JP2006000381A - Electrode and electrode structure for low frequency therapy apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electrodes for low frequency therapy apparatus which has increased degree of freedom in arrangement to an affected part where an adhesive sheet is made to adhere, by securing uniformity of energizing current supplied to the whole adhesive sheet and a satisfactory energizing state at a center part of the adhesion to the affected part while securing the area of a main surface. <P>SOLUTION: One of main surfaces is a conductive surface 3 adhering to the adhesive sheet having an adhesive conduction sheet, and the other is an insulation surface 4 made to face the side of the affected part. The conductive surface 3 is provided with: a proximal end part 10 connected to a conductive cord of the low frequency therapy apparatus; and a lightening part 2 formed from the side of the proximal end part 10 to expose the adhesive conduction surface of the adhesive sheet to be used to nearly the center of the main surfaces. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electrode structure for a low-frequency treatment device, and more particularly to an electrode conductor attached to an affected part together with an adhesive sheet such as a hydrogel sheet in order to supply an energization current of the low-frequency treatment device.

  Conventionally, a low-frequency treatment device has been widely used as a device for applying a low-frequency current by attaching an electrode to an affected part for various treatments. Here, various types of electrodes for low-frequency treatment devices have been provided. However, a carbon electrode with an adhesive layer formed on the affected surface is attached, and a cord from the low-frequency treatment device is attached to the back surface of the carbon electrode. The mainstream is a type that is provided with a snap connection portion that can be attached and is used repeatedly.

  On the other hand, in recent years, as an electrode for a low-frequency treatment device, a thin soft sheet (hereinafter referred to as a hydrogel sheet) on which an adhesive conductive surface based on a hydrogel is formed is also a disposable electrode. (For example, refer to Patent Document 1).

  That is, such a hydrogel sheet can be produced at a lower cost than the conventional electrodes described above, and is distributed in large quantities as a cooling sheet for lowering the temperature of the affected area, for example, and is a disposable one. Hygienic compared to the type of electrode, soft base material and cutting with a knife, the area for energizing the skin can be easily adjusted, and various chemicals or cosmetics on the hydrogel surface By including the liquid component, it has various merits such as not only electrical stimulation to the affected part but also various medicinal effects, beauty and other effects.

  For this reason, in order to supply the electric current from a low frequency treatment device to a hydrated gel sheet, an electrode conductor is provided that is detachably attached to the hydrated gel sheet affixed to the affected area (see, for example, Patent Document 2).

  In the case of such an electrode structure, when the electrode surface (conductive part) of the electrode conductor comes into contact with the affected part (skin) during energization, the so-called “current” in which the current from the low frequency treatment device is directly energized to the affected part (skin). A “leak” condition will result in an unpleasant stimulus to the patient.

Therefore, as the electrode conductor attached to the hydrogel sheet, one of the main surfaces is insulated from the conductive surface and the other is insulated in order to supply the energized current from the low frequency treatment device to the affected area through the hydrogel surface of the hydrogel sheet. As the surface, it is necessary to attach the conductive surface to the hydrogel surface of the hydrogel sheet and use it so that the insulating surface side faces the affected area.
Japanese Patent Laid-Open No. 9-70442 JP 2001-212249 A

  By the way, in such a type of electrode conductor interposed between the hydrated gel sheet and the affected part, the current from the low frequency treatment device is applied to the affected part (skin) where the insulating surface is opposed due to the electrode structure described above. Since it is not supplied, the area of the electrode conductor and the arrangement (direction, position, etc.) of the electrode conductor during use are greatly limited.

  Specifically, it is necessary to reduce the main surface area of the electrode conductor in order to reduce the area of the insulating portion, and it is necessary to attach this electrode conductor to the end side of the hydrous gel sheet. There is a problem in that it is not possible to uniformly supply the energizing current to the entire hydrogel sheet.

  On the other hand, when the main surface area of the electrode conductor is reduced, the contact area to the hydrogel sheet is reduced, so that contact failure is likely to occur, and the electrode conductor is liable to fall off due to external force. Another problem occurs.

