JP2003024456A - Potential therapy unit and drive output method for potential therapy unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a potential treatment suitable to each region of a human body and a different in physical size so that the treatment effect by potential therapy unit can be efficiently and sufficiently provided in each region regardless of the difference in physical size by independently controlling DC voltage, AC voltage and frequency, and regularly constantly applying a treatment current even in the change of the load applied to the human body. SOLUTION: A drive output obtained by independently controlling, on the basis of an instruction from an operation device for optionally setting the AC voltage and frequency, DC voltage and voltage application time to an electrode, the AC voltage and frequency and DC voltage by a microcomputer is supplied to this potential therapy unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a potential treatment device for applying a high voltage to a human body for treatment and a drive output method of the potential treatment device.

[0002]

2. Description of the Related Art A conventional electric potential treatment device is an AC voltage boosted by a step-up transformer and a DC voltage obtained by directly rectifying the AC voltage.
For example, a negative voltage is combined and used as an output. At this time, it was not possible to individually adjust the DC voltage and the frequency multiplied by the DC voltage. Furthermore, a high-frequency potential therapy device of 7 kHz to 30 kHz is used depending on the distance between the current carrying cloth to which the output voltage is applied and the ground potential, or the size or size of the person to be treated, that is, the load connected to the output terminal. The output voltage rises or falls extremely. For this reason, it was recognized that the therapeutic effect of the electric potential therapeutic device could not be efficiently and sufficiently obtained at each site.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object thereof is to independently control a DC voltage, an AC voltage and a frequency,
In addition, even if the load on the human body changes, a constant treatment current can be applied to perform potential treatment that is suitable for each part of the human body and the difference in body size. It is another object of the present invention to provide an electric potential treatment device and a drive output method of the electric potential treatment device that can be efficiently and sufficiently obtained in each region.

[0004]

A potential treatment device according to claim 1 has one or two electrodes; an operation for arbitrarily setting an AC voltage and a frequency, a DC voltage, and a voltage application time to the electrodes. A device; a control device by a microcomputer for independently controlling an AC voltage and a frequency, and a DC voltage based on a command from the operating device; and a frequency of the AC frequency modulated based on a command from the control device. AC frequency modulating means for causing the direct current voltage generating means for generating a direct current voltage from the alternating current, and a direct current voltage for varying the direct current voltage generated by the direct current voltage generating means based on a command from the control device. A drive output circuit including a voltage varying unit.

The electric potential treatment device according to claim 2 is one or two.
One electrode; an operating device for arbitrarily setting the AC voltage and frequency, the DC voltage, and the voltage application time to the electrode; and the AC voltage, the frequency, and the DC voltage are independently controlled based on a command from the operating device. A control device by a microcomputer for, an AC frequency modulating means for modulating the AC frequency based on a command from the control device, a DC voltage generating means for generating a DC voltage from an AC, DC voltage varying means for varying the DC voltage generated by the DC voltage generating means based on a command from the control device, and current detection for detecting the current flowing through the human body of the patient having different loads during treatment. Means to compare the measured current value with the set current value, and when the measured current value deviates from the set current value, AC voltage and high frequency, DC Comprises; pressure, and a drive output circuit and a correcting circuit for to maintain the current flowing in said human body by controlling the voltage application time to the set current value.

In the electric potential treatment device according to a third aspect of the present invention, the AC frequency modulating means is composed of an inverter circuit for inverter-controlling the frequency modulation of the AC voltage based on a command from the control device. And

According to a fourth aspect of the present invention, in the electric potential therapeutic device, the direct-current voltage generating means generates a negative direct-current voltage.

In the electric potential treatment device according to a fifth aspect of the present invention, the direct-current voltage varying means comprises an optical MOS transistor as a relay.

According to a sixth aspect of the electric potential treatment apparatus, the booster circuit is composed of a circuit in which capacitors and diodes are connected in multiple stages.

An electric potential treatment device according to a seventh aspect is characterized by further including a step-up transformer for stepping up the AC voltage.

In the electric potential treatment device according to an eighth aspect of the present invention, the step-up transformer is composed of a transformer having a high secondary seeding wire resistance.

