JP2515900B2 - Low frequency therapy device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a low-frequency therapeutic device for treating stiff shoulders and the like in home health care equipment by low-frequency electric pulses for treatment. In particular, the present invention relates to an auxiliary conductor that is detachably attached to a treatment device main body integrally provided with a treatment electrode part for use.

(Prior Art) An example of a conventional integrated low-frequency treatment device of this type will be described below.
A description will be given based on FIG. 12 and FIG.

Reference numeral 1 denotes a treatment device main body. The treatment device main body 1 has a built-in circuit portion for generating and outputting a low-frequency electric pulse including a power source, and a semicircular shape electrically connected to this circuit portion. Adhesive electrode parts 2 are provided side by side on the bottom surface. The treatment device body 1 has a circular planar outer shape.

Reference numeral 3 denotes an auxiliary conductor as an attachment which is detachably attached to the treatment device body 1 and is used. The auxiliary conductor 3 is a circular sheet 4 having a larger planar shape than the treatment device body 1. A pair of semicircular electrode plates 5 are provided side by side, and conductive gels 6 are attached to the bottom surfaces of these electrode plates 5, respectively. The sheet 4 is made of a thin and flexible insulator. On the other hand, the both electrode plates 5 are made of a conductor such as aluminum,
It is thin and flexible, and has a structure in which both sides are coated while being separated by the sheet 4. In addition, the sheet 4 has a pair of semicircular openings 7 into which the adhesive electrode portions 2 of the treatment device body 1 are fitted, respectively, on the upper surface side, and the openings 7 correspond to the openings 7. And a pair of larger semicircular openings 8 are formed on the bottom surface side. At the same time, the two electrode plates 5 face the two pairs of openings 7 and 8, respectively, and further, the conductive gel 6 having adhesiveness is provided on the bottom surfaces of the electrode plates 5 through the openings 8. It is attached. That is, the two electrode plates 5 and the conductive gel 6 respectively form an adhesive electrode portion.

Then, when the treatment is performed using only the treatment device body 1, the adhesive electrode portion 2 of the treatment device body 1 is attached to the human body. In this way, the integrated low-frequency treatment device can be easily treated by simply mounting the small and lightweight treatment device main body 1 on the treatment portion of the human body, and is easy to carry and convenient.

However, since the area of the pair of adhesive electrode portions 2 of the treatment device body 1 is small and the maximum distance between the electrode portions 2 is also small, these electrode portions 2 do not easily hit the two pots of the human body. In low-frequency treatment, when a pair of electrode portions are respectively applied to different pots of the human body, an electric current flows inside the human body, and a comfortable and effective treatment can be performed. However, as described above, unless the electrode portion 2 is placed on another pot of the human body, when an electric pulse is output from the pot, the current does not pass through the inside of the human body but flows on the surface of the human body. The small area of 2 and the large contact resistance between the electrode portion 2 and the human body may cause a stinging and unpleasant pain.

In addition, since the treatment device body 1 is not flexible and the adhesive electrode portion 2 is similarly small, the adhesive force sharply decreases, especially when the number of times of use increases, and the adhesive electrode portion 2
Sticking to the human body's skin becomes worse.

Therefore, when treating a part of the human body where the two pots are relatively distant from each other, the large-sized auxiliary conductor 3 is used.
It is advisable to attach the to the treatment device main body 1 for treatment. In order to attach the auxiliary conductor 3 to the treatment device body 1, the treatment device body 1 is placed on the auxiliary conductor 3 and both adhesive electrode portions 2 of the treatment device body 1 are placed in the openings 7 of the seat 4 of the auxiliary conductor 3. It is directly attached to the upper surface of both electrode plates 5 of the auxiliary conductor 3 via. Then, the conductive gels 6 of the auxiliary conductor 3 are attached to the human body while the auxiliary conductor 3 is appropriately bent. In this state, both adhesive electrode portions 2 of the treatment device body 1 are electrically connected to the human body through both electrode plates 5 of the auxiliary conductor 3 and the conductive gel 6.

The conductive gel 6 of these auxiliary conductors 3 has a larger area than the electrode portion 2 of the treatment device body 1 and has a large conductive area with the human body, and thus is likely to be applied to different pots of the human body. Therefore, by using the auxiliary conductor 3, it is possible to prevent a tingling and unpleasant feeling when the electric pulse is output.

