Radio frequency hand tool and treatment equipment

Abstract

The utility model discloses a radio frequency hand tool and treatment equipment, and relates to the technical field of medical equipment, the radio frequency hand tool comprises a handle and a treatment head, a circuit board assembly and a treatment head coupling assembly are arranged in the handle, the circuit board assembly is electrically connected with the treatment head, and the treatment head coupling assembly is in coupling connection with the treatment head; the circuit board assembly comprises a first hard circuit board, a second hard circuit board, a third hard circuit board, a first flexible circuit board and a second flexible circuit board, and the two opposite sides of the first flexible circuit board are connected with the first hard circuit board and the second hard circuit board respectively. Two opposite sides of the second flexible circuit board are respectively connected with the second hard circuit board and the third hard circuit board; the first hard circuit board, the second hard circuit board, the third hard circuit board, the first flexible circuit board and the second flexible circuit board are connected and enclosed to form an accommodating space; the treatment head coupling assembly is accommodated in the accommodating space; the utility model aims to provide the radio frequency hand tool which is multifunctional and compact in structure.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a radio frequency handpiece and a treatment device. Background Technology

[0002] Radiofrequency handpieces typically consist of a treatment head and a handle. The handle contains a circuit board that generates radiofrequency signals, which are then transmitted to the skin through the treatment head to treat skin problems such as acne, scars, wrinkles, and pigmentation.

[0003] In related technologies, to improve the grip of radio frequency (RF) handpieces, their size is minimized. However, this reduction in size limits the space available for circuit boards inside the handle, resulting in limited layout area. On the other hand, some handpieces require significant internal space, especially since some RF handpieces need to incorporate power components, cooling components, or other treatment head coupling components to drive the treatment head, cool it, or establish other coupling connections to ensure its proper functioning. This makes it even more difficult to install the power components within the handpiece. Utility Model Content

[0004] The main objective of this invention is to provide a radiofrequency handpiece and treatment device, which aims to offer a multifunctional and compact radiofrequency handpiece.

[0005] To achieve the above objectives, the radiofrequency handpiece proposed in this utility model includes: a handle and a treatment head;

[0006] The handle contains a circuit board assembly and a treatment head coupling assembly. The circuit board assembly is electrically connected to the treatment head, and the treatment head coupling assembly is used to couple with the treatment head.

[0007] The circuit board assembly includes a first rigid circuit board, a second rigid circuit board, a third rigid circuit board, a first flexible circuit board, and a second flexible circuit board. The opposite sides of the first flexible circuit board are respectively connected to the first rigid circuit board and the second rigid circuit board. The opposite sides of the second flexible circuit board are respectively connected to the second rigid circuit board and the third rigid circuit board. The first rigid circuit board, the second rigid circuit board, the third rigid circuit board, the first flexible circuit board, and the second flexible circuit board are connected and enclosed to form a receiving space.

[0008] The treatment head coupling assembly is housed within the receiving space.

[0009] In one embodiment, the treatment head coupling assembly includes a motor assembly for driving the treatment head to move.

[0010] In one embodiment, the first rigid circuit board and the second rigid circuit board are arranged parallel to each other, and the second rigid circuit board and the third rigid circuit board are arranged perpendicular to each other.

[0011] In one embodiment, the handle includes a front shell, the first rigid circuit board and the second rigid circuit board are respectively connected to the side walls of the motor assembly, and the third rigid circuit board is connected to the front shell.

[0012] In one embodiment, the treatment head includes a needle plate and a radio frequency (RF) spring needle. The RF spring needle is disposed on the needle plate. The needle plate is electrically connected to the third rigid circuit board and the RF spring needle, and is movably located between the front shell and the third rigid circuit board. The drive end of the motor assembly is connected to the needle plate to drive the needle plate to move.

[0013] In one embodiment, the third rigid circuit board has a radio frequency output section and a signal output section. The signal output section is electrically connected to the first rigid circuit board through a signal output line, and the radio frequency output section is electrically connected to the second rigid circuit board through the second flexible circuit board. The pin plate and the radio frequency output section are electrically connected.

[0014] In one embodiment, the second flexible circuit board has two connecting segments and an extension segment, with both ends of the extension segment connected to the two connecting segments respectively. One of the connecting segments is connected to the second rigid circuit board, and the other connecting segment is connected to the third rigid circuit board.

