Radio frequency treatment handle

Abstract

The utility model relates to the field of medical instruments, in particular to a radio frequency treatment handle which comprises a handheld part, a connecting part and a power output head. One end of the handheld part is connected with the therapeutic instrument host; the other end is fixedly connected with the connecting part; the connecting part is matched and connected with the power output head; and the power output head is provided with a PCB (Printed Circuit Board) with a radio frequency electrode area. According to the radio frequency treatment handle, the treatment head unit composed of the treatment head accessory, the flexible PCB and the protective cover is connected and replaced through the mechanical buckling position, and different skin tissues can be treated by replacing different treatment head units; the design that the flexible PCB is combined with the honeycomb structure is adopted, and when radio frequency energy is output, the contact area of a square net-shaped surface can achieve a uniform coverage surface combined with a dot matrix on human skin tissue.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to a radiofrequency therapy handpiece. Background Technology

[0002] Radiofrequency (RF) aesthetic technology uses high-frequency electromagnetic waves (typically between 0.3MHz and 10MHz) to penetrate the skin and act on the subcutaneous tissue. The RF energy generates a thermal effect in the tissue, causing collagen fibers in the skin to contract while simultaneously stimulating collagen regeneration, thereby achieving the effects of tightening the skin, reducing wrinkles, and improving skin texture. A traditional RF handpiece typically includes an electrode head that directly contacts the skin to deliver RF energy to the subcutaneous tissue, a PCB board for controlling the output power and frequency of the RF energy, and a support and housing for supporting and securing the handpiece.

[0003] In traditional designs, the electrode head is often fixed by directly soldering it to the PCB board. Although this design is simple, it is not convenient for maintenance and replacement. When the electrode head wears out or malfunctions, the entire handle may need to be sent back to the manufacturer for repair or replacement, which increases maintenance costs and time.

[0004] Although, considering the convenience of disassembly, the treatment head was not specifically developed to replace electrodes for different skin types or body parts. For example, utility model patent CN221266919U discloses a radio frequency handpiece, including a treatment unit; the treatment unit further includes an electrode head, a support, and a PCB board. The electrode head is electrically connected to the PCB board using conductive fasteners, and a support exists between the electrode head and the PCB board. The conductive fasteners ensure stable radio frequency supply to the target tissue.

[0005] However, the patent does not provide a corresponding structural design to accommodate the different suitability of different skin types or body parts; furthermore, the treatment head of the patent cannot ensure that the radiofrequency energy is output uniformly during the treatment process. Utility Model Content

[0006] To overcome the shortcomings of the prior art mentioned above, such as the lack of applicability to different skin types or body parts and the inability to ensure uniform output of radiofrequency energy, this utility model provides a radiofrequency treatment handpiece.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] A radiofrequency therapy handpiece includes a grip, a connecting part, and a power output head; one end of the grip is connected to the main unit of the therapy instrument; the other end is fixedly connected to the connecting part; the connecting part is connected to the power output head; the power output head is provided with a PCB board containing radiofrequency electrode areas.

[0009] Furthermore, the grip includes two symmetrically arranged main handle housings and handle buttons; the handle buttons are located in the middle of the main handle housings.

[0010] The main housing of the handle is L-shaped; one end of the main housing of the handle is provided with a semi-circular tube connected to the connecting part, and the other end is provided with a screw-type connector for connecting to the power output head.

[0011] Furthermore, the power output head also includes a treatment head accessory and a protective cover; the PCB board is a flexible PCB board, and the treatment head accessory, the flexible PCB board, and the protective cover are connected in sequence; the power output head is mechanically fastened to the connecting part.

[0012] Furthermore, the treatment head accessory includes a top cuboid block and a base; an inclined bracket is provided between the cuboid block and the base, and the bottom surface of the cuboid block is fixedly connected to the base through two of the inclined brackets;

[0013] The base has two strip-shaped through holes; the two ends of the flexible PCB board pass through the strip-shaped through holes of the treatment head accessory and are then fixed to the treatment head accessory, and the protective cover is snapped into place with the treatment head accessory.

