Treatment head, handpiece and microneedle treatment equipment

Abstract

This application discloses a treatment head, a handpiece, and a microneedle treatment device, in which the treatment head includes a needle plate component, an adapter plate component, and a first flexible substrate, the needle plate component is provided with several needles, the needle plate component is slidably connected to the adapter plate component, a driving end of a handle drives the needle plate component to move along a first direction relative to the adapter plate component, the first flexible substrate is connected to the needle plate component and the adapter plate component respectively, and high-frequency energy output by the handle passes through the adapter plate component, the first flexible substrate 3, and the needle plate component in sequence, and is controlled to locally heat the several needles. The technical solution of this application aims to improve the service life of the treatment head, reduce the volume of the treatment head, and improve the stability and safety of the treatment head when used.

Description

[Technical Field]

[0001] This application claims priority from a Chinese patent application filed on November 2, 2023, bearing application number 202322978391.1, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of medical devices, and in particular to treatment heads, handpieces and microneedle treatment equipment. [Background technology]

[0003] Radiofrequency microneedle technology utilizes tiny microneedles to inject high-energy radiofrequency energy into target groups at different depths, promoting collagen reorganization and regeneration, and may be used for facial rejuvenation applications such as skin tightening and scar removal, as well as for the treatment of acne and underarm hyperhidrosis.

[0004] In the prior art, the adapter plate of the treatment head has many contacts, and when the treatment head is attached to the handle, the probes on the handle communicate with the contacts on the adapter plate, and several needles are attached to the treatment head, and each needle communicates with each contact on the adapter plate. At this time, the handle can output high-frequency energy in different sequences, allowing the microneedle treatment head to discharge in sections.

[0005] However, this approach poses the following problems: First, each needle must be connected to the adapter plate's contacts by a separate wire, which can easily break during the high-speed reciprocating motion of the needle plate. If the wire breaks, the needles will no longer be able to discharge in sections, ultimately affecting the effectiveness of high-frequency treatment. Second, installing wires according to the number of needles increases the overall volume of the treatment head, fails to ensure the proper needle pitch and arrangement density, and is unsightly and unpractical. Furthermore, the internal wiring is complex, making it difficult to effectively guarantee stability and safety. Summary of the Invention [Problem to be solved by the invention]

[0006] The main objective of this application is to provide a treatment head that aims to improve 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. [Means for solving the problem]

[0007] To achieve the above objectives, the treatment head proposed in this application is connected to one side of a handle, and includes a needle plate component, an adapter plate component and a first flexible substrate, wherein the needle plate component is provided with several needles, the needle plate component is movably connected to the adapter plate component, the driving end of the handle drives the needle plate component to move back and forth relative to the adapter plate component, the first flexible substrate is electrically connected to the needle plate component and the adapter plate component respectively, and the high-frequency energy output by the handle is controlled to locally heat several of the needles after passing through the adapter plate component, the first flexible substrate and the needle plate component in sequence.

[0008] In one embodiment of the present application, the treatment head further includes a fixing component, which is used to partially fix the first flexible substrate to the needle plate component and / or the adapter plate component.

[0009] In one embodiment of the present application, the needle plate component includes a needle plate body and a guide member, some of the needles are attached to the needle plate body, the needle plate body is connected to the first flexible substrate, a guide hole is opened in the adapter plate component, one end of the guide member is connected to the needle plate body, and the other end of the guide member is inserted into the guide hole and slidably connected to the adapter plate component.

[0010] In one embodiment of the present application, the fixing component includes a first fixing plate and a first fastening member, a first end of the first flexible substrate is located between the first fixing plate and the guide member, a first opening is formed in the first fixing plate, and the first fastening member is inserted into the first opening and connected to the guide member.

[0011] In one embodiment of the present application, the adapter plate component 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 substrate, and the fixing component is connected to the connecting member.

[0012] In one embodiment of the present application, the fixing component further includes a second fixing plate and a second fastening member, a second end of the first flexible substrate is located between the second fixing plate and the connecting member, a second opening is formed in the second fixing plate, and the second fastening member is inserted into the second opening and connected to the connecting member.

[0013] In one embodiment of the present application, the needle plate body, the first flexible substrate and the adapter plate body are integrally molded.

[0014] In one embodiment of the present application, the length of the first flexible substrate is greater than the pitch between the needle plate body and the adapter plate body.

