JPH04200568A - Low-frequency treating device - Google Patents

Abstract

PURPOSE:To obtain the low-frequency treating device which display treating operations with simple constitution by providing a magnetic field detecting section which detects a change in the magnetic field generated from a boosting coil, a judgment circuit which corresponds the detected change in the magnetic field detected by the magnetic detecting section to a treating state, and a monitor having a display circuit for displaying the result of judgment separately from the treating device. CONSTITUTION:The coil L' for monitoring magnetic fields of the monitor 3 for detecting treating operations, provided separately from the treating device body 2, functions as the magnetic field detecting section which detects the change in the magnetic field generated from the boosting coil L in the boosting circuit 22 of the treating device body 2. The magnetic field detection signal detected by the coil L' for monitoring magnetic fields is amplified by an amplifier circuit 31 and is discriminated to treatment modes, such as rubbing and tapping, by a discrimination circuit 32. The discriminated treatment mode is announced by sounds and display to the outside by a display circuit 33. Then the treating operations are displayed with the simple constitution in a place apart from the treating device body.

Description

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

[Conventional technology]

Conventionally, low-frequency therapy devices have been widely used, which apply 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. It is used.

A schematic configuration diagram of such a low frequency treatment device is shown in FIG.

The data input from the controller 1 is input to the control circuit 21 to turn on/off the treatment, treatment mode (kneading,
The treatment pattern is determined by the strength of the treatment, the speed of treatment, etc. The control circuit 21 causes the boost circuit 22 to boost the voltage until it reaches a constant voltage according to the treatment pattern, and when the voltage reaches a - constant voltage, the low frequency pulse generating circuit 23 is activated by a control signal from the control circuit 21. The transistor Q2 is turned on, causing the electrodes A and B to discharge. Electrodes A and B are attached to the skin surface of the human body,
Electrode A is connected to a booster circuit 22, and electrode B is connected to a low frequency pulse generation circuit 23. In the low frequency pulse generation circuit 23, the transistor Q2 is controlled to be turned on or off by a control signal from the control circuit 21. Treatment is performed by applying pulsed currents through electrodes A and B or by electrically stimulating nerves and muscles. A power supply circuit 24 supplies power to the control circuit 21 and the booster circuit 22. The control circuit 21, booster circuit 22, low frequency pulse generation circuit 23, power supply circuit 24, and electrodes A and B constitute the main body of the low frequency treatment device.

Here, the booster circuit 22 has a coil and a transistor Q1.
, a diode D and a capacitor C, and the transistor Q is controlled at high frequency by a control circuit 21.

When the transistor Q1 is turned on, current flows from the power supply circuit 24 to the coil through the transistor Q, and electromagnetic energy is accumulated in the coil L. Next, when the transistor Q1 is turned off, an electromotive force is generated in a direction to continue flowing current through the coil, and this electromotive force is superimposed on the voltage of the power supply circuit 24 to generate a high voltage. This high voltage charges the capacitor C via the diode D.

[Invention or problem to be solved]

However, in the above-mentioned low frequency treatment device, the operation display is
For example, if the controller 1 is provided separately from the treatment device main body 2, a means for notifying the operating state from the treatment device main body 2 to the controller 1 will be required. Furthermore, due to problems such as miniaturization of the treatment device main body 2, it has been desired that the means for notifying the operating state be simple.

The present invention has been made in view of the above points, and its purpose is to provide a low-frequency treatment device that is capable of displaying treatment operations with a simple configuration, separate from the treatment device itself. Our goal is to provide the following.

[Means to solve the problem]

The present invention includes a control circuit that outputs a control signal corresponding to a treatment pattern, a booster circuit that includes a booster coil that generates a high voltage pulse in response to the control signal, and a voltage booster that boosts the voltage by the booster circuit in response to the control signal. A low-frequency treatment device whose treatment device body is constituted by a pair of electrodes applied to a human body includes a magnetic field detection section that detects changes in the magnetic field generated from the booster coil, and a magnetic field detection section that detects changes in the magnetic field detected by the magnetic field detection section. The present invention is characterized in that a monitor is provided separately from the treatment device, and includes a determination circuit that correlates the treatment status with a display circuit that displays the determination result.

