JP7431499B2 - electric potential treatment device - Google Patents

Description

Embodiments of the present invention relate to an electric potential therapy device.

A potential treatment device is a treatment device that applies a therapeutic potential to a living body, which is a treated person. In general, electric potential treatment devices are roughly divided into types that apply an AC output to a treated person as a treatment potential and types that apply a DC output to a treated person.

Some potential therapy devices that output alternating current use a half-wave rectification method to reduce the peak value of the positive potential so that the ratio of the peak value of the positive potential to the peak value of the negative potential in the output waveform is 1:3. There is something to do. (Patent Document 1 and Patent Document 2) In this case, distortion etc. occur in the output waveform, which is said to be undesirable as an output waveform for treatment.

In addition, there is a method in which the ratio of the peak value of the positive potential to the peak value of the negative potential is set to 1:3 by superimposing a DC signal with a negative potential on the AC signal and offsetting it to the negative potential side. (Patent Document 3 and Patent Document 4) Since the technology of Patent Document 3 has a circuit configuration that is offset while maintaining the AC output voltage, when the offset amount is set large, the peak value of the negative potential side of the AC waveform There is concern that the amount will become too high and that it will affect the living body that is being treated. The technology of Patent Document 4 solves the problem of Patent Document 3, and is a method of calculating and controlling the output using a microcomputer that controls AC voltage components and DC voltage components, and the output voltage can vary from 3000V to 9000V. The voltage is not directly applied to the living body, but is applied to the living body through electromagnetic induction and electrostatic induction, so the voltage induced varies depending on the contact situation between the insulating mat of the treatment device and the human body. be. Furthermore, as high-voltage DC voltage for offset is electrostatically induced in the living body, the electrostatically induced voltage in the living body and the clothes it wears is stored as static electricity even after treatment, which may cause the body to become grounded. There is a concern that this could lead to electrical discharge and a shock. On the other hand, as a type of electric potential therapy device that applies DC output to a patient, according to Patent Document 5 filed by the inventor of the present application, a storage battery that is detachable from a power supply device is used to reduce the capacitance of the human body (this application An electric potential treatment device has been proposed that is equipped with a switch that charges the internal capacitor (called an internal capacitor) and turns on/off the output of a storage battery, charging and discharging the capacitance of the human body, but it is effective for electric potential treatment effects. It had some weaknesses in its effectiveness and quick effect.

Patent No. 2609574 Patent No. 4359278 Japanese Unexamined Patent Publication No. 7-303706 Japanese Patent Application Publication No. 2006-130218 JP 2018-114097 Publication

The problem to be solved by the present invention is to provide an electric potential treatment device that can simultaneously provide the therapeutic effects of a direct current potential and an alternating current potential to a person to be treated as a therapeutic potential.

The electric potential treatment device of the present invention includes an AC signal generation circuit that transforms power from a power supply with a transformer and outputs an AC signal, and a DC signal generation circuit that transforms the power with a transformer and rectifies it with a rectifier to output a DC signal. The circuit combines an AC signal output from the AC signal generation circuit and a DC signal output from the DC signal generation circuit, and increases the effective value voltage of the AC signal and the voltage of the DC signal when one voltage is increased. a mixing circuit in which the voltage of the signal is lowered and can be adjusted in conjunction with and in opposition to each other, and an output terminal for applying a therapeutic potential obtained by combining the alternating current signal and the direct current signal to the treated person; , a circuit that can vary the resistance value from 0 to ∞ between the AC signal and the DC signal.

FIG. 2 is a circuit diagram of the electric potential treatment device according to the first embodiment. FIG. 3 is a diagram illustrating potentials at various locations in the circuit. It is a figure explaining the therapeutic potential output from the said circuit. It is a figure explaining the structure of the variable resistor (mixing circuit) of the said circuit. FIG. 2 is a diagram illustrating charging and discharging of electric charges stored in an internal capacitor.

