summary of the invention

[0004] The present invention has been made in view of this background. An object of the present invention is to provide a muscle electrical stimulation device that can be easily prepared before use and arranged after use.

[0005] A muscle electrical stimulation device according to one embodiment of the present invention is a muscle electrical stimulation device for providing electrical stimulation to the muscles of a user, wherein the device comprises: a first electrode portion and a second electrode portion; a control unit configured to supply power to the first electrode portion and the second electrode portion; an electrode holder configured to hold the first electrode portion and the second electrode portion; and an electrode covering portion covering the first electrode portion and the second electrode portion, wherein the electrode covering portion is configured to expose the first electrode portion and the second electrode portion when the muscle electrical stimulation device is in use, and wherein the electrode holder is configured such that when the first electrode portion and the second electrode portion are pressed against the body of the user, the surface of the electrode holder is deformed in a manner along the body of the user.

[0006] The above-mentioned muscle electrical stimulation (hereinafter also referred to as "EMS") device comprises: a first electrode portion and a second electrode portion; an electrode holder for holding the above-mentioned electrode portion; and an electrode covering body covering the electrode portion. In addition, the electrode covering body is configured to expose the electrode portion when the EMS device is used. Therefore, when using the EMS device, the user can prepare for EMS by a simple operation of exposing the electrode portion and pressing the electrode portion to the part to be electrically stimulated.

[0007] In addition, the electrode holder is configured so that when the electrode portion is pressed against the user's body, the surface of the electrode holder is deformed along the user's body. Therefore, even when the electrode portion is pressed against a relatively large curved portion of the body such as the thigh or calf, the electrode holder and the electrode portion provided on the surface thereof can easily deform following the shape of the user's body. Therefore, the contact area between the electrode portion and the user's body can be fully expanded. As a result, the contact resistance between the electrode portion and the user's body can be easily reduced.

[0008] Furthermore, the electrode package is configured to cover the electrode portion. Therefore, after the EMS is finished, the user can tidy up the EMS device by a simple operation of pulling the electrode portion away from the body and covering the electrode portion with the electrode package.

[0009] As described above, according to the above aspect, it is possible to provide a muscle electrical stimulation device that can be easily prepared before use and arranged after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a stereoscopic diagram of the muscle electrical stimulation device in Example 1.

[0011] Figure 2 This is a top view of the muscle electrical stimulation device in Example 1.

[0012] Figure 3 yes Figure 2 Partial cross-sectional view along line III-III.

[0013] Figure 4 yes Figure 2 Partial cross-sectional view along line IV-IV.

[0014] Figure 5 This is an explanatory diagram showing an example of how to use the muscle electrical stimulation device in Example 1.

[0015] Figure 6 This is a block diagram of the muscle electrical stimulation device in Example 1.

[0016] Figure 7 This is a flow chart of the operation of the muscle electrical stimulation device in Example 1.

[0017] Figure 8 This is a three-dimensional view of the muscle electrical stimulation device in Example 2 in which the electrode package and the electrode retaining body are integrally formed.

[0018] Fig. 9 This is a three-dimensional view of the muscle electrical stimulation device in Example 3 having a first electrode portion and a second electrode portion in a form different from that of the other examples.

[0019] Description of Reference Numerals

[0020] 1. 102, 103... muscle electrical stimulation device; 2a, 203a... first electrode portion; 2b, 203b... second electrode portion; 3. 303... control unit; 4... electrode holder; 5. 502... electrode covering body. DETAILED DESCRIPTION

[0021] The specific form of the EMS device is not particularly limited. The EMS device can be configured so that the surface of the electrode holder is deformed along the user's body when the electrode holder is pressed against the user's body. The EMS device can be in various forms, such as a cushion filled with fiber, feather, soft resin foam or beads in the cover, an air cushion filled with air in the outer skin, and a water cushion filled with water in the outer skin.

[0022] The EMS device has a first electrode portion and a second electrode portion for applying electrical stimulation to the muscles of the user. The electrode portion is held on the surface of an electrode holder. The EMS device applies voltage to the first electrode portion and the second electrode portion in a manner that generates a potential difference between the first electrode portion and the second electrode portion, thereby forming a loop-shaped current path including the electrode portion, the user's body, and the control unit, thereby applying electrical stimulation to the muscles of the user.

[0023] At least a portion of the first electrode portion and the second electrode portion is made of a conductive material. The conductive material used for the first electrode portion and the second electrode portion is preferably stretchable. In this case, when the first electrode portion and the second electrode portion are pressed against the user's body, the electrode portion can be deformed to follow the user's body. Therefore, it is easier to ensure electrical contact between the electrode portion and the user's body. As such a conductive material, for example, a conductive elastomer and a conductive cloth to which conductivity is given by a conductive polymer can be cited. From the viewpoint of further reducing the contact resistance with the user's body, the conductive cloth used for the first electrode portion and the second electrode portion preferably has a surface resistivity of less than 100Ω / □, and more preferably has a surface resistivity of less than 80Ω / □.

[0024] The first electrode portion and the second electrode portion preferably have: a conductive cloth joined to the electrode holder; and a waterproof member, which is made of a material that does not penetrate water and is sandwiched between the electrode holder and the conductive cloth. In the case where the electrode portion has the conductive cloth as the conductive material mentioned above, in order to further reduce the contact resistance between the conductive cloth and the user's body, the conductive cloth is sometimes wetted with water before the EMS device is used. In this case, if a waterproof member is provided between the conductive cloth and the electrode holder, it is possible to suppress the penetration of water from the conductive cloth to the electrode holder. Therefore, by sandwiching the waterproof member between the electrode holder and the conductive cloth, the wet state of the conductive cloth can be maintained for a longer period of time.

[0025] As the waterproof member, a material that does not penetrate water when attached can be used. In addition, the waterproof member is configured to deform along the user's body when the first electrode unit and the second electrode unit are pressed against the user's body. More specifically, as the waterproof member, an elastomer, a soft polyurethane foam, and an ethylene vinyl acetate copolymer (EVA) foam can be used.

[0026] The number and configuration of the electrode units in the EMS device are not particularly limited and may take various forms. For example, the EMS device may have a first electrode unit and a second electrode unit disposed at a position away from the first electrode unit. In addition, the EMS device may also have a plurality of first electrode units and a plurality of second electrode units.

[0027] The first electrode portion and the second electrode portion preferably protrude outward from the surface of the electrode holder. In this case, when the electrode portion is pressed against the user's body, the electrode portion and the user's body are more likely to abut. Therefore, in this case, a current path including the first electrode portion, the second electrode portion and the user's body can be formed more stably.