[Effect]

The low-frequency treatment device of the present invention attempts to display the treatment operation by detecting changes in the magnetic field generated in response to changes in the current flowing through the booster coil within the treatment device main body. Yes, the magnetic field detection section in the monitor installed separately from the treatment device body detects the magnetic field corresponding to the treatment operation generated from the boost coil in the boost circuit of the treatment device body, and the detected magnetic field is used for treatment using the discrimination circuit. The treatment operation is displayed on a display circuit in association with the action.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings. 1st
The figure is a block diagram showing one embodiment of the present invention. Since the parts related to the basic operation of this embodiment are the same as those of the conventional example shown in FIG. 5, the same parts are given the same numbers and the explanation will be omitted.

3 is a treatment operation detection monitor provided separately from the treatment device main body 2, which includes a magnetic field monitor coil L', an amplifier circuit 31,
It has a discrimination circuit 32 and a display circuit 33. The magnetic field monitoring coil L' functions as a magnetic field detection section that detects changes in the magnetic field generated from the boost coil L in the boost circuit 22 of the treatment device main body 2. Coil L for magnetic field monitor
The magnetic field detection signal detected at ' is amplified by an amplifier circuit 31, and discriminated by a discrimination circuit 32 into a treatment mode such as massaging or patting. The determined treatment mode is displayed on the display circuit 33.
This is notified to the outside by sound or display.

Here, the determination of the treatment mode is as shown in Figure 2.
Depending on each treatment mode, there are differences in the number and interval of current pulses flowing through the booster coil of the treatment device main body 2, and the generated magnetic field changes according to the current pulses. Detection may be performed using a counter or the like.

Note that it goes without saying that the monitor 3 may be installed within the controller 1.

In FIG. 3, a magnetic field generating coil L2 is provided in parallel with the boosting coil L1 of the treatment device main body 2. Usually, a chip coil is used as the boost coil L1 in the boost circuit 22 of the treatment device main body 2. Since this chip coil is small in size and weak as a magnetic field generation source, a separate magnetic field generation coil L2 is provided for magnetic field generation. In this case, it is necessary to make the combined inductance of the coils L, . . . L2 equal to the inductance of the coil L in FIG. 5.

In FIG. 4, a booster coil L4 is provided in parallel with and perpendicularly to the booster coil L3 of the treatment device main body 2. This is intended to improve the directivity by arranging the boost coil L3 and the boost coil L4 orthogonally, that is, to achieve polarization diversity. In addition, in this embodiment as well, as in the case of the previous embodiment, the coil L3
．． It is necessary to make the combined inductance of L, equal to the inductance of coil L in FIG.

〔Effect of the invention〕

As described above, according to the low frequency treatment device of the present invention, the magnetic field corresponding to the treatment operation generated from the booster coil in the booster circuit of the treatment device main body is detected in the magnetic field detection section in the monitor provided separately from the treatment device main body. The detection circuit associates the detected magnetic field with the treatment operation, and the display circuit displays the treatment operation.
We were able to provide a low-frequency treatment device that has a simple configuration and can display treatment operations.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention, FIG. 2 is a waveform diagram for explaining the operation of the same as above, and FIG. 3 is a circuit diagram showing another embodiment of the present invention. FIG. 4 is a circuit diagram showing still another embodiment of the present invention, and FIG. 5 is a schematic configuration diagram showing a conventional example. 1 Controller 2 Control circuit 3 Monitor 21 - Sub-surface circuit 22 - Boost circuit 23 - Low frequency pulse generation circuit 24 Power supply circuit L - Boost coil upper 1 - Magnetic field monitor coil Patent applicant Matsushita Electric Works Co., Ltd. agent Patent attorney Kazu Sahara Show (1 other person) 1st r
Boiled 73f-Tanol 1' Luz (! Fig. 3 21 units S rock body Fig. 4 Fig. 5

Claims (1)

[Claims] (1) A control circuit that outputs a control signal corresponding to a treatment pattern, a booster circuit that has a booster coil that generates high voltage pulses based on the control signal, and a voltage boosted by the booster circuit that applies the voltage to the human body according to the control signal. A low-frequency treatment device whose main body is configured by a pair of electrodes applied to the booster coil includes a magnetic field detection section that detects changes in the magnetic field generated from the boost coil, and a treatment device that detects changes in the magnetic field detected by the magnetic field detection section. A low-frequency treatment device, characterized in that a monitor having a determination circuit that associates with a state and a display circuit that displays the determination result is provided separately from the treatment device.