Treatment tips and handpieces for scalp care

Abstract

To provide a treatment tip and handpiece for scalp care that include this tip, while also featuring a cooling function that cools the skin of the treatment area during high-frequency immersion treatment, tightening skin tissue, alleviating pain, and providing a soothing effect on the skin, all while being compact in design for easy storage, distribution, management, and assembly. [Solution] The treatment tip of the present invention includes a cap portion having a tip surface formed with multiple needle entry and exit holes, a cooling plate portion attached to the cap portion, and a pair of terminal portions located on both sides of the cap portion and accommodating both ends of the cooling plate portion, and is characterized by its ability to effectively cool the skin of the treatment area during high-frequency immersion treatment, and its compact design makes it easy to store, distribute, manage, and assemble as a consumable item.

Description

Technical Field

[0001] The present invention relates to an application tip and a handpiece for scalp care, and more particularly, to an application tip and a handpiece for scalp care that treat the scalp based on the principle of inserting fine needles into the scalp and applying electrical stimulation (high-frequency stimulation).

Background Art

[0002] Recently, one of the skin treatment methods that has been in the spotlight is micro needle treatment. This is a method of directly inserting needles with a very fine diameter into the skin to form treatment columns, creating micro-injuries to promote skin regeneration by applying high-frequency RF, and inducing cell growth as the micro-injuries heal, thereby maximizing the natural healing and regeneration of the skin. An immersion type high-frequency treatment device for micro needle treatment is generally composed of a handpiece, an application tip, a controller, etc. Fine needles that function as electrodes are provided on the application tip so as to be linearly movable. Thus, when the device is operated with the application tip applied to the treatment site, the fine needles simultaneously move and are inserted into the skin, and in that state, an electrical stimulation is applied to the corresponding skin layer by receiving an input of a high-frequency signal.

[0003] Micro needle treatment is also applicable to the scalp. When micro needle treatment is applied to the scalp, the dermal tissue of the scalp can be newly constructed and rearranged. In addition, it is possible to minimize the rupture of hair follicles and prevent deformation and necrosis of scalp cells. Furthermore, it can stimulate the dermis of the scalp to recover collagen synthesis and scalp damage, and has the effect of stretching wrinkles.

[0004] On the other hand, when improving and treating the skin with an immersion-type radiofrequency therapy device, heat is generated during the process of transmitting or applying various types of stimuli to the skin. The generated heat can induce damage to skin tissue, including burns on the skin surface, so it must be managed at an appropriate level (a level that can prevent burns). Furthermore, although microneedling is a procedure that minimizes skin damage and pain, the patient inevitably feels pain from the immersion of the microneedles. Therefore, cooling technology is applied to immersion-type radiofrequency therapy devices to manage the heat and pain generated during the procedure.

[0005] As an example of a conventional immersion-type high-frequency treatment device to which cooling technology is applied, Patent Document 1 can be cited. Patent Document 1 includes a cooling head unit arranged on a handpiece and a cooling plate unit arranged on a treatment tip. The cooling head unit includes a heat exchange block and a cooling plate socket, and the heat transfer plate of the cooling plate unit is mechanically coupled to the cooling plate socket so as to be able to transfer heat. However, as mentioned above, if a mechanical coupling is implemented through a thermal transfer plate, the size of the thermal transfer plate increases, which not only increases manufacturing costs but also increases the possibility of malfunctions during storage, distribution, and assembly. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Korean Registered Patent Publication No. 10-2350161 [Overview of the project] [Problems that the invention aims to solve]

[0007] The technical problem that this invention aims to solve is to provide a treatment tip for a scalp care handpiece and a handpiece containing the same, which has a cooling function that cools the skin of the treatment area during high-frequency immersion treatment, tightens the skin tissue, alleviates pain, and exhibits a skin-soothing effect, while also having a compact design that makes it easy to store, distribute, manage, and assemble. [Means for solving the problem]

[0008] The treatment tip for a scalp care handpiece of the present invention is characterized by comprising: a cap portion having a tip surface formed with a plurality of needle entry and exit holes; a cooling plate portion attached to the cap portion; and a pair of terminal portions located on both sides of the cap portion and accommodating both ends of the cooling plate portion.

[0009] A portion of the cooling plate is positioned on the tip surface, and its entire surface is exposed to the outside, so that it comes into direct contact with the skin during treatment to cool the treatment area. Both ends of the cooling plate are inserted into and fixed inside the terminal, and when connected to the handpiece body, they come into close contact with the ends of the cooling plate described later inside the terminal, thereby providing cooling.

[0010] The cooling plate portion of the present invention may preferably include a flat skin cooling plate disposed on the tip surface and having a plurality of needle through holes formed therein corresponding to the needle entry and exit holes, and a pair of cold and heat transfer plates that extend integrally on both sides of the skin cooling plate. Here, the heat transfer plate may include a terminal region that is inserted into and fixed inside the terminal portion, and an exposed region that is located between the terminal region and the skin cooling plate and is exposed to the outside.

