Handpiece treatment tip

Abstract

To provide a treatment tip for a handpiece that can ensure a smooth field of view and minimize interference with hair when treating the scalp, and further to provide a treatment tip for a handpiece that can eliminate variations in insertion between needles, i.e., variations in penetration depth, when treating the scalp. [Solution] The treatment tip for a handpiece disclosed by the present invention comprises a needle section containing multiple needles and a guide section having multiple tubular needle guides corresponding to the needles, the multiple tubular needle guides being arranged in one or more rows, the needles being positioned inside the multiple tubular needle guides, and the imaginary line connecting the needle inlet and outlet ends of the tubular needle guides arranged in one row having a curvature.

Description

[Technical Field]

[0001] The present invention relates to a treatment tip for a handpiece, and more particularly to a treatment tip for a handpiece of an invasive high-frequency treatment device that treats the scalp by penetrating fine needles into the scalp to apply electrical stimulation (high-frequency stimulation). [Background technology]

[0002] One skin treatment method that has recently been gaining attention is microneedle therapy. This involves penetrating extremely fine needles into the skin to form treatment columns, and then simultaneously applying radiofrequency (RF) to create microinjuries that promote skin regeneration. As these microinjuries close, RF stimulates cell growth, maximizing the skin's natural healing and regeneration. When RF is applied to human tissue through the microneedles, which act as electrodes to deliver RF stimulation, frictional heat is generated within the skin tissue around the microneedles. This causes collagen components in the dermis to harden and promotes the formation of new collagen, resulting in skin improvement effects such as the reduction of wrinkles and the shrinkage of pores.

[0003] Microneedle therapy generates heat (approximately 40-60°C) at the target area without burning the epidermis, regenerating collagen and elastic fibers. This makes it highly effective for treating acne, acne scars, fine lines, deep wrinkles, and pore reduction. It also promotes fat burning by improving blood circulation and activating the lymphatic system, making it possible to treat obesity. An invasive high-frequency therapy device that enables microneedle therapy generally consists of a handpiece, a treatment tip, and a controller. The treatment tip is equipped with linearly movable microneedles that function as electrodes. Therefore, when the treatment tip is placed on the treatment area and the device is operated, the microneedles simultaneously move and penetrate the skin, receiving high-frequency signals and applying electrical stimulation to the skin layer.

[0004] Meanwhile, the scalp is also a type of skin, and thus can undergo the aforementioned microneedle treatment. When applied to the scalp, microneedle treatment can reconstruct and rearrange the scalp's dermal tissue, minimizing hair follicle rupture and preventing scalp deformation and cell necrosis. It also stimulates the scalp's dermis, promoting collagen synthesis and repairing scalp damage, and smoothing wrinkles. However, unlike other skin, the scalp is covered with numerous hairs, making it difficult to secure a clear view of the treatment area. Furthermore, when the treatment device's treatment area is brought into contact with the scalp, the hairs that are pressed against the scalp can prevent the microneedles from penetrating the scalp, making the treatment difficult. The pressed hairs can also deform the microneedles, causing pain during penetration.

[0005] In addition, most conventional invasive high-frequency treatment devices have needle arrangements in which the tips of each fine needle that protrudes externally for treatment are aligned on the same plane. Therefore, in the case of the scalp, which has a curved surface contour unlike other parts of the body, there may be variations in insertion of the fine needles (variations in penetration depth) during treatment. As a result, the skin layer at the desired depth cannot be accurately targeted, which may reduce the effectiveness of the treatment or, in severe cases, cause side effects. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Korean Patent Publication No. 10-2015-0060312 [Patent Document 2] Korean Patent Publication No. 10-2021-0055663 Summary of the Invention [Problem to be solved by the invention]

[0007] The technical problem to be solved by the present invention is to provide a treatment tip for a handpiece that can ensure a clear field of view and minimize interference with hair when performing treatment on the scalp. Another technical problem to be solved by the present invention is to provide a treatment tip for a handpiece that has a geometric shape suitable for scalp treatment and can eliminate the problem of needle insertion variations (variation in penetration depth) when performing treatment on the scalp. [Means for solving the problem]