  In addition, when the area of the electrode conductor is reduced, when the hydrogel sheet is attached to the electrode conductor and attached to the affected part, the adhesive surfaces of both ends of the hydrogel sheet hanging down on the left and right sides of the electrode conductor stick to each other. There is also a problem that inconvenience is likely to occur. In this regard, the electrode conductor disclosed in Patent Document 2 enables the attachment and detachment in a state where the hydrated gel sheet is attached to the affected part, so that such inconvenience can be avoided.

  However, the electrode conductor of Patent Document 2 has a weak point that the main surface is tapered in order to facilitate attachment and detachment in a state where the hydrogel sheet is attached to the affected part, and thus it is easy to drop off due to external force or the like. In addition, it cannot be said that it is practically excellent as a conductor for a water-containing gel sheet whose adhesive conductive surface is severely deteriorated.

  That is, the adhesive conductive surface of the hydrated gel sheet is such that its adhesive strength easily deteriorates in a short time, and the adhesive strength is not so strong in the first place. For this reason, the electrode conductor of Patent Document 2 has a weak point that easily falls off even when it is attached so that the energizing cord side faces downward, or even when the external force applied to the gripping part or the cord is relatively weak. Have. Therefore, it is considered that there is a demand for an electrode conductor used for a sheet having a relatively weak adhesive force such as a hydrogel sheet that does not easily fall off even when an external force is applied to a gripping part, a cord or the like.

  On the other hand, in order to give drop-off resistance, it may be possible to adopt a sandwiching type in which the electrode conductor is sandwiched from above and below the hydrogel sheet, but in this case, the structure becomes complicated and the cost increases. There is a problem.

  The subject of this invention is solving the above-mentioned problem in the electrode conductor of the type interposed between an adhesive sheet and an affected part.

  That is, the main object of the present invention is to ensure a good energization state in the central part of the affected area, to ensure a good energization current supplied to the entire pressure-sensitive adhesive sheet, while ensuring the area of the main surface, and to arrange the area on the affected area. It is an object to provide an electrode conductor for a low-frequency treatment device with an increased degree of freedom.

  Another object of the present invention is to provide an electrode conductor for a low-frequency treatment device in which the prevention of dropout due to external force or the like is enhanced.

  The first configuration of the present invention is an electrode conductor having a substantially thin plate shape, one of the main surfaces being a conductive surface attached to an adhesive sheet having an adhesive conductive surface, and the other being an insulating surface facing the affected part side. The conductive surface is formed from the base end portion connected to the energization cord of the low frequency treatment device and the base end portion side, and exposes the adhesive conductive surface of the pressure-sensitive adhesive sheet to be used at the approximate center of the main surface. And a meat extraction part. In this electrode conductor, it is possible to save, disperse, redistribute, etc. the insulating surface of the electrode conductor facing the affected area, that is, the non-energized area, based on the shape of the cutout portion.

  According to a second configuration of the present invention, in the first configuration, the lightening portion has a shape that separates the main surface from the base end portion on both the left and right sides. In this electrode conductor, a gap is formed from the base end portion of the member toward the center of the main surface by the thinned portion, and the adhesive conductive surface of the pressure-sensitive adhesive sheet used is a void portion inside the left and right conductor members. To be exposed.

  The third configuration of the present invention is characterized in that, in the second configuration, the lightening portion has an opening shape. In the electrode conductor having the third configuration, an annular frame portion is formed on the main surface to ensure rigidity, and a force against the pulling force is generated at the time of pulling by the opening portion on the tip side. To do.

  According to a fourth configuration of the present invention, in the third configuration, the lightening portion has a shape substantially similar to the main surface outer shape. In the electrode conductor having the fourth configuration, the width (thickness) of the frame portion of the conductive surface can be made substantially constant.

