JP2017006215A - Muscular electrostimulation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a muscular electrostimulation device capable of suppressing a pain felt by a user when a pad becomes unstuck while in use, and urging the user to re-stick a pad before the user feels a pain.SOLUTION: A muscular electrostimulation device 1 includes a plurality each of electrodes 311-323 formed on a base material 33 and gelatinous pads 35 having conductivity and adhesiveness. The muscular electrostimulation device 1 is configured so as to apply electric stimulation to a human body from the electrodes 311-323 through the pads 35. The base material 33 is formed of pad sticking parts 361-373 to which the pads 35 are stuck so as to cover the electrodes 311 and 323. The plurality of electrodes 311-323 include electrodes 311-323 having an area in a range of 10-65% of an area of the pads 35 covering the electrodes 311-323.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an electrical muscular stimulation device.

  Conventionally, it is widely known that muscle contraction occurs when an electric current is applied to muscle fibers. In particular, it is used for the purpose of strengthening muscles in the medical and sports fields. Specifically, a muscle stimulation method is used in which electricity is applied through an electrode attached to a human body, and the muscle is tensioned and relaxed based on an electrical signal. When the stimulation is applied to the muscle, the muscle is warmed and blood circulation is promoted, and waste products generated with the muscle tension are positively discharged from the muscle.

  In Patent Document 1, as a muscular electrical stimulation device that stimulates muscles using an electrical signal, a main body having a power supply and an operation unit, and a pair of base members formed on a base member extending from the main body. And an electrode configured to flow an electric pulse from the electrode to the human body to give muscle stimulation. And a pair of electrode is united by the sheet-like base material in which a main-body part is located. A gel-like pad having adhesiveness and conductivity is affixed to the electrode formed on the base material, and the electrode and the main body are affixed to the human body using the adhesiveness of the pad. The electrode and the human body can be energized using conductivity.

Utility Model Registration No. 3158303

  In the muscular electrical stimulation device disclosed in Patent Document 1, when the adhesive strength of the pad is reduced by repeated use, the electrode may gradually peel from the skin surface during use. As the electrode gradually peels off, the contact portion between the electrode and the skin surface through the pad gradually decreases, and the amount of current per unit area of the contact portion gradually increases. For this reason, when the peeling of the electrode increases and the area of the contact portion decreases, the amount of current per unit area of the contact portion becomes excessively large, and the user may feel pain.

  The present invention has been made in view of such a background, and when the pad is peeled off during use, the user can be prevented from feeling pain, and the pad can be removed before the user feels pain. An object of the present invention is to provide a muscular electrical stimulation device that can prompt re-sticking.

One embodiment of the present invention includes a plurality of electrodes formed on a base material and a gel-like pad having conductivity and adhesiveness, and applies electrical stimulation from the electrodes to the human body through the pads. A muscular electrical stimulation device comprising:
In the base material, a pad pasting part is formed so that the pad covers the electrode,
The plurality of electrodes include an electrode having an area within a range of 10 to 65% of the area of the pad covering the electrodes.

  In the electrical muscular stimulation device, an electrode having an area in the range of 10 to 65% of the area of the pad is provided. In such an electrode, since it is smaller than the pad area, the pad attached to the pad attaching portion has an electrode covering portion covering the electrode and an electrode non-covering portion not covering the electrode. Will be formed. Since the electrode covering portion is in contact with both the electrode and the skin surface, current actively flows from the electrode to the skin surface in contact with the electrode covering portion. On the other hand, since the electrode non-covering portion is provided in a region where no electrode is formed on the base material, current does not actively flow.

  When the adhesive force of the pad is reduced and the electrode covering portion is separated, the contact portion between the electrode and the skin surface through the electrode covering portion gradually decreases, but the electrode uncovered The part is maintained in contact with the skin surface. Therefore, even if the contact portion is reduced, a current-carrying area on the skin surface is ensured through the electrode non-covering portion, so that the amount of current per unit area on the skin surface is prevented from becoming excessively large, and Concentration is eased and it can suppress that a user feels pain.

  On the other hand, when the electrode non-covering portion is separated before the electrode covering portion is separated, the electrode covering portion is maintained in a state of being in contact with the skin surface, so that electric power concentration hardly occurs. Therefore, before the user feels pain, the user is likely to notice the peeling of the pad (electrode non-covering portion). As a result, it is urged to reapply the pad before feeling pain.

  In addition, since the area of the pad is sufficiently larger than the area of the electrode, the electrode can be reliably covered with the pad even if a slight positional deviation occurs when the pad is attached. As a result, the assembly workability can be improved and the electrode can be prevented from being exposed from the pad and directly contacting the skin surface. Further, since the electrode is prevented from being exposed from the pad, it is possible to prevent the hand from coming into direct contact with the electrode when the muscular electrical stimulation device is removed from the human body after using the muscular electrical stimulation device.

  As described above, according to the present invention, when the pad has been peeled off during use, the user can be prevented from feeling pain, and the user can re-apply the pad before feeling pain. It is possible to provide a muscular electrical stimulation device that can be urged.

The front view of the muscular electrical stimulation apparatus in Example 1. FIG. The rear view of the muscular electrical stimulation apparatus in Example 1. FIG. The side view of the muscular electrical stimulation apparatus in Example 1. FIG. (A) is the IVa-IVa line position partial expanded view in FIG. 1, (b) is the IVb-IVb line position partial expanded view in FIG. The schematic diagram explaining the usage condition of the muscular electrical stimulation apparatus in Example 1. FIG. The rear view of the muscular electrical stimulation apparatus in the state which removed the main-body part in Example 1. FIG. The partial back surface enlarged view of the muscular electrical stimulation apparatus in Example 1. FIG. The schematic diagram explaining the peeling aspect of the electrode in Example 1. FIG. 1 is a block diagram showing a configuration of a muscle electrical stimulation device in Embodiment 1. FIG. The figure which shows the basic waveform memorize | stored in the muscular electrical stimulation apparatus in Example 1. FIG. The figure which shows the burst wave output from the muscular electrical stimulation apparatus in Example 1. FIG. The figure which shows the voltage change output from the muscular electrical stimulation apparatus in Example 1. FIG. The flowchart explaining the main operation | movement of the muscular electrical stimulation apparatus in Example 1. FIG. The flowchart explaining the 1st interruption process of the muscular electrical stimulation apparatus in Example 1. FIG. The flowchart explaining the 2nd interruption process of the muscular electrical stimulation apparatus in Example 1. FIG. The flowchart explaining the 3rd interruption process of the muscular electrical stimulation apparatus in Example 1. FIG. The rear view of the muscular electrical stimulation apparatus in the modification 1. The rear view of the muscular electrical stimulation apparatus in the modification 3. The block diagram which shows the structure of the muscular electrical stimulation apparatus in the modification 4. FIG. The rear view of the muscular electrical stimulation apparatus in the modification 5.

  The pad attaching part is formed so as to include an electrode. And by sticking a pad according to a pad sticking part, a pad will be stuck in a proper position so that the whole region of an electrode may be covered. The pad affixing portion is formed so as to have an outer shape that is substantially the same as the outer shape of the pad or is slightly larger than the outer shape of the pad. For example, a part or all of the base material can be made slightly larger than the outer shape of the pad to form a pad pasting portion. In addition, a guide line along the outer shape of the pad can be displayed by printing or the like on a region including the electrode on the base material to form a pad pasting portion. Accordingly, the pad can be attached to an appropriate position using the pad attaching portion as a guide.

  In addition, you may make it provide a pad so that attachment or detachment is possible to a pad sticking part. For example, if the adhesive strength of the pad is reduced or if the pad becomes dirty, remove the pad from the pad attachment section, clean the pad and then attach it to the pad attachment section again, or attach the pad to the pad attachment section. The pad may be removed from the attaching portion and a new pad may be attached to the pad attaching portion. In addition, in the distribution process, the muscular electrical stimulation device is not provided with a pad at the pad affixing portion, and is configured to attach the pad to the pad affixing portion when the user uses or before use. It may be. On the other hand, the pad may be fixed to the pad attaching portion, and the pad may not be removed or may not be assumed to be replaced. Therefore, the electrical muscular stimulation device only needs to be configured such that the pad is attached to the pad attaching portion at least in the use state.

  It is preferable that the pad pasting unit has a pasting position display unit that displays a pasting position of the pad. In this case, it becomes easier to attach the pad to an appropriate position, and the assembling workability is improved.

  It is preferable that the electrode is located on a side close to one end of the pad pasting portion. In this case, even when the pad is peeled off from any place other than the end where the electrode is located, the electrode covering portion covering the electrode in the pad is maintained in contact with the skin surface. Therefore, the concentration of electric power can be made more difficult to occur, and it is easy to suppress the user from feeling pain.

  It is preferable that the one end portion forms an end portion farthest from the center of the base material when the base material is viewed from the front in the attaching portion. In this case, since the plurality of electrodes are positioned on the side closest to the end portion farthest from the center of the base material in each pad attaching portion, it is easy to increase the distance between the electrodes. Therefore, the electrical stimulation output from each electrode is likely to reach more inward muscles in the human body, that is, muscles located deep in the human body from the skin surface. As a result, such muscles can be stimulated efficiently.

  In the present specification, “the center of the substrate when the substrate is viewed from the front” refers to the position of the center of gravity of the substrate when the substrate is viewed from the front. The position of the center of gravity is defined as, for example, the position of the intersection of the straight lines determined by drawing a plurality of straight lines that bisect the area of the base material (the plan view shape of the base material) when the base material is viewed from the front. Shall.