[0028] The first electrode portion and the second electrode portion are held by the electrode holder. In addition, the electrode holder is configured so that when the electrode holder is pressed against the user's body, its surface can be deformed along the user's body. Thus, the contact area between the first electrode portion and the second electrode portion and the user's body can be fully expanded, so that it is easier to provide electrical stimulation to the user.

[0029] The electrode holder is preferably configured to return to its original shape by leaving the user's body after being deformed by being pressed against the user's body. If the user presses the electrode holder configured in this way against the user's body, causing it to deform along the user's body, the electrode holder will return to its original shape. Then, along with the restoration of the electrode holder, the first electrode portion and the second electrode portion are pressed against the user's body. As a result, the first electrode portion and the second electrode portion can be brought into contact with the user's body more reliably.

[0030] The electrode holder preferably has a hydrophobic portion on the surface of the electrode holder between the first electrode portion and the second electrode portion. As described above, in order to reduce the contact resistance between the electrode portion and the user's body, the user sometimes wets the electrode portion with water before using the EMS device. Even in this case, by providing the hydrophobic portion on the surface of the electrode holder between the first electrode portion and the second electrode portion, it is easier to avoid a short circuit between the first electrode portion and the second electrode portion caused by water.

[0031] The water-repellent portion may be made of any material as long as it is water-repellent. For example, the water-repellent portion may be made of a water-repellent-treated fabric.

[0032] The electrode holder is preferably a pad. That is, the EMS device is preferably configured to be able to be used as a pad. The EMS device configured in this way can be used as a simple pad when EMS is not performed. Therefore, the EMS device can be placed in a daily living space such as a living room without any strange feeling. In addition, with the EMS device, the user can prepare for EMS by a simple operation of pressing the first electrode part and the second electrode part against the user's body. Therefore, according to the EMS device having a pad as an electrode holder, the user can easily perform EMS in the daily living space.

[0033] The EMS device has an electrode covering body covering the first electrode part and the second electrode part. The electrode covering body only needs to cover the electrode part, and its specific structure can take various forms. For example, the electrode covering body can be formed integrally with the electrode holder, or can be configured to be separable from the electrode holder.

[0034] The electrode package is preferably configured so that the user can hold the EMS device while the first electrode portion and the second electrode portion are pressed against the user's body. In this case, when performing EMS, the electrode package can maintain the state in which both the first electrode portion and the second electrode portion are in contact with the user's body. Therefore, the user does not need to press the EMS device against the body during EMS. Therefore, the user can perform operations other than EMS while performing EMS. Therefore, the electrode package configured in this way can further enhance the convenience of the EMS device.

[0035] Preferably, the electrode package has a strip shape, the first end of the electrode package is joined to the electrode holder, and a snap-in portion configured to snap-in with the electrode holder and / or the electrode package is provided at the second end of the electrode package. In this case, when the user uses the EMS device, the electrode portion can be exposed, that is, the EMS device is prepared, by simply removing the snap-in portion provided at the second end from the electrode holder and the electrode package. In addition, after the user ends the EMS, the electrode portion can be covered, that is, the EMS device can be arranged, by simply performing the operation of winding the electrode package around the electrode holder and snap-in the snap-in portion provided at the second end to the electrode holder and / or the electrode package. In addition, when the user performs the EMS, the state in which the first electrode portion and the second electrode portion are in contact with the user's body can be maintained by snapping the snap-in portion provided at the second end to the electrode holder and / or the electrode package while the electrode package is wound around the electrode holder and the user's body. Therefore, according to the EMS device including such an electrode package, the usability for the user can be further improved.

[0036] The specific structure of the engaging portion is not particularly limited and can take various forms. For example, as the engaging portion, a hook, a snap fastener, a buckle, etc. can be used. In this case, by providing an engaged portion corresponding to the engaging portion on the electrode holder and / or the electrode package, the second end of the electrode package can be engaged with the electrode holder and / or the electrode package.

[0037] The control unit of the EMS device is configured to be able to give electrical stimulation to the muscles of the user by supplying power to the electrodes. The control unit is preferably arranged at a position overlapping the inter-electrode region between the first electrode portion and the second electrode portion in the surface of the electrode holder. That is, it is preferred that at least a portion of the control unit is located between the first electrode portion and the second electrode portion. In this case, the operator who assembles the EMS device can more easily perform the operation of electrically connecting the control unit to each electrode portion during assembly. In addition, in this case, for example, in the case where the user uses the EMS device with the first electrode portion and the second electrode portion facing upward, the user can more easily operate the EMS device.

[0038] In addition, the control unit is more preferably arranged at a position overlapping with the center of the inter-electrode area. In this case, for example, when the user wants to perform EMS on the user's legs, by arranging the control unit between the user's left leg and right leg, the electrode part and the legs can be brought into contact. Thus, the user can perform EMS in a more natural posture.

[0039] Preferably, the control unit has a first electrode connecting portion arranged at a position overlapping with the first electrode portion and a second electrode connecting portion arranged at a position overlapping with the second electrode portion, the first electrode connecting portion constitutes at least a portion of the current path between the control unit and the first electrode portion, and the second electrode connecting portion constitutes at least a portion of the current path between the control unit and the second electrode portion. In this case, the control unit and each electrode portion can be electrically connected via the electrode connecting portion. Therefore, it is not necessary to use an electric wire for the connection between the control unit and each electrode portion. Therefore, it is possible to avoid disconnection caused by deformation of the electrode portion and / or the electrode holder.

[0040] The first electrode portion and the second electrode portion preferably have symmetrical shapes with respect to a straight line connecting the center of the first electrode connecting portion and the center of the second electrode connecting portion. In this case, local current deviation in each electrode portion when current flows through the first electrode portion and the second electrode portion can be further reduced.

[0041] In the case where the EMS device has a strip-shaped electrode package, it is preferred that the first electrode portion and the second electrode portion extend in a direction parallel to the long side direction of the electrode package, and the control unit is arranged at a position on the surface of the electrode holder that overlaps with the inter-electrode region between the first electrode portion and the second electrode portion. By using the EMS device, the user can more easily distinguish between a body part that can easily be wound around the electrode package when pressed against the electrode portion and a body part that is difficult to be wound around the electrode package when pressed against the electrode portion. Therefore, the user's use form of the EMS device can be more easily guided to the form intended by the designer of the EMS device.

