JP2017047065A - Low-frequency therapeutic apparatus, and pad part for low-frequency therapeutic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-frequency therapeutic apparatus capable of facilitating work required until the start of its use, and stably energizing a pad.SOLUTION: A low-frequency therapeutic apparatus comprises a pad part 2 fitted to a body of a user for supplying a low frequency pulse current to the user, and a main body part 3 for supplying the low frequency pulse current to the pad part 2. The pad part 2 integrally comprises a pad 21 in which a conductive layer is exposed to at least a part of each of front and rear surfaces and a rear surface side is pasted onto a skin of the user through a conductive gel, and a holder 22 to which the pad 21 can be fitted. The main body part 3 comprises a locking part 41 for locking the holder 22, and a main body part side electrode part conducting to the conductive layer exposed to the front surface side of the pad 21 in a state of being locked to the holder 22. The holder 22 comprises a locked part 42 locked to the main body part 3.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a low frequency treatment device and a pad portion for the low frequency treatment device.

  Conventionally, there is a low-frequency treatment device that attaches a pad having a conductive layer to a user's body and supplies a low-frequency pulse current to the body to perform treatment such as loosening the user's stiff shoulder (Patent Document 1). reference).

  The low-frequency treatment device described in Patent Document 1 has a main body (the “upper half part”) with a pad (the “electrode pad”) sandwiched between the holder (the “lower half part” in Patent Document 1). Is attached. Energization of the pad is performed by electrically connecting a terminal provided on the holder to the main body and the pad. That is, electricity is supplied from the main body to the pad once through the holder.

  Thus, the low-frequency treatment device described in Patent Document 1 cannot be used unless the holder, the pad, and the main body are assembled. For this reason, the work required to start using the low frequency treatment device is complicated.

  Further, in the configuration of the low-frequency treatment device described in Patent Document 1, since the pad is sandwiched between the holder and the main body part, current is supplied from the main body part to the pad through the holder. is there. For this reason, connection failure may occur in the middle of the redundant energization path, and energization to the pad may become unstable.

Japanese Patent Laid-Open No. 6-339531 (FIGS. 3 and 4)

  Therefore, an object of the present invention is to provide a low-frequency treatment device and a pad portion for the low-frequency treatment device that can facilitate the work required to start use and can stably energize the pad. .

  The present invention, in a low frequency treatment device comprising a pad portion attached to the user's body and supplying a low frequency pulse current to the user, and a main body portion supplying a low frequency pulse current to the pad portion, In the pad portion, a conductive layer is exposed on at least a part of each of the front and back surfaces, and a back surface is attached to a user's skin via a conductive gel and a holder to which the pad can be attached. The main body portion includes a locking portion that locks the holder, and a main body side electrode portion that conducts to a conductive layer that is exposed to the surface side of the pad in a locked state with the holder. Is a low frequency treatment device comprising a locked portion locked to the main body portion.

  Further, the present invention provides a pad part for a low-frequency treatment device, which is attached to a user's body and supplies the user with a low-frequency pulse current supplied from a connected main body part. The pad part is a conductive layer. Is exposed to at least a part of the front and back surfaces, and the back surface is integrally provided with a pad attached to the user's skin via a conductive gel, and a holder to which the pad can be attached. A pad portion for a low frequency treatment device comprising a locked portion to be locked to the main body portion.

  According to these configurations, since the pad and the holder are integrated, the low frequency treatment device can be used only by locking the main body portion to the holder. The term “integrated” refers to a state that is combined in a normal use state so as not to be detachable.

  The pad is formed so as to extend on both sides of the holder in the width direction in the pad portion, and the holder has a width dimension in a state of being locked to the main body portion smaller than that of the main body portion in the same state. Can be formed.

  According to this structure, since the width dimension of the holder located in the user side can be formed small, the fitting property to a body becomes favorable.

  The holder can be made of a nonconductor.

  According to this structure, when a pad is arrange | positioned so that a spine may be straddled on a user's back, it can arrange | position so that the holder which is a nonconductor may match with a spine. Thereby, it can suppress that a low frequency pulse current flows into a user's spine and spinal cord. Therefore, since it can suppress that a spine and a spinal cord are damaged by an electric current, a low frequency treatment device can be used safely.

  According to the present invention, since the pad and the holder are integrated, the low frequency treatment device can be used only by locking the main body portion to the holder. Therefore, the work required to start using the low frequency treatment device can be facilitated, and energization from the main body to the pad can be performed stably.

