Treatment equipment

Abstract

To provide a treatment instrument capable of excellently superimposing and outputting two electric signals regardless of the order (the number of digits) of two frequencies.SOLUTION: A second AC drive circuit 40 is disposed on the high-side (high-potential side) of a first AC drive circuit 30, the outputs 47a and 47b of the second AC drive circuit 40 are bridged via diodes D1, D2, and a connecting portion Cp1 between a voltage control circuit 32 and an electrode-switching circuit 34 is disposed between the diodes D1 and D2. Accordingly, regardless of the frequency order (the number of digits) of an electric signal output from the second AC drive circuit 40, the electric signal output from the second AC drive circuit 40 is not short-circuited. Thus, an electric signal suitable for EMS treatment and an electric signal suitable for high-frequency thermal treatment can be excellently superimposed without interfering with each other and output from output terminals T1, T2.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a treatment device that has first and second electrodes that can come into contact with a living body, and that applies electrical stimulation to the living body via the first and second electrodes based on power supplied from a power source. [Background technology]

[0002] Japanese Patent Application Laid-Open Publication No. 2014-64735 (Patent Document 1) describes a treatment device that includes a pair of electrodes that are brought into contact with the skin, a first electrical signal generating means that generates a low-frequency first electrical signal and has an output terminal connected to the pair of electrodes, and a second electrical signal generating means that generates a high-frequency second electrical signal and has an output terminal connected to the output terminal of the first electrical signal generating means via a pair of capacitors, and that applies electrical stimulation to the skin by superimposing the low-frequency first electrical signal and the high-frequency second electrical signal and outputting them to the pair of electrodes.

[0003] This treatment device applies an electrical signal to the skin that is a superposition of a first low-frequency electrical signal and a second high-frequency electrical signal, so it is possible to simultaneously treat a relatively wide area of ​​the skin and a relatively lower part of the skin, and a relatively narrow area of ​​the skin and a relatively upper part of the skin, and it is also possible to prevent the skin from becoming accustomed to the electrical stimulation. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-64735 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the treatment device described in the above publication can perform superposition well when the orders (number of digits) of the two frequencies are significantly different, for example, when the low-frequency first electrical signal is 100 Hz and the high-frequency second electrical signal is 2 MHz. However, when the orders (number of digits) of the two frequencies are similar, for example, when the low-frequency first electrical signal is 100 kHz and the high-frequency second electrical signal is 200 kHz, the high-frequency second electrical signal (200 kHz) is short-circuited via the capacitor and interferes with the low-frequency first electrical signal (100 kHz), making superposition impossible.

[0006] The present invention has been made in view of the above, and one of its objects is to provide a treatment device that can output two electrical signals in a well-superimposed manner regardless of the order (number of digits) of the two frequencies. [Means for solving the problem]

[0007] The treatment device of the present invention employs the following means to achieve the above-mentioned object.

[0008] A preferred embodiment of the treatment device according to the present invention includes first and second electrodes that can contact a living body and that apply electrical stimulation to the living body via the first and second electrodes based on power supplied from a power source. The treatment device includes first and second output terminals to which the first and second electrodes are connected, a first AC drive circuit, a first regulation unit, a second regulation unit, and a second AC drive circuit. The first AC drive circuit has a first input unit that receives power from the power source and a first conversion unit connected to the first input unit and the first and second output terminals. The first conversion unit is capable of converting power input to the first input unit into a first electrical signal of a first frequency and outputting it. The first regulation unit is disposed between the first input unit and the first output terminal so as to allow current to flow from the first input unit to the first output terminal while regulating current flow from the first output terminal to the first input unit. The second regulator is disposed between the first input section and the second output terminal so as to permit current flow from the first input section to the second output terminal while regulating current flow from the second output terminal to the first input section. The second AC drive circuit includes a second input section to which power from a power source is input, a second converter connected to the second input section, and first and second output sections connected to the second converter. The second AC drive circuit has a first output section connected between the first regulator and the first output terminal, and a second output section connected between the second regulator and the second output terminal. The second converter is capable of converting the power input to the second input section into a second electrical signal having a second frequency higher than the first frequency and outputting the second electrical signal. Here, the first frequency may be in a frequency band of 0.1 Hz to 100 kHz, and the second frequency may be in a frequency band of 200 kHz to 4 MHz.

[0009] According to the present invention, the first and second output sections of the second AC drive circuit are connected between the first and second regulators and the first and second output terminals. In other words, the second AC drive circuit is disposed on the high side (high potential side) of the first AC drive circuit, the first and second output sections of the second AC drive circuit are bridged via the first and second regulators, and the first input section of the first AC drive circuit is connected between the first and second regulators. This prevents the second electrical signal from being short-circuited regardless of the order (number of digits) of the second frequency. That is, the second electrical signal is not short-circuited not only when the order (number of digits) of the second frequency differs from the order (number of digits) of the first frequency, but also when the order (number of digits) of the second frequency is similar to the order (number of digits) of the first frequency. This prevents the first and second electrical signals from interfering with each other. As a result, the first and second electrical signals can be effectively superimposed and output from the first and second output terminals. Furthermore, because two electrical signals are output from a pair of output terminals (first and second output terminals), the space required for arranging the output terminals of the first and second electrodes can be reduced compared to a configuration in which a pair of output terminals corresponding to each of the two electrical signals is arranged to output each of the two electrical signals. This frees up space so that other elements, such as an ultrasonic vibrator, can be arranged, thereby realizing a treatment device that can perform treatments using ultrasonic vibrations in addition to treatments using electrical stimulation while suppressing the device's size. Furthermore, by setting the second frequency to a frequency band of 200 kHz to 4 MHz, heat can be generated, warming the living body from deep within and promoting metabolism, thereby achieving body-healthy and skin-beautifying effects. As a result, by setting the first frequency to, for example, a frequency suitable for Electric Muscle Stimulation (hereinafter referred to as "EMS"), a frequency suitable for electroporation (hereinafter referred to as "EP"), or a frequency suitable for iontophoresis, it is possible to warm the living body while causing muscle exercise or to introduce beauty serum into the living body while warming it, thereby further improving the treatment effect while shortening the treatment time.

[0010] According to a further aspect of the treatment device of the present invention, the first regulating unit is a first diode having a first anode and a first cathode. The first anode is connected to the first input unit. The first cathode is connected to the first output unit. The second regulating unit is a second diode having a second anode and a second cathode. The second anode is connected to the first input unit. The second cathode is connected to the second output unit.

[0011] According to this embodiment, the first and second restricting portions can be easily realized by simply arranging the two diodes with their orientations regulated.

