Skin treatment device equipped with a group of needles and its driving method

Abstract

A skin treatment device including a needle group and a driving method thereof are disclosed. The skin treatment device including the needle group according to an embodiment of the present invention includes a needle group including a plurality of needles, a first circuit board having a first needle group, which is a part of the needle group, fixed thereto and having a perforation formed therein, and a second circuit board to which a second needle group, which is the remaining part of the needle group, is fixed, and the second needle group is formed to protrude outside through the perforation of the first circuit board.

Description

Technical Field

[0002]

[0001] The present invention relates to a device effective for skin beautification or treatment of lesions, such as promoting the decomposition of skin adipose tissue or forming collagen by irradiating RF (Radio Frequency) high-frequency energy through a needle after forming a wound on the skin surface of a treatment site with the needle. More specifically, the present invention relates to a device and a driving method thereof that can further improve the treatment effect by densely arranging the intervals of needles in a limited space area.

Background Art

[0002] Korean Patent Registration No. 10-1300122 discloses a high-frequency treatment needle including a plurality of needles, a support plate supporting the plurality of needles on one surface, a base supporting the back surface of the support plate, a cover having through holes through which the plurality of needles penetrate formed in a side wall coupled to the base and facing one surface of the support plate, and an elastic body elastically supporting the support plate from a side wall of the cover. The elastic body includes a first elastic part elastically supporting a first region which is a partial region of the edge of the support plate, and a second elastic part elastically supporting a second region which is the edge region of the support plate excluding the first region. The plurality of needles are configured to be inserted into the skin in sequence according to the elastic force or form of the first elastic part and the second elastic part.

[0003] In addition, Korean Patent Registration No. 10-2117711 discloses an RF high-frequency device including a needle part that is inserted into the dermis layer and emits RF high-frequency energy, a needle insert part in which the needle parts form a column and are inserted through at least one or more in sequence and are continuously arranged in at least one or more in the front-rear direction to form a bundle, and a PCB (Printed Circuit Board) part provided above the bundle of the needle insert parts that are continuously arranged with each other to support the needle part and control the emission of RF high-frequency energy of the needle part.

[0004] Furthermore, Korean Patent Registration No. 10-2151923 discloses a needle laser treatment system comprising: an optical cable for providing a laser generated from a laser generator; a handpiece having multiple lenses inside for amplifying or expanding the laser provided from the optical cable; and a needle unit connected to the lower end of the handpiece, which transmits the laser through the handpiece and passes through the skin surface to directly irradiate the treatment site with the laser within the skin. The handpiece further comprises a focus lens into which the laser provided from the optical cable is incident; a convex lens for expanding or amplifying the laser emitted from the focus lens; a collimating lens for emitting the laser emitted from the convex lens parallel to the direction of travel; and an optical lens section connected to the needle unit, which has multiple optical lenses for expanding or amplifying the laser emitted from the collimating lens and transmitting it to the needle unit.

[0005] However, the needle unit in conventional skin treatment devices has a problem in that, due to the arrangement of the needles, which are connected to the electrical circuit on the PCB substrate to supply high-frequency energy and fixed to another support plate, a relatively wide area is formed where the spacing between needles (for example, a square formed by four adjacent needles) is wide, and the needles cannot penetrate this area.

[0006] Furthermore, the diameter of the needle fixing part used to secure the needles limits how closely the needles can be spaced within a limited area. This results in the needles being far apart when arranged, which reduces the effectiveness of the treatment. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Republic of Korea Patent Registration Number 10-1300122 [Patent Document 2] Republic of Korea Patent Registration Number 10-2117711 [Patent Document 3] Republic of Korea Patent Registration Number 10-2151923 [Overview of the project] [Problems that the invention aims to solve]

[0008] This invention was made to improve the above-mentioned problems and aims to provide a technical concept that enables the dense arrangement of needles within a limited cross-sectional area without the risk of short circuits.

[0009] Another object of the present invention is to provide a device that improves safety and ease of use in treatment, enabling effective treatment of the skin and effective breakdown and removal of subcutaneous adipose tissue. [Means for solving the problem]

[0010] A skin treatment device comprising a needle group according to an embodiment of the present invention for solving the above technical problems includes a needle group comprising a plurality of needles, a first circuit board on which a part of the needle group, a first needle group, is fixed and which has a perforated portion formed therein, and a second circuit board on which the remaining part of the needle group, a second needle group, is fixed, wherein the second needle group is formed to protrude to the outside through the perforated portion of the first circuit board.

[0011] The skin device comprising the needle group may further include a tip case having needle through-holes through which the first needle group and the second needle group pass and protrude to the outside.

[0012] The first needle group may be characterized by having a greater number of needles than the second needle group.

[0013] The first needle fixing portion corresponding to the first needle group may be arranged in a matrix having multiple rows and multiple columns, and the perforation portion may be formed in a spare space within the region formed by the matrix that does not overlap with the first needle fixing portion.

[0014] The perforation portion may be characterized by being formed inside the smallest square or smallest triangle in which the needle fixing portion included in the matrix can be formed.

[0015] The needles included in the second needle group may be characterized by being formed to be even longer in length than the needles included in the first needle group.

[0016] The first needle group and the second needle group may be formed such that their terminal points are located at the same depth when they are discharged to the maximum extent possible.

