KR20080095347A - Micro current device - Google Patents

Abstract

A micro-current apparatus is provided to change injured current of the damaged part into electric potential by reducing the injured current. A micro-current apparatus comprises: a power supply unit(100) steadily applying the power to the micro-current apparatus; a controller(200) making a control signal if the power source is applied from the power supply unit; an air pump(300) inhaling the air of the silicone cup inside an adhesion electrode part; an adhesion electrode part(400) measuring the impedance and authorizing the micro-current; an input control part(500) inputting the input value; an alternating frequency generating unit(600) generating the frequency waveform; a work ratio calculation unit(700) performing work ratio calculation by using the impedance; a voltage generation unit(800) generating and authorizing the reference voltage to the adhesion electrode part; a modulation circuit part(900) modulating the signal; and an output unit(980) receiving the signal modulated in the modulation circuit part and outputting it to the adhesion electrode part.

Description

Micro current device

1 is a simplified block diagram of the configuration of a microcurrent device according to an embodiment of the present invention.

2 is an explanatory diagram for explaining an adsorption electrode unit of a microcurrent device according to an embodiment of the present invention.

3 is an explanatory diagram for explaining a switching unit of a modulation circuit unit of a microcurrent device according to an embodiment of the present invention.

4 is a flowchart illustrating the operation of the microcurrent device according to the preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: power supply unit 200: control unit

300: air pump 400: adsorption electrode

410: air hose 420: silicon cup

430: electrode 500: input control unit

510: selection frequency input unit 520: output level control unit

530: timer 600: AC frequency generator

700: power calculation unit 800: voltage generation unit

900: modulation circuit unit 910: switching unit

912: first switching terminal 914: second switching terminal

916: switch 980: output unit

The present invention relates to a microcurrent device for reducing the damage current of the damaged skin, and more particularly to the microcurrent to reduce the damage current by applying to the damaged skin with a current in the forward and reverse direction by switching the waveform mixed with direct current and alternating current Relates to a device.

The skin's epidermis is evenly charged with keratinocyte cells with a voltage of about 30 to 80 mV, which acts as an electrical resistance to the ions, and the epidermis has a negative charge. In case of tissue damage due to various factors, the dislocation of the even skin is broken and the dislocation value is changed or dislocation is changed. That is, when the tissue is damaged, the permeability of ions due to the damage of the cell membrane changes in the damaged tissue, so that a current different from the current charged in the original cell membrane is abnormally charged, which is called an injured current. Damage currents cause abnormal ions in the cells, making it difficult for the cells to repair normally and causing pain causing substances. Therefore, if the damage current is reduced to the damage potential to make a steady state potential to eliminate the underlying cause of pain.

When measuring interpolar potential by attaching two or more electrodes to normal skin, the entire skin is evenly charged, so there is no or a weak DC component. However, when the potential of the damaged part is measured outside the skin, the DC component is generated because it is irregularly charged. If the charged DC component opposite to the measured value between the electrodes attached to the damaged part is charged, the skin has a large impedance against the direct current, so that the current does not penetrate deep into the tissue and causes unnecessary chemical reactions in the tissue, resulting in side effects.

Therefore, there is a need for a microcurrent device that reduces the damage current of a damaged portion without causing unnecessary chemical reactions and restores the skin potential normally.

Therefore, the present invention provides a microcurrent device that reduces the damage current of a damaged portion by flowing a mixed waveform of direct current and alternating current to the damaged portion by forward and reverse current through switching, without causing unnecessary chemical reactions.

An object of the present invention is to provide a microcurrent device that reduces the damage current of a damaged portion to a normal potential.

Another object of the present invention is to provide a microcurrent device that reduces damage current without unnecessary chemical reaction.

Hereinafter, the configuration and operation of a microcurrent device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a simplified block diagram of the configuration of a microcurrent device according to a preferred embodiment of the present invention, Figure 2 is an explanatory diagram for explaining the adsorption electrode portion of the microcurrent device according to a preferred embodiment of the present invention, 3 is an explanatory diagram for explaining a switching unit of a modulation circuit unit of a microcurrent device according to an exemplary embodiment of the present invention. The microcurrent device of the present invention includes a power supply unit 100, a control unit 200, and an air pump 300. ), The adsorption electrode 400, the input controller 500, the AC frequency generator 600, the power calculator 700, the voltage generator 800, the modulator circuit 900, the output unit 980 Include.

The power supply unit 100 includes a noise filter, a current limiting fuse, and a power supply to lower the AC power applied from the outside to a low voltage DC voltage and stably apply it to the microcurrent device.

The control unit 200, when power is applied from the power supply unit 100, the control signal by the input received from the input control unit 700, the air pump 300, the power calculation unit 500, the jamming frequency generator 800 To receive.

