JPH10258128A - Low-frequency hyperthermia conductor and low-frequency therapy device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the conductor satisfactory in fitting property, improved in strength against bending force, simple in structure and low in cost by providing an adhesive pad, a conductive layer, a PTC layer in non-contact with the conductive layer a low-frequency current electrode for energizing the conductive layer and hyperthermia electrodes for energizing the PTC layer in non-contact with the low-frequency current electrode. SOLUTION: This low-frequency hyperthermia conductor is obtained by laminating the adhesive pad 10, the conductive layer (carbon layer) 11, am electrode sheet 17 forming the electrode 14 for a low-frequency current to energize a surface on the side of the layer 11 of an insulated layer (resin sheet layer) 16 and a pair (positive/negative) of the hyperthermia electrodes 15 for energizing the PTC layer (positive temperature characteristic) 13 in non-contact with each other, and a heat insulated sheet 18 in order. Both of this layer 11 and the layer 13 are provided on the side of the pad 10 but insulated by a resin sheet 12 to be in a non-contact state. The electrode 14 is in contact with the layer 11 with a conductive part 11a projected through the hole 12a of the sheet 12 and the electrode 15 is in direct contact with the layer 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating low-frequency treatment conductor for performing low-frequency treatment while heating, and a low-frequency treatment device provided with the conductor.

[0002]

2. Description of the Related Art A thermal low-frequency treatment conductor is attached to a treatment site in order to perform treatment by applying a low-frequency current to the treatment site while heating the treatment site of a living body. A stainless steel electrode (heating electrode) that generates heat to warm itself, and a stainless steel electrode (low frequency current electrode) that conducts electricity to the conductive layer (for example, carbon layer)
There is one formed on one surface of one insulating layer (resin sheet).

In this conductor, a resin sheet is attached to an adhesive pad via a carbon layer, and a low-frequency current electrode and a heating electrode are formed on the surface of the resin sheet opposite to the carbon layer side. The low frequency current electrode extends linearly at the center of the resin sheet, and the heating electrode is formed continuously in a polygonal pattern so as not to intersect (contact) the low frequency current electrode. According to this conductor, the conductive layer is energized by the low-frequency current electrode, and the heating electrode generates heat by its own resistance.

[0004] However, since the heating electrode is made of stainless steel, the temperature response to the energizing time is poor. For example, if the room temperature is 20 ° C. and the maximum heating temperature is 43 ° C.,
Electricity is supplied to the heating electrode, and the temperature of the conductor is raised from 20 ° C to 43 ° C.
Long time to reach ° C. Usually 15 low frequency treatments
Since it takes about a minute for the longest time, if it takes a long time to reach 43 ° C., the treatment is almost at the end when it finally warms up, and there is no point in heating.

For this reason, the heat generating layer is formed of PTC (positive temperature characteristic).
Electrode device for low frequency treatment device composed of material (Jitsuho 6-2
No. 7168). In the electrode device described in this publication, a heater portion is constituted by a heat generating layer made of a PTC material and an electrode (heating electrode) for energizing the heat generating layer, and a conductive layer and an electrode for energizing the conductive layer ( The low-frequency current treatment electrode) constitutes a low-frequency treatment unit.

[0006] Positive Temperature Coefficie (PTC)
As is well known, the resistance value increases as the temperature rises, and a conductor having such a characteristic that the resistance value rapidly increases at, for example, about 43 ° C. is selected. According to this electrode device, the resistance value is low around room temperature (20 ° C.), the temperature rises sharply by energization, and the current value is suppressed by approaching 43 ° C. by increasing the resistance value. As a result, the current is cut off, the heat generation stops, the heating can be prevented, and the temperature can be kept almost constant at 43 ° C.

[0007]

However, in the electrode device disclosed in the above publication, the heater section and the low frequency treatment section are not only formed on separate resin sheets (insulating sheets), but also provided with a pin member and a power supply. Since the structure is such that the terminal and the low frequency treatment unit are electrically connected using the terminal, there are the following problems. As the number of resin sheets used increases, the electrode device as a whole becomes thicker, the bending force becomes harder (elasticity deteriorates), and not only does the fit to the treatment site deteriorate, but also
It becomes weak against the bending force applied when attaching and detaching to and from the treatment site. The structure is complicated, the production is troublesome, and the cost is high.

