JP2006239032A - Ac electric potential therapy apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric potential therapy apparatus which uses a square wave as a waveform of an AC voltage for application to a living body. <P>SOLUTION: The AC electric potential therapy apparatus is provided, which executes a therapy by placing the living body in an electric field by an AC high voltage of the square wave. The AC electric potential therapy apparatus includes a booster transformer 10 which increases the AC voltage applied to a primary side up to the AC high voltage necessary for the therapy and outputs it to a secondary side, a square wave generating circuit which generates the square wave to be applied to the primary side of the booster transformer 10 and a therapy voltage generating circuit to generate the AC voltage for application to the living body of which the voltage ratio of the crest values at the positive side and the negative side is 1:3 for example, from the AC high voltage which is output to an output terminal 12 on the secondary side of the booster transformer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an electric potential treatment device, and more particularly to an alternating current electric potential treatment device that performs treatment of a living body by placing the living body in an electric field with an AC high voltage having a positive / negative peak voltage ratio of, for example, 1: 3. .

The conventional AC potential treatment device promotes the ionic effect in the living body by placing the living body in an electric field based on an AC high voltage of several hundred to several thousand volts, that is, the ionization amount of sodium and calcium in the blood is normal. It is attracted to a certain value and normalizes the function of each part of the living body. Specifically, the use of an AC potential treatment device effectively relieves unpleasant symptoms such as stiff shoulders, headache, chronic constipation, and insomnia. When applying an alternating voltage to a living body, normally, a positive sine wave alternating high voltage of 1: 1 on the positive side versus the negative side is not applied as it is, but the positive potential of the alternating voltage that exhibits an excitable action is a negative potential that exhibits a sedative action. Is being made lower. Specifically, the positive / negative peak voltage ratio is set to 1: 3 (that is, positive side 75% to negative side 75%) which is an ideal ratio of positive / negative ions existing in a healthy living body. By doing so, based on the empirical rule that the metabolism of the living body becomes vigorous and the therapeutic effect is enhanced, the voltage ratio between the positive and negative peak values is often about 1: 3. However, the ratio is not necessarily limited to 1: 3, and the ratio may be arbitrarily set according to the purpose of use, including the case of 1: 1. In the following description, for convenience of explanation, the case where the voltage ratio between the positive and negative peak values that is most common in an actual treatment device is about 1: 3 will be mainly described.

The generation of an AC high voltage of several hundred to several thousand volts in a conventional AC potential treatment device is generally performed by a high voltage step-up transformer whose primary winding is connected to a commercial power supply (100 V). The AC high voltage generated in the secondary winding of the step-up transformer is naturally a sine wave with a positive / negative peak value ratio of 1: 1 (ie, positive 50% vs. negative 50%). It is sometimes preferable to set the ratio of 1: 3, which is an ideal ratio of positive and negative ions existing in a living body, and various circuits for this purpose have been devised and put to practical use.

As a typical circuit for changing the voltage ratio between the positive and negative peak values to 1: 3, a secondary winding of a step-up transformer as described in Japanese Patent No. 2609574 (Patent Document 1) is typical. A parallel circuit composed of a resistor and a diode at both ends and a positive voltage bleeder circuit including a resistor in the parallel circuit are connected in series, and the positive / negative peak value determined by the ratio of the two resistors is determined from the series connection point. There is one that obtains living body applied alternating current with a voltage ratio of 1: 3. Further, as described in Japanese Patent Application Laid-Open No. 2003-265625 (Patent Document 2), two windings having different generated voltages are provided on the secondary side of the step-up transformer, and the generated voltage of one of the low voltage windings is set. A voltage rectified only in the case of full-wave rectification or positive polarity is separately prepared, and this is superimposed on the voltage generated by the other winding of the high voltage in the opposite phase or in the same phase, so that the voltage ratio of the positive / negative peak value is 1: There is one that obtains 3 living body applied alternating current. Furthermore, the rectified voltage of the positive side voltage is stored in the capacitor, and the stored voltage is used as a bias voltage with respect to the negative side voltage, thereby obtaining a living body applied alternating current having a positive / negative peak value voltage ratio of 1: 3. There are things. FIG. 8 shows a typical waveform example of a biologically applied AC voltage having a voltage ratio of positive and negative peak values of 1: 3 in a conventional AC potential treatment device. The waveform in FIG. 8 is an example of a positive side peak value of 4,200 V, a negative side peak value of 12,400 V, and an effective value of 7,055 V. From the figure, it can be seen that the conventional AC potential treatment device is a sine wave shifted to the negative side although it is positive / negative asymmetric.