[0008] The treatment tip for a handpiece according to the present invention is a treatment tip for a handpiece of an invasive high-frequency treatment device, and comprises a needle section including a plurality of needles and a guide section having a plurality of tubular needle guides corresponding to the needles, wherein the plurality of tubular needle guides are arranged in one or more rows, the needles are positioned inside the plurality of tubular needle guides, and an imaginary line connecting the needle inlet and outlet ends of the tubular needle guides arranged in one row has a curvature.

[0009] The treatment tip for a handpiece according to the present invention may further include a cap portion detachably attached to a distal end of the handpiece, and a lifting platform movably disposed within the cap portion and carrying the needle portion. Here, the guide portion may be configured at the distal end of the cap portion. The guide portion may be integral with the distal end of the cap portion, or may be detachably attached to the distal end of the cap portion.

[0010] The tubular needle guides arranged in a row may be configured such that the tubular needle guides located at the outermost sides are relatively long and the lengths of the tubular needle guides gradually decrease toward the center. At least two needles may be positioned inside one tubular needle guide. In this case, the at least two needles positioned inside one tubular needle guide may be formed to be the same length. During a needle withdrawal operation, each needle may be withdrawn to the same length from its corresponding tubular needle guide. [Effects of the Invention]

[0011] The scalp care treatment chip according to the embodiment of the present invention is an invasive method (a method in which fine needles penetrate the scalp of the treatment target to apply electrical stimulation) that is effective for scalp treatment, but it also has the advantage of being a structure that allows the needles to penetrate the scalp safely, i.e., a structure that is suitable for scalp treatment, by applying a unique structure (tubular needle guide) that can avoid or minimize interference with surrounding hair during treatment.

[0012] Furthermore, because the treatment tip is configured in a comb shape with a predetermined curvature, the treatment field of the treatment area can be smoothly secured by combing it. Since the field of view is secured more easily, the needle can be accurately penetrated into the desired treatment area, significantly reducing incorrect treatment and the resulting side effects, thereby greatly improving the accuracy and precision of the treatment.

[0013] Furthermore, since the guide section including the tubular needle guide has a geometric shape whose surface contour corresponds to the shape of the scalp surface, which is a curved surface, the tip of the guide section can be in stable contact with the scalp surface without floating up during treatment.In this state, each needle is pulled out to the same length from the corresponding tubular needle guide, which clearly eliminates the problems of conventional needle insertion variation (variation in penetration depth) and the resulting reduction in treatment effectiveness and side effects. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a view showing a state in which a treatment tip according to an embodiment of the present invention is attached to the tip of a handpiece of an invasive high-frequency treatment device. [Figure 2] 10 is a view showing the state in which the treatment tip according to the embodiment of the present invention is separated from the handpiece of the invasive high-frequency treatment device. FIG. [Figure 3] 10A and 10B are diagrams illustrating a coupling state of a treatment tip for a handpiece according to an embodiment of the present invention. [Figure 4] FIG. 4 is a view showing the treatment tip shown in FIG. 3 in an separated state. [Figure 5] FIG. 4 is a cross-sectional view schematically showing the internal configuration of the treatment tip shown in FIG. 3. [Figure 6] FIG. 10 is a cross-sectional view of the tubular needle guide to show the needle placement. [Figure 7] 10A-10C are plan views of the guide portion illustrating various arrangements of tubular needle guides. [Figure 8] 10A to 10C are diagrams illustrating a preparation process for performing invasive high-frequency treatment on the scalp using a treatment tip according to an embodiment of the present invention. [Figure 9] 10A and 10B are diagrams showing an invasive high-frequency treatment being performed on the scalp using a treatment tip according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] Preferred embodiments of the present invention will now be described in detail.