[0015] In one embodiment of the present application, the treatment head further includes a pressing block and an elastic member fitted into the guide member and abutting one end of the connecting member, and the pressing block is attached to the guide member and abutting the other end of the elastic member.

[0016] In one embodiment of the present application, the treatment head further includes a case having an opening-type storage chamber, and several needle holes are opened at the bottom of the storage chamber. The needle plate component, the adapter plate component and the first flexible substrate are fitted into the storage chamber and connected to the case, and each needle extends or retracts through each needle hole.

[0017] In one embodiment of the present application, the treatment head further includes a negative pressure tube provided on the outer wall of the case and communicating with the receiving chamber, and a suction component having one end connected to the negative pressure tube.

[0018] In one embodiment of the present application, the case is made of a transparent material.

[0019] The present application further proposes a handpiece including a handle and a treatment head as described above, wherein the handle is removably connected to the treatment head, the handle including a second flexible substrate, the second flexible substrate being electrically connected to the treatment head such that the handle provides high frequency energy to the treatment head.

[0020] In one embodiment of the present application, the second flexible substrate includes an integrally molded adapter, a first control portion and a second control portion.

[0021] The present application further proposes a microneedle treatment device including a handpiece as described above.

[0022] (beneficial effects) The technical solution of this application includes a needle plate component, an adapter plate component, and a first flexible substrate, the needle plate component having several needles, the needle plate component being movably connected to the adapter plate component, and the needle plate component being able to move back and forth relative to the adapter plate component to realize the needles' movement along a first direction and thus realize the planar treatment effect of the treatment head. The first flexible substrate is connected to the needle plate component and the adapter plate component respectively, and high-frequency energy output from the handle passes through the adapter plate component, the first flexible substrate, and the needle plate component to control the segmented heating of several needles. By connecting the needle plate component and the adapter plate component via the flexible substrate, the high-frequency energy can be transmitted to several needles on the needle plate component via the adapter plate component and the first flexible substrate, the connection using the flexible substrate realizes the integration effect of multiple circuits to achieve high-power transmission and thus achieve the effect of segmenting several needles to control heating. At the same time, compared with a connection using electric wires, the flexible substrate can withstand repeated movements more effectively, improving the stability and safety of the treatment head when used.

[0023] In order to more clearly explain the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. The drawings in the following description are only some embodiments of the present application, and it is obvious to those skilled in the art that other drawings can be obtained based on the structures shown in these drawings without any creative work. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a structural schematic diagram of one embodiment of the treatment head of the present application. [Figure 2] FIG. 10 is a structural schematic diagram of another embodiment of the treatment head of the present application. [Figure 3] FIG. 10 is a top view of yet another embodiment of the treatment head of the present application. [Figure 4] FIG. 4 is a schematic cross-sectional view taken along line AA in FIG. [Figure 5] 1 is a structural schematic diagram of an embodiment of a handpiece of the present application. [Figure 6] 1 is a structural schematic diagram of an embodiment of a handle of a handpiece of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0025] The realization of the object, functional features and advantages of the present application will be further explained in conjunction with the examples and with reference to the drawings. The technical solutions in the embodiments of the present application will be described below clearly and completely in conjunction with the drawings in the embodiments of the present application, but it is obvious that the described embodiments are only a part of the embodiments of the present application, and are not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without any creative work fall within the scope of protection of the present application.

[0026] In addition, if there is a description of directional instructions (e.g., up, down, left, right, front, back, etc.) in the examples of this application, this directional instruction is only used to interpret the relative positional relationships and movement conditions between each member in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional instruction will also change accordingly.

[0027] Furthermore, when references to "first," "second," etc. appear in the embodiments of the present application, such references are for descriptive purposes only and should not be understood as indicating or implying the relative importance of, or the number of, the indicated technical features. Accordingly, features defined by "first" or "second" may explicitly or implicitly include at least one of the features. Furthermore, technical solutions in each embodiment may be combined with each other, but this must be based on what a person skilled in the art can achieve. If the combination of technical solutions contradicts or is not feasible, such combination of technical solutions shall be deemed to not exist and to be outside the scope of protection claimed by the present application.

[0028] The present application proposes a treatment head 10 that aims to improve the service life of the treatment head 10, reduce the volume of the treatment head 10, and improve the stability and safety of the treatment head 10 when used.

