KR20190014845A - Medical Device Capable of RET High Frequency Treatment and CET High Frequency Treatment - Google Patents

Abstract

An electric therapy device having RET and CET high-frequency treatment function is disclosed. The high-frequency electric therapy device of the present invention can output a high-frequency signal in an RET mode and a CET mode using one circuit path. The high-frequency electric therapy device of the present invention can solve the mutual interference problem due to a dual circuit while realizing output of different current and voltage intensity through one current path corresponding to voltage and frequency according to the RET and CET method.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric therapy apparatus having a RET and CET high-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency electric therapy apparatus, and more particularly, to a high-frequency electric therapy apparatus for both a RET system and a CET system.

A high frequency electric therapy device (hereinafter referred to as a "high frequency treatment device") is divided into Capacitive Electric Transfer (CET) using a capacitive current conduction type and Resistive Electric Transfer (RET) using a resistive current conduction type according to the current conduction type .

CET is a method that is applied to most high-frequency electric therapy devices by contacting the anode with an insulated coated electrode (Electrode) and a grounded conductive plate (Plate). It is effective in managing the dermis and subcutaneous fat close to the skin tissue because the active heat is generated mainly by the ceramics in contact with the skin and the deep heat is generated. The CET system is a method of rubbing a skin area in a massage manner rather than fixing a ceramics to a specific site, and is effective in skin management for improving wrinkles and stretch marks, and is also known to have an effect of lipolysis due to deep heat. The CET method is safer than the RET described below even though the output is high in that the ceramic is insulated.

RET generates deep heat from the central tissue of the human body due to the electronic activity that occurs between the two insulated, uninsulated electrodes and the grounded conductive plate. Because RET uses relatively high frequency and uses non-insulated ceramics, it can deliver deep heat to a deep subcutaneous fat layer of a specific site instead of having a local effect, which is good for managing abdominal obesity. Local tissue within the human body can also be treated. However, its use is limited compared to the CET method.

Since the RET system uses two uninsulated ceramic electrodes, it has the advantage of accelerating the electronic activity from the central organization. However, since it is a high-power high-frequency system, additional structures are required to solve the safety problem, expensive. For this reason, CET is generally used as a versatile general purpose, but RET is used to treat certain areas such as abdominal obesity.

Conventional CET therapy devices and RET therapy devices have different frequencies and different outputs. Therefore, they have not been able to produce a combination product due to high frequency noise and heat generation problems. Therefore, it did not matter whether they were produced separately.

Nevertheless, since both the CET and RET methods are used differently, it may be necessary to use both for the purpose of high frequency therapy, and it is very convenient to support both modes in such cases.

On the other hand, since the high frequency electric therapy apparatus is a device using a high frequency, interference of noise other than high frequency used for treatment may be an important problem. Therefore, a conventional CET or RET electric therapy apparatus is a DC power supply, (Trans) was used and the weight was so heavy.

[Related Prior Art]

Korean Registered No. 10-1557619 (High Frequency Therapy Device)

The above invention relates to protecting the human body by applying an output voltage to a load electrode (ceramic) only when the load electrode contacts the user's body, and is not an invention related to a high-frequency electric therapy apparatus for both the CET mode and the RET mode.

An object of the present invention is to provide a high-frequency electric therapy apparatus for both a RET system and a CET system.

As described in the background art, the RET and CET methods have problems due to noise interference, heat generation, limitation of input voltage, mutual interference of each method, and the like due to the intensity difference between the used frequency and the output, It was designed individually and could only be produced as an individual product. It is an object of the present invention to solve such a problem and implement two schemes as a single circuit.

According to an aspect of the present invention, there is provided a high frequency electric therapy apparatus including an operation unit, a direct current power unit, a high frequency oscillation unit, a switching unit, and a current adjustment unit.

The operation unit receives a selection from the user to select either the RET mode or the CET mode, and controls the high frequency oscillation unit, the switching unit, and the current adjustment unit. The DC power section converts commercial AC power into DC power and provides it to the high frequency oscillation section.

The high frequency oscillating unit boosts the output of the DC power supply unit to the output voltage for the CET mode or the output voltage for the RET mode under the control of the operation unit and oscillates the boosted voltage at a predetermined high frequency.