Hereinafter, a potential treatment device according to an embodiment will be described in detail with reference to the accompanying drawings. In addition, in each figure, the same structure is given the same code|symbol.

FIG. 1 is a circuit diagram of a drive circuit 10 included in the potential treatment device according to the embodiment.
The electric potential treatment device generates, for example, an alternating current signal and a direct current signal using the drive circuit 10, generates a therapeutic electric potential by combining the alternating current and direct current signals using a mixing circuit, and directly applies it to the patient P to be treated. The person to be treated P is a living body, mainly a human, but may also be an animal or the like. Direct current potential is said to have therapeutic effects such as improving the antioxidant effect of living organisms, improving immunity, and improving blood flow, for example. Alternating current, for example, is said to be effective against chronic constipation, headaches, insomnia, stiff shoulders, etc. by adjusting the ionic balance of the living body and stimulating the autonomic nervous system.

Electric power that powers the electric potential treatment device is supplied from an AC power source 2 to a drive circuit 10 . As the power, for example, AC power with a voltage of 100 V and a frequency of 50 Hz or 60 Hz is used. The alternating current power is, for example, power from a commercial power source. Alternatively, other alternating current power, such as power generated in-house using natural energy or the like, may be used. The drive circuit 10 that generates a therapeutic potential from the supplied power mainly includes an AC signal generation circuit 3, a DC signal generation circuit 4, a variable resistor R3, a feedback resistor R6, and a connection point where the AC signal and the DC signal join. b, a therapeutic potential output terminal 5, and a changeover switch SW2 for turning ON/OFF the therapeutic potential output.

The AC signal generation circuit 3 transforms (eg, boosts) the power supplied from the AC power supply 2 to generate an AC signal. The DC signal generation circuit 4 transforms (for example, boosts) and rectifies the power supplied from the AC power supply 2 to generate a DC signal. For example, the variable resistor R3 adjusts the voltage of the AC signal output from the AC signal generation circuit 3, and in conjunction with this adjustment, adjusts the voltage of the DC signal output from the DC signal generation circuit 4. At connection point b, the AC signal and DC signal are combined. A feedback resistor R6 connects the ground of the drive circuit 10 to the earth ground 6. The output terminal 5 outputs the therapeutic potential to the patient P. The switch SW2 switches the output of the therapeutic potential between ON and OFF. The specific configuration of each circuit will be described in detail below.

The AC signal generation circuit 3 includes a transformer T1, a resistor R1, a capacitor C1, and a resistor R2. An AC power supply 2 is connected to the primary side of the transformer T1. On the primary side of the transformer T1, the secondary side voltage can be changed in three stages, for example, "high", "medium", and "low", by means of a tap changeover switch SW1. For example, the taps can be switched using a selection key provided on an operation panel (not shown) of the electric potential treatment device. As an example, "high", "medium", and "low" are set so that the DC voltage on the secondary side is 500 V, 250 V, and 125 V, respectively, and the AC voltage has a value that follows the change in the DC voltage. However, the DC voltage is not limited to 500V, 250V, or 125V, and can be changed as long as it is 500V or less. The AC voltage preferably has a peak-to-peak peak value of 1000V or less.

A resistor R1, a capacitor C1, and a resistor R2 are connected in series to the secondary side of the transformer T1. The voltage Ea of the AC signal boosted by the transformer T1 is divided by the combined resistance of the resistor R2 and variable resistor R3 and the resistance of the resistor R1. As will be described in detail later, when the resistance value of the variable resistor R3 is changed, the combined resistance of the variable resistor R3 and the resistor R2 changes, so that the voltage of the AC signal and the voltage of the DC signal are both linked and contradictory. It is adjusted as follows. Here, "adjusted in an interlocking and contradictory manner" means that when one voltage is increased, the other voltage is lowered, and that they are interlocked with each other. Note that the resistor R1 is also a biological protection resistor that prevents the patient P from being directly connected to the transformer T1. Capacitor C1 is a coupling capacitor that cuts DC voltage. The resistors R1 and R2 have resistance values of 1 MΩ and 1 MΩ, for example. The capacitor C1 has a capacitance of 2 μF, for example.