[0029] In the embodiment of the present application, the treatment head 10 includes a needle plate component 1, an adapter plate component 2, and a first flexible substrate 3, the needle plate component 1 is provided with several needles 11, the needle plate component 1 is movably connected to the adapter plate component 2, the driving end of the handle 20 drives the needle plate component 1 to move back and forth relative to the adapter plate component 2, i.e., to move along a first direction and along a direction opposite to the first direction, the first flexible substrate 3 is electrically connected to the needle plate component 1 and the adapter plate component 2 respectively, and the high-frequency energy output by the handle 20 passes through the adapter plate component 2, the first flexible substrate 3, and the needle plate component 1 in sequence, and then controls the several needles 11 to be heated in sections.

[0030] The technical solution of the present application includes a needle plate component 1, an adapter plate component 2, and a first flexible substrate 3. The needle plate component 1 and the adapter plate component 2 are made of PCBA (printed circuit board assembly), which can transmit high-frequency energy to several needles 11, thereby allowing the several needles 11 to dissipate heat and provide heat treatment to the treatment area. The first flexible substrate 3 has a certain bending and stretching ability, and is not likely to be torn during the needle plate's reciprocating movement, causing damage to the circuit connection. The needle plate component 1 is provided with several needles 11, and the needle plate component 1 is slidably connected to the adapter plate component 2. The needle plate component 1 moves in a first direction relative to the adapter plate component 2 to realize the reciprocating movement of the needles 11 in a first direction, which is the first direction in the drawings, thereby realizing the planar treatment effect of the treatment head 10. The first flexible substrate 3 is connected to the needle plate component 1 and the adapter plate component 2 respectively. The high-frequency energy output from the handle 20 passes through the adapter plate component 2, the first flexible substrate 3 and the needle plate component 1, and then controls several needles 11 to generate heat in sections. By connecting the needle plate component 1 and the adapter plate component 2 via the flexible substrate, the high-frequency energy can be transmitted through the adapter plate component 2 and the first flexible substrate 3 to several needles 11 on the needle plate component 1. The connection using the flexible substrate achieves the integration effect of multiple circuits, achieving high power transmission, and thus achieving the effect of dividing several needles 11 and controlling their heating. At the same time, compared to connection using electrical wires, the flexible substrate can better withstand repeated movements, improving the service life of the treatment head.

[0031] In one embodiment of the present application, the treatment head 10 further comprises a fixing component 4 for partially fixing the first flexible substrate 3 to the needle plate component 1 and / or the adapter plate component 2.

[0032] In this embodiment, both ends of the first flexible substrate 3 are further strengthened to the needle plate component 1 and the adapter plate component 2, respectively, via the fixing component 4, thereby improving the connection strength of the connection points between the first flexible substrate 3 and the needle plate component 1 and / or the adapter plate component 2, thereby improving the service life of the treatment head 10.

[0033] In one embodiment of the present application, the needle plate component 1 includes a needle plate body 12 and a guide member 13, several needles 11 are attached to the needle plate body 12, the needle plate body 12 is connected to a first flexible substrate 3, a guide hole is opened in the adapter plate component 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 inserted into the guide hole and slidably connected to the adapter plate component 2.

[0034] In this embodiment, the needle plate component 1 includes a needle plate body 12 and a guide member 13, a guide hole is opened in the adapter plate component 2, one end of the guide member 13 is provided on the other side of the needle plate body 12 away from some of the needles 11, and the other end is inserted into the guide hole and slidably connected to the adapter plate component 2, and the engagement connection between the guide hole and the guide member 13 can limit the sliding trajectory of the needle plate body 12, allowing it to move along the first direction and prevent it from shifting sideways, thereby preventing distortion of the needle plate body 12 from affecting the treatment effect of the treatment head 10.

[0035] In one embodiment of the present application, the fixing component 4 includes a first fixing plate 41 and a first fastening member 42, a first end of the first flexible substrate 3 is located between the first fixing plate 41 and the guide member 13, a first opening 411 is formed in the first fixing plate 41, and the first fastening member 42 is inserted into the first opening 411 and connected to the guide member 13.

[0036] In this embodiment, the fixing component 4 includes a first fixing plate 41 and a first fastening member 42, one end of the first flexible substrate 3 is disposed between the first fixing plate 41 and the guide member 13, a first opening 411 is formed in the first fixing plate 41, and the first fastening member 42 passes through the first opening 411 and is connected to the guide member 13, further fixing the first fixing plate 41 to the guide member 13 and fixing one end of the first flexible substrate 3.

