Physiotherapy apparatus and physiotherapy device

By integrating the liquid dispensing unit and microneedle components into the physiotherapy device, the medication can be directly introduced into the skin tissue during microneedle therapy, solving the problem of needing an additional instrument to apply the medication in existing technologies, thus improving operational efficiency and user experience.

CN121534302BActive Publication Date: 2026-07-31SHENZHEN NOEN MEDICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN NOEN MEDICAL EQUIP CO LTD
Filing Date
2025-11-24
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing physiotherapy devices require an additional applicator to apply medication after microneedling therapy, which is cumbersome and negatively impacts the user experience.

Method used

Design a physiotherapy device that integrates a liquid outlet and a microneedle assembly. Control the connection between the liquid outlet channel and the container bottle through a switch to enable the direct introduction of medication into the skin tissue during microneedle therapy.

Benefits of technology

It simplifies the physiotherapy procedure, improves the efficiency of physiotherapy, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a physiotherapy device and apparatus, characterized in that the physiotherapy device includes: a physiotherapy section, a liquid dispensing section, and a switch; the outer surface of the physiotherapy section is provided with a microneedle assembly for contact with the skin; the liquid dispensing section is connected to the physiotherapy section, and the liquid dispensing section has a liquid dispensing channel, the liquid outlet of the liquid dispensing channel facing the microneedle assembly; the switch is connectable to a container bottle, the switch is installed between the liquid dispensing section and the container bottle, and the switch is rotatably connected to the liquid dispensing section so that the switch can switch between a first position and a second position; this application aims to simplify physiotherapy operation, introduce medication into the skin tissue while performing microneedle physiotherapy, improve the efficiency of physiotherapy, and improve the user experience.
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Description

Technical Field

[0001] This application relates to the field of beauty instrument technology, specifically to a physiotherapy instrument and physiotherapy device. Background Technology

[0002] With the popularization of cosmetic physiotherapy, microneedling therapy has a wide range of applications. The principle of microneedling treatment is to create tiny physical damage to the skin tissue by making micro-holes or punctures with microneedles. The damaged skin and soft tissue will then initiate a wound repair mechanism. In related techniques, a physiotherapy device is first used to perform microneedling therapy on the skin, and then skin care products or liquids are applied to the treatment area for the skin to absorb, thereby enhancing the effect of the physiotherapy or treatment. However, the physiotherapy part of common physiotherapy devices only has a microneedle structure. After the microneedling therapy, another instrument is needed to apply the liquid, making the physiotherapy operation cumbersome. Summary of the Invention

[0003] This application provides a physiotherapy instrument and device, which aims to simplify physiotherapy operations, introduce medication into skin tissue during microneedle therapy, improve the efficiency of physiotherapy, and enhance the user experience.

[0004] On one hand, embodiments of this application provide a physiotherapy device, including: a physiotherapy section, wherein the outer surface of the physiotherapy section is provided with a microneedle assembly for contact with the skin;

[0005] A liquid outlet section, connected to the physiotherapy section, having a liquid outlet channel with the outlet facing the microneedle assembly; and

[0006] A switch element is available for connection to a container bottle. The switch element is installed between the liquid outlet and the container bottle. The switch element is rotatably connected to the liquid outlet so that the switch element can switch between a first position and a second position.

[0007] In the first position, the switch connects the liquid outlet channel and the container bottle; in the second position, the switch disconnects the liquid outlet channel from the container bottle.

[0008] In some embodiments, the liquid outlet is provided with a first insertion pipe communicating with the liquid outlet channel on the side opposite to the liquid outlet, and the first insertion pipe has a first notch on its wall.

[0009] The switch is provided with a slot, and the bottom wall of the slot is provided with a second insertion tube and a liquid inlet hole arranged at intervals. The liquid inlet hole is connected to the container, and the liquid outlet channel is connected to the liquid inlet hole through the first notch.

[0010] The first insertion tube is disposed in the slot, the second insertion tube is rotatably disposed in the first insertion tube, and the second insertion tube has a second notch on its tube wall;

[0011] At the first position, the second notch is positioned opposite to the first notch to open the first notch, and the liquid outlet channel, the second insertion tube, the second notch, the first notch and the liquid inlet are sequentially connected;

[0012] At the second position, the second notch is offset from the first notch, the wall of the second insertion tube blocks the first notch, and the liquid outlet channel is isolated from the liquid inlet.

[0013] In some embodiments, the liquid outlet has a liquid outlet tube connected to the liquid outlet channel, the liquid outlet is the opening of the liquid outlet tube, and there is a gap between the liquid outlet tube and the microneedle assembly.

[0014] In some embodiments, the liquid outlet includes a mounting base and a liquid outlet pipe, the liquid outlet pipe is fixed to the mounting base, the liquid outlet channel is disposed inside the mounting base, and the physiotherapy unit includes a sleeve and a mounting shaft, the mounting shaft is fixed to the mounting base, and the sleeve is sleeved on the outer periphery of the mounting shaft;

[0015] The microneedle assembly includes a plurality of microneedles for contact with the skin, the microneedles being disposed on the outer peripheral surface of the sleeve;

[0016] A cooling assembly is mounted on the end of the mounting shaft away from the mounting base. The cooling assembly includes a semiconductor cooling element and a cold storage element. The semiconductor cooling element has a cold end and a hot end disposed opposite each other. The cold end is heat-exchange connected to the cold storage element to cool the cold storage element. The cold storage element has a cooling surface for contact with skin.

[0017] In some embodiments, the cold storage component is made of a non-phase change material, wherein the specific heat capacity of the non-phase change material is greater than or equal to 0.4 kJ / (kg·K).

[0018] In some embodiments, the cold storage component includes a heat exchange container and polyethylene glycol, the polyethylene glycol being stored in the heat exchange container, and the cold compress surface being located on the side of the heat exchange container away from the semiconductor refrigeration component.

[0019] In some embodiments, the mounting shaft has a mounting cavity, and the end of the mounting cavity away from the mounting base has an opening communicating with the outside. The semiconductor cooling element is mounted at the opening to close at least part of the opening. The hot end is located in the mounting cavity to heat the mounting cavity. The cold storage element is mounted at the end of the mounting shaft away from the mounting base, and at least part of the cold storage element is located outside the mounting cavity and is in contact with the cold end.

