Treatment head, hand tool and microneedle treatment equipment

Abstract

The utility model discloses a treatment head, a hand tool and a microneedle treatment device, the treatment head comprises a needle plate assembly, an adapter plate assembly and a first flexible circuit board, the needle plate assembly is provided with a plurality of needle bodies; the needle plate assembly is in sliding connection with the adapter plate assembly, and the driving end of the handle drives the needle plate assembly to move relative to the adapter plate assembly in the first direction. The first flexible circuit board is respectively connected with the needle plate assembly and the adapter plate assembly, and radio frequency energy output by the handle sequentially passes through the adapter plate assembly, the first flexible circuit and the needle plate assembly and then controls the plurality of needle bodies to perform partition heating. According to the technical scheme, the service life of the treatment head is prolonged, the size of the treatment head is reduced, and the use stability and safety of the treatment head are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a treatment head, a hand tool and a micro-needle treatment device. Background Art

[0002] Radiofrequency microneedle technology uses tiny microneedles to inject high-energy radiofrequency energy into target groups at different depths, thereby promoting the recombination and regeneration of collagen. It can be used for facial rejuvenation applications such as skin tightening and scar removal, and can also be used for acne treatment and axillary hyperhidrosis treatment.

[0003] In the prior art, there are many contacts on the adapter plate of the treatment head. After the treatment head is installed on the handle, the probe on the handle is connected to the contacts on the adapter plate. Several needle bodies are installed on the treatment head, and each needle body must be connected to each contact on the adapter plate. At this time, the handle end can output different sequences of radio frequency energy to make the microneedle treatment head discharge in different areas.

[0004] But the problem is that, on the one hand, each needle needs to be connected to the contact on the adapter plate through a separate wire, which can easily cause the wire to break during the high-speed reciprocating motion of the needle plate. Once the wire breaks, the needle body cannot discharge in a partitioned manner, which in turn affects the effect of radio frequency treatment. On the other hand, setting wires that match the number of needles will result in a larger volume for the entire treatment head, and the spacing and arrangement density of the needles cannot be guaranteed, and the aesthetics and practicality are also poor. Secondly, the internal circuits are complex, and stability and safety cannot be effectively guaranteed. Utility Model Content

[0005] The main purpose of the utility model is to provide a treatment head, aiming to increase the service life of the treatment head, reduce the volume of the treatment head, and improve the stability and safety of the use of the treatment head.

[0006] To achieve the above-mentioned purpose, the treatment head proposed in the utility model includes a needle plate assembly, an adapter plate assembly and a first flexible circuit board, and the needle plate assembly is provided with a plurality of needle bodies; the needle plate assembly is slidably connected to the adapter plate assembly, and the driving end of the handle drives the needle plate assembly to move relative to the adapter plate assembly along a first direction; the first flexible circuit board is respectively connected to the needle plate assembly and the adapter plate assembly, and the radio frequency energy output by the handle passes through the adapter plate assembly, the first flexible circuit board and the needle plate assembly in turn, and controls the heating of a plurality of the needle bodies in partitions.

[0007] In one embodiment of the present application, the treatment head further includes a fixing assembly, and the fixing assembly is used to fix the first flexible circuit board portion to the needle plate assembly and / or the adapter plate assembly.

[0008] In one embodiment of the present application, the needle plate assembly includes a needle plate body and a guide member, a plurality of needle bodies are mounted on the needle plate body, the needle plate body is connected to the first flexible circuit board, a guide hole is provided on the adapter plate assembly, one end of the guide member is connected to the needle plate body, and the other end of the guide member is passed through the guide hole and is slidably connected to the adapter plate assembly.

[0009] In one embodiment of the present application, the fixing assembly includes a first fixing plate and a first fastener, the first end of the first flexible circuit board is located between the first fixing plate and the guide member, a first opening is opened on the first fixing plate, the first fastener is passed through the first opening and connected to the guide member.

[0010] In one embodiment of the present application, the adapter plate assembly includes an adapter plate body and a connecting member, the adapter plate body is connected to the connecting member, the adapter plate body is connected to the first flexible circuit board, and the fixing assembly is connected to the connecting member.

[0011] In one embodiment of the present application, the fixing assembly also includes a second fixing plate and a second fastener, the second end of the first flexible circuit board is located between the second fixing plate and the connecting member, a second opening is opened on the second fixing plate, and the second fastener is passed through the second opening and connected to the connecting member.

[0012] In one embodiment of the present application, the needle plate body, the first flexible circuit board and the adapter plate body are integrally formed.