[0037] In one embodiment of the present application, the adapter plate component 2 includes an adapter plate body 21 and a connecting member 22, the adapter plate body 21 is connected to the connecting member 22, the adapter plate body 21 is connected to the first flexible substrate 3, and the fixing component 4 is connected to the connecting member 22.

[0038] In this embodiment, the adapter plate component 2 includes an adapter plate body 21 and a connecting member 22, the adapter plate body 21 and the connecting member 22 are connected, the other end of the first flexible substrate 3 is connected to the adapter plate body 21, and the fixing component 4 is connected to the connecting member 22, which improves the connection strength between the adapter plate component 2 and the other end of the first flexible substrate 3, and thus improves the service life of the treatment head 10.

[0039] In one embodiment of the present application, the fixing component 4 further includes a second fixing plate 43 and a second fastening member 44, the second end of the first flexible substrate 3 is located between the second fixing plate 43 and the connecting member 22, a second opening 431 is formed in the second fixing plate 43, and the second fastening member 44 is inserted into the second opening 431 and connected to the connecting member 22.

[0040] In this embodiment, the first fastening member 42 passes through the first opening 411 and is connected to the connecting member 22, thereby connecting and fixing the other end of the first flexible substrate 3 to the adapter plate component 2, further improving the connection strength between the adapter plate component 2 and the other end of the first flexible substrate 3, and ultimately improving the service life of the treatment head 10.

[0041] In one embodiment of the present application, the needle plate body 12, the first flexible substrate 3 and the adapter plate body 21 are integrally molded.

[0042] In this embodiment, the needle plate body 12, the first flexible substrate 3, and the adapter plate body 21 are integrally molded, which makes processing easier and at the same time improves the connection strength between the three, and further prevents the connection between the three from breaking when the needle plate moves. The connection points between the first flexible substrate 3, the needle plate body 12, and the adapter plate body 21 adopt a triple structure, consisting of hard, soft, and hard, and the flexible substrate and two hard plates are integrally molded, with the hard plates being made of TG150.

[0043] In one embodiment of the present application, the length of the first flexible substrate 3 is greater than the pitch between the needle plate body 12 and the adapter plate body 21 .

[0044] In this embodiment, the first flexible substrate 3 is arranged in an "S" shape within the treatment head 10, and the "S" shape can effectively utilize the internal space of the treatment head 10 and reduce the volume of the treatment head 10. When the needle plate body 12 moves in the first direction during treatment, the first flexible substrate 3 is stretched. Since the length of the first flexible substrate 3 is greater than the distance between the needle plate body 12 and the adapter plate body 21, the first flexible substrate 3 is prevented from being pulled, which would destroy the connection between the first flexible substrate 3 and the needle plate body 12 or the adapter plate body 21 and ultimately cause the treatment head 10 to malfunction.

[0045] In one embodiment of the present application, the treatment head 10 further includes a pressure block 5 and an elastic member 6 that is fitted into the guide member 13 and abuts against one end of the connecting member 22, and the pressure block 5 is attached to the guide member 13 and abuts against the other end of the elastic member 6.

[0046] In this embodiment, the elastic member 6 is fitted into the guide member 13 and abuts against one end of the connecting member 22, the pressure block 5 is installed on the guide member 13, and the connection between the pressure block 5 and the guide member 13 is via a screw, and a through-hole is opened in the pressure block 5, and the pressure block 5 is fixed to the guide member 13 via a screw and abuts against the other end of the elastic member 6 to push the pressure block 5 forward, thereby moving the guide member 13 along the first direction, and thus moving the needle plate body 12 in the first direction and simultaneously pressing the elastic member 6. When the treatment is completed, the pressure block 5 is no longer pushed forward, the deformation of the elastic member 6 is restored, and the needle plate body 12 is returned to its original position, thereby realizing the automatic return of the needle plate body 12.

[0047] In one embodiment of the present application, the treatment head 10 further includes a case 7 having an opening-type storage chamber, and several needle holes are opened at the bottom of the storage chamber. The needle plate component 1, the adapter plate component 2 and the first flexible substrate 3 are fitted into the storage chamber and connected to the case 7, and each needle 11 extends or retracts through each needle hole.

