Beauty microneedle with self-destruction structure

Abstract

The invention provides a beauty microneedle with a self-destruction structure. The beauty microneedle comprises a shell, a partition plate, a negative pressure cavity, a containing cavity and the like. A first air channel is arranged in the connecting rod at the rear end of the needle base, and a second air channel is arranged in the corresponding needle body. A sealing air channel is formed at the rear end of the first air channel and provided with a sealing ball, and a limiting assembly is arranged between the sealing ball and the sealing air channel and comprises an electric heating ring, a plastic ring and a limiting protrusion. A battery and a circuit board are arranged on the needle seat, and a touch pressure switch on the circuit board is located between the cover body and the circuit board. In the initial state, the cover body presses the switch to disconnect the switch. During use, the cover body is rotated to enable the needle seat to move forwards, the needle body extends out, the touch switch is activated, the circuit board controls the electric heating ring to heat to melt the plastic ring, the sealing ball moves to block the sealing air channel, and the product cannot suck air to form negative pressure to be self-destroyed. By means of the design, the risk of cross infection caused by secondary use of the microneedle is avoided, health and safety of a user are guaranteed, the structure is exquisite, operation is easy and convenient, and high practical value and market prospects are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a cosmetic microneedle with a self-destructive structure. Background Art

[0002] In today's cosmetic medical field, microneedle technology has attracted much attention due to its remarkable effects. Microneedle technology uses tiny microneedles to precisely act on target tissues at different depths, and can be used for facial rejuvenation applications such as skin tightening, scar removal, acne treatment, and axillary hyperhidrosis treatment.

[0003] For example, the microneedle assembly, microneedle treatment head and microneedle treatment device disclosed in the patent with patent authorization announcement number CN 214050199 U. The microneedle assembly includes a shell and a plurality of microneedles. A cavity is formed inside the shell. A partition with a through hole is arranged inside the shell. A sealing film is attached to the surface of the partition. The partition divides the cavity into a negative pressure chamber and a containing chamber. A treatment surface is arranged on the surface of the shell. The treatment surface is provided with a through hole connected to the negative pressure chamber; a negative pressure hole is arranged on the shell, and the negative pressure hole is connected to the negative pressure chamber; the microneedle extends toward the through hole of the treatment surface, and there is a gap between the side wall of the microneedle and the periphery of the through hole on the treatment surface. The microneedle is movably arranged in the cavity. When the treatment is carried out, the microneedle passes through the through hole on the partition, pierces the sealing film and extends out from the through hole on the treatment surface. In this way, the original negative pressure suction process for the entire surface can be converted into a negative pressure suction process through the through hole on the treatment surface. Reference Figure 1 shown.

[0004] However, with the widespread application of microneedle technology, some potential problems have gradually emerged.

[0005] Microneedle products currently on the market are at risk of being reused during use. Microneedles directly contact human skin and may pose serious health risks if reused. On the one hand, microneedles used twice may carry bacteria, viruses and other pathogens from the previous user, increasing the risk of cross-infection and posing a great threat to the health of users. On the other hand, reused microneedles may affect their therapeutic effects and safety due to wear and deformation. For example, the tip of a microneedle may become blunt, resulting in inaccurate insertion depth into the skin.

[0006] In order to solve the problem of secondary use of microneedles, some existing methods mainly prevent reuse by strengthening management and supervision. For example, medical institutions can strengthen the management of microneedle equipment and establish a strict usage record and disinfection system; or manufacturers can set labels on the products to remind users not to reuse. However, these methods all have certain limitations and cannot fundamentally eliminate the risk of secondary use of microneedles. Summary of the invention

[0007] In view of the problems pointed out in the background technology, the present invention proposes a cosmetic microneedle with a self-destructive structure to solve the above technical problems.