The air pump 300 receives a signal for adsorbing the adsorption electrode unit 400 to the skin from the control unit 200 and receives the air inside the silicon cup 420 from the air hose 410 of the adsorption electrode unit 400. Inhale. When receiving a signal to stop the operation of the air pump 300 from the control unit 200 to stop the operation of inhaling air from the air hose.

Adsorption electrode unit 400 is an electrode that is adsorbed on the surface of the skin to measure the impedance of the damaged portion and applies a current to the damaged portion to reduce the damage current, the air hose 410, the silicon cup 420, the electrode portion ( 430).

The air hose 410 is a passage through which the air moves so as to suck the air from the silicon cup 420 by the pumping from the air pump 300.

The silicon cup 420 is made of silicon and has a round cup shape recessed inwardly. When the air is sucked into the concave portion of the inside of the silicon cup 420 by the air pump 300, the silicon cup 420 is adsorbed to the skin. While the air pump 300 continues to suck the air inside the silicon cup 420, the silicon cup 420 is continuously adsorbed to the skin and the vacuum pressure is maintained by the air hose 410.

The electrode unit 430 is positioned on the inner surface of the silicon cup 420, and when the silicon cup 420 is adsorbed to the damaged part, the electrode part 430 is in close contact with the damaged skin. The electrode unit 430 measures the forward impedance value Z ₁ and the reverse impedance value Z ₂ of the skin contacted with the silver plated stainless steel or carbon electrode, and applies a current to the skin to reduce the damage current.

The input adjusting unit 500 is a place where a user inputs a desired input value, and includes a selection frequency input unit 510, an output level adjusting unit 520, and a timer 530.

The selection frequency input unit 510 reduces the resistance of the skin and at the same time selects a frequency of a suitable size of 10 ~ 300Hz that can be selected according to acute pain, and inputs the selection value to the controller. That is, the user can input a variable selection frequency according to the state of the damaged area.

The output level adjusting unit 520 selects a forward voltage value V ₁ for selecting an output level and inputs it to the controller.

The timer 530 inputs a time that the user wants to use the microcurrent device, and automatically stops the operation when the specified time is reached.

The AC frequency generator 600 generates a frequency waveform selected from the frequencies of 10 to 300 Hz by the selected frequency input unit 510. The frequency generated is in the form of a square wave alternating pulse. When the frequency selected by the user input from the selection frequency input unit 510 is input to the controller 200, the frequency is modulated by the control signal of the controller 200.

The power calculation unit 700 calculates the forward power using the forward impedance Z ₁ of the damaged skin measured by the electrode 430, and calculates the forward power and the reverse impedance measured by the electrode 430. Calculate the reverse voltage value (V ₂ ) using (Z ₂ ). The forward power calculation using the forward impedance is shown in [Equation 1].

(P: power, V ₁ : forward voltage value, Z ₁ : forward impedance)

The forward power factor is calculated using the forward voltage value V ₁ for selecting the output level selected by the output level controller 530 and the forward impedance Z ₁ measured by the electrode part 430. The reverse voltage value V ₂ is calculated using Equation 2 using the calculated forward power and the reverse impedance Z ₂ measured by the electrode unit 430.

(P: power, V ₂ : reverse voltage value, Z ₂ : reverse impedance)

In order to eliminate the energy accumulated in the body and to eliminate unnecessary chemical reactions, the power constant in the forward and reverse directions is the same. The power used in [Equation 2] uses the same value as the forward power calculated in [Equation 1]. In other words, by calculating the reverse voltage value (V ₂ ) to equal the forward power and the reverse power, the impedance is continuously measured from the electrode unit 430 to produce an appropriate output signal, and the forward power integration of the modulated output signal is performed. Calculate the sum of the values and the inverse uniform integral to be zero.

The voltage generator 800 generates and applies the reference voltage to the electrode unit 430 under the control of the controller connected through the power calculator 500. The reference voltage generated from the voltage generator 800 is applied to the electrode unit 430 as a forward reference voltage and a reverse reference voltage through the modulation circuit unit 900 and the output unit 980. The forward impedance Z ₁ and the reverse impedance Z ₂ can be measured by each reference voltage applied to the electrode unit.

The modulation circuit unit 900 forward and reverse DC according to the forward voltage value V ₁ and the reverse voltage value V ₂ calculated by the power calculation unit 700 on the AC frequency waveform received from the AC frequency generator 600. Include the offset potential and amplify at different rates. The modulator circuit 900 is modulated by the signals of the AC frequency generator 600 and the power calculator 700. This results in a waveform of a mixture of direct current and alternating current. The modulation circuit unit 900 includes a switching unit 910.