According to a ninth aspect of the present invention, there is provided a drive output method for an electric potential therapeutic device, wherein a step of generating a DC voltage of a negative potential; a step of generating an AC voltage and a frequency; Controlled to output only one of a DC potential only, an AC potential only, and a frequency obtained by multiplying the DC potential by multiplication.

According to a tenth aspect of the present invention, there is provided a drive output method for an electric potential therapeutic device, wherein a step of generating a direct-current voltage of negative potential; a step of generating an alternating-current voltage and a high frequency; the direct-current voltage, the alternating-current voltage, and the frequency are independent of each other. And controlling to output a DC potential, an AC potential, and a frequency obtained by multiplying the DC potential by multiplication; a current value and a current measured by detecting a current flowing through a human body of a patient having a different load during treatment. By comparing with the set value, when the measured current value deviates from the current set value, the AC current and frequency, the DC voltage, and the voltage application time are controlled to maintain the current flowing through the human body at the set current value. And a step of:

The drive output method of the electric potential therapeutic device according to claim 11 is characterized by further comprising a step of boosting the negative voltage.

According to a twelfth aspect of the present invention, there is provided a drive output method for a potential treatment device, further comprising a step of boosting the AC voltage.

According to a thirteenth aspect of the present invention, there is provided a drive output method for an electric potential therapeutic device, further comprising a step of preventing abnormal increase and / or abnormal decrease in the voltage and frequency by program control.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the electric potential treatment device of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic view showing a futon type electric potential therapy device. In the figure, reference numeral 10
Is a futon, and the futon 10 includes an electrode 12 for generating a high potential of the treatment device and a heater 14 for a heating unit. The electrodes are arranged above the center of the futon. on the other hand,
The heater is arranged below the central portion of the futon. In addition,
The futon may further include a vibrating mechanism. An operating device 16 is installed near the bedside of the futon as shown in FIG. The operation device includes an operation unit including an operation button group 18 for arbitrarily setting an AC potential and a frequency to the electrode, a DC potential, and a voltage application time, and a display unit 20 for displaying operation conditions. The electrode may be a single electrode. Further, the electric potential treatment device may be a chair type.

FIG. 2 is a block diagram of a drive output circuit of the futon type electric potential therapy device. The drive output circuit 22 includes an AC output circuit section 24 and a DC output circuit section 26. The AC output circuit section 24 includes an AC power supply circuit 28, a frequency modulation means 30 for modulating the AC frequency, and an AC potential boosting means 32 for boosting the AC potential. The DC output circuit unit 26 includes a DC potential generating circuit 34 for generating a DC potential from the AC power supply circuit 28, a DC potential boosting circuit 36 for boosting the DC potential, and a DC voltage for varying the DC potential. And a variable circuit 38. Here, the DC potential variable circuit 38 controls the DC potential to a negative potential.

The frequency modulating means 30 and the DC potential varying means 34 are independently controlled by the control circuit 40.
Controlled by. The control circuit 40 is controlled by a microcomputer based on the information of the operating device. That is, the control circuit controls the DC potential, the AC potential, and the frequency independently to output any one of the DC potential, the AC potential, and the frequency obtained by multiplying the DC potential. You can Figure 3
An example of an output waveform output from the drive output circuit will be shown. The output waveform is obtained by multiplying the negative voltage of DC by the AC frequency. Then, the output from the drive output circuit is input to the electrode 12 of the potential treatment device shown in FIG.

FIG. 4 is a block diagram showing the frequency modulating means 30. The means comprises an inverter circuit. The inverter circuit controls the AC voltage and frequency based on the information from the control circuit. The inverter circuit can change the frequency by connecting two bipolar transistors TR1 and TR2 in parallel and providing a capacitor C11 between these transistors to change the capacitor. Further, a digital / analog converter may be provided instead of the circuit. In this case, the frequency and potential of the output are automatically controlled by converting the digital signal into the analog signal by the microcomputer.

FIG. 5 is a block diagram showing the AC potential boosting means 32. Here, the AC potential boosting means 32 is composed of a boosting transformer configured to increase the secondary winding resistance. In this way, by boosting the AC potential with the transformer having a high secondary winding resistance, the voltage level can be prevented from lowering even if the electrode of the potential treatment device is installed near the ground potential. FIG. 6 is a configuration diagram of the DC potential boosting circuit 36 for boosting the DC potential. The booster circuit is composed of a circuit in which capacitors and diodes are connected in multiple stages. Figure 7
FIG. 9 is a configuration diagram of a DC potential variable circuit 38 for varying a DC potential. The DC potential variable circuit is composed of an optical MOS transistor as a relay. Thus, when changing the potential, it is possible to eliminate the relay contact sound generated when changing the potential.