[0017] At least one of the needles included in the group of needles may be characterized by having a hollow portion to allow for drug delivery.

[0018] The skin treatment device comprising the needle group may further include a needle circuit board connected simultaneously with the first and second circuit boards so as to be able to supply RF high-frequency energy to the needles included in the first and second needle groups, and a bracket configured between the second circuit board and the needle circuit board to support the needle circuit board.

[0019] The skin treatment device equipped with the needle group may be characterized in that it is configured such that a circuit connection is made with the first circuit board and the second circuit board via an elastic spring, one end of which is supported by the needle circuit board, and a needle electrode rod inserted into the elastic spring.

[0020] The skin treatment device equipped with the needle group further includes a main circuit board connected to the needle circuit board and a vibration motor, and may also be provided with needle moving means that push at least the first circuit board and the second circuit board to pass the needles included in the first needle group and the second needle group through the needle through holes of the tip case.

[0021] According to another aspect, a skin treatment device including a needle group includes a first needle group and a second needle group. The first needle group is arranged in a matrix having a plurality of rows and a plurality of columns, and the second needle group may be formed inside the smallest square or the smallest triangle that can be formed by the needles included in the matrix.

[0022] According to another aspect of the present invention, the plurality of needles included in a skin treatment device including a plurality of needles include a first needle group arranged in a square matrix of m×n (m is a natural number of 2 or more and represents the number of rows, n is a natural number of 2 or more and represents the number of columns), and among the first needle group, needles arranged at (a, b) (where a is 1 or more (m−1)), b is 1 or more and (n−1) or less (columns)), needles arranged at (a, b + 1), needles arranged at (a + 1, b), and a second needle group arranged inside the smallest square formed by the needles arranged at (a + 1, b + 1).

[0023] According to another aspect of the present invention, among the plurality of needles included in a skin treatment device including a plurality of needles, the first needle group is arranged in a plurality of m (m is a natural number of 2 or more) rows. Among the m rows, any a (a is a natural number of 1 or more and (m−1) or less) rows have n (n is a natural number of 2 or more) needles arranged, the (a + 1) - th row has (n−1) needles arranged, and the needles arranged in the (a + 1) - th row are arranged so as to be located between the needles in the a - th row in the x - axis direction. Among the first needle group, a second needle group is included and arranged inside (for example, at the center) of the smallest triangle formed by the needles arranged at (a, b) (a is a natural number of 1 or more and (m−1) or less, b is a natural number of 1 or more and (n−1) or less), needles arranged at (a, b + 1), and needles arranged at (a + 1, b).

[0024] According to the technical idea of the present invention, a driving method of a skin treatment device including a needle group includes a step of receiving a treatment start signal by the skin treatment device including the needle group, and the skin treatment device including the needle group responding to the treatment start signal, a first needle group which is a part of the needle group including a plurality of needles being fixed, a step of moving a first circuit board having a perforation formed thereon and a second circuit board to which a second needle group which is the remaining part of the needle group is fixed in a traveling direction, wherein the second needle group may be formed to protrude to the outside through the perforation of the first circuit board.

Advantages of the Invention

[0025] According to the technical idea of the present invention, when a plurality of needles are arranged to penetrate the skin or stimulate the skin, the area where the needles do not reach is reduced, and there is an effect that the interval between the needles can be relatively closely arranged.

[0026] In particular, by fixing a part of the plurality of needles to the first circuit board and the remaining part to the second circuit board, the needles can be arranged more closely, and even if the interval between the needles is closely arranged in a limited space, there is an effect that it is possible to prevent a short circuit failure from occurring when fixing the circuit board and the needles by soldering.

[0027] Also, since the interval between the needles can be closely arranged, there is an advantage that the treatment site can be concentrated and effectively treated.

Brief Description of the Drawings

[0028] In order to more fully understand the drawings cited in the detailed description of the present invention, a brief description of each drawing is provided. [Figure 1] It is a perspective view of a skin treatment device including a needle group of the present invention. [Figure 2] It is a perspective view showing a state in which a body part of a skin treatment device including a needle group of the present invention is separated. [Figure 3] It is an exploded perspective view of a skin treatment device including a needle group of the present invention. [Figure 4] This is a cross-sectional view of a skin treatment device equipped with the needle group of the present invention. [Figure 5] This is an exploded perspective view of the body block, which constitutes the body portion of the skin treatment device equipped with the needle group of the present invention. [Figure 6] This is an exploded perspective view of a portion of a skin treatment device equipped with the needle group of the present invention. [Figure 7a] This is a plan view showing the needle fixing portion of the first circuit board of the present invention. [Figure 7b] This is a plan view showing the needle fixing portion of the first circuit board of the present invention. [Figure 8] This is a plan view showing the needle fixing portion of the second circuit board of the present invention. [Figure 9] This is a three-dimensional view showing an enlarged view of the chip case of the present invention. [Figure 10] This is a diagram illustrating the conventional needle arrangement method. [Figure 11] This figure illustrates the arrangement of needles according to an embodiment of the present invention. [Modes for carrying out the invention]

[0029] Because the present invention can be subjected to various transformations and has many different embodiments, specific embodiments are shown in detail in the drawings. However, this is not intended to limit the present invention to specific embodiments, but rather to be understood as encompassing all transformations, equivalents, and substitutes that fall within the spirit and technical scope of the present invention. When describing the present invention, if it is determined that a specific description of the relevant prior art would obscure the gist of the invention, such detailed description will be omitted.

