Apparatus and method for monopolar and bipolar current application according to skin depth in which repeated needle insertion operations are performed

Abstract

The present disclosure may include: an electrode unit including a plurality of needle-type electrodes that repeatedly perform insertion and withdrawal operations into and out of the skin; a drug injection unit for injecting a drug into the skin; an energy supply unit for selectively applying, to the plurality of electrodes, a first high-frequency current of a monopolar type and a second high-frequency current of a bipolar type; a transport unit for moving the electrode unit so that the plurality of electrodes reach different target depths in the skin through repeated insertion and withdrawal operations at the same position; and a processor that, when the plurality of electrodes reach the different target depths through repeated insertion and withdrawal operations, controls the energy supply unit to apply, to the plurality of electrodes, the first high-frequency current and the second high-frequency current at current intensities corresponding to the different target depths reached, and controls the drug injection unit to inject the drug at the different target depths.

Description

Device and method for applying monopolar and bipolar currents according to skin depth for performing repeated needle insertion movements

[0001] The present disclosure relates to a monopolar and bipolar current application device and method. More particularly, the present disclosure relates to a monopolar and bipolar current application device and method for performing a skin depth-dependent needle repetitive insertion operation.

[0002] Generally, skin care devices for wrinkle removal, skin elasticity restoration, and sebum removal include those that transmit ultrasound to skin tissue (HIFU type), those that transmit high-frequency waves to skin tissue (RF type), and those that irradiate laser light to skin tissue (Optical type).

[0003] A device that delivers high frequency waves to skin tissue repeatedly penetrates the deep layer of the skin (e.g., the dermal layer) of the skin (e.g., the face) with an RF needle electrode that moves back and forth in a vertical direction, and uses the heat generated by the high frequency to remove damaged collagen, elastic fibers, etc. from the deep layer of the skin at the target point and promote new formation.

[0004] Furthermore, these skin care devices improve skin pigmentation, acne scars, and wrinkles.

[0005] That is, by applying various energies to the target area of ​​the skin to intentionally cause wounds, the skin area is regenerated by stimulating the collagen in the dermis layer to induce collagen regeneration.

[0006] However, conventional skin care devices were unable to deliver abundant or efficient electrical energy to a specific depth of the skin.

[0007] Therefore, conventional skin care devices, when irradiating with ultrasound, cannot accurately irradiate abundant electric energy or efficient electric energy, and thus the accuracy of the ultrasound irradiation was low.

[0008] In addition, conventional skin care devices have limitations in shortening the ultrasound irradiation time and maximizing the ultrasound irradiation effect because doctors must carefully perform the ultrasound irradiation.

[0009] The purpose of the embodiment disclosed in the present disclosure is to provide an apparatus capable of accurately irradiating abundant electric energy or efficient electric energy during ultrasonic irradiation, thereby increasing the accuracy of ultrasonic irradiation.

[0010] In addition, the embodiment disclosed in the present disclosure aims to provide something that can shorten the ultrasonic irradiation time and maximize the ultrasonic irradiation effect.

[0011] In addition, the embodiment disclosed in the present disclosure aims to provide a device that can maximize the optimal skin improvement effect of the monopolar type and the bipolar type while preventing the occurrence of skin burns in advance.

[0012] In addition, the embodiment disclosed in the present disclosure aims to provide a method for gradually inserting a needle deeper, thereby reducing pain caused by needle insertion.

[0013] Additionally, the embodiments disclosed in the present disclosure aim to provide a method for gradually injecting a drug to a deeper location.

[0014] The problems to be solved by the present disclosure are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0015] According to an aspect of the present disclosure for achieving the above-described technical problem, a device for applying monopolar and bipolar currents according to skin depth, which performs a needle-type repetitive insertion operation, may include: an electrode unit including a plurality of needle-type electrodes that repetitively perform insertion and withdrawal operations into the skin; a drug injection unit that injects a drug into the skin; an energy supply unit that selectively applies a monopolar-type first high-frequency current and a bipolar-type second high-frequency current to the plurality of electrodes; a transfer unit that moves the electrode unit so that the plurality of electrodes reach different target depths into the skin through repetitive performance of the insertion and withdrawal operations at the same position; and a processor that controls the energy supply unit so that, when the plurality of electrodes reach the different target depths through repetitive performance of the insertion and withdrawal operations, the first high-frequency current and the second high-frequency current are respectively applied to the plurality of electrodes at respective current intensities corresponding to the different target depths reached, and controls the drug injection unit so that the drug is injected into the different target depths.