[0008] The present invention addresses such conventional problems,
It is an object of the present invention to provide a low-frequency therapeutic device and a low-frequency therapeutic device for heat treatment, which achieve good fit, improved strength against bending force, a simple structure, and low cost. .

[0009]

According to a first aspect of the present invention, there is provided a thermal low-frequency therapeutic lead according to the first aspect of the present invention, wherein the adhesive pad is attached to the surface of a living body, and the adhesive pad is provided on the adhesive pad. A conductive layer, and a PT in a non-contact state with the conductive layer.
A C (positive temperature characteristic) layer, a low-frequency current electrode for supplying current to the conductive layer, and a pair of heating electrodes for supplying power to the PTC layer in a non-contact state with the low-frequency current electrode. It is characterized by.

In this conductor, the conductive layer and the PTC layer are in a non-contact state, and the low-frequency current electrode and a pair of heating electrodes that are energized to each of the conductive layer and the PTC layer are in a non-contact state. The required number of insulating layers (resin sheets) can be reduced and the thickness of the conductor can be reduced as compared with the conventional electrode device. For this reason, the overall elasticity is improved, the fit to the treatment site is improved, and the bending force is increased. Further, the cost can be reduced by simplifying the structure and the manufacturing process.

According to a second aspect of the present invention, there is provided a thermoelectric low-frequency therapeutic conductor, comprising: an adhesive pad to be attached to the surface of a living body, a conductive layer, an insulating layer, and a PTC (positive temperature characteristic). A layer and an electrode sheet formed on a surface of another insulating layer on the conductive layer side, on which a low-frequency current electrode for supplying a current to the conductive layer and a pair of heating electrodes for supplying a current to the PTC layer are formed so as not to contact each other. It is characterized by being laminated in order.

In this conductor, a low-frequency current electrode and a pair of heating electrodes are provided on one surface of the insulating layer (the surface on the conductive layer side), and the low-frequency current electrode and the heating electrode are connected to the insulating layer. Since it has a structure in which it contacts the conductive layer and the PTC layer located on one side, respectively, it is possible to realize good fit, improved strength against bending force, a simple structure, and low cost, as described above.

According to a fourth aspect of the present invention, there is provided the thermal low-frequency treatment conductor according to the present invention, comprising: an adhesive pad to be attached to a living body surface; a conductive layer; and an insulating layer on the conductive layer side. An electrode for a low-frequency current to be passed through the conductive layer is formed, and P
It is characterized in that an electrode sheet on which a pair of heating electrodes for energizing a TC (positive temperature characteristic) layer is formed, a PTC layer, and an insulating layer are sequentially laminated.

In this conductor, a low-frequency current electrode is provided on one surface (the surface on the conductive layer side) of the insulating layer, and a pair of heating electrodes is provided on the other surface (the opposite surface). Since the current electrode is in contact with the conductive layer located on one side of the insulating layer and the heating electrode is in contact with the PTC layer located on the other side of the insulating layer, as described above, Good fit, improved strength against bending force, simple structure, and low cost can be realized.

According to a seventh aspect of the present invention, in addition to the constitution of the second aspect, the heating electrode has a plurality of linear branch patterns, and the direction of the branch pattern (stretching direction) is low. The pattern direction (stretching direction) of the electrode for frequency current intersects. In this conductor, the conductor tends to warp due to heat generated by the PTC layer, but the warpage is prevented by the intersection of the branch pattern direction of the heating electrode and the pattern direction of the low frequency current electrode.

According to an eighth aspect of the present invention, in addition to the configuration of the second aspect, the thermal low frequency treatment conductor is characterized in that the PTC layer has a shape that does not contact the low frequency current electrode. In this guide,
The electrode for low frequency current surely contacts the conductive layer, and the electrode for warming surely contacts the PTC layer. According to a ninth aspect of the present invention, there is provided a low-frequency treatment device comprising: the thermal low-frequency treatment conductor according to the first, second, or fourth aspect; and a main body for supplying a low-frequency current to the conductor. Features. In this treatment device, the above-described operation and effect can be obtained because the treatment device has the above-described configuration.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. FIGS. 1 and 2 are cross-sectional views schematically showing an example of the structure of the thermal low frequency treatment lead according to claims 2 and 3, respectively. However, in FIG. 1 and FIG. 2, each layer is shown separately for easy understanding, but actually each layer is in contact.