[0030] Terms such as "First," "Second," etc., are used to describe various components, but the components themselves should not be limited by these terms. These terms are used solely to distinguish one component from another.

[0031] The terms used in this application are used solely to describe specific embodiments and are not intended to limit the invention. Unless otherwise clearly indicated in the context, singular expressions include plural expressions.

[0032] In this specification, terms such as “includes” or “having” are intended to indicate the presence of features, figures, steps, actions, components, parts, or combinations thereof as described in the specification, and should be understood not to preemptively exclude the possibility of the presence or addition of one or more other features, figures, steps, actions, components, parts, or combinations thereof.

[0033] The present invention will be described in detail below, focusing on embodiments of the present invention with reference to the attached drawings. The same reference numerals shown in each drawing refer to the same component.

[0034] The skin treatment device 1000 equipped with the needle group of the present invention may include a body portion 100 that also functions as a handle for a handpiece, and a needle unit 200 that is detachably coupled to the body portion, as shown in Figures 1 to 3.

[0035] The skin treatment device 1000, which includes a group of needles, may be a device used for cosmetic or therapeutic skin treatment by inserting multiple needles into the skin and then irradiating it with electrical energy. Depending on the embodiment, the skin treatment device 1000, which includes a group of needles, may be a device used to provide only a certain level of stimulation outside the skin without penetrating the skin and forming a wound.

[0036] The body section 100 includes a motor block 300 mounted on the upper side inside the body cases 501 and 502, and a body block 400 mounted on the lower side inside the body cases 501 and 502. RF high-frequency energy and electrical energy supplied to the skin treatment device 1000 are supplied via a cable 520 coupled to the upper side of the body cases 501 and 502, and for the sake of explanation, the connections of the circuit wiring are omitted. The motor block 300 may include a drive motor 301 and a shaft 302 that moves back and forth along the central axis direction by the power of the drive motor.

[0037] Next, the technical configuration and operation of the body block 400 of the present invention will be explained, mainly with reference to Figures 4 and 5.

[0038] The body block 400 may include a shaft support section 401, a front support section 402, a main circuit board support section 403, a main circuit board 410, and an LED (light-emitting diode) window 420.

[0039] The front support section 402 is connected to the shaft support section 401 and the main circuit board support section 403, and is fixed to the lower ends of the body cases 501 and 502. The main circuit board 410 and the LED window 420 are connected to the main circuit board support section 403.

[0040] The main circuit board 410 may be configured to supply RF high-frequency energy to the needle. The main circuit board 410 may also include connection pins 428 that are electrically connected to a circuit board to which the needle is fixed when the needle unit 200 is coupled to the body portion 100, and may include a vibration motor 425 that generates vibration in the body portion 100.

[0041] The vibration motor 425 can play a role in alleviating skin stiffness by gently massaging hardened skin before creating a wound in the skin of the treatment area with the needle. It can also reduce fatigue when the patient holds the body part 100 for an extended period during treatment.

[0042] The LED window 420 serves as an indicator window to show the operating status of the treatment device during the treatment process. The body block 400 configured as described above may be configured such that the end of the shaft 302 and the connection pins 428 of the main circuit board pass through and are exposed to the LED window 420, as shown in Figure 2.

[0043] On the other hand, the needle unit 200 of the present invention may include needle groups 211, 221, which include a plurality of needles.

[0044] The first needle group 211, which is part of the needle groups 211 and 221, may be fixed to the first circuit board 210. The remaining part, the second needle group 221, may be fixed to the second circuit board 220. The second needle group 221 is positioned to penetrate the perforations 212 formed in the first circuit board 210 and can penetrate the skin by protruding outwards.

[0045] In other words, according to the technical concept of the present invention, by fixing and arranging multiple needles on different circuit boards, it is possible to solve the problems that may arise when arranging many needles on any one circuit board.

[0046] For example, as shown in Figures 4 and 6, the first circuit board 210 may include a first circuit board 210 on which the needles included in the first needle group 211 are fixed and which forms a perforated section 212.

[0047] The first needle group 211 may be fixed in a predetermined manner to the needle fixing section 211a, which is arranged at regular intervals on the back surface of the first circuit board 210, as shown in Figure 7a. For example, it may be fixed by various fixing methods such as soldering.

[0048] Of course, according to other embodiments, the circuit board and needle as defined herein may be integrated. For example, a projection may be formed on a copper plate, with the projection serving as the needle and the copper plate serving as the circuit board. The technical idea of ​​the present invention is that the circuit board and needle may be provided in a variety of ways, and the phrase "combined with or arranged on a circuit board" may include cases where the circuit board and needle are formed as a single unit, which can be easily inferred by the average expert in the art of the present invention.

[0049] On the other hand, the technical concept of the present invention describes an example in which, as shown in Figure 7a, needles fixed to a first circuit board 210, i.e., a circuit board positioned closer to the skin, i.e., a first needle group 211, are arranged in a predetermined matrix further outward, and needles fixed to a second circuit board 220, i.e., a circuit board positioned further away from the skin, i.e., a second needle group 221, are arranged between the matrices, but is not necessarily limited to this example.