[0042] Preferably, the control unit is detachably mounted on the surface of the electrode holder. In this case, the user can prevent the EMS device from unexpected operation by removing the control unit from the EMS device.

[0043] The form of the electrical stimulation given by the control unit is not particularly limited and can take various forms. For example, the control unit can be configured to provide pulsed electrical stimulation to the muscles of the user by switching the supply and stop of power to the electrodes. In addition, the control unit can also be configured to provide periodic electrical stimulation to the muscles of the user by periodically changing the potential of the electrodes.

[0044] The control unit may also be configured to control the overall operation of the EMS device in addition to switching the supply and stop of power to the electrodes. For example, the control unit may also be configured to communicate with a wearable terminal configured to obtain vital sign data such as the user's body temperature and / or sweat volume, and to control the power supply to the electrodes based on the data obtained by the wearable terminal. In addition, the control unit may also be configured to obtain information related to the use of the EMS device, such as the number of times the user has performed EMS and / or the time, and send the above-mentioned information related to the use of the EMS device to the server. The operation of the control unit can be implemented, for example, by a program maintained in an electronic circuit or a microcomputer.

[0045] (Example 1)

[0046] Reference Figure 1 to Figure 7 An embodiment of the above-mentioned electrical muscle stimulation (hereinafter referred to as "EMS") device is described. Figure 1 As shown, the EMS device 1 of this example comprises: a first electrode portion 2a and a second electrode portion 2b for electrically stimulating the muscles of the user; a control unit 3 configured to supply power to the electrode portion 2; an electrode holder 4 for holding the electrode portion 2; and an electrode covering 5 for covering the electrode portion 2. The electrode covering 5 is configured to expose the electrode portion 2 when the EMS device 1 is used. Figure 5 As shown, the electrode holder 4 is configured such that the surface 42 thereof can be deformed along the body of the user U when the user U presses the electrode portion 2 against the body of the user U.

[0047] like Figure 1 As shown, the EMS device 1 of this example is configured to have a substantially rectangular parallelepiped shape, and can also be used as a mat 41 .

[0048] More specifically, if Figure 3 As shown in FIG. 1 , the electrode holder 4 in the EMS device 1 is a pad 41 having a pad cover 411 and a bare pad 412 accommodated in the pad cover 411, and has a substantially rectangular parallelepiped shape. The padding of the bare pad 412 in the electrode holder 4 is made of polyester fiber. The padding can restore the bare pad 412 to its original shape when the bare pad 412 is squeezed. Thus, the electrode holder 4 is configured to be able to restore to its shape before deformation by leaving the body of the user U after being pressed against the body of the user U and deformed.

[0049] The pad cover 411 in the electrode holder 4 is made of a fleece polyester fabric and has water repellency. A portion of the pad cover 411 constitutes a water repellent portion 43 described below.

[0050] like Figure 1 and Figure 2As shown in FIG. 1 , the EMS device 1 includes two electrode portions 2, namely, a first electrode portion 2a and a second electrode portion 2b. The first electrode portion 2a and the second electrode portion 2b are provided on a pad cover 411 of an electrode holder 4. Figure 2 As shown, the first electrode portion 2a and the second electrode portion 2b are arranged on one surface of the electrode holder 4 at a distance from each other. In addition, the first electrode portion 2a and the second electrode portion 2b extend in a second direction that is perpendicular to the first direction, i.e., the arrangement direction of the first electrode portion 2a and the second electrode portion 2b. More specifically, the first electrode portion 2a and the second electrode portion 2b each have a rectangular shape. In addition, the first electrode portion 2a and the second electrode portion 2b are arranged so that their long sides are opposite to each other and are spaced from each other.

[0051] A water-repellent portion 43 formed of a gasket 411 is provided at a portion of the surface of the electrode holder 4 located between the first electrode portion 2 a and the second electrode portion 2 b .

[0052] like Figure 3 As shown, the first electrode portion 2a protrudes outward from the surface 42 of the electrode holder 4. In addition, the first electrode portion 2a has a conductive cloth 21 joined to the electrode holder 4, and a waterproof member 22. The waterproof member 22 is made of a material that is substantially impermeable to water and is sandwiched between the electrode holder 4 and the conductive cloth 21.

[0053] Although not shown, the second electrode portion 2b protrudes outward from the surface 42 of the electrode holder 4, similarly to the first electrode portion 2a. In addition, the second electrode portion 2b includes a conductive cloth 21 joined to the electrode holder 4, and a waterproof member 22. The waterproof member 22 is made of a material that is substantially impermeable to water, and is interposed between the electrode holder 4 and the conductive cloth 21.

[0054] The conductive cloth 21 in the first electrode portion 2a and the second electrode portion 2b of this example is made of cloth to which a conductive polymer is attached, and has elasticity. In addition, the outer peripheral edge of the conductive cloth 21 is sewn to the pad cover 411. The waterproof member 22 in the first electrode portion 2a and the second electrode portion 2b is made of soft polyurethane foam. The pad cover 411 of this example is configured to be washable in a state with the conductive cloth 21 and the waterproof member 22.

[0055] like Figure 1 As shown, the electrode package 5 in the EMS device 1 of this example is separated from the electrode holder 4. The electrode package 5 is configured to be attachable to the electrode holder 4 and to cover the first electrode portion 2a and the second electrode portion 2b.

[0056] More specifically, the electrode coating 5 is made of cloth and has a ring shape. Therefore, the user can cover the first electrode portion 2a and the second electrode portion 2b with the electrode coating 5 by placing the electrode holder 4 into the ring of the electrode coating 5. In addition, the user can expose the first electrode portion 2a and the second electrode portion 2b by removing the electrode coating 5 from the electrode holder 4 covered by the electrode coating 5.

[0057] And, for example Figure 5 As shown, the user can place the electrode holder 4 and the body of the user U into the loop of the electrode covering 5 while the first electrode portion 2a and the second electrode portion 2b are in contact with the body of the user U. Thus, the user can also hold the EMS device 1 while the first electrode portion 2a and the second electrode portion 2b are pressed against the body of the user U.

[0058] like Figure 1 and Figure 2 As shown, the control unit 3 is detachably mounted on the surface 42 of the electrode holder 4. Figure 2 As shown, the control unit 3 is arranged at a position overlapping with the center of the inter-electrode region 421 existing between the first electrode portion 2a and the second electrode portion 2b on the surface 42 of the electrode holder 4. More specifically, the control unit 3 is arranged on a straight line L that connects the center of the first electrode portion 2a in a direction parallel to the long sides of the first electrode portion 2a and the second electrode portion 2b and the center of the second electrode portion 2b in the same direction.