  The plurality of electrodes preferably include one positioned on one side divided by a virtual center line passing through the center of the base material and one positioned on the other side. In this case, since the electrodes are arranged apart from each other with the virtual center line interposed therebetween, the electrical stimulation output from each electrode is more likely to reach the muscle located deep in the human body from the skin surface. As a result, such muscles can be stimulated more efficiently.

Example 1
The muscular electrical stimulation apparatus according to the embodiment will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the electrical muscular stimulation device 1 of this example includes electrodes 311 to 313 and 321 to 323 formed on a base material 33, and a gel-like pad 35 having conductivity and adhesiveness. Are provided in plural. The muscular electrical stimulation device 1 is configured to apply electrical stimulation to the human body 2 (see FIG. 5) from the electrodes 311 to 313 and 321 to 323 via the pad 35.

The base material 33 is formed with pad attaching portions 361 to 363 and 371 to 373 to which the pad 35 is attached so as to cover the electrodes 311 to 313 and 321 to 323.
The plurality of electrodes 311 to 313 and 321 to 323 include electrodes 311 to 313 and 321 to 323 having an area of 10 to 65% of the area of the pad 35 covering the electrodes 311 to 313 and 321 to 323.

Hereinafter, the electrical muscular stimulation device 1 will be described in detail.
The electrical muscular stimulation device 1 of this example is used by being attached to the abdomen 3 of a human body 2 as shown in FIG. In this example, the longitudinal direction of the height of the human body 2 is the height direction Y. The direction from the central axis 2a of the human body 2 that faces the front of the human body 2 and is parallel to the height direction Y and passes through the navel 3a to the right hand 5a side of the human body 2 is the right direction X1, and from the central axis 2a to the human body The direction of 2 toward the left hand 5b is defined as a left direction X2. The right direction X1 and the left direction X2 are collectively referred to as the left-right direction X.

  As shown in FIG. 1, a main body 10 is provided at the center of the electrical muscular stimulation device 1. As shown in FIG.1 and FIG.3, the main-body part 10 has comprised the substantially disk shape. As shown in FIGS. 4A and 4B, the main body 10 includes a case 11 that houses a power supply unit 20 and a control unit 40, which will be described later, and an exterior of the electrical muscular stimulation device 1 attached to the case 11. An outer shell forming body 12 forming a shell.

  As shown in FIG. 4, the outer shell forming body 12 has a surface 12 b on the side where a substrate 33 described later is provided, and an outer surface 12 a on the opposite side. The outer shell forming body 12 is made of an elastomer and is made of black silicon in this example. As will be described later, the electrode support portion 121 is extended from the outer shell forming body 12 so as to cover the front side surface 33 b of the base material 33. Further, as shown in FIG. 1, the outer surface 121 a of the electrode support portion 121 has a colored region 122 that forms a line substantially along the outer edges of electrodes 311 to 313 and 321 to 323 (see FIG. 2) described later. Is formed. In this example, the coloring part 122 is colored orange.

  As shown in FIGS. 4A and 4B, the case 11 is attached to the first case 111 having a concave shape and the first case 111, and the control unit 40 is accommodated between the first case 111 and the case 11. And a second case 112 that forms the storage portion 13 to be formed. Both the first case 111 and the second case 112 are made of ABS. The ribs 112 a erected along the outer edge of the second case 112 are fitted inside the outer edge 111 a of the first case 111 so that the second case 112 is joined to the first case 111.

  As shown in FIGS. 1 and 4B, the first case 111 is formed with a first cantilever 51 a and a second cantilever 51 b that form a part of an operation unit 50 described later. The first cantilever 51 a and the second cantilever 51 b are formed in a cantilevered state by hollowing out a part of the wall of the first case 111. The first cantilever 51a and the second cantilever 51b are arranged in this order from the upper side to the lower side in the height direction Y.

  As shown in FIGS. 1 and 4B, both cantilevers 51 a and 51 b are covered with the outer shell forming body 12. In the outer shell forming body 12, a symbol “+” protrudes immediately above the first cantilever 51 a, and a symbol “−” protrudes immediately above the second cantilever 51 b. An operation surface 54 that forms part of the portion 50 is formed. Due to the arrangement of both cantilevers 51a and 51b, “+” is on the upper side in the height direction Y, and “−” is on the lower side in the height direction Y, making it easy for the user to operate ergonomically.

  As shown in FIGS. 4A and 4B, the storage unit 13 formed between the first case 111 and the second case 112 has a control unit 40 (see FIG. 9). A substrate 41 is accommodated. The control board 41 is a printed board, and a control circuit is formed on the control board 41 by providing a wiring pattern (not shown), an electronic component 42, and the like. The control board 41 is electrically connected to a small surface mount type speaker 43. The drive voltages of the electronic component 42 and the speaker 43 are both 3.0V. Although not shown, the control board 41 is equipped with a booster circuit that boosts the output voltage of the battery 21. Thereby, the power of the battery 21 is boosted to a predetermined voltage (for example, 40 V) and supplied to the electrode unit 30.

  As shown in FIG. 4B, the storage unit 13 also stores a switch mechanism 52 that forms the operation unit 50. The switch mechanism 52 is a tact switch and includes a switch unit 53 that can be pressed. The switch mechanism 52 is electrically connected to the control unit 40. The switch mechanism 52 is disposed immediately below the first cantilever 51a and the second cantilever 51b formed in the first case 111, respectively. As a result, when the first cantilever 51a is pressed from the outside via the operation surface 54 of the outer shell forming body 12 covering the first case 111, the first cantilever 51a in the cantilever state is bent, so that the switch mechanism 52 The switch unit 53 is pressed. When the pressing on the operation surface 54 is released, the first cantilever 51a returns to the original position by the restoring force of the first cantilever 51a in the cantilever state. Similarly, the second cantilever 51b is configured to be pressed and released.

  As shown in FIGS. 4A and 4B, the second case 112 is formed with a battery holding part 14 that holds the battery 21 that constitutes the power supply part 20. As a result, the power supply unit 20 is built in the main body unit 10. The battery 21 is replaceable, and can be, for example, a coin battery or a button battery. In this example, a small and thin coin battery (lithium ion battery CR2032, nominal voltage 3.0 V) is adopted as the battery 21. In addition, it can replace with the said battery 21 and can employ | adopt the battery whose nominal voltage is 3.0-5.0V.

  A lid 15 that prevents the battery 21 from falling off is detachably attached to the battery holding portion 14 that holds the battery 21. The lid 15 has a disk shape that is slightly larger than the battery 21, and an O-ring 16 that seals between the lid 15 and the second case 112 is fitted on the outer periphery thereof. The battery 21 is electrically connected to the control unit 40 via a lead (not shown). As shown in FIG. 2, a plurality of linear grooves 113 extending radially from the outer periphery of the lid 15 are formed in the second case 112 at equal intervals.

  As shown in FIGS. 4A and 4B, the second case 112 is formed with a flange portion 112b that protrudes outside the rib 112a. A sheet-like base material 33 is sandwiched between the flange portion 112b and the outer edge portion 111a of the first case 111 via a waterproof double-sided seal (not shown). The base material 33 is made of PET. As shown in FIG. 6, the center 33 c of the base material 33 opens slightly smaller than the outer shape 10 b of the case 11. And the main-body part 10 is attached to the center 33c. As shown in FIGS. 1 and 3, the front side surface 33 b of the base material 33, which is the surface on which the operation surface 54 is exposed, is covered with the electrode support portion 121 extending from the outer shell forming body 12. And the back side surface 33a on the opposite side to the front side surface 33b in the base material 33 is spread over the entire region on the back side opposite to the surface (front side surface) on the outer shell forming body 12 side in the electrical muscular stimulation device 1. And the base material 33 and the electrode support part 121 are joined by the adhesive tape and silicone adhesion processing agent by 3M company which are not shown in figure.

  As shown in FIGS. 2 and 9, the electrode unit 30 includes a first electrode group 31 and a second electrode group 32. As shown in FIG. 5, the first electrode group 31 extends from the main body 10 so as to be positioned on the right hand side X <b> 1 of the human body 2 with respect to the center line 10 a when attached to the abdomen 3. As shown in FIG. 5, the second electrode group 32 extends from the main body portion 10 so as to be positioned on the left hand side X <b> 2 of the human body 2 with respect to the center line 10 a when attached to the abdominal portion 3. As shown in FIG. 2, the first electrode group 31 includes right electrodes 311 to 313, and the second electrode group 32 includes left electrodes 321 to 323.

  As shown in FIG. 6, the electrodes 311 to 313 and 321 to 323 are made of a silver paste having conductivity on the back side 33 a of the electrode bases 331 to 333 and 341 to 343 formed on the base material 33 as described later. It is formed by printing and coating with a conductive material. More specifically, as shown in FIG. 6, the silver paste is printed on the back surface 33a of the base material 33 in a substantially rectangular shape with rounded corners, and the silver paste printing portions 311b, 312b, 313b, 321b, 322b are printed. 323b are formed. A silicon coating is applied from the approximate center of each of the silver paste printing portions 311b to 323b to a region opposite to the extending direction 331x to 343x of the electrode base portions 331 to 343 (region C indicated by hatching in FIGS. 2 and 6). The region C cannot be electrically connected to the outside. Thereby, among each silver paste printing part 311b-323b, the area | region where the said coating of the extending direction 331x-343x side from the approximate center of each silver paste printing part 311b-323b is not given is each electrode 311-313, 321 to 323. Note that a plurality of silver paste non-printing portions 34 each having a predetermined hexagonal shape are formed at predetermined intervals in each of the silver paste printing portions 311b to 323b.