[0050] In other words, Figure 7a shows an example where the number of needles in the first needle group 211 is greater and the number of needles in the second needle group 221 is smaller, and the second needle group 221 is positioned between the areas where the first needle group 211 is located (the dotted area in Figure 7). However, depending on the embodiment, the number of needles in the first needle group 211 fixed to the first circuit board 210 may be less than the number of needles in the second needle group 221 fixed to the second circuit board 220, and in this case, the needle groups 211 and 221 may be mounted such that the first needle group 211 is positioned between the second needle groups 221, as an average expert in the art of the present invention can easily deduce.

[0051] Furthermore, according to the technical concept of the present invention, it is advantageous for uniform therapeutic effects if the depth to which the first needle group 211 and the second needle group 221 penetrate the skin and reach their endpoints is constant. Of course, the first needle group 211 and the second needle group 221 do not necessarily need to penetrate the skin and may be used to stimulate the skin by pressing it at a certain level. In any case, it is preferable that the needles included in the second needle group 221 are at least a certain length longer than the needles included in the first needle group 211. However, the scope of the present invention is not necessarily limited to this, and various embodiments are possible.

[0052] According to one embodiment, the needles included in the first needle group 211 may each be fixed to the corresponding first needle fixing portion 211a.

[0053] The first needle fixing portions 211a may be arranged in a matrix having multiple rows and multiple columns, as shown in Figure 7a. However, there are various embodiments of such arrangement of the first needle fixing portions 211a.

[0054] For example, Figure 7a shows a case where the first needle fixing parts 211a are arranged in a 5x5 matrix, with each row representing a square matrix with the same position in the x-axis direction. Typically, the first needle fixing parts 211a may be arranged in an mxn square matrix (where m is a natural number greater than or equal to 2 for the number of rows, and n is a natural number greater than or equal to 2 for the number of columns).

[0055] Multiple perforations 212 may be formed in a marginal space within the region formed by the matrix (dotted line region) that does not overlap with the first needle fixing portion 211a.

[0056] For example, the first needle fixing portion 211a may be arranged in a square matrix as shown in Figure 7a, in which case the perforation portion 212 may be formed inside the smallest square, which is the smallest square that can be formed by the four needle fixing portions 211-1, 211-2, 211-3, and 211-4 included in the first needle fixing portion 211a. The perforation portion 212 may be located, for example, in the center of the smallest square.

[0057] In other words, the smallest square is formed by four adjacent first needle fixing parts 211a, and in such cases, it is preferable to place one more needle in the internal space of the smallest square. However, according to the technical concept of the present invention, by fixing the needle placed in the internal space of the smallest square to a different physical configuration, namely the second circuit board 220, rather than fixing it to the first circuit board 210 with the same physical configuration as the four needle fixing parts 211-1, 211-2, 211-3, and 211-4 that form the smallest square, the spacing between the needles can be made closer, and the problem of short circuits between the needle fixing parts 211a for fixing the needles can also be solved.

[0058] For example, a perforation 212 may be formed in the center of each smallest square formed by each of the four needle solder portions 211a. By forming the perforation 212 in the center of four adjacent needle solder portions 211a, the perforation 212 may be located in a position that forms an equilateral triangle with two adjacent first needle groups 211-1 and 211-2 of the first needle group 211.

[0059] Generally, when the first needle fixing parts are arranged in a square matrix of size m × n (where m is a natural number greater than or equal to 2 for the number of rows, and n is a natural number greater than or equal to 2 for the number of columns), the needle fixing parts located at (a, b) (where a is a natural number greater than or equal to (m-1)) and (b is a natural number greater than or equal to (n-1)) can form the smallest square. For example, when a and b are 1, the needle fixing part 211-1 located at (1, 1), the needle fixing part 211-2 located at (1, 2), the needle fixing part 211-3 located at (2, 1), and the needle fixing part 211-4 located at (2, 2) can form the smallest square. In such a case, a perforation part 212 may be formed inside the smallest square (for example, in the center).

[0060] Ultimately, the arrangement of the needles penetrating the skin is the same as the arrangement of the needle fixing parts. By placing one more needle in the center of the smallest square formed by the four needles, the spacing between the needles can be made denser.

[0061] On the other hand, Figure 7 shows an example where the first needle group is arranged in a square matrix, and one row (for example, the first row containing 211-1) and the next row (for example, the second row containing 211-3) are located at the same position horizontally. That is, the i-th needle (i is between 2 and n) in the first row of an m×n (m and n are natural numbers greater than or equal to 2) first needle group and the i-th needle in the second row are located at the same position along the x-axis, but can be separated by a predetermined distance D2 only along the y-axis. In such a case, the first needle group can form a minimum square with four needles 211-1, 211-2, 211-3, and 211-4.

[0062] However, according to other embodiments, in the first needle group, each needle included in the second row may be positioned between the needles of the first row. An example of this is shown in Figure 7b.

[0063] As shown in Figure 7b, the first needle fixing portion may include multiple m rows. A row a may have n elements, each element representing a position where the first needle fixing portion is positioned.

[0064] Furthermore, row (a+1) may have (n-1) elements, and each element of row (a+1) may be located between the elements of row a in the x-axis direction, as shown in Figure 7b.