[0020] In some embodiments, the sleeve is made of a thermally conductive material, and a heat insulation layer is provided between the cold storage component and the sleeve.

[0021] In some embodiments, the sleeve and the microneedle assembly are integrally formed and connected, and both the sleeve and the microneedle assembly are made of thermally conductive material.

[0022] In some embodiments, the mounting shaft is made of heat-insulating material, and the outer peripheral wall of the mounting shaft is provided with ventilation holes, which connect the mounting cavity and the sleeve.

[0023] The semiconductor cooling component blocks the opening, and an air inlet gap is provided between the cold storage component and the mounting shaft, with the air inlet gap communicating with the mounting cavity;

[0024] An air outlet gap is provided between the sleeve and the mounting shaft, connecting the ventilation hole and the outside.

[0025] The mounting cavity is equipped with a fan device, which can draw air from the air inlet gap and deliver air to the ventilation hole.

[0026] In some embodiments, the physiotherapy device further includes a circuit board mounted on the mounting base. The circuit board is located outside the mounting cavity. The mounting base has a wire hole communicating with the mounting cavity. The wire hole is used for a power supply line to pass through. The circuit board is electrically connected to the semiconductor cooling device through the wire.

[0027] On the other hand, embodiments of this application provide a physiotherapy device, including the aforementioned physiotherapy instrument and a container bottle, wherein the container bottle is detachably connected to the switch, the switch being used to control the connection between the liquid outlet channel and the container bottle, and the container bottle being used to hold a medicinal liquid. Beneficial effects

[0028] In this embodiment, the physiotherapy device has a liquid dispensing function and can be used with a container bottle containing medicine. A liquid dispensing channel is provided in the dispensing section, and the outlet of the dispensing channel can export the medicine liquid from the container bottle. A switch is rotatably connected to the dispensing section and located on the side of the dispensing section away from the sleeve component. The container bottle is detachably connected to the switch. When the switch is rotated, it can control the connection and closure between the container bottle and the dispensing channel. With this configuration, when the user is undergoing microneedle therapy, they can rotate the switch to connect the dispensing channel and the container bottle. The medicine liquid in the container bottle can be exported to the microneedle component on the sleeve component. Simultaneously with microneedle therapy, the medicine liquid is introduced into the skin tissue along the microneedle component to complete the medication application. These two steps are combined into one, eliminating the need to find a separate application device for applying the medicine, thus improving the efficiency of the physiotherapy, simplifying the physiotherapy operation, and improving the user experience. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a three-dimensional structural diagram of the physiotherapy device provided in some embodiments of this application;

[0031] Figure 2 This is an exploded view of a physiotherapy device provided in some embodiments of this application;

[0032] Figure 3 This is a cross-sectional view of a physiotherapy device provided in some embodiments of this application;

[0033] Figure 4 These are schematic diagrams of the mounting base, microneedle assembly, and rotating shaft provided in some embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the mounting base and rotating shaft from another angle, provided in some embodiments of this application;

[0035] Figure 6 These are schematic diagrams of the structure of the switching device provided in some embodiments of this application;

[0036] Figure 7 This is an assembly diagram of the switch and mounting base provided in some embodiments of this application;

[0037] Figure 8 This is an assembly diagram of the switch and plug block provided in some embodiments of this application;

[0038] Figure 9yes Figure 3 A magnified view of a section at point A in the middle;

[0039] Figure 10 This is a three-dimensional structural diagram of a physiotherapy device provided in some embodiments of this application.

[0040] Key component symbols: 10. Mounting base; 101. Cavity; 102. First insertion pipe; 103. First notch; 104. Rotating groove; 105. Liquid outlet channel; 106. Dispensing chamber; 107. Insertion block; 108. Second limiting block; 11. Mounting shaft; 111. Mounting cavity; 112. Opening; 113. Ventilation hole; 114. Baffle plate; 115. Protruding ring; 116. Liquid outlet pipe; 117. Elastic protrusion; 12. Air inlet gap; 121. First air inlet section; 122. Air inlet hole; 13. 14. Fan assembly; 15. Circuit board; 16. Wiring hole; 20. Arc-shaped protrusion; 30. Sleeve component; 41. Microneedle assembly; 42. Refrigeration assembly; 43. Semiconductor refrigeration component; 44. Cold end; 45. Hot end; 46. Cold storage component; 47. Cooling surface; 48. Connecting convex shaft; 59. Switch component; 50. Insertion boss; 51. Slot; 52. Second insertion pipe; 53. Liquid inlet hole; 54. Limiting groove; 55. First limiting block; 56. Third limiting block; 57. Second notch; 68. Container bottle. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0044] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0045] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0046] In related technologies, after a user completes microneedling therapy, redness, swelling, itching, or heat may occur on the skin surface. Usually, it is necessary to use a fan or ice pack to apply cold compresses to the skin surface, which is a rather cumbersome operation. Conventional cold compress operations can reduce the user's experience.

[0047] like Figures 1 to 8 As shown in the embodiment of this application, a physiotherapy device is provided, which can be used on a container bottle 60. The physiotherapy device includes a physiotherapy section, a liquid dispensing section, and a switch. The outer surface of the physiotherapy section is provided with a microneedle assembly 30 for contact with the skin. The liquid dispensing section is connected to the physiotherapy section and has a liquid dispensing channel 105, with the liquid outlet of the liquid dispensing channel 105 facing the microneedle assembly 30. The switch 50 can be connected to the container bottle 60 and is installed between the liquid dispensing section and the container bottle 60. The switch 50 is rotatably connected to the liquid dispensing section so that the switch 50 can switch between a first position and a second position. In the first position, the switch 50 connects the liquid dispensing channel 105 and the container bottle 60. In the second position, the switch 50 disconnects the liquid dispensing channel 105 from the container bottle 60.