  In this example, the outer shapes of the electrodes 311 to 313 and 321 to 323 are all substantially rectangular. The width direction of each of the electrodes 311 to 313 and 321 to 323 (for example, the direction indicated by the symbol w in the third right electrode 313) is substantially along the left-right direction X. In this example, each of the electrodes 311 to 313 and 321 to 323 has the same shape. The shape of each of the electrodes 311 to 313 and 321 to 323 can be, for example, a substantially circular shape, a substantially elliptical shape, a substantially polygonal shape, or a combination thereof, in addition to a substantially rectangular shape.

  As shown in FIGS. 2 and 6, the area of each of the electrodes 311 to 313 and 321 to 323 is smaller than the areas of the pad 35 and the pad pasting portions 361 to 373 described later. The area of each electrode 311 to 313, 321 to 323 can be 10 to 65% of the area of the pad 35, preferably 20 to 60%, and more preferably 25 to 50%. The size is 45% of the area of the pad 35 in this example.

  As shown in FIG. 2, lead portions 311 a, 312 a, and 313 a for electrical connection to the power supply unit 20 are pulled out from the main body unit 10 through the control unit 40. Each is formed to be. Similarly, lead portions 321 a, 322 a, and 323 a for connecting to the control unit 40 are respectively formed on the left electrodes 321, 322, and 323 so as to be drawn out from the main body unit 10. The lead portions 311a to 313a and 321a to 323a, like the silver paste printing portions 311b to 323b, are printed with silver paste and subjected to silicon coding so that they cannot be electrically connected to the outside. The right electrodes 311a to 313a connect the right electrodes 311 to 313 in parallel to each other, and the right leads 321a to 323a connect the left electrodes 321 to 323 to each other in parallel.

  As shown in FIG. 2, the electrode part 30 is formed on the base material 33 and is formed integrally with the main body part 10. The electrode unit 30 may be formed so as to be embedded in the base material 33. In this example, the electrode part 30 is formed by printing the conductive ink containing a silver paste on the back side surface 33a of the base material 33 as described above. The first electrode group 31 and the second electrode group 32 include four or more electrodes 311 to 313 and 321 to 323 in total. In this example, the first electrode group 31 and the second electrode group 32 include the same number of electrodes 311 to 313 and 321 to 323, respectively, and the number thereof is three. That is, the first electrode group 31 includes a first right electrode 311, a second right electrode 312, and a third right electrode 313. The second electrode group 32 includes a first left electrode 321, a second left electrode 322, and a third left electrode 323. Then, in the base material 33, the portions where the first right electrode 311, the second right electrode 312 and the third right electrode 313 are formed are respectively, as described above, the first right electrode base 331, the second right electrode base 332 and A portion on which the first left electrode 321, the second left electrode 322, and the third left electrode 323 are formed as the third right electrode base 333, respectively, is a first left electrode base 341, a second left electrode base 342, and a third left side. The electrode base 343 is used.

  As shown in FIG. 6, each of the electrode base portions 331 to 333 and 341 to 343 is formed by extending a sheet-like base material 33 bonded to the main body portion 10 outward. In this example, the electrode bases 331 to 333 extend in the extending directions 331x to 333x toward the right direction X1 so as to be away from the central axis 10a. The extending directions 331x and 332x are slightly upward in the Y direction, and the extending direction 333x is slightly downward in the Y direction. Further, the electrode bases 341 to 343 extend in the extending directions 341x to 343x toward the left direction X2 so as to be separated from the central axis 10a. The extending directions 341x and 342x are slightly upward in the Y direction, and the extending direction 343x is slightly downward in the Y direction. The extending directions 331x to 333x and 341x to 343x of the electrode bases 331 to 333 and 341 to 343 are not limited to these and can be appropriately determined in consideration of the arrangement of the electrodes 311 to 323 and the like.

  Each electrode 311 to 313 and 321 to 323 is affixed with a gel-like pad 35 (“Technogel (registered trademark)” manufactured by Sekisui Plastics Co., Ltd., model number SR-RA240 / 100). The pad 35 has conductivity, and the electrodes 311 to 313 and 321 to 323 can energize the abdomen 3 (see FIG. 5) via the pad 35. Further, the pad 35 has high adhesiveness, and the electrical muscular stimulation device 1 is attached to the abdomen 3 through the pad 35.

  As shown in FIGS. 2, 6, and 7, the outer shape of each pad 35 is larger than the outer shapes of the electrodes 311 to 313 and 321 to 323, and the area of each pad 35 is set to the electrodes 311 to 313. , 321 to 323 are larger than the area. And each pad 35 is affixed on the pad affixing parts 361-363 and 371-373. The pad pasting portions 361 to 363 and 371 to 373 are portions including a region to which the pad 35 is pasted. In this example, the outer shapes of the electrode base portions 331 to 333 and 341 to 343 are set to be equal to the outer shape of the pad 35. By enlarging the circumference, the entire area of the back surface 33a of the electrode base portions 331 to 333 and 341 to 343 is set as pad pasting portions 361 to 363 and 371 to 373.

  As shown in FIG. 6, in the pad pasting portions 361 to 363 and 371 to 373, the electrodes 311 to 313 and 321 to 323 are arranged at one end (this example) in the pad pasting portions 361 to 363 and 371 to 373. Then, it is located in the side close | similar to edge part 361a-363a, 371a-373a). The end 361a is the end farthest from the center 33c of the base material 33 when the base material 33 is viewed from the front as shown in FIG. Similarly, the end portions 362a, 363a, 371a to 373a are also the end portions farthest from the center 33c of the base material 33 when the base material 33 is viewed from the front in the pad attaching portions 362, 363, 371 to 373, respectively. It has become.

  Each pad 35 is affixed to the pad affixing parts 361 to 363 and 371 to 373 and covers the entire area of each of the electrodes 311 to 313 and 321 to 323, respectively. As shown in FIG. 7, the pad 35 includes an electrode covering portion 350 that covers the entire area of the electrode 312 and an electrode non-covering portion 353 that does not cover the electrode 312. The electrode non-covering portion 353 includes a pad extending portion 352 that extends widely from the outer edge 351 a on the opposite side of the extending direction 332 x of the electrode base portion 332 among the outer edge 351 of the electrode covering portion 350.

  As shown in FIG. 7, the extension amount of the pad extension 352 in the electrode non-covering portion 353 (the shortest distance between the outer edge 351a and the outer edge 352a opposite to the extension direction 332x in the pad extension 352) W1 In the electrode non-covering portion 353 of the pad 35, the amount W2 of the outer edge 351 of the electrode covering portion 350 extending from the outer edge 351b on the side of the extending direction 332x of the electrode base portion 332, the extending direction 332x of the electrode base portion 332, and It is sufficiently larger than the extending amounts W3 and W4 from the outer edges 351c and 351d in the direction 332y orthogonal to the thickness direction Z (see FIG. 8). Thereby, the pad extension part 352 extends widely on the side opposite to the extension direction 332x of the electrode base part 332. The pad 35 covering the electrodes 311, 313, and 321 to 323 also includes an electrode covering portion 350 and an electrode non-covering portion 353 including a pad extending portion 352 that are similarly formed.

  In this example, each pad 35 has an outer shape slightly larger than the outer shape of each silver paste printing unit 311b to 323b, and is attached so as to cover the entire area of each silver paste printing unit 311b to 323b. In this example, as shown in FIG. 7, the extension amount W1 of the pad extension portion 352 is substantially the same as the length W0 of the electrode 312 in the extension direction 332x. For this reason, the area of the pad extension 352 is larger than the area of the electrode 312. The same applies to the other electrodes 311, 313, and 321 to 323.

  In this example, the pad 35 is detachably provided on the electrode unit 30. As a result, the pad 35 can be replaced. Therefore, the pad 35 should be replaced as appropriate when the adhesive strength decreases, breaks, or becomes dirty due to use. Can do. Further, the used pad 35 may be replaced with a new one every predetermined period (for example, one month, two months, etc.).

  As shown in FIG. 2, the first right electrode 311, the second right electrode 312, and the third right electrode 313 are all parallel to the height direction Y of the human body 2 (see FIG. 5) and pass through the center of the main body 10. It extends from the main body 10 so as to be positioned on the right hand side X1 (first region G1) of the human body 2 with respect to the line 10a. The first right electrode 311, the second right electrode 312 and the third right electrode 313 are arranged in this order from the upper side to the lower side along the height direction Y.

  On the other hand, the first left electrode 321, the second left electrode 322, and the third left electrode 323 extend from the main body 10 so as to be positioned on the left hand side X2 (second region G2) of the human body 2 with respect to the center line 10a. ing. The first left electrode 321, the second left electrode 322, and the third left electrode 323 are also arranged in this order from the upper side to the lower side along the height direction Y.

  As shown in FIG. 2, the first electrode group 31 and the second electrode group 32 are arranged symmetrically with respect to the center line 10a when attached to the abdomen 3 (see FIG. 5). Has been. That is, the first right electrode 311 and the first left electrode 321 are positioned symmetrically with respect to the center line 10a when attached to the abdomen 3, and the second right electrode 312 and the second left electrode 322 are line symmetrical. The third right electrode 313 and the third left electrode 323 are arranged in line symmetry.