[0065] In such a case, the needle fixing parts located at (a, b) (where a is a natural number between 1 and (m-1), and b is a natural number between 1 and (n-1)), the needle fixing part located at (a, b+1), and the needle fixing part located at (a+1, b) can form a minimum triangle. For example, when a and b are 1, the needle fixing part 211-5 located at (1, 1), the needle fixing part 211-6 located at (1, 2), the needle fixing part 211-4 located at the needle fixing part 211-7 located at (2, 1) can form a minimum triangle. In such a case, a perforation part 212 may be formed inside the minimum triangle (for example, in the center).

[0066] On the other hand, according to another embodiment, the skin treatment device 1000 equipped with a group of needles may be equipped with only one circuit board. In such a case, the skin treatment device 1000 equipped with a group of needles may have the first group of needles and the second group of needles fixed to one of the circuit boards, in which case the first needle fixing section to which the first group of needles is fixed may be arranged in a matrix having multiple rows and multiple columns, as shown in Figure 7a. Alternatively, the needle fixing section may be provided instead of the perforation section shown in Figure 7a.

[0067] The second needle fixing portion, corresponding to the second needle group and positioned at the location of the perforation, may be formed inside the smallest square of the square that can be formed by the four needle fixing portions 211-1, 211-2, 211-3, and 211-4 included in the first needle fixing portion. That is, as described above, the needles included in the second needle group may be arranged inside the smallest square formed by four adjacent first needle fixing portions. In this case, there is an effect that the needles can be arranged relatively densely without having to configure multiple circuit boards. Of course, in this case, the possibility of electrical shorts between the needle fixing portions may increase further.

[0068] Generally, when the needle fixing parts are arranged in a square matrix of size m × n (where m is a natural number greater than or equal to 2 for the number of rows, and n is a natural number greater than or equal to 2 for the number of columns), the needle fixing parts located at (a, b) (where a is a number between 1 and (m-1)) and b is a number between 1 and (n-1) for the column can form the smallest square. For example, when a and b are 1, the needle fixing part 211-1 located at (1, 1), the needle fixing part 211-2 located at (1, 2), the needle fixing part 211-3 located at (2, 1), and the needle fixing part 211-4 located at (2, 2) can form the smallest square. In such a case, one more needle fixing part may be formed inside the smallest square (for example, in the center).

[0069] Ultimately, the arrangement of the needles penetrating the skin is the same as the arrangement of the needle fixing parts. By placing one more needle in the center of the smallest square formed by the four needles, the spacing between the needles can be made denser.

[0070] In another embodiment, as shown in Figure 7b, the first needle fixing portion may include a plurality of m rows. A row a may have n elements, each element may represent a position where the first needle fixing portion is positioned.

[0071] Furthermore, row (a+1) may have (n-1) elements, and each element of row (a+1) may be located between the elements of row a in the x-axis direction, as shown in Figure 7b.

[0072] In such cases, the needle fixing parts positioned at (a, b) (where a is a natural number between 1 and (m-1), and b is a natural number between 1 and (n-1)), the needle fixing part positioned at (a, b+1), and the needle fixing part positioned at (a+1, b) can form a minimum triangle. For example, when a and b are 1, the needle fixing part 211-5 is positioned at (1, 1), the needle fixing part 211-6 is positioned at (1, 2), and the needle fixing part 211-7 is positioned at (2, 1). but A minimum triangle can be formed. In such a case, an additional needle fixing portion may be formed inside the minimum triangle (for example, in the center).

[0073] Ultimately, the arrangement of the needles penetrating the skin is the same as the arrangement of the needle fixing parts. Therefore, by placing one more needle in the center of the smallest triangle formed by the three needles, it has the effect of allowing the needles to be spaced more closely together.

[0074] Ultimately, according to the technical concept of the present invention, whether the needles are fixed to multiple circuit boards or to just one circuit board, it is possible to place one more needle inside the smallest square or smallest triangle using the conventional needle arrangement method, thereby achieving a higher skin treatment effect.

[0075] Such an example will be explained in more detail with reference to Figures 10 and 11.

[0076] Figure 10 is a diagram illustrating a conventional needle placement method, and in order to fix the needle, the needle fixing part must occupy an area above a certain level. Otherwise, the bonding force between the needle and the circuit board will not be sufficient, and in such a case, the needle may detach from the circuit board or penetrate the other side of the circuit board. After the needle penetrates the skin, it may conduct electrical energy, or the skin and needle pin may contract, causing the needle to become stuck in the skin and unable to be removed.

[0077] Therefore, due to the size of the needle fixing part exceeding a certain level, conventionally, the needle fixing parts were arranged in a square matrix format as shown in Figure 10a.

[0078] As shown in Figure 10b, the spacing between needles in the same row, i.e., YY, is approximately B, which represents the spacing between skin perforations, i.e., the area of ​​unperforated skin. However, at the spacing XX between needles located diagonally, a relatively much larger spacing of approximately A occurs. For example, if B is approximately 1.1 mm, then A will be approximately 1.95 mm, which means that the area of ​​unperforated skin will be relatively larger, potentially leading to a decrease in the effectiveness of the treatment.