[0016] The examples are provided to more completely explain the present invention to those skilled in the art, and the following examples can be modified in various different forms, and the scope of the present invention is not limited to the following examples. Rather, these examples are provided to make the present disclosure more complete and complete and to fully convey the idea of ​​the present invention. The terms used in this specification are used to describe specific examples and are not intended to limit the present invention. Furthermore, in this specification, the singular form "a," "an," or "an" can include the plural form unless the context clearly dictates otherwise.

[0017] In this application, the terms "comprise," "include," "have," and the like are intended to specify the presence of a feature, numeral, step, operation, component, part, or combination thereof, but should be understood not to preclude the possibility of the presence or addition of one or more other features, numerals, steps, operations, components, parts, or combinations thereof. Furthermore, when a component is "in front of," "behind," "above," or "below" another component, unless otherwise specified, it includes not only a component directly adjacent to the other component, but also a component disposed between the other component and the other component. Furthermore, when a component is "connected" to another component, it includes not only a component directly connected to the other component, but also a component indirectly connected to the other component, unless otherwise specified.

[0018] The drawings are merely for the purpose of understanding the concept of the present invention and should not be construed as limiting the scope of the present invention. Furthermore, in the drawings, relative thickness, length, and relative size may be exaggerated for convenience and clarity of explanation. A treatment tip according to an embodiment of the present invention is a treatment tip for a handpiece of an invasive radiofrequency treatment device that treats the scalp by penetrating fine needles into the scalp and applying electrical stimulation (high-frequency stimulation). The treatment tip according to the embodiment inserts needles (fine needles) into the patient's scalp and transmits radiofrequency (RF) through the inserted needles to improve the scalp environment, thereby alleviating and improving hair loss or blackhead symptoms.

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0020] Fig. 1 is a view showing a state in which a treatment tip according to an embodiment of the present invention is attached to the tip of a handpiece of an invasive high-frequency treatment device, and Fig. 2 is a view showing a state in which a treatment tip according to an embodiment of the present invention is separated from the handpiece of the invasive high-frequency treatment device. With reference to these drawings, the overall configuration of an invasive high-frequency treatment device including a treatment tip according to an embodiment of the present invention will be described in brief.

[0021] As shown in FIGS. 1 and 2, the invasive high-frequency treatment device 1 includes a handpiece 10. The invasive high-frequency treatment device 1 also includes a handpiece treatment tip 20 according to an embodiment of the present invention, which is attached to the distal end of the handpiece 10. The treatment tip 20 can be detachably attached to the distal end of the handpiece 10 in a cartridge format. Therefore, it can be easily detached from the handpiece 10 and replaced when necessary. The treatment tip 20 includes a plurality of needles (microneedles 240) to which radio frequency (RF) current is applied from the handpiece 10. The plurality of needles 240 can penetrate the target skin tissue of the treatment recipient to transmit radio frequency (RF). The treatment tip 20 including the plurality of needles 240 can be provided in various types with different numbers and arrangements of the needles 240 depending on the purpose of use. Therefore, the practitioner can perform the treatment after attaching the treatment tip 20 suitable for the treatment to the handpiece 10.

[0022] The handpiece 10 is connected to the main body (not shown) of the high-frequency treatment device 1 via a cable to exchange signals or information. Although not shown, the handpiece 10 may include a driver that linearly drives the needle portion 24 inside the treatment tip 20, a high-frequency (RF) generator that generates and applies RF to the needle portion 24 including the multiple needles 240, and a controller that controls the driver and the RF generator. The driver can reciprocate the needle portion 24 including the multiple needles 240 in a specific direction (up and down in the drawing) within a certain stroke range, and the RF generator can convert power supplied from the main body into a high-frequency pulse and transmit it to the needle portion 24. The driver can be in various forms, such as a motor, a ball screw, a pneumatic actuator, or an electromagnetic actuator.