[0012] According to a further aspect of the treatment device of the present invention, the first conversion unit includes a first switching element having one end connected to the first output unit and the other end connected to the first output terminal, a second switching element having one end connected to the second output unit and the other end connected to the second output terminal, a third switching element having one end connected to the first output terminal and the other end grounded, a fourth switching element having one end connected to the second output terminal and the other end grounded, and a switching circuit capable of driving the first to fourth switching elements. The second conversion unit includes a transformer having a primary winding connected to the second input unit and a secondary winding connected to the first and second output units and insulated from the primary winding.

[0013] According to this embodiment, it is possible to easily realize a configuration in which an electrical signal from a power source is converted to a first frequency and output, and a configuration in which an electrical signal from a power source is converted to a second frequency higher than the first frequency and output.

[0014] According to a further aspect of the treatment device of the present invention, the treatment device further includes a control unit capable of controlling the first conversion unit. In a first mode in which power from the power source is supplied to the first input unit, the control unit controls the first conversion unit to alternately and repeatedly execute a first state in which the first and fourth switching elements are turned on and the second and third switching elements are turned off, and a second state in which the first and fourth switching elements are turned off and the second and third switching elements are turned on. Here, the "first mode" in the present invention preferably includes a mode in which power from the power source is output to the first and second output terminals as a first electrical signal via only the first AC drive circuit, as well as a mode in which power from the power source is output to the first and second output terminals via the first and second AC drive circuits with the first and second electrical signals superimposed on each other.

[0015] According to this embodiment, since only the first to fourth switching elements are controlled to be turned on and off, when the first mode is selected, it is possible, with simple control, to convert the power from the power source into a first electrical signal of a first frequency and output it, or to convert the power from the power source into first and second electrical signals of first and second frequencies and superimpose these two electrical signals and output them.

[0016] According to a further aspect of the treatment device of the present invention, in a second mode in which power from the power source is supplied only to the second input unit, the control unit controls the first conversion unit to turn on the first and third switching elements and to turn off the second and fourth switching elements.

[0017] According to this embodiment, since only the first to fourth switching elements are controlled to be turned on and off, when the second mode is selected, the power from the power source can be converted into a second electrical signal of the second frequency and output with simple control. [Effects of the Invention]

[0018] According to the present invention, it is possible to provide a treatment device that can output two frequencies in a well-superimposed manner regardless of the order (number of digits) of the two frequencies. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a schematic diagram showing the outline of the configuration of a treatment device 1 according to an embodiment of the present invention. [Figure 2] 2 is an explanatory diagram showing details of a first AC drive circuit 30 and a second AC drive circuit 40. FIG. [Figure 3] FIG. 2 is an external view showing an example of treatment probes 60a and 60b. [Figure 4] FIG. 4 is a cross-sectional view showing the AA section of FIG. [Figure 5] 10 is a schematic diagram showing the transmission of electrical stimulation or ultrasonic vibration to a living body in the treatment device 1 of the modified example. FIG. [Figure 6] FIG. 10 is a schematic diagram showing the outline of the configuration of a treatment device 100 according to a modified example. [Figure 7] 10 is a schematic diagram showing the transmission of electrical stimulation or ultrasonic vibration to a living body in the treatment device 100 of a modified example. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] Next, the best mode for carrying out the present invention will be described using examples. [Example]

[0021] 1, the treatment device 1 according to the present embodiment includes a device main body 2 and a pair of treatment probes 60a, 60b electrically connected to the device main body 2. In this embodiment, the treatment device 1 is configured as a beauty device that can perform, individually or in combination, the following treatments: EMS treatment, which applies electrical stimulation having a frequency of 0.1 Hz to 100 kHz to the living body to stimulate the muscles and train and strengthen them; treatment, which generates heat by configuring the frequency band to 200 kHz to 4 MHz to warm the deep inside of the living body; and treatment, which applies ultrasonic vibrations having a frequency of 1 MHz to 5 MHz to the living body to remove old dead skin cells and dirt from the skin and tighten the skin.

[0022] The device main body 2 can be connected to an AC power source 6 via an AC / DC adapter 4 and is powered by power converted to DC by the AC / DC adapter 4. As shown in FIG. 1 , the device main body 2 includes an operation unit 8, a display panel 10, a DC / DC converter 12 that converts DC power from the AC / DC adapter 4 into stabilized DC power, a mode switching circuit 20 that receives the DC power converted by the DC / DC converter 12, a first AC drive circuit 30, a second AC drive circuit 40, and an ultrasonic generating circuit 50 that are driven by the DC power supplied via the mode switching circuit 20, and an electronic control unit 70 that controls the entire device. The AC power source 6 is an example of a configuration that corresponds to "power source" in this invention.

[0023] The operation unit 8 has a power switch (not shown) for turning on / off the power supply to the device main body 2, a level selector switch (not shown) for changing the current value and frequency applied to the treatment probes 60a and 60b, a mode selector switch (not shown) for changing the treatment mode, etc. The display panel 10 displays the power supply status (on / off), the set current value and frequency, the selected treatment mode, etc.

[0024] The mode switching circuit 20 can switch modes among a first mode in which power is supplied only to the first AC drive circuit 30, a second mode in which power is supplied only to the second AC drive circuit 40, a third mode in which power is supplied only to the ultrasonic generating circuit 50, a fourth mode in which power is supplied to the first and second AC drive circuits 30, 40, a fifth mode in which power is supplied to the second AC drive circuit 40 and the ultrasonic generating circuit 50, a sixth mode in which power is supplied to the first AC drive circuit 30 and the ultrasonic generating circuit 50, and a seventh mode in which power is supplied to the first and second AC drive circuits 30, 40 and the ultrasonic generating circuit 50. The first mode is an EMS treatment mode in which only EMS treatment is performed, the second mode is a high-frequency thermal treatment mode, the third mode is an ultrasound treatment mode in which only ultrasonic vibrations are applied to the living body, the fourth mode is a mode in which EMS treatment and high-frequency thermal treatment are performed simultaneously, the fifth mode is a mode in which high-frequency thermal treatment and ultrasound treatment are performed simultaneously, the sixth mode is a mode in which EMS treatment and ultrasound treatment are performed simultaneously, and the seventh mode is a mode in which EMS treatment, high-frequency thermal treatment and ultrasound treatment are performed simultaneously. The first, fourth, sixth, and seventh modes correspond to the "first mode" in this invention, and the second and fifth modes are examples of implementations corresponding to the "second mode" in this invention.

