Microneedle treatment device with needle body cooling

Abstract

The utility model relates to the technical field of microneedle treatment, in particular to a microneedle treatment device with a needle body cooling function, which comprises a handle and a treatment head which are detachably connected. The handle comprises a shell, the shell is provided with an installation cavity, a control panel, a power element electrically connected with the control panel and a cooling medium circulation channel are arranged in the installation cavity, and the cooling medium circulation channel extends in the length direction of the shell. The treatment head comprises a shell, the shell is provided with a containing cavity, a micro-needle assembly and a cooling plate are arranged in the containing cavity, a plurality of communicated cooling channels and a plurality of micro-needle passing holes are formed in the cooling plate, and each cooling channel is located between every two adjacent micro-needle passing holes; the power element is provided with an output shaft, the output shaft is connected with the microneedle assembly, and the cooling medium circulation channel is communicated with the cooling channel and used for circularly conveying a cooling medium to the cooling plate.

Description

Technical Field

[0001] The utility model relates to the technical field of microneedle therapy, and particularly relates to a microneedle therapy device with a needle body cooling function. Background Art

[0002] The gold microneedle therapeutic instrument is a common beauty instrument used to destroy fat layer cells. The gold microneedle emits radio waves through a radio frequency therapeutic instrument into the subcutaneous tissue, causing the fat particles in the subcutaneous tissue to move and generate heat energy. It utilizes the principle that collagen fibers in the dermis layer will immediately contract at 55°C - 65°C and the principle of radiofrequency skin tightening, and has two functions of lifting the skin and promoting collagen regeneration. When collagen produces an immediate contraction, it also stimulates the dermis layer to secrete more new collagen fibers to regenerate, thereby supporting the skin scaffold again, increasing the thickness and density of the skin dermis layer, filling in wrinkles, and improving skin relaxation.

[0003] During the treatment process of the gold microneedle, it is necessary to accurately insert the needle into the skin to reach a certain subcutaneous depth to produce a better treatment effect. During the treatment process, the current generated by the needle body will cause the skin temperature to rise, resulting in skin pain and even skin burns. To avoid scalding the surface skin or reducing skin pain during the treatment process, it is usually necessary to cool the surface skin.

[0004] In the invention patent with the application number "202211593311.4" and the name "Control method of microneedle treatment head and microneedle therapeutic instrument", it is disclosed that a refrigerant delivery mechanism is used to deliver refrigerant to the treatment surface, and the refrigerant directly contacts the skin to cool the skin, so as to improve the skin cooling efficiency. However, since the treatment surface is in a negative pressure state close to the skin, it is difficult for the refrigerant to reach the treatment surface smoothly to contact the skin, and the implementation difficulty of the refrigerant delivery mechanism for delivering refrigerant is relatively large. It may also cause the refrigerant to not completely cover the treatment surface, resulting in insufficient local skin cooling or untimely cooling, and there is a risk of obvious local skin pain or local skin burns. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model provides a microneedle therapy device with a needle body cooling function, which realizes the purpose of rapid skin cooling and uniform skin cooling, and solves the problems in the background art.

[0006] A microneedle treatment device with a needle body cooling function according to the present utility model includes: a handle and a treatment head, wherein the handle is detachably connected to the treatment head; the handle includes a housing, the housing is provided with an installation cavity, the installation cavity is provided with a control board, a power element electrically connected to the control board, and a cooling medium circulation channel, and the cooling medium circulation channel extends along the length direction of the housing; the treatment head includes a shell, the shell is provided with a receiving cavity, the receiving cavity is provided with a microneedle assembly and a cooling plate, the cooling plate is provided with a plurality of connected cooling channels and a plurality of microneedle through holes, and each of the cooling channels is located between two adjacent microneedle through holes; the power element is provided with an output shaft, the output shaft is connected to the microneedle assembly, and the cooling medium circulation channel is communicated with the cooling channel for circulating and transporting the cooling medium to the cooling plate.