Japanese Patent No. 2609574 JP 2003-265625 A

As shown in FIG. 8, the voltage waveform in the conventional AC potential treatment device has a peak value of about 12,400 V measured when obtaining a voltage of, for example, 7,000 V necessary for treatment. The dielectric strength of electrical components used in the high-voltage circuit of the device must be able to handle the peak value, not the effective value, so when using a conventional sine wave with a large voltage difference between the effective value and the peak value The use of electrical components with a large withstand voltage was required. In addition, the parts are expensive, and the insulation process for the entire apparatus is complicated.

From the viewpoint of safety, the AC potential treatment device will have an allowable value for the peak value in the future. In addition, the allowable value of the crest value may be regulated lower by other safety standards, and in that case, the effective voltage required for effective treatment may not be obtained with the conventional sine wave. Come out.

The present invention has been devised in view of the above-mentioned problems of the prior art to solve the problems.

A first object of the present invention is to provide an AC potential treatment device capable of generating a biologically applied AC voltage having a large effective value even when the peak value is low.

The second object of the present invention is to provide a low-price AC potential treatment device by using an electrical component having a small withstand voltage and reducing the insulation treatment of the device.

In order to achieve the object, in the AC potential treatment device for treating a living body in an electric field with an AC high voltage according to the present invention, the waveform of the AC high voltage is a rectangular wave (square wave).

The AC potential treatment device according to the present invention comprises:
A step-up transformer that boosts the alternating voltage applied to the primary side to an alternating high voltage necessary for treatment and outputs it to the secondary side;
A rectangular wave generating circuit for generating a rectangular wave applied to the primary side of the step-up transformer;
A therapeutic voltage generation circuit that generates a rectangular wave living body applied AC voltage in which the ratio of the peak value of the positive side to the negative side is set to, for example, about 1: 3 from the AC high voltage output to the secondary side of the step-up transformer And.

In the potential treatment device, the rectangular wave generating circuit is connected to the primary side of the step-up transformer, and includes a rectangular wave shaping first transistor and a rectangular wave shaping second transistor that perform switching operation with a phase different by 180 °.

In the potential treatment device, the rectangular wave generating circuit further includes switching means for switching the rectangular wave shaping first and second transistors at phases different from each other by 180 °.

In the electric potential treatment device, the switching means includes a microcomputer, two inverters connected in series, a flip-flop circuit, or an input transformer.

In the electric potential treatment device, the rectangular wave shaping first and second transistors are constituted by bipolar transistors or field effect transistors.

In the potential treatment device, the rectangular wave generating circuit is also connected to the primary side of the step-up transformer, and the rectangular wave shaping first transistor and the rectangular wave shaping second transistor connected in series that perform switching operation with a phase different by 180 °, Also, it can be configured by a rectangular wave shaping third transistor and a rectangular wave shaping fourth transistor connected in series that perform switching operation with a phase different by 180 °.

According to the AC potential treatment device of the present invention, since the voltage waveform generated on the secondary side of the step-up transformer is a rectangular wave, a biologically applied AC voltage having a large effective value can be obtained even if the peak value is low. As an example, when a voltage with an effective value of 7,000 V is obtained, the peak value can be realized at about 10,400 V by actual measurement.

According to the AC potential treatment device of the present invention, since the peak value can be lowered, it is possible to use a component with a low withstand voltage for the parts used, and it is possible to reduce the insulation treatment. The overall cost of the treatment device can be reduced.

The best mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of an AC potential treatment device according to the present invention. In FIG. 1, the right side of the step-up transformer 10 is a therapeutic voltage generation circuit, and the left side is a rectangular wave generation circuit which is a characteristic part of the present invention.