The conductor shown in FIG. 1 is provided with an electrode for low-frequency current and a pair of electrodes for heating on one surface of the insulating layer (the surface on the conductive layer side). Adhesive pad (gel pad) 10 attached to the surface of a living body, conductive layer (carbon layer) 11, insulating layer (resin sheet) 12
, PTC layer 13 and another insulating layer (resin sheet) 16
An electrode sheet 17 formed on the surface on the side of the carbon layer 11 on which a low-frequency current electrode 14 for energizing the carbon layer 11 and a pair of (positive and negative) heating electrodes 15 for energizing the PTC layer 13 so as not to contact each other; The sheet 18 is sequentially laminated.

In this conductor, both the carbon layer 11 and the PTC layer 13 are provided on the adhesive pad 10 side, but both layers 11 and 13 are insulated by the resin sheet 12 and are in a non-contact state. The low-frequency current electrode 14 comes into contact with the carbon layer 11 by a conductive portion 11a of the carbon layer 11 protruding through a hole 12a formed in the resin sheet 12, and the heating electrode 1
5 is in direct contact with the PTC layer 13. Resin sheet 12, 1
Reference numeral 6 denotes a PET film, a polyimide film, a cloth, or the like, and the electrodes 14 and 15 include, for example, a copper foil.

An example of the thickness of each layer in this conductor is as follows: the thickness of the adhesive pad 10 is 2 mm; the thickness of the carbon layer 11 is 40 μm; the thickness of the resin sheet 12 is 50 μm;
The thickness of the TC layer 13 is 40 μm, the thickness of the electrodes 14 and 15 is 18 μm, the thickness of the resin sheet 16 is 50 μm, and the thickness of the heat insulating sheet 18 is 1.5 mm. The conductor shown in FIG. 2 has a low-frequency current electrode provided on one surface (the surface on the conductive layer side) of the insulating layer and a heating electrode provided on the other surface (the opposite surface). A pressure-sensitive adhesive pad 20 to be adhered to the surface of the living body, a carbon layer 21, and a carbon layer 21 on the surface of the resin sheet 23 on the side of the carbon layer 21.
An electrode sheet 25 in which a low-frequency current electrode 22 for energizing the PTC layer 26 is formed, and a pair of heating electrodes 24 for energizing the PTC layer 26 on the opposite surface; a PTC layer 26;
7 and a heat insulating sheet 28 are sequentially laminated.

The thickness of each layer of this conductor is, for example, that the thickness of the adhesive pad 20 is 2 mm and the thickness of the carbon layer 21 is 40 μm.
m, the thickness of the low-frequency current electrode 22 is 18 μm, the thickness of the resin sheet 23 is 50 μm, and the thickness of the heating electrode 24 is 18 μm.
μm, the thickness of the PTC layer 26 is 40 μm, and the resin sheet 27
Is 50 μm, and the thickness of the heat insulating sheet 28 is 1.5 mm
It is.

Each element of the guide of the type shown in FIG. 1 will be further described. The pressure-sensitive adhesive pad 10 is the same as that used for a conventional low-frequency treatment device, and the carbon layer 11 attached to the pressure-sensitive adhesive pad 10 is shown in FIG.
And a protruding conductive portion 11a at two edges. The resin sheet 12 shown in FIG.
Has a hole 12a at a position larger than the carbon layer 11 and corresponding to the conducting portion 11a of the carbon layer 11.

The PTC layer 13 shown in FIG. 4A has a saw-toothed (spade) shape according to the pattern of the heating electrode 15 of the electrode sheet 17 shown in FIG. 4B. The electrode sheet 17 has the same shape and size as the resin sheet 12, and has a low-frequency current electrode 14 and a pair of (positive and negative) heating electrodes 15 formed on one surface. Low frequency current electrode 14
Extends along the periphery of two sides of the rectangular resin sheet 16 and has contact portions 14a at two places. This contact part 1
The conductive portion 11a of the carbon layer 11 is in contact with the electrode 4a through the hole 12a of the resin sheet 12, and the carbon layer 11 and the low-frequency current electrode 14 are electrically connected.