[0007] As a preferred solution, the cooling medium circulation channel includes a cooling medium delivery channel and a cooling medium return channel. The plurality of cooling channels are arranged in parallel in the cooling plate and are sequentially communicated through a connection channel to form a complete circulation path. The two ends of the circulation path are respectively provided with a cooling medium inlet and a cooling medium outlet. The cooling medium delivery channel is connected to the cooling medium inlet, and the cooling medium return channel is connected to the cooling medium outlet.

[0008] As a preferred solution, the top end of the receiving cavity is provided with an opening, and a cover body is hermetically covered on the opening. The outer side surface of the cover body is provided with a delivery joint and a return joint. The receiving cavity is further provided with a first connecting pipe and a second connecting pipe; the cooling medium delivery channel is connected to the delivery joint, and the cooling medium return channel is connected to the return joint; one end of the first connecting pipe is connected to the cooling medium inlet, the other end of the first connecting pipe is connected to the delivery joint, one end of the second connecting pipe is connected to the cooling medium outlet, and the other end of the second connecting pipe is connected to the return joint.

[0009] As a preferred solution, the end of the shell away from the handle is provided with an end side wall, and an installation opening is provided on the end side wall. The cooling plate is embedded in the installation opening.

[0010] As a preferred solution, a negative pressure groove is further provided around the outer extension of the cooling plate at the end of the shell away from the handle, and the lower end surface of the cooling plate is flush with the end surface of the outer wall of the negative pressure groove.

[0011] As a preferred solution, the microneedle assembly includes a bracket and a microneedle plate. The bracket includes a base and a connecting column. A microneedle array is provided on the microneedle plate, and the microneedle plate is fixed on the base. The microneedle assembly is connected to the output shaft of the power element through the connecting column, and the power element drives the microneedle assembly to be pushed outwards, so that the microneedle array correspondingly passes through the microneedle through-hole to achieve the needle-out action.

[0012] As a preferred solution, several connectors are provided on the end side wall of the housing close to the handle. Hooks are provided on the outer side wall of the connectors, and buckles corresponding to the positions of the hooks are provided on the inner side wall of one end of the outer shell close to the treatment head. The hooks and the buckles are correspondingly clamped; an outwardly protruding button is further provided on the outer side wall of the connector.

[0013] As a preferred solution, an aviation connector is provided at one end of the handle away from the treatment head, and the power supply line of the control board and the end of the cooling medium circulation channel are both received in the aviation connector.

[0014] As a preferred solution, a switch button is further provided on the outer shell, and the position of the switch button corresponds to the position of the switch contact of the control board.

[0015] As a preferred solution, the cooling medium is a liquid cooling medium or a gas cooling medium.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the microneedle treatment device of the present utility model, since a cooling medium circulation channel for conveying a cooling medium is provided in the installation cavity of the handle, a cooling plate is provided in the accommodation cavity of the treatment head, and a plurality of connected cooling channels are provided in the cooling plate. The low-temperature cooling medium can be circulated and supplied to the cooling plate through the cooling medium circulation channel, so that the whole cooling plate can always be at a lower temperature. The cooling plate can cool the microneedle body, so that the needle body is at a lower temperature, which is beneficial to reducing the skin temperature around the needle body and reducing skin pain. Moreover, the cooling plate is attached to the skin surface during the treatment process, and the cooling plate can directly cool the skin surface, improving the skin cooling efficiency and the uniformity of skin cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0019] Figure 1 It is a schematic overall sectional view of the microneedle treatment device with needle body cooling of the present utility model.

[0020] Figure 2 This is a partially enlarged cross-sectional view of the treatment head position of the microneedle treatment device with needle body cooling according to the present utility model.