[0008] The technical solution of the present invention is achieved in this way: A cosmetic microneedle with a self-destructive structure comprises a shell with openings at both ends, a partition is arranged in the middle of the shell, the front side of the partition is a negative pressure chamber, the rear side of the partition is a receiving chamber, a needle hole connecting the negative pressure chamber and the receiving chamber is arranged on the partition, a needle seat movable along the axial direction of the shell is arranged in the receiving chamber, a needle body is arranged at the front end of the needle seat, a connecting rod is arranged at the rear end of the needle seat, and a cover body is connected to the rear end opening of the shell; the cover body is rotatably connected to the shell in the circumferential direction of the shell; the cover body is fixedly connected to the shell in the axial direction of the shell; a threaded hole threadedly connected to the connecting rod is arranged on the cover body, a first airway is arranged in the connecting rod, a needle body on the needle plate is arranged corresponding to the first airway, and a second airway connected to the first airway is arranged in the needle body corresponding to the first airway duct; the inner diameter of the rear end of the first air duct gradually becomes smaller to form a sealed air duct; a sealing ball is arranged in the first air duct; a limit assembly is arranged between the sealing ball and the sealed air duct, and the limit assembly comprises an annular electric heating ring, an annular plastic ring is arranged on the inner side wall of the electric heating ring, and a protruding limit protrusion is arranged on the inner side wall of the plastic ring, and there are multiple limit protrusions, and the multiple limit protrusions are arranged at intervals in the circumferential direction of the plastic ring; a battery and a circuit board are arranged on the needle seat, and the battery and the electric heating ring are electrically connected to the circuit board respectively, and a touch pressure switch is arranged on the circuit board, and the touch pressure switch is located between the circuit board and the cover body; in the initial state, the cover body is in a state of touching the touch pressure switch, and the touch pressure switch is in a disconnected state at this time.

[0009] The present invention is further configured such that the circuit board is arranged on the rear side of the needle seat.

[0010] The present invention is further configured such that a negative pressure hole communicating with the negative pressure chamber is provided on the side wall of the negative pressure chamber.

[0011] The present invention is further configured such that a sealing ring is provided between the outer wall of the needle seat and the inner wall of the accommodating cavity.

[0012] The present invention is further configured such that a guide portion extending into the negative pressure chamber is provided on the partition, the guide portion is arranged corresponding to the pinhole, and a hole corresponding to the pinhole is provided on the guide portion.

[0013] The present invention is further configured such that a groove for installing a battery is provided on the rear side surface of the needle seat.

[0014] The present invention is further configured such that the diameter of the sealing ball is greater than the minimum diameter of the sealing airway.

[0015] The present invention is further configured such that the circuit board is fixedly connected to the needle seat via screws.

[0016] The present invention is further configured such that the needle seat is fixedly connected to the accommodating cavity in the circumferential direction.

[0017] The present invention is further configured such that a joint is provided at the rear end of the connecting rod.

[0018] By adopting the above technical solution, the beneficial effects of the present invention are as follows: The cosmetic microneedle with a self-destruct structure provided by the present invention ensures that the product cannot be used again after being used once through the self-destruct structure design, thereby avoiding the risk of cross-infection of pathogens such as bacteria and viruses caused by repeated use of microneedles, and greatly protecting the health and safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of the prior art.

[0021] Figure 2 It is a schematic diagram of the structure of the present invention.

[0022] Figure 3 For the present invention Figure 2 Enlarged view of part A in .