It is a perspective view which shows the low frequency treatment device which concerns on one Embodiment of this invention. It is a disassembled perspective view which shows the state which isolate | separated the holder and pad in the same low frequency treatment device, and the main-body part. It is a top view which shows the pad part in the low frequency treatment device. It is a bottom view which shows the pad part in the low frequency treatment device. (A) is a part (Abbreviate | omitted padding) of AA arrow of FIG. 2, and is a principal part longitudinal cross-sectional view which shows the vertical groove part and horizontal groove part of the holder in the same low frequency treatment device, (B) is a figure. It is a principal part longitudinal cross-sectional view which shows the main-body part side protrusion of the main-body part (internal structure illustration abbreviate | omitted) in the low frequency treatment device in a part among 2 BB arrows. It is a cross-sectional perspective view which shows the vertical groove part and horizontal groove part of the holder in the same low frequency treatment device. It is a principal part longitudinal cross-sectional view which shows the engagement state of the holder and main-body part in the low frequency treatment device. (A) is a top view which shows the state by which the main-body part was attached to the holder in the same low frequency treatment device, (B) is a top view which shows the state in the middle of removing a main-body part from the holder in the same low frequency treatment device. is there. (A) is a top view which shows the holder and pad in the low frequency treatment device which concerns on other embodiment of this invention, (B) is exaggerated up and down by CC arrow of (A). FIG.

  Next, the present invention will be described by taking up one embodiment. In the following description, the vertical direction is the vertical direction of the low frequency treatment device 1 in the state shown in FIG. The low frequency treatment device 1 of the present embodiment is a cordless type, includes a pad portion 2 and a main body portion 3 in which a pad 21 and a holder 22 are integrated, and performs a treatment by combining the pad portion 2 and the main body portion 3. be able to. The term “integrated” refers to a state in which the pad 21 and the holder 22 are detachably combined in a normal use state.

  The pad 21 is a part attached to a user's body. The pad 21 includes a conductive layer 21a that supplies a low-frequency pulse current to the user. The conductive layer 21 a is exposed on at least a part of the front and back surfaces of the pad 21. In the present embodiment, the conductive layer 21a is exposed on the entire surface on the back surface (lower surface), which is the surface of the body side portion 211 facing the body side of the pad 21, and on a part of the surface (upper surface). The pad 21 is attached to the user's body by attaching the body side portion 211 to the user's skin via a conductive gel attached to the treatment portion 21Y having the surface shown hatched in FIG. This is done by pasting.

  The pad 21 is obtained by laminating a carbon layer as a conductor on the surface of a base material (not shown) made of a soft synthetic resin, for example, and the carbon layer becomes a conductive layer 21a. The pad 21 has flexibility. The conductive layer 21a is provided for each polarity (+ pole, -pole) when energized. Since the pad 21 may be energized by alternately changing the polarity, the positive electrode-dedicated conductive layer 21a and the negative electrode-dedicated conductive layer 21a do not exist in a fixed manner, but the polarity is variable. is there.

  As shown in FIG. 2, the pad 21 includes an attachment portion 21X attached on the holder 22 and a treatment portion 21Y extending from at least one of the attachment portions 21X and exposing the conductive layer 21a. The pad 21 is formed so as to extend on both sides in the width direction of the holder 22 in the pad portion 2 (see FIGS. 3 and 4). The treatment portion 21Y of the present embodiment extends from the attachment portion 21X in both polarities. In addition, the conductive layer 21a is exposed on the entire surface of the body side portion 211 that is the bottom surface of the treatment portion 21Y.

  The attachment portion 21X has a narrowed shape compared to the treatment portion 21Y. That is, the width dimension of the attachment part 21X is formed smaller than the width dimension of the treatment part 21Y. Thereby, the holder 22 and the main-body part 3 can be reduced in size. The conductive layer 21 a is also exposed on the surface (upper surface) which is the surface facing the main body 3 in the attachment portion 21 </ b> X of the pad 21, and this exposed portion becomes the pad-side electrode portion 212. The pad side electrode portion 212 is formed for electrical connection with the main body portion side electrode portion 33. In the present embodiment, the conductive layer 21a corresponding to one pole (for example, the + pole) is exposed at one end in the width direction (vertical direction in FIG. 3) of the mounting portion 21X, and the other pole (for example, the − pole) at the other end. The conductive layer 21a corresponding to is exposed. Therefore, the conductive layer 21 a of the pad side electrode portion 212 is exposed at the outer peripheral portion of the pad 21. The exposure of the conductive layer 21a in the pad-side electrode unit 212 can be realized by, for example, peeling off a part of the pad 21, folding the pad 21 back and forth, or overlapping the pad 21 in the thickness direction.