[0016] In addition, the processor may be characterized in that when the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the energy supply unit is controlled to apply the first high-frequency current to the plurality of electrodes at a current intensity corresponding to the first depth, and when the plurality of electrodes perform the insertion operation for the second time and the target depth is a second depth deeper than the preset first depth, the energy supply unit is controlled to apply the second high-frequency current to the plurality of electrodes at a current intensity corresponding to the second depth.

[0017] In addition, the processor may be characterized in that, when the plurality of electrodes perform the insertion operation a third time and the target depth is a third depth deeper than the preset second depth, the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth by controlling the energy supply unit.

[0018] In addition, the processor may be characterized in that, when the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the energy supply unit is controlled to apply the second high-frequency current to the plurality of electrodes at a current intensity corresponding to the first depth, and when the plurality of electrodes perform the insertion operation for the second time and the target depth is a second depth deeper than the preset first depth, the energy supply unit is controlled to apply the first high-frequency current to the plurality of electrodes at a current intensity corresponding to the second depth.

[0019] In addition, the processor may be characterized in that, when the plurality of electrodes perform the insertion operation a third time and the target depth is a third depth deeper than the preset second depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth.

[0020] In addition, a method performed by a device for applying monopolar and bipolar currents according to skin depth for performing needle repetitive insertion operations according to another aspect of the present disclosure may include the steps of: moving an electrode unit of the device through a transfer unit of the device so that a plurality of electrodes reach different target depths in the skin through repeated performance of the insertion operation and the withdrawal operation at the same position; determining, by a processor of the device, whether the plurality of electrodes have reached the different target depths through repeated performance of the insertion operation and the withdrawal operation; and controlling, by the processor, an energy supply unit of the device so that the first high-frequency current and the second high-frequency current are respectively applied to the plurality of electrodes at respective current intensities corresponding to the different target depths reached when the plurality of electrodes have respectively reached the different target depths through repeated performance of the insertion operation and the withdrawal operation, and controlling a drug injection unit of the device so that the drug is injected at the different target depths.

[0021] In addition, the control step may be characterized in that the energy supply unit is controlled by the processor so that when the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the first depth, and when the plurality of electrodes perform the insertion operation for the second time and the target depth is a second depth deeper than the preset first depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the second depth.

[0022] In addition, the control step may be characterized in that, when the plurality of electrodes perform the insertion operation a third time and the target depth is a third depth deeper than the preset second depth, the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth.

[0023] In addition, the control step may be characterized in that the energy supply unit is controlled by the processor so that when the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the first depth, and when the plurality of electrodes perform the insertion operation for the second time and the target depth is a second depth deeper than the preset first depth, the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the second depth.

[0024] In addition, the control step may be characterized in that, when the plurality of electrodes perform the insertion operation a third time and the target depth is a third depth deeper than the preset second depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth.

[0025] According to the above-described problem solving means of the present disclosure, when performing ultrasonic irradiation, it provides an effect of increasing the accuracy of ultrasonic irradiation by accurately irradiating abundant electric energy or efficient electric energy.

[0026] In addition, the above-described problem solving means of the present disclosure provides an effect of shortening the ultrasonic irradiation time and maximizing the ultrasonic irradiation effect.

[0027] In addition, the aforementioned problem solving means of the present disclosure provides an effect of improving the optimal skin condition of the monopolar type and the bipolar type while preventing the occurrence of skin burns in advance.

[0028] In addition, the aforementioned problem solving means of the present disclosure provides an effect of reducing pain caused by needle insertion by implementing a method of gradually inserting the needle deeper.

[0029] In addition, the aforementioned problem solving means of the present disclosure provides the effect of gradually injecting the drug to a deeper location.

[0030] The effects of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

[0031] FIG. 1 is a diagram showing the configuration of a monopolar and bipolar current application device for performing a needle repetitive insertion operation according to the present disclosure at different skin depths.

[0032] FIG. 2 is a drawing showing an example of a process in which a plurality of electrodes repeatedly perform insertion and removal operations at the same position by movement of the transfer unit of FIG. 1.

[0033] Fig. 3 is a drawing showing a plurality of needle-type electrode structures arranged in the electrode portion of Fig. 1.

[0034] FIG. 4 is a drawing showing an example of a process of applying a first high-frequency current of a monopolar type to a plurality of needle-type electrodes of FIG. 3.

[0035] FIG. 5 is a drawing showing an example of a process of applying a second high-frequency current of a bipolar type to a plurality of needle-type electrodes of FIG. 3.

