KR102356473B1 - Needle tip and skin caring device including needle tip - Google Patents

Abstract

A needle tip and a skin care device including the same are provided. The needle tip may include an RF needle unit that expands the surrounding skin around a target point on the skin surface to secure a drug injection path and injects the drug into the deep part of the skin.

Description

Needle tip and skin care device including same {NEEDLE TIP AND SKIN CARING DEVICE INCLUDING NEEDLE TIP}

The present invention relates to a needle tip capable of simultaneously delivering a drug and a radio frequency to the skin, and a skin care device including the same.

A skin care device for removing wrinkles, restoring skin elasticity, and removing sebum is being developed. This is because wrinkle-free, taut, thick, dense, and non-sagging skin makes a person more attractive and contributes to an attractive appearance.

There are several types of skin care devices, such as a method of delivering ultrasound to the skin tissue (HIFU type), a method of transmitting high-frequency waves to the skin tissue (RF type), and a method of irradiating laser light to the skin tissue (optical type). do.

The device of the method of delivering high frequency to the skin tissue repeatedly invades the deep part of the skin (for example, the derma layer) of the RF needle electrode that reciprocates in the vertical direction (for example, the face), and is generated by the high frequency It uses heat to remove damaged collagen, elastic fibers, etc. from the deep part of the skin at the target point and promotes new formation, furthermore, this skin care device improves skin pigmentation, acne marks and wrinkles.

In this case, by exposing the cutting edge of the single or plural RF needle electrodes and coating the remaining part with an insulating material, high-frequency waves can be delivered intensively to the deep part of the skin.

This skin care device is divided into a bipolar type in which a plurality of RF needle electrodes have two polarities, and a monopolar type in which a plurality of RF needle electrodes have one polarity and a ground electrode is separately provided. are separated

In the bipolar method, the high frequency applied from the RF needle electrode of the first polarity is refluxed to the RF needle electrode of the second polarity. Therefore, since the high frequency flows between the plurality of RF needle electrodes, it is possible to intensively apply the high frequency to a local range.

In the monopolar method, the high frequency applied from the RF needle electrode is refluxed to the ground electrode disposed at the non-target point (eg, etc.). Therefore, since the high frequency flows over a wide range, the high frequency may also affect the periphery of the target point.

On the other hand, a drug is applied to relieve pain caused by the RF needle electrode invasion into the deep skin, and to treat fine wounds.

However, a general skin care device has a problem in that an applicator for automatically applying a drug is not provided, or even if such an applicator is provided, the size of the hand piece is increased by this or the drug cannot be deeply injected into the invasive site.

Publication of Patent Publication No. 10-2017-0014482, 2017.02.08

An object of the present invention is to provide a needle tip and a skin care device including the same.

An object to be solved by the present invention is to provide a needle tip capable of simultaneously delivering a drug and a radio frequency to the skin, and a skin care device including the same, in consideration of user diversity, convenience, and reliability.

The problems to be solved by the present invention 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 following description.

A needle tip according to an embodiment of the present invention for solving the above-described problems, the RF needle unit for injecting the drug into the deep part of the skin by expanding the surrounding skin around a target point on the skin surface to secure a drug injection route; may include

In an embodiment of the present invention, the RF needle unit includes at least one or more RF needle units, and the at least one or more RF needle units are to be invaded into the deep part of the skin at a first invasive angle perpendicular to the target point. can

In one embodiment of the present invention, the at least one RF needle unit may reciprocate toward the target point and invade the deep part of the skin through the drug injection path to apply a frequency.

In one embodiment of the present invention, a drug injection needle unit that moves up and down at a first invasive angle perpendicular to the target point and invades the deep part of the skin through the drug injection path to inject the drug may be included. have.

In an embodiment of the present invention, the first invasive angle may have a smaller angle than the second invasive angle.

In one embodiment of the present invention, the at least one RF needle unit may be formed to be spaced apart from each other at the same distance around the drug injection needle unit.

In addition, the skin care device including a needle tip according to another embodiment of the present invention for solving the above-described problems is a skin care that performs drug injection at a target point on the skin surface using a needle tip for skin treatment It may include a plurality of RF needle units that invade the deep part of the skin and expand the surrounding skin of the target point to secure a drug injection path and inject the drug into the deep part of the skin.