[0011] The cap portion of the present invention may be provided with mounting guides that protrude from both sides of the tip surface and the terminal portion, preventing incorrect assembly of the cooling plate portion and guiding it so that it can be fixed in the designated position without shaking after assembly.

[0012] A pair of snap joints may be formed on the open end side of the cap portion located on the opposite side of the tip surface of the present invention, facing each other and in a position that does not overlap with the pair of terminal portions.

[0013] The present invention provides a scalp care handpiece comprising a handpiece body equipped with a cooling section and a treatment tip detachably attached to the tip of the handpiece body in a cartridge manner, wherein the treatment tip is the treatment tip of the scalp care handpiece, and the cooling section includes a cooling plate, and a cooling terminal is integrally configured on the cooling plate, which is inserted into the terminal portion of the treatment tip and is in close contact with the cooling plate portion.

[0014] The cooling unit of the present invention may include a heat exchange block configured such that cooling water flows into it and the incoming cooling water is discharged to the outside via the inside, a pair of Peltier elements arranged in close contact with a first surface and a second surface facing the first surface of the heat exchange block, and a pair of cooling plates arranged in close contact with the heat-absorbing surface of each Peltier element.

[0015] The heating surfaces of the pair of Peltier elements of the present invention may be in close contact with the first and second surfaces of the heat exchange block, and the cooling plate may be directly coupled to the heat exchange block with the Peltier elements in between.

[0016] The heat exchange block in which the cooling plate of the present invention makes heat exchangeable contact has a shaft through hole in the center, a drive unit for raising and lowering the needle portion of the treatment tip is located behind the cooling unit, and a drive shaft connecting the drive unit and the needle portion is located in the shaft through hole, thereby improving the efficiency of the space.

[0017] Corresponding to a pair of snap joints formed on the treatment tip of the present invention, the handpiece body may be provided with a pair of release buttons.

[0018] The release button part of the present invention may include a release button arranged so that a part thereof is exposed to the outside through a button hole formed in the body case of the handpiece body, an elastic connector formed on one side of the release button and having an end fixed to a designated position inside the body case, a fastener formed on the other side of the release button on the opposite side of the elastic connector and coupled to the snap joint when the treatment chip is coupled, and an elastic support arranged inside the body case and elastically supporting a part of the release button so as to protrude outside the body case through the button hole.

Advantages of the Invention

[0019] The handpiece for scalp care according to the present invention can provide a function of effectively cooling the skin of the treatment site during high-frequency immersion treatment. Further, the treatment chip is provided with a terminal part, and the terminal on the handpiece body side and the terminal on the treatment chip side are connected in a state where heat transfer is possible inside the terminal part, so that energy loss can be prevented or minimized in the process of transferring cooling energy to the treatment chip. Furthermore, different from the conventional configuration in which the terminal (cold and heat transfer plate) extends to a certain length in the treatment chip for heat transferable contact with the handpiece body side, the present invention integrally forms a terminal part in the treatment chip and removes (deletes) the terminal part protruding to the outside from the treatment chip, having the advantage that storage, distribution, management, and assembly of the treatment chip corresponding to consumables are easy with a compact design.

Brief Description of the Drawings

[0020] [Figure 1] It is a perspective view of a handpiece for scalp care according to an embodiment of the present invention. [Figure 2] It is a separated perspective view of the present invention showing a state where the treatment chip is separated from the handpiece body in FIG. 1. [Figure 3] It is a combined cross-sectional view of the handpiece for scalp care according to an embodiment of the present invention as viewed in the direction of line A-A in FIG. 1. [Figure 4]It is a separated perspective view of an operation chip applied to a handpiece for scalp care according to an embodiment of the present invention. [Figure 5] It is a cutaway perspective view of an operation chip applied to a handpiece for scalp care according to an embodiment of the present invention, viewed from the direction of line B-B in FIG. 2. [Figure 6] It is a view showing an enlarged terminal portion formed on the cap portion of the operation chip, where (a) is a perspective view of the terminal portion and (b) is a cutaway perspective view of the terminal portion. [Figure 7] It is a perspective view for showing the internal configuration of a handpiece body applied to scalp care according to an embodiment of the present invention. [Figure 8] It is a view showing the extraction of the main components in FIG. 7. [Figure 9] It is a separated perspective view of the cooling portion separately extracted and shown separately in FIG. 8. [Figure 10] It is a cross-sectional view of the main part of the present invention (a cross-sectional view viewed from the direction orthogonal to line A-A in FIG. 1) for showing the coupling relationship between the operation chip and the handpiece body.