[0059] In addition, if Figure 4 As shown, the control unit 3 has: a first electrode connection portion 30a, which is arranged at a position overlapping with the first electrode portion 2a; and a second electrode connection portion 30b, which is arranged at a position overlapping with the second electrode portion 2b. The first electrode connection portion 30a constitutes a part of the current path between the control unit 3 and the first electrode portion 2a. The second electrode connection portion 30b constitutes a part of the current path between the control unit 3 and the second electrode portion 2b.

[0060] The center of the first electrode connecting portion 30a and the center of the second electrode connecting portion 30b are respectively arranged on the straight line L (refer to Figure 2 ), the straight line L connects the center of the first electrode portion 2a in a direction parallel to the long sides of the first electrode portion 2a and the second electrode portion 2b and the center of the second electrode portion 2b in the same direction. That is, the straight line connecting the center of the first electrode connecting portion 30a and the center of the second electrode connecting portion 30b and the straight line L connecting the center of the first electrode portion 2a and the center of the second electrode portion 2b are the same straight line. Therefore, as Figure 2As shown, the first electrode portion 2a and the second electrode portion 2b of this example have symmetrical shapes with respect to a straight line connecting the center of the first electrode connecting portion 30a and the center of the second electrode connecting portion 30b.

[0061] Specifically, the first electrode connection portion 30a of this example is the top part of the snap fastener and has conductivity. Figure 4 As shown, the first electrode connection part 30a is configured to be engaged with the bottom part 23a (described later) of the snap fastener provided on the conductive cloth 21a of the first electrode part 2a. The bottom part 23a has conductivity. By engaging the first electrode connection part 30a with the bottom part 23a, a current path including the first electrode connection part 30a and the bottom part 23a is formed between the control unit 3 and the first electrode part 2a.

[0062] Similarly, specifically, the second electrode connection part 30b of this example is the top part of the snap fastener and has conductivity. The second electrode connection part 30b is configured to be embedded with the bottom part 23b of the snap fastener of the conductive cloth 21b provided on the second electrode part 2b. By embedding the second electrode connection part 30b in the bottom part 23b, a current path including the second electrode connection part 30b and the bottom part 23b is formed between the control unit 3 and the second electrode part 2b. In addition, the details of the form of electrical connection between the control unit 3 and the first electrode part 2a and the second electrode part 2b will be described later.

[0063] like Figure 1 and Figure 4 As shown in FIG. 1 , a substrate 31 for supporting the control unit 3 is provided between the control unit 3 and the electrode holder 4. The substrate 31 extends in a direction parallel to the short sides of the first electrode portion 2a and the second electrode portion 2b. Figure 4 As shown, the first end portion 311 of the substrate 31 is disposed on the first electrode portion 2 a , and the second end portion 312 is disposed on the second electrode portion 2 b .

[0064] A welding cloth 211a is sandwiched between the first end 311 of the substrate 31 and the conductive cloth 21a of the first electrode portion 2a. The first end 311 of the substrate 31 and the conductive cloth 21a are joined via the welding cloth 211a. In addition, a bottom member 23a of a snap fastener is provided on the first end 311 of the substrate 31 and the conductive cloth 21a.

[0065] The bottom member 23a is composed of a column 231a and a stud 232a, and has conductivity. The column 231a is mounted on the conductive cloth 21a side in the stacking direction of the substrate 31 and the conductive cloth 21a. The front end of the column 231a penetrates the conductive cloth 21a and the substrate 31 and protrudes from the substrate 31. In addition, a gasket 24a made of conductive silicone is provided between the column 231a and the conductive cloth 21a. The stud 232a is mounted on the substrate 31 side in the stacking direction of the substrate 31 and the conductive cloth 21a. The stud 232a is mechanically fastened to the portion of the column 231a protruding from the substrate 31.

[0066] Therefore, by attaching the first electrode connection portion 30a of the control unit 3 to the bottom member 23a, a current path including the first electrode connection portion 30a, the bottom member 23a, and the gasket 24a is formed between the control unit 3 and the first electrode portion 2a. The control unit 3 and the first electrode portion 2a are electrically connected via this current path.

[0067] The bonding form of the second end 312 of the substrate 31 and the conductive cloth 21b of the second electrode portion 2b is the same as the bonding form of the first end 311 of the substrate 31 and the first electrode portion 2a described above. That is, the second end 312 of the substrate 31 and the conductive cloth 21b are bonded by the welding cloth 211b and the bottom member 23b of the snap fastener. In addition, a gasket 24b made of conductive silicone is provided between the column 231b of the bottom member 23b and the conductive cloth 21b.

[0068] Therefore, by mounting the second electrode connection portion 30b of the control unit 3 on the bottom member 23b, a current path including the second electrode connection portion 30b, the bottom member 23b and the gasket 24b is formed between the control unit 3 and the second electrode portion 2b. The control unit 3 and the second electrode portion 2b are electrically connected via the current path.

[0069] An operation panel 32 is provided on the surface of the control unit 3. The operation panel 32 is for the user to operate the EMS device 1. The control unit 3 is configured so that the user can electrically stimulate the muscles of the user by operating the EMS device 1 via the operation panel 32.

[0070] More specifically, if Figure 6 As shown, the control unit 3 of this example includes an operation panel 32, a control unit 33, a contact detection unit 34, and a power supply unit 35. The control unit 33 is connected to the operation panel 32, the contact detection unit 34, the power supply unit 35, the first electrode unit 2a, and the second electrode unit 2b. The control unit 33 is configured to control the overall operation of the EMS device 1, including the supply of power to the first electrode unit 2a and the second electrode unit 2b. The control unit 33 may also be configured, for example, by an electronic circuit and / or a microcomputer.

[0071] In addition, the control unit 33 of this example is configured to apply voltage to the first electrode portion 2a and the second electrode portion 2b according to a pre-stored motion control program, so that electrical stimulation having a predetermined pattern can be given to the muscles of the user. As the motion control program, for example, a motion control program for the purpose of muscle hypertrophy and a motion control program for the purpose of fat burning can be cited. The control unit 33 can be configured to implement a motion control program. Alternatively, the control unit 33 can also be configured to implement a motion control program selected from a plurality of motion control programs.

[0072] In addition, the specific form of the operation of the control unit 33 will be described later.