[0013] In one embodiment of the present application, the length of the first flexible circuit board is greater than the distance between the needle plate body and the adapter plate body.

[0014] In one embodiment of the present application, the treatment head further includes a pressing block and an elastic member, wherein the elastic member is sleeved on the guide member and abuts against one end of the connecting member, and the pressing block is installed on the guide member and abuts against the other end of the elastic member.

[0015] In one embodiment of the present application, the treatment head also includes a shell, the shell has a accommodating cavity with an opening, a plurality of pinholes are opened at the bottom of the accommodating cavity, the needle plate assembly, the adapter plate assembly and the first flexible circuit board are embedded in the accommodating cavity and connected to the shell, and the needle body extends or retracts through one of the pinholes.

[0016] In one embodiment of the present application, the treatment head is also provided with a negative pressure tube and a suction assembly. The negative pressure tube is provided on the outer peripheral wall of the shell and is connected to the accommodating cavity. One end of the suction assembly is connected to the negative pressure tube.

[0017] In an embodiment of the present application, the shell is made of transparent material.

[0018] The utility model also proposes a hand tool, comprising a handle and the treatment head as described above, wherein the handle is detachably connected to the treatment head, and the handle comprises a second flexible circuit board, which is electrically connected to the treatment head so that the handle provides radio frequency energy to the treatment head.

[0019] In an embodiment of the present application, the second flexible circuit board includes a transfer portion, a first control portion, and a second control portion, and the transfer portion, the first control portion, and the second control portion are integrally formed.

[0020] The utility model also provides a micro-needle treatment device, comprising the hand tool as described above.

[0021] The technical solution of the utility model includes a needle plate assembly, an adapter plate assembly and a first flexible circuit board. A plurality of needle bodies are arranged on the needle plate assembly. The needle plate assembly is slidably connected to the adapter plate assembly. The needle plate assembly moves relative to the adapter plate assembly along a first direction to realize the reciprocating movement of the needle body along the first direction, thereby realizing the planar treatment effect of the treatment head. The first flexible circuit board is connected to the needle plate assembly and the adapter plate assembly respectively. The radio frequency energy output by the handle passes through the adapter plate assembly, the first flexible circuit board and the needle plate assembly, and controls the heating of a plurality of needle bodies in different zones. The needle plate assembly and the adapter plate assembly are connected by a flexible circuit board, and the radio frequency energy can be transmitted to a plurality of needle bodies on the needle plate assembly through the adapter plate assembly and the first flexible circuit board. The connection of the flexible circuit board can realize the integration effect of multiple lines, realize high-power transmission, and thereby realize the effect of controlling the heating of a plurality of needle bodies in different zones. At the same time, compared with the connection of wires, the flexible circuit board can withstand repeated movements, thereby improving the stability and safety of the treatment head. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of an embodiment of the treatment head of the utility model;

[0024] Figure 2 This is a schematic structural diagram of another embodiment of the treatment head of the utility model;

[0025] Figure 3 A top view of another embodiment of the treatment head of the utility model;

[0026] Figure 4 for Figure 3 Schematic diagram of the cross section of AA;

[0027] Figure 5 This is a structural schematic diagram of an embodiment of the hand tool of the utility model;

[0028] Figure 6 It is a structural schematic diagram of an embodiment of a handle of the hand tool of the utility model.

[0029] Description of Figure Numbers:

[0030] Label name Label name 100 Hand tools 43 Second fixing plate 10 Treatment head 431 Second opening 1 Needle plate assembly 44 Second fastener 11 Needle 5 Briquetting 12 Needle plate body 6 Elastic parts 13 Guide 7 case 2 Adapter plate assembly 71 Pinhole 21 Adapter plate body 8 Negative pressure tube 22 Connectors 9 Suction components 3 The first flexible circuit board 20 handle 4 Fixed components 201 Second flexible circuit board 41 First fixing plate 2011 Transfer Department 411 First opening 2012 First control unit 42 First fastener 2013 Second control unit

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0035] In the prior art, the needle plate and the power board are connected by wires, which may cause connection failure during repeated use, and a single wire cannot carry high power transmission. Therefore, the utility model proposes a treatment head with a longer service life and high power transmission.

[0036] The utility model provides a treatment head 10.