[0023] The handpiece 10 may be provided with various operation buttons that are externally exposed. The control unit may be electrically connected to the various operation buttons provided on the handpiece 10. Therefore, when a user operates a button on the handpiece 10, the control unit recognizes this and generates a corresponding control signal, which can be transmitted to the driver and the radio-frequency generator. This controls the operation of the driver and the radio-frequency generator. A drive shaft 12 may be connected to the driver. A portion of the drive shaft 12 may be exposed to the outside of the tip of the handpiece 10. The drive shaft 12 exposed at the tip of the handpiece 10 is disposed inside the treatment tip 20 and may be connected to a lifting platform 26 that carries a needle 24. Therefore, when the driver is operated, the lifting platform 26 connected to the drive shaft 12 and the needle 24 mounted on the lifting platform 26 can move in a specific direction (up and down in the drawing).

[0024] The treatment tip 20 includes a needle portion 24 and a cap portion 22. The needle portion 24 may be composed of a plurality of needles 240 and a substrate 244 on which the plurality of needles 240 are mounted. The cap portion 22 forms the outer shape of the treatment tip 20 and can accommodate the needle portion 24 in an internal accommodation space. The cap portion 22 may be made of an insulating material such as plastic, and can be detachably attached to the distal end of the handpiece 10.

[0025] The configuration of the treatment tip for a handpiece according to the embodiment of the present invention will be described more specifically with reference to FIGS.

[0026] Fig. 3 is a diagram showing a coupled state of a treatment tip for a handpiece according to an embodiment of the present invention, and Fig. 4 is a diagram showing the treatment tip shown in Fig. 3 in a separated state. Fig. 5 is a cross-sectional view schematically showing the internal configuration of the treatment tip shown in Fig. 3. As shown in Figs. 3 to 5, the treatment tip for a handpiece 20 according to the embodiment includes a needle portion 24 including a plurality of needles 240, and a cap portion 22 that houses a portion of the needle portion 24. The needle portion 24 includes the plurality of needles 240 and a substrate 244 on which the plurality of needles 240 are mounted at one time, and the cap portion 22 is detachably attached to the tip of the handpiece 10, so that it can be separated from the handpiece 10 together with the needle portion 24 when necessary.

[0027] A lifting platform 26 may be disposed inside the cap 22 so as to be movable in a specific direction (vertical direction in the drawing). The lifting platform 26 is connected to the drive shaft 12 protruding from the handpiece 10, and the base plate 244 of the needle 24 can be coupled to the lifting platform 26. Therefore, when the drive unit is operated, the lifting platform 26 coupled to the drive shaft 12 and the needle 24 mounted on the lifting platform 26 can move relative to the cap 22, which is a relatively fixed body, in a specific direction (vertical direction in the drawing).

[0028] 4, the cap portion 22 is configured to be divided into two parts, an upper cap 22a and a lower cap 22b, which can be separated and connected. In this case, with the upper cap 22a and the lower cap 22b separated, the needle portion 24 and the lifting platform 26 are placed at a predetermined connection position, and then the upper cap 22a and the lower cap 22b are connected to complete the treatment tip 20 according to the embodiment. Here, a snap joint may be used to connect the two caps 22 and 22b.

[0029] The multiple needles 240 function as electrodes that transmit radio frequency (RF) generated by the radio frequency generator to the skin layer. The multiple needles 240 can transmit radio frequency by protruding a predetermined length from the needle inlet / outlet end 282 of the guide unit 28 (described later) and penetrating into the target skin tissue through relative movement of the needle unit in a specific direction relative to the cap unit, or can return to an initial treatment position within the guide unit 28. The multiple needles 240 are roughly divided into two groups. The needles 240 in the same group have the same polarity, while the needles 240 in different groups may have opposite polarities. For example, if the needles in one of the two groups are anodes (positive electrodes), the needles in the other group constitute cathodes (negative electrodes), allowing a (+) voltage to be applied to the anode needle group and a (-) voltage to be applied to the cathode needle group.