The therapeutic voltage generation circuit includes a diode D1 having a cathode connected to a first terminal that generates a high voltage (for example, an effective value of 9,000 V) with respect to the secondary side ground terminal of the step-up transformer 10, and a secondary side ground terminal. The diode D2 has an anode connected to a second terminal that generates a low voltage (for example, an effective value of 3,000 V), one end connected to the cathode of the diode D2, and the other end of the diode D1. A protective resistor R1 connected to the anode, a protective resistor R2 having one end connected to the other end of the protective resistor R1 and the anode of the diode D1, and the other end connected to the output terminal 12, It comprises a diode D3 connected in parallel to the protective resistor R2 in the direction shown in the figure.

When the voltage generated on the secondary side of the step-up transformer 10 is positive with respect to the ground terminal, the high voltage generated at the first terminal is blocked by the diode D1. The voltage generated at the low-voltage second terminal is output to the output terminal 12 through the resistor R1 and also the forward-direction diode D3 because the diode D2 is in the forward direction. Further, when the polarity is negative with respect to the ground terminal, the voltage generated at the high voltage first terminal is output to the output terminal 12 via the diode D1 and the resistor R2 because the diode D1 is in the forward direction. In the case of this embodiment, the voltage ratio generated at the second terminal and the first terminal on the secondary side of the step-up transformer 10 is set to 1: 3, and the resistance R1 and the resistance R2 are set to the same resistance value. An alternating high voltage with a negative wave peak value voltage ratio of 1: 3 can be output to the output terminal 12. The therapeutic voltage generation circuit itself is not the gist of the present invention, and various conventional circuits described in the background art or other conventional circuits can be arbitrarily adopted instead of the illustrated circuit.

Next, a rectangular wave generating circuit that is a characteristic part of the present invention will be described. The rectangular wave generating circuit of the first embodiment shown in FIG. 1 is a microcomputer (hereinafter referred to as a switching means) that generates pulse outputs having phases different from each other by 180 ° at the first output terminal 31 and the second output terminal 32, respectively. 30), a rectangular wave shaping first transistor Q1 that receives at its base a pulse output from the first output terminal 31 of the microcomputer 30, and a pulse output from the second output terminal 32 of the microcomputer 30 It is an example of a push-pull circuit configuration comprising a rectangular wave shaped second transistor Q2 received by a base. In the figure, R3 and R4 are resistors for limiting the current flowing into the base of the rectangular wave shaping transistor.

In the rectangular wave generating circuit of the first embodiment, the rectangular wave shaping first transistor Q1 and the rectangular wave shaping second transistor Q2 are 180 ° by output pulses generated by the microcomputer 30 as switching means that are 180 ° out of phase with each other. The signals are alternately turned on at different phases, and a rectangular wave is input to the primary side of the step-up transformer 10.

When a rectangular wave is input to the primary side of the step-up transformer 10, a high voltage voltage of a rectangular wave boosted according to the turn ratio with the primary side is generated on the secondary side. This high voltage is passed through the treatment voltage generation circuit to become a rectangular wave living body applied AC voltage having a ratio of positive / negative voltage (crest value) of about 1: 3 as shown in FIG. The waveform illustrated in FIG. 2 is a therapeutic AC voltage having an effective value of 7,050 V when the positive peak value is 3,600 V and the negative peak value is 10,400 V. It can be seen that the same effective value as 7,050 V in the case of a sine wave can be obtained even if the crest value is about 2,000 V lower than the conventional sinusoidal biologically applied AC voltage shown in FIG. The same effective value means that the expected therapeutic effect is the same. If the peak value is reduced by 2,000 V by using a rectangular wave at the same effective value, the dielectric breakdown voltage required for the component may be low, thereby reducing the cost of the component and reducing the overall cost of the apparatus. it can. Moreover, the insulation process of the whole apparatus can be reduced compared with the conventional thing with the high voltage for treatment having a sine wave.