  In addition, as shown in FIG. 2, the first electrode group 31 and the second electrode group 32 are attached to the abdomen 3 (see FIG. 5) in the height direction Y when the first electrode group 31 and the second electrode group 32 are attached. In each of the groups 32, a pair of upper electrode pairs 301 including a first right electrode 311 and a first left electrode 321 located on the uppermost side, a third right electrode 313 and a third left electrode 323 located on the lowermost side, A pair of lower electrodes 303, a pair of second right electrodes 312 and a center electrode 302 formed of a second left electrode 322 located between the upper electrode pair 301 and the lower electrode pair 303. It is comprised so that it may be formed. Accordingly, the upper electrode pair 301, the central electrode pair 302, and the lower electrode pair 303 are arranged in this order from the upper side to the lower side along the height direction Y.

  The center electrode pair 302 protrudes in the direction (left-right direction X) extending from the main body 10 more than the upper electrode pair 301 and the lower electrode pair 303. That is, when attached to the abdomen 3, the second right electrode 312 constituting the central electrode pair 302 is the first right electrode 311 constituting the upper electrode pair 301 and the third right electrode 313 constituting the lower electrode pair 303. It protrudes in the right direction X1. Similarly, the second left electrode 322 constituting the central electrode pair 302 protrudes in the left direction X2 more than the first left electrode 321 constituting the upper electrode pair 301 and the third left electrode 323 constituting the lower electrode pair 303. ing.

  Further, as shown in FIG. 2, the upper electrode pair 301 is inclined in a V shape so as to be positioned on the upper side in the extending direction. As described above, the electrodes 311 to 313 and 321 to 323 have the same size. On the other hand, the right electrode bases 331 to 333 in the base material 33 of the electrode unit 30 are larger than the right electrodes 311 to 313, and the left electrode bases 341 to 343 are larger than the left electrodes 321 to 323. ing.

  Further, as shown in FIG. 2, the upper electrode pair 301 protrudes in the direction (left-right direction X) extending from the main body 10 than the lower electrode pair 303. That is, when attached to the abdominal part 3, the first right electrode 311 constituting the upper electrode pair 301 protrudes in the right direction X 1 from the third right electrode 313 constituting the lower electrode pair 303. Similarly, the first left electrode 321 constituting the upper electrode pair 301 protrudes in the left direction X2 from the third left electrode 323 constituting the lower electrode pair 303.

As shown in FIG. 2, the lower outer edge portion 331a of the first right electrode base portion 331 bulges in the right direction X1, and the lower outer edge portion 341a of the first left electrode base portion 341 bulges in the left direction X2. .
Further, the center outer edge 332a of the second right electrode base 332 is slightly bulged in the right direction X1, and the center outer edge 342a of the second left electrode base 342 is slightly bulged in the left direction X2.
Further, the upper outer edge 333a of the third right electrode base 333 bulges in the right direction X1, and the lower outer edge 333b of the third right electrode base 333 bulges downward (downward in the Y direction). . Further, the upper outer edge 343a of the third left electrode base 343 bulges in the left direction X2, and the lower outer edge 343b of the third left electrode base 343 bulges downward.

  By making the electrode bases 331 to 333 and 341 to 343 in the base material 33 as described above, as shown in FIGS. 1 and 5, when the muscular electrical stimulation device 1 is viewed from the front side, the muscular electrical stimulation device 1 is arranged so as to wrap the rectus abdominis 4 in the abdomen 3 in the left-right direction. Moreover, it can be expected that each muscle is efficiently stimulated by arranging the electrodes in combination with the section 4a of the rectus abdominis 4. Furthermore, by recognizing such a shape, the user can be reminded of an image in which the abdominal part 3 is tightened and the abdominal muscles are broken. Thereby, the effect of the image training for setting it as the abdominal part 3 which the abdominal muscle cracked and tightened by using the muscular electrical stimulation apparatus 1 is acquired. (Improvement of exercise effect by image training is generally well known.)

  In addition, as shown in FIG. 2, a cut portion 17 cut toward the main body portion 10 between the adjacent electrodes 311 to 313 and 321 to 323 in the first electrode group 31 and the second electrode group 32. Is formed. In this example, between the first right electrode 311 and the second right electrode 312, between the second right electrode 312 and the third right electrode 313, between the third right electrode 313 and the third left electrode 323, 3 between the left electrode 323 and the second left electrode 322, between the second left electrode 322 and the first left electrode 321, and between the first left electrode 321 and the first right electrode 311. A cut portion 17 is formed. Furthermore, four through holes 18 are formed around the main body 10.

  Next, as shown in FIGS. 8A and 8B, the case where the second right electrode 312 is peeled off from the skin surface 6 during use in the muscular electrical stimulation device 1 of this example will be described. First, as shown in FIG. 8A, in the normal state, the entire area of the pad 35 is in close contact with the skin surface 6, and the entire area of the second right electrode 312 is applied to the skin surface 6 via the pad 35. Touching. Therefore, the contact portion G between the second right electrode 312 and the skin surface 6 via the pad 35 coincides with the entire area of the electrode covering portion 350.

  Here, the curvature of the skin surface 6 of the abdomen 3 gradually increases in the direction from the navel 3a toward the side belly 3b. In this example, as shown in FIGS. 8A and 8B, the direction from the navel 3a toward the flank 3b substantially coincides with the extending direction 332x of the electrode base 332, and the skin surface 6 The curvature gradually increases along the direction of extension 332x.

  When the adhesive force of the pad 35 is reduced due to repeated use or the like, the second right electrode 312 may be peeled off from the skin surface 6 as shown in FIG. More specifically, at the outer edge 332 b of the electrode base 332 of the base material 33, that is, at the tip in the extending direction 332 x of the electrode base 332, the pad 35 is separated from the skin surface 6, and the second right electrode 312 is separated from the skin surface 6. It begins to peel off. Then, the separation at the second right electrode 312 proceeds in the direction opposite to the extending direction 332x of the electrode base 332. As the peeling progresses, the contact portion G between the second right electrode 312 and the skin surface 6 via the pad 35 gradually decreases. And in the state shown in FIG.8 (b), the contact part G is very small. However, in the pad 35, the electrode covering portion 350 is only in contact with the skin surface 6 through the electrode covering portion 350 at the very small contact portion G, but the pad extending portion 352 is in contact with the skin surface 6. . Therefore, the current from the second right electrode 312 flows to the skin surface 6 through the electrode covering portion 350 and the pad extending portion 352 in the very small contact portion G. Accordingly, even in such a state, the current flowing from the second right electrode 312 to the skin surface 6 is not excessively concentrated, and the user does not feel pain. The same applies to the other electrodes 311, 313, and 321 to 323.

Next, the structure of the muscular electrical stimulation apparatus 1 of this example is demonstrated using a block diagram.
As shown in FIG. 9, the electrical muscular stimulation device 1 includes a power source unit 20, a control unit 40, and an operation unit 50 inside the main body unit 10, and also includes a skin detection unit 402 and a battery voltage detection unit 406.

  Skin detection unit 402 detects whether or not electrode unit 30 is in contact with the skin. Specifically, the skin detection unit 402 is electrically connected to the electrode unit 30 and detects a resistance value between the first electrode group 31 and the second electrode group 32. Then, the detected value is compared with a preset threshold value, and when the detected value is smaller than the threshold value, it is detected that the skin is in contact with the first electrode group 31 and the second electrode group 32.

  The battery voltage detection unit 406 detects the voltage of the battery 21 in the power supply unit 20 and determines whether or not the detected battery voltage V of the battery 21 in the power supply unit 20 is lower than a predetermined threshold value Vm. In this example, the nominal voltage V of the battery 21 is 3.0V, and the threshold value Vm is 2.1V.

  As shown in FIG. 9, the power supply unit 20 includes a battery 21. The control unit 40 includes an output adjustment unit 401, a power-off counter 403, a timer 404, an output mode switching unit 405, and an output mode storage unit 405a. The output adjustment unit 401 adjusts the output voltage (output level) at the electrode unit 30. In this example, the maximum output voltage is 40 V, and the 100% output voltage is set to decrease by 2.0 V every time the output level decreases by one. There are 15 output levels from level 1 to level 15.

  The power-off counter 403 measures an elapsed time after receiving the count start signal. The timer 404 measures an elapsed time after receiving the output start signal. The output mode switching unit 405 switches the output mode in the electrode unit 30 to any one of the first output mode, the second output mode, and the third output mode, and sets the frequency of the burst wave to be output. Part. The output mode storage unit 405a stores a first output mode, a second output mode, and a third output mode. In the first output mode, the second output mode, and the third output mode, a basic waveform as a burst wave pattern having pulse group output interruption periods R1 to R5 is stored in advance, and the output mode storage unit 405a stores the burst wave pattern. A storage unit is configured. Note that the burst wave pattern storage unit 405a includes a definition description of a burst wave waveform on the program.

Next, the output mode in the electrode unit 30 will be described.
First, five burst wave patterns (basic waveforms B1 to B5) shown in FIG. 10 are stored in the output mode storage unit 405a serving as a duration storage unit. Each basic waveform B1 to B5 includes a pulse group output period P and a pulse group output interruption period R1 to R5. That is, the basic waveforms B1 to B5 have a common pulse group output period P, and the lengths of the pulse group output interruption periods R1 to R5 are different.