The switching unit 910 repeats the switching for flowing the current in the forward and reverse directions to converge the potential difference between each electrode to zero to reduce the damage current. The switching unit 910 includes a first switching terminal 912, a second switching terminal 914, and a switch 916. When the switch 916 of the switching unit 910 is connected to the first switching terminal 912, the voltage is increased to a maximum of 15V. At this time, the current conflicts with the impedance in the skin so that a relatively small current flows in the forward direction. When the switch 916 is connected to the second switching terminal 914, if a small voltage is applied according to the potential difference between the two electrodes, a relatively large current flows in the reverse direction because it does not conflict with the impedance inside the skin. As the switching of the first switching terminal 912 and the second switching terminal 914 is repeated, current flows alternately in the forward and reverse directions, thereby inducing the equality of the forward and reverse directions while eliminating the potential deviation of the damaged part. The damage current is reduced by converging the potential difference between the electrodes to zero. In addition, when the switching is repeated, the product of the forward and reverse voltages and currents equals the same power, thus eliminating energy in the body and eliminating unnecessary chemical reactions.

The output unit 980 receives the modulated signal from the modulation circuit unit 900 and outputs the signal to the electrode unit 430.

4 is a flowchart illustrating the operation of the microcurrent device according to the preferred embodiment of the present invention.

When the power of the microcurrent device is turned on, it is first determined whether the hardware is normal without abnormality (S100). If the hardware is not normal, an error message indicates that the hardware is not normal. If the hardware is normal, it is determined whether the adsorption electrode 430 is well attached to the desired position (S110). If the adsorption electrode 430 is not attached well, an error message indicating that the electrode is not properly attached is displayed (S120). If the adsorption electrode 430 is well attached to the desired position, a forward reference voltage and a reverse reference voltage are applied to the electrode 430 (S130).

The forward impedance Z ₁ is measured using the forward reference voltage applied to the electrode unit 430, and received by the power calculator 700 (S140). The reverse impedance Z ₂ is measured by the reverse reference voltage. This is received by the power calculation unit 700 (S150).

It is determined whether the frequency selected by the selection frequency input unit 510 is input to the control unit 200, and if the frequency is not selected and input to the selection frequency input unit 510, the apparatus waits for input. If the selected frequency is input, the AC frequency generator 600 oscillates a square wave AC of the selected frequency to generate an AC frequency (S170), and frequency modulates the AC frequency (S180).

Side from the output level control unit 520 received the input of the forward voltage (V ₁₎ Wait until the input is determined that the received input to (S190), the output level of the forward voltage (V _1), the forward voltage (V ₁₎ In accordance with the modulated amplitude of the output frequency (S200).

The forward power is calculated using the forward impedance Z ₁ and the forward voltage value V ₁ (S210), and the calculated forward waveform is output to the electrode unit 430 (S220).

After calculating the reverse voltage value (V ₂ ) using the reverse impedance (Z ₂ ) and the calculated forward power (S230), after modulating the amplitude of the frequency using the calculated reverse voltage value (V ₂ ) In operation S240, the reverse waveform is output to the electrode unit 430 (S250).

If it is determined that the time specified by the timer 530 has passed, turn off the power of the microcurrent device if the timer time is reached, and if the timer time has not yet reached, determine whether the adsorption electrode unit 400 is well attached to the desired position. Go ahead and execute the same steps as above (S260).

The present invention is not limited to the above described and illustrated in the drawings, and of course, more modifications and variations are possible to those skilled in the art within the scope of the following claims.

As described above, the microcurrent device of the present invention attaches an adsorption electrode to the skin of the damaged part and alternately switches forward and reverse voltages on the damaged part to measure forward impedance and reverse impedance. Using the measured forward and reverse impedance, the amplitude and frequency of the forward and reverse voltage are gradually modulated and applied to the electrode of the damaged part to reduce the damage current by converging the potential difference between the electrodes to zero. It helps to alleviate the pain of the damaged part by reducing the damage current of the damaged part and eliminating the root cause of the pain. Also, when repeating forward and reverse switching, the uniformity equal to the product of the voltage and current of the forward and reverse directions is equalized to eliminate the energy accumulated in the body. The reaction can be minimized.