[0021] In the figure: 1. Outer shell; 10. Installation cavity; 100. Control board; 11. Power element; 111. Output shaft; 12. Cooling medium delivery channel; 13. Cooling medium return channel; 2. Housing; 20. Accommodation cavity; 21. End side wall; 22. First connecting pipe; 23. Second connecting pipe; 24. Negative pressure groove; 3. Cooling plate; 31. Cooling channel; 32. Microneedle through hole; 4. Microneedle assembly; 41. Bracket; 411. Base; 412. Connecting column; 42. Microneedle plate; 43. Microneedle array; 5. Cover body; 51. Delivery joint; 52. Return joint; 6. Aeronautical joint; 7. Switch button. Detailed implementation manners

[0022] The following will disclose multiple implementation manners of the present utility model with the aid of diagrams. For the sake of clear description, many physical details will be described together in the following narration. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some implementation manners of the present utility model, these physical details are unnecessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0023] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the order or sequence, nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0024] Please refer to Figures 1 to 2 As shown, the microneedle treatment device with needle body cooling according to the embodiment of the present utility model includes: a handle and a treatment head, and the handle is detachably connected to the treatment head.

[0025] Among them, the handle includes a housing 1. The housing 1 is provided with an installation cavity 10. Inside the installation cavity 10, there are a control board 100, a power element 11 and a cooling medium circulation channel. The control board 100 is electrically connected to the power element 11 and is used to control the operation of the power element 11 to realize the needle insertion and retraction of the microneedle assembly 4. The cooling medium circulation channel extends along the length direction of the housing 1. In the present utility model, the power element 11 can be a linear motor, a screw motor, an electromagnetic push rod, etc. that can output linear displacement. In this embodiment, a linear motor is preferably used.

[0026] The treatment head includes a housing 2. The housing 2 is provided with a receiving cavity 20. Inside the receiving cavity 20, there is a microneedle assembly 4. The power element 11 is provided with an output shaft 111. The output shaft 111 is connected to the microneedle assembly 4. The power element 11 pushes the microneedle assembly 4 to move through the output shaft 111 to realize needle insertion and retraction.

[0027] Inside the receiving cavity 20, there is also a cooling plate 3. Inside the cooling plate 3, there are a plurality of connected cooling channels 31 and a plurality of microneedle through holes 32. Each cooling channel 31 is located between two adjacent microneedle through holes 32. That is to say, the cooling channels 31 and the microneedle through holes 32 are arranged alternately. However, the cooling channels 31 and the microneedle through holes 32 are separated by a common side wall. The cooling medium circulation channel is communicated with the cooling channel 31 and is used to circulate and transport the cooling medium to the cooling plate 3. The cooling channels 31 and the microneedle through holes 32 are arranged alternately, which can make the coolant circulate evenly in the cooling plate 3. Each microneedle can be fully cooled through the microneedle through holes 32, which is beneficial to reducing the skin temperature around the needle body and reducing skin pain. The cooling medium can be a liquid cooling medium such as cooling water or cooling oil, or a gas cooling medium such as low-temperature nitrogen, hydrogen, helium, etc. stored in a liquid form.

[0028] Moreover, the lower end surface of the cooling plate 2 is attached to the skin during treatment. The cooling plate 2 can directly cool the skin surface, improving the skin cooling efficiency and the uniformity of skin cooling.

[0029] The thickness of the cooling plate 3 can be adaptively adjusted according to the length of the microneedles, ensuring that except for the part of the microneedle body that penetrates the skin, the rest is preferably placed inside the cooling plate 3, ensuring that the microneedle body can be fully cooled and improving the cooling efficiency of the microneedle body.

[0030] The cooling medium circulation channel includes a cooling medium delivery channel 12 and a cooling medium return channel 13. A plurality of cooling channels 31 are arranged in parallel within the cooling plate 3 and are sequentially connected through connection channels to form a complete circulation path. The two ends of the circulation path are respectively provided with a cooling medium inlet and a cooling medium outlet. The cooling medium delivery channel is connected to the cooling medium inlet, and the cooling medium return channel is connected to the cooling medium outlet. The cooling medium enters the cooling plate 3 from the cooling medium delivery channel, flows through the cooling channels 31, and then flows out from the cooling medium return channel. The circulation of the cooling medium within the cooling plate 3 enables the cooling plate 3 to be sufficiently cooled.