[0037] In an embodiment of the utility model, the treatment head 10 includes a needle plate assembly 1, an adapter plate assembly 2 and a first flexible circuit board 3, and a plurality of needle bodies 11 are provided on the needle plate assembly 1; the needle plate assembly 1 is slidably connected to the adapter plate assembly 2, and the driving end of the handle 20 drives the needle plate assembly 1 to move relative to the adapter plate assembly 2 along a first direction; the first flexible circuit board 3 is respectively connected to the needle plate assembly 1 and the adapter plate assembly 2, and the radio frequency energy output by the handle 20 passes through the adapter plate assembly 2, the first flexible circuit board and the needle plate assembly 1 in turn, and controls the heating of the plurality of needle bodies 11 in different zones.

[0038] The technical solution of the utility model includes a needle plate assembly 1, an adapter plate assembly 2 and a first flexible circuit board 3. The needle plate assembly 1 and the adapter plate assembly 2 use PCBA, which can transmit radio frequency energy to a plurality of needle bodies 11, thereby enabling the plurality of needle bodies 11 to release heat to perform heat treatment on the treated part. The first flexible circuit board 3 has a certain bending and stretching ability, and is not easy to be broken during the reciprocating movement of the needle plate, causing the circuit connection to fail. A plurality of needle bodies 11 are arranged on the needle plate assembly 1, and the needle plate assembly 1 is slidably connected to the adapter plate assembly 2. The needle plate assembly 1 moves relative to the adapter plate assembly 2 along a first direction to realize the reciprocating movement of the needle body 11 along the first direction, and the first direction is the first direction in the figure, thereby realizing the planar treatment effect of the treatment head 10. The first flexible circuit board 3 is respectively connected to the needle plate assembly 1 and the adapter plate assembly 2. The radio frequency energy output by the handle 20 passes through the adapter plate assembly 2, the first flexible circuit and the needle plate assembly 1, and controls the heating of several needle bodies 11 in different areas. The needle plate assembly 1 and the adapter plate assembly 2 are connected by a flexible circuit board. The radio frequency energy can be transmitted to the several needle bodies 11 on the needle plate assembly 1 through the adapter plate assembly 2 and the first flexible circuit board 3. The connection through the flexible circuit board can realize the integration effect of multiple lines, realize high-power transmission, and then realize the effect of controlling the heating of several needle bodies 11 in different areas. At the same time, compared with the connection of wires, the flexible circuit board can withstand multiple repeated movements, thereby improving the service life of the treatment head 10.

[0039] In one embodiment of the present application, the treatment head 10 further includes a fixing assembly 4 , and the fixing assembly 4 is used to fix a portion of the first flexible circuit board 3 on the needle plate assembly 1 and / or the adapter plate assembly 2 .

[0040] In this embodiment, the two ends of the first flexible circuit board 3 are further reinforced with the needle plate assembly 1 and the adapter plate assembly 2 respectively through the fixing assembly 4, which can improve the connection strength of the connection between the first flexible circuit board 3 and the needle plate assembly 1 and / or the adapter plate assembly 2, thereby improving the service life of the treatment head 10.

[0041] In one embodiment of the present application, the needle plate assembly 1 includes a needle plate body 12 and a guide member 13, a plurality of needle bodies 11 are installed on the needle plate body 12, the needle plate body 12 is connected to the first flexible circuit board 3, a guide hole is opened on the adapter plate assembly 2, one end of the guide member 13 is connected to the needle plate body 12, and the other end of the guide member 13 is passed through the guide hole and is slidably connected to the adapter plate assembly 2.

[0042] In this embodiment, the needle plate assembly 1 includes a needle plate body 12 and a guide member 13. A guide hole is opened on the adapter plate assembly 2. One end of the guide member 13 is arranged on the other side of the needle plate body 12 away from the plurality of needle bodies 11, and the other end is passed through the guide hole and is slidably connected to the adapter plate assembly 2. The matching connection between the guide hole and the guide member 13 can limit the sliding trajectory of the needle plate body 12, so that it moves along the first direction without deviating to the side, thereby preventing the needle plate body 12 from tilting and affecting the treatment effect of the treatment head 10.

[0043] In one embodiment of the present application, the fixing assembly 4 includes a first fixing plate 41 and a first fastener 42. The first end of the first flexible circuit board 3 is located between the first fixing plate 41 and the guide member 13. A first opening 411 is formed on the first fixing plate 41. The first fastener 42 is passed through the first opening 411 and is connected to the guide member 13.