The drive output method of the electric potential treatment device will be described below. The AC potential and frequency, the DC potential, and the voltage application time to the electrodes are arbitrarily set by the operating device. Based on the setting, a negative direct current potential, an alternating current potential, and a frequency are generated, and the direct current potential, the alternating current potential, and the frequency are independently controlled, respectively. One of the frequencies to be multiplied
One can be output.

FIG. 8 is a block diagram of another drive output circuit of the futon type electric potential therapy device. The drive output circuit of the futon type electric potential therapy device is configured by providing the drive output circuit of FIG. 2 described above with a current detector 50 for detecting a small amount of current flowing through the human body of the patient. The figure is a block diagram showing a main part of the drive output circuit. In the figure, the same components as those in FIG. In the drive output circuit of the electric potential treatment device, an AC electric potential and frequency, a DC electric potential, and a voltage application time are set in advance by the operating device. Thus, a predetermined value of output current is applied to the human body during treatment.

Here, when the applied potential during treatment is constant,
The current flowing through the human body becomes indefinite depending on the load of the human body, that is, the magnitude of the load due to the difference in height and weight of the human body. The output circuit was constructed so that the treatment current remained constant even when the load changed. That is, a small amount of current flowing through the human body is detected by a current detector, compared with a predetermined current setting value, and the current value measured by detecting the current flowing through the human body is compared with the current setting value. When the measured current value deviates from the set current value, the control device is controlled so that the set current value is reached by controlling the AC voltage and frequency, the DC voltage, and the voltage application time. That is, the control device 40 and the frequency modulation means 30
A feedback circuit 52 that connects the current detector 50 with the current detector 50, monitors the output current with the current detector, compares the flowing current value with the set value, determines the control amount, and determines the voltage of the output voltage and The frequency is automatically changed and control is performed so that the current detection amount becomes equal to the set value. At this time, an upper limit value and a lower limit value of the control amount may be provided to control by providing a program that prevents the applied voltage and the frequency from abnormally increasing or decreasing.

Thus, conventionally, an electric current has flowed indefinitely (treatment ineffective current) even in a condition where the human body is not placed in the treatment device under the installation conditions and environment of the electrodes for applying the output voltage. Therefore, in the case of a conventional electric potential treatment device with a safety circuit, it is not possible to determine whether the effective current at the time of treatment or the treatment reactive current caused by the installation conditions, so the current actually flowing through the human body is the value specified by the safety circuit. The safety circuit works even if it is below the limit. In the present embodiment, a configuration is adopted in which the treatment reactive current value generated under the installation conditions is offset and only the treatment effective current flowing in the human body can be detected. The offset value of the treatment reactive current value is
By storing it in a non-volatile memory built in the microcomputer, it is maintained even when the treatment device is powered off.

The drive output method of the electric potential treatment device will be described below. A frequency obtained by generating a DC potential of negative potential, an AC potential and a frequency and independently controlling the DC potential, the AC potential and the frequency, respectively, and multiplying the DC potential only, the AC potential only and the DC potential by multiplication. Any one of the above can be output, and the current value measured by comparing the current value measured by detecting the current flowing through the human body of the patient having a different load during the treatment with the current setting value, and the measured current value When the current value deviates from the current setting value, the alternating current potential and frequency, the direct current potential, and the voltage application time can be controlled to keep the current setting value at all times.

[0027]

According to the potential treatment device and the drive output method of the potential treatment device according to the present invention, the DC voltage, the AC voltage, and the frequency are independently controlled, and the treatment current is constantly applied even when the load on the human body changes. By making the flow constant, it is possible to perform electric potential treatment adapted to each part of the human body and the difference in body size, so that the therapeutic effect of the electric potential treatment device can be efficiently and sufficiently obtained in each part regardless of the difference in body size.

[Brief description of drawings]

FIG. 1 is a schematic view showing a futon type electric potential therapy device.