The DC signal generation circuit 4 includes a transformer T2, a diode D1, a resistor R4, and a capacitor C2. The DC voltage generated by the DC signal generation circuit 4 is divided between a variable resistor R3 and a resistor R2. The transformer T2 is a transformer that is integrated with the transformer T1 of the AC signal generation circuit 3, but of course, it may be configured using separate transformers.

A diode D1, a resistor R4, and a capacitor C2 are connected in series to the secondary side of the transformer T2. The diode D1 is a rectifying element that rectifies a boosted AC signal into a DC signal, and is an example of a rectifier. The diode D1 has a cathode connected to one tap of the transformer T2, and rectifies the alternating current signal into a negative potential direct current signal by half-wave rectification. Of course, the circuit is not limited to half-wave rectification, and any rectification circuit that can generate a negative potential DC signal may be used. The capacitor C2 is for smoothing, and the resistor R4 is also for smoothing. The capacitor C2 has a capacitance of 2 μF, for example. For example, a resistor R4 having a resistance value of 10 KΩ is used.

The AC signal generated by the AC signal generation circuit 3 is output from a connection point a between the resistor R2 and the capacitor C1 in the circuit. The DC signal generated by the DC generation circuit 4 is output from the connection point c between the capacitor C2 and the resistor R4 in the circuit. The AC signal and DC signal output from circuits 3 and 4 are combined at connection point b. The alternating current signal and the direct current signal are combined at the connection point b, and a therapeutic potential that is a combination of the alternating current and direct current voltages is generated. Of course, the circuit configuration is not limited to the connection point b, but may be a connection point c or the like that can synthesize an AC signal and a DC signal.

The variable resistor R3 is arranged between a connection point c where the DC signal generation circuit 4 outputs a DC signal and a connection point b where the DC signal is combined into an AC signal. As described above, by changing the resistance value of the variable resistor R3, the voltage of the AC signal and the voltage of the DC signal are adjusted so that they are interlocked and contradictory to each other. For example, the variable resistor R3 uses the variable resistance method shown in Fig. 4(a) whose resistance value is variable within the range from 0 (shorted between b and c in Fig. 1) to ∞ (opened between b and c). . As another example of the configuration of the variable resistor R3, a switch method using a switch SW3 may be used, as shown in FIG. 4(b). That is, any circuit configuration that can vary the resistance value between b and c in FIG. 1 may be used.

Connection points d and e in the drive circuit 10 connect one output terminal on the secondary side of the transformer T1 of the AC signal generation circuit 3 and one output terminal on the secondary side of the transformer T2 in the DC signal generation circuit 4. , for example, through wiring. A feedback resistor R6 serving as a feedback resistor is connected between these connection points d, e and the earth 6. A feedback resistor R6 connects the reference ground of the drive circuit 10 to the earth ground 6. As the feedback resistor R6, for example, a resistor having a resistance value of 200 kΩ to 1 MΩ is used.

Here, the variable resistor R3 and the connection point b in the drive circuit 10 of FIG. 1 constitute a mixing circuit. That is, the combination of variable resistor R3 and connection point b is an example of a mixing circuit. As will be described in detail later, the mixing circuit combines the AC signal and the DC signal, and also links the voltage of the AC signal output from the AC signal generation circuit 3 and the voltage of the DC signal output from the DC signal generation circuit 4. By making the adjustment, the effective value of the combined voltage of the AC signal and the DC signal, that is, the potential applied to the patient P, becomes approximately the same. Furthermore, it is also possible to obtain a DC output that does not include an AC component or an AC output that does not include a DC component.