[0025] 2, the first AC drive circuit 30 is connected to the mode switching circuit 20 via an input node Ip1 and includes a voltage control circuit 32, an electrode switching circuit 34, and a pair of output terminals T1 and T2. The voltage control circuit 32 adjusts the DC power converted by the DC / DC converter 12 to a voltage having a frequency set by a level switching switch and supplies the adjusted voltage to the electrode switching circuit 34. Diodes D1 and D2 are respectively arranged between a connection node Cp1 between the voltage control circuit 32 and the electrode switching circuit 34 (in other words, an input node to which a current resulting from the voltage adjusted by the voltage control circuit 32 is input) and the pair of output terminals T1 and T2. The diode D1 is arranged so that its anode is on the connection node Cp1 side and its cathode is on the output terminal T1 side, and the diode D2 is arranged so that its anode is on the connection node Cp1 side and its cathode is on the output terminal T2 side. In other words, the anodes of diodes D1 and D2 are connected to the voltage control circuit 32, and the cathodes of diodes D1 and D2 are connected to the drains of switching elements SW1 and SW3 (described later). That is, diodes D1 and D2 are oriented so as to allow current from connection Cp1 to flow to output terminals T1 and T2, while restricting the reverse (current flow into connection Cp1). The output terminals T1 and T2 correspond to the "first output terminal" and "second output terminal," respectively, and connection Cp1 is an example of an embodiment corresponding to the "first input unit" of the present invention. Furthermore, the electrode switching circuit 34 is an example of an embodiment corresponding to the "first conversion unit" of the present invention. Furthermore, the anode and cathode of diode D1 correspond to the "first anode" and "first cathode," respectively, and the anode and cathode of diode D2 are an example of an embodiment corresponding to the "second anode" and "second cathode," respectively.

[0026] 2, the electrode switching circuit 34 includes switching elements SW1, SW2, SW3, and SW4, and an FET drive circuit 36. The electrode switching circuit 34 is an example of a configuration that corresponds to a “first conversion unit” of the present invention.

[0027] In this embodiment, the switching elements SW1, SW2, SW3, and SW4 are configured to use N-channel MOSFETs. As shown in FIG. 2, the switching element SW1 has a drain connected to the cathode of the diode D1 (in other words, the output section 47a of the secondary coil 46b of the transformer 46), a source connected to the output terminal T1, and a gate connected to the output of the FET drive circuit 36. The switching element SW2 has a drain connected to the source of the switching element SW1 (in other words, the output terminal T1), a source grounded to ground G, and a gate connected to the output of the FET drive circuit 36. That is, the switching elements SW1 and SW2 are connected in series via the output terminal T1. The switching element SW3 has a drain connected to the cathode of the diode D2 (in other words, the output section 47b of the secondary coil 46b of the transformer 46), a source connected to the output terminal T2, and a gate connected to the output of the FET drive circuit 36. The drain of the switching element SW4 is connected to the source of the switching element SW3 (in other words, the output terminal T2), the source is grounded to ground G, and the gate is connected to the output of the FET drive circuit 36. That is, the switching elements SW3 and SW4 are connected in series via the output terminal T2. Here, "ground" refers to connection to the ground, which is the reference potential, and is not limited to connection to earth. The switching element SW1 corresponds to the "first switching element" of the present invention, the switching element SW2 corresponds to the "third switching element" of the present invention, the switching element SW3 corresponds to the "second switching element" of the present invention, and the switching element SW4 corresponds to the "fourth switching element" of the present invention. The diodes D1 and D2 are examples of embodiments corresponding to the "first regulating unit" and "second regulating unit" of the present invention, respectively.

[0028] The FET drive circuit 36 ​​is composed of resistors and diodes (not shown) and is driven by DC power from the DC / DC converter 12. The FET drive circuit 36 ​​is a circuit that turns on and off the switching elements SW1, SW2, SW3, and SW4 by applying a voltage to the gates of these switching elements SW1, SW2, SW3, and SW4.

[0029] As shown in FIG. 2, the second AC drive circuit 40 is connected to the mode switching circuit 20 via an input Ip2 and includes an AC control circuit 42, a power control circuit 44, and a transformer 46. The AC control circuit 42 receives an on / off signal and a frequency setting signal from the electronic control unit 70 to control the power control circuit 44. The power control circuit 44 adjusts the DC power converted by the DC / DC converter 12 to a power value set by the level selector switch and a frequency adjusted by the AC control circuit 42, and supplies the adjusted power to the transformer 46. The transformer 46 has a primary coil 46a connected to the output of the power control circuit 44 and a secondary coil 46b insulated from the primary coil 46a. Outputs 47a and 47b of the secondary coil 46b are connected to the cathodes of diodes D1 and D2, respectively, in other words, to the drains of switching elements SW1 and SW3. That is, the second AC drive circuit 40 is disposed on the high side (high potential side) of the first AC drive circuit 30. The input unit Ip2 corresponds to a "second input unit" in the present invention, and the output units 47a and 47b are examples of embodiments corresponding to a "first output unit" and a "second output unit" in the present invention, respectively. The AC control circuit 42 and the transformer 46 correspond to a "second conversion unit" in the present invention, and the primary coil 46a and the secondary coil 46b are examples of embodiments corresponding to a "primary winding" and a "secondary winding" in the present invention, respectively.

[0030] The ultrasonic generating circuit 50 includes an oscillator circuit (not shown) that converts the DC power converted by the DC / DC converter 12 into a continuous high-frequency AC signal, and ultrasonic vibrators 52a and 52b (see FIGS. 1 and 4) that convert the high-frequency AC signal from the oscillator circuit into ultrasonic vibrations. The ultrasonic vibrators 52a and 52b are passive elements (e.g., piezoelectric elements) that generate natural vibrations when a voltage is applied. The vibration frequency of the ultrasonic vibrators 52a and 52b can be, for example, approximately 1 MHz.

[0031] As shown in FIG. 3, the treatment probes 60a, 60b have main bodies 62a, 62b, conductive probe heads 64a, 64b integrated with the main bodies 62a, 62b, and grip bands 66a, 66b attached to the main bodies 62a, 62b, and are electrically connected to the device main body 2 by power lines L1, L2, L3, and L4 as shown in FIG. 1. The treatment probes 60a, 60b may be, for example, an O-probe (a trade name manufactured by Miyako Chemical Co., Ltd.). The treatment probes 60a, 60b are examples of embodiments corresponding to the "first electrode" and the "second electrode" of the present invention, respectively.

[0032] As shown in Fig. 4, the probe heads 64a and 64b have a hollow truncated conical shape made of metal. One end of power lines L1 and L2 is electrically connected to inner surfaces 640a and 640b of the peripheral walls of the probe heads 64a and 64b, respectively, and the other ends of the power lines L1 and L2 are electrically connected to output terminals T1 and T2, respectively. Furthermore, ultrasonic transducers 52a and 52b are disposed on bottom surfaces 642a and 642b of the probe heads 64a and 64b, respectively, and are electrically connected to one ends of power lines L3 and L4, respectively. The other ends of the power lines L3 and L4 are electrically connected to output terminals T3 and T4, respectively. In this way, in this embodiment, only one electrode (connection terminal for power lines L1, L2) is arranged on each of inner surfaces 640a, 640b of the peripheral wall of each of probe heads 64a, 64b, so that space for arranging ultrasonic vibrators 52a, 52b (bottom surfaces 642a, 642b of each of probe heads 64a, 64b) can be satisfactorily secured. This makes it possible to realize a treatment device 1 that can perform treatment by ultrasonic vibration in addition to treatment by electrical stimulation while suppressing an increase in the size of device main body 2.