[0036] FIG. 6 is a flowchart illustrating a method of applying monopolar and bipolar currents according to skin depth for performing a needle repetitive insertion operation according to the present disclosure.

[0037] FIGS. 7 to 10 are drawings showing examples of a process for controlling the application of a first high-frequency current, a second high-frequency current, and a first high-frequency current to a plurality of electrodes through each insertion operation in the control step of FIG. 6.

[0038] FIGS. 11 to 14 are drawings showing examples of a process for controlling the application of a second high-frequency current, a first high-frequency current, and a second high-frequency current to a plurality of electrodes through each insertion operation in the control step of FIG. 6.

[0039] Throughout this disclosure, the same reference numerals denote the same components. This disclosure does not describe all elements of the embodiments, and any content that is common in the technical field to which this disclosure pertains or that overlaps between embodiments is omitted. The terms "part, module, element, block" used in the specification may be implemented in software or hardware, and depending on the embodiments, multiple "parts, modules, elements, blocks" may be implemented as a single component, or a single "part, module, element, block" may include multiple components.

[0040] Throughout the specification, when a part is said to be "connected" to another part, this includes not only direct connection but also indirect connection, and indirect connection includes connection via a wireless communication network.

[0041] Additionally, when a part is said to "include" a component, this does not mean that it excludes other components, but rather that it may include other components, unless otherwise specifically stated.

[0042] Throughout the specification, when we say that an element is "on" another element, this includes not only cases where the element is in contact with the other element, but also cases where another element exists between the two elements.

[0043] The terms first, second, etc. are used to distinguish one component from another, and the components are not limited by the aforementioned terms.

[0044] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0045] The identification codes for each step are used for convenience of explanation and do not describe the order of each step. Each step may be performed in a different order than specified unless the context clearly indicates a specific order.

[0046] The operating principle and embodiments of the present disclosure are described below with reference to the attached drawings.

[0047] The monopolar and bipolar current application devices according to the skin depth during needle insertion of the present disclosure are used to increase the temperature of the target area electromagnetically energized beneath the skin surface through the microneedle to a level where tissue heating occurs.

[0048] In the present specification, the control unit of the monopolar and bipolar current application device for performing the needle repetitive insertion operation according to the present disclosure according to skin depth includes various devices that can perform computational processing and provide results to the user. For example, the control unit of the monopolar and bipolar current application device for performing the needle repetitive insertion operation according to the present disclosure according to skin depth may include a computer, a server device, and a portable terminal, or may be in the form of any one of them.

[0049] Here, the computer may include, for example, a notebook, desktop, laptop, tablet PC, slate PC, etc. equipped with a web browser.

[0050] A server device is a server that processes information by communicating with external devices, and may include an application server, a computing server, a database server, a file server, a mail server, a proxy server, and a web server.

[0051] A portable terminal is, for example, a wireless communication device that ensures portability and mobility, and may include all kinds of handheld-based wireless communication devices such as PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access), WiBro (Wireless Broadband Internet) terminals, smart phones, etc., and wearable devices such as watches, rings, bracelets, anklets, necklaces, glasses, contact lenses, or head-mounted devices (HMD).

[0052] A device for applying monopolar and bipolar currents according to skin depth, which performs a needle repetitive insertion operation according to the present disclosure, controls an energy supply unit so that a first high-frequency current of the monopolar type and a second high-frequency current of the bipolar type are applied to the plurality of electrodes at respective current intensities corresponding to the different target depths reached when a plurality of electrodes have reached different target depths through repeated performance of insertion and withdrawal operations, and controls a drug injection unit so that a drug is injected to different target depths. At this time, the first high-frequency current of the monopolar type and the second high-frequency current of the bipolar type each have an intensity that increases as the target depth deepens, but the intensities may be different from each other.

[0053] Below, we will examine in detail the monopolar and bipolar current application devices for different skin depths that perform repeated needle insertion movements.

[0054] Fig. 1 is a diagram illustrating the configuration of a monopolar and bipolar current application device for performing repeated needle insertion operations according to the present disclosure at different skin depths. Fig. 2 is a diagram illustrating an example of a process in which a plurality of electrodes repeatedly perform insertion and withdrawal operations at the same location by moving the transport unit of Fig. 1.

[0055] Fig. 3 is a drawing showing a structure of a plurality of needle-type electrodes arranged in the electrode section of Fig. 1. Fig. 4 is a drawing showing an example of a process of applying a first high-frequency current of a monopolar type to a plurality of needle-type electrodes of Fig. 3. Fig. 5 is a drawing showing an example of a process of applying a second high-frequency current of a bipolar type to a plurality of needle-type electrodes of Fig. 3.