[0015] In one embodiment, an indicator light is provided on the side of the first flexible circuit board facing away from the treatment head coupling assembly.

[0016] In one embodiment, the first flexible circuit board has a positioning hole, and a positioning post is provided on one side wall of the handle, the positioning post being engaged in the positioning hole.

[0017] In one embodiment, the radio frequency handpiece includes a wire assembly, one end of which is electrically connected to the circuit board assembly and the treatment head coupling assembly, and the other end of which passes through a side wall of the handle and partially exposes the handle.

[0018] This utility model also proposes a treatment device, including a host and the radio frequency handpiece described in any of the above embodiments, wherein the host is electrically connected to the circuit board assembly and the treatment head coupling assembly.

[0019] In this utility model, multiple circuit boards are connected and enclosed to form a receiving space, providing an installation position for the treatment head coupling assembly. This helps to centrally manage and protect key components and saves space for the radio frequency handpiece. The compact design makes the handpiece smaller, easier to operate, and improves the user's grip and comfort. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of a circuit board assembly according to an embodiment of the present invention is provided;

[0022] Figure 2 A schematic diagram of another embodiment of the circuit board assembly provided by this utility model;

[0023] Figure 3 A schematic diagram of the structure of an embodiment of the radio frequency handpiece provided by this utility model;

[0024] Figure 4 A schematic diagram of another embodiment of the radio frequency handpiece provided by this utility model;

[0025] Figure 5 A schematic diagram of an embodiment of the present invention showing the cooperation between a third rigid circuit board, a pin plate, and a front shell;

[0026] Figure 6 A schematic diagram of a needle plate embodiment provided by this utility model.

[0027] Explanation of icon numbers:

[0028] 100. RF handpiece; 1. Handle; 2. Circuit board assembly; 21. First rigid circuit board; 22. Second rigid circuit board; 23. Third rigid circuit board; 231. RF output section; 232. Signal output section; 24. First flexible circuit board; 241. Indicator light; 242. Positioning hole; 25. Second flexible circuit board; 251. Connecting section; 252. Extension section; 26. Reception space; 3. Motor assembly; 4. Front shell; 5. Pin plate; 51. RF spring pin; 6. Wire assembly.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] This utility model proposes a radio frequency handpiece 100.

[0034] Please see Figures 1 to 6In one embodiment of this utility model, the radio frequency handpiece 100 includes a handle 1 and a treatment head. The handle 1 houses a circuit board assembly 2 and a treatment head coupling assembly. The circuit board assembly 2 is electrically connected to the treatment head, and the treatment head coupling assembly is used for coupling with the treatment head. The circuit board assembly 2 includes a first rigid circuit board 21, a second rigid circuit board 22, a third rigid circuit board 23, a first flexible circuit board 24, and a second flexible circuit board 25. The opposite sides of the first flexible circuit board 24 are connected to the first rigid circuit board 21 and the second rigid circuit board 22, respectively. The opposite sides of the second flexible circuit board 25 are connected to the second rigid circuit board 22 and the third rigid circuit board 23, respectively. The first rigid circuit board 21, the second rigid circuit board 22, the third rigid circuit board 23, the first flexible circuit board 24, and the second flexible circuit board 25 are connected and enclosed to form a receiving space 26. The treatment head coupling assembly is housed within the receiving space 26.

[0035] In this utility model, a specific arrangement and connection method of rigid and flexible circuit boards achieves a compact layout of the circuit board assembly 2 within the handle 1, thereby improving space utilization efficiency and helping to optimize circuit performance and reduce mutual interference. Multiple circuit boards are connected and enclosed to form a receiving space 26, providing an installation location for the treatment head coupling assembly, facilitating centralized management and protection of key components, and saving space in the radio frequency handpiece 100. By increasing the number and type of circuit boards, the radio frequency handpiece 100 can provide more treatment modes and better treatment effects to meet user needs. The optimized circuit board layout reduces energy loss and improves energy transmission efficiency, thereby improving treatment efficiency. The compact design makes the handpiece smaller, easier to operate, and enhances the user's grip and comfort. During operation of the radio frequency handpiece 100, the treatment head coupling assembly is coupled to the treatment head, allowing coupling through methods such as electrical coupling, motion coupling, and cooling coupling. In this embodiment, coupling connection refers to the provision of corresponding physical changes by the treatment head coupling component based on various mechanical and physical changes such as movement, heating, cooling, and discharge that the treatment head needs to undergo during treatment. For example, if the radiofrequency needle 51 or hollow needle on the treatment head needs to pierce the user's skin during treatment, the corresponding treatment head coupling component includes a motor component 3, which provides power to drive the radiofrequency needle 51 or hollow needle to move so that it pierces the user's skin. Another example is that if the radiofrequency needle 51 on the treatment head needs to emit electrical energy to the skin for treatment, the corresponding treatment head coupling component includes a power discharge element. Yet another example is that if the electrodes on the treatment head need to be cooled to cool the skin, the corresponding treatment head coupling component includes a cooling element or a cooling-conducting element for transferring cold air. Alternatively, if the treatment head has a hollow needle that needs to inject therapeutic medication during treatment, the treatment head coupling component includes a liquid pump or an air pump to introduce the injected medication into the skin through the hollow needle.