In one embodiment of the present invention, the plurality of RF needle units may apply a high frequency by reciprocating up and down at a first invasive angle perpendicular to the target point.

In one embodiment of the present invention, the skin care device moves up and down at a second invasive angle different from the first invasive angle perpendicular to the target point to invade the deep part of the skin through the drug injection path. and a drug injection needle unit for injecting the drug, and the plurality of RF needle units may reciprocate toward the target point to secure the drug injection path of the drug injection needle unit.

In one embodiment of the present invention, in the skin care device, when the drug injection needle unit and the plurality of RF needle units are invaded into the deep part of the skin to secure the drug injection path to form an invasive area, the invasion Injection of the drug into the region and application of the high frequency may be performed simultaneously.

Other specific details of the invention are included in the detailed description and drawings.

According to the present invention, it is possible to maximize the skin care effect by simultaneously providing a drug and a radio frequency to the skin using a needle tip for skin treatment.

According to the present invention, by using at least one needle to secure a drug injection route by expanding the surrounding skin into which the drug is injected, the injection amount and the injection depth of the drug can be further improved.

According to the present invention, by using the RF needle tip that transmits high frequency to expand the surrounding skin where the drug is injected to secure the drug injection route, the high frequency is applied at the same time as the drug is injected to stretch the skin at the target point, so that the drug injection efficiency can be further improved.

According to the present invention, since the skin care device is portable, it is possible to increase the convenience and reliability of the skin care device by maximizing the skin care effect while increasing the user's convenience regardless of time and place.

Effects of the present invention 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 following description.

1 is a conceptual diagram for explaining a needle tip and a skin care device including the same according to an embodiment of the present invention.
FIG. 2 is a view for explaining the detailed configuration of the needle tip shown in FIG. 1 and a skin care device including the same.
3 is a view for explaining the handpiece shown in FIGS. 1 and 2 .
4 is a view for explaining the needle tip shown in FIGS. 1 and 2 .
5 is a view for explaining the operation of the needle tip shown in FIGS. 1 and 2 .
6 is a view for explaining the intrusion state of the needle unit according to an embodiment of the present invention in detail.
7 is a view for explaining a needle tip according to another embodiment of the present invention.
8 is a view for explaining the operation of the needle tip according to another embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully understand the scope of the present invention to those skilled in the art, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless specifically defined explicitly.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram for explaining a needle tip and a skin care device including the same according to an embodiment of the present invention, and FIG. 2 is a needle tip shown in FIG. 1 and a detailed configuration of a skin care device including the same. 3 is a view for explaining the handpiece shown in FIGS. 1 and 2, and FIG. b) is a view for explaining a handpiece according to another embodiment of the present invention. Figure 4 is a view for explaining the needle tip shown in Figures 1 and 2, Figure 4 (a) is a cross-sectional view shown to explain the needle tip 22 according to an embodiment of the present invention, Figure 4 (b) is a bottom view for explaining another embodiment of the present invention. Figure 5 is a view for explaining the operation of the needle tip shown in Figures 1 and 2, Figure 5 (a) is a view for explaining the state before the needle unit penetrated into the deep part of the skin, Figure 5 (b) ) is a diagram for explaining a state in which the needle unit has invaded the deep part of the skin. 6 is a view for explaining the intrusion state of the needle unit according to an embodiment of the present invention in detail.

As shown in FIGS. 1 and 2 , a needle tip and a skin care device 1 including the same according to an embodiment of the present invention include a body portion 10 and a handpiece 20 having a needle tip 22 . ), it may include a cable 30 for connecting the body portion 10 and the handpiece 20 .

Here, the skin care device 1 is an electronic device that can improve the skin by injecting drugs into the deep part (S) of the skin and simultaneously providing RF (Radio Frequency) to the deep part (S) of the skin. can be done In this case, the skin care device 1 may operate using an application program or application in the present disclosure, and such an application program may be downloaded from an external server through wireless communication.

According to the embodiment, the skin care device 1 may be portable. Accordingly, it is possible to provide diversity, convenience, and reliability of the user who operates the skin care device 1 or receives skin care using the same.

According to an embodiment, the main body 10 and the handpiece 20 may be synchronized in real time using a wireless communication network to transmit/receive data. The wireless communication network may support various long-distance communication methods.