[0056] Referring to FIGS. 1 to 5, a monopolar and bipolar current application device (100) for performing a needle repetitive insertion operation according to skin depth may include an input unit (110), an electrode unit (120), an energy supply unit (130), a transfer unit (140), and a control unit (150).

[0057] The input unit (110) is for receiving target depth information within the skin from the user. When target depth information within the skin is input, the control unit (150) can control the operation of the device to correspond to the input target depth information within the skin. Here, the target depth information within the skin may be a target depth value within the dermis layer.

[0058] The input unit (110) may include hardware-type physical keys (e.g., buttons, dome switches, jog wheels, jog switches, etc. located on at least one of the front, rear, and side of the device) and software-type touch keys. For example, the touch keys may be formed of virtual keys, soft keys, or visual keys displayed on a touchscreen-type display unit through software processing, or may be formed of touch keys placed on a part other than the touchscreen. Meanwhile, the virtual keys or visual keys may have various forms and be displayed on the touchscreen, and may be formed of, for example, graphics, text, icons, videos, or a combination thereof.

[0059] The electrode unit (120) may include a plurality of needle-type electrodes (121) that repeatedly perform insertion and withdrawal movements within the skin (S). The plurality of needle-type electrodes (121) penetrate the deep part of the skin (S) (for example, the dermal layer) through repeated insertion movements, and use the heat generated by high frequency to remove damaged collagen, elastic fibers, etc. from the deep part of the target point and promote new formation.

[0060] As illustrated in FIG. 3, among the plurality of needle-type electrodes (121) in the electrode unit (120), a plurality of electrodes (121a) having a (+) polarity and a plurality of electrodes (121b) having a (-) polarity may be arranged in the form of a plurality of groups, and a plurality of electrodes (121b) having a (-) polarity and a plurality of electrodes (121a) having a (+) polarity may be arranged in the form of a plurality of groups. For example, a plurality of electrodes (121a) having a (+) polarity and a plurality of electrodes (121b) having a (-) polarity may be repeatedly arranged in the odd rows of the electrode unit (120), and a plurality of electrodes (121b) having a (-) polarity and a plurality of electrodes (121a) having a (+) polarity may be repeatedly arranged in the form of a plurality of groups, in the even rows of the electrode unit (120).

[0061] The energy supply unit (130) can selectively apply a first high-frequency current of a monopolar type and a second high-frequency current of a bipolar type to a plurality of electrodes (121). Here, the energy supply unit (130) can include a switching circuit for selectively applying the first high-frequency current of a monopolar type and the second high-frequency current of a bipolar type.

[0062] At this time, as illustrated in FIG. 4, the energy supply unit (130) can apply a first high-frequency current of the monopolar type to the plurality of electrodes (121a) of (+) polarity and the return pad (122) of (-) polarity among the plurality of electrodes (121). In order for the high-frequency current to flow to the skin (S), a current circuit must be formed. When the energy supply unit (130) applies the first high-frequency current of the monopolar type to the plurality of electrodes (121a) of (+) polarity and the return pad (122) of (-) polarity, the high-frequency energy is concentrated on the plurality of electrodes (121a) of (+) polarity, enabling deeper heat transfer than the bipolar type, thereby generating abundant deep heat. Here, the return pad (122) may be a pad for grounding.

[0063] In addition, as illustrated in FIG. 5, the energy supply unit (130) can apply a second high-frequency current of the bipolar type to a plurality of electrodes (121a) of (+) polarity and a plurality of electrodes (121b) of (-) polarity among the plurality of electrodes (121). When the energy supply unit (130) applies a second high-frequency current of the bipolar type to the plurality of electrodes (121a) of (+) polarity and the plurality of electrodes (121b) of (-) polarity, a current circuit is formed between the plurality of electrodes (121a) of (+) polarity and the plurality of electrodes (121b) of (-) polarity, so that excessive heat transfer can be prevented, and thus a selected high-frequency irradiation area can be concentrated.

[0064] The transfer unit (140) can move the electrode unit (120) so that multiple electrodes (121) can reach different target depths within the skin by repeatedly performing insertion and withdrawal operations at the same location. At this time, the transfer unit (140) can move the electrode unit (120) in a vertical direction.

[0065] The control unit (150) may be implemented with a memory (151) that stores data on an algorithm for controlling the operation of components within the device or a program that reproduces the algorithm, and at least one processor (152) that performs the aforementioned operation using the data stored in the memory (151). Here, the memory (151) and the processor (152) may each be implemented as separate chips. In addition, the memory (151) and the processor (152) may also be implemented as a single chip.