[0033] As shown in FIGS. 1 and 2, the electronic control unit 70 is configured as a microprocessor centered on a CPU. In addition to the CPU, the electronic control unit 70 includes a ROM for storing processing programs such as treatment programs (such as a treatment program that performs only EMS, a thermal treatment program that applies only high-frequency waves, a treatment program that applies only ultrasonic vibrations, or a treatment program that combines these, i.e., a program that performs treatments in the first through seventh modes), a RAM for temporarily storing data, and input / output and communication ports (not shown). The electronic control unit 70 receives inputs via the input port, such as an on / off signal from a power switch, a set amplitude value (current value, voltage value, or power value) and set frequency from a level selector switch, a treatment mode signal from a mode selector switch, and a treatment time from a timer (not shown). The electronic control unit 70 also outputs drive signals (switching signals to switching elements SW1, SW2, SW3, and SW4) to the first and second AC drive circuits 30 and 40, a drive signal to the ultrasound generating circuit 50, and a mode switching signal to the mode switching circuit (not shown). The electronic control unit 70 is an example of an embodiment corresponding to the "controller" of the present invention.

[0034] Next, the operation of the treatment device 1 configured in this manner, particularly the operation when the treatment device 1 is driven in the first to seventh modes, will be described. Below, the operations from the first mode to the seventh mode will be described in order.

[0035] <First mode> When the practitioner turns on the power switch of the operation unit 8, switches the mode switch to the first mode, and brings the treatment probes 60a, 60b into contact with the body (treatment area) of the patient, the CPU of the electronic control unit 70 drives the treatment device 1 in accordance with the program for EMS treatment stored in the ROM. Specifically, the CPU of the electronic control unit 70 outputs a mode switching signal to switch the mode switching circuit 20 so that power via the DC / DC converter 12 is supplied only to the first AC drive circuit 30, drives and controls the voltage control circuit 32 so that the power via the DC / DC converter 12 has a voltage suitable for EMS treatment, and drives and controls the FET drive circuit 36 ​​so that electrical signals with a frequency of 0.1 Hz to 100 kHz are output from the first and second output terminals T1, T2. The FET drive circuit 36 ​​switches between a first state, in which the switching elements SW1 and SW4 are turned on and the switching elements SW2 and SW3 are turned off, and a second state, in which the switching elements SW1 and SW4 are turned off and the switching elements SW2 and SW3 are turned on, at a frequency of 0.1 Hz to 100 kHz. This allows electrical stimulation suitable for EMS treatment to be applied to the body (treatment area) of the patient via the treatment probes 60a and 60b. In other words, an electrical signal with a frequency of 0.1 Hz to 100 kHz is generated between the two treatment probes 60a and 60b, and electrical stimulation is applied to the body (treatment area) of the patient (twin-polar type, see FIG. 5). As a result, as shown in FIG. 5, the electrical signal output from the wide areas of the two treatment probes 60a and 60b (probe heads 64a and 64b) can provide electrical stimulation over a wide range, even to the muscle layer (inner muscle).

[0036] <Second mode> When the practitioner turns on the power switch of the operation unit 8, switches the mode switch to the second mode, and brings the treatment probes 60a and 60b into contact with the body (treatment area) of the patient, the CPU of the electronic control unit 70 drives the treatment device 1 in accordance with the program for high-frequency thermal treatment stored in the ROM. Specifically, the CPU of the electronic control unit 70 outputs a mode switching signal to switch the mode switching circuit 20 so that power via the DC / DC converter 12 is supplied only to the second AC drive circuit 40, drives and controls the power control circuit 44 so that the power via the DC / DC converter 12 is power suitable for high-frequency thermal treatment, and drives and controls the AC control circuit 42 and the FET drive circuit 36 ​​so that electrical signals with frequencies between 200 kHz and 4 MHz are output from the first and second output terminals T1 and T2. The FET drive circuit 36 ​​turns on switching elements SW1 and SW3 and turns off switching elements SW2 and SW4. As a result, electrical stimulation suitable for high-frequency thermal treatment is applied to the body (treatment area) of the patient via the treatment probes 60a and 60b. In other words, an electrical signal with a frequency of 200 kHz to 4 MHz is generated between the two treatment probes 60a and 60b, and the electrical stimulation is applied to the body (treatment area) of the patient (twin polar type, see Figure 5). As a result, the electrical signal with a frequency of 200 kHz to 4 MHz output from the wide area of ​​the two treatment probes 60a and 60b (probe heads 64a and 64b) generates heat over a wide range, allowing the body to be warmed from deep within. This can produce skin-beautifying and slimming effects.

[0037] <Third mode> When the practitioner turns on the power switch of the operation unit 8, switches the mode selector switch to the third mode, and brings the treatment probes 60a and 60b into contact with the body of the patient (treatment area), the CPU of the electronic control unit 70 drives the treatment device 1 according to the program for ultrasonic treatment stored in the ROM. Specifically, the CPU of the electronic control unit 70 outputs a mode switching signal to switch the mode switching circuit 20 so that power via the DC / DC converter 12 is supplied only to the ultrasonic generating circuit 50, and drives and controls the ultrasonic generating circuit 50 so that the power via the DC / DC converter 12 is converted into an electrical signal of a frequency (1 MHz to 5 MHz) suitable for ultrasonic treatment and output from the output terminals T3 and T4. This causes the ultrasonic vibrators 52a and 52b to vibrate, and vibrations suitable for ultrasonic treatment are applied to the body of the patient (treatment area) via the treatment probes 60a and 60b. In other words, ultrasonic vibrations at a frequency of 1 MHz to 5 MHz are generated between the two treatment probes 60a, 60b and applied to the body (treatment area) of the patient (twin polar type, see Figure 5). As a result, the ultrasonic vibrations at a frequency of 1 MHz to 5 MHz output from the wide area of ​​the two treatment probes 60a, 60b (probe heads 64a, 64b) can remove old dead skin cells and dirt from the skin over a wide area and tighten the skin.