  According to a fifth configuration of the present invention, in any one of the first to fourth configurations, a wide portion having a wider outer width than the base end side is provided. In the electrode conductor having the fifth configuration, the wide portion generates a force that resists the pulling force during pulling. Further, the combination with the third configuration contributes to avoiding problems such as sticking of the adhesive parts even when the adhesive sheet to be used is relatively large.

  The sixth configuration of the present invention is characterized in that, in the fifth configuration, the wide portion has a shape having the widest tip width.

  A seventh configuration of the present invention is characterized in that, in the sixth configuration, the wide portion has a shape that is diverging in the distal direction.

  According to an eighth configuration of the present invention, in any one of the first to seventh configurations, the conductive surface is formed with an insulating region at an edge of the outer inner periphery. In the electrode conductor having the eighth configuration, so-called current leakage prevention in which the current from the low-frequency treatment device is directly applied to the affected part (skin) can be enhanced.

  According to a ninth configuration of the present invention, in any one of the first to eighth configurations, at least a portion to be attached to the adhesive conductive surface of the adhesive sheet is made of a flexible member. In the electrode conductor having the ninth configuration, the adaptability to the curved surface and the unevenness of the affected area is good.

  Further, the present invention provides a low frequency treatment device comprising the electrode conductor having any one of the above-described structures and an adhesive sheet having an adhesive conductive surface having an outer shape larger than an outer edge shape excluding a base end portion of the electrode conductor. It is an electrode structure.

  According to the electrode conductor of the present invention having the above-described configuration, while ensuring the area of the main surface, it is possible to equalize the energization current supplied to the entire pressure-sensitive adhesive sheet and ensure a good energization state in the affected part pasting center. This increases the degree of freedom of placement in the affected area.

  Embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the electrode conductor 1 according to the present embodiment has a substantially rectangular shape with the base end side being vertically long with respect to the main surface outer shape (outer edge shape). It has a bilaterally symmetric shape (in other words, a substantially countersunk screw shape) to which a trapezoid having a wide side is connected. And in this electrode conductor 1, the hollow part is formed from the base end part side, and this is extended so that a conductor member may isolate | separate into both right and left sides from a base end part, and it is in the center of the main surface of a member. A large gap is formed. In the present embodiment, the lightening opening portion 2 having a shape substantially similar to the outer edge shape described above is provided as the lightening portion of the main surface of the member, whereby the entire member has an annular frame structure. ing.

  In actual energization, as shown in FIG. 3, two electrode conductors 1 are used as a set, but only one conductor will be described here for the sake of simplicity. Hereinafter, each part of the electrode conductor 1 will be described in detail.

  The electrode conductor 1 is a conductive surface 3 whose one main surface shown in FIG. 1 has conductivity and is attached (attached) to the adhesive conductive surface of the adhesive sheet, and the other main surface shown in FIG. Is an insulating surface 4 that faces the affected area during use. In each figure, a diagonal line is added to the conductive surface side to distinguish both main surfaces.

  The electrode conductor 1 is brought into contact with a base end portion 10 to which an energization cord from a low frequency treatment device (not shown) is connected and a hydrous gel sheet having an adhesive conductive surface (hereinafter simply referred to as an adhesive sheet). And a body portion 20 extending so as to branch from the base end portion 10 (see FIGS. 3 and 4).

  And the main-body part 20 of the electrode conductor 1 in this embodiment is a pair of main body intermediate part 30 extended substantially in parallel mutually from the right-and-left end side of the base end part 10, and the end-opening shape from this main body intermediate part 30 And a main body distal end portion 40 extending integrally therewith. Here, the front end portion 40 of the main body is bent so that the front end side thereof is substantially perpendicular to the main body intermediate portion 30, so that a pair of left and right divergent portions extending from the main body intermediate portion 30 are at predetermined positions. Closed.

  The main body distal end portion 40 is a wide portion whose outer width is wider than the base end side, and has a function of preventing sticking of the left and right end portions of the adhesive surface of the adhesive sheet. The transverse inner edge portion 42 formed based on the tip side shape of the portion 2 functions as a portion that resists when pulled out from the pressure-sensitive adhesive sheet, which will be described later.