[0031] One end of the housing 2 away from the handle is provided with an end side wall 21, and an installation opening is provided on the end side wall 21. The cooling plate 3 is embedded within the installation opening. The cooling plate 3 needs to have a high thermal conductivity coefficient to quickly transfer heat to the cooling medium. While the housing 2 requires a lower thermal conductivity coefficient to prevent heat from being transferred out of the housing 2, which may cause the housing 2 to overheat and bring an unpleasant operation experience to the operator. Embedding the cooling plate 3 within the installation opening can perfectly solve this problem because the cooling plate 3 and the housing 2 can be made of different materials. For example, the cooling plate 2 can be made of metals such as copper, aluminum, or aluminum alloy with a high thermal conductivity coefficient, and the housing 2 can be made of plastic with a lower thermal conductivity coefficient.

[0032] One end of the housing 2 away from the handle is further provided with a negative pressure groove 24 around the outer extension of the cooling plate 2. The lower end face of the cooling plate 2 is flush with the end face of the outer wall of the negative pressure groove 24. The negative pressure groove 24 can be connected to a vacuum source through a negative pressure channel, which can reliably adsorb the treatment head on the skin. The lower end face of the cooling plate 2 being flush with the end face of the outer wall of the negative pressure groove 24 enables the lower end face of the cooling plate 2 to closely adhere to the skin, facilitating the cooling plate 2 to fully contact the skin and achieving a better cooling effect on the skin surface.

[0033] The top end of the accommodation cavity 20 is provided with an opening, and a cover body 5 is hermetically covered on the opening. A delivery joint 51 and a return joint 52 are provided on the outer side surface of the cover body 5. A first connecting pipe 22 and a second connecting pipe 23 are further provided within the accommodation cavity 20. The cooling medium delivery channel 12 is connected to the delivery joint 51, and the cooling medium return channel 13 is connected to the return joint 52. One end of the first connecting pipe 22 is connected to the cooling medium inlet, and the other end of the first connecting pipe 22 is connected to the delivery joint 51. One end of the second connecting pipe 23 is connected to the cooling medium outlet, and the other end of the second connecting pipe 23 is connected to the return joint 52.

[0034] The microneedle assembly 4 includes a bracket 41 and a microneedle plate 42. The bracket 41 includes a base 411 and a connecting column 412. A microneedle array 43 is provided on the microneedle plate 42, and the microneedle plate 42 is fixed on the base 411. The microneedle assembly 4 is connected to the output shaft of the power element 11 through the connecting column 412. The power element 11 drives the microneedle assembly 4 to be pushed outwards, so that the microneedle array 43 correspondingly passes through the microneedle through-hole 32 to realize the needle-out action.

[0035] A plurality of connectors are provided on the end side wall of the housing 2 close to the handle. Hooks (not labeled) are provided on the outer side wall of the connector. Buckles (not labeled) corresponding to the positions of the hooks are provided on the inner side wall of one end of the outer shell close to the treatment head. The hooks and the buckles are correspondingly clamped. An outwardly protruding button (not labeled) is also provided on the outer side wall of the connector. Pressing the button can disengage the hook from the buckle to realize quick disassembly and connection.

[0036] An aviation connector 6 is provided at one end of the handle away from the treatment head. The power cord of the control board 100 and the end of the cooling medium circulation channel are both received in the aviation connector. A switch button 7 is also provided on the outer shell 1, and the position of the switch button 7 corresponds to the position of the switch contact of the control board 100. The operation state of the microneedle treatment device can be turned on or off through the switch button 7.

[0037] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0038] In the microneedle treatment device of the present utility model, since a cooling medium circulation channel for transporting the cooling medium is provided in the installation cavity of the handle, a cooling plate is provided in the accommodation cavity of the treatment head, and a plurality of connected cooling channels are provided in the cooling plate. The low-temperature cooling medium can be circulated and supplied to the cooling plate through the cooling medium circulation channel, so that the entire cooling plate can always be at a lower temperature. The cooling plate can cool the microneedle body, so that the needle body is at a lower temperature, which is beneficial to reducing the skin temperature around the needle body and reducing skin pain. Moreover, the cooling plate is attached to the skin surface during the treatment process, and the cooling plate can directly cool the skin surface, improving the skin cooling efficiency and the uniformity of skin cooling.