[0023] Figure 4 It is a schematic structural diagram of the limiting component of the present invention. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] For reference Figure 1-Figure 4 The present invention is described: Embodiment: A cosmetic microneedle with a self-destructive structure comprises a shell 1 with openings at both ends. The shell 1 is a cylindrical structure as a whole. The shell 1 is a cylindrical structure as a whole. This shape design conforms to the principle of ergonomics and is easy to hold and operate. The design of openings at both ends facilitates the installation and maintenance of internal components. A partition 2 is provided in the middle of the shell 1. The front side of the partition 2 is a negative pressure chamber 3, and the rear side of the partition 2 is a receiving chamber 4. The middle partition 2 divides the shell 1 into two parts, the negative pressure chamber 3 and the receiving chamber 4. This partition design allows components with different functions to have their own independent spaces to avoid mutual interference. The diameter of the receiving chamber 4 is slightly larger than the diameter of the negative pressure chamber 3. The partition 2 is provided with a needle hole 22 connecting the negative pressure chamber 3 and the receiving chamber 4. A needle seat 55 that can move along the axial direction of the shell 1 is provided in the receiving chamber 4. The needle seat 55 is fixedly connected to the receiving chamber 4 in the circumferential direction. The front end of the needle seat 55 is provided with a needle body 6, and the number and position of the needle body 6 are set corresponding to the needle hole 22 to ensure that the needle body 6 can accurately pass through the needle hole 22 to enter the negative pressure chamber 3. The diameter of the needle hole 22 is slightly larger than the diameter of the needle body 6. The rear end of the needle seat 55 is provided with a connecting rod 7, and the rear end opening of the shell 1 is connected with a cover body 8; in the circumferential direction of the shell 1, the cover body 8 is rotatably connected to the shell 1; in the axial direction of the shell 1, the cover body 8 is fixedly connected to the shell 1; the cover body 8 is provided with a threaded hole 9 threadedly connected to the connecting rod 7. The cover body 8 rotates, driving the connecting rod 7 and the needle seat 55 to move axially, so that the needle body 6 moves forward through the needle hole 22 to enter the negative pressure chamber 3 and extends from the front end of the shell 1. The needle body 6 at the front end of the needle seat 5 is used for cosmetic treatment, and its number and layout can be designed according to different treatment needs. The connecting rod 7 at the rear end of the needle seat 5 is threadedly connected to the threaded hole 9 on the cover body 8, and the needle seat 5 and the needle body 6 are driven to move axially by the rotation of the cover body 8, so that the needle body 6 extends from the front end of the shell 1 for treatment. The cover 8 is connected to the rear end opening of the housing 1, and is rotatably connected to the housing 1 in the circumferential direction of the housing 1, and is fixedly connected to the housing 1 in the axial direction of the housing 1. This design ensures that the cover 8 can drive the connecting rod 7 and the needle seat 5 to move when rotating, and ensures that the cover 8 will not accidentally loosen or fall off during the treatment process. The threaded hole 9 on the cover 8 is threadedly connected to the connecting rod 7. By rotating the cover 8, the connecting rod 7 and the needle seat 5 are moved axially by the principle of thread transmission, thereby realizing the function of accurately controlling the extension length of the needle body 6.

[0026] The connecting rod 7 is cylindrical, and a first airway 10 is arranged inside the connecting rod 7. A needle body 6 on the needle plate is arranged corresponding to the first airway 10. The needle body 6 corresponding to the first airway 10 is provided with a second airway 11 connected to the first airway 10. The needle body 6 and the connecting rod 7 cooperate to form an air suction channel. The rear end of the needle body 6 is fixedly connected to the needle seat 55. The second airway 11 runs through the rear end and the middle position of the needle body 6. Only the needle body 6 corresponding to the connecting rod 7 forms the second airway 11, and no airway is arranged in the other needle bodies 6. This differentiated design not only meets the demand for the air suction function, but also avoids interference with other needle bodies 6 during the beauty treatment process, making the product structure more reasonable and efficient. A joint 23 is provided at the rear end of the connecting rod 7. The joint 23 at the rear end of the connecting rod 7 is used to connect with the air suction device to ensure that the air suction channel can be effectively connected with the external equipment to achieve the formation of negative pressure. The connecting rod 7 is a cylindrical structure and has a first airway 10 inside. A second airway 11 is provided in a needle body 6 corresponding to it, and the two are connected to form an air suction channel. This design combines the functions of the specific needle body 6 and the connecting rod 7 to realize the construction of the suction channel, providing a special channel for forming negative pressure without affecting the normal cosmetic treatment functions of other needle bodies 6. The suction channel and the joint 23 are connected to the suction device, and the negative pressure chamber 3 can be pumped into a negative pressure state during use, so that the skin in the treatment area is sucked tightly at the front opening of the shell 1, providing a stable operating environment for the treatment of cosmetic microneedles. The suction channel formed by the specific needle body 6 and the connecting rod 7 helps to ensure the accuracy of the negative pressure effect, so that the skin can fit more evenly on the treatment area under the action of negative pressure, and improve the accuracy of microneedle insertion and the treatment effect. The suction channel is integrated into the connecting rod 7 and the specific needle body 6, reducing external connecting components and making the product structure more simple and compact.