The heating electrode 15 is composed of a positive electrode pattern and a negative electrode pattern, and the positive and negative patterns are branched and extended so as not to contact each other alternately in the vertical direction in the drawing. Corresponding to the positive and negative patterns, the PTC layer 13 has a shape as shown in FIG.
Contacts the pair of heating electrodes 15 but does not contact the low frequency current electrodes 14. Therefore, a pair of heating electrodes 1
When a current is applied to 5, the PTC layer 13 generates heat.

In the electrode sheet 17, the PTC layer 13 generates heat by applying a current to the heating electrode 15, and the conductor tends to warp toward the heat insulating sheet 18 with the heat generation. However, if the low-frequency current electrode 14 is formed in a pattern as shown, warpage can be prevented. That is,
When the positive / negative pattern of the heating electrode 15 is as shown in FIG. 4B, the right and left ends of the electrode sheet 17 tend to bend toward the heat insulating sheet 18 due to the warpage. In response to this warp, when the low-frequency current electrode 14 is formed in a pattern as shown in the drawing, that is, when the positive and negative linear patterns of the heating electrode 15 extending in the vertical direction in the drawing are stretched, When the pattern of the low-frequency current electrode 14 is formed in a direction (horizontal direction) intersecting with the direction (vertical direction), the pattern of the low-frequency current electrode 14 acts to cancel the warpage,
It is possible to prevent the warpage of the conductor.

FIG. 5 shows another example of the pattern of the PTC layer 13, the low frequency current electrode 14, and the heating electrode 15. The low-frequency current electrode 14 of FIG. 5B extends linearly at the center of the resin sheet 16, and the positive and negative patterns of the heating electrode 15 are formed on both sides of the low-frequency current electrode 14. Also in this case, the plurality of positive and negative linear branch patterns extend in the up-down direction in the drawing, and the pattern of the low-frequency current electrode 14 exists in the direction (left-right direction) intersecting (orthogonal) in the up-down direction. It has a structure to prevent the warp of the conductor due to heat generation. In FIG. 5B, a contact portion between the low-frequency current electrode 14 and the carbon layer 11 is not shown.
The contact portions are provided at appropriate places (for example, one at the center or one at the left and right), and conduction with the carbon layer 11 is measured. 5 corresponding to the positive and negative patterns of the heating electrode 15.
The PTC layer 13 divided into two as shown in FIG.

Here, the difference between the electrode patterns of FIGS. 4 and 5 will be described. In the conductor of the type shown in FIG. 1, as shown in FIG. 6A, since the PTC layer 13 exists in addition to the resin sheet 12 between the carbon layer 11 and the low-frequency current electrode 14, Conducting portion 11a of layer 11 and electrode 1
In order for the PTC layer 4 to be in contact, the PTC layer 13 needs a print loss of width W (the distance from the hole 12a of the resin sheet 12 to the edge of the PTC layer 13). That is, if the thickness of the resin sheet 12 is 50 μm and the thickness of the PTC layer 13 is 40 μm, the distance between the carbon layer 11 and the electrode 14 is 90 μm.
m, the conduction loss between the carbon layer 11 and the electrode 14 through the 90 μm interval requires a printing loss of width W.

On the other hand, in the conventional conductor having the stainless steel electrode, as shown in FIG.
Since there is no TC layer, no printing loss of the PTC layer is required at all. If the thickness of the resin sheet 12 is also 50 μm, the holes 12a of the 50 μm resin sheet 12 are similarly formed.
The conductive portion 11a of the carbon layer 11 may be brought into contact with the low-frequency current electrode 14 'made of stainless steel.