[0073] like Figure 2 As shown, the operation panel 32 has an operation switch 321. The operation switch 321 is configured to generate an operation signal for operating the EMS device 1. The operation signal generated by the operation switch 321 is input to the control unit 33. Thus, the user can control the action of the EMS device 1 via the operation panel 32. The operation signal input from the operation panel 32 to the control unit 33 includes, for example, a signal indicating the start of electrical stimulation, a signal for stopping electrical stimulation, a signal for changing the intensity of electrical stimulation, and a signal for changing the motion control program. The above-mentioned operation signal can also be configured to be generated by a single operation switch 321. In addition, a separate operation switch 321 can be provided for each type of operation signal.

[0074] like Figure 6As shown, the contact detection unit 34 is connected to the control unit 33, the first electrode unit 2a, and the second electrode unit 2b. The contact detection unit 34 is configured to be able to distinguish the state in which both the first electrode unit 2a and the second electrode unit 2b are in contact with the user's body, and the state in which at least one of the first electrode unit 2a and the second electrode unit 2b is separated from the user's body, and to be able to notify the control unit 33 whether both the first electrode unit 2a and the second electrode unit 2b are in contact with the user's body. The contact detection unit 34 may also have, for example, a current sensor for measuring the current flowing in the first electrode unit 2a and the second electrode unit 2b. When both the first electrode unit 2a and the second electrode unit 2b are in contact with the user's body, if a voltage is applied to the first electrode unit 2a and the second electrode unit 2b, the current flows to the current path including the first electrode unit 2a and the second electrode unit 2b, and the user's body. Therefore, in this case, the contact detection unit 34 can distinguish the state in which both the first electrode unit 2a and the second electrode unit 2b are in contact with the user's body and the state in which at least one of the first electrode unit 2a and the second electrode unit 2b is separated from the user's body based on the magnitude of the current measured by the current sensor. In addition, the contact detection unit 34 can notify the control unit 33 whether both the first electrode unit 2a and the second electrode unit 2b are in contact with the user's body, for example, by inputting the magnitude of the current measured by the current sensor to the control unit 33.

[0075] The power supply unit 35 is connected to the control unit 33, and is configured to supply the control unit 33 with the power required for the control unit 33 to operate. In addition, the control unit 33 is configured to distribute the power supplied from the power supply unit 35 to each part of the EMS device 1, and to operate each part of the EMS device 1. The specific form of the power supply unit 35 is not particularly limited. For example, the power supply unit 35 can be a primary battery, or a secondary battery or a storage device such as a capacitor. In the case of using a storage device as the power supply unit 35, the control unit 3 may also have a charging terminal for charging the storage device. In addition, the storage device may also be configured to be charged by a contactless charging system.

[0076] In addition, the control unit 3 may also include a communication unit 36 ​​configured to communicate with an external device. The communication content of the communication unit 36 ​​is not particularly limited. For example, the communication unit 36 ​​may be configured to send the data stored in the control unit 33 and / or the training history to an external device. In addition, the communication unit 36 ​​may also be configured to receive instructions related to the operation of the EMS device 1 and / or the change of setting information from an external device. In addition, the communication unit 36 ​​may be configured to communicate with an external device by wire, or may be configured to communicate wirelessly.

[0077] Next, refer to Figure 7An example of the method of using and operating the EMS device 1 is described. When using the EMS device 1, the user U operates the EMS device 1 by pressing the first electrode unit 2a and the second electrode unit 2b against the body (step S1). Next, the user selects the type of motion control program by operating the operation panel 32 as needed (step S2).

[0078] When the EMS device 1 is in operation, the control unit 33 applies a pulse voltage to the first electrode unit 2a and the second electrode unit 2b (step S3). At this time, the control unit 33 applies a voltage to the first electrode unit 2a and the second electrode unit 2b in such a manner that the polarity of the first electrode unit 2a becomes a first polarity and the polarity of the second electrode unit 2b becomes a second polarity different from the first polarity. In addition, when the voltage is applied in step S3, the contact detection unit 34 measures the current flowing to the first electrode unit 2a and the second electrode unit 2b (step S4).

[0079] When the first electrode portion 2a and the second electrode portion 2b are both in contact with the user's body, for example, a loop-shaped current path including the first electrode portion 2a, the second electrode portion 2b and the user's body is formed. Therefore, if the first electrode portion 2a and the second electrode portion 2b are externally voltageed in step S3, the current flows to the above-mentioned current path. On the other hand, when at least one of the first electrode portion 2a and the second electrode portion 2b is separated from the user's body, the current does not flow to the above-mentioned current path. Therefore, the control unit 33 can determine whether the above-mentioned electrode portion is in contact with the user's body based on the size of the current flowing to the first electrode portion 2a and the second electrode portion 2b (step S5).

[0080] When the control unit 33 determines in step S5 that at least one of the first electrode unit 2a and the second electrode unit 2b is separated from the user's body (step S5, "No"), it determines whether the elapsed time from step S1 exceeds a preset contact standby time (step S51).

[0081] When the control unit 33 determines in step S51 that the time elapsed from step S1 is less than or equal to the contact standby time (step S51, "No"), the control unit 33 performs steps S3, S4, and S5 again. On the other hand, for example, in the case where the EMS device 1 is misoperated, in step S51, even if the time elapsed from step S1 exceeds the contact standby time, the current does not flow to the above-mentioned current path. Therefore, in this case, the control unit 33 stops the operation of the EMS device 1 (step S51, "Yes").

[0082] When the control unit 33 determines in step S5 that both the first electrode unit 2a and the second electrode unit 2b are in contact with the user's body (step S5, "yes"), the control unit 33 supplies power to the first electrode unit 2a and the second electrode unit 2b according to the motion control program, thereby electrically stimulating the user's muscles (step S6). At this time, the control unit 33 applies voltage to the electrode units in a manner such that the polarity of the first electrode unit 2a becomes the first polarity and the polarity of the second electrode unit 2b becomes the second polarity different from the first polarity, similarly to step S3, thereby electrically stimulating the user's muscles.

[0083] In addition, the control unit 33 determines whether a pre-set end condition is met during the implementation of the electrical stimulation (step S7). As the end condition, for example, the end of the motion control program, the separation of at least one of the first electrode unit 2a and the second electrode unit 2b from the user's body, and the user's instruction to stop the motion control program can be cited. When the end condition is not met (step S7, "no"), the control unit 33 confirms that the electrode unit is in contact with the user's body (step S5) and continues to implement the electrical stimulation. On the other hand, when the end condition is met, the control unit 33 stops the operation of the EMS device 1 (step S7, "yes").