Mode for Carrying Out the Invention

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail. The embodiments are provided to more fully explain the present invention to those having ordinary knowledge in the relevant technical field. The following embodiments can be modified into various different forms, and the scope of the present invention is not limited to the following embodiments. Rather, these embodiments are provided to further enrich and complete the present disclosure and fully convey the idea of the present invention. The terms used in this specification are used to explain specific embodiments and do not limit the present invention. Also, in this specification, the singular form can include the plural form unless the context clearly indicates otherwise. In this application, terms such as “includes,” “equip,” and “have” are intended to specify the presence of features, figures, steps, actions, components, parts, or combinations thereof of the invention, and should not be understood to preemptively exclude the presence or possibility of adding one or more other features, figures, steps, actions, components, parts, or combinations thereof.

[0022] Furthermore, the statement that one component is "in front of," "behind," "above," or "below" another component includes, unless otherwise specified, not only being directly adjacent to another component in front of, behind, above, or below it, but also cases where another component is positioned in between. Additionally, the statement that one component is "connected" to another component includes, unless otherwise specified, not only being directly connected to each other, but also being indirectly connected to each other.

[0023] The drawings are intended solely to illustrate the concept of the present invention and should not be construed as limiting the scope of the invention. Furthermore, relative thicknesses, lengths, and sizes in the drawings may be exaggerated for explanatory purposes and clarity.

[0024] The handpiece according to an embodiment of the present invention is a handpiece for an immersion-type high-frequency therapy device for scalp care that treats the scalp by applying electrical stimulation (high-frequency stimulation) by inserting fine needles into the scalp. The handpiece according to the embodiment can alleviate and improve hair loss or graying symptoms by inserting needles (fine needles) into the patient's scalp and transmitting high-frequency RF through the inserted needles to improve the scalp environment.

[0025] Preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Figure 1 is a perspective view of a scalp care handpiece according to an embodiment of the present invention, and Figure 2 is a separated perspective view of the present invention showing the treatment tip separated from the handpiece body. Figure 3 is a combined cross-sectional view of the scalp care handpiece according to an embodiment of the present invention, viewed from the direction of line AA in Figure 1. The overall configuration of the scalp care handpiece according to an embodiment of the present invention will be examined with reference to these drawings.

[0026] As shown in Figures 1 to 3, the scalp care handpiece 1 according to the embodiment includes a handpiece body 10. The handpiece 1 according to the embodiment is equipped with a treatment tip 20 attached to the tip of the handpiece body 10. The treatment tip 20 is detachably attached to the tip of the handpiece body 10 in a cartridge manner and can be easily separated from the handpiece body 10 and replaced as needed. The treatment tip 20 is equipped with multiple needles 240 to which high-frequency RF current is applied from the handpiece body 10. The multiple needles 240 can penetrate the target skin tissue of the person being treated and transmit the high-frequency RF. The treatment tip 20 can be provided in various types with different numbers and arrangements of 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 body 10.

[0027] The handpiece body 10 is connected by a cable to the main body (not shown) of a high-frequency therapy device and can exchange signals or information. The handpiece body 10 includes a drive unit 16 that linearly drives the needle portion 24 inside the treatment tip 20. The handpiece body 10 may also include a high-frequency generator (not shown) that generates high-frequency RF and applies it to the needle portion 24 containing the needle 240. The handpiece body 10 may also be equipped with a control unit (not shown in reference numerals) and a cooling unit 14.

[0028] The control unit may include various control elements and a circuit board on which they are mounted. The control unit is electrically connected to the drive unit 16, the high-frequency generation unit, and the cooling unit 14, and can control them. The cooling unit 14 can generate cooling energy from externally supplied cooling water and an electric current applied under the control of the control unit, and transmit it to the treatment tip 20. The drive unit 16, under the control of the control unit, reciprocates the needle section 24, which includes multiple needles 240, within a certain stroke range in a specific direction (up and down in the drawing). The drive unit 16 may be, for example, a motor. Of course, it is not limited to a motor, and various forms such as pneumatic actuators and solenoid-type actuators can be applied as the drive unit.

[0029] The high-frequency generator, under the control of the control unit, converts the power supplied by the main unit into high-frequency pulses. The high-frequency generator can convert the power supplied by the main unit into high-frequency pulses and transmit them to multiple needles 240. As a result, the needles 240 can penetrate the target skin tissue of the patient and apply high-frequency RF stimulation to that skin tissue. The handpiece body 10 may be equipped with an externally exposed device operation button 19. The control unit can be electrically connected to the device operation button provided on the handpiece body 10. As a result, when a user operates a button on the handpiece body 10, the control unit recognizes this and generates a corresponding control signal, which is transmitted to the drive unit 16 and the high-frequency generator and cooling unit 14, thereby controlling the operation of the drive unit, the high-frequency generator and cooling unit.

[0030] A drive shaft 17 may be connected to the drive unit 16. Part of the drive shaft 17 can be exposed outside the tip of the handpiece body 10. The drive shaft 17 exposed at the tip of the handpiece body 10 can be connected to a holder 26 that is located inside the treatment tip 20 and mounts the needle portion 24. This allows the holder 26 connected to the drive shaft 17 and the needle portion 24 mounted thereon to be moved in a specific direction (up and down in the drawing) when the drive unit 16 is operated.