FIG. 3 shows a second embodiment of the AC potential treatment device according to the present invention. The second embodiment is a modification of the first embodiment of FIG. 1, and the rectangular wave shaping first and second transistors Q1, Q2 in FIG.
Are replaced with switching means comprising inverters IN1 and IN2 connected in series. The output pulse of the inverter IN1 is inputted to the base of the rectangular wave shaping second transistor Q2, and the output pulse of the inverter IN2 is inputted to the base of the rectangular wave shaping first transistor Q1, respectively. Since other configurations are the same as those of the first embodiment, only the same reference numerals are assigned to the respective components, and the description thereof is omitted.

In the rectangular wave generating circuit of the second embodiment, the rectangular wave shaping first transistor Q1 and the rectangular wave shaping second transistor Q2 are alternately turned on at a phase different by 180 ° in accordance with the pulse input to the inverter IN1, and the voltage is boosted. A rectangular wave is input to the primary side of the transformer 10. In response, a rectangular high voltage is generated on the secondary side of the step-up transformer 10, and a rectangular wave bioapplied AC voltage having a positive / negative peak value ratio of about 1: 3 shown in FIG. The output to the output terminal 12 is the same as in the first embodiment.

FIG. 4 shows a third embodiment of the AC potential treatment device according to the present invention. In the third embodiment, a flip-flop circuit 40 is used as switching means for switching the rectangular wave shaped first and second transistors Q1 and Q2 with a phase different by 180 °. In response to the clock pulse input to the clock signal input terminal 43, the flip-flop circuit 40 has a Q output 41 of the rectangular wave shaping first transistor Q1, and an inverted output Q (bar) 42 of the rectangular wave shaping second transistor Q2. , Each switch at a phase different by 180 °. Since other configurations are the same as those in the previous embodiment, only the same reference numerals are assigned to the respective components, and the description thereof is omitted.

In the rectangular wave generating circuit of the third embodiment, the rectangular wave shaping first transistor Q1 and the rectangular wave shaping second transistor Q2 are different in phase by 180 ° in accordance with the clock pulse input to the flip-flop circuit 40 serving as switching means. Are alternately turned on, and a rectangular wave is input to the primary side of the step-up transformer 10. In response, a rectangular high voltage is generated on the secondary side of the step-up transformer 10, and a rectangular wave bioapplied AC voltage having a positive / negative peak value ratio of about 1: 3 shown in FIG. The output to the output terminal 12 is the same as in the previous embodiment.

FIG. 5 shows a fourth embodiment of the AC potential treatment device according to the present invention. In the fourth embodiment, the same components as those in the first embodiment of FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted. Drive input signals to the rectangular wave shaped first transistor Q1 and second transistor Q2 of the fourth embodiment are obtained via an input transformer 20 with an intermediate tap on the secondary side. This circuit also constitutes a push-pull circuit as in the previous embodiment. In response to a rectangular wave input to the primary side input terminal 15 of the input transformer 20 as a switching means, pulses having a phase difference of 180 ° are alternately input to the transistors Q1 and Q2, and a rectangular wave is generated on the primary side of the step-up transformer 10. Will be entered. Correspondingly, a rectangular wave high voltage is generated on the secondary side of the step-up transformer 10, and a biological wave applied AC voltage having a positive / negative peak value ratio shown in FIG. Is output to the output terminal 12 as in the previous embodiments.

FIG. 6 shows a fifth embodiment of the AC potential treatment device according to the present invention. In the fifth embodiment, one side terminal on the primary side of the step-up transformer 10 is grounded, and two rectangular wave shaped first and second transistors Q1 connected in series between the positive and negative power supplies to the other side terminal. , Q2 are connected to form a single-end push-pull circuit. The collector of one transistor Q3 of the pair of first stage transistors whose bases and emitters are connected to each other is the base of the rectangular wave shaping first transistor Q1, and the collector of the other transistor Q4 is the rectangular wave shaping second transistor Q2. Connected to each base. When a rectangular wave is input to the common base of the first-stage transistor, the rectangular wave shaping first transistor Q1 and the rectangular wave shaping second transistor Q2 perform switching operations with a phase different by 180 °, and the rectangular wave is applied to the primary side of the step-up transformer 10. Will be input. In response to this, a rectangular wave high voltage is generated on the secondary side of the step-up transformer 10, and the biological wave applied AC voltage having a positive / negative peak value ratio of about 1: 3 as shown in FIG. Is output to the output terminal 12 as in the previous embodiments.