(Problems to be Solved by the Invention) However, in the conventional low-frequency treatment device, the treatment device main body 1 can be attached to the auxiliary conductor 3 in any orientation within a single plane. Since 1 is not mechanically positioned in the circumferential direction with respect to the auxiliary conductor 3, both electrode parts 2 of the treatment device body 1 are aligned so as to be attached to both electrode plates 5 of the auxiliary conductor 3, respectively. However, there is a problem in that it is difficult to attach the treatment device body 1 to the auxiliary conductor 3 because of the trouble. And
It is possible that the position of the treatment device body 1 with respect to the auxiliary conductor 3 is mistaken and the electrode portion 2 of the treatment device body 1 is attached across both electrode plates 5 of the auxiliary conductor 3. ,
In this state, both electrode portions 2 of the treatment device body 1 are the auxiliary conductors 3.
Since the electrodes 5 are electrically connected to each other, the electric pulse is not output to the human body.

Further, since the treatment device body 1 is simply placed on the auxiliary conductor 3 and those electrode portions 2 are simply attached to the electrode plate 5, the holding of the treatment device body 1 with respect to the auxiliary conductor 3 is uncertain. There was also a problem. At the same time, since the treatment instrument body 1 is not reliably positioned with respect to the supplementary conductor 3, the treatment instrument body 1 is rubbed with clothes or the like while the supplementary conductor 3 is attached to the human body. It may be misaligned with. When the auxiliary conductor 3 is displaced in this way, even if the two electrode portions 2 of the treatment device body 1 are correctly adhered to both electrode plates 5 of the auxiliary treatment device 1 at first, the treatment device body 1
The electrode part 2 of 2 may straddle both electrode plates 5 of the auxiliary conductor 3 and may malfunction. Further, in some cases, the treatment device main body 1 may come off from the auxiliary conductor 3.

The present invention is intended to solve the above-mentioned problems, and secures the therapeutic device body to the auxiliary conductor in a state where both electrode parts of the therapeutic device body are in proper contact with both electrode parts of the auxiliary conductor. It is an object of the present invention to provide a low-frequency therapeutic device that can be easily mounted and that is surely held in use, and that there is no risk of malfunction.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a treatment device main body, a power source such as a battery built in the treatment device main body, a pulse generation circuit, and a pulse output circuit. A circuit unit including a control circuit for controlling the pulse generation circuit and the pulse output circuit, a pair of electrode units electrically connected to the circuit unit and arranged side by side on the bottom surface of the treatment device body, An auxiliary conductor detachably attached to the treatment device body,
The auxiliary conductor is provided with a base body having a planar shape larger than that of the main body of the treatment device, the bottom surface side of the base body partially exposed to the top surface side, and the treatment placed on the top surface side. In a low-frequency treatment device having a pair of auxiliary conductor-side electrode parts to which a pair of electrode parts of the device body are respectively in contact and electrically connected, a planar outer shape of the therapy device body has two or less axes of symmetry. Shape, for example, a substantially rectangular shape, and a frame portion having a shape conforming to the planar outer shape of the medical treatment device main body is formed on the upper surface side of the base body of the auxiliary conductor, and the medical treatment device main body is fitted inside. Is.

(Operation) In the low frequency treatment device of the present invention, when the treatment is performed only by the treatment device main body, the pair of electrode portions on the bottom surface of the treatment device main body are brought into contact with the skin of the human body, and the treatment device main body is attached to the human body. To do. At this time, the electric pulse generated and output by the circuit unit including the power supply, the pulse generation circuit, the pulse output circuit, and the control circuit in the treatment device body is applied to the human body from the pair of electrode portions of the treatment device body. It In addition, when the treatment is also performed using the auxiliary conductor, first, the treatment device main body is attached to the auxiliary conduction member. However, when the treatment device main body is attached to the auxiliary conduction member, the treatment device formed on the base of the auxiliary conduction member is used. The treatment device main body is placed on the upper surface side of the base while fitting the treatment device main body in the frame portion having a shape along the planar outer shape of the device main body, and the auxiliary conductor partially exposed on the upper surface side of the base body. The two electrode parts on the child side are brought into contact with the two electrode parts of the main body of the treatment device to be electrically connected. In this state, the treatment device main body is held by the auxiliary conductor also by the frame portion, but the planar outer shape of the treatment device main body fitted in this frame portion has a symmetry axis of two or less. Therefore, the treatment device main body can take up to two directions with respect to the auxiliary conductor. As a result, the treatment device main body is reliably and easily positioned with respect to the auxiliary conductor, and both electrode portions arranged on the bottom surface of the treatment device main body do not straddle both electrode portions of the auxiliary conductor. The electrodes can be contacted with the auxiliary conductor side electrodes. Further, both electrode portions on the bottom surface side of the base of the auxiliary conductor having a larger planar shape than the main body of the treatment device are brought into contact with the skin of the human body, and the auxiliary conductor is attached to the human body.
Then, the electric pulse output from the circuit unit in the treatment device body is applied to the human body from the electrode portion of the auxiliary conductor via both electrode portions of the treatment device body.