[0031] Figures 4 and 5 show the treatment tip of a scalp care handpiece according to an embodiment of the present invention. Figure 4 is a separated perspective view of the treatment tip, and Figure 5 is a cross-sectional perspective view of the treatment tip as seen from the direction of line BB in Figure 2. As shown in Figures 4 and 5, the treatment tip 20 includes a needle portion 24 and a cap portion 22. The needle portion 24 is equipped with a plurality of needles 240 that penetrate the skin tissue and apply high-frequency stimulation, and the cap portion 22 forms the outer shape of the treatment tip 20 and can house the needle portion 24 inside. The cap portion 22 may be made of an insulator such as plastic and may be detachably attached to the tip of the handpiece body 10.

[0032] The needle portion 24 of the treatment tip 20 includes a plurality of needles 240 and a base plate 244 to which the plurality of needles 240 are attached. The base plate 244 may be attached to a holder 26, which may be arranged inside the cap portion 22 so as to be movable in a specific direction (commercial direction in the drawing). Within the cap portion 22, the movement of the holder 26 in a specific direction can be stably realized without shaking by a lifting guide 27 provided at the lower inside of the cap portion 22. The holder 26 may be connected to a drive shaft (17, see Figure 3) protruding from the handpiece body 10. The holder 26 may be mounted on a needle section 24 including a needle 240 and a substrate 244. As a result, when the drive unit is activated, the holder 26 connected to the drive shaft 17 and the needle section 24 mounted on the holder 26 can move relative to the fixed cap section 22 in a specific direction (up and down in the drawing).

[0033] An intermediate substrate 274 may be attached to a lifting guide 27 fixedly positioned at the lower inside of the cap portion 22, which electrically connects the handpiece body 10 and the needle portion 24 of the treatment tip 20. The surface of the intermediate substrate 274 facing the needle portion 24 is electrically connected to the substrate 244 of the needle portion 24 via a connecting pin P, and the other side may be electrically connected to a high-frequency supply terminal 11 (see Figure 2) protruding from the tip of the handpiece body 10. When the treatment tip 20 is separated from the handpiece body 10, the high-frequency supply terminal 11 and the intermediate circuit board 274 may be physically separated, and their electrical connection may be released. Conversely, when the treatment tip 20 is attached to the handpiece body 10, the high-frequency supply terminal 11 is electrically connected to the intermediate circuit board 274, so that the high-frequency current supplied by the handpiece body 10 can be stably supplied to the needle portion 24 through the intermediate circuit board 274.

[0034] The tip of the cap portion 22 may be provided with a tip surface 220. The tip surface 220 may have multiple needle entry / exit holes 224, each corresponding to one of the multiple needles 240. The multiple needles 240 can be extended outward by a predetermined length through the needle entry / exit holes 224 by the relative movement of the needle portion 24 in a specific direction with respect to the cap portion 22, and can either penetrate the skin tissue to transmit high-frequency waves or return to a treatment standby position inside the cap portion 22. The multiple needles 240, which function as electrodes for transmitting high-frequency waves to the skin layer, can be broadly divided into two groups. Needles belonging to the same group have the same polarity, while needles belonging to different groups may have opposite polarities. For example, if the needles belonging to one of the two groups form the positive electrode (+ electrode), then the needles belonging to the other group can form the negative electrode (- electrode). In the treatment standby position, the multiple needles 240 are located inside the cap portion 22 and are not exposed to the outside. When the practitioner operates the device and applies a command to start treatment, the drive unit 16 moves in a specific direction, and the multiple needles 240 are simultaneously pulled out to the outside by a certain length through the needle entry / exit holes 224. As a result, the needles 240 can penetrate the skin being treated and apply high-frequency stimulation.

[0035] The treatment tip 20 may be equipped with a pair of terminal portions 23. The pair of terminal portions 23 may be formed to demarcate a predetermined space (hereinafter referred to as the "heat conduction passage") on one side of the cap portion 22 and the other side facing it. The pair of terminal portions 23 that demarcate the heat conduction passage can be integrally formed with the cap portion 22. For example, they can be formed in a single object form (integrated with the cap portion) on one side of the cap portion 22 and the other side of the opposing portion through injection molding. A cooling plate portion 25 may be attached to the cap portion 22 of the treatment tip 20. The cooling plate portion 25 receives cooling energy from the handpiece body 10 and plays a role in cooling the skin being treated. A portion of the cooling plate portion 25 is positioned on the tip surface 220 and exposed to the outside, while the other portion is inserted into and fixed in the terminal portion 23. When connected to the handpiece body 10, the cooling plate portion 25 can be in close contact with a portion of the cooling portion 14, which will be described later, within the terminal portion 23, thereby providing cooling and heating.