  The holder 22 is a part that holds the pad 21. In this embodiment, it is made of hard resin, and the mounting portion 21X of the pad 21 is held by a double-sided adhesive tape. Thereby, the pad 21 and the holder 22 are united. The holder 22 includes a pad holding portion 221 that holds the attachment portion 21 </ b> X of the pad 21, and wall portions 222 that are positioned at both ends of the pad holding portion 221. The holding of the pad 21 is not limited to that using a double-sided pressure-sensitive adhesive tape, and may be, for example, heat sealing, glue, or adhesive.

  Since the holder 22 is made of hard resin, it is non-conductive. For this reason, when the pad 21 is disposed so as to straddle the spine on the back of the user, the holder 22 that is a non-conductor is aligned with the spine, so that the treatment portion 21Y of the pad 21 does not overlap the spine. Thereby, it can suppress that a low frequency pulse current flows into a user's spine and spinal cord. Therefore, since it can suppress that a spine and a spinal cord are damaged by an electric current, the low frequency treatment device 1 can be used safely. Moreover, in the attachment part 21X of the pad 21, since it is not necessary to cover the part which overlaps with a spine with an insulating member separately, the structure of the pad part 2 can be simplified.

  As shown in FIG. 5A, the pad holding part 221 has a pad contact part 2211 located near the center and a peripheral part 2212 located near the wall part 222. As shown in the drawing, the upper surface of the peripheral edge portion 2212 is located higher than the upper surface of the pad contact portion 2211. For this reason, when the main body 3 is attached to the holder 22, the lower surface 32 of the main body 3 comes into contact with the peripheral edge 2212.

  As shown in FIG. 2, the pads 21 are overlapped so as to contact the upper surface of the pad contact portion 2211. A substantially U-shaped positioning protrusion 2213 protrudes upward from the pad abutting portion 2211, and the pad 21 with respect to the holder 22 is aligned by aligning the edge of the window portion 213 penetrating in the front and back direction with the positioning protrusion 2213. Can be positioned.

  As described above, the upper surface of the peripheral edge portion 2212 is higher than the upper surface of the pad contact portion 2211. For this reason, when the main body 3 is attached to the holder 22, the lower surface 32 of the main body 3 abuts on the peripheral edge 2212, and therefore, as shown in FIG. The lower surface 32 of the main body 3 is not in close contact, and a gap can be provided. For this reason, it can suppress that the lower surface 32 rubs against the carbon layer of the pad side electrode part 212, and the main-body part 3 is contaminated with the peeled-off carbon. Therefore, the low frequency treatment device 1 can be used beautifully.

  Since the pad 21 is a consumable item, it can be attached to and detached from the main body 3 at the time of replacement. In the present embodiment, the holder 22 is integrated with the pad 21 to form the pad portion 2, and the main body portion 3 is attached to and detached from the holder 22. The replacement of the pad 21 is performed together with the holder 22.

  The main body 3 is a part that supplies a low-frequency pulse current to the conductive layer 21 a of the pad 21 by being attached to the holder 22. A power source unit such as a battery and an electric circuit (substrate) for forming a desired low-frequency pulse current are arranged inside the main body unit 3, and switches and a display unit are provided outside (one Not shown except for the part). As shown in FIG. 5 (B), a main body side electrode portion 33 protrudes from a lower surface 32 which is a surface facing the holder 22 of the main body portion 3 while being biased by a spring 34 (main body portion side electrode). The position of the portion 33 is also indicated by a two-dot chain line in FIGS. 8A and 8B). The main body side electrode part 33 is provided for each polarity.

  Here, as shown in FIG. 4, the width dimension W <b> 22 of the holder 22 is formed smaller than the width dimension W <b> 3 of the main body part 3 in a state where the holder 22 is locked to the main body part 3. Since the holder 22 is made of hard resin, the flexibility is poor. On the other hand, since the pad 21 has flexibility, the flexibility of the pad 21 is not easily disturbed by the main body 3 by making the holder 22 narrower than the main body 3. For this reason, since it is easy to make the pad 21 follow the curved surface of a user's body, the fit property to the user's body of the pad part 2 is favorable.