[0038] <Fourth mode> When the practitioner turns on the power switch of the operating unit 8 and switches the mode changeover switch to the fourth mode, and brings the treatment probes 60a, 60b into contact with the body of the person being treated (treatment area), the CPU of the electronic control unit 70 drives the treatment device 1 in accordance with the program stored in the ROM, specifically, the program for simultaneously performing EMS treatment and high-frequency thermal treatment. More specifically, the CPU of the electronic control unit 70 outputs a mode switching signal to switch the mode switching circuit 20 so that power via the DC / DC converter 12 is supplied to the first and second AC drive circuits 30, 40, drives and controls the voltage control circuit 32 so that the power via the DC / DC converter 12 has a voltage suitable for EMS treatment, drives and controls the FET drive circuit 36 ​​so that electrical signals with a frequency of 0.1 Hz to 100 kHz are output from the first and second output terminals T1, T2, drives and controls the power control circuit 44 so that the power via the DC / DC converter 12 has a voltage suitable for high-frequency thermal treatment, and drives and controls the AC control circuit 42 so that electrical signals with a frequency of 200 kHz to 4 MHz are output from the first and second output terminals T1, T2. The FET drive circuit 36 ​​switches between a first state in which the switching elements SW1 and SW4 are turned on and the switching elements SW2 and SW3 are turned off, and a second state in which the switching elements SW1 and SW4 are turned off and the switching elements SW2 and SW3 are turned on, at a frequency of 0.1 Hz to 100 kHz. As a result, an electrical signal in which an electrical signal with a frequency of 0.1 Hz to 100 kHz and an electrical signal with a frequency of 200 kHz to 4 MHz are superimposed is output from the output terminals T1 and T2. That is, an electrical stimulus based on the electrical signal in which the electrical signal with a frequency of 0.1 Hz to 100 kHz and the electrical signal with a frequency of 200 kHz to 4 MHz are superimposed is applied to the body (treatment area) of the treatment recipient via the treatment probes 60a and 60b. In other words, an electrical signal in which an electrical signal with a frequency of 1 Hz to 100 kHz and an electrical signal with a frequency of 200 kHz to 4 MHz are superimposed is generated between the two treatment probes 60a, 60b, and electrical stimulation is given to the body of the patient (treatment area) (twin polar type, see Figure 5).As a result, the electrical signals (electrical signals in which an electrical signal with a frequency of 1 Hz to 100 kHz and an electrical signal with a frequency of 200 kHz to 4 MHz are superimposed) output from the wide areas of the two treatment probes 60a, 60b (probe heads 64a, 64b) can warm a wide range from deep inside the living body while providing electrical stimulation down to the muscle layer (inner muscle).

[0039] In this embodiment, the output sections 47a, 47b of the second AC drive circuit 40 are connected between the diodes D1, D2 and the output terminals T1, T2, respectively, more specifically, to the connection sections Cp2, Cp3 between the cathodes of the diodes D1, D2 and the drains of the switching elements SW1, SW2. In other words, the second AC drive circuit 40 is located on the higher side (higher potential side) than the first AC drive circuit 30, the output sections 47a, 47b of the second AC drive circuit 40 are bridged via the diodes D1, D2, and the connection section Cp1 between the voltage control circuit 32 and the electrode switching circuit 34 is located between the diodes D1, D2. Therefore, regardless of the frequency order (number of digits) of the electrical signal (electrical signal suitable for high-frequency thermal treatment) output from the second AC drive circuit 40, the electrical signal (electrical signal suitable for high-frequency thermal treatment) output from the second AC drive circuit 40 will not be short-circuited. That is, the electrical signal output from the second AC drive circuit 40 (electrical signal suitable for high-frequency thermal treatment) will not short-circuit not only when the frequency order (number of digits) of the electrical signal output from the second AC drive circuit 40 (electrical signal suitable for high-frequency thermal treatment) deviates from the frequency order (number of digits) of the electrical signal output from the first AC drive circuit 30 (electrical signal suitable for EMS treatment) (for example, when the frequency of the electrical signal suitable for EMS treatment is 0.1 Hz and the frequency of the electrical signal suitable for high-frequency thermal treatment is 4 MHz), but also when the frequency order (number of digits) of the electrical signal output from the second AC drive circuit 40 (electrical signal suitable for high-frequency thermal treatment) is close to the frequency order (number of digits) of the electrical signal output from the first AC drive circuit 30 (electrical signal suitable for EMS treatment) (for example, when the frequency of the electrical signal suitable for EMS treatment is 100 kHz and the frequency of the electrical signal suitable for high-frequency thermal treatment is 200 kHz). This allows the electrical signals suitable for EMS treatment and the electrical signals suitable for high-frequency thermal treatment to be superimposed well and output from output terminals T1 and T2 without causing interference between the electrical signals suitable for EMS treatment and the electrical signals suitable for high-frequency thermal treatment.

[0040] <5th Mode> When the practitioner turns on the power switch of the operating unit 8 and switches the mode changeover switch to the fifth mode, and brings the treatment probes 60a, 60b into contact with the body of the patient (treatment area), the CPU of the electronic control unit 70 drives the treatment device 1 in accordance with the program stored in the ROM, specifically, the program for simultaneously performing high-frequency thermal treatment and ultrasonic treatment. More specifically, the CPU of the electronic control unit 70 outputs a mode switching signal to switch the mode switching circuit 20 so that power via the DC / DC converter 12 is supplied to the second AC driving circuit 40 and the ultrasonic generating circuit 50, drives and controls the power control circuit 44 so that the power via the DC / DC converter 12 is power suitable for high-frequency hyperthermia treatment, drives and controls the AC control circuit 42 and the FET driving circuit 36 ​​so that electrical signals with a frequency of 200 kHz to 4 MHz are output from the first and second output terminals T1, T2, and drives and controls the ultrasonic generating circuit 50 so that the power via the DC / DC converter 12 is converted into an electrical signal with a frequency (1 MHz to 5 MHz) suitable for ultrasonic treatment and output from the output terminals T3, T4. The FET driving circuit 36 ​​turns on switching elements SW1, SW3 and turns off switching elements SW2, SW4. As a result, electrical signals with a frequency of 200 kHz to 4 MHz are output from output terminals T1 and T2, and electrical signals with a frequency of 1 MHz to 5 MHz are output from output terminals T3 and T4. That is, electrical stimulation based on the electrical signals with a frequency of 200 kHz to 4 MHz and ultrasonic vibrations based on the electrical signals with a frequency of 1 MHz to 5 MHz are applied to the body of the patient (treatment area) via treatment probes 60a and 60b. In other words, it can be said that electrical signals with a frequency of 200 kHz to 4 MHz and ultrasonic vibrations with a frequency of 1 MHz to 5 MHz are generated between the two treatment probes 60a and 60b, and are applied to the body of the patient (treatment area) (twin polar type, see Figure 5).As a result, the electrical signals with a frequency of 200 kHz to 4 MHz output from the wide area of ​​the two treatment probes 60a, 60b (probe heads 64a, 64b) and the ultrasonic vibrations with a frequency of 1 MHz to 5 MHz output from the wide area can heat the deep inside of the living body, remove old dead skin cells and dirt from the skin, and tighten the skin.