[0036] Of the cooling plate section 25, the portion positioned on the tip surface 220 and exposed to the outside directly contacts the skin being treated during high-frequency treatment to cool the treatment area. This prevents burns caused by high-frequency heat, tightens the skin tissue in the treatment area, and alleviates pain during treatment. It also has a soothing effect on the skin in the treatment area. The cooling plate section 25 may consist of a skin cooling plate 250 and a heat transfer plate 252. The skin cooling plate 250 is positioned on the tip surface 220 and is the part that comes into direct contact with the skin during high-frequency treatment, while the heat transfer plate 252 may consist of a pair that extend integrally on both sides of the skin cooling plate 250. The heat transfer plate 252 acts as an intermediate intermediary, receiving cooling energy from the cooling section 14 and providing it to the skin cooling plate 250.

[0037] The skin cooling plate 250 may be configured as a flat plate having an area corresponding to the area of ​​the tip surface 220 of the cap portion 22. The skin cooling plate 250 has a plurality of needle through holes 254 through which a plurality of needles 240 enter and exit, and each needle through hole 254 may be arranged to match the needle entry / exit holes 224 formed on the tip surface 220. The diameter of the needle through holes 254 may also be formed to be the same diameter as the needle entry / exit holes 224. The heat transfer plate 252 can be divided into a terminal region 252b and an exposed region 252a. The terminal region 252b is the portion that is inserted into and fixed to the aforementioned terminal portion 23, which is integrally formed on both sides of the cap portion 22, while the exposed region 252a is the portion that is located between the terminal region 252b and the skin cooling plate 250 and is exposed to the outside. The terminal region 252b and the exposed region 252a may be formed with the same thickness and width, taking into consideration the heat conduction characteristics.

[0038] A mounting guide 225 may be formed on the cap portion 22 of the treatment tip 20. The mounting guide 225 is formed as a pair of rail structures protruding from both sides of the tip surface 220 and across the terminal portion 23, and can form a space on which the heat transfer plate 252 can be stably mounted and fixed. The mounting guide 225 prevents incorrect assembly when attaching the cooling plate portion 25 and functions to ensure that the cooling plate portion 25 is fixed in the designated position without shaking after attachment. The cooling plate portion 25 can be made of a metal material with high thermal conductivity and corrosion resistance, taking into consideration heat transfer efficiency, cooling efficiency due to skin contact, and corrosion resistance. As a preferred example, the cooling plate portion 25 may be made of aluminum. Of course, it is not limited to this.

[0039] In Figures 4 and 5, reference numeral 28 indicates a snap joint provided on the cap portion 22 for stable connection with the handpiece body 10. The snap joint 28 may consist of a pair integrated with the cap portion 22 on the open end side of the cap portion 220, opposite the tip surface 220. Preferably, they may be positioned facing each other on the open end side, as illustrated in the drawings, and not overlapping with a pair of terminal portions 23. In Figure 5, the symbol S indicates a spring interposed between the holder 26 and the lifting guide 27, which generates a restoring force to return the holder 26 to the treatment standby position. Figure 6 is a magnified view of the terminal portion formed on the cap of the treatment tip. Figure 6(a) is a perspective view of the terminal portion, and Figure 6(b) is a perspective view of the incision of the terminal portion.

[0040] As shown in Figure 6, the terminal portion 23 provided on the treatment tip 20 provides a space in which the cooling plate portion 25 and a part of the cooling portion 14 (cooling terminal, 145), which will be described later, can make precise and tight contact with each other. The terminal portion 23 includes a trench-shaped lower receptor 230 recessed inward from the cap portion 22 and an upper cover 234 covering it, and has a three-dimensional structure with one side facing the tip surface 220 and the other side facing the handpiece body 10 open. When assembling the treatment tip 20, one surface of the terminal region 252b constituting the heat transfer plate 252 may be in close contact with the inner surface of the upper cover 234 and fixed in place. When the terminal region 252b is inserted into and fixed in the terminal portion 23, a connection space s of sufficient volume is formed between the terminal region 252b and the bottom of the lower receptor 230, allowing a part of the cooling portion 14 (cooling terminal, 145) to be in tight, close contact with the terminal region 252b.

[0041] Wedge-shaped projections 235 and holes 255 are formed on the inner surface of the upper cover 234 and the terminal area 252b, respectively, for tight fastening between them. A step 231 is formed on one open end of the lower receptor 230 to ensure that a part of the cooling section 14 (cooling terminal, 145) stops precisely in the planned position. An inclined guide surface 232 is formed on the bottom surface of the lower receptor 230 facing the upper cover 234. The inclined guide surface 232 plays the role of guiding a portion 145 (see Figure 1) of the cooling section 14 to gradually move toward the terminal region 252b during the process of insertion into the terminal section 23, so that it can stably adhere to the terminal region 252b. As illustrated in Figure 6(b), the inclined guide surface 232 is formed by inclining upward toward the lower receptor 230 from the other open end of the lower receptor 230 into which a portion of the cooling section 14 (cooling terminal, 145) is inserted.