  In the pulse group output period P, a plurality of rectangular wave pulse signals S1 to S5 are output with output stop times N1 to N5 interposed therebetween. In this example, five rectangular wave pulse signals S1 to S5 are output. That is, the pulse group output period P includes the first rectangular wave pulse signal S1, the first output stop time N1, the second rectangular wave pulse signal S2, the second output stop time N2, and the third rectangular wave pulse signal. S3, third output stop time N3, fourth rectangular wave pulse signal S4, fourth output stop time N4, fifth rectangular wave pulse signal S5, and fifth output stop time N5 are executed in this order.

  In this example, the pulse widths and pulse voltages of the rectangular wave pulse signals S1 to S5 are constant, and the durations of the output stop times N1 to N5 are also constant. In this example, the pulse width of each of the rectangular wave pulse signals S1 to S5 is 100 μs, the pulse voltage is ± 40 V at 100% output, and the duration of the output stop time N1 to N5 is 100 μs. Therefore, the duration of the pulse group output period P is 1 ms. And the voltage polarity in each rectangular wave pulse signal S1-S5 is changed alternately by the order of output. That is, the first rectangular wave pulse signal S1, the third rectangular wave pulse signal S3, and the fifth rectangular wave pulse signal S5 have a positive polarity, and the second rectangular wave pulse signal S2 and the fourth rectangular wave. The pulse signal S4 has a negative polarity.

  As described above, the pulse width of each rectangular wave pulse signal S1 to S5 and the duration of each output stop time N1 to N5 in the pulse group output period P are 100 μs. Therefore, the pulse period of each rectangular wave pulse signal S1 to S5 in the pulse group output period P is 200 μs, which is sufficiently short. Therefore, the user recognizes these rectangular wave pulse signals S1 to S5 as one electrical stimulus. In addition, the frequency of each rectangular wave pulse signal S1-S5 in the pulse group output period P is 5,000 Hz.

  In each of the basic waveforms B1 to B5, no pulse signal is output during the pulse group output interruption periods R1 to R5. The duration of the pulse group output interruption period R1 to R5 is longer than the duration of the pulse group output period P. In this example, as shown in FIG. 10, the duration of the pulse group output period P is 1 ms, and the durations of the pulse group output interruption periods R1 to R5 are 499 ms, 249 ms, 124 ms, 61.5 ms, respectively. 49 ms. Thus, the pulse group output interruption periods R1 to R5 have a very long duration compared to the output stop time in the pulse group output period P.

Therefore, as shown in FIG. 10, the first burst wave (2 Hz) is composed of a pulse group output period P of 1 ms and a pulse group output interruption period R1 of 499 ms. That is, the first burst wave (2 Hz) is output with a frequency of the pulse group output period P of 2 Hz.
The second burst wave (4 Hz) includes a pulse group output period P of 1 ms and a pulse group output interruption period R2 of 249 ms. That is, the second burst wave (4 Hz) is output at a frequency of 4 Hz in the pulse group output period P.
The third burst wave (8 Hz) includes a pulse group output period P of 1 ms and a pulse group output interruption period R3 of 124 ms. That is, the third burst wave (8 Hz) is output at a frequency of 8 Hz in the pulse group output period P.
The fourth burst wave (16 Hz) includes a pulse group output period P of 1 ms and a pulse group output interruption period R4 of 61.5 ms. That is, the fourth burst wave (16 Hz) is output at a frequency of 16 Hz in the pulse group output period P.
The fifth burst wave (20 Hz) includes a pulse group output period P of 1 ms and a pulse group output interruption period R5 of 49 ms. That is, the fifth burst wave (20 Hz) is output with a frequency of 20 Hz in the pulse group output period P.

  Then, by repeatedly outputting the basic waveforms B1 to B5 in a predetermined combination for a predetermined period, as shown in FIGS. 11A to 11E, a predetermined burst wave is output. As described above, since the user recognizes the plurality of rectangular wave pulse signals S1 to S5 in the pulse group output period P as one electrical stimulus, the basic waveform B1 as shown in FIG. In the first burst wave repeating the above, an electrical stimulus having a frequency of 2 Hz is output. Similarly, in the second burst wave that repeats the basic waveform B2, an electrical stimulus with a frequency of 4 Hz is output, and in the third burst wave that repeats the basic waveform B3, an electrical stimulus with a frequency of 8 Hz is output, and the fourth burst repeats the basic waveform B4. In the burst wave, an electrical stimulus with a frequency of 16 Hz is output, and in the fifth burst wave that repeats the basic waveform B5, an electrical stimulus with a frequency of 20 Hz is output.

The first to third output modes stored in the output mode storage unit 405a serving as the duration storage unit are appropriately selected from the basic waveforms B1 to B5 stored in the output mode storage unit 405a. Composed of a combination of burst waves. First, as shown in Table 1, the first output mode is a warm-up mode configured to sequentially perform the following first status to fourth status. The conditions for each status are as follows.
(1) In the first status, 100% output is performed with the first burst wave (2 Hz) for 20 seconds. As shown in FIG. 12, so-called soft start is performed in which the output voltage is gradually increased from 0% to 100% for the first 5 seconds in the first status.
(2) In the second status, 100% output is performed for 20 seconds with the second burst wave (4 Hz).
(3) In the third status, 100% output is performed with the third burst wave (8 Hz) for 10 seconds.
(4) In the fourth status, 100% output is performed for 10 seconds with the fourth burst wave (16 Hz).
The duration of the first output mode (that is, the total duration of the first status to the fourth status) is 1 minute. In the first output mode, since the burst wave frequency is configured to increase stepwise from 2 Hz to 16 Hz, the first output mode is called a warm-up mode.

  In the first output mode as the warm-up mode, as the frequency of the burst wave increases stepwise from 2 Hz to 16 Hz, the exercise frequency of the muscle increases and the muscle and body gradually warm up. This prevents a sudden rise in blood pressure, temporary oxygen shortage in the muscle, and the like. Moreover, when the muscles are gradually warmed, the blood flow is increased and the flexibility of the muscles is increased. Thereby, in the subsequent training mode, it becomes easier to obtain the effect of muscle stimulation. Also, by performing the warm-up mode prior to the training mode, the user can be used to the stimulation moderately, so that the sensation is improved.

Next, as shown in Table 2, the second output mode is a training mode configured to perform the following first status to fourth status in order. The conditions for each status are as follows.
(1) In the first status, 100% output is performed for 3 seconds with the fifth burst wave (20 Hz), and then no output is maintained for 2 seconds. Repeat for 5 minutes.
(2) In the second status, 100% output is performed with the fifth burst wave (20 Hz) for 3 seconds, and then 100% output is performed with the second burst wave (4 Hz) for 2 seconds. Repeat for 5 minutes.
(3) In the third status, 100% output is performed with the fifth burst wave (20 Hz) for 4 seconds, and then 100% output is performed with the second burst wave (4 Hz) for 2 seconds. Repeat for 5 minutes.
(4) In the fourth status, 100% output is performed with the fifth burst wave (20 Hz) for 5 seconds, and then 100% output is performed with the second burst wave (4 Hz) for 2 seconds. Repeat for 5 minutes.
As shown in FIG. 12, in the second output mode, a so-called soft start is performed in which the output voltage is gradually increased from 0% to 100% for 5 seconds in each of the first status to the fourth status. .
The duration of the second output mode is 20 minutes. In the second output mode, the fifth burst wave with a frequency of 20 Hz is maintained for a predetermined period, and then no output or the second burst wave with a frequency of 4 Hz is maintained for a predetermined period, so that it is excellent for stimulating muscles effectively. . Therefore, the second output mode is called a training mode.

Next, as shown in Table 3, the third output mode is a cool-down mode configured to perform the following first status to fourth status in order. The conditions for each status are as follows.
(1) In the first status, the fourth burst wave (16 Hz) is output for 10 seconds.
(2) In the second status, the third burst wave (8 Hz) is output for 10 seconds.
(3) In the third status, the second burst wave (4 Hz) is output for 20 seconds.
(4) In the fourth status, the first burst wave (2 Hz) is output for 20 seconds.
In the third output mode, as shown in FIG. 12, the output in each status is gradually reduced to 100% at the start of the first status and 50% at the end of the fourth status.
The duration of the third output mode is 1 minute. In the third output mode, the burst wave frequency is configured to gradually decrease from 16 Hz to 2 Hz. Therefore, the third output mode is called a cool-down mode.

  In the third output mode as the cool-down mode, the muscles and body that have been warmed up gradually as the frequency of the muscles decreases as the frequency of the burst wave gradually decreases from 16 Hz to 2 Hz. It will be cooled. Then, the fatigue substance generated in the muscle in the preceding training mode is positively discharged from the muscle, and the fatigue substance is prevented from remaining excessively in the muscle.

  As described above, the total time when the first output mode (warm-up mode), the second output mode (training mode), and the third output mode (cool-down mode) are continuously performed is 22 minutes. In this example, as shown in FIG. 12, a rest period of 2 seconds is provided at a total of four locations between the first output mode and the second output mode and between the statuses in the second output mode. It has been. Therefore, the total time of all the processes including the suspension period is 22 minutes and 8 seconds.

Next, the usage mode in the electrical muscular stimulation device 1 of this example will be described in detail below.
The main operation flow S100 shown in FIG. 13 will be described. In the main operation flow S100, first, “+” on the operation surface 54 is pressed for 2 seconds (S101). As a result, the electric power of the muscular electrical stimulation device 1 is turned on, the electrical muscular stimulation device 1 is activated, and a notification sound (“pee”) notifying that it has been activated is emitted from the speaker 43 (S102). ). Thereafter, the electrical muscular stimulation device 1 enters an output standby state, the output level is set to 0, and the input of the operation unit 50 is invalidated (S103).