[0084] Next, the effects of the EMS device 1 of this example will be described. Figure 1 As shown, the EMS device 1 includes: a first electrode portion 2a and a second electrode portion 2b; an electrode holder 4 that holds the electrode portion 2; and an electrode covering 5 that covers the electrode portion 2. In addition, the electrode covering 5 is configured to expose the electrode portion 2 when the EMS device 1 is used. Therefore, when using the EMS device 1, the user can prepare for EMS by simply removing the electrode covering 5 from the electrode portion 2 to expose the electrode portion 2 and pressing the electrode portion 2 to the portion to be electrically stimulated.

[0085] In addition, for example Figure 5 As shown, the electrode holder 4 is configured so that when the electrode portion 2 is pressed against the body of the user U, the surface 42 of the electrode holder 4 is deformed along the body of the user U. Therefore, even when the electrode portion 2 is pressed against a relatively large curved portion of the body, the electrode holder 4 and the electrode portion 2 provided on its surface 42 can easily deform following the shape of the body of the user U. Therefore, the contact area between the electrode portion 2 and the body of the user U can be fully expanded. As a result, the contact resistance between the electrode portion 2 and the body of the user U can be easily reduced.

[0086] Furthermore, the electrode package 5 is configured to cover the electrode unit 2. Therefore, after the EMS is finished, the user can tidy up the EMS device 1 by a simple operation of pulling the electrode unit 2 away from the body and covering the electrode unit 2 with the electrode package 5.

[0087] Therefore, according to the EMS device 1, preparation before use and arrangement after use can be easily performed.

[0088] like Figure 3 As shown in FIG. 1 , the first electrode portion 2a and the second electrode portion 2b include: a conductive cloth 21 joined to the electrode holder 4; and a waterproof member 22 made of a material that does not penetrate water and interposed between the electrode holder 4 and the conductive cloth 21. Therefore, before the EMS device 1 is used, when the conductive cloth 21 is wetted with water, the penetration of water from the conductive cloth 21 to the electrode holder 4 can be suppressed by the waterproof member 22. As a result, the wetted state of the conductive cloth 21 can be maintained for a longer period of time.

[0089] The first electrode portion 2a and the second electrode portion 2b protrude outward from the surface 42 of the electrode holder 4. Therefore, when the electrode portion 2 is pressed against the user's body, the electrode portion 2 and the user's body are more likely to abut against each other. As a result, the EMS device 1 can more stably form a current path including the first electrode portion 2a, the second electrode portion 2b, and the user's body.

[0090] The electrode holder 4 is configured to be deformed by being pressed against the user's body and then return to the shape before the deformation by moving away from the user's body. Therefore, when the electrode holder 4 is deformed by being pressed against the user's body, the first electrode portion 2a and the second electrode portion 2b are pressed against the user's body as the electrode holder 4 attempts to return to the shape before the deformation. As a result, the first electrode portion 2a and the second electrode portion 2b can be brought into contact with the user's body more reliably.

[0091] The electrode holder 4 has a hydrophobic portion 43 at a portion of its surface 42 located between the first electrode portion 2a and the second electrode portion 2b. Therefore, even if the user wets the electrode portion 2 with water before using the EMS device 1, a short circuit between the first electrode portion 2a and the second electrode portion 2b caused by water can be more easily avoided.

[0092] The electrode holder 4 in the EMS device 1 of this example is a pad 41. Therefore, the EMS device 1 is configured to be able to be used as a pad 41. Therefore, the EMS device 1 of this example can be used as a simple pad 41 when EMS is not performed. Therefore, the EMS device 1 can be placed in a daily living space such as a living room without any strange feeling. In addition, with the EMS device 1, the user can prepare for EMS by a simple operation such as pressing the first electrode portion 2a and the second electrode portion 2b to the user's body. Therefore, according to the EMS device 1 having the pad 41 as the electrode holder 4, the user can easily perform EMS in the daily living space.

[0093] like Figure 5 As shown, the electrode package 5 is configured so that the user can hold the EMS device 1 in a state where the first electrode portion 2a and the second electrode portion 2b are pressed against the body of the user U. Therefore, when performing EMS, the electrode package 5 can maintain the state where both the first electrode portion 2a and the second electrode portion 2b are in contact with the body of the user U. As a result, the electrode package 5 can further improve the convenience of the EMS device 1.

[0094] like Figure 2 As shown, the control unit 3 is arranged at a position overlapping with the center of the inter-electrode region 421 in the surface 42 of the electrode holder 4. Therefore, the operator who assembles the EMS device 1 can more easily perform the operation of electrically connecting the control unit 3 and the electrode unit 2 during assembly. In addition, for example, in the case where the user uses the EMS device 1 in a posture such that the first electrode unit 2a and the second electrode unit 2b face upward, the user can more easily operate the EMS device 1. In addition, the control unit 3 is arranged at a position overlapping with the center of the inter-electrode region 421, so that, for example, when the user wants to perform EMS on the user's legs, by arranging the control unit 3 between the user's left leg and right leg, the electrode unit 2 and the legs can be brought into contact. As a result, the user can perform EMS in a more natural posture.

[0095] The control unit 3 has a first electrode connection portion 30a disposed at a position overlapping with the first electrode portion 2a, and a second electrode connection portion 30b disposed at a position overlapping with the second electrode portion 2b. In addition, the first electrode connection portion 30a constitutes at least a portion of the current path between the control unit 3 and the first electrode portion 2a. And, the second electrode connection portion 30b constitutes at least a portion of the current path between the control unit 3 and the second electrode portion 2b. Therefore, the control unit 3 and the electrode portion 2 can be electrically connected without using wires. As a result, disconnection caused by deformation of the electrode portion 2 and / or the electrode holder 4 can be avoided.

[0096] The first electrode portion 2a and the second electrode portion 2b have a symmetrical shape with respect to the straight line L connecting the center of the first electrode connecting portion 30a and the center of the second electrode connecting portion 30b. Therefore, it is possible to further reduce the local current deviation in each electrode portion 2 when the current flows to the first electrode portion 2a and the second electrode portion 2b. Therefore, for example, when the user places the control unit 3 between the user's left leg and right leg and presses the electrode portion 2 against the user's leg, it is possible to easily reduce the difference between the intensity of the electrical stimulation applied to the left leg and the intensity of the electrical stimulation applied to the right leg.

[0097] The control unit 3 is detachably mounted on the surface 42 of the electrode holder 4. Therefore, by removing the control unit 3 from the EMS device 1, it is possible to prevent the EMS device 1 from being accidentally actuated.