[0042] Figures 7 to 9 show the handpiece body of a scalp care handpiece according to an embodiment of the present invention. Figure 7 is a perspective view showing the internal structure of the handpiece body, and Figure 8 is a diagram showing the main components extracted from Figure 7. Figure 9 is a separated perspective view of the cooling section, which is shown separately extracted from Figure 8. Figures 7 to 9 are shown together with Figure 3. The handpiece body 10 includes a body case 12 and a cooling unit 14 located inside it. The cooling unit 14 includes a cooling plate 144, and cooling terminals 145 may be integrally formed on the cooling plate 144. When the treatment tip 20 is coupled to the handpiece body 10, the cooling terminals 145 are inserted into the terminal portion 23 of the treatment tip 20, and can come into close contact with the terminal region 252b of the aforementioned heat transfer plate 252, enabling heat transfer.

[0043] The cooling unit 14 includes a heat exchange block 140, a pair of Peltier elements 142, and a pair of cooling plates 144. Cooling water flows into the heat exchange block 140, and a cooling water line is formed through which the incoming cooling water is discharged to the outside via the inside. The pair of Peltier elements 142 are arranged in close contact with the first surface and the second surface opposite the first surface of the heat exchange block 140. The cooling plates 144 are then arranged in close contact with each Peltier element 142. When an electric current is applied to the Peltier element 142, it absorbs heat on one side due to the Peltier effect, causing cooling, while generating heat on the opposite side. In this embodiment, a cooling plate 144 is in close contact with the heat-absorbing surface (heat-absorbing surface) of each Peltier element 142, and the heat-generating surface (heat-generating surface) of each Peltier element 142, located on the opposite side of the heat-absorbing surface, is positioned in close contact with the first and second surfaces of the heat exchange block 140, respectively.

[0044] With this configuration, when current is applied to the Peltier elements 142 in accordance with the device operation command, the cooling action occurring on the heat-absorbing surface of each Peltier element 142 cools the cooling plate 144 that is in close contact with the heat-absorbing surface. Furthermore, the heat generated on the heat-generating surface of each Peltier element 142 is released to the outside through cooling water circulating inside the heat exchange block 140 through a heat exchange action with the heat exchange block 140, so that the cooling plate 144 can maintain a continuously cooled state. A cooling terminal 145 is integrally formed on the cooling plate 144, and the cooling terminal 145 may extend to a certain length in the direction of the treatment tip 20. Therefore, when the treatment tip 20 is coupled to the handpiece body 10, the cooling terminal 145 is inserted into the terminal portion 23 of the treatment tip 20, and can make close contact with the heat transfer plate 252 within the terminal portion 23 to enable heat transfer (see the partially enlarged view in Figure 3). As a result, the cooling energy generated by the Peltier element 142 is transmitted through the heat transfer plate 252 of the treatment tip 20 to the skin cooling plate 250, thereby effectively cooling the treatment area during high-frequency treatment. Consequently, burns caused by high-frequency heat generated during the treatment process are prevented, and pain during treatment can be alleviated. In addition, the cooling effect also soothes the skin in the treatment area.

[0045] The cooling plate 144 and the heat exchange block 140 are made of a metal material with high thermal conductivity. Since cooling water circulates inside the heat exchange block 140, a metal material with corrosion resistance is preferable. As a preferred example, the cooling plate 144 is made of copper or aluminum. The heat exchange block 140 is made of aluminum, which has high thermal conductivity and corrosion resistance. Of course, it is not limited to these. The cooling plate 144 is directly connected to the heat exchange block 140 with the Peltier element 142 in between. For example, the cooling plate 144 is fastened to the heat exchange block 140 with fastening members such as bolts, with the Peltier element 142 in between, and is stably fixed. In this case, it is preferable to use fastening members made of engineering plastic material to prevent heat loss while ensuring sufficient fastening strength between the cooling plate 144 and the heat exchange block 140.

[0046] In the scalp care handpiece 1 according to the embodiment, the heat exchange block 140, which the cooling plate 144 makes contact with in a heat exchange manner, is formed as a hollow structure with a shaft through hole 141 formed in the center. The drive unit 16 that raises and lowers the needle portion 24 of the treatment tip 20 is positioned behind the heat exchange block 140. At this time, by configuring the drive shaft 17 connecting the drive unit 16 and the needle portion 24 to be located in the shaft through hole 141, the effort to separately secure space for the drive shaft 17 can be eliminated.

[0047] On the other hand, the body case 12 is configured such that a cap member (not indicated by a symbol) is attached to the tip (upper part in the drawing) of a unit case (not indicated by a symbol) (not indicated by a symbol) which is divided into two parts and interconnected. In this case, a hole (not indicated by a symbol) is formed in the cap member through which the drive shaft 17 and a plurality of high-frequency supply terminals 11 pass, and a high-frequency output board (not indicated by a symbol) that transmits high-frequency current to the aforementioned intermediate board 274 through the high-frequency supply terminals 11 is arranged.