[0048] In this embodiment, the physiotherapy device has a liquid dispensing function and can be used with a container bottle 60 containing medicine. A liquid dispensing channel 105 is provided in the liquid dispensing section, and the outlet of the liquid dispensing channel 105 can export the medicine liquid in the container bottle 60. A switch 50 is rotatably connected to the liquid dispensing section and is located on the side of the liquid dispensing section away from the sleeve 20. The container bottle 60 is detachably connected to the switch 50. When the switch 50 is rotated, it can control the connection and closure between the container bottle 60 and the liquid dispensing channel 105. With this configuration, when the user is undergoing microneedle physiotherapy, they can rotate the switch 50 to connect the liquid dispensing channel 105 and the container bottle 60. The medicine liquid in the container bottle 60 can be exported to the microneedle component 30 on the sleeve 20. While performing microneedle physiotherapy, the medicine liquid will be introduced into the skin tissue along the microneedle component 30 to complete the medication application. These two steps are combined into one, eliminating the need to find a separate application device for applying the medicine liquid. This improves the efficiency of the physiotherapy, simplifies the physiotherapy operation, and enhances the user experience.

[0049] In some other embodiments, the switch 50 is fixedly connected to the liquid outlet and slidably connected to the container bottle 60. When the switch 50 slides up and down along the axis of the container bottle 60, it can disengage from or block the opening 112 of the container bottle 60, so as to realize the connection and isolation between the liquid outlet channel 105 and the container bottle 60.

[0050] In some embodiments, such as Figures 5 to 8 As shown, the side of the liquid outlet facing away from the liquid outlet is provided with a first insertion tube 102 communicating with the liquid outlet channel 105. The first insertion tube 102 has a first notch 103 on its wall. The switch 50 is provided with a slot 52. The bottom wall of the slot 52 is provided with a second insertion tube 53 and a liquid inlet 54 spaced apart. The liquid inlet 54 communicates with the container bottle 60. The liquid outlet channel 105 communicates with the liquid inlet 54 through the first notch 103. The first insertion tube 102 is disposed in the slot 52, and the second insertion tube 53 is rotatably disposed. In the first insertion tube 102, the second insertion tube 53 has a second notch 58 on its tube wall; in the first position, the second notch 58 is arranged opposite to the first notch 103 to open the first notch 103, and the liquid outlet channel 105, the second insertion tube 53, the second notch 58, the first notch 103 and the liquid inlet 54 are connected in sequence; in the second position, the second notch 58 and the first notch 103 are staggered, the tube wall of the second insertion tube 53 blocks the first notch 103, and the liquid outlet channel 105 is separated from the liquid inlet 54.

[0051] Specifically, from top to bottom, a first insertion tube 102 is provided inside the liquid outlet section. The upper end of the first insertion tube 102 communicates with the liquid outlet channel 105. A first notch 103 is provided on the peripheral wall of the first insertion tube 102. A cylindrical insertion boss 51 protrudes from the switch member 50. The insertion boss 51 is inserted into the lower end of the mounting base 10. The insertion boss 51 is hollowed out to form a slot 52. A second insertion tube 53 and a liquid inlet hole 54 are provided on the bottom wall of the slot 52. The second insertion tube 53 is inserted into the first insertion tube 102. The peripheral wall of the second insertion tube 53... A second notch 58 is provided, the shape and size of which are the same as those of the first notch 103. An inlet hole 54 is connected to the container bottle 60 and is located below the second notch 58. When in the first position, the liquid flows in from the inlet hole 54, passes through the second notch 58 and the first notch 103, and enters the outlet channel 105. When in the second position, the second notch 58 and the first notch 103 are offset, so even if liquid enters from the inlet hole 54, it cannot enter the first insertion tube 102, thus isolating the outlet channel 105 from the inlet hole 54. This design allows for connection between the outlet section and the container bottle 60, and the connection and isolation between the outlet channel 105 and the container bottle 60 can be controlled by rotation. It allows for control of the physiotherapy device for microneedle therapy alone, or for the outlet combined with microneedle therapy.

[0052] In some embodiments, such as Figure 7 and Figure 8 As shown, the switch 50 also has a rotating part, which has a limiting groove 55. A first limiting block 56 protrudes from the limiting groove 55. A plug-in block 107 protrudes from the bottom of the mounting base 10. The plug-in block 107 is inserted into the limiting groove 55. When the rotating part rotates, the first limiting block 56 will abut against the plug-in block 107. When it is in the first position or the second position, the first limiting block 56 abuts against the plug-in block 107 to limit the rotation of the rotating part.

[0053] Specifically, the rotating part is rectangular and has a limiting groove 55 at its upper end. The limiting groove 55 extends in a ring shape along the outer periphery of the slot 52. Two first limiting blocks 56 protrude from the limiting groove 55. A plug-in block 107 protrudes from the bottom wall of the mounting base 10. The plug-in block 107 is inserted into the limiting groove 55. When the switch 50 rotates, the plug-in block 107 can slide within the limiting groove 55. When the switch 50 is in the first position or the second position, the plug-in block 107 abuts against the first limiting blocks 56 located at both ends. This arrangement ensures that the switch 50 will not rotate excessively and can stop precisely in the first or second position. The two first limiting blocks 56 in the limiting groove 55 limit continuous rotation in the same direction. When the user rotates the switch once, the plug-in block 107 and the first limiting block 56 abut once, and the switch 50 switches positions once.

[0054] In some embodiments, such as Figures 1 to 3 As shown, the liquid outlet section has a liquid outlet tube connected to the liquid outlet channel. The liquid outlet is the opening of the liquid outlet tube. Multiple liquid outlet tubes 116 are provided, and multiple liquid outlet tubes 116 are fixed to the liquid outlet section at intervals. There is a gap between the liquid outlet tubes 116 and the microneedle assembly 30.

[0055] Specifically, multiple outlet tubes 116 are evenly spaced along the axial direction of the sleeve 20. These tubes can simultaneously dispense medication into the microneedles on the sleeve 20. This arrangement increases the medication dispensing range, ensuring that all microneedles on the sleeve 20 come into contact with the medication. During microneedle therapy, the medication is introduced into the skin tissue at the insertion of multiple microneedles, further enhancing the therapeutic effect and improving the user experience. Furthermore, multiple dispensing chambers 106 are provided within the outlet section along the axial direction of the first insertion tube 102. The outlet channel 105 connects to these dispensing chambers 106, which correspond one-to-one with the outlet tubes 116. Each dispensing chamber 106 has the same volume, ensuring that each outlet tube 116 can dispense the same amount of medication, resulting in a uniform distribution of the medication on the microneedle assembly 30.

