JPH03155873A - Low-frequency treating device - Google Patents

Abstract

PURPOSE:To allow the use of the low-frequency treating device of an electrode integration type as the low-frequency treating device of an electrode sepn. type as well by providing a polarity switching means which switches 1st and 2nd electrodes to the same polarity and an external electrode to a reverse polarity when the external electrode is connected to a juncture. CONSTITUTION:A movable contactor 22 parts from a stationary contactor 23 and comes into contact with a stationary contactor 21 when a plug 3 is inserted into a jack 2. The 1st and 2nd electrodes E1, E2 are held connected in this way. On the other hand, the 3rd electrode E3 is connected via a coated wire 4, a conductive part 32 and the stationary contactor 23 to the collector of a transistor Q2. The 1st and 2nd electrodes E1, E2 are, therefore, the positive pole and the 3rd electrode E3 is the negative pole in this case and the low-fre quency treating device A is used commonly with a treating element 5 for expan sion. The larger electrode area is taken and the inter electrode spacing is in creased if the treating element for expansion is connected in this way and, therefore, the treating effect is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a low-frequency treatment device that electrically stimulates the human body using low-frequency, high-voltage pulses.

[Prior Art] Conventionally, low-frequency technology has been used to provide electrical stimulation to the human body by bringing a pair of electrodes into contact with the surface of the human body and applying low-frequency, high-voltage pulses between the electrodes to obtain a therapeutic effect. Frequency therapy devices are widely used.

FIGS. 7(a) and 7(b) are a front view and a bottom view of a conventional low frequency treatment device. A pair of electrodes E are provided on the bottom of the housing 1.
1. E2 is placed. Further, inside the housing 1, a circuit as shown in FIG. 8 is built-in.

The DC voltage of the battery 10 is boosted by a booster circuit 11, and is turned on and off by a low frequency pulse generation circuit 12.
Applied between E2. The operations of the booster circuit 11 and the low frequency pulse generator circuit 12 are controlled by a control circuit 13. First, the transistor Q1 of the booster circuit 11 is turned on and off at high frequency by the control circuit 13. When transistor Q1 is turned on, current flows from the battery 10 through the inductor and through transistor Q1, and electromagnetic energy is stored in the inductor.Next, when transistor Q is turned off, current flows through the inductor. An electromotive force is generated in the continuing direction, and this electromotive force is superimposed on the voltage of the battery 10 to generate a high voltage. The capacitor C is charged by this high voltage via the rediode D. Next, the transistor Q2 of the low frequency pulse generating circuit 12 is turned on and off at low frequency by the control circuit 13. When transistor Q2 is turned on, the high voltage charged in capacitor C is applied between electrodes El and E2. Furthermore, when the transistor Q is turned off, no high voltage is applied between the electric currents ff1E 1 and E 2 , and therefore a low-frequency high voltage pulse is applied between tlE 1 and E 2 . Electrodes El, E
When 2 is brought into contact with the skin surface of the affected area such as the shoulder or waist of the human body,
A current flows through the human body, providing therapeutic effects through electrical stimulation.

[Problems to be Solved by the Invention] In the conventional example described above, low frequency The treatment device has been made smaller. However, such an electrode-integrated low-frequency treatment device has a problem in that the treatment effect is small because the electrode area is small and the distance between the electrodes is also short.

The present invention has been made in view of these points, and its purpose is to enable an electrode-integrated low-frequency treatment device to be used as a separate-electrode type low-frequency treatment device.

[Means for Solving the Problems] In order to solve the above problems, the present invention has the following features:
As shown in FIGS.
, E2 on the same surface of the housing 1, and a means for applying a low frequency pulse between the electrodes so that the first and second electrodes El and E2 have opposite polarities.
A connecting portion is provided for connecting the external electrode E3 via the conducting wire 4, and when the external electrode E3 is connected to this connecting portion, the first and second electrodes 11i! E 1 and E 2 have the same polarity, and the external electrode E3 is connected to the first and second electrodes @E 1 ,
It is characterized by comprising a polarity switching means for making the polarity opposite to E2.

[Function] In the low frequency treatment device of the present invention, an external electrode E is provided at the connection part.
3 are not connected, the first and second electrodes El arranged on the same surface of the housing 1.

A low frequency pulse is applied between the electrodes so that E2 has opposite polarity, and when the external electrode E3 is connected to the connection part, the first and second electric currents iE 1 and E 2 have the same polarity,
The external electrode E3 has the first and second tVilE 1 , E
Since a low frequency pulse is applied between the electrodes so that the polarity is opposite to that of 2, the electrode-integrated low frequency treatment device A can also be used as a separate electrode type low frequency treatment device. Therefore, if the electrode-integrated low-frequency treatment device A is used alone, a local treatment effect can be obtained, and if used together with the external type [E3, the electrode area and electrode spacing can be increased to increase the width of the electrode. A therapeutic effect can be obtained.

[Embodiment 1] FIG. 1 is a front view of an embodiment of the present invention. The basic configuration of the low frequency treatment device A is the same as the conventional example shown in FIGS. 7 and 8, except that a jack 2 having the structure shown in FIG. 2 is added. A plug 3 is detachably attached to this jack 2. The plug 3 has a conductive part 31 and an insulating part 32.

The conductive part 31 is connected to the electrode E3 of the additional treatment element 5 via the covered conductor 4. Electric f! The area of E3 is the electrode E1
, E2. The jack 2 has first to third contacts 21 to 23, which are connected as shown in the circuit diagram of FIG. The first contact 21 is a fixed contact connected to the first electrode E1. The second contact 22 is a movable contact connected to the second electrode E2. The third contact 23 is a transistor Q
This is a fixed contact connected to the collector of No. 2.