[0079] However, according to the needle fixing method based on the technical concept of the present invention as shown in Figure 11, it is possible to arrange the needles much more densely while ensuring sufficient area for the needle fixing portion, thereby improving the treatment effect.

[0080] Referring to Figure 11, when the needle fixing section is arranged in a square matrix as described above, the perforation section or needle fixing section can be arranged so that one more needle can be placed inside the smallest square (e.g., the center). When the perforation section is located inside the smallest square (e.g., the center), needles are connected to multiple circuit boards, and when the needle fixing section is located inside the smallest square (e.g., the center), needles may be connected to any one of the circuit boards. In such cases, the spacing between needles in the same row, i.e., YY, is still about B for skin perforation. However, the spacing between needles located diagonally, XX, results in a relatively much narrower spacing of about C. For example, if B is about 1.1 mm, C will be about 0.58 mm, which means that the area of ​​unperforated skin is relatively smaller, and the treatment effect may be greatly improved compared to conventional methods.

[0081] On the other hand, if a needle fixing part included in a specific row of needle fixing parts is located laterally between the needle fixing parts of the previous row, as described above, the perforation part or needle fixing part can be positioned so that one more needle can be placed inside the smallest triangle formed by the three needle fixing parts (e.g., in the center). If the perforation part is positioned inside the smallest triangle (e.g., in the center), it is the case that needles are connected to multiple circuit boards, and if the needle fixing part is positioned inside the smallest triangle (e.g., in the center), it is the case that needles are connected to any one of the circuit boards. In such cases, the spacing between needles included in the same row, i.e., in YY, the skin perforation spacing will be about D. However, the spacing between needles formed along XX will be a relatively much narrower spacing of about C. For example, if D is about 1.6 mm, C will be a spacing of about 0.58 mm, and even in such cases, the area of ​​unperforated skin becomes relatively smaller, which can mean that the treatment effect is greatly improved compared to conventional methods.

[0082] Referring again to Figure 7, the spacing D1 between any one of the needle fixing portions 211a corresponding to the first needle group 211 and the adjacent perforation portion 212 may be set to 0.28 ± 0.1 mm, the spacing D2 between one needle solder portion 211a and the adjacent needle solder portion 211a may be set to 0.75 ± 0.1 mm, the diameter of the needle solder portion 211a may be set to 1.2 ± 0.1 mm, and the diameter of the perforation portion 212 may be set to 1 ± 0.1 mm. Various embodiments are possible.

[0083] Furthermore, the skin treatment device 1000 equipped with the needle group may also include a second circuit board 220 to which the second needle group 221 passing through the perforations 212 of the first circuit board 210 is fixed, and the second needle group 221 is located on the second circuit board as shown in Figure 8. 220 The second needle solder portion 221a, which is arranged at regular intervals on the back surface of the second needle, may be fixed by a predetermined method. The second needle group 221 may also be fixed to the second needle solder portion 221a by various methods such as soldering.

[0084] As described above, the diameters of the needles fixed to the first circuit board 210 and the second circuit board 220 may be 700 μm or less. If the diameter of the needles is 700 μm or more, it may increase unnecessary pain and scarring on the skin.

[0085] In short, according to the technical concept of the present invention, by dividing and fixing the needles to multiple circuit boards, the needles can be densely spaced within a limited spatial area, and short-circuit defects that occur when soldering the needles to each circuit board can be fundamentally prevented. Because the present invention allows for dense arrangement of needles without short-circuiting within a limited spatial area, it is possible to increase the manufacturing yield in the manufacturing process of the needle unit, and further improve the safety and therapeutic effect of the device.

[0086] Each of the needles included in the first needle group 211 and the second needle group 221 is not limited to having a circular cross-section, but can be made up of various shapes such as triangles, squares, polygons, or combinations thereof.

[0087] Furthermore, each of the needles included in the first needle group 211 and the second needle group 221 may be configured to have a hollow section (not shown) in the center, allowing for the delivery of the necessary drug during treatment.

[0088] A spacer 230 may be provided between the first circuit board 210 and the second circuit board 220 to prevent short circuits.

[0089] Furthermore, the needle unit 200 may be configured with a needle circuit board 240 that is connected simultaneously with the first circuit board 210 and the second circuit board 220 so as to supply RF high-frequency energy to the first needle group 211 and the second needle group 221. A bracket 250 may be configured between the second circuit board 220 and the needle circuit board 240, and the needle circuit board 240 may be coupled and fixed to the bracket. A shaft contact member 270 may be configured between the second circuit board 220 and the bracket 250. The shaft contact member 270 may contact the end of the shaft 302 that descends through a hole 241 formed in the center of the needle circuit board 240 and a hole 251 formed in the center of the bracket 250.

[0090] The upper side of the needle circuit board 240 may be provided with elastic springs 281 and 282, one end of which is supported by the needle circuit board 240 and the other end of which is inserted into the needle electrode rods 291 and 292 and supported by the steps 291a and 292a of the needle electrode rods, respectively.

[0091] On the upper side of the needle circuit board 240, there may be connection terminals (not shown) that connect to the connection pins 428 of the main circuit board of the body block 400 when the needle unit 200 is coupled to the body portion 100, thereby connecting the circuits. The connection terminals on the needle circuit board 240 may be configured on a copper foil surface to facilitate the connection and disconnection of the connection pins 428 of the main circuit board.