[0056] In some implementations, such as Figures 1 to 3 ,as well as Figure 10 As shown, the liquid outlet section includes a mounting base 10 and a liquid outlet tube 116. A liquid outlet channel 105 is disposed within the mounting base 10, and the liquid outlet tube 116 is fixed to the mounting base 10. Multiple liquid outlet tubes 116 are fixed to the mounting base 10 at intervals. The physiotherapy section includes a sleeve 20 and a mounting shaft 11. The mounting shaft 11 is fixed to the mounting base 10, and the sleeve 20 is fitted onto the outer periphery of the mounting shaft 11. The microneedle assembly 30 includes multiple microneedles for contact with the skin, and the microneedles are disposed on the outer periphery of the sleeve. The main body includes a mounting base 10 and a mounting shaft 11, with one end of the mounting shaft 11 fixedly connected to the mounting base 10. The sleeve 20 is sleeved on the outer periphery of the mounting shaft 11, and the sleeve 20 is rotatable relative to the mounting shaft 11; the microneedle assembly 30 has a plurality of microneedles for contact with the skin, and the microneedle assembly 30 is disposed on the outer peripheral surface of the sleeve 20; the cooling assembly 40 is mounted on the end of the mounting shaft 11 away from the mounting base 10, and the cooling assembly 40 includes a semiconductor cooling element 41 and a cold storage element 42. The semiconductor cooling element 41 has a cold end 411 and a hot end 412 disposed opposite to each other. The cold end 411 is thermally connected to the cold storage element 42 to cool the cold storage element 42. The cold storage element 42 has a cold compress surface 421 for contact with the skin.

[0057] Specifically, the sleeve 20 is fitted onto the mounting shaft 11 and is rotatable relative to the mounting shaft 11. Multiple microneedles for contacting the skin are provided on the outer circumferential surface of the sleeve 20. A cooling component 40 is provided at the end of the mounting shaft 11 away from the mounting base 10. The semiconductor cooling component 41 in the cooling component 40 is used for cooling and transferring the cold energy to the cold storage component 42. After the cold storage component 42 has stored the cold energy, the cooling surface 421 of the cold storage component 42 is applied to the user's skin for cold compress. In this way, the cold storage component 42 can be cooled while the user is undergoing microneedle therapy. After the user finishes the therapy, the cooling surface 421 is placed on the treatment area to cool the skin, reduce swelling, and relieve pain. There is no need to find ice packs or fans for cooling, making the cold compress operation simpler and improving the user experience.

[0058] In some embodiments, the bottom wall of the mounting base 10 is provided with a rotating groove 104, the first insertion tube 102 protrudes from the bottom wall of the rotating groove 104, the peripheral wall of the rotating groove 104 is provided with a second limiting block 108, the insertion boss 51 is inserted into the rotating groove 104, the outer peripheral wall of the insertion boss 51 is provided with a third limiting block 57, when the switch 50 rotates, the second limiting block 108 will abut against the third limiting block 57, when in the first position or the second position, the second limiting block 108 abuts against the third limiting block 57 to limit the rotation of the rotating part.

[0059] Specifically, the mounting base 10 and the switch 50 are connected mainly through the connection of the insertion boss 51 and the rotating groove 104. The outer periphery of the insertion boss 51 is also provided with multiple snap-fit ​​protrusions, and the rotating groove 104 is provided with snap-fit ​​grooves corresponding to the multiple snap-fit ​​protrusions. The multiple snap-fit ​​protrusions are distributed axially at intervals. When the insertion boss 51 is fully inserted into the rotating groove 104, the snap-fit ​​protrusions are limited by the snap-fit ​​grooves. The switch 50 will not disconnect from the mounting base 10 when it is not subjected to axial external force. When the switch 50 rotates, the snap-fit ​​protrusions will slide in the snap-fit ​​grooves. The third limiting block 57 on the insertion boss 51 will abut against the second limiting block 108 in the rotating groove 104, thereby limiting the switch 50 from rotating further relative to the mounting base 10. When the third limiting block 57 abuts against the second limiting block 108, the switch 50 may be in the first position or the second position. This additional setting, with the addition of a limit structure, further restricts the rotation of the switch 50. The multiple limit structures can share the impact force when the switch 50 rotates, making it less likely to be damaged after repeated collisions, thus extending its service life.

[0060] Furthermore, the surface of the switch 50 is marked with the words "ON" and "OFF", and an arrow is provided on the mounting base 10. When the arrow points to "ON", the liquid outlet channel 105 is connected to the container bottle 60 and the switch 50 is in the first position. When the arrow points to "OFF", the liquid outlet channel 105 is isolated from the container bottle 60 and the switch 50 is in the second position.

[0061] In some embodiments, the cold storage component 42 is made of a non-phase change material, the specific heat capacity of which is greater than or equal to 0.4 kJ / (kg·K).

[0062] Specifically, non-phase change materials store energy through their own temperature changes. Their physical and chemical properties generally remain stable throughout the entire operating range, and their performance does not degrade after multiple cycles of heat absorption and release. The cold storage element 42 is made of a material with a specific heat capacity greater than or equal to 0.4 kJ / (kg·K). When the semiconductor cooling element 41 is activated, the cold energy generated at the cold end of the semiconductor cooling element 41 is absorbed by the cold storage element 42. Because the specific heat capacity of the cold storage element 42 is greater than or equal to 0.4 kJ / (kg·K), it can absorb and store a large amount of cold energy for every 1°C decrease in temperature. This allows a considerable and stable cold energy reserve to be established inside the cold storage element 42, preparing for subsequent heat exchange with the skin. Furthermore, because the cold storage element 42 stores a significant amount of cold energy, its temperature does not rise suddenly during heat exchange with the skin. This ensures that the skin surface continuously experiences a stable and uniform low-temperature stimulation throughout the cold compress, reducing the problem of rapid decay of the cooling effect.

[0063] Furthermore, the non-phase change material is selected from at least one of aluminum, stainless steel, aluminum alloy, marble, granite, and ceramics.