(Embodiment) The configuration of one embodiment of the low-frequency treatment device of the present invention will be described below.
This will be described with reference to FIGS.

In FIG. 1 to FIG. 5, 11 is a treatment device main body, and this treatment device main body 11 is the same as the conventional one, and a main body case 12 made of an insulating material such as synthetic resin, and this main body case.
It is composed of a circuit portion (not shown) built in 12 and an adhesive pad 13 as shown in FIGS. 6 and 7 which is detachably attached to the bottom surface of the main body case 12.

The body case 12 is flat and has a substantially rectangular outer shape in plan view, and has two axes of symmetry. Then, as shown in FIG. 8, on the bottom surface of the main body case 12, a pair of metal electrode plates 14 made of a conductor and electrically connected to the circuit portion is fixed. One electrode plate
14 is a positive electrode and the other electrode plate 14 is a negative electrode. Each of the electrode plates 14 has a substantially rectangular shape, and when separated from each other, the electrode plate 14 has a flat outer shape of the main body case 12.
They are arranged in the direction of the axis of symmetry of the book, that is, in the direction of the long side of the main body case 12, and are symmetrical with respect to the other axes of symmetry.

The circuit section includes a battery as a power source, a pulse generation circuit, a pulse output circuit, a control circuit for controlling the pulse generation circuit and the pulse output circuit, and a main switch 15 and a strength which are operation means of the control circuit. The adjustment switch 16 is included. The main switch 15 is for selecting the on / off state of the power source and the waveform of the electric pulse to be output. The slidable operating element of the main switch 15 is one side surface portion of the main body case 12. Is exposed to. Further, the strength adjusting switch 16 is for adjusting the strength of the electric pulse, the push button of the strength adjusting switch 16 including a tact switch,
It is exposed on the upper surface of the main body case 12.

The adhesive pad 13 is composed of a sheet-like core material 17 made of an insulating material such as non-woven fabric, and a pair of semi-solid conductive gels 18 fixedly held by the core material 17.
The conductive gel 18 is, for example, an acrylic water-containing gel having adhesiveness and salt mixed as an electrolyte. Further, the outer shape of the core material 17 surrounding the periphery of the conductive gel 18 is substantially the same as the planar outer shape of the main body case 12, but the both conductive gels 18 are both electrodes of the main body case 12, respectively. They have substantially the same shape as the plate 14, and are arranged in the long side direction of the core material 17 in a state of being slightly separated.
Then, the core material 17 coated with glue on one surface side is adhered to the bottom surface of the main body case 12, and the both conductive gels 18 are respectively adhered to both electrode plates 14 to be electrically connected. The conductive gel 18 and the electrode plates 14 form a pair of adhesive main body side electrode portions 19 of the treatment device main body 11, respectively.

In FIGS. 1 to 5 and 9 to 11, reference numeral 21 is an auxiliary conductor that is detachably attached to the treatment device main body 11 and is used. The auxiliary conductor 21 is a non-conducting portion. And a pair of auxiliary conductor side electrode portions 23 which are conducting portions.

The base body 22 is formed into a substantially rectangular plate shape with an insulating silicone rubber or the like, has flexibility, and has a plane shape significantly larger than the treatment device body 11, The treatment device body 11 is placed in the central portion on the upper surface side. The base 22 may be formed of, for example, a soft vinyl chloride resin, but the vinyl chloride resin is easily discolored, and thus silicone rubber is preferable. A positioning wall 24 is integrally formed on the peripheral edge of the bottom surface of the base 22, and a pair of openings 25 are formed in the central portion of the base 22. These openings 25
Is separated by a separator portion 26 that is integral with the base body 22, but both electrode portions 19 of the treatment device body 11 are inserted respectively. Therefore, the two openings 25 are arranged in the long side direction of the base 22, although the two-dimensional shape is slightly larger than the electrode portion 19 of the treatment device main body 11 in plan view.