[0041] <6th Mode> When the practitioner turns on the power switch of the operating unit 8, switches the mode changeover switch to the sixth mode, and brings the treatment probes 60a, 60b into contact with the body of the patient (treatment area), the CPU of the electronic control unit 70 drives the treatment device 1 in accordance with the program stored in the ROM, specifically, the program for simultaneously performing EMS treatment and ultrasonic treatment. More specifically, the CPU of the electronic control unit 70 outputs a mode switching signal to switch the mode switching circuit 20 so that power via the DC / DC converter 12 is supplied to the first AC driving circuit 30 and the ultrasonic generating circuit 50, drives and controls the power control circuit 44 so that the power via the DC / DC converter 12 is power suitable for EMS treatment, drives and controls the voltage control circuit 32 and the FET driving circuit 36 ​​so that electrical signals of a frequency of 0.1 Hz to 100 kHz are output from the first and second output terminals T1, T2, and drives and controls the ultrasonic generating circuit 50 so that the power via the DC / DC converter 12 is converted into an electrical signal of a frequency (1 MHz to 5 MHz) suitable for ultrasonic treatment and output from the output terminals T3, T4. The FET drive circuit 36 ​​switches between a first state in which switching elements SW1 and SW4 are turned on and switching elements SW2 and SW3 are turned off, and a second state in which switching elements SW1 and SW4 are turned off and switching elements SW2 and SW3 are turned on, at a frequency of 0.1 Hz to 100 kHz. As a result, electrical signals with a frequency of 0.1 Hz to 100 kHz are output from output terminals T1 and T2, and electrical signals with a frequency of 1 MHz to 5 MHz are output from output terminals T3 and T4. That is, electrical stimulation based on the electrical signals with a frequency of 0.1 Hz to 100 kHz and ultrasonic vibration based on the electrical signals with a frequency of 1 MHz to 5 MHz are applied to the body (treatment area) of the patient via treatment probes 60a and 60b. In other words, an electrical signal with a frequency of 0.1 Hz to 100 kHz is alternated between the two treatment probes 60a, 60b, and ultrasonic vibrations with a frequency of 1 MHz to 5 MHz are generated and applied to the body of the patient (treatment area) (twin polar type, see Figure 5).As a result, the electrical signals with a frequency of 0.1 Hz to 100 kHz output from the wide area of ​​the two treatment probes 60a, 60b (probe heads 64a, 64b) and the ultrasonic vibrations with a frequency of 1 MHz to 5 MHz output from the wide area can provide electrical stimulation over a wide area, even to the muscle layer (inner muscle), removing old dead skin cells and dirt from the skin and tightening the skin.

[0042] <7th mode> When the practitioner turns on the power switch of the operation unit 8, switches the mode changeover switch to the seventh mode, and brings the treatment probes 60a, 60b into contact with the body (treatment area) of the patient, the CPU of the electronic control unit 70 drives the treatment device 1 in accordance with the program stored in the ROM, specifically, the program for simultaneously performing EMS treatment, high-frequency thermotherapy, and ultrasonic treatment. More specifically, the CPU of the electronic control unit 70 outputs a mode changeover signal to switch the mode changeover circuit 20 so that power via the DC / DC converter 12 is supplied to the first AC drive circuit 30, the second AC drive circuit 40, and the ultrasonic generation circuit 50, drives and controls the power control circuit 44 so that the power via the DC / DC converter 12 is power suitable for EMS treatment, and controls the voltage control circuit 32 and the FET drive circuit 44 so that an electrical signal with a frequency of 0.1 Hz to 100 kHz is output from the first and second output terminals T1, T2. The FET drive circuit 36 ​​drives and controls the power control circuit 44 so that the power via the DC / DC converter 12 is suitable for high-frequency hyperthermia treatment, drives and controls the AC control circuit 42 so that an electrical signal of a frequency of 200 kHz to 4 MHz is output from the first and second output terminals T1, T2, and drives and controls the ultrasound generating circuit 50 so that the power via the DC / DC converter 12 is converted into an electrical signal of a frequency (1 MHz to 5 MHz) suitable for ultrasound treatment and output from the output terminals T3, T4. The FET drive circuit 36 ​​switches between a first state in which the switching elements SW1, SW4 are turned on and the switching elements SW2, SW3 are turned off, and a second state in which the switching elements SW1, SW4 are turned off and the switching elements SW2, SW3 are turned on, at a frequency of 0.1 Hz to 100 kHz. As a result, an electrical signal in which an electrical signal with a frequency of 0.1 Hz to 100 kHz and an electrical signal with a frequency of 200 kHz to 4 MHz are superimposed is output from output terminals T1 and T2, and an electrical signal with a frequency of 1 MHz to 5 MHz is output from output terminals T3 and T4.That is, via the treatment probes 60a, 60b, electrical stimulation based on an electrical signal in which an electrical signal with a frequency of 0.1 Hz to 100 kHz and an electrical signal with a frequency of 200 kHz to 4 MHz are superimposed, and ultrasonic vibration based on an electrical signal with a frequency of 1 MHz to 5 MHz are applied to the body of the patient (treatment area). In other words, between the two treatment probes 60a, 60b, an electrical signal in which an electrical signal with a frequency of 1 Hz to 100 kHz and an electrical signal with a frequency of 200 kHz to 4 MHz are superimposed can be generated, and ultrasonic vibration with a frequency of 1 MHz to 5 MHz can be generated and applied to the body of the patient (treatment area) (twin polar type). As a result, the electrical signals (electrical signals superimposed with electrical signals of frequencies between 1 Hz and 100 kHz and electrical signals of frequencies between 200 kHz and 4 MHz) output from the wide areas of the two treatment probes 60a, 60b, and the ultrasonic vibrations (1 MHz to 5 MHz) output from a wide area, can heat the deep inside of the living body over a wide area, while providing electrical stimulation down to the muscle layer (inner muscle), and can also remove old dead skin cells and dirt from the skin and tighten the skin.