  Next, it is detected by the skin detection part 402 whether the skin is contacting the electrode part 30 (S104). When the skin detection unit 402 detects that the skin is in contact with the electrode unit 30 (Yes in S104), the operation unit 50 is validated (S105). Then, an output level is input by the operation unit 50 (S106). The input of the output level is performed from the operation surface 54 of the operation unit 50. Every time “+” on the operation surface 54 of the operation unit 50 is pressed, the output level increases by one level, and every time “−” on the operation surface 54 is pressed, the output level decreases by one level. When the output level is set, an output start signal is sent from the control unit 40 to the timer 404, and measurement is started in the timer 404 (S107). Further, the operation of the output level can be performed at any time during the usage time (after the operation unit 50 is activated until the power is turned off).

  From the time when the timer 404 starts measurement (elapsed time 0) to the elapsed time 1 minute, the output mode of the electrode unit 30 is set to the first output mode (warm-up mode) (S108). When the elapsed time reaches 1 minute, the output mode switching unit 405 as a frequency setting unit switches the output mode in the electrode unit 30 to the second output mode (training mode) and maintains it for 20 minutes until the elapsed time of 21 minutes (S109). ). When the elapsed time reaches 21 minutes, the output mode switching unit 405 serving as a frequency setting unit switches the output mode in the electrode unit 30 to the third output mode (cool down mode) and maintains it for 1 minute until the elapsed time of 22 minutes ( S110). When the elapsed time reaches 22 minutes, the measurement in the timer 404 is terminated (S111). Then, the muscular electrical stimulation device 1 is stopped (S112). As described above, when S108 to S111 are performed, one set of the first output mode (warm-up mode), the second output mode (training mode), and the third output mode (cool-down mode) is performed, and the process ends. It will be.

  On the other hand, if the skin detection unit 402 determines that the skin is not in contact with the electrode unit 30 (No in S104), a notification sound (“pi, pi, pi”) to notify that is sent by the speaker 43. It is emitted (S113). Then, a count start signal is sent from the control unit 40 to the power-off counter 403, and measurement of elapsed time is started in the power-off counter 403 (S114).

  Next, the skin detection unit 402 detects whether or not the skin is in contact with the electrode unit 30 (S115). When the skin detection unit 402 detects that the skin is in contact with the electrode unit 30, the process returns to the above-described step S103 and enters an output standby state (Yes in S115). On the other hand, when the skin detection unit 402 determines that the skin is not in contact with the electrode unit 30 (No in S115), it is determined whether the elapsed time in the power-off counter 403 has exceeded 2 minutes (S116). . When it is determined that the elapsed time in the power-off counter 403 does not exceed 2 minutes (No in S116), the process returns to S115 again, and the skin detection unit 402 detects whether the skin is in contact with the electrode unit 30 or not. To do. On the other hand, when it is determined in S116 that the elapsed time in the power-off counter 403 exceeds 2 minutes (Yes in S116), the power of the muscular electrical stimulation device 1 is turned off (S117).

  Next, a description will be given of an interrupt process that is preferentially interrupted between S105 and S110 in the main operation flow S100 described above. As shown in FIG. 14, a skin detection interrupt process S200 is performed as the first interrupt process. The skin detection interrupt process S200 is used as a function of automatically turning off the power when the electrode is detached from the human body during use. In the skin detection interruption process S200, first, the skin detection unit 402 detects whether or not the skin is in contact with the electrode unit 30 (S201). When the skin detection unit 402 detects that the skin is in contact with the electrode unit 30 (Yes in S201), the process returns to the original flow in the main operation flow S100. On the other hand, when the skin detection unit 402 determines that the skin is not in contact with the electrode unit 30 (No in S201), a notification sound (“pi, pi, pi”) notifying that is sent by the speaker 43. It is emitted (S202). Then, a count start signal is sent from the control unit 40 to the power-off counter 403, and the power-off counter 403 starts measuring elapsed time (S203).

  Next, the skin detection unit 402 detects whether or not the skin is in contact with the electrode unit 30 (S204). When the skin detecting unit 402 detects that the skin is in contact with the electrode unit 30, the process returns to step S103 of the main operation flow S100 (Yes in S204). On the other hand, when the skin detecting unit 402 determines that the skin is not in contact with the electrode unit 30 (No in S204), it is determined whether the elapsed time in the power-off counter 403 has exceeded 2 minutes (S205). . When it is determined that the elapsed time in the power-off counter 403 does not exceed 2 minutes (No in S205), the process returns to S204 again, and the skin detection unit 402 detects whether or not the skin is in contact with the electrode unit 30. To do. On the other hand, when it is determined in S205 that the elapsed time in the power-off counter 403 exceeds 2 minutes (Yes in S205), the power of the muscular electrical stimulation device 1 is turned off (S206).

  Next, as shown in FIG. 15, a battery voltage lowering process S300, which is a second interrupt process interrupted between S105 and S110 in the main operation flow S100 described above, will be described. The battery voltage lowering process S300 is a function for automatically turning off the power when the battery voltage of the battery 21 decreases. As a result, the user can easily know when it is necessary to replace the battery. First, the battery voltage detection unit 406 determines whether or not the detected battery voltage V of the battery 21 in the power supply unit 20 is lower than a predetermined threshold value Vm (S301). When it is determined that the battery voltage V is not lower than the predetermined threshold value Vm (No in S301), the process returns to the original flow in the main operation flow S100. On the other hand, when it is determined that the battery voltage V is lower than the predetermined threshold value Vm, a notification sound (“pi, pi, pi”) notifying that effect is emitted from the speaker 43 (S302). Then, a count start signal is sent from the control unit 40 to the power-off counter 403, and the measurement of elapsed time is started in the power-off counter 403 (S303).

  Next, it is determined whether or not the elapsed time in the power-off counter 403 has exceeded 2 minutes (S304). When it is determined that the elapsed time in the power-off counter 403 does not exceed 2 minutes (No in S304), the process returns to S304 again. When it is determined that the elapsed time in the power-off counter 403 exceeds 2 minutes (Yes in S304), the electrical power of the muscle electrical stimulation device 1 is turned off (S305).

  Next, as shown in FIG. 16, an interruption process S400, which is a third interruption process interrupted between S105 and S110 in the main operation flow S100 described above, will be described. First, the control unit 50 determines whether or not the time during which the “−” button on the operation surface 54 of the operation unit 50 is pressed is 2 seconds or more (S401). When it is determined that the time during which the “−” button is pressed is not 2 seconds or longer (No in S401), the process returns to the original flow in the main operation flow S100. On the other hand, when it is determined that the time during which the “−” button is pressed is 2 seconds or longer (Yes in S401), the notification sound (notifying that the power is turned off and the process is ended) "Pee") is emitted from the speaker 43 (S402). Then, the power is turned off (S403).

The effects of the electrical muscular stimulation device 1 of this example will be described in detail below.
In the electrical muscular stimulation device 1, electrodes 311 to 323 having an area of 10 to 65% of the area of the pad 35 are provided. Since the electrodes 311 to 323 are smaller than the area of the pad 35, the pad 35 attached to the pad attaching parts 361 to 373 has an electrode covering part 350 that covers the electrodes 311 to 323 and The electrode uncovered portion 353 that does not cover the electrode is formed. Since the electrode covering portion 350 is in contact with both the electrodes 311 to 323 and the skin surface 6, current actively flows from the electrodes 311 to 323 to the skin surface 6 in contact with the electrode covering portion 350. On the other hand, since the electrode non-covering portion 353 is provided in a region where the electrodes 311 to 323 are not formed in the base material 33, current does not actively flow.

  And when the adhesive force of the pad 35 falls and the electrode coating | coated part 350 leaves | separates, the contact part of the electrodes 311 to 323 and the skin surface 6 via the electrode coating | coated part 350 becomes small gradually. However, the electrode non-covering portion 353 is maintained in contact with the skin surface 6. Therefore, since the energized area on the skin surface 6 is ensured through the electrode non-covering portion 353 even when the contact portion is reduced, the amount of current per unit area on the skin surface 6 is prevented from becoming excessively large. Thus, the concentration of electric power is alleviated and the user can be prevented from feeling pain.

  In addition, since the area of the pad 35 is sufficiently larger than the area of the electrodes 311 to 323, even if a slight misalignment occurs when the pad 35 is attached, the electrode 311 to 323 can be reliably covered with the pad 35. it can. As a result, the assembly workability can be improved and the electrodes 311 to 323 can be prevented from being exposed from the pad 35 and coming into direct contact with the skin surface. Further, since the electrodes 311 to 323 are prevented from being exposed from the pad 35, the hand directly touches the electrodes 311 to 323 when removing the electrical muscle stimulation device 1 from the human body 2 after using the electrical muscle stimulation device 1 or the like. The contact can be prevented.

  In this example, pad pasting parts 361-373 have silver paste printing parts 311b-323b as pasting position display parts which display a pasting position of pad 35. Thereby, it becomes easier to affix the pad 35 in an appropriate position, and assembly workability | operativity improves.

  Moreover, in this example, the electrodes 311 to 323 are located on the side close to the one end 361a to 373a in the pad pasting portions 361 to 373. Thus, even when the pad 35 is peeled off from any portion other than the end portion 362a on the side where the electrodes 311 to 323 are located, the electrode covering portion 350 that covers the electrodes 311 to 323 in the pad 35 contacts the skin surface 6. Since the contact state is maintained, the concentration of electric power can be made less likely to occur, and the user can easily be prevented from feeling pain.