The switching unit switches the output of the high frequency oscillating unit to one of a RET mode output terminal and a CET mode output terminal. The current adjusting unit is provided between the switching unit, the RET mode output terminal, and the CET mode output terminal, and adjusts the current output to the RET mode output terminal or the CET mode output terminal.

It is preferable that a current adjusting unit is provided between the switching unit and the RET mode output terminal so that when the RET mode is selected, a part of the output of the second step-up unit is divided to reduce the output current to a predetermined size.

According to the embodiment, the high-frequency oscillation unit is implemented by a two-stage voltage-up structure including a first voltage-up unit, a frequency setting unit, and a second voltage-up unit, so that the CET mode output voltage and the RET mode The output voltage can be adjusted. First, the first boosting unit boosts the output of the DC power supply unit to one of a plurality of first step voltages corresponding to the RET mode output voltage or the CET mode output voltage under the control of the operation unit. The frequency setting unit divides the output of the oscillator and outputs a predetermined high frequency oscillation signal to the second voltage step-up unit. The second boosting unit changes the output of the first boosting unit to the high frequency pulse by using the high frequency oscillation signal of the frequency setting unit and at the same time boosts to a predetermined magnification and finally boosts to the RET mode output voltage or the CET mode output voltage, do.

Additionally, the second boosting portion may be a circuit implemented with a MOSFET and a transformer. The MOSFET is switched to the high-frequency oscillation signal output from the frequency setting unit, and converts the output of the first booster unit 111 into the high-frequency pulse form and outputs it to the primary side of the transformer. The transformer boosts the output of the MOSFET at a predetermined magnification and outputs it to the switching unit.

According to an embodiment, the current regulator may be implemented as a high voltage capacitor arranged in parallel to the RET mode terminal.

According to another embodiment, the high frequency electric therapy apparatus of the present invention may further include a DC power source section for converting the commercial AC power into a DC operating voltage of the operation section to supply the operating power of the operation section.

The high frequency electric therapy apparatus of the present invention can output a high frequency signal in the RET mode and the CET mode using one circuit.

The high frequency electric therapy apparatus of the present invention can solve the mutual interference problem due to the dual circuit while realizing output of different current and voltage intensity through one current path corresponding to voltage and frequency according to the RET and CET system.

1 is a block diagram of a high-frequency electric therapy apparatus of the present invention,
Fig. 2 is a circuit diagram of the first boosting unit of the RF electric therapy apparatus of Fig. 1, and
3 is a circuit diagram of a second boosting unit of the high-frequency electric therapy apparatus of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings.

The high frequency electric therapy apparatus 100 according to the present invention includes a first DC power supply 101, a second DC power supply 103, an operation unit 105, a high frequency oscillation unit 110, a switching unit 121, a current adjustment unit 123, The RET output terminal 125 and the CET output terminal 127 can be output to output the RET type high frequency output signal and the CET type high frequency output signal through one circuit system. The high frequency frequency used in the present invention is used as one frequency (hereinafter, referred to as 'output frequency') without distinguishing between the CET system and the RET system, and is preferably 500 kHz widely used.

The high frequency electric therapy apparatus 100 according to the present invention may further include a power source for the operation unit 105 driven by a micom and a power source for high frequency output and may include a first direct current power source unit 101 and a second direct current power source unit 103 Thereby fundamentally interrupting the malfunction due to interference such as noise between the high-frequency output system and the operating unit 105. [ The first direct current power source 101 and the second direct current power source 103 use a switching mode power supply (SMPS), which can significantly reduce the weight of the first direct current power source 101 and the second direct current power source 103 compared to the conventional method using a transformer. The first direct current power source unit 101 and the second direct current power source unit 103 convert the commercial AC power source into the direct current power source and the first direct current power source unit 101 outputs the direct current voltage to the high frequency oscillation unit, Provides the operating voltage of the operating section 105.

The operation unit 105 includes input means (not shown) such as a plurality of buttons, dials, etc. to receive various control commands from a user and to control the high frequency electric therapy apparatus 100 of the present invention as a whole, (Not shown), and displays a guide for controlling the user, a control result, or an alarm. The input means (not shown) or the display means (not shown) may use various methods known in the art.