Further, a frame 27 is integrally formed on the upper surface of the base 22 so as to surround the openings 25 and project. The frame 27 has a substantially rectangular planar shape that follows the planar outer shape of the treatment device body 11, and the treatment device body 11 is fitted inside. In addition, a concave cutout 28 is formed on one short side of the frame 27 so that the main switch 15 of the treatment device main body 11 is opposed to the main switch 15.

The auxiliary conductor side electrode portions 23 are respectively provided in the base 22.
An electrode plate 29 fixed to the bottom surface of the electrode side by side in the direction of its long side,
It comprises a conductive gel 30 attached to the bottom surface of these electrode plates 29. Each of the electrode plates 29 is formed of a conductive rubber having flexibility, for example, a silicone rubber mixed with carbon into a substantially rectangular plate shape. Department
It is fitted on the inner peripheral side with 31 respectively. Both electrode plates 29 are completely separated by the separator portion 26. Further, these electrode plates 31 each having an area approximately half that of the base 22 in a plan view respectively close the openings 25, so that a part of each is also exposed on the upper surface side of the base 22. . The conductive gel 30 is the adhesive pad
13 is similar to the conductive gel 18 and has adhesiveness and flexibility, and has a planar shape of each of the electrode plates.
It is almost equal to 29. Then, the conductive gel 18 of both electrode portions 19 of the treatment device main body 11 is attached to the upper surfaces of both electrode plates 29 through the openings 25 of the base body 22 so as to be freely contactable and separable. Both electrode parts 19 of the main body 11
And both electrode portions 23 of the auxiliary conductor 21 are electrically connected to each other.

 Next, the operation of the above embodiment will be described.

When the treatment is performed using only the treatment device main body 11, the main switch 15 is turned on, and the conductive gels 18 of the pair of electrode portions 19 of the treatment device main body 11 are directly attached to the skin, respectively. The body 11 is attached to the human body. Then,
The high-voltage electric pulse generated and output by the circuit unit in the treatment device body 11 is applied to the human body at a low frequency from the pair of electrode plates 14 and the conductive gel 18 of the treatment device body 11. That is, a momentary current flows from the one electrode portion 19 that is the + pole to the other electrode portion 19 that is the negative electrode through the human body, which stimulates the human body and treats shoulder stiffness or muscle pain. Done.

When the main switch 15 is turned on, it is possible to select the type of pulse to be output, depending on whether the switch 15 is in the “battering” mode or the “fir” mode. In the "battering" mode, electric pulses are output in a constant cycle, and in the "fir" mode, a constant output period in which electric pulses are output in a relatively short cycle and a constant rest period are repeated. Further, by pressing the strength adjusting switch 16, the voltage of the electric pulse output to the human body, that is, the strength can be adjusted stepwise.

On the other hand, when treating a part of the human body where the two pots are relatively distant from each other, as shown in FIGS. 2 to 5, the treatment is performed by attaching the auxiliary guide 21 to the treatment device main body 11. Good. To attach the auxiliary conductor 21 to the treatment device body 11, the treatment device body 11 is fitted in the frame portion 27 of the base 22 of the auxiliary treatment device 21 with the bottom surface of the treatment device body 11 facing the auxiliary conduction member 21. Together,
The treatment device main body 11 is placed on the base 22, and the conductive gels 18 of the treatment device main body 11 are directly attached to the electrode plates 29 of the two electrode parts 23 of the auxiliary conductor 21 through the two openings 25 of the base 22, respectively. Stick it.

At this time, the planar outer shape of the medical treatment device main body 11 is substantially rectangular and has only two axes of symmetry, and the medical treatment device main body 11 is fitted into the frame portion 27 having a shape along the planar external shape. As a result, the treatment device main body 11 can take only two directions with respect to the auxiliary conductor 21. However, auxiliary conductor
In order to be able to operate the main switch 15 even when the treatment device main body 11 is attached to 21, it is advisable to position the operator of this main switch 15 so as to face the notch 28 of the frame 27. In practice, the side surface of the treatment device main body 11 on which the operator is attached is attached along the short side portion of the frame portion 27 where the notch 28 is provided, and conversely, the side surface of the treatment device main body 11 on which the operation member is attached is attached. It is not mounted along the short side of the frame 27 on the side without the cutout 28. However, the treatment device main body 11 may be attached to the auxiliary conductor 21 in either direction as long as the notches 28 are formed on both short sides of the frame 27.