The main body 10 may include a communication module 12 , a display module 14 , a storage module 16 , and a control module 18 .

The communication module 12 may transmit a control signal to the handpiece 20 .

Here, the control signal may be a signal for controlling the operation of the needle unit 222 to be described later in response to the user's individual skin condition. That is, the control signal moves back and forth in the vertical direction, that is, in the vertical direction at the target point (A) on the skin surface to invade the deep part (S) of the skin at a certain period so that the drug injection and radio frequency (RF) application can be simultaneously performed. The operation of the needle unit 2222 or the operation of the drug injection needle unit 2220 and the RF needle unit 2222 can be controlled. In this case, the predetermined cycle may include a driving cycle preset by an administrator including a user and a doctor who uses the skin care device 1 or a cycle set by a program for managing the operation mode of the skin care device 1 , However, the present invention is not limited thereto.

In addition, the control signal may include a signal in which the injection amount and the injection depth of the drug, the output amount of radio frequency (RF), etc. are adjusted.

Also, the control signal may include a power on/off signal of the skin care device 1 .

According to an embodiment, the control signal may include an operation mode or an operation mode of the skin care device 1 .

The display module 14 is a means for visually and audibly displaying the current operating state of the skin care device 1, and may output symbols, letters, numbers, etc. on the screen according to the operating state. The display module 14 may include a display, a lamp outputting color change or blinking, or a speaker outputting audio. For example, the display module 14 may graph and display the injection amount of the drug currently applied to the target point A, and the output amount or impedance of radio frequency (RF). Here, the target point A may be, for example, a part of the face, but is not limited thereto and may be a part of the user's body.

Also, the display module 14 may display an operation mode or an operation mode currently in progress by the skin care device 1 . In addition, the display module 14 may display biometric information, such as the deep skin (S) of the target point (A).

According to an embodiment, the display module 14 may be manufactured in the form of a panel to visually provide various information to a doctor or a user who performs a skin care procedure.

According to an embodiment, the display module 14 may be provided in the form of a touch screen, so that a doctor, user, or administrator may touch a menu appearing on the screen to control the operation of the skin care device 1 . .

The storage module 16 may store data transmitted and received through the communication module 110 and data supporting various functions of the skin care device 1 .

The storage module 16 may store a plurality of application programs (or applications) driven in the skin care device 1 , data for operation of the skin care device 1 , and commands. At least some of these application programs may be downloaded from an external server through wireless communication.

The control module 18 may generate a control signal for controlling the operation of the handpiece 20 by a manual operation of a doctor, a user, or an administrator.

Specifically, the control module 18 generates a control signal including a driving cycle and a driving mode in which the needle tip 22 penetrates into the deep part S of the skin according to the user's skin condition, By expanding the surrounding skin to secure the drug injection path (R), it is possible to control the driving of the handpiece 20 so as to apply a radio frequency (RF) at the same time as the drug injection.

That is, the control module 18 controls the driving of the drug injection needle unit 2220 and the RF needle unit 2222 to vertically move around the target point (A) on the skin surface, so that the driving mode, driving cycle, and drug The driving of the handpiece 20 is performed so that the drug injection and RF can be simultaneously provided at a certain period to the deep part of the skin (S) according to the conditions in which the injection amount, the injection depth of the drug, and the output amount of radio frequency (RF) are set. can be controlled

According to the embodiment, the control module 18 controls the RF needle unit 2222 to expand the surrounding skin of the target point (A) to secure the path of the drug injection needle unit 2220, but the deep part of the skin (S) It is possible to generate a control signal that only operates the drug injection.

According to the embodiment, the control module 18 controls the RF needle unit 2222 to expand the surrounding skin of the target point (A) to secure the path of the drug injection needle unit 2220, but the deep part of the skin (S) It is possible to generate an operating control signal for applying a high frequency (RF) to the.

According to the embodiment, the control module 18 controls the needle tip 22 having only the RF needle unit 2222 to expand the peripheral skin of the target point (A) to the deep part of the skin (S) the case 220 The drug injected into the chamber 2201 of the may be injected.

In this case, the control module 18 may visually and/or aurally display the control signal and the corresponding driving state of the handpiece 20 to the doctor, the user, and the manager through the display module 14 .

According to an embodiment, the control module 18 may generate a control signal for automatically controlling the driving of the handpiece 20 by an operation mode or an operation mode.