A switch SW2 as a switch control section is arranged between the connection point b and the therapeutic potential output terminal 5. When the switch SW2 is turned ON/OFF, the state is switched between applying a therapeutic potential to the patient P and not applying the therapeutic potential. The switch SW2 is turned ON/OFF during treatment, for example, at a predetermined timing, for example, continuously for a predetermined period of time. As an example, a multivibrator is used to switch ON/OFF at a predetermined period. Alternatively, a control section including a CPU for controlling the overall operation of the electric potential treatment device may also serve as the switch control section. The ON/OFF switching period of the switch SW2 is, for example, 50 to 120 times/minute.

As another example, the ON/OFF switching of the switch SW2 may be performed based on the biological information of the patient P. As an example, the pulse of the patient P is detected by a sensor, and the switch SW2 is turned ON/OFF in synchronization with the detected pulse. Note that the resistor R5 connected in series to the switch SW2 is a resistor for protecting the living body of the patient P. As the resistor R5, one having a resistance value of 1 MΩ is used, for example.

A therapeutic potential is directly applied to the living body of the person P to be treated, and the output terminal 5 is a connection portion such as a conductive pad that is applied to the living body of the person P to be treated, for example. The patient P receives treatment while lying or sitting on an insulating member 7 such as an insulating mat, for example.

FIG. 2 schematically shows the potential in the drive circuit 10 of FIG. 1 during treatment execution.
That is, the voltage Eb obtained by dividing the AC output voltage Ea by the transformer T1 is Eb=Ea.(R2//R3)/R1+(R2//R3). (However, since R0 is very large and C0 is very small, R0 and C0 are ignored. Also, the symbol // represents a combined resistance connected in parallel.) Division of DC output Va by transformer T2 The resulting voltage Vb is Vb=Va·R2/(R3+R2). (However, R2<R0.) The output potential EV is EV=Eb+Vc. The patient P on the insulating member 7 has a stray capacitance C0 and an insulation resistance R0 between it and the earth. The stray capacitance C0 is, for example, 1000 pF. The insulation resistance R0 is, for example, 50 MΩ.

Next, an example of the flow of potential treatment performed by the potential treatment device will be described. First, as schematically shown in FIG. 1, the patient P is laid down on the insulating member 7 to be in an electrically floating state, and a conductive pad or the like connected to the output terminal 5 is applied to the living body of the patient P. . Then, treatment conditions are set using, for example, an operation panel (not shown) of the electric potential treatment device, and treatment is started. The treatment conditions of the electric potential treatment device include treatment time, selection of "high", "medium", and "low" for tap changeover switch SW1, setting of the mixing position shown in FIG. 3, ON/OFF timing of SW2, etc.

For example, when the patient P is an adult, it is desirable that the tap changeover switch SW1 is set to "middle" and the mixing position is set to C or D. In the case of a child, it is desirable that the tap changeover switch SW1 is set to "low" and the mixing position is set to A. Further, in the case of a debilitated elderly person, it is desirable that the tap changeover switch SW1 is set to "middle" and the mixing position is set to A.

When the treatment is started, in the drive circuit 10 of the electric potential therapy device, the AC signal generation circuit 3 generates an AC signal, and the DC signal generation circuit 4 generates a DC signal. The generated alternating current signal and direct current signal are combined at connection point b to form a therapeutic potential. The therapeutic potential is applied to the living body of the patient P through the output terminal 5.

Here, when the resistance value of the variable resistor R3 is changed, the therapeutic potential changes as schematically shown in FIG. 3. Specifically, as the resistance value of variable resistor R3 increases, the voltage of the DC signal decreases, and in conjunction with this, the voltage of the AC signal increases. Therefore, as shown in FIG. 3, the amount of offset of the AC waveform toward the negative potential side is reduced, and the amplitude of the AC waveform is increased. When adjusted to mixing position D in FIG. 3, the ratio of the peak value of the positive potential to the peak value of the negative potential becomes 1:3, which is said to adjust the ion balance in the living body. Furthermore, when the resistance value of the variable resistor R3 is set to ∞ (infinity), that is, when the mixing position E in FIG. 3 is set, an AC output containing no DC component is obtained.