[0030] A guide unit 28 may be configured at the tip of the cap unit 22. The guide unit 28 may include a plurality of tubular needle guides 280 corresponding to the needles 240. The guide unit 28 may be configured integrally with the cap unit 22 at the tip of the upper cap 22a, or may be provided as a detachable assembly at the tip of the upper cap 22a. Each tubular needle guide 280 may be formed as a hollow tube having various cross-sectional shapes, such as square, circular, or oval. A portion of the needle 240 may be located inside (hollow portion of) each tubular needle guide 280, and another portion may be located inside the cap unit 22 together with the base 244. In a standby state for treatment, the tip 242 of the needle 240 is fully inserted into the corresponding tubular needle guide 280 and is not exposed to the outside. When the drive unit operates in response to a treatment start command, the plurality of needles 240 are simultaneously pulled out to penetrate the scalp.

[0031] When a portion (tip 242) of the needles 240 pulled out from the tubular needle guide 280 penetrates the scalp, a high-frequency current generated by the high-frequency generator is simultaneously applied to the multiple needles 240, applying high-frequency stimulation to the internal skin tissue. As a result, the activity of cells constituting the dermal tissue inside the scalp increases, resulting in collagen synthesis and scalp damage recovery. The guide 28 serves to guide the movement (linear movement) of the needles 240. Therefore, even when the resistance force increases just before penetration into the scalp during high-frequency treatment, the needles 240 do not deform, allowing them to stably penetrate into the scalp and deliver radio frequency (RF) radiation. The guide 28 may be made of a non-metallic insulating material such as rubber, silicone, or plastic so as not to be affected by the high-frequency current applied to the needles 240, which function as electrodes.

[0032] Unlike other parts of the body, the scalp is covered with numerous hairs. This makes it difficult to obtain a clear view of the treatment area. Furthermore, when the treatment tip is brought into contact with the scalp surface, the hairs that are pushed against the surface can prevent the microneedles from penetrating the scalp, making the treatment difficult. The pushed hairs can also deform the microneedles, causing pain during scalp penetration. Furthermore, conventional needle arrangements have been used in which the tips (pointed ends) of the protruding needles are aligned on the same plane. Therefore, in the case of the scalp, which has a curved surface contour unlike other body parts, needle insertion variations (penetration depth variations) can occur during treatment. As a result, the desired skin layer cannot be accurately targeted, resulting in reduced treatment effectiveness or, in severe cases, side effects.

[0033] The handpiece treatment tip 20 according to the embodiment is a method for improving the scalp environment by simultaneously penetrating multiple needles into the treatment area and applying electrical stimulation, and has a geometric shape suitable for curved scalp treatment. This allows for a clear view of the scalp during treatment and eliminates the problem of uneven insertion between needles (variation in penetration depth) during scalp treatment. The main components of the handpiece treatment tip according to the embodiment will be described in more detail.

[0034] FIG. 6 is a cross-sectional view of a tubular needle guide showing the arrangement of the needles. Referring to FIG. 6 together with the above-mentioned FIGS. 3 to 5, the multiple tubular needle guides 280 may be arranged in one or more rows in the first direction, and adjacent tubular needle guides 280 may be arranged at a fixed distance from each other. That is, the treatment tip 20 according to the embodiment may be configured in an overall comb shape. Therefore, by combing the hair immediately before treatment, it is possible to organize the loose hair in the treatment area and ensure a clear treatment field.

[0035] In the handpiece treatment tip 20 according to the embodiment, a portion of the needle 240 can be housed inside the cap portion 22 together with the base plate 244. Another portion of the needle 240 may be housed in a non-pulled state, with at least two or more needles 240 divided into each of the multiple tubular needle guides 280, as shown in Fig. 6. In other words, it is possible to configure the handpiece treatment tip 20 so that at least two or more needles 240 are positioned inside one tubular needle guide 280.

[0036] Two or more needles 240 positioned inside one tubular needle guide 280 may be configured as at least one anode needle and at least one cathode needle. For example, in a configuration in which two needles 240 are positioned inside one tubular needle guide 280 as shown in FIG. 6(a), one needle can be configured as an anode (+ electrode) to which a (+) voltage is applied, and the remaining needle can be configured as a cathode (- electrode) to which a (-) voltage is applied.