In the present invention, the operating unit 105 is provided with a selection command for selecting either (1) either the RET mode or the CET mode by using the input means (not shown), and (2) Command.

The operation unit 105 controls the high frequency oscillation unit 110 and the switching unit 121 according to a user's selection command to process a control command of the user. When the user selects the RET mode, a high-frequency signal is output only to the RET output terminal 125. When the CET mode is selected, a high-frequency signal is output to the CET output terminal 127 only. However, the high-frequency signals output to the RET output terminal 125 and the CET output terminal 127 are output through the same circuit system. The RET output terminal 125 can be connected to a cable to which an uninsulated ceramic electrode of the RET mode is coupled, and the CET output terminal 127 can be connected to a cable to which an insulated ceramic electrode of the CET mode is coupled.

The high frequency oscillating unit 110 outputs the output of the first DC power supply unit 101 to the final output voltage for the CET mode (hereinafter referred to as the 'CET mode output voltage') or the final output voltage for the RET mode And outputs the boosted output voltage to the RET output terminal 125 or the CET output terminal 127 by oscillating the boosted output voltage at a preset output frequency (high frequency).

As described above, in the present invention, the output rated voltage and the rated current in the RET mode and the CET mode are different, but the output frequency is the same. The RET mode is for RET-type high-frequency therapy as described in the background art, and the CET mode is for CET-type high-frequency treatment as described in the Background Art. Since the RET mode uses uninsulated ceramic as the electrode, the rated voltage of the RET mode output is adjusted to be relatively low compared to the CET mode. Since a plurality of voltage levels can be set in the RET mode and a plurality of voltage levels can be set even in the CET mode, the RET mode output voltage is set to approximately 120V to 400V, and the CET mode output voltage is set to approximately 300V to 600V .

In the case of the output frequency, the RET mode may be set to a relatively high frequency relative to the CET mode, but in the present invention, the output frequency of the RET mode and the output frequency of the CET mode are set to be the same. The fundamental difference between the CET method and the RET method is that the RET method uses a non-insulated ceramic as the electrode, so that it is not a problem that the RET mode and the CET mode use signals having the same output frequency.

≪ Embodiment of high-frequency oscillation portion &

A method of boosting the output voltage to the CET mode output voltage or the RET mode output voltage having a high voltage of a different magnitude in a state where the high frequency oscillating unit 110 has one circuit system may be variously implemented. However, in order to increase the stability of the overall system and to minimize the mutual interference due to noise generation / noise, the circuit is implemented by a two-stage voltage boosting structure, so that the first DC power source 101 One DC input can be converted into CET mode output voltage and RET mode output voltage of different sizes.

1, the high-frequency oscillating unit 110 includes a first voltage-up unit 111, a frequency setting unit 113, and a second voltage-up unit 115. The first voltage-up unit 111 and the second voltage- (115) implements a two-step boost.

In the present invention, the voltage boosting method in the RET mode and the CET mode are implemented in the same manner, thereby integrating the circuits that have conventionally been separately processed. When the target output voltage is present, the first boosting unit 111 first boosts the voltage to the first stage voltage corresponding to the output voltage, and the second boosting unit 115 boosts the first stage voltage to a predetermined magnification And finally boosts the output voltage. Since the magnification of the second boosting unit 115 is fixed, the step-up is performed at the same magnification without distinguishing between the RET mode and the CET mode. Therefore, the operation unit 105 controls the first voltage step-up unit 111 to output the first step voltage corresponding to the final output voltage.

(First stage voltage x multiplication factor of the second step-up portion = output voltage)

In the CET mode, the first boosting unit 111 boosts the output of the first DC power supply 101 to one of a plurality of 'first-stage voltages' under the control of the operating unit 105, 115 step up to the CET mode output voltage by boosting the 'first end voltage' output from the first voltage step-up unit 111 to a predetermined magnification. In the RET mode, the first boosting unit 111 boosts the DC output of the first DC power supply 101 to one of a plurality of first-stage voltages under the control of the operating unit 105, and the second boosting unit 115 Boosts the first step voltage of the first step-up unit 111 to the RET mode output voltage by stepping up to a predetermined magnification.