[0027] The inner diameter of the rear end of the first air passage 10 gradually decreases to form a sealing air passage 12. This gradual inner diameter design provides a specific structural basis for the subsequent sealing function. A sealing ball 13 is provided in the first air passage 10, and the sealing ball 13 is made of rubber or silicone. The sealing ball 13 is made of rubber or silicone. Rubber and silicone have good elasticity and sealing properties, and can form an effective seal at an appropriate position to prevent gas from passing through. At the same time, these two materials are relatively soft, not easy to damage the air passage, and have a certain durability.

[0028] The sealing ball 13 can move to the sealed airway under certain circumstances, and use its elasticity and cooperation with the sealed airway to seal the first airway 10. When it is necessary to prevent airflow from passing through the air inhalation channel, the sealing ball 13 can play a key role, ensuring that the product cannot perform an air inhalation operation under certain conditions, thereby achieving self-destruction or other specific functional requirements.

[0029] Since the sealing ball 13 has a certain elasticity and mobility, it can respond dynamically according to different working states and external conditions. For example, when the product is in normal use, the sealing ball 13 is at the front side of the limit assembly and does not affect the normal operation of the air intake channel; when the self-destruct mechanism is triggered, the sealing ball 13 can move to the sealed airway under the action of wind suction to achieve the sealing function.

[0030] A limiting assembly is provided between the sealing ball 13 and the sealing airway 12, and the limiting assembly includes an annular electric heating ring 14, the electric heating ring 14 is fixedly connected to the inner side wall of the first airway 10, an annular plastic ring 15 is provided on the inner side wall of the electric heating ring 14, and a protruding limiting protrusion 16 is provided on the inner side wall of the plastic ring 15, and a plurality of limiting protrusions 16 are provided, and the plurality of limiting protrusions 16 are arranged at intervals in the circumferential direction of the plastic ring 15, and the limiting protrusions 16 can prevent the sealing ball 13 from moving toward the sealing airway 12. The diameter of the sealing ball 13 is greater than the minimum diameter of the sealing airway 12. The limiting assembly is located between the sealing ball 13 and the sealing airway, and is mainly composed of the annular electric heating ring 14, the plastic ring 15, and a plurality of limiting protrusions 16 on the inner side wall of the plastic ring 15. The electric heating ring 14 is fixedly connected to the inner side wall of the first airway 10 to ensure that it is in a stable position during operation. The plastic ring 15 is arranged on the inner side wall of the electric heating ring 14. The combination of the two makes the overall structure of the limit assembly more stable. A plurality of limit protrusions 16 are arranged at intervals around the plastic ring 15 to form a fence-like structure that can effectively prevent the sealing ball 13 from moving toward the sealing airway.

[0031] Only when the limiting assembly fails, the sealing ball 13 is likely to move to the sealing airway under the action of external force to achieve the sealing function.

[0032] The main function of the limiting protrusion 16 is to prevent the sealing ball 13 from moving toward the sealing airway. When the product is not in use or in a specific working state, the limiting protrusion 16 can ensure that the sealing ball 13 remains in a position away from the sealing airway, thereby ensuring the smooth flow of the air inhalation channel, so that the product can perform the air inhalation operation normally, forming negative pressure to achieve functions such as beauty treatment. This limiting function is crucial for the normal use and stable performance of the product. It can prevent the sealing ball 13 from accidentally moving to the sealing airway, avoiding the situation where the product fails or cannot work normally when sealing is not required.