[0092] The lower ends 291b and 292b of the needle electrode rods into which the elastic springs are inserted may be connected to the first circuit board 210 and the second circuit board 220 by passing through holes 242 and 243 formed on both sides of the needle circuit board 240 and holes 252 and 253 formed on both sides of the bracket 250.

[0093] By configuring the needle electrode rods 291 and 292 as described above, RF high-frequency energy and / or electrical energy can be supplied from the needle circuit board 240 to the first circuit board 210 and the second circuit board 220. That is, with the lower ends 291b and 292b of the needle electrode rods circuit-connected and fixed so as to supply electrical energy to the first circuit board 210 and the second circuit board 220, elastic springs 281 and 282 may be connected to the copper foil surfaces formed in the holes 242 and 243 formed on both sides of the needle circuit board 240, and the springs 281 and 282 may be connected to the steps 291a and 292a of the electrode rods 291 and 292, thereby being electrically connected to the needle circuit board 240 at all times. The needle electrode rods 291 and 292 act as movable terminals that connect to the holes 242 and 243 formed on both sides of the needle circuit board 240, and can be electrically connected to the circuits of the needle circuit board 240 at all times.

[0094] On the other hand, while embodiments of the present invention mainly describe the case in which RF energy and / or electrical energy is supplied via needles, in some embodiments, the skin treatment device 1000 according to the present invention can also be used for purposes such as penetrating the skin or providing stimulation outside the skin without supplying such RF energy and / or electrical energy. Therefore, in the former case, adjacent needles may be arranged to have different polarities from each other, and in the latter case, the needles may have no polarity or have a single polarity.

[0095] Since the needle electrode rods 291 and 292 are elastically supported by elastic springs 281 and 282 supported by the needle circuit board 240, they act to pull the connecting bundle consisting of the shaft contact member 270, the second circuit board 220, the spacer 230, and the first circuit board 210 toward the bracket 250. When the drive motor 301 is driven to move the shaft 302 toward the downward side, the shaft contact member 270 is pushed, and the connecting bundle including the first circuit board 210 and the shaft contact member 270 can descend toward the skin toward the direction of travel relative to the bracket 250.

[0096] The coupling bundle consisting of the shaft contact member 270, the second circuit board 220, the spacer 230, and the first circuit board 210, as well as the bracket 250, the needle circuit board 240, and the needle electrode rods 291 and 292, may be housed within the chip case 297.

[0097] The tip case 297 may have needle through-holes 298 and 299 through which the ends of the first group of needles 211 and the second group of needles 221 pass simultaneously. It may also include fasteners 296 for fastening to the body portion 100. As shown in Figure 9, the needle through-hole 298 may be configured for the first group of needles 211 to pass through, and the needle through-hole 299 for the second group of needles 221 to pass through. The length through which the first group of needles 211 and the second group of needles 221 protrude outside the needle through-holes 298 and 299 is determined by the target depth of the wound caused by the needles, but can be 500 to 2,000 μm when targeting the dermis layer of the skin. As mentioned above, the endpoints of the lengths through which the first group of needles 211 and the second group of needles 221 protrude outside the needle through-holes 298 and 299 may be formed at the same time.

[0098] On the other hand, the skin treatment device 1000 equipped with the needle group of the present invention as described above may be vibrated during treatment.

[0099] For example, the practitioner may issue a treatment start signal (e.g., power on) with the end of the device in contact with the treatment area of ​​the skin. This drives the vibration motor 425, and the end of the tip case 297 in contact with the skin produces a massage effect, thereby relieving skin stiffness. With the vibration applied or after the massage, when the vibration motor 425 is turned off, the drive motor 301 is driven to lower the shaft 302 at regular intervals. The end of the shaft 302 pushes the shaft contact member 270, causing the first circuit board 210 and the second circuit board 220 to lower simultaneously, and the first needle group 211 and the second needle group 221 to pierce the skin and form wounds.

[0100] In the above state, the procedure can be performed on the skin by irradiating the wound with RF high-frequency energy using the first needle group 211 and the second needle group 221.

[0101] The above description of the present invention is illustrative, and a person with ordinary skill in the art to which the invention pertains will understand that it can be easily modified in other specific forms without altering the technical idea or essential features of the invention. Therefore, the embodiments described above should be understood to be illustrative and not limiting in all respects. For example, each component described in a single form may be implemented in a dispersed manner, and similarly, components described as dispersed may be implemented in a combined manner. The scope of the invention is indicated by the claims, which are set forth below the above detailed description, and all modifications or altered forms derived from the meaning and scope of the claims, and the concept of their equivalents, should be interpreted as being within the scope of the invention. [Industrial applicability]

[0102] The skin treatment device equipped with the needle group of the present invention can be used for skin cosmetic procedures, skin disease treatment, localized fat removal, and the like. [Explanation of symbols]

[0103] 100 Body part 200 Needle Unit 210 First Circuit Board 211 First Needle Group 211a, 221a Needle fixing part 212 Perforation part 220 Second Circuit Board 221 Second Needle Group 230 Spacer 240 Needle Circuit Board 241, 242, 243, 251, 252, 253 holes 250 bracket 281, 282 Elastic springs 291, 292 Needle electrode rods 296 Fasteners 297 Chip Case 298, 299 Needle through holes 300 Motor Blocks 301 Drive motor 302 Shaft 400 Body Block 401 Shaft support section 402 Front support section 403 Main circuit board support section 410 Main Circuit Board 420 LED windows 425 Vibration Motor 428 connection pins 501, 502 Body Case 520 Cable 1000 skin treatment equipment