Claims (8)

A power supply unit for stably applying power to the microcurrent device; A control unit which generates a control signal when power is applied from the power supply unit; An air pump for sucking air in the silicon cup of the adsorption electrode part by a control signal of the controller; An adsorption electrode part attached to a desired part by an operation of the air pump to measure an impedance of the attached part and apply a microcurrent; An input adjusting unit for inputting an input value desired by the user; An AC frequency generator for generating a frequency waveform selected by the input controller; A power calculation unit for calculating a power using the impedance measured by the adsorption electrode unit; A voltage generator which generates a reference voltage and applies it to the adsorption electrode part under control of the controller connected through the power calculator; A modulation circuit unit for modulating a signal by including the forward DC offset potential and the reverse DC offset potential calculated by the power calculator in the AC frequency waveform received from the AC frequency generator; And an output unit receiving the signal modulated by the modulation circuit unit and outputting the modulated signal to the adsorption electrode unit. The method of claim 1, The suction electrode unit, the air hose which is a passage for moving the air to suck the air by the pump quality from the air pump; A silicon cup made of a silicone material and recessed inwardly, wherein the silicon cup is sucked with air into the silicon by operation of the air pump; And the electrode unit measuring the forward impedance and the reverse impedance of the contacted part in contact with the skin when the silicon cup is adsorbed to the desired part and applying a current to the skin. The method of claim 1, The input control unit, a selection frequency input unit for selecting and inputting a frequency desired by the user; An output level adjusting unit for selecting and inputting a forward voltage value for selecting an output level; And a timer for inputting a specified time by inputting a time that the user wants to use the microcurrent device. The method of claim 1, The modulation circuit unit includes a switching unit for repeating the switching to flow the current in the forward and reverse direction to converge the potential difference between each electrode to a zero; micro-current device comprising a. The method of claim 4, wherein The switching unit may include: a first switching terminal through which a forward current flows when the switch is connected; A second switching terminal for flowing a reverse current when the switch is connected; And a switch for alternately repeatedly switching the first switching terminal and the second switching terminal. A first judging step of judging whether the hardware is normal without abnormality when the power is turned on, and displaying an error message if the hardware is not normal; A second determination step of determining whether the adsorption electrode part is well attached to a desired position if the first determination step hardware is normal, and indicating an error message indicating that the electrode is not properly attached if the adsorption electrode part is not well attached; A reference voltage generating step of applying a forward reference voltage and a reverse reference voltage to the adsorption electrode part if the adsorption electrode part is well attached to a desired position in the second determination step; A forward impedance measurement step of measuring a forward impedance Z ₁ by applying a forward reference voltage generated in the reference voltage generating step to an adsorption electrode unit; A reverse impedance measurement step of measuring a reverse impedance (Z ₂ ) by applying a reverse reference voltage generated in the reference voltage generating step to an adsorption electrode part; A selection frequency input determining step of determining whether a frequency selected by the selection frequency input unit is input to the controller, and waiting for input if a frequency is not selected and input to the selection frequency input unit; An AC frequency generating step of generating an AC frequency by receiving the selected frequency from the selection frequency input determining step by an AC frequency generating unit and oscillating a square wave AC of the selected frequency; A frequency modulation step of frequency modulating the signal received in the AC frequency generating step; An output level input determining step of determining whether the forward voltage value V ₁ has been input from the output level adjusting unit and waiting until the forward voltage value V ₁ is input; Forward voltage amplitude modulation wherein the output level is determined by receiving input of the forward voltage (V ₁₎ output level from the amplitude phase modulation of the output frequency according to the forward voltage (V _1); A forward power calculation step of calculating a forward power using the forward impedance (Z ₁ ) measured in the forward impedance measurement step and the forward voltage value (V ₁ ) received in the output level input determination step; A forward waveform output step of outputting a forward waveform calculated in the forward power calculation step to an adsorption electrode part; A reverse voltage value calculating step of calculating a reverse voltage value (V ₂ ) by using the reverse impedance (Z ₂ ) measured in the reverse impedance measurement step and the forward power factor calculated in the forward power factor calculation step; A reverse amplitude modulation step of modulating the amplitude of the frequency by using the reverse voltage value V ₂ calculated in the reverse voltage value calculating step; A reverse waveform output step of outputting a reverse waveform modulated in the reverse amplitude modulation step to an adsorption electrode part; Determining whether the time specified by the timer has elapsed, and if the timer time is reached, turning off the power of the microcurrent device, and if the timer time has not yet reached, going to the second judging step and executing the above step; Microcurrent application method comprising a. The method of claim 6, The forward power calculation step, A forward voltage value V ₁ input by the user and input at an output level; The forward current value measured in the forward impedance measurement step (Z ₁ ); The fine current applying method, characterized in that for calculating the constant power constant as a parameter. The method of claim 6, The reverse voltage value calculating step, A reverse power factor P having the same value as the forward power factor calculated in the forward power factor calculation step; And calculating a reverse voltage value (V ₂ ) using the reverse impedance value (Z ₂ ) measured in the reverse impedance measurement step as a parameter.

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