[0036] In one embodiment, the radiofrequency handpiece 100 may include two types of needles: radiofrequency needles 51 for electrical stimulation and hollow needles for injecting hydrating liquid. Through the radiofrequency needles 51, the handpiece can emit radiofrequency energy into the skin tissue, utilizing the thermal and electromagnetic effects of the radiofrequency energy to stimulate collagen regeneration and remodeling in the skin tissue, thereby achieving the effect of tightening the skin and improving skin laxity. Through the hollow needles, the handpiece can directly inject hydrating liquid (such as hyaluronic acid, nutrient solution, etc.) into the deep layers of the skin, providing deep hydration and nutrition to the skin, improving skin texture and radiance, and making the skin moist and bright. The handpiece can use the radiofrequency function alone, or it can combine the radiofrequency function with the hydrating function to achieve a combined radiofrequency and hydrating treatment mode. The multi-functional combination can more comprehensively meet the user's needs for skin treatment and improve the treatment effect.

[0037] Specifically, please refer to Figures 1 to 4 In one embodiment of this utility model, the first rigid circuit board 21 and the second rigid circuit board 22 are arranged in parallel, and the second rigid circuit board 22 and the third rigid circuit board 23 are arranged perpendicularly. The parallel arrangement of the first rigid circuit board 21 and the second rigid circuit board 22, and the perpendicular arrangement of the second rigid circuit board 22 and the third rigid circuit board 23, helps to maximize the use of limited space and achieve a compact arrangement of the circuit board assembly 2. The vertical and parallel arrangement of the rigid circuit boards enhances the structural stability of the entire circuit board assembly 2 and reduces deformation or damage to the circuit board caused by external forces. The circuit board layout in different directions helps to isolate circuits with different functions, reduce electromagnetic interference, and improve the circuit's anti-interference capability. The vertical and parallel circuit board layout helps to disperse and manage heat, avoiding localized overheating. The vertical and parallel circuit board layout also optimizes the signal transmission path, reduces signal transmission loss, and improves signal transmission efficiency. In one embodiment, the first rigid circuit board 21, the second rigid circuit board 22, and the third rigid circuit board 23 are respectively the main control board, the radio frequency isolation board, and the spring pin connecting board. The radio frequency isolation board is separated from the main control board by the first flexible circuit board 24, which helps to increase the pressure resistance and anti-static requirements. The spring pin connecting board is connected to one side wall of the handle 1 and is used to connect to the treatment head of the radio frequency handpiece 100.

[0038] Further, please refer to Figure 3 In one embodiment of this utility model, the handle 1 includes a front shell 4. The first rigid circuit board 21 and the second rigid circuit board 22 are respectively connected to the two side walls of the motor assembly 3, and the third rigid circuit board 23 is connected to the front shell 4. The first rigid circuit board 21 and the second rigid circuit board 22 are respectively connected to the two side walls of the motor assembly 3, and the third rigid circuit board 23 is connected to the front shell 4. This layout can form a stable frame structure, enhancing the mechanical strength of the entire handle 1. The direct connection of the circuit board to the motor assembly 3 and the front shell 4 helps to reduce additional support structures, making the design more compact and saving space. Directly connecting the circuit board to the motor assembly 3 and the front shell 4 simplifies the assembly process and reduces the parts and steps required for assembly. The connection between the rigid circuit board and the motor assembly 3 and the front shell 4 can be achieved through snaps and slots or through screws. This utility model does not limit this method.