3 (a), the handpiece 20 is under the control of the control module 18, the needle tip 22 is brought into contact with the user's skin surface to inject drugs and apply high frequency (RF) to the target point (A). can be performed simultaneously. Here, the needle tip 22 may be provided at the end of the handpiece 20 on the other side connected to the cable 30 . At this time, the needle tip 22 may be installed in the end of the handpiece 20 so as to be replaceable in the form of a cartridge.

According to the embodiment, the handpiece 20 may be separated from the cable 30 and provided with only the needle tip 22 at the end of the handpiece 20 . For example, referring to FIG. 3B , the handpiece 20 may include a driving module 24 and a power supply module 26 .

The driving module 24 may control the needle unit 222 to reciprocate in a vertical direction using a control signal received from the control module 18 .

The power module 26 may supply DC power or AC power so that the RF needle unit 2222 included in the needle unit 222 supplies high frequency (RF) to the skin under the control of the driving module 24 .

According to an embodiment, the power module 26 may receive external power and internal power to supply power to each component included in the handpiece 20 . The power module 26 includes a battery (not shown), and the remaining amount of the battery can be visually checked. The battery can be charged by connecting the USB to 220V commercial power or a laptop computer or computer. In addition, the battery unit uses a 3.7V lithium-ion battery, which is the most economical and efficient secondary battery for mobile phones, so that it can be charged with a mobile phone battery charger. Alternatively, the battery may be a built-in battery or a replaceable battery.

As shown in FIG. 4 , the needle tip 22 may include a case 220 and a needle unit 222 .

The case 220 may be a member detachably mounted to the end of the handpiece 20 as a “stator”.

The needle unit 222 may be disposed in the inner space of the case 220 . The lower surface of the case 220 may be opened, and the lower end of the case 220 may be disposed on the skin surface of the target point (A).

The needle unit 222 may be disposed inside the case 220 . The needle unit 222 is a “mover (moving in the vertical direction)” that invades the skin deep part of the target point (A) at regular intervals in response to the control signal to inject drugs and apply radio frequency (RF) to the skin (S). may be absent.

Such a needle unit 222 may include a drug injection needle unit 2220 and an RF needle unit 2222 with reference to FIG. 4 (a).

In this embodiment, the needle unit 222 may penetrate 2-3 mm from the skin surface to apply drug injection and radio frequency (RF). However, the present invention is not limited thereto, and may be penetrated to a different depth depending on the length of the needle unit 222 or the skin condition of the user.

The drug injection needle unit 2220 is a needle for injecting a drug into the deep part (S) of the skin, and may be composed of at least one needle. Although one is disclosed in the present embodiment, the present invention is not limited thereto.

In this embodiment, although it has been shown that the tip of the drug injection needle unit 2220 has a blunt shape by infiltrating the deep part (S) of the skin, it is not limited thereto. For example, the tip of the needle unit 2220 is pointed, that is, it may have the same shape as the RF needle unit 2222 .

The RF needle unit 2222 is a needle for applying a radio frequency (RF) to the deep part (S) of the skin, and may be composed of at least one or more needles.

In this embodiment, the needle unit 222 is spaced apart at equal intervals around one drug injection needle unit 2220, and is configured such that four RF needle units 2222 in a circle surround it, and is provided in the handpiece 20. has been disclosed, but is not limited thereto. For example, as shown in Figure 4 (b), one or more needle units 222, that is, composed of six needle units 222, drug injection and radio frequency (RF) application to a large area of the skin surface. can be done simultaneously.

The needle unit 222 having such a structure may be mounted on the needle tip 22 to reciprocate in a vertical direction.

Specifically, the needle unit 222 may reciprocate in the vertical direction by the driving module 24 . That is, referring to FIGS. 5 and 6 , the needle unit 222 repeatedly and/or periodically invades the skin surface of the target point (A) by reciprocating movement in the vertical direction to the skin of the target point (A). It is possible to simultaneously provide drug injection and RF application in the deep part (S). Accordingly, it is possible to inject the drug into the deep part (S) of the skin, and it is possible to remove collagen, elastic fibers, etc. damaged by thermal energy by radio frequency (RF).