FIG. 2 is a block diagram showing a drive output circuit of the futon type electric potential therapy apparatus according to the present invention.

FIG. 3 is a waveform diagram showing an output waveform output from the drive output circuit.

FIG. 4 is a configuration diagram showing frequency modulation means.

FIG. 5 is a configuration diagram showing an AC potential boosting means.

FIG. 6 is a configuration diagram showing a DC voltage boosting circuit.

FIG. 7 is a configuration diagram showing a DC voltage variable circuit.

FIG. 8 is a block diagram showing another drive output circuit of the futon type electric potential therapy device.

[Explanation of symbols]

10: Futon 12; Main electrode 14; heating section 16; Operating device 22; Drive output device 12; electrode 24; AC output circuit section 26; DC output circuit section 30; Frequency modulation means 32; AC potential boosting means 34; DC potential generation circuit 36; DC potential booster circuit 38; DC potential variable circuit 40; Control device 50; Current detector 52; Feedback circuit

Claims (13)

[Claims] 1. One or two electrodes; an operating device for arbitrarily setting an AC voltage and frequency to the electrodes, a DC voltage, and a voltage application time; an AC voltage based on a command from the operating device; A control device by a microcomputer for independently controlling the frequency and the DC voltage, an AC frequency modulation means for modulating the AC frequency based on a command from the control device, and a DC voltage from the AC. A drive output circuit including a direct current voltage generating means for generating the direct current voltage, and a direct current voltage varying means for varying the direct current voltage generated by the direct current voltage generating means based on a command from the controller. Therapeutic device. 2. One or two electrodes; an operating device for arbitrarily setting an AC voltage and frequency to the electrodes, a DC voltage, and a voltage application time; an AC voltage and a frequency based on a command from the operating device; A control device by a microcomputer for controlling the DC voltage independently, an AC frequency modulation means for modulating the AC frequency based on a command from the control device, and a DC voltage generated from the AC DC voltage generating means, a DC voltage varying means for varying the DC voltage generated by the DC voltage generating means based on a command from the control device, and a human body of a patient to be treated with different loads during treatment. When the measured current value deviates from the set current value by comparing the measured current value and the set current value with the current detection means for detecting the flowing current, the alternating current A drive output circuit including a correction circuit for controlling a voltage, a high frequency, a DC voltage, and a voltage application time to maintain a current flowing through the human body at the set current value;
A potential treatment device. 3. The AC frequency modulation means comprises an inverter circuit for inverter-controlling the AC voltage of the AC voltage based on a command from the control device. Potential therapy device. 4. The electric potential treatment device according to claim 1, wherein the DC voltage generating means generates a DC voltage having a negative potential. 5. The electric potential therapy device according to claim 1, wherein the DC voltage varying means is composed of an optical MOS transistor as a relay. 6. The electric potential therapeutic device according to claim 1, wherein the booster circuit is composed of a circuit in which capacitors and diodes are connected in multiple stages. 7. The electric potential treatment device according to claim 1, further comprising a step-up transformer that steps up the AC voltage. 8. The electric potential treatment device according to claim 7, wherein the step-up transformer is configured by a transformer having a high secondary seeding wire resistance. 9. A step of generating a DC voltage of a negative potential; a step of generating an AC voltage and a frequency; a DC voltage, an AC voltage and a frequency are independently controlled to control only a DC potential and only an AC potential. Outputting any one of frequencies multiplied by a direct current potential; 10. A step of generating a negative potential DC voltage;
Generating an alternating voltage and a high frequency; independently controlling the direct current voltage, the alternating voltage and the frequency to output a direct current potential, an alternating potential and a frequency obtained by multiplying the direct current potential; When the measured current value deviates from the current setting value by comparing the measured current value with the current setting value by detecting the current flowing through the human body of the patients with different loads, AC voltage and frequency, DC Controlling the voltage and the voltage application time so as to always maintain the current flowing through the human body at the set current value. 11. The drive output method of the electric potential therapeutic device according to claim 9, further comprising a step of boosting the negative voltage. 12. The drive output method for a potential therapy device according to claim 9, further comprising a step of boosting the AC voltage. 13. The drive output method of the electric potential therapy device according to claim 10, further comprising the step of program-controlling to prevent the abnormal increase and / or the abnormal decrease of the voltage and frequency.