[0066] The memory (151) can store data supporting various functions of the device, programs for the operation of the control unit, input / output data, and a plurality of application programs (or applications) run on the device, data for the operation of the device, and commands. At least some of these application programs can be downloaded from an external server via wireless communication.

[0067] The memory (151) may include at least one type of storage medium among a flash memory type, a hard disk type, an SSD (Solid State Disk type), an SDD (Silicon Disk Drive type), a multimedia card micro type, a card type memory (e.g., SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. In addition, the memory (151) may be a database that is separate from the device but is connected by wire or wirelessly.

[0068] The memory (151) can store depth information for the skin layer and data related to the repeated needle insertion operation. The processor (152) can control the operation related to the repeated needle insertion operation.

[0069] The processor (152) can control the energy supply unit (130) so that, when the plurality of electrodes (121) reach different target depths in the skin layer through repeated insertion and withdrawal operations, a first high-frequency current of a monopolar type and a second high-frequency current of a bipolar type are applied to the plurality of electrodes (121) at respective current intensities corresponding to the different target depths reached. At this time, the first high-frequency current of the monopolar type and the second high-frequency current of the bipolar type increase in intensity as the target depth deepens, but the intensities may be different from each other. For example, as the target depth deepens, the intensity of the first high-frequency current may be greater or less than that of the second high-frequency current.

[0070] The processor (152) may control the energy supply unit (130) so that when the plurality of electrodes (121) perform the insertion operation for the first time and the target depth is a preset first depth, a first high-frequency current is applied to the plurality of electrodes (121) at a current intensity corresponding to the first depth. In addition, the processor (152) may control the energy supply unit (130) so that when the plurality of electrodes (121) perform the insertion operation for the second time and the target depth is a second depth deeper than the preset first depth, a second high-frequency current is applied to the plurality of electrodes (121) at a current intensity corresponding to the second depth. In addition, the processor (152) may control the energy supply unit (130) so that when the plurality of electrodes (121) perform the insertion operation for the third time and the target depth is a third depth deeper than the preset second depth, a first high-frequency current is applied to the plurality of electrodes (121) at a current intensity corresponding to the third depth.

[0071] The processor (152) may control the energy supply unit (130) so that when the plurality of electrodes (121) perform the insertion operation for the first time and the target depth is a preset first depth, a second high-frequency current is applied to the plurality of electrodes (121) at a current intensity corresponding to the first depth. In addition, the processor (152) may control the energy supply unit (130) so that when the plurality of electrodes (121) perform the insertion operation for the second time and the target depth is a second depth deeper than the preset first depth, a first high-frequency current is applied to the plurality of electrodes (121) at a current intensity corresponding to the second depth. In addition, the processor (152) may control the energy supply unit (130) so that when the plurality of electrodes (121) perform the insertion operation for the third time and the target depth is a third depth deeper than the preset second depth, a second high-frequency current is applied to the plurality of electrodes (121) at a current intensity corresponding to the third depth.

[0072] The processor (152) can control the drug injection unit (160) so that a drug for skin care is injected into different target depths of the skin layer when a plurality of electrodes (121) reach different target depths of the skin layer through repeated insertion and withdrawal operations.

[0073] Meanwhile, the processor (152) can control the display device to monitor the plurality of electrodes (121) inserted for each insertion depth as the plurality of electrodes (121) are inserted for each insertion depth in the skin layer. In addition, the processor (152) can measure the impedance for each current for each insertion depth as the plurality of electrodes (121) are inserted for each insertion depth in the skin layer, and can adjust and compensate the energy for each insertion depth based on the measured impedance.

[0074] FIG. 6 is a flowchart illustrating a method of applying monopolar and bipolar currents according to skin depth for performing a needle repetitive insertion operation according to the present disclosure.

[0075] Referring to FIG. 6, a method of applying monopolar and bipolar currents according to skin depth to perform a needle repetitive insertion operation may include an input step (S610), a movement step (S620), a judgment step (S630), and a control step (S640).

[0076] The input unit (110) can receive target depth information within the skin from the user (S610). Here, the target depth information within the skin may be a target depth value within the dermis layer (S610).