More specifically, referring to Fig. 5 (a), the needle unit 222 before the penetration into the deep part (S) of the skin, the drug injection needle unit 2220 and the RF needle unit 2222 located inside the case 220 ) may be located at different angles on the skin surface around the target point (A). Specifically, the drug injection needle unit 2220 is positioned at a first invasive angle (V1) with the skin surface, and the RF needle unit 2222 has a second invasive angle (V2) different from the skin surface and the first invasive angle (V1). can be located as In this embodiment, the first invasion angle V1 starts at 90 degrees perpendicular to the target point A, and the second invasion angle V2 is different from the first invasion angle V1, that is, the first invasion angle. Although disclosed at an angle smaller than (V1), the present invention is not limited thereto. At this time, the RF needle unit 2222 may be formed at the same second invasive angle (V2), but is not limited thereto, and may each have a different second invasive angle (V2).

Next, in response to the control signal of the control module 18 in the operation mode, the drug injection needle unit 2220 and the RF needle unit 2222 reciprocate in the vertical direction around the target point (A) on the skin surface, It can be invaded into the deep part (S) of the For example, referring to FIG. 5( b ), the RF needle unit 2222 is invaded into the deep part of the skin (S) at a second invasive angle (V2) different from the first invasive angle (V1) to the target point (A) ) by extending the surrounding skin to secure the path of the drug injection needle unit (2220). That is, the RF needle unit 2222 moves from the target point (A) to the target movement point (A ') of the deep part of the skin (S) while expanding the surrounding skin of the target point (A) to the outside, and the drug injection needle unit ( 2220) of the drug injection route (R) can be secured.

In this way, the drug injection needle unit 2220 that has invaded the deep part (S) of the skin by securing the drug injection path (R) by the RF needle unit 2222 can inject the drug into the deeper part (S) of the skin. have. At the same time, the RF needle unit 2222 that secures the drug injection path (R) of the drug injection needle unit 2220 may apply a radio frequency (RF) to the deep part (S) of the skin. That is, as shown in FIG. 6 , the drug injection needle unit 2220 and the plurality of RF needle units 2222 are invaded into the deep part (S) of the skin to secure the drug injection path (R) to secure the invasive area (R) When this is formed, drug injection and radio frequency (RF) application to the invasive region R can be performed at the same time. At this time, the plurality of RF needle units 2222 may be positioned to be spaced apart from each other at the same distance (d1, d2) around the drug injection needle unit 2220.

Accordingly, the needle unit 22 can be stably penetrated into the deep part (S) of the skin of the target point (A), and the injection amount and depth of the drug are improved and the skin of the target point (A) is stretched. It is possible to improve the injection efficiency of the drug.

According to the embodiment, the handpiece 20 is included in the inner surface of the handpiece 20 in contact with the skin surface and includes a temperature sensor (not shown) for detecting a temperature change between the user's skin surface and the handpiece 20 . may include For example, by detecting the temperature rise between the needle tip 22 of the handpiece 20 and the skin surface, it is possible to prevent damage to the skin in advance due to the excessive temperature rise, through which doctors, users and administrators The skin care device 1 can be used safely.

7 is a view for explaining the needle tip according to another embodiment of the present invention, Figure 8 is a view for explaining the operation of the needle tip according to another embodiment of the present invention.

7, the needle tip 22 according to another embodiment of the present invention may include a case 220 having a chamber 2200 and a needle unit 222 having an RF needle unit 2222. have. That is, the needle unit 222 according to another embodiment of the present invention may not include the drug injection needle unit 2220.

The chamber 2200 may be formed at a lower portion of the case 220 in a vertical direction. It may be connected to the outside through a plurality of holes formed to correspond to the RF needle unit (2222). In this case, various fluids may be injected into the chamber 2200 . For example, a drug for improving skin or cooling water for alleviating skin rash and fever may be injected into the chamber 2200 , but the present invention is not limited thereto.

The RF needle unit 2222 may be positioned at a second invasive angle V2 smaller than 90° with the skin surface. In this embodiment, the RF needle unit 2222 may be configured in plurality, and may be formed at the same second invasive angle (V2) as the skin surface with respect to the target point (A). However, the present invention is not limited thereto, and the RF needle unit 2222 may be formed at a second invasive angle V2 that is different from the skin surface with respect to the target point (A).