[0043] According to the treatment device 1 of the present embodiment described above, the output parts 47a, 47b of the second AC drive circuit 40 are connected between the diodes D1, D2 and the output terminals T1, T2, respectively, more specifically, to the connection parts Cp2, Cp3 between the cathodes of the diodes D1, D2 and the drains of the switching elements SW1, SW2. In other words, the second AC drive circuit 40 is arranged on the higher side (higher potential side) than the first AC drive circuit 30, the output parts 47a, 47b of the second AC drive circuit 40 are bridged via the diodes D1, D2, and the connection part Cp1 between the voltage control circuit 32 and the electrode switching circuit 34 is arranged between the diodes D1, D2. Therefore, regardless of the frequency order (number of digits) of the electrical signal (electrical signal suitable for high-frequency thermal treatment) output from the second AC drive circuit 40, the electrical signal (electrical signal suitable for high-frequency thermal treatment) output from the second AC drive circuit 40 will not be short-circuited. That is, the electrical signal output from the second AC drive circuit 40 (electrical signal suitable for high-frequency thermal treatment) will not short-circuit not only when the frequency order (number of digits) of the electrical signal output from the second AC drive circuit 40 (electrical signal suitable for high-frequency thermal treatment) deviates from the frequency order (number of digits) of the electrical signal output from the first AC drive circuit 30 (electrical signal suitable for EMS treatment) (for example, when the frequency of the electrical signal suitable for EMS treatment is 0.1 Hz and the frequency of the electrical signal suitable for high-frequency thermal treatment is 4 MHz), but also when the frequency order (number of digits) of the electrical signal output from the second AC drive circuit 40 (electrical signal suitable for high-frequency thermal treatment) is close to the frequency order (number of digits) of the electrical signal output from the first AC drive circuit 30 (electrical signal suitable for EMS treatment) (for example, when the frequency of the electrical signal suitable for EMS treatment is 100 kHz and the frequency of the electrical signal suitable for high-frequency thermal treatment is 200 kHz). This allows the electrical signal suitable for EMS treatment and the electrical signal suitable for high-frequency thermal treatment to be superimposed on each other without interfering with each other and output from the output terminals T1 and T2.Furthermore, since the orientation of the two diodes D1 and D2 is simply specified and positioned, the electrical signal output from the first AC drive circuit 30 (an electrical signal suitable for EMS treatment) and the electrical signal output from the second AC drive circuit 40 (an electrical signal suitable for high-frequency thermal treatment) can be superimposed, and a circuit can be easily realized in which a short circuit does not occur in the electrical signal output from the second AC drive circuit 40 (an electrical signal suitable for high-frequency thermal treatment).

[0044] In this embodiment, a pair of treatment probes 60a, 60b is used, but this is not limited thereto. For example, as shown in Fig. 6, a modified treatment instrument 100 may be used, which includes a treatment probe 60a and a treatment glove 160. The modified treatment instrument 100 has the same configuration as the treatment instrument 1 of the embodiment, except that the treatment probe 60b is replaced with a treatment glove 160 and the output terminal T4 and the power line L4 are omitted. Therefore, the same components as those of the treatment instrument 1 of this embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

[0045] The treatment glove 160 is made of a conductive fiber material mixed with silver, copper, etc. so that the electrical resistance is 1 kΩ or less. By using the treatment glove 160 as a conductor, treatment can be performed while fitting it to the shape of the treatment area. This allows for detailed and efficient treatment. The treatment device 100 of the modified example also has the same effects as the treatment device 1 of the embodiment, for example, in each mode, an electric signal (an electric signal with a frequency of 0.1 Hz to 100 kHz suitable for EMS treatment or an electric signal with a frequency of 200 kHz to 4 MHz suitable for high-frequency thermal treatment) or an ultrasonic vibration (a vibration with a frequency of 1 MHz to 5 MHz) can be generated between the treatment probe 60a and the treatment glove 160 and applied to the body (treatment area) of the treatment recipient (twin polar, see FIG. 7), and when the frequency order (number of digits) of the electric signal (electric signal suitable for high-frequency thermal treatment) output from the second AC drive circuit 40 deviates from the frequency order (number of digits) of the electric signal (electric signal suitable for EMS treatment) output from the first AC drive circuit 30 (for example, when the frequency of the electric signal suitable for EMS treatment is 0 This can provide the advantageous effect that the electrical signal suitable for EMS treatment and the electrical signal suitable for high-frequency thermal treatment can be well superimposed and output from output terminals T1 and T2 without causing interference between them, not only when the frequency order (number of digits) of the electrical signal (electrical signal suitable for high-frequency thermal treatment) output from the second AC driving circuit 40 is close to the frequency order (number of digits) of the electrical signal (electrical signal suitable for high-frequency thermal treatment) output from the first AC driving circuit 30 (for example, when the frequency of the electrical signal suitable for EMS treatment is 100 kHz and the frequency of the electrical signal suitable for high-frequency thermal treatment is 200 kHz).

[0046] In the present embodiment and the above-described modified example, the electrical signal output from the first AC drive circuit 30 is an electrical signal suitable for EMS treatment. However, this is not limiting. For example, the electrical signal output from the first AC drive circuit 30 may be an electrical signal suitable for electroporation (EP) treatment, which injects cosmetic ingredients into a living body, or an electrical signal suitable for iontophoresis treatment, which also injects cosmetic ingredients into a living body. In this case, the voltage control circuit 32 and the FET drive circuit 36 ​​can be driven and controlled so that the power transmitted through the DC / DC converter 12 has a voltage and frequency suitable for EP treatment or iontophoresis treatment. Note that a dedicated drive circuit for EP treatment or iontophoresis treatment may be provided separately from the first AC drive circuit 30 to perform EP treatment or iontophoresis treatment. In this case, the dedicated drive circuit for EP treatment or iontophoresis treatment can be connected to the DC / DC converter 12 via a mode switching circuit.

[0047] In the present embodiment and the above-described modified example, the configuration includes a pair of treatment probes 60a, 60b, or the configuration includes the treatment probe 60a and the treatment glove 160, but this is not limiting. For example, the configuration may include the treatment probe 60a and a conductive pad, a pair of treatment gloves, or the configuration may include the treatment glove 160 and a conductive pad.

[0048] This embodiment shows an example of a mode for carrying out the present invention. Therefore, the present invention is not limited to the configuration of this embodiment. The correspondence between each component of this embodiment and each component of the present invention is shown below.