[0077] The transfer unit (140) can move the electrode unit (120) so that the target depths within the skin (S) are differently reached by repeatedly performing insertion and withdrawal operations at the same position of the plurality of electrodes (121) (S620). The processor (152) can control the transfer unit (140) to move the electrode unit (120) so that the target depths within the skin (S) are differently reached by repeatedly performing insertion and withdrawal operations at the same position of the plurality of electrodes (121) based on target depth information within the skin (S) input through the input unit (110). At this time, the plurality of electrodes (121) can penetrate to their respective target depths within the dermis layer.

[0078] The processor (152) can determine whether the plurality of electrodes (121) have reached different target depths through repeated insertion and withdrawal operations (S630). For example, the processor (152) can determine whether the plurality of electrodes (121) have reached their respective target depths within the dermal layer.

[0079] When the plurality of electrodes (121) reach different target depths through repeated insertion and withdrawal operations (S630), the processor (152) controls the energy supply unit (130) to apply a first high-frequency current of a monopolar type and a second high-frequency current of a bipolar type to the plurality of electrodes (121) at respective current intensities corresponding to the different target depths reached, and controls the drug injection unit (160) to inject a drug for skin care to the different target depths (S640). Here, the energy supply unit (130) can selectively apply the first high-frequency current of a monopolar type and the second high-frequency current of a bipolar type to the plurality of electrodes (121).

[0080] At this time, the first high-frequency current of the monopolar type and the second high-frequency current of the bipolar type increase in intensity as the target depth deepens, but the intensity may be different from each other. In addition, the drug injection unit (160) may inject a drug for skin care into each target depth within the dermis layer. For example, as the target depth deepens, the intensity of the first high-frequency current of the monopolar type may be greater than the intensity of the second high-frequency current of the bipolar type. That is, during the entire time that the plurality of electrodes (121) reach the target depth within the dermis layer, the intensities of the first high-frequency current of the monopolar type may be greater than the intensities of the second high-frequency current of the bipolar type. For another example, as the target depth deepens, the intensity of the second high-frequency current of the bipolar type may be greater than the intensity of the first high-frequency current of the monopolar type. That is, during the entire time that the plurality of electrodes (121) reach the target depth within the dermal layer, the intensities of the second high-frequency current of the bipolar type may be greater than the intensities of the first high-frequency current of the monopolar type.

[0081] FIGS. 7 to 10 are drawings showing examples of a process for controlling the application of a first high-frequency current, a second high-frequency current, and a first high-frequency current to a plurality of electrodes through each insertion operation in the control step of FIG. 6.

[0082] Referring to FIGS. 7 to 10, the processor (152) can determine whether the plurality of electrodes (121) perform an insertion operation for the first time and whether the target depth is a preset first depth (TH1) (S641a). If the target depth within the dermis layer (S1) is the preset first depth (TH1) (S641a), the processor (152) can control the energy supply unit (130) to apply a first high-frequency current of a monopolar type to the plurality of electrodes (121) at a current intensity corresponding to the first depth (TH1) (S642a). At this time, S2 may be a stratum corneum, S3 may be an epidermal layer, and S4 may be a subcutaneous tissue layer. In addition, the processor (152) can control the drug injection unit (160) to inject a drug for skin care at the first depth (TH1) within the dermis layer (S642a).

[0083] The processor (152) can determine whether the plurality of electrodes (121) perform the insertion operation for the second time and whether the target depth is a second depth (TH2) deeper than the first preset depth (TH1) (S643a). If the target depth within the dermis layer (S1) is the second preset depth (TH2) (S643a), the processor (152) can control the energy supply unit (130) to apply a second high-frequency current of a bipolar type to the plurality of electrodes (121) at a current intensity corresponding to the second depth (TH2) (S644a). In addition, the processor (152) can control the drug injection unit (160) to inject a drug for skin care into the second depth (TH2) within the dermis layer (S644a). At this time, the amount of drug injected at the second depth (TH2) may be less or more than the amount of drug injected at the first depth (TH1).

[0084] Meanwhile, the processor (152) can control a plurality of electrodes (121) to have a preset first rest period between the application times of the first high-frequency current of the monopolar type and the second high-frequency current of the bipolar type when the insertion operation is performed a second time and the target depth reaches a preset second depth (TH2). Here, the first rest period is a period in which the second high-frequency current of the bipolar type is not applied for a preset time, and the present disclosure can prevent the occurrence of skin burns in advance by having the first rest period, while maximizing the optimal skin improvement effect of the monopolar type and the bipolar type.