[0044] In this embodiment, the fixing assembly 4 includes a first fixing plate 41 and a first fastener 42. One end of the first flexible circuit board 3 is arranged between the first fixing plate 41 and the guide member 13. The first opening 411 is opened on the first fixing plate 41. The first fastener 42 passes through the first opening 411 and is connected to the guide member 13, thereby fixing the first fixing plate 41 on the guide member 13 and fixing one end of the first flexible circuit board 3.

[0045] In one embodiment of the present application, the adapter board assembly 2 includes an adapter board body 21 and a connector 22 , the adapter board body 21 is connected to the connector 22 , the adapter board body 21 is connected to the first flexible circuit board 3 , and the fixing assembly 4 is connected to the connector 22 .

[0046] In this embodiment, the adapter plate assembly 2 includes an adapter plate body 21 and a connecting piece 22, the adapter plate body 21 and the connecting piece 22 are connected, the other end of the first flexible circuit board 3 is connected to the adapter plate body 21, and the fixing assembly 4 is connected to the connecting piece 22, thereby improving the connection strength between the adapter plate assembly 2 and the other end of the first flexible circuit board 3, thereby improving the service life of the treatment head 10.

[0047] In one embodiment of the present application, the fixing assembly 4 also includes a second fixing plate 43 and a second fastener 44. The second end of the first flexible circuit board 3 is located between the second fixing plate 43 and the connecting member 22. A second opening 431 is opened on the second fixing plate 43. The second fastener 44 is passed through the second opening 431 and is connected to the connecting member 22.

[0048] In this embodiment, the first fastener 42 passes through the first opening 411 and is connected to the connector 22 to connect and fix the other end of the first flexible circuit board 3 to the adapter plate assembly 2, further improving the connection strength between the adapter plate assembly 2 and the other end of the first flexible circuit board 3, thereby improving the service life of the treatment head 10.

[0049] In one embodiment of the present application, the needle plate body 12 , the first flexible circuit board 3 and the adapter plate body 21 are integrally formed.

[0050] In this embodiment, the needle plate body 12, the first flexible circuit board 3 and the adapter plate body 21 are integrally formed, which can be more convenient to process and improve the connection strength between the three, further preventing the connection between the three from breaking when the needle plate moves. The connection between the first flexible circuit board 3 and the needle plate body 12 and the adapter plate body 21 adopts a three-layer structure, which is hard, soft and hard. The flexible circuit board is integrally formed with two hard boards, and the hard board is TG150.

[0051] In one embodiment of the present application, the length of the first flexible circuit board 3 is greater than the distance between the needle plate body 12 and the adapter plate body 21 .

[0052] In this embodiment, the first flexible circuit board 3 is placed in the treatment head 10 in an "S" shape, and then the "S" shape can effectively utilize the internal space of the treatment head 10 and reduce the volume of the treatment head 10. During the treatment process of the needle plate body 12, it moves toward the first direction, so that the first flexible circuit board 3 is extended. The length of the first flexible circuit board 3 is greater than the distance between the needle plate body 12 and the adapter plate body 21, which can prevent the first flexible circuit board 3 from being pulled to damage the connection between the first flexible circuit board 3 and the needle plate body 12 or the adapter plate body 21, thereby making the treatment head 10 ineffective.

[0053] In one embodiment of the present application, the treatment head 10 also includes a pressing block 5 and an elastic member 6. The elastic member 6 is sleeved on the guide member 13 and abuts against one end of the connecting member 22. The pressing block 5 is installed on the guide member 13 and abuts against the other end of the elastic member 6.

[0054] In this embodiment, the elastic member 6 is sleeved on the guide member 13 and abuts against one end of the connecting member 22. The pressing block 5 is arranged on the guide member 13. The connection between the pressing block 5 and the guide member 13 is connected by screws. A through hole is opened on the pressing block 5, and the pressing block 5 is fixed to the guide member 13 by screws and abuts against the other end of the elastic member 6 to push the pressing block 5, so that the guide member 13 moves along the first direction, thereby driving the needle plate body 12 to move in the first direction and squeezing the elastic member 6 at the same time. After the treatment is completed, the pressing block 5 is no longer pushed, the elastic member 6 resumes its deformation, and drives the needle plate body 12 to return to its original position together, thereby realizing automatic resetting of the needle plate body 12.

[0055] In one embodiment of the present application, the treatment head 10 also includes a shell 7, the shell 7 has a accommodating cavity with an opening, a plurality of needle holes are opened at the bottom of the accommodating cavity, the needle plate assembly 1, the adapter plate assembly 2 and the first flexible circuit board 3 are embedded in the accommodating cavity and connected to the shell 7, and a needle body 11 extends or retracts through a needle hole.