[0037] 6(b), in a configuration in which three needles 240 are positioned in a row in one tubular needle guide 280, the needles 240 may be configured with one anode needle and two cathode needles, or two anode needles and one cathode needle. In this case, the needles 240 can be arranged with the polarity of the needle 240 positioned in the center being opposite to the polarity of the needles 240 positioned on either side.

[0038] The guide portion 28 including the plurality of tubular needle guides 280 may be formed as a single object (integral) with the cap portion 22 by injection molding together with the cap portion 22 when the cap portion 22 is manufactured. Alternatively, the guide portion 28 may be manufactured separately from the manufacturing process of the cap portion 22 and assembled to the cap portion 22 in a separate assembly process (not shown). In some cases, only the guide portion 28 may be made of a transparent resin material. In this case, the practitioner can directly visually check the state of the needles 240 positioned in each tubular needle guide 280, for example, the deformation or contamination of the needles 240, allowing for timely replacement of deformed microneedles 240 and disinfection or cleaning of contaminated microneedles 240.

[0039] Among the tubular needle guides 280 arranged in one or more rows in the first direction, the tubular needle guides 280 arranged in the same row may be formed to have different lengths. For example, as illustrated in the drawings (FIGS. 3 to 5), when a plurality of tubular needle guides 280 are arranged in a row along the first direction, the tubular needle guides 280 may be formed to have different lengths. Here, two or more needles 240 located inside the same tubular needle guide 280 may have the same length, and needles 240 located inside different tubular needle guides 280 may have different lengths. In this embodiment, the length of the needle means the length from the base plate 244 to the tip (242, the thin, pointed end portion) of each needle 240.

[0040] As a preferred example, an imaginary line (L1, see FIG. 5) connecting the needle inlet / outlet ends 282 of the tubular needle guides 280 arranged in the same row in the first direction may be formed to have a predetermined curvature. More preferably, the tubular needle guides 280 arranged in the first direction may be formed in a comb shape (see FIGS. 3 and 5) in which the lengths of the tubular needle guides 280 located at the outermost sides are the longest and gradually decrease toward the center. For reference, the needle inlet / outlet end 282 refers to the end (the uppermost end in the drawing) of each needle guide 280, and refers to the portion formed with a hole through which the tip end 242 of each needle 240 passes or enters / exits when the needle 240 located within the needle guide 280 is withdrawn to the outside of the needle guide 280 or when the withdrawn needle 240 returns to its original storage position (treatment standby position).

[0041] In the embodiment, the curvature of the virtual line L1 can be determined from a design that takes into consideration the average head size and head surface curvature of people by gender and age group, and in some cases, treatment tips may be provided in various types with different curvatures of the virtual line L1, allowing the practitioner to select a treatment tip that is suitable for the head shape of the person being treated and perform the optimal treatment.

[0042] The comb-shaped tubular needle guides 280 arranged in a row have relatively long lengths at the outermost positions on both sides and gradually decrease in length toward the center. This geometric shape corresponds to the curved contour of the scalp surface, and during treatment, the needle inlet / outlet ends 282 of the tubular needle guides 280 can stably and uniformly contact the scalp surface without lifting. When the needles 240 are withdrawn, each needle 240 can be withdrawn the same length from the needle inlet / outlet end 282 of the corresponding tubular needle guide 280. Furthermore, as mentioned above, the guide unit 28 has a geometric shape corresponding to the curved contour of the scalp surface. Therefore, during treatment on the scalp, the needles 240 withdrawn the same length from the needle inlet / outlet ends 282 can penetrate the skin tissue to the same depth and transmit high frequency waves.

[0043] Figure 7 is a plan view of a guide unit illustrating various arrangements of tubular needle guides, and as shown in Figure 7(a), multiple tubular needle guides 280 may be arranged in a single row in the first direction, or as shown in Figure 7(b), they may be arranged in two rows in the first direction, or as shown in Figure 7(c), they may be arranged in three rows in the first direction.