  The holder 22 and the main body 3 are formed with a guide engaging portion 4 that is configured to be engaged when the main body 3 is attached to the holder 22 in an overlapping manner and to be released when the main body 3 is detached. ing. The induction engaging portion 4 engages both the holder 22 and the main body portion 3 and restricts the moving direction of the main body portion 3 with respect to the holder 22 when both are attached and detached. Specifically, when the both are attached, the guide engaging portion 4 is moved in the directly facing direction (downward) D1 indicated by an arrow in FIG. When removing both, the main body 3 moves relative to the holder 22 in a direction (lateral direction) D2 (see FIG. 8A) intersecting the facing direction D1, thereby engaging the both. It is formed to be released. In this removal, the movement in the direction opposite to the movement direction (upward direction) at the time of the attachment is suppressed (movement is impossible in this embodiment). In the present embodiment, the engagement between the holder 22 and the main body 3 is released even if the main body 3 is moved in the clockwise direction that is the direction opposite to the direction D2 that is counterclockwise in plan view. . Thus, the main body 3 can be configured to be disengaged by moving the main body 3 in both lateral directions, and the main body 3 can be configured to be disengaged by moving the main body 3 only in one horizontal direction. .

  As described above, the guide engaging portion 4 regulates the moving direction of the main body 3 with respect to the holder 22, so that the attachment can be performed by one touch (only the main body 3 is pushed into the holder 22). On the other hand, since the disengagement is disengaged by moving in the direction (lateral direction) D2 intersecting the facing direction D1, it is difficult for the disengagement by external force other than the user's operation. It can suppress that the main-body part 3 remove | deviates from the holder 22 by moving. In particular, in the present embodiment, since a stopper protrusion 4221 described later exists, it is further difficult to release the engagement.

  When removing the main body 3 from the holder 22, the guide engaging portion 4 rotates the main body 3 in the lateral direction D <b> 2 indicated by an arrow in FIG. It is formed so that the engagement between the holder 22 and the main body 3 is released. With this configuration, since the engagement is released by rotating with respect to the facing direction D1 at the time of removal, the user moves during use and moves from the holder 22 to the main body as compared with the engagement release by simple translation. It can suppress effectively that the part 3 remove | deviates unexpectedly.

  Hereinafter, the guide engaging portion 4 will be described in detail. As shown in FIG. 2, the guide engaging portion 4 in the present embodiment is a protrusion formed on the main body 3, which is a main body side protrusion 41 as a locking portion, and a main body side protrusion formed on the holder 22. 41 is provided with a groove 42 as a locked portion. In this configuration, since the guide engagement portion 4 can be configured by concave and convex fitting, the configuration can be simplified.

  The wall portions 222 of the holder 22 are both ends in the longitudinal direction of the pad holding portion 221, on both sides (the opposite sides of the pad 21 in the width direction (vertical direction in FIG. 3)) sandwiching the main body portion 3 in the direction crossing the facing direction D <b> 1. positioned. The wall portion 222 has an inner curved shape so as to allow the main body portion 3 to rotate in the lateral direction D2 during removal. On the inner surface of the wall portion 222, a vertical groove portion 421 and a horizontal groove portion 422 are formed as the groove portion 42. The vertical groove portion 421 is formed in the vertical direction, which is the facing direction D <b> 1 between the holder 22 and the main body portion 3, and is open upward. The lateral groove portion 422 is formed in a lateral direction intersecting with the longitudinal direction, and at least one end portion in the lateral direction is open. In the present embodiment, the vertical groove portion 421 and the horizontal groove portion 422 are orthogonal to each other. Further, the lateral groove portion 422 of the present embodiment is open at both ends in the lateral direction.

  The longitudinal cross-sectional shape in the part where the vertical groove part 421 and the horizontal groove part 422 cross | intersect is a shape shown to FIG. 5 (A). The vertical groove portion 421 is provided with a flange portion 423 extending inwardly (in the center direction of the pad holding portion 221) in the upper portion. An introduction slope 4231 is formed on the upper portion of the flange portion 423. The introduction slope 4231 is a gently curved slope that descends inward. A horizontal surface 4232 is formed at the lower portion of the flange portion 423. The lateral groove portion 422 is formed so that the vertical dimension is slightly larger than the vertical dimension of the main body portion side protrusion 41 formed on the main body portion 3. Accordingly, the main body side protrusion 41 is movable along the longitudinal direction of the lateral groove portion 422. In addition, an engaging protrusion 424 that protrudes upward from the lower surface of the horizontal groove portion 422 is formed at a portion where the vertical groove portion 421 and the horizontal groove portion 422 intersect.