As described above, in the conductor of the type shown in FIG.
Since the printing loss of the C layer 13 exists, when the low-frequency current electrode 14 is located at the center as shown in FIG. 5B, the pattern forming region of the heating electrode 15 becomes narrow, and the P
The area of the TC layer 13 is reduced, which is disadvantageous in terms of heat generation efficiency. However, if the low-frequency current electrode 14 is provided at the end as shown in FIG. 4B, the printing loss of the PTC layer 13 can be brought to the space at the end of the resin sheet 16, so that the heating A large pattern formation region of the electrode 15 can be secured, and the area of the PTC layer 13 is increased, which is advantageous in terms of heat generation efficiency.

Next, each element of the guide of the type shown in FIG. 2 will be further described. In this type of conductor, FIG. 8 is a plan view of the portion where the electrode sheet 25 and the PTC layer 26 are provided as viewed from the heat insulating sheet 28 side (viewed from arrow A) in FIG.
8A is a plan view as seen from the side of the adhesive pad 20 (viewed from arrow B), as shown in FIG. However, the resin sheet 27 is omitted.

In FIG. 8A, heating electrodes 24 are formed on one side of the resin sheet 23 of the electrode sheet 25 in a positive / negative pattern as shown in FIG. 26 are formed in contact with each other. On the other hand, on the other surface of the resin sheet 23, the low-frequency current electrode 22 is formed in the same pattern as the heating electrode 24, and the carbon layer 21 is formed in contact with the low-frequency current electrode 22 in this pattern. I have. Low frequency current electrode 22
And the pattern of the heating electrode 24 are shown in FIGS.
Are shown in the same direction, but since they are viewed in opposite directions (vertical direction), they are actually point-symmetric with respect to the center of the resin sheet 23 and extend in directions intersecting (perpendicular) to each other. .

The low frequency current electrode 22 and the heating electrode 2
According to the pattern No. 4, it is possible to prevent the warpage of the conductor due to the heat generation of the PTC layer 26, as in the case of the conductor of the type shown in FIG. In other words, since the heating electrode 24 is a pattern extending in an oblique direction in the drawing, if the pattern of the low-frequency current electrode 22 is formed in a direction (perpendicular direction) intersecting the pattern, that is, the pattern of the electrodes 22, 24 Are formed point-symmetrically with respect to the center of the resin sheet 23, the warpage of the conductor can be prevented.

The low-frequency current electrode 22 and the heating electrode 2
It is preferable that the pattern No. 4 is the same as point symmetric as possible. In other words, in the manufacturing process of the lead,
In the step of forming the PTC layer 26, the PTC is printed and then baked at a high temperature for about one hour. At this time, warpage may occur.
It is desirable that the patterns 2 and 24 be the same as much as possible, as shown in FIGS.

FIG. 9 (a) shows a plan view of the entirety of the thermal low-frequency therapeutic conductor configured as described above (on the side of the adhesive pad), and FIG. 9 (b) shows a side view thereof. The conductor 30 shown here is obtained by attaching an adhesive pad 32 to an adhesive pad attaching portion 31 and is used by attaching the adhesive pad 32 to the surface of a living body. The adhesive pad affixing part 31 is a carbon layer 11, a resin sheet 12, a PTC layer 1
3, consisting of an electrode sheet 17 and a heat insulating sheet 18;
In the type of conductor, the carbon layer 21 and the electrode sheet 2
5, a PTC layer 26, a resin sheet 27, and a heat insulating sheet 28.

According to such a conductor 30, in the type shown in FIG. 1, on one side of one resin sheet 16, a low-frequency treatment section composed of the low-frequency current electrode 14 and the carbon layer 11, In the type shown in FIG. 2, a low-frequency current electrode 22 and a carbon layer 21 are provided on one side of one resin sheet 23. Since the treatment section is provided with a heater section comprising the heating electrode 24 and the PTC layer 26 on the other surface side, the low frequency treatment section and the heater section are compared with the conventional conductor in which the heater sections are respectively formed on separate resin sheets. In any case, the number of required resin sheets is reduced, and the thickness of the conductor is correspondingly reduced, and the resistance to bending stress is increased.