Looking at the operation of the needle tip 22 having such a structure, the RF needle unit 2222 reciprocates in the vertical direction around the target point (A) on the skin surface in response to the control signal of the control module 18 in the operation mode. By moving, the drug injected into the chamber 2200 may be injected into the deep part S of the skin. That is, as shown in FIG. 8, the RF needle unit 2222 invades the deep part (S) of the skin at the second invasive angle (V2) and expands the surrounding skin of the target point (A) to the drug injection route ( R) can be obtained.

In this way, by securing the drug injection path (R) by the RF needle unit 2222, the drug injected into the chamber 2200 can be injected into the deeper part (S) of the skin. At the same time, the RF needle unit 2222 that secures the drug injection path (R) can apply a high frequency (RF) to the deep part (S) of the skin.

According to an embodiment, the RF needle unit 2222 may reciprocate in the vertical direction around the target point (A) to inject the drug applied to the skin surface into the deep part (S) of the skin.

The steps of a method or algorithm described in relation to an embodiment of the present invention may be implemented directly in hardware, as a software module executed by hardware, or by a combination thereof. A software module may include random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or this It may reside in any type of computer-readable recording medium well known in the art.

In the above, embodiments of the present invention have been described with reference to the accompanying drawings, but those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing the technical spirit or essential features thereof. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: skin care device
22: needle tip
222: needle unit
2220: drug injection needle unit
2222: RF needle unit

Claims (10)

A plurality of RF needle units for securing a drug injection path by expanding the skin deep part around the target point on the skin surface; and
It includes a drug injection needle unit that invades the skin deep through the drug injection route and injects a drug,
A plurality of the RF needle unit is arranged in a radial direction with its upper end spaced apart from the upper end of the drug injection needle unit, and each lower end is inclined so as to face the lower end of the drug injection needle unit, the target point It is provided so as to be reciprocally moved toward the target point and is invaded into the skin deep part at a second invasive angle inclined to the target point and expands the skin deep part in a radial direction to secure the drug injection path,
The drug injection needle unit is provided to be reciprocally movable toward the target point, and is penetrated deep into the skin at a first invasive angle perpendicular to the target point to inject the drug along the drug injection path,
The plurality of RF needle units are spaced apart from each other at equal intervals around the drug injection needle unit, and the lower ends of the plurality of RF needle units are respectively supported at the lower ends of the drug injection needle units,
When the plurality of RF needle units and the drug injection needle unit are invaded into the deep skin part, the plurality of the RF needle units and the drug injection needle unit incision together in the deep skin part to form a cone-shaped invasive area in the deep skin part needle tip. delete delete delete According to claim 1, The first angle of invasion has a smaller angle than the second angle of invasion, needle tip. delete A skin care device for injecting a drug to a target point on the skin surface using a needle tip for skin treatment; including, but
a plurality of RF needle units that invade the deep part of the skin and expand the surrounding skin of the target point to secure a drug injection path and inject the drug into the deep part of the skin; and
and a drug injection needle unit that invades the skin deep through the drug injection route and injects a drug,
A plurality of the RF needle unit is arranged in a radial direction with its upper end spaced apart from the upper end of the drug injection needle unit, and each lower end is inclined so as to face the lower end of the drug injection needle unit, the target point It is provided so as to be reciprocally moved toward the target point and is invaded into the skin deep part at a second invasive angle inclined to the target point and expands the skin deep part in a radial direction to secure the drug injection path,
The drug injection needle unit is provided to be reciprocally movable toward the target point, and penetrates into the deep part of the skin at a first invasive angle perpendicular to the target point to inject the drug along the drug injection path,
The plurality of RF needle units are spaced apart from each other at equal intervals around the drug injection needle unit, and the lower ends of the plurality of RF needle units are respectively supported at the lower ends of the drug injection needle units,
A plurality of the RF needle unit and the drug injection needle unit are invaded into the deep skin part, and the plurality of the RF needle unit and the drug injection needle unit cut the skin deep part together to form an invasive area in the form of a cone in the deep skin part , A skin care device comprising a needle tip. delete delete 8. The method of claim 7,
The skin care device,
When the drug injection needle unit and the plurality of RF needle units are invaded into the deep part of the skin to secure the drug injection path and the invasive area is formed, injecting the drug into the invasive area and applying the high frequency at the same time , A skin care device comprising a needle tip.

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