The operation of this embodiment will be explained below.

First, when the lug 3 is not inserted into the jack 2, the movable contact 22 is separated from the fixed contact 21 due to its own spring elasticity and is connected to the fixed contact 23. The same circuit as the conventional example shown is configured. At this time, the first electrode E1 becomes a positive electrode, the second electrode E2 becomes a negative electrode, and the low frequency treatment device A is used alone.

Next, when the plug 3 is inserted into the jack 2, the movable contact 22 is separated from the fixed contact 23 and comes into contact with the fixed contact 21, as shown in FIG. This brings the first and second t-poles E 1 and E2 into a connected state. On the other hand, the third electrode E3 includes the covered conductor 4 and the conductive part 31.
, are connected to the collector of the transistor Q2 via the fixed contact 23. Therefore, in this case, the first and second electrodes E 1 and E 2 are positive electrodes, the third electrode E3 is a negative electrode, and the low frequency treatment device A is used together with the additional treatment element 5. In this way, when the expansion treatment element 5 is connected,
Since the electrode area can be increased and the electrode spacing can also be increased, the therapeutic effect can be enhanced.

[Example 2] FIG. 4 is a front view of another embodiment of the invention.

This embodiment differs from the above-described embodiments in that a second low-frequency treatment device B can be used instead of the additional treatment element 5. The basic configuration of the second low frequency treatment device B is as follows:
This is similar to the conventional example shown in FIGS. 8 and 8, but differs in that a jack 6 having the structure shown in FIG. 5 is added. A plug 7 is detachably attached to this jack 6. Plug 7
has a conductive part 71 and an insulating part 72. Conductive part 71
is connected to the covering groove 114. The jack 6 has first to third contacts 61 to 63, which are connected as shown in the circuit diagram of FIG. The first contact 61 is a fixed contact connected to the third electrode E3. The second contact 62 is a movable contact connected to the fourth electrode E4. The third contact 63 is a fixed contact connected to the collector of transistor Q2°. Note that the capacitor C' and transistor Q2 in the second low frequency treatment device B
° corresponds to the capacitor C and transistor Q2 in the first low frequency treatment device A.

The operation of this embodiment will be explained below.

First, when the plug 7 is not inserted into the jack 6, the movable contact 62 is separated from the fixed contact 61 due to its own spring elasticity and is connected to the fixed contact 63, as shown in FIG. The same circuit as the conventional example is configured. At this time, the third electrode E3 becomes a positive electrode, the fourth electrode E4 becomes a negative electrode, and the low frequency treatment device B is used alone.

Next, when the plug 7 is inserted into the jack 6, the movable contact 62 is separated from the fixed contact 63 and comes into contact with the fixed contact 61, as shown in FIG.
The conductive part 71 of the

As a result, the third and fourth electric IE 3 and E 4 are connected, and the movable contact 62 and the conductive part 7
1 to the coated conductor 4. Therefore, in this case, the second low frequency treatment device B can be used in place of the additional treatment element 5 in the first embodiment. That is, the first and second electrodes El and E2 in the first low frequency treatment device A become positive electrodes, and the third and fourth electrodes E3 . E4 becomes a negative electrode, and the low frequency pulse output from the first low frequency treatment device A is applied between the electrodes.

At this time, the fixed contact 63 of the second low frequency treatment device B is in contact with the insulating portion 71 of the plug 7, so the second low frequency treatment device B does not output a low frequency pulse.
The second low frequency therapy device B operates only as a passive external electrode.

[Effects of the Invention] According to the present invention, in an electrode-integrated low-frequency treatment device in which a low-frequency pulse is applied between the electrodes so that the first and second electrodes have opposite polarities, When the external electrodes are connected, the first and second electrodes have the same polarity and the external electrode has the opposite polarity to the first and second electrodes. The treatment device can also be used as a low-frequency treatment device with separated electrodes, thereby increasing the electrode area and electrode spacing to enhance the treatment effect.

[Brief explanation of the drawing]

Fig. 1 is a front view of one embodiment of the present invention, Fig. 2 is a schematic configuration diagram of a jack and plug used in the same, Fig. 3 is a circuit diagram of the same, and Fig. 4 is a diagram of another embodiment of the present invention. Front view, Figure 5 is a schematic configuration diagram of the jack and plug used in the above, Figure 6 is a schematic diagram of the jack and plug used in the above.
The figure is the same circuit diagram as above. FIG. 7(a) is a front view of the conventional example, FIG. 7(b) is a bottom view of the same, and FIG. 8 is a circuit diagram of the same. A and B are low frequency treatment devices, El is the first electrode, and E2 is the second electrode.
, E3 is the third electrode, 1 is the housing, 2 is the jack, 3 is the plug, 4 is the covered conductor, and 5 is the expansion treatment element.

Claims (1)

[Claims] (1) A low-frequency treatment device that includes first and second electrodes on the same surface of the casing and includes means for applying a low-frequency pulse between the electrodes so that the first and second electrodes have opposite polarities. In,
Equipped with a connection part for connecting an external electrode via a conductive wire,
When the external electrode is connected to the connection part, the first and second
1. A low-frequency treatment device characterized by comprising a polarity switching means that makes the electrodes have the same polarity and makes the external electrode have the opposite polarity to the first and second electrodes.