A low-frequency treatment device provided with such a conductor 30 is, for example, as shown in FIG. The treatment device shown here is the same as the conventional treatment device, and includes a main body 40 having an electric circuit for generating a low-frequency current, switches, and the like, and a pair of conductors of the above configuration connected to the main body 40 by a lead wire 41. And a child 30. The main body 40 has a power ON /
An intensity / power dial 50 for turning off and changing the intensity of the low frequency current, an intensity display 51 for displaying the power ON / OFF and the intensity of the low frequency current, and a fast / slow cycle of the low frequency output. Speed switch 52, an output display 53 that flashes in synchronization with the low frequency output,
A heat switch 54 for turning on / off the power supply to the heater to heat the conductor 30, and a heat display 55 illuminated when the heat is output
Are provided.

The main body 40 and the conductor 30 are connected to the conductor plug 57 attached to one end of the lead wire 41 by the output port 5 of the main body 40.
6 to be connected. The main body 40 has A
An AC adapter 59 is connected via a C adapter jack 58. This low-frequency treatment device uses
As shown in FIG. 1, the lead 30 is attached to the treatment site 60 of the living body. At this time, since the lead 30 is thin and excellent in elasticity, even if the treatment site 60 is a curved surface, it has a good fit to the curved surface, and can be securely adhered to any treatment site 60. . As shown in FIG. 12, when the guide 30 is attached to and detached from the treatment site 60 (particularly when the guide 30 is removed), a bending force is applied to the guide 30, but the guide 30 is thin and bent. Since it is strong against stress, breakage due to bending can be prevented.

In the above embodiment, as a structure for preventing the warpage of the conductor, in the conductor of the type shown in FIG. 1, the pattern direction of the low-frequency current electrode 14 and the branch pattern direction of the heating electrode 15 intersect. 2, the pattern of the electrode 22 for low frequency current and the pattern of the electrode 24 for heating are provided point-symmetrically with respect to the center of the resin sheet 23. Is also good. That is, the electrode sheet 1 is used in both types of the conductors shown in FIGS.
7 and 25, the resin sheets 16 and 23 are made of P
Since it is made of ET film, polyimide film, cloth, etc., it is fibrous. Therefore, even if the fiber directions of the resin sheets 16 and 23 and the branch pattern directions of the heating electrodes 15 and 24 intersect, warping of the conductor can be prevented by the same action.

[0039]

As described above, according to the thermal low frequency treatment lead of the present invention, the following effects can be obtained. (1)
To (3) are obtained. (1) The required number of insulating layers (resin sheets) can be reduced as compared with the conventional one, and the thickness of the conductor can be reduced. For this reason, the overall elasticity is improved, the fitting property to the treatment site is improved, and it is possible to securely adhere to the curved treatment site. (2) It is resistant to bending stress, can prevent breakage, and increases durability. (3) The structure and the manufacturing process can be simplified, and the cost can be reduced.

The following effects are obtained in addition to the effects (1) to (3). According to the conductor of the third aspect, the heat generation efficiency is improved while effectively utilizing the space. According to the lead, the warp of the lead due to heat generation can be prevented, and the fit to the treatment site is further improved. According to the conductor of claim 8, the electrode for low frequency current is on the conductive layer, and the electrode for heating is PT.
C layer can be reliably contacted.

According to the ninth aspect of the present invention, the above-described effects can be obtained since the low-frequency therapeutic device has the above-described conductor.

[Brief description of the drawings]

FIG. 1 is a sectional view schematically showing a structure of a conductor according to one embodiment (claim 2).

FIG. 2 is a sectional view schematically showing a structure of a conductor according to another embodiment (claim 3).

3A and 3B are a plan view of a carbon layer and a plan view of a resin sheet in the conductor of the type shown in FIG.

FIG. 4 is a plan view (a) of a PTC layer and a plan view (b) of an electrode sheet in the conductor of the type shown in FIG.

5 (a) is a plan view of another example of a PTC layer and FIG. 5 (b) is a plan view of another example of an electrode sheet in the conductor of the type shown in FIG.
It is.

FIGS. 6A and 6B are cross-sectional views of a main part showing a conduction state between a carbon layer and a low-frequency current electrode in a conductor of the type shown in FIG. 1; It is.

FIG. 7 is an exploded view of the conductor of the type shown in FIG. 2 divided into three parts.