[0014] Furthermore, the RF electrode area of ​​the flexible PCB board is provided with a mesh surface; the mesh surface is provided with a plurality of through holes, and the aperture d of the through holes is 0.1mm-1.0mm.

[0015] Furthermore, the thickness of the flexible PCB board is 0.05mm-2mm.

[0016] The flexible PCB board is made of single-sided brass material, with circuit printing on one side and an insulating polyester film layer on the other side; the radio frequency electrode area on the circuit printing side has a honeycomb-like mesh surface, and the surface of the mesh surface is encapsulated with an epoxy resin potting compound that can directly contact the skin tissue of the treatment target.

[0017] Furthermore, the top of the main housing of the handle is provided with an elliptical head, which is connected to the semi-circular tube. The elliptical head has an elliptical end face to facilitate the fixation of the handle and enhance the grip feel.

[0018] Furthermore, the main housing of the handle is provided with a control board for controlling the operation of the handle, and also with several connecting support ribs for locking and enhancing the physical strength of the handle; the left and right main housings of the handle are connected by the connecting support ribs, and the two semi-circular tubes form a circular tube interface after connection;

[0019] The handle buttons are equipped with contact buttons, and the circuit between the contact buttons and the control board inside the main housing of the handle is controlled by external force.

[0020] Furthermore, the grip portion is also provided with a fixed tail ring that is fixedly connected to the round tube interface, and also includes a terminal fixing member and a bottom terminal fixing member; one end of the terminal fixing member is connected to the bottom terminal fixing member, and the other end is connected to the screw-type connector.

[0021] Furthermore, the terminal fixing component is provided with two through holes, and a pin is provided on the through hole. After the wire passes through the round tube interface and through the inside of the main housing of the handle, it is electrically connected to one end of the pin on the through hole; the other end of the pin is electrically connected to the flexible PCB board.

[0022] Furthermore, the treatment head accessory, the flexible PCB board, and the protective cover are all designed with three sizes: 7*7mm, 15*15mm, and 30*30mm. The power output head assembly, composed of the treatment head accessory, the flexible PCB board, and the protective cover, is used for treatment. The power output head is connected to the connecting part by a press-type mechanical snap-fit.

[0023] The 7*7mm power output head 3 can be applied to small areas of skin tissue on the face, such as around the eyes and lips; the 15*15mm power output head 3 can be applied to medium-sized areas of skin tissue, such as the arms and backs of the hands; and the 30*30mm power output head 3 can be applied to large areas of skin tissue, such as the thighs, abdomen, and buttocks. Staff can change the size of the power output head 3 according to the actual situation, which improves the convenience of replacement and facilitates flexible customization of treatment plans for different needs.

[0024] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0025] The following beneficial effects can be achieved by using the radiofrequency therapy handpiece of this invention.

[0026] ① The power output head is replaceable, offering convenience. The power output head, composed of the treatment head accessories, flexible PCB board, and protective cover connected in sequence, can be connected and replaced via mechanical fasteners. This allows operators to customize treatment plans according to the different needs of the patients, and different skin tissues can be treated by changing different treatment head units.

[0027] ② Uniformity of radio frequency energy output. The radio frequency electrode area of ​​the flexible PCB board has a mesh surface with several through holes, the diameter d of which is 0.1mm-1.0mm. The mesh surface structure designed in the radio frequency electrode area of ​​the flexible PCB board allows the contact area of ​​the mesh surface to form a more uniform and dotted coverage on human skin tissue. During radio frequency energy output, the mesh covers and penetrates the subcutaneous tissue to act on the target cells of the subcutaneous tissue, thus achieving greater uniformity of radio frequency energy output. Attached Figure Description

[0028] Figure 1 This is an exploded view of the radiofrequency therapy handpiece according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the radiofrequency therapy handpiece according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the terminal fixing component according to an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the treatment head accessory according to an embodiment of the present invention;

[0032] Figure 5 This is a top view of the treatment head accessory according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the flexible PCB board according to an embodiment of the present invention;

[0034] 1. Hand grip; 101. Handle main housing; 1011. Semi-circular tube; 1012. Screw-on connector; 1013. Oval head; 102. Handle buttons; 1021. Contact buttons; 103. Retaining ring;

[0035] 2. Connecting part; 201. Terminal fixing part; 2011. Through hole; 202. Bottom terminal fixing part;

[0036] 3. Power output head; 301. Treatment head accessories; 3011. Cube block; 3012. Base; 3013. Angled support; 302. Flexible PCB board; 3021. Square mesh surface; 303. Protective cover. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments without creative effort are within the scope of protection of this application.