[0064] Specifically, the specific heat capacity of these materials is greater than 0.4. The cold storage component 42 can be made of a single material or a mixture of materials. In this embodiment, the cold storage component 42 is made of aluminum alloy because aluminum alloy is easy to process and has good heat storage and thermal conductivity. This ensures that the cold storage component 42 can store a large amount of cold energy to meet the cold compress needs of the current physiotherapy session. It also increases the heat exchange rate of the cold storage component 42 to ensure rapid cooling. Since the cold storage component 42 needs to be in contact with the skin for a long time, its surface can be treated to increase corrosion resistance and ensure long-term use. This design balances thermal conductivity and high specific heat capacity, allowing the cold storage component 42 to quickly absorb cold energy and maintain its temperature, thereby extending its service life and improving the user experience.

[0065] In another embodiment, the cold storage component 42 includes a heat-conducting container and polyethylene glycol, with the polyethylene glycol stored in the heat-conducting container, and the cold compress surface 421 located on the side of the heat-conducting container away from the semiconductor cooling component 41.

[0066] Specifically, the cold storage component 42 can also be made by combining a phase change material and a metal container. Polyethylene glycol is placed in a sealed, heat-conducting container made of a heat-conducting metal material. During the cold storage process, the temperature of the polyethylene glycol drops to its phase change point, and it begins to solidify from a liquid state. During this solidification process, the polyethylene glycol releases a large amount of latent heat of phase change. This heat is continuously transferred to the cold end 411 of the semiconductor cooling component 41 and carried away. During the cooling process, when the cooling pad 421 is placed on the user's skin, heat is transferred from the skin to the polyethylene glycol, at which point it melts from a solid state to a liquid state. During this melting process, the polyethylene glycol absorbs a large amount of latent heat of phase change. After this heat is removed, a continuous cooling sensation is felt.

[0067] With this configuration, when our semiconductor cooling component 41 stops cooling, the cold storage component 42 can still continue to cool, and the temperature recovery rate is slower, thereby improving the cooling effect of the cold storage component 42.

[0068] Furthermore, the material used to prepare the heat-conducting container is selected from at least one of aluminum metal, aluminum alloy, copper metal, and copper alloy.

[0069] Specifically, the heat-conducting container can be made from a single material or from multiple materials. In this embodiment, aluminum alloy is selected as the material for the heat-conducting container. The heat-conducting container is mainly used for heat exchange and storage of polyethylene glycol. Aluminum alloy has good thermal conductivity, which meets the requirements. In addition, aluminum alloy is easy to process and can be easily processed into a container for containing polyethylene glycol. Due to the plasticity of aluminum alloy, the shape of the heat-conducting container can be customized according to the installation structure or installation position of the semiconductor cooling component 41. This setting ensures the thermal conductivity of the heat-conducting container so that the heat-conducting container can quickly exchange heat with polyethylene glycol.

[0070] In some embodiments, such as Figures 1 to 4 As shown, the mounting shaft 11 has a mounting cavity 111. The end of the mounting cavity 111 away from the mounting base 10 has an opening 112 that communicates with the outside. The semiconductor cooling element 41 is installed at the opening 112 to close at least part of the opening 112. The hot end 412 is located in the mounting cavity 111 to heat the mounting cavity 111. The cold storage element 42 is installed at the end of the mounting shaft 11 away from the mounting base 10. The cold storage element 42 is at least partially located outside the mounting cavity 111 and is in close contact with the cold end 411.

[0071] Specifically, the mounting shaft 11 is hollowed out to form a mounting cavity 111. The opening 112 of the mounting cavity 111 is located on the mounting shaft 11 away from the mounting base 10. The cold end 411 of the semiconductor cooling element 41 is located on the side away from the mounting cavity 111, and the hot end 412 is located inside the mounting cavity 111. The cold storage element 42 is also installed at the opening 112. The semiconductor cooling element 41 is installed at the opening 112 and can close at least part of the opening 112, which can reduce the heat loss from the mounting cavity 111 through the opening 112. The distance between the cold storage component 42 and the mounting base 10 can be increased. When the cold storage component 42 comes into contact with the skin, the mounting base 10 is less likely to touch the skin. At least part of the cold storage component 42 is in contact with the cold end 411 of the semiconductor cooling component 41. When the semiconductor cooling component 41 is energized, the hot end can heat the inside of the mounting cavity 111, and the cold end 411 transfers cold energy to the cold storage component 42. With this arrangement, since at least part of the opening 112 is closed by the semiconductor cooling component 41, the exchange of heat and cold energy can be reduced, and the cold energy can be quickly introduced into the cold storage component 42 after it is generated, ensuring that the cold compress effect of the physiotherapy device is better. In some other embodiments, the hot end 412 of the semiconductor cooling element 41 is attached to the end of the mounting shaft 11 away from the mounting base 10, the cold end 411 of the semiconductor cooling element 41 and the cold storage element 42 are located outside the mounting cavity 111, the cold end 411 of the semiconductor cooling element 41 is attached to the cold storage element 42, one end of the cold storage element 42 is snapped into the cold end 411, and the cold storage element 42 is spaced apart from the mounting shaft 11, which can reduce the heat transfer from the mounting shaft 11 to the cold storage element 42. Compared to traditional semiconductor cooling devices 41, where the heat from the hot end 412 is typically released to the outside atmosphere through a heat sink, the cooling capacity of the semiconductor cooling device 41 in this embodiment can cool the cold storage device 42 to achieve the cold compress function of the cold storage device 42. At the same time, the heat from the hot end of the semiconductor cooling device 41 is fully utilized to heat the mounting cavity 111 and the mounting shaft 11. The mounting shaft 11 then heats the sleeve 20 and the microneedle assembly 30 to achieve the hot compress function of the microneedle assembly 30. During microneedle therapy, the skin can be hot-compressed, thereby achieving a synergistic therapeutic effect.

[0072] In some embodiments, the mounting shaft 11 is made of a thermally conductive material, the sleeve 20 is made of a thermally conductive material, and a heat insulation layer is provided between the cold storage component 42 and the sleeve 20.

[0073] Specifically, the hot end 412 of the semiconductor cooling element 41 faces into the mounting cavity 111. During operation, the heat emitted by the hot end 412 can be transferred to the sleeve 20 through the mounting shaft 11. During microneedle therapy, the heat on the sleeve 20 will radiate to the skin, which is beneficial for opening pores and promoting blood circulation. There is at least a certain gap between the cooling element 42 and the sleeve 20. This gap can serve as a heat insulation layer to prevent direct contact between cold and heat. A heat-insulating structure can also be provided at this gap. The heat-insulating structure can be configured as an arc-shaped protrusion 16 protruding from the mounting shaft 11. The arc-shaped protrusion 16 is made of heat-insulating material and extends in a ring shape along the axial direction of the mounting shaft 11. The arc-shaped protrusion 16 and the side of the mounting base 10 can limit the sleeve 20 and prevent the sleeve 20 from moving axially. This setup enhances the effect of microneedle therapy, while also dissipating heat outwards and reducing heat buildup to ensure the normal operation of the semiconductor cooling component 41. It also separates the sleeve component 20 from the cold storage component 42 to ensure the cooling effect of the cold storage component 42.