[0048] In this embodiment, the case 7 is made of medical-grade PC plastic, which is safe and non-toxic. Furthermore, the case 7 is transparent, allowing users to observe the needle plate component 1, adapter plate component 2, and needle 11 projection status within the case 7. The horizontal cross-section of the case 7 is rectangular, and the cross-sectional area of ​​the needle projection surface of the case 7 gradually increases from one end to the other to accommodate the array of needles 11. This facilitates unrestricted movement of the needle plate component 1 within the storage chamber of the case 7, facilitating smooth needle projection of the treatment head 10. Furthermore, the case 7 being made of transparent plastic allows users to easily determine whether the treatment head 10 is normal before use. For example, users can observe whether the end of the first flexible substrate 3 is broken or not, to ensure safety during subsequent use.

[0049] In one embodiment of the present application, the treatment head 10 further includes a negative pressure tube 8 provided on the outer wall of the case 7 and communicating with the storage chamber, and a suction component 9 having one end connected to the negative pressure tube 8.

[0050] In this embodiment, the treatment head 10 is further equipped with a negative pressure tube 8 connected to the storage chamber. The negative pressure tube 8 can be used to create a vacuum-like state within the storage chamber, allowing the treatment head 10 to adhere to the surface of the patient's skin, reducing air resistance when the needle 11 penetrates the patient's skin and sucking the skin in the treatment area to ensure consistent penetration depth. The treatment head 10 also includes a suction component 9, which includes a silicone tube, an upper filter case, a lower filter case, an absorbent 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 case. The upper and lower filter cases surround each other to form a storage chamber, and the absorbent sponge is installed within the storage chamber to prevent secondary contamination by absorbing the patient's blood or sweat. An air extraction device is connected to the lower filter case, and a sealing ring is installed at the connection to prevent air leakage.

[0051] The present application further proposes a handpiece 100 including a handle 20 and the above-described treatment head 10, the specific structure of which is to be referred to in the above-described embodiments, and the present handpiece 100 employs all the technical solutions of all the above-described embodiments, and therefore has at least all the beneficial effects of the technical solutions of the above-described embodiments, and therefore further description will be omitted here. The handle 20 is detachably connected to the treatment head 10, and the handle 20 includes a second flexible substrate 201, which is electrically connected to the treatment head 10 so that the handle 20 provides high-frequency energy to the treatment head 10.

[0052] In this embodiment, a detachable connection is adopted between the handle 20 and the treatment head 10, allowing for quick replacement of treatment heads with different specifications and improving treatment efficiency. Connecting the handle 20 and the treatment head 10 via a second flexible substrate allows high-frequency energy to be transmitted from the handle 20 to the treatment head 10. By installing the second flexible substrate 201, the number of needles 11 installed on the handle 20 can be reduced accordingly, and the number of contacts on the handle 20 can also be reduced accordingly, so that the number of needles 11 and the number of contacts match. Different groups can be defined based on the different heating types of the needles 11, with each group connected to a single passage. Only the corresponding number of needles 11 can be installed based on the number of groups required for segment heating to achieve segment heating. The energy transmitted by the second flexible substrate 201 of the handle 20 can enter the adapter plate component 2 via different passages. After passing through the first flexible substrate 3 and the needle plate component 1, the needle plate component 1 transmits the energy to different needles 11, respectively, and segment heating occurs through the different needles 11.

[0053] In one embodiment of the present application, the second flexible substrate 201 includes an adapter 2011, a first control unit 2012 and a second control unit 2013 that are integrally molded therewith.

[0054] In this embodiment, the adapter 2011, the first control unit 2012, and the second control unit 2013 are integrally molded, which allows for more convenient processing and at the same time improves the connection strength between the three, further preventing the connection from being broken, thereby improving the service life of the microneedle treatment device. In addition, the adapter 2011, the first control unit 2012, and the second control unit 2013 are themselves made of flexible materials, and the first control unit 2012 and the second control unit 2013 may be distributed on adjacent both sides of the handle 20, or the adapter 2011 may be located on one end of the handle 20 closer to the treatment head 10. Therefore, the flexible adapter 2011, the first control unit 2012, and the second control unit 2013 can be easily accommodated in the internal space of the handle 20, avoiding operational difficulties caused by the excessive manufacturing size of the handle 20.

[0055] The present application further proposes a microneedle treatment device including the handpiece 100 as described above.