In any case, since the treatment device main body 11 can be attached to the auxiliary conductor 21 only in a state where the long side direction of the treatment device main body 11 is parallel to the long side direction of the auxiliary conduction member 21, the treatment device main body can be attached to the auxiliary conduction member 21. 11 can be reliably and easily aligned, both electrode portions 19 arranged in the long side direction on the bottom surface of the treatment device main body 11, without straddling both electrode portions 23 of the auxiliary conductor 21, Each of these electrode portions 23 is properly contacted. Therefore, accidents such as the positive and negative electrode portions 19 being electrically directly connected are reliably prevented.

Further, the conductive gels 18 of both electrode portions 23 of the auxiliary conductor 21 are attached to the skin, and the auxiliary conductor 21 is attached to the human body together with the treatment device body 11. At this time, the auxiliary conductor 21 is appropriately bent according to the curved surface of the human body.
Since the whole body is made of rubber and is extremely flexible, the auxiliary conductor 21 can be attached to the surface of the human body exactly, and its adhesive force is also improved. Also, the feeling of wearing becomes comfortable.

When the main switch 15 is turned on and the auxiliary conductor 21 attached to the treatment device main body 11 is attached to the human body in this way, the electric pulse output from the circuit part in the treatment device main body 11 is changed to the treatment device. Both electrode plates 14 of the main body 11, both conductive gels 18 of the adhesive pad 13, and both electrode plates 29 of the auxiliary conductor 21 in contact therewith
And applied to the human body via both conductive gels 30. Of course, since the two electrode parts 23 are independent of each other, the both conductive gels 30 are attached to the human body, and then the human body is passed from the positive electrode part 23 to the negative electrode part 23 for the first time. An electric current flows.

In this way, if the treatment is performed using the auxiliary conductor 21, the conductive area between the large conductive gel 30 and the human body is large, so that the opportunity for both conductive gels 30 to fall on another pot of the human body,
The number is higher than that when the treatment is performed only with the treatment device body 11. At the same time, the contact resistance between the conductive gel 30 and the human body is reduced, so that the tingling sensation at the time of outputting an electric pulse is less likely to be felt, and a pleasant and effective treatment can be performed. Also,
Even if the auxiliary conductor 21 is roughly attached to the human body, its conductive gel
Since the 30 hits the pot, it is not necessary to locate the pot very closely when mounting it on the human body.

In addition, the treatment device main body 11 is an auxiliary conductor of the conductive gel 18.
In addition to sticking to the electrode plate 29 inside 21, the frame 27 of the auxiliary conductor 21
Since the auxiliary conductor 21 is held by the fitting inside, the holding property is increased. Therefore, even when the auxiliary guide 21 is attached to a portion of the human body such as the shoulder located inside the clothes, the treatment device main body 11 does not come off from the auxiliary guide 21 by being rubbed by the clothes. Along with this, the treatment device body 11 having a substantially rectangular planar outer shape is fitted in the frame portion 27 having the same shape, and the treatment device body 11 is reliably positioned with respect to the auxiliary conductor 21. , Even if it is rubbed by clothes or the like, the treatment device body 11 does not shift with respect to the auxiliary conductor 21, and both electrode portions 19 of the treatment device body 11 straddle both electrode portions 23 of the auxiliary conductor 21. There is nothing to lose. Therefore, there is no malfunction and it can be used with confidence.

After the treatment, remove the conductive gel 30 from the skin,
The auxiliary conductor 21 is removed from the human body together with the treatment device body 11.

When the treatment device main body 11 is used alone again, the conductive gel 18 on the treatment device main body 11 side is peeled off from the electrode plate 29 of the auxiliary conductor 21, and the treatment device main body 11 is attached from the auxiliary conductor 21 to the adhesive pad 13. Remove with.

As described above, according to the above configuration, the treatment using only the small and lightweight treatment device main body 11 and the treatment using the large auxiliary conductor 21 can be performed. Either way, it's easy to use,
Further, the treatment device main body 11 can be easily attached to the auxiliary guide 21.

Also, if you use a large auxiliary conductor 21 with excellent flexibility,
Since the adhesion of the auxiliary conductor 21 to the human body is large and is maintained for a long time, the number of times the conductive gels 18, 30 can be used without being replaced can be increased.