  Then, as shown in FIG. 6, the main body 3 is rotated, for example, in the horizontal direction D <b> 2 with respect to the holder 22 from the state where the main body 3 is attached to the holder 22 in an overlapped manner. Stopper protrusions 4221 and 4221 are formed as limiting portions to be limited. These stopper protrusions 4221 and 4221 are located on both sides in the lateral direction sandwiching the main body side protrusion 41 in the attached state. The main body side protrusion 41 to be moved comes into contact with each stopper protrusion 4221. This contact restricts the movement of the main body 3 in the direction in which the main body 3 is disengaged. In this embodiment, since the main body 3 can be moved in both lateral directions to release the engagement, the stopper protrusion 4221 is formed at two locations. However, the main body 3 is moved only in one horizontal direction. When the engagement can be released, the stopper protrusion 4221 may be formed only at one place.

  When the main body portion 3 is rotated beyond a certain force, the main body portion side protrusion 41 gets over the stopper protrusion 4221. Then, the restriction on the movement is released, and the main body 3 can be rotated in the lateral direction D2 shown in FIG. 8A, and as a result, as shown in FIG. 8B.

  As shown in FIG. 6, a slope 4221 a is formed on the inner side of each stopper projection 4221 (the side facing the main body side projection 41). For this reason, since the main body side projection 41 abuts on the inclined surface 4221a and the movement is restricted, the main body side projection 41 can get over the stopper projection 4221 and release the engagement without requiring excessive force. .

  As described above, since the stopper protrusions 4221 and 4221 are formed in the lateral groove portion 422, the rotation of the main body portion 3 in the lateral direction D2 by each stopper protrusion 4221 can be restricted. For this reason, an engagement state can be maintained reliably. Further, when the user gets over the vehicle, a “click” sound and a tactile sensation (click feeling) are transmitted to the user, so that the user can know that the main body 3 is not engaged. Accordingly, the click feeling is transmitted to the user even if the main body 3 is accidentally rotated, and if the rotation is incorrect, the user is prompted to reattach the main body 3. be able to.

  On the other hand, the main body 3 is formed with a main body side protrusion 41 on the side surface 31 facing the wall portion 222 of the holder 22 so that the holder 22 can move along the vertical groove 421 and move along the horizontal groove 422. ing. According to this configuration, when attaching, the holder 22 which is basically a stationary side is provided with the vertical groove portion 421 and the horizontal groove portion 422, and the main body portion side protrusion 41 is formed on the main body portion 3 which is the moving side. . Therefore, it is easy to align the two.

  The vertical cross-sectional shape of the main body side protrusion 41 is the shape shown in FIG. A horizontal surface 411 is formed on the upper portion of the main body side protrusion 41, and a horizontal surface 412 and a tapered surface 413 are formed on the lower portion. The lower horizontal surface 412 abuts on the engaging protrusion 424 when the main body 3 is attached to the holder 22. Further, the taper surface 413 is a flat slope whose protrusion amount of the main body side protrusion 41 is reduced as it goes downward.

  As shown in FIG. 2, the main body portion side protrusion 41 is located below the center of the side surface 31 in the vertical direction. For this reason, the main body side protrusion 41 is in an asymmetric position in the vertical direction. For this reason, even if the user tries to attach the main body 3 to the holder 22 with the wrong side, the position of the main body side projection 41 (the vertical position) does not match the vertical groove 421 on the holder 22 side. . For this reason, erroneous mounting can be suppressed.

  When the main body 3 is attached to the holder 22, the tapered surface 413 of the main body side protrusion 41 and the flange 423 of the vertical groove 421 come into contact with each other. When the main body portion side protrusion 41 is aligned with the flange portion 423 and the main body portion 3 is pressed from above, the holder 22 is made of resin, so that the flange portion 423 pressed by the main body portion side protrusion 41 is elastically deformed, The main body side protrusion 41 moves below the portion 423, that is, in the lateral groove portion 422. As a result, the lower horizontal surface 412 of the main body side protrusion 41 abuts on the engagement protrusion 424. In this state, the main body portion side protrusion 41 is sandwiched between the horizontal surface 4232 of the flange portion 423 and the engagement protrusion 424 and is brought into an engagement state shown in FIG. When the main body side protrusion 41 moves, the elastic deformation of the flange portion 423 is restored. At this time, since a “click” sound and a tactile sensation (click feeling) are transmitted to the user, the user can know that the attachment is correctly performed.