The main body 20 in the electrode conductor 1 has the following configuration in relation to the size of the pressure-sensitive adhesive sheet to be used. That is, the lateral maximum width (width W _{1 in} FIG. 2A) of the main body 20 is a dimension corresponding to the width in the short direction of the pressure-sensitive adhesive sheet to be used. The width is preferably substantially the same as or slightly shorter than the surface width. On the other hand, the width at the base end side to the center of the main body portion 20 (the width in this example the proximal portion 10 and the intermediate body 30) is of the order of half of the maximum lateral width W _1.

  Similarly, the length of the main body 20, in other words, the length from the member tip of the electrode conductor 1 to the base end side of the lightening opening 2 (length L in FIG. 2A) is the pressure-sensitive adhesive sheet to be used. Specifically, the width is preferably substantially the same as or slightly longer than the width of the adhesive conductive surface in the short direction of the pressure-sensitive adhesive sheet.

  By setting the width of the main body portion 20 in this way, the area of the conductive portion and the sufficient width of the lightening opening 2 are ensured, and the adhesive sheet is either horizontally (see FIG. 4) or vertically oriented. Even when attached in the direction, all of the main body tip portion 40 and most of the main body middle portion 30 of the electrode conductor 1 can be pasted in the adhesive conductive surface, and further, the adhesive on the outside of the main body portion 20 can be adhered. Area is also secured. In particular, by ensuring a sufficiently wide lateral maximum width of the electrode conductor 1 as described above, even when the longitudinal direction of the pressure-sensitive adhesive sheet is long and attached sideways to the electrode conductor 1, It is possible to avoid such a problem that the left and right ends of the adhesive conductive surface stick together.

In general, adhesive sheets such as cooling sheets that are generally supplied have a short width (and adhesive conductive surface width) of around 50 (and 45) mm. For this reason, in the present embodiment, the lateral maximum width (width W _{1 in} FIG. 2) of the electrode conductor 1 is about 36 mm, and the length from the front end of the member to the base end side of the lightening opening 2 (the length in FIG. 2). L) is set to about 45 mm. However, the present invention is not limited to this size.

  The base end portion 10 of the electrode conductor 1 is provided with a cord connecting portion 11 for connecting a cord for supplying current from the low frequency treatment device (energization cord 101). As shown in FIG. 2B, the cord connecting portion 11 includes a snap terminal 12 on the conductive surface 3 side and an insulating member 13 on the insulating surface 4 side, both of which are holes (not shown) of the base end portion 10. It connects so that it may fit through a part. Here, the snap terminal 12 is made of a conductive member such as stainless steel and has a convex shape that is detachably engaged with the connection terminal 102 of the energization cord 101 shown in FIG. On the other hand, the insulating member 13 has a convex portion (not shown) that is fitted into a concave shape on the back side of the snap terminal 12, and is fitted to the snap terminal 12 through the hole of the base end portion 10.

  The electrode conductor 1 has flexibility as a whole, and is made of a synthetic resin made of polyester in this embodiment. In addition, as the synthetic resin, for example, polyethylene, polypropylene, vinyl chloride, and the like can be used. Furthermore, materials other than synthetic resins may be used as long as they have flexibility. Thus, by using the electrode conductor 1 as a flexible member, the force is dispersed at the time of drawing described later, and damage to the member can be suppressed.

  The base end portion 10 may be formed of a non-flexible member. However, considering that an external force is applied during use, it is preferable that the base end portion 10 is also flexible. Has the advantage of being more distributed.

  FIG. 2B shows the electrode conductor 1 from the side, and as can be seen from the figure, the entire member has a substantially thin plate shape. In addition, although the member thickness of the electrode conductor 1 depends on the size and material, it is preferably as thin as possible from the viewpoint of ensuring good adhesiveness to the affected part of the adhesive sheet. In the case of the size and material described above, the thickness of the member is preferably in the range of approximately 100 μm to 125 μm.