[0074] In some embodiments, the mounting shaft 11 is made of a thermally conductive material, and the sleeve 20 and the microneedle assembly 30 are integrally formed and connected, with both the sleeve 20 and the microneedle assembly 30 being made of thermally conductive materials.

[0075] Specifically, the semiconductor cooling component 41 generates heat during operation. This heat is transferred to the mounting shaft 11 and then further transferred to the sleeve 20 and microneedles. The heat from the sleeve 20 radiates to the skin surface. During microneedling therapy, the heat from the microneedles penetrates below the skin layer, promoting blood circulation and allowing the skin to recover better after the therapy. This design enhances the effectiveness of microneedling therapy and further dissipates heat from the mounting cavity 111, improving the heating efficiency of the hot end 412 on the mounting shaft 11, sleeve 20, and microneedle assembly 30, thus ensuring the stable operation of the semiconductor cooling component 41. This embodiment can be combined with the above embodiment, with a heat insulation layer between the cold storage component 42 and the sleeve 20. This heat insulation layer isolates heat from the sleeve 20 and microneedle assembly 30, further ensuring that the cold energy on the cold storage component 42 does not come into contact with heat, thereby ensuring a better cooling effect.

[0076] In some embodiments, such as Figure 2 , Figure 3 and Figure 5 As shown, the mounting shaft 11 is made of heat-insulating material, and the outer peripheral wall of the mounting shaft 11 is provided with ventilation holes 113, which connect the mounting cavity 111 and the sleeve 20.

[0077] Specifically, when the thermoelectric cooler 41 is working, the mounting shaft 11 does not easily absorb heat, and the heat in the mounting cavity 111 is not easily conducted to the cold storage component 42 through the mounting shaft 11, thus improving the cooling effect of the thermoelectric cooler 41 on the cold storage component 42. Simultaneously, the ventilation holes 113 allow heat generated by the hot end 412 to be guided from the ventilation holes 113 to the inner peripheral wall of the sleeve 20, enabling the sleeve 20 to absorb heat. Multiple ventilation holes 113 are provided in both the axial and circumferential directions of the mounting shaft 11. The ventilation holes 113 on the same axis are spaced apart from each other, and the ventilation holes 113 in the circumferential direction are also spaced apart. This arrangement provides the mounting shaft 11 with multiple ventilation holes 113 for heat dissipation, enabling faster heat dissipation to the sleeve 20 and reducing severe heat accumulation in the mounting cavity 111. In other embodiments, the mounting shaft 11 is made of a thermally conductive material, and a thermally conductive layer is sandwiched between the sleeve 20 and the mounting shaft 11.

[0078] In some embodiments, such as Figure 3 , Figure 4 and Figure 9 As shown, the semiconductor cooling component 41 seals the opening 112, and the cold storage component 42 is provided with an air inlet gap 12 between itself and the mounting shaft 11. The air inlet gap 12 is connected to the mounting cavity 111. The sleeve component 20 is provided with an air outlet gap between itself and the mounting shaft 11, which connects to the ventilation hole 113 and the outside. The mounting cavity 111 is provided with a fan assembly 13, which can draw air from the air inlet gap 12 and deliver air to the ventilation hole 113.

[0079] Specifically, the thermoelectric cooler 41 can completely seal the opening 112. A heat-insulating adhesive is provided between the opening 112 and the thermoelectric cooler 41 for fixing, so as to fix the thermoelectric cooler 41 and insulate the inside and outside of the mounting cavity 111. An air inlet gap 12 communicating with the mounting cavity 111 is provided between the cold storage component 42 and the mounting shaft 11. A fan assembly 13 is provided in the mounting cavity 111. The fan assembly 13 is used to draw air from the air inlet gap 12 and exhaust it to the ventilation hole 113. During the air drawing process, the heat generated by the hot end 412 can be discharged to the outside of the ventilation hole 113. With this configuration, the fan assembly 13 can provide airflow, accelerate heat transfer, improve the efficiency of heat conduction, reduce heat accumulation in the mounting cavity 111, and ensure the normal operation of the thermoelectric cooler 41.

[0080] In some other embodiments, the semiconductor cooling element 41 blocks the opening 112, and at least one ventilation hole 113 is provided on each of the opposite sides of the mounting shaft 11. The fan assembly 13 is mounted on the mounting base 10. The fan assembly 13 blows air into the mounting cavity 111 through the ventilation hole 113 on one side. After the airflow enters the mounting cavity 111, it will carry the heat out through the ventilation hole 113 on the other side.

[0081] Furthermore, the fan assembly 13 can be configured as an exhaust fan or a piezoelectric ceramic fan. When using an exhaust fan, the exhaust fan is installed in the mounting cavity 111 at the end away from the semiconductor cooler 41. When powered on, the exhaust fan draws air from the outside to the inside, forming a negative pressure in the mounting cavity 111, and then the airflow is discharged through the ventilation hole 113. When using a piezoelectric ceramic fan, the piezoelectric ceramic fan is installed close to the semiconductor cooler 41. Air is also drawn in from the air inlet gap 12 and then blown towards the inside of the mounting cavity 111. The hot air will bounce back in the mounting cavity 111 and finally be blown out from the ventilation hole 113.

[0082] like Figure 9 As shown, in some embodiments, the air inlet gap 12 includes a first air inlet section 121 and a second air inlet section that are connected. The first air inlet section 121 is located at the interval between the ends of the cold storage component 42 and the sleeve component 20. The second air inlet section is an air inlet hole 122 located at the end of the mounting shaft 11. The air inlet hole 122 connects the mounting cavity 111 and the first air inlet section 121.