[0085] The processor (152) can determine whether the plurality of electrodes (121) perform the insertion operation for the third time and whether the target depth is a third depth (TH3) deeper than the preset second depth (TH2) (S645a). If the target depth within the dermal layer (S1) is the preset third depth (TH3) (S645a), the processor (152) can control the energy supply unit (130) to apply a first high-frequency current of a monopolar type to the plurality of electrodes (121) at a current intensity corresponding to the third depth (TH3) (S646a). At this time, the amount of drug injected at the third depth (TH3) may be less or more than the amount of drug injected at the second depth (TH2).

[0086] Meanwhile, the processor (152) can control a second pause section to be set between the application times of the second high-frequency current of the bipolar type and the first high-frequency current of the monopolar type when the plurality of electrodes (121) perform the insertion operation for the third time and the target depth reaches the preset third depth (TH3). Here, the second pause section is a section in which the first high-frequency current of the monopolar type is not applied for a preset time, and the present disclosure can prevent the occurrence of skin burns in advance by having the second pause section, while maximizing the optimal skin improvement effect of the bipolar type and the monopolar type.

[0087] FIGS. 11 to 14 are drawings showing examples of a process for controlling the application of a second high-frequency current, a first high-frequency current, and a second high-frequency current to a plurality of electrodes through each insertion operation in the control step of FIG. 6.

[0088] Referring to FIGS. 11 to 14, the processor (152) can determine whether the plurality of electrodes (121) perform the first insertion operation and the target depth is the preset first depth (TH1) (S641b). If the target depth within the dermal layer (S1) is the preset first depth (TH1) (S641b), the processor (152) can control the energy supply unit (130) to apply a second high-frequency current of a bipolar type to the plurality of electrodes (121) at a current intensity corresponding to the first depth (TH1) (S642a). At this time, S2 may be the stratum corneum, S3 may be the epidermal layer, and S4 may be the subcutaneous tissue layer. In addition, the control step (S642b) can control the drug injection unit (160) to inject a drug for skin care to the first depth (TH1) within the dermal layer through the processor (152).

[0089] The processor (152) can determine whether the plurality of electrodes (121) perform the insertion operation for the second time and whether the target depth is a second depth (TH2) deeper than the first preset depth (TH1) (S643b). If the target depth within the dermis layer (S1) is the second preset depth (TH2) (S643b), the processor (152) can control the energy supply unit (130) to apply a first high-frequency current of a monopolar type to the plurality of electrodes (121) at a current intensity corresponding to the second depth (TH2) (S644a). In addition, the processor (152) can control the drug injection unit (160) to inject a drug for skin care into the second depth (TH2) within the dermis layer (S644b). At this time, the amount of drug injected at the second depth (TH2) may be less or more than the amount of drug injected at the first depth (TH1).

[0090] Meanwhile, the processor (152) can control a preset third rest period to be provided between the application times of the second high-frequency current of the bipolar type and the first high-frequency current of the monopolar type when the plurality of electrodes (121) perform the insertion operation for the second time and the target depth reaches the preset second depth (TH2). Here, the third rest period is a period in which the first high-frequency current of the monopolar type is not applied for a preset time, and the present disclosure can prevent the occurrence of skin burns in advance by providing the third rest period, while maximizing the optimal skin improvement effect of the bipolar type and the monopolar type.

[0091] The processor (152) can determine whether the plurality of electrodes (121) perform the insertion operation for the third time and whether the target depth is a third depth (TH3) deeper than the preset second depth (TH2) (S645b). If the target depth within the dermal layer (S1) is the preset third depth (TH3) (S645b), the processor (152) can control the energy supply unit (130) to apply a second high-frequency current of a bipolar type to the plurality of electrodes (121) at a current intensity corresponding to the third depth (TH3) (S646b). At this time, the amount of drug injected at the third depth (TH3) may be less or more than the amount of drug injected at the second depth (TH2).

[0092] Meanwhile, the processor (152) can control a fourth pause section to be set between the application times of the first high-frequency current of the monopolar type and the second high-frequency current of the bipolar type when the plurality of electrodes (121) perform the insertion operation for the third time and the target depth reaches the preset third depth (TH3). Here, the fourth pause section is a section in which the second high-frequency current of the bipolar type is not applied for a preset time, and the present disclosure can prevent the occurrence of skin burns in advance by having the fourth pause section, while maximizing the optimal skin improvement effect of the monopolar type and the bipolar type.

[0093] At least one component may be added or deleted in accordance with the performance of the components illustrated in FIGS. 1 to 5, 8 to 10, and 12 to 14. Furthermore, it will be readily apparent to those skilled in the art that the relative positions of the components may be altered in accordance with the performance or structure of the system.