[0098] (Example 2)

[0099] In this example, an example of an EMS device 102 in which an electrode package 502 is integrally formed with an electrode holder 4 is described. In addition, unless otherwise specified, the same reference numerals as those used in the examples described above represent the same components as those in the examples described above.

[0100] like Figure 8 As shown, the EMS device 102 of this example comprises: an electrode holder 4 having a substantially rectangular parallelepiped shape; a first electrode portion 2a and a second electrode portion 2b provided on one surface of the electrode holder 4; and a control unit 3 detachably mounted on the surface of the electrode holder 4. The configuration and structure of the above-mentioned parts in the EMS device 102 of this example are the same as the configuration and structure of the corresponding parts in the EMS device 1 of Example 1.

[0101] The electrode package 502 of this example has a strip-like shape extending in a direction parallel to the long sides of the first electrode portion 2a and the second electrode portion 2b. The first end 51 of the electrode package 502 is joined to the electrode holder 4. A snap-fitting portion 521 configured to be snap-fitted with the electrode holder 4 and / or the electrode package 502 is provided at the second end 52 of the electrode package 502. Specifically, the snap-fitting portion 521 in the electrode package 502 of this example is a buckle. In addition, although not shown in the figure, an engaged portion that is engaged with the snap-fitting portion 521 is provided on the back side of the surface of the electrode holder 4 on which the electrode portion 2 is provided. The snap-fitting portion 521 is configured to be snap-fitted to the electrode holder 4 by contacting with the engaged portion provided on the electrode holder 4. The engaging portion 521 is configured so that the engagement between the engaging portion 521 and the electrode holder 4 can be released by the user peeling the engaging portion 521 from the engaged portion in a state where the engaging portion 521 and the electrode holder 4 are engaged.

[0102] When using the EMS device 102 of this example, the user peels off the engaging portion 521 from the engaged portion to expose the first electrode portion 2a and the second electrode portion 2b while the engaging portion 521 and the electrode holder 4 are engaged. In addition, after exposing the first electrode portion 2a and the second electrode portion 2b, the user winds the electrode coating 502 around the user's body and the electrode holder 4 while the user's body and the electrode portion 2 are in contact, thereby maintaining the user's body and the electrode portion 2 in contact.

[0103] When finishing after the EMS is completed, the user may wind the electrode package 502 around the electrode holder 4 so as to cover the first electrode portion 2a and the second electrode portion 2b, and engage the engaging portion 521 with the engaged portion.

[0104] Thus, the electrode package 502 of this example has a strip shape, and the first end 51 of the electrode package 502 is joined to the electrode holder 4. In addition, the second end 52 of the electrode package 502 is provided with an engaging portion 521 configured to engage with the electrode holder 4 and / or the electrode package 502. Therefore, when the user uses the EMS device 102, the electrode portion 2 can be exposed by a simple operation of removing the engaging portion 521 provided at the second end 52 from the electrode holder 4 and the electrode package 502, that is, the EMS device 102 can be prepared.

[0105] In addition, after the EMS is finished, the user can wrap the electrode part 2, that is, organize the EMS device 102, by simply winding the electrode package 502 around the electrode holder 4 and engaging the engaging part 521 provided at the second end 52 with the electrode holder 4 and / or the electrode package 502. Furthermore, when the user is performing EMS, the first electrode part 2a and the second electrode part 2b can be kept in contact with the user's body by engaging the engaging part 521 provided at the second end 52 with the electrode holder 4 and / or the electrode package 502 while the electrode package 502 is wound around the electrode holder 4 and the user's body.

[0106] In addition, the EMS device 102 has a strip-shaped electrode package 502. In addition, the first electrode portion 2a and the second electrode portion 2b extend in a direction parallel to the long side direction of the electrode package 502. Moreover, the control unit 3 is arranged at a position overlapping with the inter-electrode region 421 existing between the first electrode portion 2a and the second electrode portion 2b in the surface 42 of the electrode holder 4. Therefore, when the user uses the EMS device 102, it is easier to distinguish between a body part that can easily be wound around the electrode package 502 in a state pressed against the electrode portion 2, and a body part that is difficult to be wound around the electrode package 502 in a state pressed against the electrode portion 2. Therefore, the user's use form of the EMS device 102 can be more easily guided to the form intended by the designer of the EMS device 102.

[0107] Therefore, the EMS device 102 of this example has a more excellent usability. In addition, the EMS device 102 of this example can achieve the same effects as the EMS device 1 of the first embodiment.

[0108] (Example 3)

[0109] In this example, other examples of the first electrode unit and the second electrode unit are described. Fig. 9 As shown, the EMS device 103 of this example includes: an electrode holder 4 having a substantially rectangular parallelepiped shape; and an electrode coating 502 having a strip shape. The first end 51 of the electrode coating 502 is joined to the electrode holder 4. The second end 52 of the electrode coating 502 is provided with an engaging portion 521 configured to engage with the electrode holder 4 and / or the electrode coating 502. The configuration and structure of the above-mentioned parts in the EMS device 103 of this example are the same as the configuration and structure of the corresponding parts in the EMS device 102 of Example 2.

[0110] A first electrode portion 203a and a second electrode portion 203b are provided on one surface of the electrode holder 4. The first electrode portion 203a and the second electrode portion 203b have, for example, rectangular (e.g., square) shapes, respectively. The first electrode portion 203a and the second electrode portion 203b are arranged on one surface of the electrode holder 4 at intervals from each other. In addition, the first electrode portion 203a has a first wire portion 25a extending toward the second electrode portion 203b. The front end of the first wire portion 25a is arranged at a position overlapping with the control unit 303 described later. Similarly, the second electrode portion 203b has a second wire portion 25b extending toward the first electrode portion 203a. The front end of the second wire portion 25b is arranged at a position overlapping with the control unit 303 described later.

[0111] The EMS device 103 has a control unit 303. The control unit 303 of this example is arranged at a position overlapping with the inter-electrode region 421 existing between the first electrode portion 203a and the second electrode portion 203b. In addition, although not shown in the figure, the control unit 303 has a first electrode connection portion provided at a position overlapping with the first wire portion 25a, and a second electrode connection portion provided at a position overlapping with the second wire portion 25b. The first electrode connection portion constitutes a part of the current path between the control unit 303 and the first electrode portion 203a. The second electrode connection portion constitutes a part of the current path between the control unit 303 and the second electrode portion 203b. The other structures of the EMS device 103 are the same as those of the EMS device 1 of Example 1.