8 is a plan view (a) of a portion composed of an electrode sheet and a PTC layer as viewed from an arrow A and a plan view (b) viewed from an arrow B in the conductor of FIG. 7;

FIG. 9 is a plan view (a) and a side view (b) of the entire conductor viewed from the adhesive pad side.

FIG. 10 is an external configuration diagram illustrating an example of a low frequency treatment device.

FIG. 11 is a view showing a state in which a conductor of the low-frequency treatment device is attached to a treatment site.

FIG. 12 is a diagram showing a state when a conductor of the low-frequency treatment device is attached to and detached from a treatment site.

[Explanation of symbols]

 10,20 Adhesive pad 11,21 Carbon layer (conductive layer) 11a Conducting part 12,16 Resin sheet (insulating layer) 12a Hole 13,26 PTC layer 14,22 Low frequency current electrode 14a Contact part 15,24 Heating Electrodes 17, 25 Electrode sheet 18, 28 Heat insulation sheet 23, 27 Resin sheet (insulating layer)

Claims (9)

[Claims] 1. An adhesive pad to be attached to the surface of a living body, a conductive layer provided on the adhesive pad, a PTC (positive temperature characteristic) layer not in contact with the conductive layer, and a conductive layer. A low-frequency therapeutic electrode for heat treatment, comprising: a low-frequency current electrode to be energized; and a pair of heating electrodes for non-contact with the low-frequency current electrode and for energizing the PTC layer. 2. An adhesive pad to be adhered to a living body surface from an application side of the living body surface, a conductive layer, an insulating layer, and a PTC.
A (positive temperature characteristic) layer and a pair of a low-frequency current electrode for supplying a current to the conductive layer and a pair of heating electrodes for supplying a current to the PTC layer are formed on the surface of the insulating layer on the side of the conductive layer so as not to contact each other. And a heat treatment low-frequency treatment conductor, which is formed by sequentially laminating electrode sheets formed in this manner. 3. The low-frequency current electrode is formed along a peripheral portion of an insulating layer, and the pair of heating electrodes is formed over the remaining portion of the insulating layer. 2. The thermal low frequency treatment guide according to item 2. 4. An electrode for a low-frequency current which flows through the conductive layer from the side of the living body to which the adhesive is applied, the conductive layer, and the insulating layer on the conductive layer side. To form
A thermal low-frequency treatment characterized by laminating an electrode sheet having a pair of heating electrodes for energizing a PTC (positive temperature characteristic) layer on the opposite surface, a PTC layer, and an insulating layer in this order. Guide. 5. The thermal low frequency treatment according to claim 4, wherein the pattern of the low frequency current electrode and the pattern of the pair of heating electrodes are point-symmetric with respect to the center of the insulating layer. Guide. 6. The insulating layer of the electrode sheet is made of fibrous material, the heating electrode has a plurality of linear branch patterns, and the fiber direction of the insulating layer and the branch pattern direction of the heating electrode (stretching). 5. The thermal low frequency treatment conductor according to claim 2, wherein the directions intersect. 7. An adhesive pad to be attached to the surface of a living body from the side to which the living body is attached, a conductive layer, an insulating layer, and a PTC.
A (positive temperature characteristic) layer and a pair of a low-frequency current electrode for supplying a current to the conductive layer and a pair of heating electrodes for supplying a current to the PTC layer are formed on the surface of the insulating layer on the side of the conductive layer so as not to contact each other. The heating electrode has a plurality of linear branch patterns, and the direction of the branch pattern (stretching direction) and the pattern direction of the low-frequency current electrode (stretching direction) intersect with each other. A thermal low frequency treatment conductor characterized by the following. 8. An adhesive pad to be attached to the surface of a living body from the application side of the surface of the living body, a conductive layer, an insulating layer, and a PTC.
A (positive temperature characteristic) layer and a pair of a low-frequency current electrode for supplying a current to the conductive layer and a pair of heating electrodes for supplying a current to the PTC layer are formed on the surface of the insulating layer on the side of the conductive layer so as not to contact each other. And a PTC layer having a shape that does not contact the low-frequency current electrode. 9. A low-frequency treatment device comprising: the thermal low-frequency treatment conductor according to claim 1, 2 or 4, and a main body for supplying a low-frequency current to the conductor.