[0083] Specifically, the first air inlet section 121 is located between the end face of the cold storage component 42 and the end face of the sleeve component 20. The first air inlet section 121 extends radially along the mounting shaft 11. At the opening 112 of the mounting cavity 111, a protruding ring 115 is provided on the inner peripheral wall of the mounting cavity 111. A baffle plate 114 protrudes from the protruding ring 115 toward the axis of the mounting cavity 111. The baffle plate 114 is annular, and the semiconductor cooling component 41 is fixed to the baffle plate 114. The second air inlet section is an air inlet hole 122 that penetrates the protruding ring 115. The air inlet hole 122 extends axially along the mounting shaft 11. There can be multiple air inlets 122. The mounting shaft 11 is circumferentially spaced, and the air inlet 122 connects the mounting cavity 111 and the first air inlet section 121, which is connected to the outside. The axis of the air inlet 122 forms an angle with the axis of the mounting shaft 11, which is greater than or equal to 0 degrees and less than 90 degrees. Specifically, the axis of the air inlet 122 is parallel to the axis of the mounting shaft 11 and extends in the same direction, i.e., the angle is 0 degrees. With this arrangement, when the fan assembly 13 is drawing air, the airflow will pass through the first air inlet section 121 and the air inlet 122 before entering the mounting cavity 111. There is a gap between the cold storage component 42 and the sleeve component 20 to ensure that direct heat exchange does not occur between them. This arrangement enables air intake into the mounting cavity 111.

[0084] like Figure 3 As shown, in some embodiments, the projections of the cold storage component 42 and the sleeve component 20 on the central axis direction of the mounting shaft 11 overlap, the end of the cold storage component 42 can limit the sleeve component 20, and can prevent the sleeve component 20 from detaching from the mounting shaft 11. The cold storage component 42 and the mounting shaft 11 are detachably connected.

[0085] In a preferred embodiment, the portion of the cooling storage component 42 located outside the mounting shaft can be a disc-shaped structure. The outer diameter of the disc-shaped structure is larger than the outer diameter of the sleeve component 20. That is, the height of the cooling storage component 42 in the radial direction of the mounting shaft 11 is slightly higher than the height of the sleeve component 20. Furthermore, the outer peripheral wall of the disc-shaped structure of the cooling storage component 42 will not protrude outward from the microneedles on the microneedle assembly 30 in the radial direction of the mounting shaft 11. During the use of the physiotherapy device, when the microneedle assembly contacts the skin, the outer peripheral wall of the cooling storage component 42 is less likely to interfere with the user's skin, and the cooling storage component 42 is also less likely to contact the sleeve component 20. When the sleeve component 20 undergoes axial displacement, the end of the cooling storage component 42 can limit the sleeve component 20, preventing it from detaching from the mounting shaft 11. A connecting convex shaft 422 is provided on the side of the cooling storage component 42 facing the mounting shaft 11. The connecting convex shaft 422... As part of the cold storage component 42, the radius of the connecting cam 422 is smaller than the radius of the mounting shaft 11. The connecting cam 422 is detachably inserted into the opening 112 of the mounting cavity 111, and the end of the connecting cam 422 abuts against the cold end 411. The connection method between the connecting cam 422 and the mounting shaft 11 can be an interference fit or a threaded connection. In this embodiment, the connecting cam 422 is connected to the mounting shaft 11 in the form of an interference fit. The opening 112 of the mounting cavity 111 is provided with a plurality of elastic protrusions 117. The elastic protrusions 117 extend along the axis of the mounting shaft 11, and the plurality of elastic protrusions 117 are evenly spaced circumferentially. The connecting cam 422 is interference fit into the opening 112. Alternatively, the outer peripheral wall of the connecting cam 422 is provided with an external thread, and the opening 112 of the mounting cavity 111 is a threaded hole. The connecting cam 422 is screwed into the opening 112.

[0086] like Figure 2 As shown, in some embodiments, the microneedle assembly 30 is detachably connected to the sleeve 20.

[0087] Specifically, the microneedle assembly 30 also includes a fixing sleeve, which is cylindrical. Multiple microneedles are integrally formed with the fixing sleeve, and the multiple microneedles are spaced apart on the outer peripheral wall of the fixing sleeve. The fixing sleeve and the sleeve component 20 are interference-fitted, and the fixing sleeve can be fixedly fitted on the outer peripheral wall of the sleeve component 20. In this embodiment, the microneedle assembly 30 and the sleeve component 20 are integrally formed, and the microneedle assembly 30 cannot be disassembled and replaced. After completing one microneedle therapy session, the entire sleeve component 20 needs to be disassembled and replaced. When replacing the sleeve component 20, the cooling storage component 42 needs to be removed from the mounting shaft 11 first, and then the sleeve component 20 needs to be moved along the axial direction of the mounting shaft 11 and removed from the mounting shaft 11 for replacement. Finally, the cooling storage component 42 is installed back onto the mounting shaft 11. When the therapy device is not needed, the sleeve component 20 can be removed to avoid soiling and damaging the microneedle assembly 30. In some other embodiments, the microneedle assembly 30 is a microneedle patch. The length and width of the microneedle patch are determined according to the circumference and width of the sleeve 20. The side of the microneedle patch without microneedles is adhesive. The microneedle patch is pasted on the outer peripheral wall of the sleeve 20. When it is finished, the microneedle patch is peeled off from the surface of the sleeve 20 for replacement.

[0088] like Figure 3 As shown, in some embodiments, the physiotherapy device also includes a circuit board 14, which is mounted on the mounting base 10. The circuit board 14 is located outside the mounting cavity 111, which can reduce the heat transfer from the mounting cavity 111 to the circuit board 14. The mounting base 10 is provided with a wire hole 15 communicating with the mounting cavity 111. The wire hole 15 is used for the power supply line to pass through. The circuit board 14 is electrically connected to the semiconductor cooling element 41 through the wire.

[0089] Specifically, the mounting base 10 is provided with a cavity 101 for mounting the circuit board 14. The cavity 101 is located on the side of the mounting base 10 connected to the mounting shaft 11. The cavity 101 is also provided with a wire hole 15, which is used to connect the mounting cavity 111 and the cavity 101 to ensure that the components in the mounting cavity 111 can be connected to the circuit board 14 in the cavity 101 through wires.