[0039] The above are only the embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A microneedle treatment device with needle cooling, characterized in that: include: A handle and a treatment head, wherein the handle and the treatment head are detachably connected; The handle comprises a shell, the shell is provided with a mounting cavity, a control board, a power element electrically connected to the control board and a cooling medium circulation channel are arranged in the mounting cavity, and the cooling medium circulation channel is extended along the length direction of the shell; The treatment head comprises a shell, the shell is provided with a receiving cavity, the receiving cavity is provided with a microneedle assembly and a cooling plate, the cooling plate is provided with a plurality of interconnected cooling channels and a plurality of microneedle passing holes, and each cooling channel is located between two adjacent microneedle passing holes; The power element is provided with an output shaft, the output shaft is connected to the micro-needle assembly, and the cooling medium circulation channel is communicated with the cooling channel for circulating the cooling medium to the cooling plate.

2. The microneedle treatment device according to claim 1, characterized in that: The cooling medium circulation channel includes a cooling medium delivery channel and a cooling medium reflux channel. The multiple cooling channels are arranged in parallel in the cooling plate and are connected in sequence through connecting channels to form a complete circulation channel. A cooling medium inlet and a cooling medium outlet are respectively provided at both ends of the circulation channel. The cooling medium delivery channel is connected to the cooling medium inlet, and the cooling medium reflux channel is connected to the cooling medium outlet.

3. The microneedle treatment device according to claim 2, characterized in that: An opening is provided at the top of the accommodating cavity, and a cover sealed on the opening is provided with a cover body, and a delivery joint and a reflux joint are provided on the outer side of the cover body, and a first connecting pipe and a second connecting pipe are also provided in the accommodating cavity; the cooling medium delivery channel is connected to the delivery joint, and the cooling medium reflux channel is connected to the reflux joint; one end of the first connecting pipe is connected to the cooling medium inlet, and the other end of the first connecting pipe is connected to the delivery joint, one end of the second connecting pipe is connected to the cooling medium outlet, and the other end of the second connecting pipe is connected to the reflux joint.

4. The microneedle treatment device according to claim 1, characterized in that: An end side wall is provided at one end of the shell away from the handle, a mounting opening is provided on the end side wall, and the cooling plate is embedded in the mounting opening.

5. The microneedle treatment device according to claim 1, characterized in that: A negative pressure groove is further provided around the extension of the cooling plate at one end of the shell away from the handle, and the lower end surface of the cooling plate is kept flush with the end surface of the extension wall of the negative pressure groove.

6. The microneedle treatment device according to claim 1, characterized in that: The microneedle assembly includes a bracket and a microneedle plate, the bracket includes a base and a connecting column, the microneedle plate is provided with a microneedle array, and the microneedle plate is fixed on the base; the microneedle assembly is connected to the output shaft of the power element through the connecting column, and the power element drives the microneedle assembly to be pushed outward, so that the microneedle array passes through the microneedle through hole correspondingly, thereby realizing the needle removal action.

7. The microneedle treatment device according to claim 1, characterized in that: A plurality of connectors are provided on the side wall of the shell near the handle, a hook is provided on the outer wall of the connector, and a buckle corresponding to the position of the hook is provided on the inner wall of the shell near one end of the treatment head, and the hook is correspondingly engaged with the buckle; a button protruding outward is also provided on the outer wall of the connector.

8. The microneedle treatment device according to claim 1, characterized in that: An aviation connector is provided at one end of the handle away from the treatment head, and the power line of the control panel and the end of the cooling medium circulation channel are both received in the aviation connector.

9. The microneedle treatment device according to claim 1, characterized in that: The housing is also provided with a switch button, and the position of the switch button corresponds to the position of the switch contact of the control panel.

10. The microneedle treatment device according to claim 1, characterized in that: The cooling medium is a liquid cooling medium or a gas cooling medium.

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