On the contrary, when the resistance value of variable resistor R3 is decreased, the voltage of the DC signal increases, and in conjunction with this, the voltage of the AC signal decreases. Therefore, as the amount of offset of the AC waveform toward the negative potential side increases as shown in FIG. 3, the peak value of the AC waveform decreases. When adjusted to mixing position A in FIG. 3, the output becomes a DC output that does not include an AC component.

Generally, it is said that the ratio of the peak value of a positive potential to the peak value of a negative potential in an alternating current therapeutic potential is preferably 1:3. Of course, the potential treatment device of this embodiment can also generate the potential at the mixing position D, but in this embodiment, a therapeutic potential that is more negative than the earth potential and does not include a positive potential is generated to treat the target. It is applied to the living body of the therapist P. That is, it is more effective for treatment to generate and apply a therapeutic potential adjusted within the range from mixing position A to mixing position C (range H in FIG. 3).

An example of the configuration of the variable resistor R3 that can adjust the mixing positions A to E is as shown in FIG. That is, as shown in FIG. 4(a), for example, one end D of the variable resistor R3 is configured to be open, and by increasing or decreasing the resistance value of the variable resistor R3, the mixing position range A to E, that is, the G shown in FIG. generates a therapeutic potential (EV) that continuously covers the range of .

While the mixing circuit adjusts the composite ratio of AC potential and DC potential as described above, if you want to change the magnitude of the therapeutic potential depending on the characteristics of the patient P, such as adult, child, gender, etc., use the tap changeover switch. The therapeutic potential can be switched by switching SW1 to "high," "medium," or "low," making it possible to change the magnitude of the therapeutic potential while maintaining the composite ratio of AC potential and DC potential adjusted by variable resistor R3. It is.

The application of the therapeutic potential is turned ON/OFF by switching the switch SW2, but depending on the treatment, the application may be continued without turning the switch SW2 ON/OFF. Here, the flow of current that may occur in the body of the patient P when the switch SW2 is turned ON/OFF will be explained with reference to FIG. 5. Note that FIG. 5 is an explanatory diagram when only DC output is applied at mixing position A, as an example. FIG. 5(a) schematically represents the internal capacitor (C) and internal load in the living body using an electric circuit. When performing treatment, when switch SW2 is turned on and a therapeutic potential is applied, a charging current flows between the potential treatment device and the living body through the path shown in FIG. 5(a), and electric charge is stored in the internal capacitor (C). . Then, when the switch SW2 is turned OFF, the charges stored in the internal capacitor (C) are discharged in the living body as shown in FIG. 5(b). The discharge current shown in Fig. 5(b) flows along the path shown in Fig. 5(a), and by consuming the charge stored in the internal capacitor (C) within the body, it promotes the effectiveness and immediate effect of the therapeutic effect. Connect. Note that a combination of DC output and AC output may be provided by changing the settings of the mixing position. In this case as well, by consuming the electric charge stored in the internal capacitor (C) within the body, it can be expected that the effectiveness and immediate effect of the therapeutic effect will be promoted.

The amount of charge (Q) stored in the internal capacitor (C) is Q=CV when voltage (V) is applied to the internal capacitor (C). The number of electrons (N) emitted from the amount of charge (Q) is 1.6 x ¹⁰¹⁹ , so the number of electrons N is N = C V / 1.6 x 10. ^-19 . For example, if the internal capacitor is 0.1μF and V is 300V, (0.1×10 ^-6 )×300/1.6×10 ^-19 = 187.5 trillion are supplied to the body, and the electrons Therefore, effects such as suppression of active oxygen in the body can be expected.