In the illustrated embodiment, the area of the auxiliary conductor 21 is about four times as large as that of the treatment device body 11, but the auxiliary conductor 21 which is completely separate from the treatment device body 11 is different from the human body in manufacturing. It is possible to freely increase the size to increase the conduction area of the device or to make the size of the treatment device main body 11 substantially the same. At the same time, it is possible to easily enhance the adhesive strength and improve the feeling of use in manufacturing.

Further, in the above-mentioned embodiment, the planar outer shape of the treatment device main body 11 is substantially rectangular, but it is not limited to this. The planar outer shape of the treatment device main body 11 may be, for example, an elliptical shape having two symmetry axes, or may be a substantially isosceles triangular shape having one symmetry axis. Alternatively, the shape may be an asymmetric shape having no axis of symmetry. However,
When the symmetry axis is two, it is possible to surely prevent both the electrode parts 19 of the treatment device main body 11 from straddling the both electrode parts 23 of the auxiliary conductor 21, and surely the respective electrode parts 19, 23. In order to bring them into contact with each other, both electrode portions 23 are symmetrically arranged with respect to the intersection of the two axes of symmetry as in the above embodiment.
Is required.

〔The invention's effect〕

According to the present invention, the planar outer shape of the treatment device main body having the circuit portion built therein and the pair of electrode portions arranged side by side on the bottom surface has a symmetry axis of two or less, and is detachably attached to the treatment device main body. On the upper surface side of the base body of the auxiliary conductor having a pair of auxiliary conductor side electrode portions which are in contact with both electrode portions on the bottom surface side, the therapeutic instrument main body has a shape along the planar outer shape of the medical treatment instrument main body. Since the frame part to be fitted is formed, it is possible to surely prevent both electrode parts of the treatment device body from being contacted across both electrode parts of the auxiliary conductor, and it is possible to prevent malfunction.
Positioning can be easily performed so that both electrode portions of the treatment device main body are properly brought into contact with both electrode portions of the auxiliary conductor, and the treatment device main body can be easily attached to the auxiliary conductor. Also, by fitting the treatment device body into the frame as described above,
The treatment device main body is held securely against the auxiliary guide, and even if it is rubbed with clothes etc. during use,
A low-frequency treatment device that can be used with peace of mind because the treatment device main body does not shift or come off from the auxiliary conductor.

[Brief description of drawings]

1 to 11 show an embodiment of a low frequency treatment device of the present invention. FIG. 1 is a sectional view showing a state in which a treatment device main body and an auxiliary conductor are separated, and FIG. II-II sectional view of the figure, FIG. 3 is a plan view of the state in which the treatment device main body is attached to the auxiliary conductor,
4 and 5 are the same front and rear views, respectively, FIGS. 6 and 7 are side and bottom views of the adhesive pad, respectively, and FIG. 8 is a bottom view of the main body case of the treatment device main body. Figures 11 to 11 are plan views of the auxiliary conductor, respectively.
It is a side view and a bottom view. FIG. 12 is an upper perspective view showing an example of a conventional low frequency treatment device, and FIG. 13 is a lower perspective view of the same auxiliary conductor. 11 ... Treatment device main body, 19 ... Main body side electrode part, 21 ... Auxiliary conductor, 22 ... Base, 23 ... Auxiliary conductor side electrode part, 27 ... Frame part.

Claims (1)

(57) [Claims] Claim: What is claimed is: 1. A treatment device main body, a circuit portion including a power supply, a pulse generation circuit, a pulse output circuit, a control circuit for controlling the pulse generation circuit and the pulse output circuit, which is built in the treatment device main body, and the circuit portion. And a pair of electrode portions arranged side by side on the bottom surface of the medical treatment device main body and an auxiliary conductor detachably attached to the medical treatment device main body. A base having a plane shape larger than that of the main body of the therapeutic device, and a pair of electrodes of the main body of the therapeutic device disposed on the bottom side of the base with a part thereof exposed to the upper side and mounted on the upper side. And a pair of auxiliary conductor-side electrode portions that are in contact with each other and electrically connected to each other, and a planar outer shape of the treatment device main body has a shape having two or less axes of symmetry, and a base body of the auxiliary conductor. On the upper surface side of the Low-frequency electric therapy apparatus, characterized in that the treatment device body has a shape to form the frame portion to be fitted to the inside along the.