In the present embodiment, as shown in FIG. 1 and FIG. 2A, the lightening opening 2 has a shape that is substantially similar to the outer shape of the main surface of the electrode conductor 1. is, that the frame width W ₂ in FIG. 2 (a) a thickness that is uniform throughout the body portion 20. The ones present inventor has actually prototype, the central width of the wall抜開opening 2 is substantially 10 mm, the tip width of approximately 25 mm, depth is approximately 40 mm, thereby frame width W ₂ of the main body portion 20 It was about 4-5 mm.

Incidentally, frame width W ₂ is not necessarily constant over the entire main body portion 20 is preferably from the viewpoint of uniformity of the current density during energization is the width of the conductive portion is constant, whereas in, when the structure frame width W ₂ is not uniform, the insulating portion 3a in order to uniform the width of the conductive portion, so 3b per unnecessarily large area (so-called dead space) occurs, from such point of view, it is preferred frame width W ₂ of the main body portion 20 is uniform.

  The conductive surface 3 of the electrode conductor 1 is printed with carbon as a conductive material, and an insulating region is provided at each edge of the surface. That is, since the edge portion (length of the edge circumference) is increased by the formation of the lightening opening 2, in this case, the conductive portion is directly connected to the affected portion through the edge due to the elasticity of the skin or deformation of the member during use. It is considered that the possibility of contact with (skin) increases accordingly.

  For this reason, in the electrode conductor 1, insulating portions 3a and 3b in which no conductive material is formed are provided on the outer peripheral edge and the inner peripheral edge of the conductive surface 3, respectively, so that current leakage during energization, that is, conductive It is prevented that an unpleasant irritation occurs when the part (carbon) directly touches the affected part (skin). In the present embodiment, regions of 0.2 mm from the inner peripheral edge and the outer peripheral edge are used as the insulating portions 3a and 3b, respectively.

  On the other hand, the main surface on the opposite side of the conductive surface 3 is an insulating surface 4 having an insulating structure, and the insulating region is connected to the insulating portions 3a and 3b. With such a configuration, unpleasant irritation at the time of energization is avoided in response to the elasticity of the skin at the time of application and deformation of the member.

  Next, the structure of an adhesive sheet is demonstrated. The adhesive sheet to which the electrode conductor 1 is attached is a thin soft sheet in which an adhesive conductive surface made of a conductive adhesive is formed on one side of a substrate such as a substantially rectangular nonwoven fabric (see FIGS. 3 and 4). . In general, a non-water-permeable film (not shown) such as a plastic sheet is attached to the adhesive conductive surface of the adhesive sheet, and the film is used immediately before application to the affected area. In the present embodiment, a cooling sheet using a hydrogel as an adhesive is used. However, the sheet is not limited to this as long as it has a conductive adhesive surface.

  In addition, the adhesive conductive surface of the adhesive sheet can contain various chemicals or cosmetics, and various components such as pigments and fragrances.

  Here, various components such as ascorbic acid (vitamin C component), l-menthol, methyl salicylate, and the like can be used as a drug or cosmetic component contained in the adhesive conductive surface.

  Below, the usage method etc. of the electrode conductor 1 are demonstrated. In the case of treatment with a low-frequency treatment device, the adhesive conductive surface of the adhesive sheet 100 is directed upward, for example, and the conductive surface 3 side of the electrode conductor 1 with respect to the adhesive conductive surface, The main body middle portion 30 is attached (applied) so that most or almost all of the middle portion 30 is in contact with the base end portion 10. At this time, since the adhesive conductive surface of the pressure-sensitive adhesive sheet 100 is exposed from the lightening opening 2 of the electrode conductor 1, the adhesive conductive surface can be brought into contact with the affected part in a free arrangement ( (See FIGS. 3 and 4). In addition, since the wide portion on the tip side has a sufficient width and appropriate rigidity as described above, the adhesive conductive surfaces on the left and right ends of the adhesive sheet stick to each other during the pasting operation to the affected area. Is avoided. In addition, about the attachment of the electricity supply cord 101 to the base end part 10 of the electrode conductor 1, either before or after attachment of the adhesive sheet 100 may be sufficient.