Claims

1. A group of needles including multiple needles, A first circuit board is provided, on which a first needle group, which is part of the aforementioned needle group, is fixed and a perforated portion is formed. A second circuit board to which the second needle group, which is part of the remaining portion of the aforementioned needle group, is fixed, Includes, The second group of needles is formed to pass through the perforations of the first circuit board and protrude to the outside. The first needle fixing portion corresponding to the first needle group is arranged in a matrix having multiple rows and multiple columns, The perforation portion is formed within the region formed by the matrix, within the smallest square in which a needle fixing portion included in the matrix can be formed. The first needle group and the second needle group are needles configured to irradiate RF high-frequency energy. A skin treatment device equipped with a group of needles.

2. The skin device comprising the aforementioned group of needles is A skin treatment device comprising a needle group according to claim 1, further comprising a tip case having needle through-holes through which the first needle group and the second needle group pass and protrude to the outside.

3. A skin treatment device comprising a needle group according to claim 1, characterized in that the number of needles included in the first needle group is greater than the number of needles included in the second needle group.

4. The needles included in the second group of needles are A skin treatment device comprising the needle group according to claim 1, characterized in that the needles are formed to be even longer in length than the needles included in the first needle group.

5. The first needle group and the second needle group are, A skin treatment device comprising a group of needles according to claim 4, wherein when each needle protrudes to its maximum extent outward, its terminal point is located at the same depth.

6. At least one of the needles included in the aforementioned group of needles is A skin treatment device comprising a group of needles according to claim 1, characterized in that it has a hollow section to enable drug supply.

7. The skin treatment device comprising the aforementioned group of needles is, A skin treatment device comprising a needle group according to claim 1, further comprising a needle circuit board connected simultaneously with the first circuit board and the second circuit board so as to be able to supply RF high-frequency energy to the needles included in the first needle group and the second needle group, and a bracket configured between the second circuit board and the needle circuit board to support the needle circuit board.

8. The skin treatment device comprising the aforementioned group of needles is, A skin treatment device comprising a group of needles according to claim 7, characterized in that an elastic spring, one end of which is supported by the needle circuit board, and a needle electrode rod inserted into the elastic spring are interposed to connect the first circuit board, the second circuit board and the needle circuit board.

9. The skin treatment device comprising the aforementioned group of needles is, A skin treatment device comprising a needle group according to claim 8, further comprising a main circuit board connected to the needle circuit board and a vibration motor, wherein a needle moving means is provided to push at least the first circuit board and the second circuit board to pass the needles included in the first needle group and the second needle group through the needle through-holes of the tip case.

10. A skin treatment device including multiple needles, The aforementioned plurality of needles are The first needle group is arranged in a square matrix of size m × n (where m is a natural number greater than or equal to 2 for the number of rows, and n is a natural number greater than or equal to 2 for the number of columns), A second group of needles is arranged inside the smallest square formed by the needles in the first group of needles, specifically the needles arranged in (a, b) (where a is 1 or more and (m-1)) rows, the needles arranged in (a, b+1), the needles arranged in (a+1, b), and the needles arranged in (a+1, b+1). Includes, The first needle group and the second needle group are needles configured to irradiate RF high-frequency energy. A skin treatment device equipped with a group of needles.

11. A skin treatment device including multiple needles, Among the aforementioned plurality of needles, The first group of needles is, The needles are arranged in multiple m rows (where m is a natural number greater than or equal to 2), but in any of the m rows, row a (where a is a natural number greater than or equal to 1 and less than or equal to (m-1)), n needles (where n is a natural number greater than or equal to 2) are placed, row (a+1) has (n-1) needles, and the needles placed in row (a+1) are positioned between the needles of row a in the x-axis direction. The first group of needles includes a second group of needles located inside the smallest triangle formed by the needles located at (a, b) (where a is a natural number between 1 and (m-1), and b is a natural number between 1 and (n-1)), the needle located at (a, b+1), and the needle located at (a+1, b), for example, in the center. The first needle group and the second needle group are needles configured to irradiate RF high-frequency energy. A skin treatment device equipped with a group of needles.

12. A method for driving a skin treatment device equipped with a group of needles, The skin treatment device equipped with the needle group receives a treatment start signal, A skin treatment device equipped with the needle group moves, in response to the treatment start signal, a first circuit board on which a first needle group, which is part of the needle group including a plurality of needles, is fixed and perforations are formed, and a second circuit board on which a second needle group, which is part of the remaining needle group, is fixed. Includes, The second group of needles is formed to pass through the perforations of the first circuit board and protrude to the outside. The first needle fixing portion corresponding to the first needle group is arranged in a matrix having multiple rows and multiple columns, The perforation portion is formed within the region formed by the matrix, within the smallest square in which a needle fixing portion included in the matrix can be formed. A method for driving a skin treatment device comprising a group of needles, characterized in that the first group of needles and the second group of needles are needles configured to irradiate RF high-frequency energy.

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