[0056] In this embodiment, the shell 7 is made of medical-grade PC plastic, which is safe and non-toxic, and is transparent itself, so that the needle plate assembly 1, the adapter plate assembly 2 and the needle body 11 inside the shell 7 can be observed. The transverse cross-sectional shape of the shell 7 is rectangular, which matches the shape of the array formed by a number of needle bodies 11. The cross-sectional area of ​​the shell 7 gradually increases from the needle outlet end to the other end, which facilitates the movement of the needle plate assembly 1 inside the accommodating cavity of the shell 7 without being restricted by the shell 7, making the needle outlet of the treatment head 10 smoother. Secondly, the shell 7 made of transparent plastic can facilitate the user to preliminarily judge whether the treatment head 10 is normal before use. For example, the user can observe whether the end of the first flexible circuit board 3 is broken, etc., to ensure the safety of subsequent use.

[0057] In one embodiment of the present application, the treatment head 10 is also provided with a negative pressure tube 8 and a suction assembly 9. The negative pressure tube 8 is arranged on the outer peripheral wall of the shell 7 and is connected to the accommodating cavity. One end of the suction assembly 9 is connected to the negative pressure tube 8.

[0058] In this embodiment, the treatment head 10 is also provided with a negative pressure tube 8 connected to the accommodating chamber. The negative pressure tube 8 can be used to draw the accommodating chamber into a state close to vacuum, so that the treatment head 10 can be adsorbed on the skin surface of the person being treated, reduce the air resistance when the needle body 11 breaks through the skin of the person being treated, and absorb the skin of the treatment area, so that the depth of the needle body 11 piercing is consistent. The treatment head 10 also includes a suction component 9, which includes a silicone tube, an upper filter shell, a lower filter shell, a water-absorbing sponge and a sealing ring. One end of the silicone tube is connected to the negative pressure tube 8, and the other end is connected to the upper filter shell. The upper filter shell and the lower filter shell are enclosed to form an accommodating chamber. The water-absorbing sponge is arranged in the accommodating chamber, which can absorb the blood or sweat of the person being treated, etc., to prevent secondary pollution. The lower filter shell is connected to an air extraction device, and a sealing ring is provided at the connection to prevent air leakage.

[0059] The present invention also provides a hand tool 100, which includes a handle 20 and the above-mentioned treatment head 10. The specific structure of the treatment head 10 refers to the above-mentioned embodiment. Since the present hand tool 100 adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. The handle 20 is detachably connected to the treatment head 10, and the handle 20 includes a second flexible circuit board 201, and the second flexible circuit board 201 is electrically connected to the treatment head 10 so that the handle 20 provides radio frequency energy to the treatment head 10.

[0060] In this embodiment, the handle 20 and the treatment head 10 are detachably connected to achieve rapid replacement of treatment heads of different specifications and improve treatment efficiency. The handle 20 and the treatment head 10 are connected by a second flexible circuit board to transmit radio frequency energy from the handle 20 to the treatment head 10. By setting the second flexible circuit board 201, the number of needle bodies 11 set on the handle 20 can be reduced accordingly. Similarly, the number of contacts on the handle 20 is also reduced accordingly, and the number of needle bodies 11 matches the number of contacts. Different groups can be divided according to the different heating forms of the needle bodies 11, and each group is connected to a passage. It is only necessary to set a corresponding number of needle bodies 11 according to the number of groups required for zone heating to achieve zone heating. The energy transmitted by the second flexible circuit board 201 of the handle 20 can enter the adapter board assembly 2 through different passages, and after passing through the first flexible circuit board 3 and the needle board assembly 1, the needle board assembly 1 transmits the energy to different needle bodies 11 respectively, and heats the different needle bodies 11 in different zones.

[0061] In an embodiment of the present application, the second flexible circuit board 201 includes a transfer portion 2011 , a first control portion 2012 , and a second control portion 2013 , and the transfer portion 2011 , the first control portion 2012 , and the second control portion 2013 are integrally formed.

[0062] In this embodiment, the adapter 2011, the first control part 2012 and the second control part 2013 are integrally formed, which can be more convenient for processing, and at the same time improve the connection strength between the three, further prevent the connection between the three from breaking, and thus improve the service life of the microneedle therapeutic device. Secondly, the adapter 2011, the first control part 2012 and the second control part 2013 are themselves made of flexible materials. The first control part 2012 and the second control part 2013 can be distributed on two adjacent sides of the handle 20, and the adapter 2011 can be located on an end face of the handle 20 close to the treatment head 10. Therefore, the adapter 2011, the first control part 2012 and the second control part 2013 made of flexibility can be well accommodated in the internal space of the handle 20, avoiding the difficulty of operation caused by the excessive size of the handle 20.