[0038] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] Example 1

[0040] like Figure 1-6 As shown, this embodiment discloses a radiofrequency therapy handpiece, including a grip part 1, a connecting part 2, and a power output head 3; one end of the grip part 1 is connected to the main unit of the therapy instrument; the other end is fixedly connected to the connecting part 2; the connecting part 2 is connected to the power output head 3; the power output head 3 is provided with a PCB board containing radiofrequency electrode areas.

[0041] The grip 1 includes two symmetrically arranged main handle housings 101 and handle buttons 102; the handle buttons 102 are located in the middle of the main handle housings 101.

[0042] The main housing 101 of the handle is L-shaped. One end of the main housing 101 is provided with a semi-circular tube 1011 that connects to the connecting part 2, and the other end is provided with a screw-on connector 1012 for connecting to the power output head 3. The connection method of the semi-circular tube 1011 and the screw-on connector 1012 ensures a more secure connection between the handle and the main unit of the treatment instrument and the power output head 3, effectively preventing the connection from loosening or falling off during use and improving the stability of the grip.

[0043] The hand grip 1 adopts two symmetrically arranged L-shaped handle main shells 101, and the handle button 102 is located in the middle of the handle main shell 101. It conforms to the ergonomic design, so that the operator can better grip the handle when using it, making it easier for the operator to operate with one hand and improving the comfort of operation.

[0044] The power output head 3 also includes a treatment head accessory 301 and a protective cover 303; the PCB board is a flexible PCB board 302, and the treatment head accessory 301, flexible PCB board 302, and protective cover 303 are connected in sequence; the power output head 3 is mechanically fastened to the connecting part 2. The power output head 3 is available in different specifications and can be replaced according to user needs. The flexible PCB board 302 is in direct contact with the skin tissue, and radiofrequency energy is transmitted through the flexible PCB board 302. This design ensures that the radiofrequency energy can be effectively conducted to the target skin tissue, enhancing the effectiveness and precision of the treatment.

[0045] The top of the main housing 101 of the handle is also provided with an oval head 1013, which is connected to the semi-circular tube 1011. The oval head 1013 has an oval end face to facilitate the fixation of the handle and enhance the grip. The design of the oval head 1013 and the overall curvature of the handle make it easy for the operator to hold and operate; and the design of the oval end face makes it easy for the handle to be placed on the handle holder.

[0046] Example 2

[0047] like Figure 1-6 As shown, this embodiment discloses another radiofrequency treatment handpiece similar to that in embodiment 1, the difference being that it includes a grip part 1, a connecting part 2, and a power output head 3; one end of the grip part 1 is connected to the main unit of the treatment instrument; the other end is fixedly connected to the connecting part 2; the connecting part 2 is connected to the power output head 3; the power output head 3 is provided with a PCB board containing a radiofrequency electrode area.

[0048] The treatment head accessory 301 includes a top cuboid block 3011 and a base 3012. An inclined bracket 3013 is provided between the cuboid block 3011 and the base 3012. The bottom surface of the cuboid block 3011 is fixedly connected to the base 3012 via two inclined brackets 3013. The base 3012 has two strip-shaped through holes. Both ends of the flexible PCB board 302 pass through the strip-shaped through holes of the treatment head accessory 301 and are fixed to the treatment head accessory 301. A protective cover 303 is snapped into place with the treatment head accessory 301. The protective cover 303 effectively protects the internal flexible PCB board 302 and other components from external environmental influences or damage. Simultaneously, the snap-fit ​​connection makes the installation and removal of the protective cover 303 more convenient, facilitating equipment maintenance and cleaning.