[0112] The EMS device 103 of this example can achieve the same effects as the EMS device 102 of the second embodiment.

[0113] The above described the EMS device based on Embodiments 1 to 3. However, the specific embodiment of the EMS device according to the present invention is not limited to the embodiment. The structure of the above embodiment can be appropriately changed within the scope of not impairing the gist of the present invention.

[0114] For example, the EMS device according to the present invention may take the forms described in the following [1] to

[11] .

[0115] [1] A muscle electrical stimulation device for providing electrical stimulation to the muscles of a user, comprising: a first electrode portion and a second electrode portion; a control unit configured to supply power to the first electrode portion and the second electrode portion; an electrode holder configured to hold the first electrode portion and the second electrode portion; and an electrode covering member configured to cover the first electrode portion and the second electrode portion, wherein the electrode covering member is configured to expose the first electrode portion and the second electrode portion when the muscle electrical stimulation device is in use, and wherein the electrode holder is configured such that when the first electrode portion and the second electrode portion are pressed against the body of the user, the surface of the electrode holder is deformed in a manner along the body of the user.

[0116] [2] The muscle electrical stimulation device according to [1], wherein the electrode covering is configured to hold the muscle electrical stimulation device in a state where the first electrode portion and the second electrode portion are pressed against the user's body.

[0117] [3] A muscle electrical stimulation device according to [1] or [2], wherein the electrode covering has a strip shape, a first end of the electrode covering is joined to the electrode holding body, and a snap-fitting portion is provided at the second end of the electrode covering, wherein the snap-fitting portion is configured to snap-fit ​​with the electrode holding body and / or the electrode covering.

[0118] [4] A muscle electrical stimulation device according to any one of [1] to [3], wherein the control unit is arranged at a position on the surface of the electrode holder that overlaps with an inter-electrode area between the first electrode portion and the second electrode portion.

[0119] [5] A muscle electrical stimulation device according to [4], wherein the control unit is arranged at a position overlapping with the center of the inter-electrode area.

[0120] [6] A muscle electrical stimulation device according to any one of [1] to [5], wherein the control unit comprises: a first electrode connecting portion, which is arranged at a position overlapping with the first electrode portion; and a second electrode connecting portion, which is arranged at a position overlapping with the second electrode portion, wherein the first electrode connecting portion constitutes at least a part of the current path between the control unit and the first electrode portion, and the second electrode connecting portion constitutes at least a part of the current path between the control unit and the second electrode portion.

[0121] [7] A muscle electrical stimulation device according to [6], wherein the first electrode portion and the second electrode portion have a shape that is symmetrical with respect to a straight line connecting a center of the first electrode connecting portion and a center of the second electrode connecting portion.

[0122] [8] A muscle electrical stimulation device according to any one of [1] to [7], wherein the control unit is detachably mounted on the surface of the electrode holder.

[0123] [9] A muscle electrical stimulation device according to any one of [1] to [7], wherein the first electrode portion and the second electrode portion protrude outward from the surface of the electrode holder.

[0124]

[10] A muscle electrical stimulation device according to any one of [1] to [9], wherein the first electrode portion and the second electrode portion comprise: a conductive cloth joined to the electrode holder; and a waterproof member made of a material that is impermeable to water and sandwiched between the electrode holder and the conductive cloth.

[0125]

[11] A muscle electrical stimulation device according to any one of [1] to

[10] , wherein the electrode holder has a hydrophobic portion on a portion of its surface located between the first electrode portion and the second electrode portion.

[0126]

[12] A muscle electrical stimulation device according to any one of [1] to

[11] , wherein the electrode holder is configured to return to its pre-deformation shape by leaving the user's body after being deformed by being pressed against the user's body.

[0127]

[13] A muscle electrical stimulation device according to any one of [1] to

[12] , wherein the electrode holder is a pad.

Claims

1. A muscle electrical stimulation device for electrically stimulating the muscles of a user, characterized in that: have: A first electrode portion and a second electrode portion; a control unit configured to supply power to the first electrode unit and the second electrode unit; an electrode holder for holding the first electrode portion and the second electrode portion; as well as an electrode covering body, covering the first electrode portion and the second electrode portion, The electrode covering body is configured to expose the first electrode portion and the second electrode portion when the muscle electrical stimulation device is used. The electrode holder is configured so that a surface of the electrode holder is deformed along the body of the user when the first electrode portion and the second electrode portion are pressed against the body of the user.

2. The muscle electrical stimulation device according to claim 1, characterized in that: The electrode package is configured to be able to hold the electrical muscle stimulation device in a state where the first electrode portion and the second electrode portion are pressed against a user's body.

3. The muscle electrical stimulation device according to claim 1, characterized in that: The electrode package has a strip shape. The first end of the electrode package is joined to the electrode holder. An engaging portion is provided at the second end portion of the electrode package, and the engaging portion is configured to be engageable with the electrode holding body and / or the electrode package.

4. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The control unit is disposed at a position on the surface of the electrode holder that overlaps with an inter-electrode region between the first electrode portion and the second electrode portion.

5. The muscle electrical stimulation device according to claim 4, characterized in that: The control unit is arranged at a position overlapping with the center of the inter-electrode region.

6. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The control unit comprises: a first electrode connection portion provided at a position overlapping with the first electrode portion; and a second electrode connection portion provided at a position overlapping with the second electrode portion. The first electrode connecting portion constitutes at least a part of a current path between the control unit and the first electrode portion, The second electrode connecting portion constitutes at least a part of a current path between the control unit and the second electrode portion.

7. The muscle electrical stimulation device according to claim 6, characterized in that: The first electrode portion and the second electrode portion have shapes that are symmetrical with respect to a straight line connecting a center of the first electrode connecting portion and a center of the second electrode connecting portion.

8. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The control unit is detachably mounted on the surface of the electrode holder.

9. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The first electrode portion and the second electrode portion protrude outward from a surface of the electrode holder.

10. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The first electrode unit and the second electrode unit include: a conductive cloth joined to the electrode holder; and a waterproof member made of a water-impermeable material and interposed between the electrode holder and the conductive cloth.

11. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The electrode holder has a water-repellent portion on a surface thereof located between the first electrode portion and the second electrode portion.

12. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The electrode holder is configured to be pressed against a user's body and deformed, and then to return to its pre-deformation shape by moving away from the user's body.

13. The muscle electrical stimulation device according to any one of claims 1 to 3, characterized in that: The electrode holder is a mat.

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