[0063] The present invention also provides a microneedle treatment device, comprising the hand tool 100 as described above.

[0064] The microneedle treatment device provided in the embodiment of the present application has the hand tool 100 in any of the above embodiments, and thus has the beneficial effects brought by the hand tool 100 in any of the above embodiments, which will not be described in detail here.

[0065] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A treatment head, characterized in that: include: A needle plate assembly, wherein a plurality of needle bodies are provided on the needle plate assembly; An adapter plate assembly, the needle plate assembly is slidably connected to the adapter plate assembly, and the driving end of the handle drives the needle plate assembly to move relative to the adapter plate assembly along a first direction; A first flexible circuit board, wherein the first flexible circuit board is respectively connected to the needle plate assembly and the adapter plate assembly; the radio frequency energy output by the handle passes through the adapter plate assembly, the first flexible circuit board and the needle plate assembly in sequence, and controls the heating of several needle body partitions.

2. The treatment head according to claim 1, characterized in that: The treatment head further comprises a fixing assembly, and the fixing assembly is used to fix the first flexible circuit board portion to the needle plate assembly and / or the adapter plate assembly.

3. The treatment head according to claim 2, characterized in that: The needle plate assembly includes a needle plate body and a guide member, a plurality of needle bodies are mounted on the needle plate body, the needle plate body is connected to the first flexible circuit board, a guide hole is provided on the adapter plate assembly, one end of the guide member is connected to the needle plate body, and the other end of the guide member is passed through the guide hole and is slidably connected to the adapter plate assembly.

4. The treatment head according to claim 3, characterized in that: The fixing assembly includes a first fixing plate and a first fastener, the first end of the first flexible circuit board is located between the first fixing plate and the guide member, the first fixing plate is provided with a first opening, the first fastener is passed through the first opening and connected to the guide member.

5. The treatment head according to claim 3, characterized in that: The adapter plate assembly includes an adapter plate body and a connecting piece, the adapter plate body is connected to the connecting piece, the adapter plate body is connected to the first flexible circuit board, and the fixing assembly is connected to the connecting piece.

6. The treatment head according to claim 5, characterized in that: The fixing assembly also includes a second fixing plate and a second fastener, the second end of the first flexible circuit board is located between the second fixing plate and the connecting member, the second fixing plate is provided with a second opening, the second fastener is passed through the second opening and connected to the connecting member.

7. The treatment head according to claim 5, characterized in that: The needle plate body, the first flexible circuit board and the adapter plate body are integrally formed.

8. The treatment head according to claim 5, characterized in that: The length of the first flexible circuit board is greater than the distance between the needle plate body and the adapter plate body.

9. The treatment head according to claim 5, characterized in that: The treatment head further comprises a pressing block and an elastic member, wherein the elastic member is sleeved on the guide member and abuts against one end of the connecting member, and the pressing block is mounted on the guide member and abuts against the other end of the elastic member.

10. The treatment head according to claim 1, characterized in that: The treatment head also includes a shell, which has a accommodating cavity with an opening, and a plurality of needle holes are opened at the bottom of the accommodating cavity. The needle plate assembly, the adapter plate assembly and the first flexible circuit board are embedded in the accommodating cavity and connected to the shell, and a needle body extends out or retracts through one of the needle holes.

11. The treatment head according to claim 10, characterized in that: The treatment head is also provided with a negative pressure tube and a suction assembly. The negative pressure tube is arranged on the outer peripheral wall of the shell and is communicated with the accommodating cavity. One end of the suction assembly is connected to the negative pressure tube.

12. The treatment head according to claim 10, characterized in that: The shell is made of transparent material.

13. A hand tool, characterized in that: The invention comprises a handle and a treatment head as claimed in any one of claims 1 to 12, wherein the handle is detachably connected to the treatment head, and the handle comprises a second flexible circuit board, and the second flexible circuit board is electrically connected to the treatment head so that the handle provides radio frequency energy to the treatment head.

14. The hand tool according to claim 13, characterized in that The second flexible circuit board includes a transfer portion, a first control portion, and a second control portion, and the transfer portion, the first control portion, and the second control portion are integrally formed.

15. A microneedle treatment device, characterized in that: A hand tool comprising any one of claims 13-14.

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