[0049] The cube block 3011 is fixedly connected to the base 3012 by two inclined brackets 3013, forming a stable triangular structure. This increases the structural stability of the entire treatment power output head 3, ensuring that it will not easily deform or loosen during operation, thus improving the reliability and service life of the equipment. The base 3012 has two strip-shaped through holes, through which the two ends of the flexible PCB board 302 can pass and be fixed to the treatment head accessories. This facilitates the installation and fixation of the flexible PCB board 302, ensuring that it will not slide or shift during use, thereby guaranteeing the stable transmission of radio frequency energy. The design of the strip-shaped through holes not only facilitates the two ends of the flexible PCB board 302 to pass through and be fixed, but also improves the heat dissipation effect to a certain extent, helping to maintain the temperature stability of the treatment power output head 3 during treatment, preventing overheating, and ensuring the safety and effectiveness of the treatment process.

[0050] The flexible PCB board 302 has a mesh surface 3021 in the RF electrode area; the mesh surface 3021 has several small through holes with a diameter d of 0.1mm-1.0mm. The thickness of the flexible PCB board 302 is 0.05mm-2mm.

[0051] The flexible PCB board 302 is made of single-sided brass material, with circuit printing on one side and an insulating ink layer on the other. The radio frequency electrode area on the circuit printing side has a honeycomb-like mesh surface, and the surface of the mesh surface is encapsulated with an epoxy resin potting compound that can directly contact the skin tissue of the treatment target. The honeycomb mesh design of the radio frequency electrode area of ​​the flexible PCB board 302, unlike traditional radio frequency microneedles, can achieve a more uniform and dotted coverage on human skin tissue. When radio frequency energy is output, it covers and enters the subcutaneous tissue in a mesh form to act on the target cells of the subcutaneous tissue. The output of radio frequency energy induces collagen production in the dermis, and the temperature of the target cells is increased by heating energy, while maintaining epidermal protection. This innovative combination of treatments, a non-invasive treatment method, can improve the treatment effect in a shorter time.

[0052] The treatment head accessory 301, flexible PCB board 302, and protective cover 303 are all designed in three sizes: 7*7mm, 15*15mm, and 30*30mm. The power output head 3, composed of these three components, is used for treatment. The 7*7mm power output head 3 can be applied to small areas of skin tissue on the face, such as around the eyes and lips; the 15*15mm power output head 3 can be applied to medium-sized areas of skin tissue, such as the arms and backs of the hands; and the 30*30mm power output head 3 can be applied to large areas of skin tissue, such as the thighs, abdomen, and buttocks. Operators can easily change the size of the power output head 3 according to the actual situation, improving convenience and allowing for flexible customization of treatment plans to meet different needs.

[0053] Example 3

[0054] like Figure 1-6 As shown, this embodiment discloses another radiofrequency treatment handpiece similar to that in embodiment 1, the difference being that it includes a grip part 1, a connecting part 2, and a power output head 3; one end of the grip part 1 is connected to the main unit of the treatment instrument; the other end is fixedly connected to the connecting part 2; the connecting part 2 is connected to the power output head 3; the power output head 3 is provided with a PCB board containing a radiofrequency electrode area.

[0055] The main housing 101 of the handle is equipped with a control board for controlling the operation of the handle, and also has several connecting support ribs for locking and enhancing the physical strength of the handle; the left and right main housings 101 of the handle are connected by the connecting support ribs, and after the connection, the two semi-circular tubes 1011 form a circular tube interface; the left and right main housings 101 of the handle are tightly fitted by the connecting support ribs to form a stable overall structure, which improves the durability of the handle and prevents deformation or breakage during use.

[0056] The handle button 102 is equipped with a contact button 1021. Pressing the contact button 1021 controls the circuit connection between the contact button 1021 and the control motherboard inside the handle main housing 101. This design makes the operation more sensitive and precise, allowing the operator to easily control the radiofrequency treatment head to turn on and off via the button.

[0057] The grip part 1 is also provided with a fixed tail ring 103 that is fixedly connected to the round tube interface, and also includes a terminal fixing member 201 and a bottom terminal fixing member 202; one end of the terminal fixing member 201 is connected to the bottom terminal fixing member 202, and the other end is connected to the screw-type connector 1012.