[0044] Although not shown, the multiple tubular needle guides 280 may be arranged in four or more rows in the first direction. However, when the multiple tubular needle guides 280 are arranged in two or more rows in the first direction, it is preferable to arrange the tubular needle guides 280 in a matrix form, so that the width w1 in the first direction of the drawing is greater than the width w2 in the second direction perpendicular to the first direction (w1>w2), which is advantageous for creating a parting to ensure a surgical field.

[0045] 8 and 9 are diagrams respectively showing a preparation process for performing an invasive high-frequency treatment on the scalp using a treatment chip according to an embodiment of the present invention, and a state in which the invasive high-frequency treatment is performed on the scalp.

[0046] First, as shown in FIG. 8, the handpiece treatment tip 20 according to the embodiment has a guide portion 28 that is either integral with or detachable from the tip of the cap portion 22 and has a comb-like shape with a predetermined curvature. Therefore, when performing a scalp treatment, the comb-shaped guide portion 28 can comb the treatment area, as shown in FIG. 8. This ensures a clear view of the treatment area covered with hair, thereby improving the accuracy of the treatment. Furthermore, the guide portion 28, including the tubular needle guide 280, has a geometric shape that corresponds to the contour of the scalp surface, so that the needle inlet / outlet ends 282 at the tips of the guide portions 28 can contact the scalp surface S without lifting up, as shown in FIG. 9. In this state, each of the needles 240 is pulled out to the same length from the corresponding tubular needle guide 280, allowing the needles 240 to penetrate the scalp to the same depth and apply high-frequency stimulation.

[0047] The above description merely illustrates the technical concept of the present invention, and various modifications and variations may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed herein are intended to illustrate, rather than limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical concepts within the scope of the claims should be interpreted as being within the scope of the present invention. [Explanation of symbols]

[0048] 1. Invasive high-frequency therapy device, 10 Handpieces 12 Drive shaft 20 Treatment Tips 22 Cap part 22a Top cap 22b Bottom cap 24 Needle section 26 Lift platform 28 Guide section 240 Needle 242 Needle tip 244 PCB 280 Tubular Needle Guide 282 Needle inlet / outlet end L1 Imaginary line connecting needle tips S Scalp surface

Claims

1. In the treatment tip for handpieces of invasive high-frequency treatment devices, a needle portion including a plurality of needles; a guide portion including a plurality of tubular needle guides corresponding to the needles; the plurality of tubular needle guides are arranged in one or more rows; The needles are positioned within the plurality of tubular needle guides; A treatment tip for a handpiece, characterized in that an imaginary line connecting the needle entrance and exit ends of tubular needle guides arranged in one row has a curvature.

2. a cap portion detachably provided at the tip of the handpiece; The treatment tip for a handpiece according to claim 1 , further comprising: a lifting platform on which the needle portion is mounted and which is movably disposed inside the cap portion.

3. The treatment tip for a handpiece according to claim 2 , wherein the guide portion is formed at a tip end of the cap portion.

4. The treatment tip for a handpiece according to claim 3 , wherein the guide portion is integrally formed with the cap portion at a tip end of the cap portion.

5. The treatment tip for a handpiece according to claim 3 , wherein the guide portion is configured at a tip end of the cap portion in a form that is detachable from the cap portion.

6. The treatment tip for a handpiece according to claim 1, wherein the tubular needle guides arranged in one row have relatively long lengths at the outermost sides and gradually decrease in length toward the center.

7. The treatment tip for a handpiece according to claim 1 , wherein at least two or more needles are positioned inside one tubular needle guide.

8. The treatment tip for a handpiece according to claim 7 , wherein the at least two or more needles positioned inside one tubular needle guide have the same length.

9. The treatment tip for a handpiece according to claim 1 , wherein, during a needle withdrawal operation, the plurality of needles are withdrawn to the same length from the needle entry / exit ends of the corresponding tubular needle guides.

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