FIG. 7 shows a sixth embodiment of the AC potential treatment device according to the present invention. The rectangular wave generating circuit of the sixth embodiment constitutes an H-type bridge circuit. The first terminal on the primary side of the step-up transformer 10 is connected to the rectangular wave shaped first and second transistors Q5 and Q6 connected in series. On the other hand, the second terminal on the primary side of the step-up transformer 10 is connected to rectangular wave shaped third and fourth transistors Q7 and Q8 that are also connected in series. In this embodiment, as in the first embodiment, as the switching means for switching the rectangular wave shaping transistors Q5 to Q8, output pulses having a phase difference of 180 ° are applied to the first output terminal 31 and the second output terminal 32, respectively. A generating microcomputer 30 is used. The first output terminal 31 of the microcomputer 30 drives the rectangular wave shaping first transistor Q5 through the driving transistor Q9 and the rectangular wave shaping fourth transistor Q8 in the same phase. The second output terminal 32 of the microcomputer 30 drives the rectangular wave shaping second transistor Q6 and the rectangular wave shaping third transistor Q7 through the driving transistor Q10 in the same phase. In this embodiment, a bridge circuit is constituted by four rectangular wave shaping transistors Q5 to Q8, and a primary winding of the step-up transformer 10 is added therein. The rectangular wave shaping first and fourth transistors Q5 and Q8 have a first output terminal 31 of the microcomputer 30 as switching means, and the rectangular wave shaping second and third transistors Q6 and Q7 have a second output terminal 32 of the microcomputer 30. Therefore, pulses having phases different from each other by 180 ° are input. In response to this, a rectangular wave is input to the primary side of the step-up transformer 10 and a high-voltage voltage of a rectangular wave is generated on the secondary side of the step-up transformer 10. A rectangular wave bio-applied AC voltage having a peak value voltage ratio of about 1: 3 is output to the output terminal 12. R7 to R14 are current limiting resistors.

In the sixth embodiment of FIG. 7, the rectangular wave shaping first and fourth transistors Q5 and Q8 and the rectangular wave shaping second and third transistors Q6 and Q7 are shown as switching means for switching at a phase different by 180 °. Although not specifically shown here, the microcomputer can be replaced with a series circuit of two inverters shown in the second embodiment, a flip-flop circuit shown in the third embodiment, and an input transformer shown in the fourth embodiment. It is.

Although six embodiments have been illustrated and described as the rectangular wave generating circuit as described above, these are merely examples, and any rectangular wave generating circuit can be input to the primary winding of the step-up transformer 10. Any circuit may be used.

In all of the above embodiments, the rectangular wave shaping transistor is shown as a bipolar type transistor, but it can be replaced by a field effect transistor (FET).

As described above, in the AC potential treatment device according to the present invention, since the waveform of the AC voltage applied to the living body is not a sine wave but a rectangular wave, it is possible to obtain a high effective voltage even if the peak value is low.

In addition, since the peak value is lowered if the effective value is the same, it is possible to use a component having a low withstand voltage, and to reduce the processing for insulation of the device. As a result, the overall cost of the potential treatment device can be reduced.

1 is a circuit diagram of a first embodiment of an AC potential treatment device according to the present invention. FIG. It is a wave form diagram of a living body impressed AC voltage of a rectangular wave in an alternating current potential treatment device by the present invention. It is a circuit diagram of 2nd Example of the alternating current potential treatment device by this invention. It is a circuit diagram of a 3rd example of an alternating current potential treatment device by the present invention. It is a circuit diagram of the 4th example of an alternating current potential treatment device by the present invention. FIG. 6 is a circuit diagram of a fifth embodiment of an alternating potential therapeutic device according to the present invention. FIG. 9 is a circuit diagram of a sixth embodiment of an AC potential treatment device according to the present invention. It is a wave form diagram of a living body imposition AC voltage of a sine wave in a conventional AC potential treatment device.