Since there are several voltage levels in each of the CET mode output voltage and the RET mode output voltage, the first stage voltage has several levels of voltage for the CET mode and the RET mode, and the CET mode and the RET mode have a partial overlap of the output voltage range. The first stage voltage of the RET mode partially overlaps with the first stage voltage of the RET mode. Therefore, under the control of the operation unit 105, the first boosting unit 111 outputs the DC output of the first DC power supply unit 101 as one of a plurality of first step voltages corresponding to the RET mode output voltage or the CET mode output voltage Boost.

The first booster 111 is connected to a PWM (Pulse Width Modulation) circuit (not shown) in order to convert the DC output of the first DC power supply 101 to one of a plurality of first voltages for the RET mode output voltage or the CET mode output voltage. And a high-frequency transformer to change the magnitude of the output voltage.

2, the first boosting unit 111 includes a PWM module 201, a first MOSFET Q1 and a second MOSFET Q2, a first transformer T1, first and second diodes D1 and D2, and an LPF (Low Pass Filter). As the output of the PWM module 201 alternately turns on the first MOSFET Q1 and the second MOSFET Q2, the first transformer T1 operates as an inverter, And a sine wave is output to the secondary side of the transformer T1. The output of the first transformer T1 is rectified while being passed through the first and second diodes D1 and D2 and the LPF to be converted into a first voltage and output to the second voltage booster 115.

The frequency setting unit 113 includes an oscillator 117 and a frequency divider 119 and outputs an oscillation signal of a preset output frequency (high frequency) to the second voltage booster 115. The frequency divider 119 divides the oscillation frequency of the oscillator 117 by a predetermined output frequency (high frequency) and outputs it to the second voltage booster 115.

The second booster 115 converts the first voltage output from the first booster 111 to a pulse having a predetermined output frequency, boosts the voltage to a predetermined magnification, and outputs the pulse to the switching unit 121.

For example, referring to FIG. 3, the second boosting unit 115 includes a third MOSFET Q3 and a second transformer T2. The high frequency oscillation signal output from the frequency setting unit 113 is input to the gate terminal of the third MOSFET Q3 to switch the third MOSFET Q3 to a predetermined output frequency (high frequency). The output of the first booster 111 is connected to the output of the third MOSFET Q3 and the output of the first booster 111 on the primary side of the second transformer T2 so that the output of the first booster 111 is interrupted at the output frequency, And is input to the primary side of the second transformer T2. The second transformer T2 boosts the high frequency pulses on the primary side to a predetermined magnification, thereby outputting the high frequency pulses boosted to the RET mode output voltage or the CET mode output voltage.

The switching unit 121 includes a relay or the like and outputs the output of the second booster 115 to the CET output terminal 127 or the RET output terminal 125 under the control of the operating unit 105.

On the other hand, when the RET mode is selected, it is necessary to distribute a part of the output of the second booster 115 to lower the output current as compared with the CET mode. Since there is no coating on ceramics in RET mode, current is relatively high in human body. Therefore, current is relatively small compared to CET mode in consideration of safety. Therefore, when RET mode is selected, the output current must be changed to a lower value than the CET mode output. Therefore, the current regulating unit 123 is disposed between the switching unit 121 and the RET output terminal 125.

The current adjusting unit 123 divides the output of the second step-up unit 115 input through the switching unit 121 and outputs a current of a predetermined magnitude to the RET output terminal 125. For example, the current regulator 123 may be implemented as a high-voltage capacitor arranged in parallel with the RET output terminal 125. The high voltage capacitor arranged in parallel to the RET output terminal 125 acts as a reactance of a certain magnitude with respect to the high frequency output to form a current distribution path.

Hereinafter, the operation of the high frequency electric therapy apparatus 100 of the present invention described above will be described. The electrical circuit paths of the RET mode and the CET mode are the same, and output signals of two modes are outputted through one circuit.

<RET mode>

When the user selects one of the plurality of voltage levels in the RET mode while selecting the 'RET mode' by operating the operation unit 105, the operation unit 105 sets the first boosting unit 111 as a predetermined parameter for the RET mode operation, So that the first step-up unit 111 outputs the first step voltage for the output voltage selected by the user. Further, the operation unit 105 controls the switching unit 121 to be connected to the current adjusting unit 123 according to the RET mode.