[0049] <Additional Notes> In view of the above-mentioned gist of the invention, the treatment device 1 according to the present invention can be configured in the following aspects. (Aspect 1) "A treatment device having first and second electrodes that can come into contact with a living body, and applying electrical stimulation based on power supplied from a power source to the living body via the first and second electrodes, first and second output terminals to which the first and second electrodes are connected; a first AC drive circuit including a first input unit to which power from the power supply is input, and a first conversion unit connected to the first input unit and the first and second output terminals and capable of converting the power input to the first input unit into a first electrical signal of a first frequency and outputting the first electrical signal; a first restricting portion disposed between the first input portion and the first output terminal to allow a current to flow from the first input portion to the first output terminal, while restricting a current to flow from the first output terminal to the first input portion; a second restricting portion disposed between the first input portion and the second output terminal to allow a current to flow from the first input portion to the second output terminal, while restricting a current to flow from the second output terminal to the first input portion; a second AC drive circuit including a second input unit to which power from the power supply is input, a second conversion unit connected to the second input unit and capable of converting the power input to the second input unit into a second electrical signal of a second frequency higher than the first frequency and outputting the second electrical signal, and first and second output units connected to the second conversion unit, wherein the first output unit is connected between the first restriction unit and the first output terminal, and the second output unit is connected between the second restriction unit and the second output terminal; A treatment device equipped with (Aspect 2) "The first regulation portion is a first diode having a first anode and a first cathode, the first anode is connected to the first input; the first cathode is connected to the first output section; the second regulating portion is a second diode having a second anode and a second cathode, the second anode is connected to the first input; The second cathode is connected to the second output section. The treatment device according to the first aspect. (Aspect 3) "The first conversion unit includes a first switching element having one end connected to the first output unit and the other end connected to the first output terminal, a second switching element having one end connected to the second output unit and the other end connected to the second output terminal, a third switching element having one end connected to the first output terminal and the other end grounded, a fourth switching element having one end connected to the second output terminal and the other end grounded, and a switching circuit capable of driving the first to fourth switching elements, The second conversion unit includes a transformer having a primary winding connected to the second input unit and a secondary winding connected to the first and second output units and isolated from the primary winding. The treatment device according to aspect 1 or 2. (Aspect 4) "Further comprising a control unit capable of controlling the first conversion unit, The control unit controls the first conversion unit to alternately and repeatedly execute a first state in which the first and fourth switching elements are turned on and the second and third switching elements are turned off, and a second state in which the first and fourth switching elements are turned off and the second and third switching elements are turned on, in a first mode in which power from the power source is supplied to the first input unit. The treatment device according to aspect 3. (Aspect 5) "The control unit controls the first conversion unit to turn on the first and third switching elements and turn off the second and fourth switching elements in a second mode in which power from the power source is supplied only to the second input unit." The treatment device according to aspect 4. (Aspect 6) "The first frequency is in a frequency band of 0.1 Hz to 100 kHz, The second frequency is in the frequency band of 200 kHz to 4 MHz. The treatment device according to any one of the above aspects 1 to 5. [Industrial Applicability]

[0050] The treatment device of the present invention has the effect of effectively superimposing and outputting two electrical signals regardless of the order (number of digits) of the two frequencies, and is therefore widely applicable to devices that provide electrical stimulation to living organisms to train and strengthen muscles, or to devices that provide warmth from deep within the living organism. [Explanation of symbols]

[0051] 1 Treatment device (treatment device) 2. Device body 4 AC / DC adapters 6 AC power supply (power supply) 8 Control section 10 Display panel 12 DC / DC converters 20 Mode switching circuit 30 First AC drive circuit 32 Voltage control circuit 34 Electrode switching circuit (first conversion unit) 36 FET drive circuit 40 Second AC drive circuit 42 AC control circuit (second conversion unit) 44 Power control circuit 46 Transformer (second conversion section, transformer) 46a Primary coil (primary winding) 46b Secondary coil (secondary winding) 47a Output section (first output section) 47b Output section (second output section) 50 Ultrasonic generator circuit 52a Ultrasonic vibrator 52b Ultrasonic transducer 60a Treatment probe (first electrode) 60b Treatment probe (second electrode) 62a main body 62b main body 64a probe head 64b probe head 66a Grip Hand 66b Grip Hand 70 Electronic control unit (control section) 640a Inner surface 640b Inner surface 642a Bottom 642b Bottom T1 output terminal (first output terminal) T2 output terminal (second output terminal) T3 output terminal T4 output terminal SW1 Switching element (first switching element) SW2 switching element (third switching element) SW3 switching element (second switching element) SW4 switching element (fourth switching element) D1 Diode (first regulator) D2 Diode (second regulator) Cp1 connection part (first input part) Cp2 connection Cp3 connection Ip1 input section Ip2 input section (second input section) L1 Power Line L2 Power Line L3 Power Line L4 Power Line

Claims

1. A treatment device having first and second electrodes that can come into contact with a living body, and applying electrical stimulation based on power supplied from a power source to the living body via the first and second electrodes, first and second output terminals to which the first and second electrodes are connected; a first AC drive circuit including: a first input unit to which power from the power supply is input; and a first conversion unit connected to the first input unit and the first and second output terminals and capable of converting the power input to the first input unit into a first electrical signal of a first frequency and outputting the first electrical signal; a first restricting portion disposed between the first input portion and the first output terminal to allow a current to flow from the first input portion to the first output terminal, while restricting a current to flow from the first output terminal to the first input portion; a second restricting portion disposed between the first input portion and the second output terminal to permit a current to flow from the first input portion to the second output terminal, while restricting a current to flow from the second output terminal to the first input portion; a second AC drive circuit including a second input unit to which power from the power supply is input, a second conversion unit connected to the second input unit and capable of converting the power input to the second input unit into a second electrical signal having a second frequency higher than the first frequency and outputting the second electrical signal, and first and second output units connected to the second conversion unit, wherein the first output unit is connected between the first restriction unit and the first output terminal, and the second output unit is connected between the second restriction unit and the second output terminal; A treatment device equipped with the above.

2. the first restriction portion is a first diode having a first anode and a first cathode, the first anode is connected to the first input; the first cathode is connected to the first output; the second restriction portion is a second diode having a second anode and a second cathode, the second anode is connected to the first input; The second cathode is connected to the second output. The treatment device according to claim 1.

3. the first conversion unit includes a first switching element having one end connected to the first output unit and the other end connected to the first output terminal, a second switching element having one end connected to the second output unit and the other end connected to the second output terminal, a third switching element having one end connected to the first output terminal and the other end grounded, a fourth switching element having one end connected to the second output terminal and the other end grounded, and a switching circuit capable of driving the first to fourth switching elements, The second conversion unit includes a transformer having a primary winding connected to the second input unit and a secondary winding connected to the first and second output units and isolated from the primary winding. The treatment device according to claim 1 or 2.

4. Further, a control unit capable of controlling the first conversion unit is provided, The control unit controls the first conversion unit to alternately and repeatedly execute a first state in which the first and fourth switching elements are turned on and the second and third switching elements are turned off, and a second state in which the first and fourth switching elements are turned off and the second and third switching elements are turned on, in a first mode in which power from the power source is supplied to the first input unit. The treatment device according to claim 3.

5. The control unit controls the first conversion unit to turn on the first and third switching elements and turn off the second and fourth switching elements in a second mode in which power from the power source is supplied only to the second input unit. The treatment device according to claim 4.

6. the first frequency is in a frequency band of 0.1 Hz to 100 kHz; The second frequency is in the frequency band of 200 kHz to 4 MHz. The treatment device according to claim 1 or 2.

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