[0048] Figure 10 is a cross-sectional view of the main part of the present invention (viewed from a direction perpendicular to line AA in Figure 1) to show the relationship between the treatment tip and the handpiece body. As shown in Figure 10, the handpiece body 10 is provided with a pair of release button sections 18 that either fix the treatment tip 20 in place and maintain the connected state, or release the connection so that the treatment tip 20 can be separated from the handpiece body 10. The release button sections 18 are configured to correspond to a pair of snap joints 28 formed on the treatment tip 20, and consist of a release button 180, an elastic connector 182, a fastener 184, and an elastic support 186.

[0049] The release button 180 is positioned so that a portion of it is exposed to the outside through a buttonhole (reference numeral omitted) formed in the body case 12 of the handpiece body 10. The elastic connector 182 is connected to one side of the release button 180, with its end fixed to a designated position inside the body case 12. The fastener 184 is formed on the other side of the release button 180, opposite the elastic connector 182, and engages with the snap joint 28 when the treatment tip 20 is attached. The ends of the snap joint 28 and the fastener 184 each have hook-shaped fastening pieces (not shown) that protrude opposite each other so that they can interlock and connect when the treatment tip 20 is attached. The elastic support 186 is located inside the body case 12 and provides elasticity so that a portion of the release button 180 protrudes to the outside of the body case 12 through the buttonhole.

[0050] As a preferred example, as illustrated in the drawing (Figure 10), the elastic support 186 consists of a support base 187 positioned inside the body case 12 relative to the release button 180, and a spring 188 provided between the support base 187 and the release button 180 to add elasticity in order to push the release button 180 outwards from the body case 12. Of course, it is not limited to this, and the same function can be realized using a variety of elastic components and support structures.

[0051] The following describes the effects exhibited by the scalp care handpiece according to the embodiment of the present invention described above, in relation to the operation of the handpiece. As shown in the attached drawings, the handpiece 1 according to the embodiment has a treatment tip 20 that is detachably attached to the tip of the handpiece body 10 in a cartridge manner. The treatment tip 20 is provided in various types with different numbers and arrangements of needles 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 body 10. The high-frequency treatment using the handpiece 1 according to the embodiment is performed by operating the device operation button while the tip of the treatment tip 20 is in contact with the treatment area (skin to be treated). When the button on the handpiece body 10 is operated, the control unit recognizes this and generates a corresponding control signal, which is transmitted to the drive unit 16, the high-frequency generation unit and the cooling unit 14, thereby realizing the operation of the device for high-frequency treatment.

[0052] The drive unit 16 operates in a direction that pulls out the needle portion 24 located on the treatment tip 20 when it receives a treatment start command from the control unit, and the high-frequency generation unit converts the power supplied by the main body into high-frequency pulse form and transmits it to the needle of the needle portion 24. In addition, the cooling unit 14 operates a Peltier element 142 in response to the current applied under the control of the control unit and generates cooling energy. When the control unit operates the drive unit 16, the multiple needles 240 of the needle unit 24 are pulled out from the tip of the treatment tip 20 by a predetermined length, allowing them to penetrate the skin tissue of the treatment area. In this state, the multiple needles 240 receive high-frequency current from the high-frequency generator, and by applying high-frequency RF stimulation to the skin tissue, effects such as improved skin elasticity and skin regeneration can be achieved.

[0053] On the other hand, when the treatment tip 20 is connected to the handpiece body 10, a pair of cooling terminals 145 extending toward the treatment tip 20 from the tip of the handpiece body 10 are inserted into the terminal portion 23 of the treatment tip 20, and heat transfer is possible by making close contact with the cooling plate portion 25 that constitutes the treatment tip 20 within the terminal portion 23. This makes it possible to effectively transfer the cooling energy generated in the cooling portion 14 of the handpiece body 10 to the cooling plate portion 25. Of the cooling plate section 25, the portion (skin cooling plate) positioned at the tip of the treatment tip 20 and exposed to the outside directly contacts the skin being treated during high-frequency treatment, cooling the treatment area. This prevents burns caused by high-frequency heat during the treatment process, and the skin tissue in the treatment area becomes more resilient, reducing pain during treatment. It also has a soothing effect on the skin in the treatment area.

[0054] Thus, the scalp care handpiece according to this embodiment can provide a function that effectively cools the skin of the treatment area during high-frequency immersion treatment. Furthermore, since the treatment tip is equipped with a terminal section, and the terminal on the handpiece body side and the terminal on the treatment tip side are connected in a manner that allows heat transfer within the terminal section, energy loss can be prevented or minimized during the process in which cooling energy is transmitted to the treatment tip. Furthermore, unlike conventional configurations in which the treatment tip has a terminal (heat / cold transfer plate) that extends to a certain length to allow heat transfer to the handypiece body, the present invention integrates the terminal part with the treatment tip, resulting in a compact design that eliminates the externally protruding terminal portion from the treatment tip. This has the advantage of facilitating the storage, distribution, management, and assembly of the treatment tip, which is a consumable item.