[0090] In some other embodiments, the circuit board 14 is made entirely of a high-temperature resistant material, the circuit board 14 is installed in the mounting cavity 111, and the circuit board 14 is spaced apart from the fan assembly 13.

[0091] On the other hand, such as Figure 10 As shown, this application embodiment provides a physiotherapy device, including the aforementioned physiotherapy instrument and a container bottle 60. The container bottle 60 is detachably connected to a switch 50, which is used to control the connection between the liquid outlet channel 105 and the container bottle 60. The container bottle 60 is used to hold the medicinal liquid.

[0092] Specifically, the switch 50 has a threaded hole at its bottom, and the opening of the container bottle 60 is screwed into the threaded hole. A sealing ring is provided at the connection between the container bottle 60 and the switch 50 to ensure a sealed connection between the container bottle 60 and the switch 50. The sealing ring also increases the friction between the two, making the connection between the container bottle 60 and the switch 50 tighter. This design enables the connection between the container bottle 60 and the mounting base 10. The connection and isolation between the liquid outlet channel 105 and the container bottle 60 can be controlled by rotating the switch 50. When the switch 50 rotates, the container bottle 60 will rotate with the switch 50. The liquid medicine contained in the container bottle 60 can be one of the liquids used for skin care, maintenance or treatment.

[0093] The physiotherapy instrument and physiotherapy device provided in the embodiments of this application have been described in detail above. Specific examples have been used in this article to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A physiotherapy apparatus, characterised in that, include: The physiotherapy unit has microneedle components on its outer surface for contact with the skin; The liquid outlet is connected to the physiotherapy unit, and the liquid outlet has a liquid outlet channel with the liquid outlet facing the microneedle assembly. as well as A switch element is available for connection to a container bottle. The switch element is installed between the liquid outlet and the container bottle. The switch element is rotatably connected to the liquid outlet so that the switch element can switch between a first position and a second position. In the first position, the switch connects the liquid outlet channel and the container bottle; in the second position, the switch disconnects the liquid outlet channel from the container bottle. The liquid outlet section includes a mounting base and a liquid outlet pipe. The liquid outlet pipe is fixed to the mounting base, and the liquid outlet channel is located inside the mounting base. The physiotherapy section includes a sleeve and a mounting shaft. The mounting shaft is fixed to the mounting base, and the sleeve is sleeved around the outer periphery of the mounting shaft. The microneedle assembly includes a plurality of microneedles for contact with the skin, the microneedles being disposed on the outer peripheral surface of the sleeve; A cooling assembly is mounted on the end of the mounting shaft away from the mounting base. The cooling assembly includes a semiconductor cooling element and a cold storage element. The semiconductor cooling element has a cold end and a hot end disposed opposite to each other. The cold end is heat-exchange connected to the cold storage element to cool the cold storage element. The cold storage element has a cold compress surface for contact with skin. The mounting shaft has a mounting cavity, and the end of the mounting cavity away from the mounting base has an opening that communicates with the outside. The semiconductor cooling element is mounted at the opening to close at least part of the opening. The hot end is located in the mounting cavity to heat the mounting cavity. The cold storage element is mounted at the end of the mounting shaft away from the mounting base, and at least part of the cold storage element is located outside the mounting cavity and is in contact with the cold end.

2. The physiotherapy apparatus of claim 1, wherein, The liquid outlet is provided with a first insertion pipe on the side opposite to the liquid outlet, which communicates with the liquid outlet channel, and the first insertion pipe has a first notch on its wall. The switch is provided with a slot, and the bottom wall of the slot is provided with a second insertion tube and a liquid inlet hole arranged at intervals. The liquid inlet hole communicates with the container bottle, and the liquid outlet channel communicates with the liquid inlet hole through the first notch. The first insertion tube is disposed in the slot, the second insertion tube is rotatably disposed in the first insertion tube, and the second insertion tube has a second notch on its tube wall; At the first position, the second notch is positioned opposite to the first notch to open the first notch, and the liquid outlet channel, the second insertion tube, the second notch, the first notch and the liquid inlet are sequentially connected; At the second position, the second notch is offset from the first notch, the wall of the second insertion tube blocks the first notch, and the liquid outlet channel is isolated from the liquid inlet.

3. The physiotherapy device as described in claim 1, characterized in that, The liquid outlet tube is connected to the liquid outlet channel, the liquid outlet is the opening of the liquid outlet tube, and there is a gap between the liquid outlet tube and the microneedle assembly.

4. The physiotherapy device as described in claim 1, characterized in that, The cold storage component is made of a non-phase change material, and the specific heat capacity of the non-phase change material is greater than or equal to 0.4 kJ / (kg·K); or The cold storage component includes a heat exchange container and polyethylene glycol, wherein the polyethylene glycol is stored in the heat exchange container, and the cold compress surface is located on the side of the heat exchange container away from the semiconductor refrigeration component.

5. The physiotherapy device as described in claim 1, characterized in that, The sleeve is made of a thermally conductive material, and a heat insulation layer is provided between the cold storage component and the sleeve; and / or The sleeve and the microneedle assembly are integrally formed and connected, and both the sleeve and the microneedle assembly are made of thermally conductive material.

6. The physiotherapy apparatus of claim 1, wherein, The mounting shaft is made of heat-insulating material, and ventilation holes are provided on the outer peripheral wall of the mounting shaft, which connect the mounting cavity and the sleeve. The semiconductor cooling component blocks the opening, and an air inlet gap is provided between the cold storage component and the mounting shaft, with the air inlet gap communicating with the mounting cavity; An air outlet gap is provided between the sleeve and the mounting shaft, connecting the ventilation hole and the outside. The mounting cavity is equipped with a fan device, which can draw air from the air inlet gap and deliver air to the ventilation hole.

7. The physiotherapy device as described in claim 1, characterized in that, The physiotherapy device also includes a circuit board, which is mounted on the mounting base and located outside the mounting cavity. The mounting base is provided with a wire hole communicating with the mounting cavity. The wire hole is used for power supply wires to pass through. The circuit board is electrically connected to the semiconductor cooling device through the wire.

8. A physiotherapy device, characterised in that, The device includes a physiotherapy instrument and a container bottle as described in any one of claims 1 to 7, wherein the container bottle is detachably connected to the switch, the switch being used to control the communication between the liquid outlet channel and the container bottle, and the container bottle being used to hold a medicinal liquid.