[0094] Although FIGS. 6, 7, and 11 describe the sequential execution of multiple steps, this is merely an example of the technical idea of ​​the present embodiment, and a person having ordinary skill in the art to which the present embodiment pertains can modify and apply various modifications and variations by changing the order described in FIGS. 6, 7, and 11 without departing from the essential characteristics of the present embodiment, or by executing one or more of the multiple steps in parallel. Therefore, FIGS. 6, 7, and 11 are not limited to a chronological order.

[0095] The disclosed embodiments have been described with reference to the attached drawings as described above. Those skilled in the art will understand that the present disclosure can be implemented in forms other than the disclosed embodiments without altering the technical spirit or essential features of the present disclosure. The disclosed embodiments are illustrative and should not be construed as limiting.

Claims

1. An electrode unit including a plurality of needle-type electrodes that repeatedly perform insertion and withdrawal movements into the skin; A drug injection unit for injecting a drug into the skin; An energy supply unit that selectively applies a first high-frequency current of a monopolar type and a second high-frequency current of a bipolar type to the plurality of electrodes; A transfer unit that moves the electrode unit so that the plurality of electrodes reach different target depths within the skin by repeatedly performing the insertion and removal operations at the same location; and A device for applying monopolar and bipolar currents according to skin depth, which performs repeated needle insertion operations, comprising a processor for controlling the energy supply unit so that the first high-frequency current and the second high-frequency current are applied to the plurality of electrodes at respective current intensities corresponding to the different target depths reached when the plurality of electrodes have reached the different target depths through repeated performance of the insertion operation and the withdrawal operation, and for controlling the drug injection unit so that the drug is injected at the different target depths.

2. In paragraph 1, The above processor, When the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the first depth, A device for applying monopolar and bipolar currents according to skin depth for performing a needle repetitive insertion operation, characterized in that when the plurality of electrodes perform the insertion operation a second time and the target depth is a second depth deeper than the preset first depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the second depth.

3. In paragraph 2, The above processor, A device for applying monopolar and bipolar currents according to skin depth for performing a needle repetitive insertion operation, characterized in that when the plurality of electrodes perform the insertion operation a third time and the target depth is a third depth deeper than the preset second depth, the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth.

4. In paragraph 1, The above processor, When the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the first depth, A monopolar and bipolar current application device for performing a needle repetitive insertion operation according to skin depth, characterized in that the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the second depth when the plurality of electrodes perform the insertion operation a second time and the target depth is a second depth deeper than the preset first depth.

5. In paragraph 4, The above processor, A device for applying monopolar and bipolar currents according to skin depth for performing a needle repetitive insertion operation, characterized in that when the plurality of electrodes perform the insertion operation a third time and the target depth is a third depth deeper than the preset second depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth.

6. A method performed by a monopolar and bipolar current application device according to skin depth performing a needle repetitive insertion motion, A step of moving the electrode portion of the device through the transfer portion of the device so that a plurality of electrodes reach different target depths within the skin through repeated insertion and withdrawal operations at the same location; A step of determining, by the processor of the device, whether the plurality of electrodes have reached the different target depths through repeated performance of the insertion operation and the extraction operation; and A method comprising: a step of controlling an energy supply unit of the device so that the first high-frequency current and the second high-frequency current are applied to the plurality of electrodes at respective current intensities corresponding to the different target depths reached by the processor when the plurality of electrodes have each reached the different target depths through repeated performance of the insertion operation and the extraction operation, and controlling a drug injection unit of the device so that the drug is injected to the different target depths; 7. In paragraph 6, The above control step is, By the processor, when the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the first depth, A method characterized in that, by the processor, the plurality of electrodes perform the insertion operation a second time, and when the target depth is a second depth deeper than the preset first depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the second depth.

8. In paragraph 7, The above control step is, A method characterized in that, when the plurality of electrodes perform the insertion operation a third time by the processor and the target depth is a third depth deeper than the preset second depth, the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth.

9. In paragraph 6, The above control step is, By the processor, when the plurality of electrodes perform the insertion operation for the first time and the target depth is a preset first depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the first depth, A method characterized in that, by the processor, the plurality of electrodes perform the insertion operation a second time, and when the target depth is a second depth deeper than the preset first depth, the energy supply unit is controlled so that the first high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the second depth.

10. In paragraph 9, The above control step is, A method characterized in that, when the plurality of electrodes perform the insertion operation a third time by the processor and the target depth is a third depth deeper than the preset second depth, the energy supply unit is controlled so that the second high-frequency current is applied to the plurality of electrodes at a current intensity corresponding to the third depth.

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