[0056] The microneedle treatment equipment provided in the embodiments of the present application has the handpiece 100 in any of the above-mentioned embodiments, and therefore has the beneficial effects of the handpiece 100 in any of the above-mentioned embodiments, so further description will be omitted here.

[0057] Although the embodiments of the present application have been described above, those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments are merely exemplary, and all embodiments that have substantially the same structure as the technical configuration and exhibit the same effects within the scope of the technical solution of the present application are included within the technical scope of the present application. In addition, various modifications that those skilled in the art can make to the embodiments without departing from the spirit of the present application, and other forms constructed by combining some of the components of the embodiments, are also included within the scope of the present application. [Explanation of symbols]

[0058] 100 handpieces 43 Second Fixation Plate 10 treatment heads 431 Second Aperture 1 Needle Plate Component 44 Second fastening member 11 Needle 5 Presser block 12 Needle plate body 6 Elastic member 13 Guide member 7 Cases 2 Adapter Plate Components 71 needle hole 21 Adapter plate body 8 Negative pressure tube 22 Connecting member 9 Suction Components 3. First flexible substrate 20 Handle 4 Fixed Components 201 Second Flexible Substrate 41 First Fixation Plate 2011 Adapter 411 First Aperture 2012 First Control Section 42 First fastening member 2013 Second Control Section

Claims

1. A treatment head connected to one side of the handle, a needle plate component on which several needles are provided; an adapter plate component, the needle plate component being movably connected to the adapter plate component, the drive end of the handle driving the needle plate component to move reciprocally relative to the adapter plate component; a first flexible substrate electrically connected to the needle plate component and the adapter plate component, respectively, for controlling high frequency energy output by the handle to sectionally heat some of the needles after passing through the adapter plate component, the first flexible substrate, and the needle plate component in sequence; A treatment head characterized by:

2. the treatment head further includes a fastening component for partially fastening the first flexible substrate to the needle plate component and / or the adapter plate component. The treatment head of claim 1 .

3. the needle plate component includes a needle plate body and a guide member, some of the needles are attached to the needle plate body, the needle plate body is connected to the first flexible substrate, the adapter plate component has a guide hole, one end of the guide member is connected to the needle plate body, and the other end of the guide member is inserted into the guide hole and slidably connected to the adapter plate component; The treatment head of claim 2 .

4. The fixing component includes a first fixing plate and a first fastening member, a first end of the first flexible substrate is located between the first fixing plate and the guide member, a first opening is formed in the first fixing plate, and the first fastening member is inserted into the first opening and connected to the guide member; The treatment head of claim 3 .

5. the adapter plate component 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 substrate, and the fixing component is connected to the connecting member; The treatment head of claim 3 .

6. The fixing component further includes a second fixing plate and a second fastening member, a second end of the first flexible substrate is located between the second fixing plate and the connecting member, a second opening is formed in the second fixing plate, and the second fastening member is inserted into the second opening and connected to the connecting member; The treatment head of claim 5 .

7. the needle plate body, the first flexible substrate, and the adapter plate body are integrally molded; The treatment head of claim 5 .

8. The length of the first flexible substrate is greater than the pitch between the needle plate body and the adapter plate body. The treatment head of claim 5 .

9. The treatment head further includes a pressing block and an elastic member fitted into the guide member and abutting one end of the connecting member, the pressing block being attached to the guide member and abutting the other end of the elastic member. The treatment head of claim 5 .

10. The treatment head further includes a case having an opening in a storage chamber, the bottom of which is provided with several needle holes, the needle plate component, the adapter plate component, and the first flexible substrate are fitted into the storage chamber and connected to the case, and each of the needles extends or retracts through each of the needle holes. The treatment head of claim 1 .

11. The treatment head further includes a negative pressure tube provided on the outer peripheral wall of the case and communicating with the storage chamber, and a suction component having one end connected to the negative pressure tube. The treatment head of claim 10.

12. The case is made of a transparent material. The treatment head of claim 10.

13. A treatment head according to any one of claims 1 to 12, comprising a handle and the handle is removably connected to the treatment head and includes a second flexible substrate; the second flexible substrate is electrically connected to the treatment head such that the handle provides radio frequency energy to the treatment head; A handpiece characterized by:

14. the second flexible substrate includes an integrally molded adapter, a first control section, and a second control section; 14. The handpiece of claim 13.

15. A handpiece comprising the handpiece of any one of claims 13 to 14. A microneedle treatment facility characterized by:

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