  Thus, according to the electrode conductor 1 of the present embodiment, when the affected part is stuck, not only the outside of the electrode conductor 1 but also the part in the lightening opening 2 abuts on the affected part and sticks. A good adhesion state and a good energization state at the central part of the affected part can be obtained.

  In addition, since the conductive surface 3 of the electrode conductor 1 extends in the depth direction and the width direction of the adhesive sheet 100, an energization current (predetermined from the low frequency treatment device is applied to the entire adhesive sheet during energization. Frequency pulse signal) is supplied uniformly. In particular, the energized state of the affected part pasting center corresponding to the meat opening 2 is good, and an appropriate stimulus according to the applied voltage is applied. Moreover, since the width of the conductive portion (carbon printed portion) is uniform as described above, the current density distribution can be made uniform during energization. In addition, the insulating portions 3a and 3b provided on the conductive surface 3 avoid unpleasant stimulation due to so-called current leakage.

  In addition, in the affixed state of the affected part, the contact portion and the contact area between the electrode conductor 1 and the adhesive sheet 100 are ensured widely as described above, and further, due to the transverse inner edge portion 42, the oblique side portion 41, and the like of the electrode conductor 1 Even when an external force is applied to the electrode conductor 1, it does not easily fall off.

  For example, as shown in FIG. 4, even when an external force is applied to the electrode conductor 1 by pulling the energizing cord 101, the transverse inner edge portion 42, the oblique side portion 41, and the like on the tip side of the lightening opening 2 are not attached to the adhesive sheet. The electrode conductor 1 does not come off easily because it is in close contact with the adhesive conductive surface 100. Moreover, since the electrode conductor 1 has flexibility, an external force is disperse | distributed by this and the peeling of the adhesive sheet 100 is prevented and the impact force to a conductor member is relieved.

  In addition, when pulled with a stronger force, when the adhesion between the skin and the adhesive sheet 100 is weaker than the adhesion between the electrode conductor 1 and the sheet, the electrode conductor 1 and the sheet together from the skin In the opposite case, the electrode conductor 1 is pulled out while the adhesive sheet 100 is stuck to the skin. In any case, the flexibility and overall shape of the electrode conductor 1 are removed. Since the external force is dispersed by this, damage to the conductor member is minimized.

  In this embodiment, after energization is finished, the pressure-sensitive adhesive sheet 100 with the electrode conductor 1 attached is peeled off from the affected area, and the base end portion 10 of the electrode conductor 1 is already removed from this state while holding the pressure-sensitive adhesive sheet 100 with one hand. What is necessary is just to hold | grip with one hand and to curve to the insulating surface 4 side. In this case, since the main body intermediate portion 30 is peeled off in the order of the divergent main body distal end portion 40, even if the pressure-sensitive adhesive sheet to be used has a strong adhesive force, the electrode guide is not applied to the member without excessive force. The child 1 can be easily removed.

  In addition, about an adhesive sheet, you may cut | disconnect and use it for suitable length in the range which is not smaller than the external shape of the main-body part 20 of the electrode conductor 1. FIG. In that case, it is also possible to use the pressure-sensitive adhesive sheet in a shape corresponding to the outer edge shape of the main body 20, for example. However, when using a pressure-sensitive adhesive sheet that does not have a strong adhesive force, such as a hydrous gel sheet, it is preferable to appropriately secure the area of the remaining portion from the electrode conductor 1 during mounting. FIG. 4 shows a case where an adhesive sheet having an adhesive conductive surface of 45 mm × 70 mm is attached sideways.

  As described above, according to the electrode conductor 1 to which the present invention is applied, a gap is formed in the center of the main surface of the member by the opening portion 2, and the adhesive conductive surfaces of the adhesive sheet used are left and right of the main body 20. Therefore, the adhesive conductive surface can be exposed at the center of the main surface of the conductor member. As a result, the entire guide member can be brought to the center of the adhesive sheet and thus to the center of the affected area, the degree of freedom of arrangement (direction, position, etc.) on the affected area of the adhesive is increased, and the area of the main surface is sufficiently increased. It is possible to obtain a good energized state in the central part of the affected area while securing the affected area.