[0039] To achieve the power output of the RF handpiece 100, please refer to [link / reference]. Figures 3 to 5In one embodiment of this utility model, the treatment head includes a needle plate 5 and radio frequency (RF) spring needles 51. The RF spring needles 51 are disposed on the needle plate 5. The needle plate 5 is electrically connected to the third rigid circuit board 23 and the RF spring needles 51, and is movably located between the front shell 4 and the third rigid circuit board 23. The drive end of the motor assembly 3 is connected to the needle plate 5 to drive the needle plate 5 to move. The RF spring needles 51 on the needle plate 5 pass through the front shell 4. The needle plate 5 is electrically connected to the third rigid circuit board 23 and the RF spring needles 51, realizing and ensuring the electrical connection between the third rigid circuit board 23 and the treatment head, allowing the transmission of radio frequency energy and other control signals. The drive end of the motor assembly 3 is connected to the needle plate 5. The drive of the motor assembly 3 drives the needle plate 5 to move within the movable space between the front shell 4 and the third rigid circuit board 23, so that the treatment head can be flexibly moved and adjusted according to different treatment needs and operating techniques, such as changing the contact angle and force between the RF spring needles 51 and the skin. To better adapt to various treatment scenarios and improve the comfort and effectiveness of treatment; when the radiofrequency handpiece 100 is in operation, the motor assembly 3 drives the needle plate 5 to move, and the radiofrequency spring needle 51 on the needle plate 5 passes through the front shell 4 and pierces the user's skin. The depth of the radiofrequency spring needle 51 piercing the skin is precisely controlled to ensure that the treatment energy can accurately act on the target tissue layer and avoid the adverse effects caused by piercing too deeply or too shallowly. After the radiofrequency spring needle 51 pierces the skin, it can more effectively transmit radiofrequency energy to the deep tissue of the skin, ensuring that the treatment energy can reach the target treatment area, thereby exerting the treatment effects of tightening the skin and improving laxity.

[0040] To promote uniform distribution of radio frequency energy, please refer to Figures 3 to 5In one embodiment of the present invention, the third rigid circuit board 23 has a radio frequency output section 231 and a signal output section 232. The signal output section 232 is electrically connected to the first rigid circuit board 21 through a signal output line, and the radio frequency output section 231 is electrically connected to the second rigid circuit board 22 through the second flexible circuit board 25. The needle plate 5 and the radio frequency output section 231 are electrically connected. During operation of the radio frequency handpiece 100, the motor assembly 3 drives the needle plate 5 to move. The radio frequency spring needles 51 on the needle plate 5 pass through the front shell 4 and pierce the user's skin. The needle plate 5 is electrically connected to the radio frequency output section 231, which can evenly distribute radio frequency energy onto the needle plate 5. The needle plate 5 also has a circuit board that can transmit electrical signals. Because the needle plate 5 is equipped with radio frequency spring needles 51, radio frequency energy can be evenly transmitted to the treatment area through the radio frequency spring needles 51 to achieve the corresponding therapeutic effect. The radio frequency output section 231 of the third rigid circuit board 23 is designed to output radio frequency energy. Through a specific layout and connection method, it helps to promote the even distribution of radio frequency energy in the treatment area, thereby improving the therapeutic effect. The signal output section 232 is designed separately from the radio frequency output section 231 and is connected to other circuit boards through different paths. This separation can reduce signal interference and ensure radio frequency signal transmission. The signal purity and accuracy of signal control are ensured; the signal output unit 232 is electrically connected to the first rigid circuit board 21 via a signal output line. This direct hard-wire connection provides a stable signal transmission path and reduces signal attenuation and interference; the RF output unit 231 is electrically connected to the second rigid circuit board 22 via the second flexible circuit board 25. Utilizing the flexibility of the flexible circuit board, connections between circuit boards can be achieved in space-constrained environments, while reducing interference that may be caused by hard-wire connections. This allows the third rigid circuit board to move, simultaneously driving the pin plate and RF pins to move synchronously while maintaining electrical connection. The combined use of rigid and flexible circuit boards improves design flexibility, allowing for complex circuit layouts in compact spaces, while facilitating circuit board assembly and maintenance. Through reasonable circuit board layout and connection methods, circuit performance can be optimized, energy loss reduced, and energy transmission efficiency improved.