  Moreover, in this example, one edge part 361a-373a forms the edge part 361a-373a furthest from the center 33c of the base material 33, when the base material 33 is seen from the front in the pad sticking parts 361-373. doing. Accordingly, the plurality of electrodes 311 to 323 are positioned on the side closest to the end portions 361a to 373a farthest from the center 33c of the base material 33 in each of the pad pasting portions 361 to 373. It becomes easy to increase the distance. Therefore, the electrical stimulation output from each of the electrodes 311 to 323 easily reaches the inner muscle in the human body 2, that is, the muscle located deep in the human body 2 from the skin surface 6. As a result, such muscles can be stimulated efficiently.

  In this example, the electrodes 311 to 323 are positioned on the side closer to the end portions 361a to 373a in the pad attaching portions 361 to 373 as described above. The attaching parts 361 to 373 may be located on the side close to the center 33 c of the base material 33. In this case, when the adhesive force of the pad 35 is reduced and the pad 35 is peeled off, the electrode non-covering portion 353 is likely to be separated before the electrode covering portion 350 is separated. And when the electrode non-coating part 353 leaves | separates, since the electrode coating | coated part 350 is maintained in the state contact | abutted on the skin surface 6, it is hard to produce electric power concentration. Therefore, the user is likely to notice the peeling of the pad 35 (the electrode non-covering portion 353) before feeling pain. As a result, it is urged to reattach the pad 35 before feeling pain.

  Further, in this example, the plurality of electrodes 311 to 323 include one (electrodes 311 to 313) located on one side divided by a central axis 10a as a virtual center line passing through the center 33c of the base material 33 and the other. Positioned ones (electrodes 321 to 323) are included. Thereby, since the electrodes 311 to 313 and the electrodes 321 to 323 are spaced apart from each other with the virtual center line (center axis 10a) interposed therebetween, the electrical stimulation output from each electrode 311 to 323 is applied to the skin. It becomes easier to reach the muscle located deep in the human body 2 from the surface 6. As a result, such muscles can be stimulated more efficiently.

  Moreover, in this example, the power supply part 20 which supplies electric power to the electrodes 311 to 323 and the main body part 10 incorporating the power supply part 20 are provided. And the base material 33 has the electrode base parts 331-333 and 341-343 in which the electrodes 311 to 323 and the pad bonding parts 361 to 373 were formed while extending outward from the main body part 10. . Thereby, since the main-body part 10 which incorporates the power supply part 20 and the electrodes 311 to 323 are comprised integrally, it is not necessary to supply electric power from the outside. Therefore, it can be wireless, is easy to use, and can be used even in places where there is no external power source. In addition, since a cord for connecting the main body 10 (power supply unit 20) and the electrodes 311 to 323 is not necessary, this also improves usability.

  Moreover, in this example, the base material 33 has a plurality of electrode base portions 331 to 333 and 341 to 343. As a result, the plurality of electrodes 311 to 323 and the main body 10 formed on each of the plurality of electrode bases 331 to 333 and 341 to 343 are integrally formed. Can be pasted together. Therefore, the trouble at the time of bonding the plurality of electrodes 311 to 323 is reduced, and usability is improved. The pad 35 is easily peeled from the end portions 332b of the electrode base portions 331 to 343 in the direction opposite to the extending directions 331x to 343x of the electrode base portions 331 to 343. Therefore, when the pad 35 is gradually peeled from the skin surface 6 in the direction opposite to the extending directions 331x to 343x of the electrode base portions 331 to 343 from the end portions 332b of the electrode base portions 331 to 343, the electrodes 311 to 323 of the pad 35 are removed. The contact portion G between the electrodes 311 to 323 and the skin surface 6 that are in contact with each other via the electrode covering portion 350 covering the surface gradually decreases, but the extending direction 331x to the electrode base portions 331 to 343 of the pad 35 from the electrode covering portion 350 is reduced. The pad extending portion 352 extending in the direction opposite to 343x is maintained in a state of being in contact with the skin surface 6. Accordingly, even if the contact portion G is reduced, the current-carrying area on the skin surface 6 is ensured through the pad extension 352, so that the amount of current per unit area on the skin surface 6 is prevented from becoming excessively large. It is possible to suppress the user from feeling pain.

  In addition, in the base material 33, the direction (extension direction 331x-343x) where the electrode base parts 361-373 extend can be suitably determined based on arrangement | positioning etc. of the electrodes 311-323. For example, it extends in the direction away from the central axis 10a as a virtual center line parallel to the main surface 33b of the base material 33 through the center 33c of the base material 33, and further extends in the direction away from the central axis 10a in the base material 33. It is also possible to provide a relay unit that is arranged in a direction from the relay unit to an arbitrary position.

  In addition, in this example, although the electrode part 30 and the main-body part 10 which incorporates the power supply part 20 were integrally formed, instead of this, the electrode part 30 and the main-body part 10 are formed separately, You may make it connect the electrode part 30 and the main-body part 10 (power supply part 20) via a cord. Also in this case, the same effects as the present example are obtained except for the effect obtained by integrally forming the electrode part 30 and the main body part 10.

  In this example, the electrical muscular stimulation device 1 is attached to the abdomen 3 of the human body 2, but it may be attached to another part.

  In the present example, the main body 10 is located at the center 33 c of the base material 33. Thereby, since the electrical muscular stimulation apparatus 1 of this example can be formed compactly and the path | route between the main-body part 10 and each electrode 311 to 323 can be shortened, each electrode 311 to 323 efficiently. A current can be passed through.

  In this example, a part of the silver paste printing units 311b to 323b is coated with silicon to make the electrodes 311 to 323 smaller than the silver paste printing units 311b to 323b. Thereby, the area of each electrode 311 to 323 can be reduced as compared with the case where the entire region of the silver paste printing portions 311b to 323b is the electrodes 311 to 323 without performing the silicon coating. As a result, power consumption in the entire apparatus can be reduced. And the pad 35 is provided with the pad extension part 352, and the magnitude | size of a pad is ensured. Moreover, since the fall of the amount of electric current supplied to each electrode 311 to 323 can be suppressed, even if a coin battery is adopted as the battery 21 as in this example, the six electrodes 311 to 323 are provided. It can be.

  In addition, the portions of the silver paste printing sections 311b to 323b that have been coated with silicon do not act as electrodes, but serve as guides when the pads 35 are applied. That is, the silver paste printing units 311b to 323b form a pasting position display unit that displays a position where the pad 35 is pasted. If the pad 35 is pasted so as to cover the entire silver paste printing sections 311b to 323b as pasting position display sections, the pad 35 covers the entire area of the electrodes 311 to 323 and the area of the pad extension section 352 is sufficiently wide. Can be secured.

  The battery 21 can be a button battery or a coin battery, and in this example is a coin battery. Thereby, since the battery 21 becomes small, it contributes to size reduction of the muscular electrical stimulation apparatus 1. And since weight reduction can be achieved with size reduction of the muscular electrical stimulation apparatus 1, the electrode part 30 becomes difficult to peel and drop | omit from a user's body, usability improves, and portability also improves. Furthermore, since the battery 21 is also thin, it contributes to thinning of the muscular electrical stimulation device 1. And since the muscular electrical stimulation apparatus 1 becomes thin, the user can wear clothes from the top with the muscular electrical stimulation apparatus 1 attached. Therefore, the muscular electrical stimulation device 1 can be used in various other situations while commuting to work, attending school, working such as housework or work. In addition, since the button battery and the coin battery have stable discharge characteristics at a high operating voltage compared to other dry batteries, the muscular electrical stimulation device 1 can be stably operated for a relatively long time.

  In addition, a battery having a nominal voltage of 3.0 to 5.0 V can be used as the battery 21, and a 3.0 V battery 21 is used in this example. Since the drive voltages of the electronic component 42 and the speaker 43 provided in the muscular electrical stimulation device 1 are the same, it is not necessary to separately provide a step-down circuit and a step-up circuit for driving these electronic components 42 and 43. Thereby, it can contribute to size reduction.

  The power supply unit 20 may incorporate a rechargeable battery instead of the replaceable battery 21 described above. As a charging means for such a battery, a power supply terminal that can be connected to an external power source may be provided, or a non-contact power supply unit that uses electromagnetic induction may be provided. In this case, since the battery can be used repeatedly, consumables can be reduced compared to the case of using a non-rechargeable battery.

  In this example, the base material 33 on which the electrode part 30 is formed is extended from the main body part 10, and the electrode support part 121 extended from the outer shell forming body 12 is bonded to the electrode 33. The part 30 and the main body part 10 are integrally formed. Instead of this, the base material 33 and the main body 10 are separated from each other, and the electrode support 121 and the outer shell forming body 12 are formed as separate bodies so that the main body 10 and the electrode 30 are not used. It may be configured to be separable from each other at times. In this case, the electrode unit 30 can be separated from the main body unit 10 and replaced with another type of electrode unit. Moreover, since the electrode part 30 does not have an electronic component, the electrode part 30 can be wash | cleaned easily by isolate | separating.

  As described above, according to this example, it is possible to provide the electrical muscular stimulation device 1 that can prevent the user from feeling pain when the pad 35 is peeled off during use.