  As shown in FIGS. 5A and 7, the flange portion 423 is formed so that the vertical dimension becomes smaller (the rigidity becomes smaller) as it goes inward. For this reason, the main body side protrusion 41 can be moved into the lateral groove portion 422 without pushing the main body portion 3 downward with a large force.

  In the engaged state shown in FIG. 7, even if the main body side protrusion 41 is to be moved upward, the horizontal surface 4232 of the flange 423 and the horizontal surface 411 of the main body side protrusion 41 are brought into contact with each other and cannot be moved. . Thereby, the main body 3 can be reliably engaged with the holder 22.

  In order to release the engagement state, for example, as shown in FIG. 8A, the main body part 3 is rotated counterclockwise to remove the main body part side protrusion 41 from the engagement protrusion 424 and the lateral groove. It can be moved in the longitudinal direction of the portion 422 and escaped from the lateral groove portion 422 as shown in FIG. In the present embodiment, the main body side protrusion 41 can be escaped from the lateral groove 422 even if it is rotated clockwise in the opposite direction. When the main body side projection 41 is disengaged from the engagement projection 424, the horizontal groove portion 422 has a margin in the vertical direction with respect to the main body side projection 41 as the engagement projection 424 is eliminated. Can be rotated lightly. Since the engagement state is released in the state shown in FIG. 8B, the main body 3 can be removed from the holder 22 by moving the main body 3 upward.

  Here, as shown by broken lines in FIGS. 8A and 8B, the main body portion side electrode portion 33 is provided at a position different from the main body portion side protrusion 41. On the other hand, as shown in FIG. 2, the pad 21 is held by the holder 22 at the attachment portion 21 </ b> X so that the outer peripheral edge 21 b is substantially along the inner edge 2221 of the wall portion 222 of the holder 22. The main body side electrode section 33 supplies a low-frequency pulse current by contacting the pad side electrode section 212 of the pad 21 located on the holder 22 in a state where the main body section 3 is attached to the holder 22.

  In this manner, the holder 22 and the main body 3 can be engaged by the induction engaging portion 4 in a state where the main body side electrode portion 33 is in contact with the pad side electrode portion 212. For this reason, the contact of both electrode parts can be strengthened. Therefore, the conduction state between the pad 21 and the main body 3 can be stabilized.

  The induction engaging portion 4 is in charge of physical connection between the holder 22 and the main body portion 3, and the main body portion side electrode portion 33 is in charge of electrical connection between the pad 21 and the main body portion 3. For this reason, it is possible to supply a stable current as compared with a configuration in which both connections are made, for example, using a snap member made of metal and having a concavo-convex fitting to serve both fitting and conduction. Furthermore, as long as the induction engagement portion 4 and the main body side electrode portion 33 are close to each other, as long as the engagement state in the induction engagement portion 4 is maintained, the main body side electrode portion 33 and the pad side electrode portion. The contact state with 212 is not easily damaged, and a low-frequency pulse current can be reliably supplied.

  The pad 21 includes a curved portion 214 that substantially matches the curvature of the wall portion 222 of the holder 22 on the outer peripheral edge 21b of the attachment portion 21X. Thus, because the pad 21 has a curved outer edge along the rotational direction at the time of removal, there is a situation in which the pad 21 is caught by the guide engaging portion 4 such as the main body side protrusion 41 at the time of removal. Can be controlled and used comfortably.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the summary of this invention.

  The pad 21 of the above embodiment is obtained by laminating a carbon layer on the surface of a base material made of a soft synthetic resin, for example, by printing, and this carbon layer is used as a conductive layer 21a. However, the conductive layer 21a is not limited to this configuration. For example, as shown in FIGS. 9A and 9B, the conductive layer 21a can be formed of a single layer that is integrated with the front and back sides. Here, in the conductive layer 21a in the embodiment, when the carbon layers are formed on the front and back surfaces of the base material, a configuration in which the front and back carbon layers are electrically connected is necessary in order to make the front and back conductive. In addition, a carbon layer may be formed on one surface, and a part of the carbon layer may be turned upside down. In these configurations, there is a possibility that conduction may become unstable due to the occurrence of cracks in the electrically connected portions of the front and back surfaces and the folded portions of the carbon layer. On the other hand, in the pad 21 of this modified embodiment, since the conductive layer 21a is integrated with the front and back, it is advantageous in that conduction between the front and back is made stable without the need for the electrically connecting configuration.