  Hereinafter, modified examples of the electrode conductor will be described with reference to FIGS. 5 to 7. In addition, the same code | symbol is attached | subjected to the part of the same function as the above-mentioned, and description is abbreviate | omitted about the same structure.

  In the above-described embodiment, the oblique side portion 41 serving as the divergent portion is provided on the distal end side of the main body portion 20, but the entire main body portion 20 may have a divergent shape, and FIG. Like the electrode conductor 1A shown, the entire outer edge may have a divergent shape. In this case, the damage to the entire member is further reduced at the time of rapid pulling, and the durability is further improved as compared with the configuration of FIG.

  In the above-described embodiment, a single lightening opening is provided. However, for example, as shown in FIG. 6, a plurality of lightening openings may be provided. That is, in the electrode conductor 1B shown in FIG. 6, the transverse rib 50 parallel to the transverse inner edge portion 42 is formed between the main body intermediate portion 30 and the main body distal end portion 40, so that the opening portion 2 is the base end. It is divided into a side opening 2a and a tip side opening 2b. Also in this case, the conductive member and the insulating portion (3b) are formed on each edge portion as described above.

  According to the electrode conductor 1B having such a configuration, the transverse rib 50 ensures the rigidity of the center of the member, the electrical conductivity is improved before and after the transverse rib 50, and the inner edge 43 formed by the proximal end side opening 2a and the transverse rib 50. The pull-out resistance is improved by the above.

  The configuration in which the transverse rib is added is suitable, for example, when the electrode conductor has a large overall shape (and consequently a pressure-sensitive adhesive sheet to be used) or a wide lateral width. However, as the number of transverse ribs increases, the number of places where the adhesive sheet does not contact the affected area increases, the energization area decreases, and the number of divisions of the lightening openings 2 increases, so that the area per one opening is increased. Since the contact state of the exposed adhesive conductive surface to the affected area tends to be reduced due to a relative decrease, it is usually preferable that the number of added transverse ribs is small although it depends on the overall size.

  In the electrode conductor 1 described above, the outer edge of the main body tip portion 40 has a divergent shape. However, as another configuration example of the main body tip portion, for example, an electrode conductor 1C shown in FIG. It is good also as a shape. In this case, the extension side portion 44 formed so as to protrude to the left and right sides at the substantially central portion in the depth direction of the main surface has a larger resistance at the time of pulling out. The outer width of 30 may be relatively wide or may be tapered.

  Moreover, in the electrode conductor 1 mentioned above, although the shape of the main body intermediate | middle part 30 was made into linear form, this may be made into a wave shape, for example, and thereby drawing-out resistance becomes larger. The same applies to the shape of the main body tip 40.

  Furthermore, in each of the embodiments described above, the main body distal end portion 40 is configured to have the widest configuration, in other words, a configuration in which a wide portion having a wider outer width than the base end portion 10 is provided on the distal end side of the member. You may provide in the area | region (substantially center position in the depth direction) of the main body intermediate part 30. FIG. In this case, it is possible to secure a wider application area of the pressure-sensitive adhesive sheet 100 in the central part of the affected part.

  However, in the case where the remaining part of the adhesive sheet comes out on the distal end side (especially when the adhesive sheet 100 is attached in the vertical direction) in the central part of the affected area, the electrical conductivity (distance from the conductor member) and the actual use. Considering this, it is considered that the wide portion that exhibits the above-described functions such as pullout resistance is more preferably provided on the tip side.

  Furthermore, the overall shape of the member may be a substantially “U” shape, for example, a substantially “V” shape, without the opening shape as described above, From the viewpoint of ensuring the rigidity of the member and the resistance to pulling out, it is preferable to use an opening shape.