  In this example, silicon coating is applied to a part of the silver paste printing units 311b to 323b, but instead of this, the silver paste printing units 311b to 323b are modified as shown in the first modification shown in FIG. It is good also considering the shape as the shape equivalent to each electrode 311-323 beforehand, and making the substantially whole region of the silver paste printing parts 311b-323b be each electrode 311-323. In this case, the silver paste printing parts 311b to 323b are not coated with silicon, but the lead part is coated with silicon as in the case of the first embodiment so that it cannot be electrically connected to the outside. . Also in this case, in Example 1, the silver paste printing parts 311b to 323b have the same operational effects as Example 1 except that they function as a guide when the pad 35 is attached.

In this example, the second output mode (training mode) is executed based on the first status to the fourth status shown in Table 2 above. Instead, the second status a shown in Table 4 is executed between the second status and the third status in the first status to the fourth status equivalent to this example as in the second modification shown below. The 3a status shown in Table 4 may be executed between the third status and the fourth status.

In the second modification, as shown in Table 4, the 2a status and the 3a status are performed as follows.
(2a) In the 2a status, after the second burst wave (4 Hz) is output for 100 seconds for 10 seconds, the third burst wave (8 Hz) is output for 100 seconds for 10 seconds. 100% output is performed for 10 seconds with 4 burst waves (16 Hz).
(3a) In the 3a status, after the second burst wave (4 Hz) is output for 100 seconds for 10 seconds, the third burst wave (8 Hz) is output for 100 seconds for 10 seconds. 100% output is performed for 10 seconds with 4 burst waves (16 Hz).
In the second modification, since the 2a status and the 3a status are added compared to the second output mode (see Table 2) of this example, the first output mode (warm-up mode) shown in Table 4 is added. The total time when the second output mode (training mode) and the third output mode (cool down mode) are continuously performed is 23 minutes.

  In the 2a status, since the frequency of the burst wave is increased stepwise from 4 Hz to 16 Hz, the frequency change at the time of switching from the 2a status to the 3rd status becomes smooth. Similarly, the frequency change at the time of switching from the 3a status to the 4th status becomes smooth. And in the said modification 2, when the 2a status and the 3a status are added with respect to the case of Example 1, the pattern of the electrical stimulation in 2nd output mode (training mode) will change a lot. As a result, it is possible to prevent a decrease in the bodily sensation due to the user's familiarity with the electrical stimulation, and to stimulate the rectus abdominis muscle more effectively. In addition, by providing the 2a status and the 3a status, there is also an effect of flushing out fatigue substances in muscles that have been fatigued by the application of electrical stimulation. Note that, in the second modified example in which the second output mode (training mode) is set in this way, the same effects as those of the first example are achieved.

  In the first embodiment, the six electrodes 311 to 313 and 321 to 323 are provided. However, the number is not limited to this, and the number may be eight. For example, in Modification 3, as shown in FIG. 18, in addition to the electrodes 311 to 313 and 321 to 323, there are a fourth right electrode 317 and a fourth left electrode 318, and a total of eight electrodes are provided. Have. In addition, in this example, the same code | symbol is attached | subjected to the element equivalent to Example 1, and the description is abbreviate | omitted.

  In the present example, the fourth right electrode 317 is positioned between the second right electrode 312 and the third right electrode 313, and the fourth left electrode 328 includes the second left electrode 322, the third left electrode 323, and the like. Located between. The fourth right electrode 317 and the fourth left electrode 328 are also provided with a pad 35 and a pad extending portion 352 as in the other electrodes 311 to 323.

  Also in this example, the same operational effects as in the case of Example 1 are obtained. And by providing the pad extension part 352, the fall of the amount of electric current supplied to each electrode 311 to 313, 317, 321-323, 318 can be suppressed, ensuring the magnitude | size of the pad 35. FIG. As in this example, eight electrodes can be provided.

In the first embodiment, when the frequency of the burst wave is changed, the frequency setting unit (output mode switching unit 405) is predetermined from the burst wave pattern stored in the burst wave pattern storage unit (output mode storage unit 405a). I try to choose one. It can replace with this and can also be carried out like the following modification 4. As shown in FIG. 19, the modification 4 includes an operation surface 54a as a frequency selection unit that selects the frequency of the burst wave, an interruption period duration calculation unit 405b, and an interruption period duration setting unit 405c.
Then, the interruption period duration calculation unit 405b calculates the duration of the pulse group output interruption period based on the frequency selected by the frequency selection unit (operation surface 54a).
The interruption period duration setting unit 405c sets the duration of the pulse group output interruption period based on the duration calculated by the interruption period duration calculation unit 405b.
In the fourth modification, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  According to the fourth modification, the frequency of the burst wave can be set to a desired frequency by the frequency selection unit (operation surface 54a), and therefore based on the user's preference (shrinkage strength / shrinkage and relaxation interval). Thus, by appropriately setting the frequency of the burst wave, the muscle electrical stimulation device 1 can stimulate the muscles more efficiently for each user. The modification 4 also has the same effects as those of the first embodiment except for the effects related to the mode of changing the frequency of the burst wave.

  In this example, each of the six electrodes 311 to 313 and 321 to 323 has an area within a range of 10 to 65% of the area of the pad 35. Among the plurality of electrodes, some of the electrodes may have an area larger than 65% of the area of the pad 35. For example, it can be made like the following modified example 5. That is, in the modification 5, as shown in FIG. 20, the three electrodes 314, 315, and 324 are provided. In the fifth modification, the same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the modified example 5, as shown in FIG. 20, the base material 33 is substantially Y-shaped when viewed from the front. And the main-body part 10 is formed in the center 33c of the base material 33. FIG. In addition, electrodes 314 and 315 are provided on the pair of electrode bases 334 and 335 that extend in a bifurcated manner on the upper side in the Y direction of the base material 33, respectively, and extend on the lower side in the Y direction of the base material 33. An electrode 324 is provided on the electrode base 344.

  The electrodes 314 and 315 have the same shape as the electrodes 314 and 315 in the first embodiment. However, the lead portion 314a of the electrode 314 and the lead portion 315a of the electrode 315 are connected via a connecting portion 310 that is printed with an ink containing silver paste and coated. And the connection part 310 is connected to the output terminal (not shown) of the control part 40. FIG.

  On the other hand, the electrode 324 includes a silver paste printing part 324 b formed on the back surface 33 a of the base material 33. The silver paste printing part 324b is not coated, and the substantially entire area of the silver paste printing part 324b is an electrode 324. The silver paste printing unit 324b is smaller than the silver paste printing units 314b and 315b that form the electrodes 314 and 315. Therefore, the electrodes 314 and 315 and the electrode 324 have substantially the same area. The electrode 324 outputs ink having a polarity opposite to that of the output terminal to which the connecting portion 310 is connected among the output terminals of the control unit 40 through a lead portion 324a which is printed with an ink containing silver paste and is coated. It is connected to a terminal (not shown).

  As shown in FIG. 17, a pair of electrode base portions 334 and 335 extending upward in the Y direction of the base material 33 form pad pasting portions 364 and 365, respectively, and an electrode base portion 344 extending downward in the Y direction is formed. A pad pasting portion 374 is formed. Then, the pads 35 are attached to the attaching portions 364, 365, and 374 so as to cover the electrodes 314, 315, and 324, respectively. The pad 35 attached to the electrode 324 has a shape that matches the size of the silver paste printing unit 324b as a pad attachment position display unit, and is smaller than the pad 35 that covers the electrodes 314 and 315. The area of the electrode 324 is 85% of the area of the pad 35 covering the electrode 324. The area of the electrodes 314 and 315 is 45% of the area of the pad 35 covering each of the electrodes 314 and 315 as in the case of the first embodiment.

  In the fifth modification, among the plurality of electrodes 314, 315, and 324 included in the electrical muscular stimulation device 1, some of the electrodes (electrodes 324) have an area that is larger than 65% of the area of the pad that covers the electrodes 324. Have. However, since the electrodes 314 and 315 have an area in the range of 10 to 65% of the area of the pad covering the electrodes 314 and 315 as in the first embodiment, the electrodes 314 and 315 are the same as those in the first embodiment. Has the same effect as the case.

DESCRIPTION OF SYMBOLS 1 Muscle electrical stimulation apparatus 10a Center line 311, 312, 313, 314, 315, 321, 322, 323, 324 Electrode 33 Base material 33c Center 35 Pad 361, 362, 363, 364, 365, 371, 372, 373, 374 Pad pasting section 311b, 312b, 313b, 321b, 322b, 323b Pasting position display section

Claims (5)

A muscle electrical stimulation device comprising a plurality of electrodes formed on a substrate and a gel-like pad having conductivity and adhesiveness, and configured to apply electrical stimulation from the electrodes to the human body via the pads Because
In the base material, a pad pasting part is formed so that the pad covers the electrode,
The muscular electrical stimulation device, wherein the plurality of electrodes include an electrode having an area in a range of 10 to 65% of an area of the pad covering the electrodes.   2. The muscular electrical stimulation device according to claim 1, wherein the pad pasting unit includes a pasting position display unit that displays a pasting position of the pad.   3. The electrical muscular stimulation device according to claim 1, wherein the electrode is located on a side close to one end of the pad attaching portion.   4. The muscle according to claim 3, wherein the one end portion forms an end portion farthest from the center of the base material when the base material is viewed from the front in the pasting portion. Electrical stimulator.   The plurality of electrodes include one positioned on one side divided by a virtual center line passing through the center of the base material and one positioned on the other side. The muscular electrical stimulation apparatus as described in any one.

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