[0055] The above explanation is merely illustrative of the technical concept of the present invention, and any person with ordinary skill in the art to which the present invention belongs should be able to make various modifications and variations within the bounds of the essential characteristics of the present invention. Therefore, the embodiments disclosed herein are for illustrative purposes only, and not to limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical concepts within an equivalent scope should be interpreted as being included within the scope of the rights of the present invention. [Explanation of Symbols]

[0056] 1 Handpiece 10 Handpiece Body 11 High-frequency supply terminal 12 Body Cases 14 Cooling section 16 Drive unit 17 Drive shaft 18 Release button section 19. Device operation buttons 20 treatment tips 22 Cap section 23 Terminal Section 24 Needle section 25 Cooling plate section 26 holders 27 Lifting Guide 28 Snap Joint 140 Heat exchange block 141 Through-hole 142 Peltier element 144 Cooling plate 145 Cooling terminals 180 Release Button 182 Elastic connector 184 Fasteners 186 Elastic support 187 Support stand 188 Spring 220 Tip surface 224 Needle entry / exit holes 225 Mounting Guide 230 Lower receptor 231 steps 232 Inclined guiding surface 234 Top lid 235 Protrusion 240 needles 244 circuit boards 250 Skin cooling plate 252 Cold heat transfer plate 252a Exposed area 252b Terminal area 254 Needle through-hole 255 holes 274 Intermediate board P connection pin S Spring

Claims

1. In the treatment tip of a handpiece for scalp care, A cap portion having a tip surface formed with multiple needle entry and exit holes, A cooling plate portion attached to the cap portion, and A treatment tip for a scalp care handpiece, characterized by including a pair of terminal portions located on both sides of the cap portion and housing both ends of the cooling plate portion.

2. A portion of the cooling plate is positioned on the tip surface, and its entire surface is exposed to the outside. The treatment tip for a scalp care handpiece according to claim 1, characterized in that both ends of the cooling plate portion are inserted into and fixed inside the terminal portion.

3. The cooling plate portion is A flat-type skin cooling plate is disposed on the aforementioned tip surface and has a plurality of needle through-holes formed therein corresponding to the needle entry and exit holes, and It includes a pair of heat and cold transfer plates that extend from both sides of the skin cooling plate, The aforementioned heat transfer plate is A terminal region that is inserted into and fixed inside the terminal portion, The treatment tip for a scalp care handpiece according to claim 1, characterized in that it includes an exposed area located between the terminal area and the skin cooling plate and exposed to the outside.

4. The aforementioned cap portion includes: The treatment tip for a scalp care handpiece according to claim 1, characterized in that a mounting guide is formed to protrude from both sides of the tip surface and the terminal portion.

5. The treatment tip for a scalp care handpiece according to claim 1, characterized in that a pair of snap joints are formed on the open end side of the cap portion located on the opposite side of the tip surface, facing each other and in a position that does not overlap with a pair of terminal portions.

6. In a handpiece for scalp care, A handpiece body equipped with a cooling unit, and The handpiece body includes a treatment tip that is detachably attached to the tip in a cartridge manner, The treatment tip is the treatment tip described in any one of claims 1 to 5 above. The cooling unit includes a cooling plate, The cooling plate is characterized by having a cooling terminal that is inserted into the terminal portion of the treatment tip and comes into contact with the cooling plate portion, forming an integral part of the scalp care handpiece.

7. The cooling unit is A heat exchange block configured such that cooling water flows in and the incoming cooling water is discharged to the outside after passing through the interior. A pair of Peltier elements are arranged in close contact with the first surface and the second surface facing the first surface of the heat exchange block. The scalp care handpiece according to claim 6, further comprising a pair of cooling plates arranged in close contact with the heat-absorbing surface of each Peltier element.

8. The heating surface of each Peltier element is in close contact with the first and second surfaces of the heat exchange block, respectively. The scalp care handpiece according to claim 7, characterized in that the cooling plate is directly coupled to the heat exchange block with the Peltier element in between.

9. The cooling unit further includes a heat exchange block in which the cooling plate is in heat exchangeable contact, The aforementioned heat exchange block has a through-hole formed in the center. A drive unit for raising and lowering the needle portion of the treatment tip is located behind the cooling unit. The scalp care handpiece according to claim 6, characterized in that the drive shaft connecting the drive unit and the needle unit is located in the shaft through hole.

10. The scalp care handpiece according to claim 6, characterized in that the handpiece body is provided with a pair of release buttons corresponding to a pair of snap joints formed on the treatment tip.

11. The aforementioned release button portion is A release button is positioned such that a portion of it is exposed to the outside through a buttonhole formed in the body case of the handpiece body. An elastic connector formed on one side of the release button, the end of which is fixed to a designated position inside the body case, A fastener formed on the opposite side of the elastic connector and on the other side of the release button, which connects with the snap joint when the treatment tip is attached, and The scalp care handpiece according to claim 10, characterized in that it includes an elastic support that is disposed inside the body case and elastically supports a portion of the release button so as to protrude to the outside of the body case through the button hole.

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