JP2800410B2 - Low frequency treatment device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a low-frequency therapeutic device for applying electrical stimulation to the human body with low-frequency high-voltage pulses.

[Conventional technology]

2. Description of the Related Art Conventionally, a low-frequency therapeutic device has been widely used in which a pair of electrodes are brought into contact with the surface of a human body, and a low-frequency high-voltage pulse is applied between the electrodes to apply electrical stimulation to the human body to obtain a therapeutic effect. Used.

FIG. 4 shows a schematic configuration diagram of such a low frequency treatment device. The control circuit 1 sets a constant voltage by the step-up coil L of the treatment circuit 2 according to treatment patterns such as treatment on / off, treatment modes (rubbing, tapping, vibration, etc.), treatment intensity, treatment speed, and the like. When the voltage reaches a certain level, the electrodes A and B are discharged by a control signal from the control circuit 1. Electrode A, the B is mounted to the human skin surface, the electrode A is connected to the booster coil L, electrode B is connected to the transistor Q _2.

Here, the treatment circuit 2 includes a step-up coil L, a transistor
It comprises Q ₁ , diode D, capacitor C, transistor Q ₂ , and electrodes A and B. The transistor Q ₁ is controlled by the control circuit 1 at a high frequency. When the transistor Q ₁ is turned on, the booster coil L from the power source 3, the current through the transistor Q ₁ flows, electromagnetic energy is accumulated in the boost coil L. Then, the transistor Q ₁ is once turned off, electromotive force is generated in the direction to keep supplying a current to the booster coil L, a high voltage is generated by superimposing the electromotive force to the voltage of the power source 3. This high voltage charges the capacitor C via the diode D. Then, the transistor Q ₂ are turned on by the control circuit 1 at low frequencies, it is turned off. When transistor Q ₂ is turned on, the high voltage charged in the capacitor C is applied between the electrodes A, B. When transistor Q ₂ is turned off, the electrodes A, a high voltage is not applied between the B. Therefore, a low-frequency high-voltage pulse is applied between the electrodes A and B, and when the electrodes A and B are brought into contact with the skin surface of the affected part such as the shoulder or the waist of the human body, a current flows through the human body. Thus, a therapeutic effect by electrical stimulation can be obtained.

[Problems to be solved by the invention]

However, when a plurality of the low-frequency treatment devices are used, if the treatment devices are remotely controlled by a controller, there is a problem that a deviation in the treatment operation timing occurs between the treatment devices.

The present invention has been made in view of the above points, and an object of the present invention is to provide a low-frequency treatment apparatus capable of adjusting a treatment operation timing between treatment apparatuses when a plurality of treatment apparatuses are used at the same time. To provide equipment.

[Means for solving the problem]

The low-frequency treatment device of the present invention has a control circuit that outputs a control signal corresponding to a treatment pattern, and a booster coil that generates a high-voltage pulse according to the control signal, and outputs a voltage boosted by the booster coil to a human body. A therapeutic circuit attached to a human body by a pair of electrodes in response to the control signal, a magnetic field monitoring unit for detecting a change in a magnetic field generated from the booster coil, The timing of the treatment operation is adjusted according to the detection signal detected by the monitor unit.

[Action]

In the low-frequency treatment device of the present invention, when a plurality of low-frequency treatment devices are used at the same time, the magnetic field monitoring unit including the magnetic field monitoring coil provided in the treatment device allows the reference treatment to be performed among other treatment devices. A therapeutic operation of one therapeutic device, that is, a change in a magnetic field generated in response to a change in current flowing through the booster coil is detected, and the control circuit adjusts the timing of the therapeutic operation of the reference therapeutic device. It is.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG.
The figure shows a circuit diagram according to the above. The parts related to the basic operation of this embodiment are the same as those of the conventional example shown in FIG.
The same parts are denoted by the same reference numerals and description thereof is omitted.

In the present embodiment, a case is shown in which two low frequency treatment devices K ₁ and K ₂ are used simultaneously. Therapy device K ₂ is the therapeutic instrument serving as a reference, the step-up coil L in the therapy circuit 2 is the magnetic field in conjunction occurs treatment operation timing. That is, the magnetic field changes according to the change in the current flowing through the booster coil L according to the treatment mode.

The treatment device K _1, is provided with a magnetic field monitor unit 4 having a coil L 'magnetic field monitor. The field monitor unit 4, the coil L 'magnetic field monitor detects a change in magnetic field generated from the treatment device K _2, and sends a detection signal to the control circuit 1. In the control circuit 1, and the magnetic field change in the therapeutic device K ₂ detected by the detection signal, therapy apparatus K ₁ that is compared with the high frequency pulse indicating the self-treatment operation, by adjusting the timing of its therapeutic action it is the combined with the therapeutic action therapeutic device K _2.
That is, for example, as shown in FIG. 2, the treatment instrument waveform are second diagrams showing a treatment operation of K ₁ in (a), waveform a second view showing a treatment operation treatment device K ₂ (b) When now the, the treatment device K _1, notice that the occurred deviation of only the timing t than the therapeutic action therapeutic device K ₂ as a reference, the timing of the treatment operation treatment device K ₁ t only By controlling so as to be delayed, the timing of both is adjusted. The timing of the treatment operation in the control circuit 1 may be adjusted using a pulse counter or the like.

In the above embodiment, two low-frequency treatment devices are used. However, in the case of three or more treatment devices, the booster coil L in the treatment circuit 2 is a small chip except for the reference treatment device. What is necessary is just to make it difficult to generate a magnetic field by using a coil or the like.

〔The invention's effect〕

As described above, according to the low-frequency therapeutic device of the present invention, when a plurality of low-frequency therapeutic devices are used at the same time, the magnetic field monitoring unit including the magnetic field monitoring coil provided in the therapeutic device allows the other therapeutic devices to be used. The control circuit detects a therapy operation of one reference therapy device, that is, a change in a magnetic field generated in response to a change in current flowing through the booster coil, and adjusts the timing of the therapy operation of the reference therapy device in the control circuit. Therefore, when a plurality of treatment devices are used at the same time, a low-frequency treatment device capable of adjusting the treatment operation timing between the treatment devices can be provided.

[Brief description of the drawings]

 FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a waveform diagram for explaining the operation of the above, FIG. 3 is a circuit diagram of the same, and FIG. It is a circuit diagram. DESCRIPTION OF SYMBOLS 1 ... Control circuit 2 ... Treatment circuit 3 ... Power supply 4 ... Magnetic field monitoring part L ... Boost coil, L '... Magnetic field monitoring coil

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kata Satoru, Kazuma, Kazuma, Osaka 1048, Oaza Kadoma Matsushita Electric Works, Ltd. (56) References JP-A-3-277383 (JP, A) JP-A-3-3 247351 (JP, A) JP-A-3-75067 (JP, A) JP-A-3-277384 (JP, A) JP-A-4-54974 (JP, A) JP-A-3-159657 (JP, A) (58) Field surveyed (Int.Cl. ⁶ , DB name) A61N 1/32

Claims (1)

(57) [Claims] 1. A control circuit for outputting a control signal corresponding to a treatment pattern, and a booster coil for generating a high-voltage pulse according to the control signal, wherein a voltage boosted by the booster coil is mounted on a human body and A low-frequency therapeutic device including a therapeutic circuit for applying to a human body with a pair of electrodes in response to a control signal, a magnetic field monitor for detecting a change in a magnetic field generated from the booster coil is added, and the magnetic field monitor detects the change. A low-frequency treatment device wherein the timing of a treatment operation is adjusted according to the detected signal.