[0041] To improve the stability and reliability of the device, and to enhance the connection stability between the second rigid circuit board 22 and the third rigid circuit board 23, please refer to [link / reference needed]. Figure 1 and Figure 2In one embodiment of the present invention, the second flexible circuit board 25 has two connecting segments 251 and one extension segment 252. The two ends of the extension segment 252 are respectively connected to the two connecting segments 251. One of the connecting segments 251 is connected to the second rigid circuit board 22, and the other connecting segment 251 is connected to the third rigid circuit board 23. When the radio frequency handpiece 100 is in operation, the motor assembly 3 drives the treatment head to move away from the handle 1 so that the radio frequency needle 51 on the needle plate 5 passes through the front shell 4 and pierces the user's skin. At the same time, the motor assembly 3 drives the treatment head to move closer to the handle 1 a certain distance. During this process, the first flexible circuit board 24 will be stretched due to the driving action of the motor assembly 3. The extension section 252 of the first flexible circuit board 24 will be stretched. At the same time, the motor assembly 3 drives the treatment head closer to the handle 1 to drive the needle plate 5 to move so that the extension section 252 retracts. The setting of the extension section 252 can prevent the user from pulling the first flexible circuit board 24 during use and causing the first flexible circuit board 24 to be damaged. The extension section 252 on the second flexible circuit board 25 increases the stability and reliability of the device during use.

[0042] To provide users with intuitive information about the device's usage status, please refer to [link / reference]. Figure 1 In one embodiment of this utility model, an indicator light 241 is provided on the side of the first flexible circuit board 24 facing away from the treatment head coupling assembly. The integration of the indicator light 241 provides users with intuitive feedback, indicating the device's working status, battery level, treatment mode, or other important information; the indicator light 241 simplifies the operation process, allowing users to quickly understand the device status by observing changes in the indicator light 241 without complex operations or queries; the indicator light 241 can be designed with different colors and flashing patterns, not only providing functional information but also enhancing the product's aesthetics; the indicator light 241 can serve as a status indicator, such as indicating whether the device is turned on, charging, or undergoing treatment; when the device malfunctions, the indicator light 241 can alert the user through specific flashing patterns or color changes, helping to quickly identify the problem; the use of the flexible circuit board allows the indicator light 241 to be flexibly arranged within a limited space, adapting to handpiece designs of various shapes and sizes.

[0043] For easier installation of the first flexible circuit board 24, please refer to [link / reference]. Figure 1 and Figure 2In one embodiment of this utility model, the first flexible circuit board 24 has a positioning hole 242, and a positioning post is provided on one side wall of the handle 1. The positioning post is engaged in the positioning hole 242. The positioning hole 242 ensures the precise alignment of the first flexible circuit board 24 when it is installed on the handle 1, which is crucial for ensuring the accuracy and reliability of the circuit connection. Through the positioning hole 242, assembly workers can quickly align the first flexible circuit board 24 with the corresponding positioning post or protrusion on the handle 1, simplifying the assembly process and improving production efficiency. The positioning hole 242 helps reduce human error during the assembly process, ensuring the consistency and reliability of each component. Quick and accurate positioning can significantly reduce assembly time, especially in large-scale production, which is crucial for reducing costs and increasing output. The positioning hole 242 can be used in conjunction with the positioning post or other structures on the handle 1 to enhance the structural stability of the entire assembly.

[0044] Please see Figure 4 In one embodiment of this utility model, the radio frequency handpiece 100 includes a wire assembly 6. One end of the wire assembly 6 is electrically coupled to the circuit board assembly 2 and the treatment head, and the other end of the wire assembly 6 passes through one side wall of the handle 1 and partially exposes the handle 1. The wire assembly 6 integrates power supply and control functions, and can transmit power and control signals simultaneously, simplifying the internal connections of the handpiece. By integrating power and control signals into a single wire assembly 6, the number of required wires can be reduced, simplifying the internal wiring of the handpiece and reducing complexity. The design of one end of the wire assembly 6 being electrically coupled to the circuit board assembly 2 and the treatment head, and the other end being partially exposed in the handle 1, facilitates maintenance personnel and access to the wire assembly 6 without disassembling the entire handpiece. The design of the wire assembly 6 makes the operation of the handpiece simpler, and users can more easily connect and disconnect the power supply, improving the user experience.