According to the embodiments described above, the AC signal generation circuit that generates an AC signal, the DC signal generation circuit that generates a DC signal, the voltage of the AC signal output from the AC signal generation circuit, and the DC output from the DC signal generation circuit. Equipped with a mixing circuit that adjusts the voltage of the signal in conjunction with each other, the mixing circuit applies a therapeutic potential that combines AC and DC signals to the patient, so the output potential is stable and effective for treatment. It becomes possible to apply a therapeutic potential to the patient. Furthermore, the influence of stray capacitance and insulation resistance between the living body that is the patient P and the earth can be suppressed. In addition, by being equipped with the above-mentioned mixing circuit, it is possible to select and execute treatment with a combined output of DC and AC, treatment with only DC output, or treatment with only AC output using at least one potential treatment device. It is. Furthermore, the mixing circuit is realized with a simple circuit configuration, and the mixing position can be switched simply by adjusting the resistance value of the variable resistor R3.

In addition, in the configuration of the drive circuit 10 described above, when the primary side supply voltage is switched with the tap changeover switch SW1, the treatment can be performed while maintaining the composite ratio of the AC potential and the DC potential adjusted by the variable resistor R3. It is possible to change the magnitude of the applied potential. By turning the switch SW2 ON/OFF, it is possible to promote consumption of the amount of charge stored in the internal capacitor within the body. The mixing circuit can provide a DC output that does not include an AC component or an AC output that does not include a DC component. In addition, the configuration of the drive circuit 10 has the following advantages. That is, since the AC waveform is not half-wave rectified, waveform distortion can be suppressed. Even if the frequency of the power source is different, such as 50 Hz or 60 Hz, there is no capacitive impedance in the circuit, or if there is, it is small, so it is not affected by the installation environment of the patient P (load of the drive circuit 10). , output fluctuations can be suppressed.

The embodiments of the invention are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

[0038]
10 Drive circuit 2 AC power supply 3 AC signal generation circuit 4 DC signal generation circuit 5 Output terminal for therapeutic potential 6 Earth ground 7 Insulating member T1 for separating the treated person from earth earth Transformer T2 of AC signal generation circuit DC Transformer D1 of the signal generation circuit Rectifier diode R3 Variable resistors R1, R2, R4, R5, R6 Resistor R0 Insulation resistance between the ground and the patient C1, C2 Capacitor C0 Between the ground and the patient Stray capacitance SW1 between T1 and T2 Tap changeover switch SW2 that changes the secondary output voltage of T1 Changeover switch SW3 that turns ON/OFF the therapeutic potential output Switch P that changes the mixing position shown in FIG. 4(b) Treated person a R2 Connection point b between and C1 Connection point c where the AC signal and DC signal join Connection point d between C2 and R4 Earth connection point e of the secondary output winding of T1 Earth connection point f of the secondary output winding of T2 T1 and Earth connection point g of the primary winding that constitutes the transformer of T2 Earth connection point Ea of R6 AC output voltage Eb of T1 Divided output voltage Va of Ea DC output voltage Vb of T2 AC voltage Eb and DC voltage - EV Combined output voltage
- EV therapeutic DC voltage applied to the patient
A, B, C, D, E mixing position

Claims (1)

an AC signal generation circuit that transforms power from a power source with a transformer and outputs an AC signal; a DC signal generation circuit that transforms the power with a transformer and rectifies it with a rectifier to output a DC signal; and the AC signal generation circuit. The AC signal output from the AC signal and the DC signal output from the DC signal generation circuit are combined, and the effective value voltage of the AC signal and the voltage of the DC signal are such that when one voltage increases, the other voltage decreases. a mixing circuit that can be adjusted to be interlocked with and contradictory to the above, and an output terminal that applies a therapeutic potential obtained by combining the alternating current signal and the direct current signal to the patient, the mixing circuit . A potential treatment device, comprising: a circuit that can vary a resistance value from 0 to ∞, which is disposed between a connection point for synthesizing the DC signal into the AC signal and the DC signal generation circuit .

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