The frequency setting unit 113 outputs the output frequency (high frequency) oscillation signal to the second voltage booster 115 while the first voltage is output from the first booster 111 to the second booster 115 . The second boosting unit 115 converts the output of the first boosting unit 111 into a pulse by switching to the high frequency output from the frequency setting unit 113 and at the same time boosts the output voltage to the final output voltage via the second transformer T2. do. Therefore, the voltage output from the second booster 115 becomes the voltage selected by the user in the RET mode.

The switching unit 121 switches the output of the second step-up unit 115 to the current adjusting unit 123 according to the control of the operating unit 105 and is output through the RET output terminal 125 via the current adjusting unit 123 The RET mode output is outputted in a state in which the rated current is reduced by the current distribution circuit of the current adjustment section 123.

<CET mode>

When the user controls the operation unit 105 to select the CET mode output and selects one of the plurality of voltage levels in the CET mode, the operation unit 105 controls the first voltage step-up unit 111 as the set value for the CET mode operation So that the first step-up unit 111 outputs the first step voltage for the voltage level selected by the user. Further, the operation unit 105 controls the switching unit 121 to be connected to the CET output terminal 127. [

The frequency setting unit 113 outputs the output frequency (high frequency) signal to the second voltage booster 115 while the first voltage is output from the first booster 111 to the second booster 115. [ The second boosting unit 115 converts the output of the first boosting unit 111 to a high frequency output from the frequency setting unit 113 and converts the pulse to a final output voltage through the second transformer T2. Therefore, the voltage output from the second booster 115 becomes the voltage selected by the user in the CET mode.

The switching unit 121 outputs the output of the second booster 115 to the CET output terminal 127 without going through the power adjusting unit 123 under the control of the operating unit 105. [ Therefore, the CET mode output has a larger driving current than the RET mode output.

As described above, the first booster 111 and the switching unit 121 perform different operations according to the RET mode and the CET mode by the operation unit 105, but the remaining circuit parts distinguish the RET mode from the CET mode And operates in the same manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

Claims (5)

In a high-frequency electric therapy apparatus,
An operation unit for receiving a selection from the user to select either the RET mode or the CET mode;
A DC power supply unit for converting commercial AC power into DC power;
A high frequency oscillation unit boosting an output of the DC power supply unit to an output voltage for the CET mode or an output voltage for the RET mode under the control of the operation unit and oscillating the boosted voltage at a predetermined high frequency;
A switching unit for switching the output of the high frequency oscillation unit to one of a RET mode output terminal and a CET mode output terminal; And
And a current adjusting unit provided between the switching unit and the output terminal for the RET mode and the output terminal for the CET mode and adjusting a current output to the RET mode output terminal or the CET mode output terminal.
The method according to claim 1,
The high-
A first boosting unit for boosting the output of the DC power supply unit to one of a plurality of first step voltages corresponding to the RET mode output voltage or the CET mode output voltage under the control of the operation unit;
A frequency setting unit for dividing the output of the oscillator and outputting a predetermined high frequency oscillation signal; And
And a second boosting unit for changing the output of the first boosting unit to the high frequency pulse using the high frequency oscillation signal of the frequency setting unit and boosting the voltage to a predetermined magnification to ultimately increase the RET mode output voltage or the CET mode output voltage Wherein the CET mode output voltage and the RET mode output voltage of different sizes are adjusted through a single system in a two-stage voltage boosting structure.
3. The method of claim 2,
The second boosting unit
A MOSFET (Q3) which is switched to a high frequency oscillation signal output from the frequency setting unit and converts an output of the first voltage step-up unit into a high frequency pulse shape; And
And a transformer (T2) for stepping up the output of the MOSFET (Q3) at a preset magnification and outputting it to the switching unit.
The method according to claim 1,
The current adjusting unit
And a high-voltage capacitor disposed in parallel with the terminal for RET mode.
The method according to claim 1,
Further comprising: a DC power supply unit for converting the commercial AC power into a DC operating voltage of the operating unit to supply operating power of the operating unit.

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