[0033] When the self-destruction function of the product needs to be triggered, the electric heating ring 14 will play a key role. The electric heating ring 14 can melt the plastic ring 15 by heating, so that the limiting protrusion 16 loses its blocking effect on the sealing ball 13. At this time, the sealing ball 13 moves toward the sealed airway under the action of external suction (such as the wind suction of the suction device), forming a blockage of the sealed airway, making it impossible for the product to inhale and form negative pressure, thereby achieving the purpose of self-destruction.

[0034] The design of the limiter assembly enables the product to accurately control the position of the sealing ball 13 when needed to open and close the air intake channel. This precise control is crucial to the performance and function of the product, ensuring that the product can operate normally or achieve specific functional requirements under different working conditions.

[0035] The reliability of the limit is increased by providing a plurality of limit protrusions 16. Even under certain external impact or vibration, the sealing ball 13 is not easy to accidentally move to the sealing airway. At the same time, the size design of the sealing ball 13 and the sealing airway and the coordination of the electric heating ring 14 and the plastic ring 15 further improve the reliability and stability of the product.

[0036] The needle holder 55 is provided with a battery 17 and a circuit board 18, and the battery 17 and the electric heating ring 14 are electrically connected to the circuit board 18 respectively. The circuit board 18 is provided with a touch-pressure switch 19, and the touch-pressure switch 19 is located between the circuit board 18 and the cover 8; in the initial state, the cover 8 is in a state of touching the touch-pressure switch 19, and at this time, the touch-pressure switch 19 is in a disconnected state, and the battery 17 does not supply power to the electric heating ring 14. When the product is used, it is necessary to first rotate the cover 8, the needle holder 55 moves forward, and the needle body 6 extends. At this time, the touch-pressure switch 19 leaves the cover 8, and the cover 8 no longer touches the touch-pressure switch 19. The touch-pressure switch 19 is activated and turned on to send a signal, and the controller on the circuit board 18 controls the electric heating ring 14 to heat up, and the electric heating ring 14 heats up and the plastic ring 15 melts, so that the sealing ball 13 can pass through, and the sealing ball 13 moves toward the sealing airway 12 under the wind suction force, forming a blockage of the sealing airway 12, so that it is impossible to inhale, and it is impossible to form a negative pressure, and the product cannot be used, achieving the purpose of self-destruction. The battery 17 provided on the needle holder 5 provides a power source for the entire self-destruction mechanism. The circuit board 18 serves as a control center, connecting the battery 17 and the electric heating ring 14 to realize the power supply control of the electric heating ring 14. The touch-pressure switch 19 is located between the circuit board 18 and the cover 8, and the switch state is controlled by the position change of the cover 8. In the initial state, the cover 8 touches the touch-pressure switch 19 to put it in the disconnected state, and the battery 17 does not supply power to the electric heating ring 14, ensuring that the self-destruction mechanism will not be accidentally triggered when the product is not in use.

[0037] When the product is used, the cover body 8 is rotated. This action drives the needle seat 5 to move forward, so that the needle body 6 extends. At this time, the touch-pressure switch 19 leaves the cover body 8, and the cover body 8 no longer touches the touch-pressure switch 19. The touch-pressure switch 19 is activated and turns on and sends a signal. After receiving the signal from the touch-pressure switch 19, the controller on the circuit board 18 controls the electric heating ring 14 to generate heat. The heat generated by the electric heating ring 14 causes the plastic ring 15 to melt, and the sealing ball 13, which was originally blocked by the limiting protrusion 16, loses its restriction and moves toward the sealed airway under the action of wind suction (which may come from the suction device). The sealing ball 13 moves to the sealed airway to form a blockage, closing the suction channel, making it impossible to inhale, and thus unable to form negative pressure. In this way, the product cannot be used any more, thus achieving the purpose of self-destruction.