  In the above-described embodiment, the electrode conductor of the type in which the energization cord of the low frequency treatment device is detachably connected has been described, but it is needless to say that the configuration may be integrally connected to the energization cord.

  As described above, according to the electrode conductors 1, 1 </ b> A to 1 </ b> C of the respective embodiments, it is possible to bring the entire insulating surface 4 to the center of the sheet and thus to the center of the affected area at the time of application using the adhesive sheet, The degree of freedom of placement (orientation, position, etc.) on the affected area of the patch is increased, and the area of the main surface of the affected area is satisfactorily energized and the energization current supplied to the entire pressure-sensitive adhesive sheet is uniform while ensuring a sufficient surface area. , Resistance to pulling out during external force action, and prevention of adhesion of the left and right ends of the adhesive sheet, etc. can be obtained, and these various merits can be realized at low cost without incurring structural complexity. Become.

It is a top view which shows embodiment of the electrode conductor to which this invention is applied. It is a figure explaining the said electrode conductor, (a) is a top view which shows the main surface on the opposite side, (b) is a side view. It is a figure explaining the use condition of an electrode conductor, and is a figure which shows the case where two electrode conductors and an adhesive sheet are attached to both shoulders, and it supplies with electricity. It is a figure explaining the use condition of an electrode conductor, and is a figure which shows the state in which the electricity supply cord was pulled and external force was applied. It is a top view which shows other embodiment of the electrode conductor to which this invention is applied. It is a top view which shows other embodiment of the electrode conductor to which this invention is applied. It is a top view which shows other embodiment of the electrode conductor to which this invention is applied.

Explanation of symbols

1 Electrode conductor 2 Opening opening (thickening part)
3 Conductive surface 3a, 3b Insulating part (insulating region)
4 Insulating surface 10 Base end portion 11 Cord connecting portion 12 Snap terminal 13 Insulating member 20 Body portion 30 Body middle portion 40 Body tip portion (wide portion)
41 oblique side portion 42 transverse inner edge portion 1A, 1B, 1C electrode conductor 2a lightening opening portion 2b lightening opening portion 43 inner edge portion 44 extended side portion 50 transverse rib 100 adhesive sheet 101 current carrying cord 102 connection terminal

Claims (10)

An electrode conductor having a substantially thin plate shape, one of the main surfaces being attached to an adhesive sheet having an adhesive conductive surface, and the other being an insulating surface facing the affected area side,
The conductive surface is formed from a base end portion connected to the energization cord of the low-frequency treatment device and the base end portion side, and exposes the adhesive conductive surface of the pressure-sensitive adhesive sheet to be used at substantially the center of the main surface. And an electrode conductor for a low-frequency treatment device. The electrode conductor for a low-frequency treatment device according to claim 1, wherein the lightening portion has a shape that separates the main surface from the base end portion on both the left and right sides. The electrode conductor for a low-frequency treatment device according to claim 2, wherein the lightening portion has an opening shape. The electrode conductor for a low-frequency treatment device according to claim 3, wherein the lightening portion has a shape substantially similar to a main surface outer shape. The electrode conductor for a low-frequency treatment device according to any one of claims 1 to 4, further comprising a wide portion having a wider outer width than the base end side. The electrode conductor for a low-frequency treatment device according to claim 5, wherein the wide portion has a shape having a widest tip portion. The electrode conductor for a low-frequency treatment device according to claim 6, wherein the wide portion has a shape that is diverging in the distal direction. The electrode conductor for a low-frequency treatment device according to any one of claims 1 to 7, wherein the conductive surface is formed with an insulating region at an outer peripheral edge. The electrode conductor for a low-frequency treatment device according to any one of claims 1 to 8, wherein at least a portion attached to the adhesive conductive surface of the adhesive sheet is made of a flexible member. The electrode conductor according to any one of claims 1 to 9,
An electrode structure for a low-frequency treatment device, comprising: an adhesive sheet having an adhesive conductive surface having an outer shape larger than an outer edge shape excluding the base end portion of the electrode conductor.

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