  The conductive layer 21a in this modified form can be formed, for example, by attaching conductive particles such as carbon particles to the fibers constituting the fiber sheet (paper or the like). The pad 21 formed in this way is in a state in which conductive particles are dispersed on at least the surface of the fibers constituting the fiber sheet. The fibers constituting the fiber sheet may be arranged regularly (for example, in a net shape) as viewed from the front or back, or may be arranged irregularly. The conductive layer 21a can be formed by dispersing conductive particles in the resin layer in addition to the fiber sheet. Alternatively, a single conductive fiber can be sewn to form a sheet. In particular, when the conductive layer 21a is made of a fiber sheet, the pad 21 can be formed flexibly, and is easy to follow the user's body. is there. In addition, the conductive layer 21a may be formed by laminating two or more layers in addition to the single layer of the front and back surfaces.

  As shown in FIG. 9B, the pad 21 in this modified form can cover the surface (upper surface) other than the pad-side electrode portion 212 with a non-conductive cover layer 21c. Since the conductive layer 21a is separated according to polarity, the positive electrode side conductive layer 21a and the negative electrode side conductive layer 21a are physically connected by the cover layer 21c. On the other hand, with respect to the back surface (lower surface), the entire conductive layer 21a can be exposed, and a conductive gel can be attached to the treatment portion 21Y.

  Further, the pads 21 may be formed separately for each polarity. Moreover, in the said embodiment, although the exposed part of the conductive layer 21a formed for the electrical connection with the main-body part side electrode part 33 was located in the both ends of the width direction in the attachment part 21X, The position is not limited and may be another position such as the center in the width direction as long as it overlaps the main body 3 at the time of attachment. Contrary to the above-described embodiment, the holder 22 may have a protrusion and the main body 3 may have a groove.

  In addition, the guide engaging portion 4 of the above embodiment includes a wall portion 222 (groove portion 42) located at both ends in the longitudinal direction of the pad holding portion 221 in the holder 22, and a side surface facing the wall portion 222 of the holder 22 in the main body portion 3. 31 (main body part side protrusion 41). However, the guide engagement portion 4 is not limited to this, and may be formed at other positions.

DESCRIPTION OF SYMBOLS 1 Low frequency treatment device 2 Pad part 21 Pad 21a Conductive layer 22 Holder 3 Main body part 33 Main body part side electrode part 4 Guide engaging part 41 Locking part, Main body part side protrusion 42 Locked part, Groove part

Claims (5)

In a low-frequency treatment device comprising a pad part that is attached to a user's body and supplies a low-frequency pulse current to the user, and a main body part that supplies the pad part with a low-frequency pulse current,
In the pad portion, a conductive layer is exposed on at least a part of each of the front and back surfaces, and a back surface is attached to a user's skin via a conductive gel and a holder to which the pad can be attached. In preparation for
The main body portion includes a locking portion that locks the holder, and a main body side electrode portion that conducts to a conductive layer exposed to the surface side of the pad in a locked state to the holder,
The said holder is equipped with the to-be-latched part latched by the said main-body part, The low frequency treatment device characterized by the above-mentioned. The pad is formed to extend on both sides in the width direction of the holder in the pad portion,
The low-frequency treatment device according to claim 1, wherein the holder is formed so that a width dimension in a state where the holder is locked to the main body portion is smaller than that of the main body portion in the same state.   The low frequency treatment device according to claim 1 or 2, wherein the holder is made of a nonconductor. In a pad portion for a low-frequency treatment device, which is attached to a user's body and supplies the user with a low-frequency pulse current supplied from a connected main body,
In the pad portion, a conductive layer is exposed on at least a part of each of the front and back surfaces, and a back surface is attached to a user's skin via a conductive gel and a holder to which the pad can be attached. In preparation for
The said holder is provided with the to-be-latched part latched by the said main-body part, The pad part for low frequency treatment devices characterized by the above-mentioned.   The pad part for a low frequency treatment device according to claim 4, wherein the holder is made of a nonconductor.

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