[0058] The terminal fixing component 201 has two through holes 2011, and a pin is provided on the through hole 2011. After the wire passes through the round tube interface and enters the main housing 101 of the handle, it is electrically connected to one end of the pin on the through hole 2011. The other end of the pin is electrically connected to the flexible PCB board 302, which ensures the stable transmission of current and signal inside the handle, reduces the instability of electrical connection, and improves the overall reliability and safety of the equipment.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A radio frequency treatment handpiece characterized by, It includes hand holding part (1), connecting part (2) and power output head (3);The one end of hand holding part (1) is connected with therapeutic instrument main machine;The other end is fixedly connected with connecting part (2);Connecting part (2) is matched with power output head (3);Power output head (3) is equipped with PCB board containing radio frequency electrode area; The power output head (3) also includes treatment head accessory (301) and protective cover (303);The PCB board is flexible PCB board (302), and the treatment head accessory (301), the flexible PCB board (302) and the protective cover (303) are sequentially connected;The power output head (3) is mechanically buckled with the connecting part (2); The flexible PCB board (302) radio frequency electrode area is equipped with net face (3021); The net face (3021) is equipped with a plurality of through holes, and the aperture d of the through hole is 0.1mm-1.0mm.

2. The radio frequency treatment handpiece of claim 1, wherein, The hand holding part (1) includes 2 handle main housings (101) and handle keys (102) arranged symmetrically;The handle keys (102) are arranged in the middle of the handle main housings (101); The handle main housings (101) are L-shaped;One end of the handle main housings (101) is equipped with a semicircular tube (1011) connected with the connecting part (2), and the other end is equipped with a screw joint (1012) connected with the power output head (3).

3. The radio frequency treatment handpiece of claim 1, wherein, The treatment head accessory (301) includes a square block (3011) at the top and a base (3012);The square block (3011) and the base (3012) are equipped with inclined supports (3013);The bottom surface of the square block (3011) is fixedly connected with the base (3012) through two inclined supports (3013); The base (3012) is equipped with two strip-shaped through holes;The two ends of the flexible PCB board (302) are fixed on the treatment head accessory (301) after passing through the strip-shaped through holes of the treatment head accessory (301), and the protective cover (303) is clamped with the treatment head accessory (301).

4. The radio frequency treatment handpiece of claim 1, wherein, The thickness of the flexible PCB board (302) is 0.05mm-2mm.

5. The radio frequency treatment handpiece of claim 2, wherein, The handle main housings (101) are also equipped with an oval head (1013) at the top, which is connected with the semicircular tube (1011), and the oval head (1013) is equipped with an oval end face to facilitate the fixation of the handle and enhance the grip feeling.

6. The radio frequency treatment handpiece of claim 2, wherein, The handle main housings (101) are equipped with a control mainboard to control the operation of the handle, and are also equipped with a plurality of connection support ribs to lock and enhance the physical strength of the handle;The left and right handle main housings (101) are connected through the connection support ribs, and the two semicircular tubes (1011) form a circular tube interface after connection; The handle keys (102) are equipped with contact keys (1021), which are pressed by external force to control the circuit on-off of the contact keys (1021) and the control mainboard in the handle main housings (101).

7. The radio frequency treatment handpiece of claim 6, wherein, The hand holding part (1) is further provided with a fixed tail ring (103) fixedly connected with the circular pipe interface, further comprising a terminal fixing member (201) and a bottom terminal fixing member (202); one end of the terminal fixing member (201) is connected with the bottom terminal fixing member (202), and the other end is connected with the screw joint (1012).

8. The radio frequency treatment handpiece of claim 7, wherein, The terminal fixing member (201) is provided with two circular through holes (2011), a thimble is arranged on the circular through hole (2011), and after the electric wire passes through the inside of the handle main shell (101) through the circular pipe interface, the thimble is electrically connected with one end of the thimble on the circular through hole (2011); the other end of the thimble is electrically connected with the flexible PCB (302).

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