[0045] This utility model also proposes a treatment device, which includes a main unit and a radio frequency handpiece 100. The specific structure of the radio frequency handpiece 100 is as described in the above embodiments. Since this treatment device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The main unit is electrically connected to the circuit board assembly 2 and the motor assembly 3. The treatment device, including the main unit and the radio frequency handpiece 100, forms an integrated treatment system that can provide more comprehensive treatment solutions. The electrical connection between the main unit and the circuit board assembly 2 and motor assembly 3 of the radio frequency handpiece 100 ensures stable signal and power transmission, enabling the handpiece to work normally. Through the connection with the main unit, the user can more conveniently control the operation of the radio frequency handpiece 100, including starting, stopping, and adjusting treatment parameters. The main unit can provide additional functions, such as a display screen, control panel, data recording and analysis, etc., expanding the application range of the radio frequency handpiece 100. The main unit can contain advanced control algorithms and treatment programs, which, when used in conjunction with the radio frequency handpiece 100, improve the treatment effect.

[0046] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A radio frequency handpiece, comprising: The utility model relates to a radio frequency hand tool, including: A handle and a treatment head; A circuit board assembly and a treatment head coupling assembly are arranged in the handle, the circuit board assembly is electrically connected with the treatment head, and the treatment head coupling assembly is used for coupling connection with the treatment head; The circuit board assembly includes a first hard circuit board, a second hard circuit board, a third hard circuit board, a first flexible circuit board and a second flexible circuit board, opposite sides of the first flexible circuit board are connected with the first hard circuit board and the second hard circuit board respectively, and opposite sides of the second flexible circuit board are connected with the second hard circuit board and the third hard circuit board respectively;The first hard circuit board, the second hard circuit board, the third hard circuit board, the first flexible circuit board and the second flexible circuit board are connected and enclosed to form a containing space; The treatment head coupling assembly is contained in the containing space.

2. The radio frequency handpiece of claim 1, wherein, The treatment head coupling assembly includes a motor assembly, and the motor assembly is used to drive the treatment head to move.

3. The radio frequency handpiece of claim 2, wherein, The first hard circuit board and the second hard circuit board are arranged in parallel, and the second hard circuit board and the third hard circuit board are arranged vertically.

4. The radio frequency handpiece of claim 3, wherein, The handle includes a front shell, the first hard circuit board and the second hard circuit board are connected with two side walls of the motor assembly respectively, and the third hard circuit board is connected with the front shell.

5. The radio frequency handpiece of claim 4, wherein, The treatment head includes a needle plate and a radio frequency spring needle, the radio frequency spring needle is arranged on the needle plate, the needle plate is electrically connected with the third hard circuit board and the radio frequency spring needle respectively and movably located between the front shell and the third hard circuit board, and a driving end of the motor assembly is connected with the needle plate to drive the needle plate to move.

6. The radio frequency handpiece of claim 5, wherein, The third hard circuit board has a radio frequency output part and a signal output part, the signal output part is electrically conducted with the first hard circuit board through a signal output line, the radio frequency output part is electrically conducted with the second hard circuit board through the second flexible circuit board, and the needle plate and the radio frequency output part are electrically connected.

7. The radio frequency handpiece of claim 6, wherein the at least one of the first and second conductive elements is a conductive wire. The second flexible circuit board has two connecting sections and an extension section, two ends of the extension section are connected with the two connecting sections respectively, one of the connecting sections is connected with the second hard circuit board, and the other connecting section is connected with the third hard circuit board.

8. The radio frequency handpiece of any one of claims 1 to 5, wherein, A display lamp is arranged on one side of the first flexible circuit board away from the treatment head coupling assembly.

9. The radio frequency handpiece of any one of claims 1 to 5, wherein, The first flexible circuit board is provided with a positioning hole, and one side wall of the handle is provided with a positioning column which is clamped in the positioning hole.

10. The radio frequency handpiece of any one of claims 1 to 5, wherein, The radio frequency hand tool includes a wire assembly, one end of the wire assembly is electrically connected with the circuit board assembly and the treatment head coupling assembly, the other end of the wire assembly is arranged in one side wall of the handle and partially exposed from the handle.

11. A treatment device, characterized by The utility model relates to a radio frequency hand tool, including a host computer and the radio frequency hand tool of any one of claims 1-10, and the host computer is electrically connected with the circuit board assembly and the treatment head coupling assembly.

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