Explanation of symbols

10 step-up transformer 12 output terminal 15 input terminal 20 input transformer 30 microcomputer 31 first output terminal 32 second output terminal 40 flip-flop 41 Q output terminal 42 Q (bar) output terminal 43 clock signal input terminals D1, D2, D3 Diode R1 , R2 Protection resistors IN1, IN2 Inverters Q1, Q2 Rectangular wave shaping transistors Q3, Q4 First stage transistors Q5-Q8 Rectangular wave shaping transistors Q9, Q10 Driving transistors R3-R14 Current limiting resistors

Claims (19)

An AC potential treatment device for treating a living body in an electric field by an AC high voltage, wherein the waveform of the AC high voltage is a rectangular wave. The electric potential treatment device according to claim 1, wherein the treatment device comprises:
A step-up transformer that boosts the alternating voltage applied to the primary side to an alternating high voltage necessary for treatment and outputs it to the secondary side;
A rectangular wave generating circuit for generating a rectangular wave to be applied to the primary side of the step-up transformer;
A treatment voltage generating circuit for generating a rectangular wave bioapplied AC voltage in which the positive and negative crest values are set to an arbitrary ratio from the AC high voltage output to the secondary side of the step-up transformer;
An AC potential treatment device comprising: 3. The AC potential treatment device according to claim 2, wherein a ratio between the peak values on the positive side and the negative side is 1: 3. 4. 3. The electric potential treatment device according to claim 2, wherein the rectangular wave generating circuit includes a rectangular wave shaping first transistor and a rectangular wave shaping second transistor that are connected to a primary side of the step-up transformer and perform switching operations at phases different by 180 degrees. An AC potential treatment device comprising: 3. The potential therapy device according to claim 2, wherein the rectangular wave generating circuit is connected to a primary side of the step-up transformer and is connected to a rectangular wave shaping first transistor and a rectangular wave that are connected in series to perform a switching operation with a phase different by 180 degrees. An AC potential treatment device comprising: a shaped second transistor; and a rectangular wave shaped third transistor and a rectangular wave shaped fourth transistor connected in series that perform switching operation at a phase different by 180 °. 5. The electric potential treatment device according to claim 4, wherein the rectangular wave generating circuit further includes switching means for switching the rectangular wave shaping first and second transistors at phases different from each other by 180 degrees. AC potential therapy device.
5. The AC potential treatment device according to claim 4, wherein the rectangular wave shaped first and second transistors are bipolar transistors. 6. 5. The AC potential treatment device according to claim 4, wherein the rectangular wave shaped first and second transistors are field effect transistors (FETs). 6. The AC potential treatment device according to claim 5, wherein the rectangular wave shaping first to fourth transistors are bipolar transistors. 6. The alternating current potential treatment device according to claim 5, wherein the rectangular wave shaped first to fourth transistors are field effect transistors (FETs). 6. The electric potential therapy device according to claim 5, wherein the rectangular wave generating circuit further causes the rectangular wave shaping first and second transistors and the rectangular wave shaping third and fourth transistors to have phases different from each other by 180 degrees. An AC potential treatment device comprising switching means for performing a switching operation. 7. The electric potential treatment device according to claim 6, wherein the switching means is constituted by a microcomputer. 7. The electric potential treatment device according to claim 6, wherein the switching means is composed of two inverters connected in series. 7. The electric potential treatment device according to claim 6, wherein the switching means is constituted by a flip-flop circuit. 7. The alternating current potential treatment device according to claim 6, wherein the switching means includes an input transformer. 12. The electric potential treatment device according to claim 11, wherein the switching means is constituted by a microcomputer. 12. The alternating current potential treatment device according to claim 11, wherein the switching means includes two inverters connected in series. 12. The potential treatment device according to claim 11, wherein the switching means is formed of a flip-flop circuit. 12. The electric potential treatment device according to claim 11, wherein the switching means is constituted by an input transformer.

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