[0038] When the touch-pressure switch 19 is activated and turns on and sends a signal, the controller on the circuit board 18 receives the signal from the touch-pressure switch 19 and controls the electric heating ring 14 to generate heat after a set time, and the set time can be 10 minutes or 30 minutes.

[0039] When the touch switch 19 is activated and turns on to send a signal, the controller on the circuit board 18 does not immediately control the electric heating ring 14 to heat up, but only performs this action after a set time. The set time can be 10 minutes or 30 minutes. This delayed heating design has certain rationality and functionality.

[0040] Giving the user a certain amount of time to operate: Setting a certain delay time allows the user to have enough time to perform treatment operations before triggering the self-destruct mechanism. For example, during the use of cosmetic microneedles, the user may need a certain amount of time to adjust the position of the needle body 6, perform treatments on different parts of the body, etc. Delaying heating can ensure that the user can successfully complete the treatment within this period of time without having to worry about the self-destruct mechanism being triggered too early.

[0041] Preventing false triggering: If the self-destruct mechanism is triggered immediately after the touch switch 19 is activated, unnecessary self-destruction may occur due to some unexpected circumstances (such as misoperation, short-term signal interference, etc.). Setting a certain delay time can reduce the possibility of false triggering and improve product reliability.

[0042] Flexible adaptation to different treatment needs: Different treatment scenarios may require different operation times. By setting an optional delay time (such as 10 minutes or 30 minutes), the product can be more flexible to adapt to different treatment needs. Users can choose the appropriate delay time according to actual conditions to ensure the smooth progress of the treatment process.

[0043] Giving users enough time to operate can improve the user experience. Users can perform treatment more calmly without worrying about the sudden triggering of the self-destruct mechanism. At the same time, the selectable delay time also increases the flexibility of the product and meets the needs of different users.

[0044] The heating working time of the heating electric heating ring 14 can also be set. After the heating electric ring 14 has been heating for 3 minutes or 5 minutes, the controller on the circuit board 18 issues a command to stop supplying power to the electric heating, and the heating electric ring 14 stops heating. By setting the heating working time of the heating electric ring 14, the progress of the self-destruction mechanism can be accurately controlled. Ensure that the self-destruction operation is completed within the appropriate time to avoid incomplete self-destruction or unnecessary damage to other components due to too long or too short heating time. Limiting the heating time of the heating electric ring 14 can prevent overheating and reduce safety risks. If the heating electric ring 14 continues to heat for too long, it may cause dangerous situations such as fire. Setting a reasonable heating time can effectively avoid this risk.

[0045] The self-destruction mechanism effectively prevents the product from being used twice, reduces the risk of cross infection, and ensures the safety and health of users. Through the cooperation of the touch-pressure switch 19 and the controller, the triggering timing of the self-destruction mechanism can be accurately controlled. The self-destruction mechanism will only be triggered during normal use of the product, that is, after the needle body 6 is extended, ensuring the accuracy and reliability of self-destruction. The battery 17, circuit board 18, touch-pressure switch 19 and other components are integrated on the needle seat 5 without taking up additional space, making the product structure more compact and easy to operate and carry.

[0046] A groove for mounting the battery 17 is provided on the rear side of the needle holder 55, and a groove for mounting the battery 17 is provided on the rear side of the needle holder 5. This design enables the battery 17 to be stably mounted on the needle holder 5 and is not easy to loosen or shift. The shape and size of the groove can be customized according to the specifications of the battery 17 to ensure a tight fit between the battery 17 and the needle holder 5. The circuit board 18 is arranged on the rear side of the needle holder 55, and the circuit board 18 is fixedly connected to the needle holder 55 by screws. The circuit board 18 is arranged on the rear side of the needle holder 5 and is fixedly connected to the needle holder 5 by screws. This fixing method is firm and reliable, and can ensure that the circuit board 18 will not loosen or fall off during use.

[0047] A negative pressure hole 20 communicating with the negative pressure chamber 3 is provided on the side wall thereof.

[0048] A sealing ring 21 is provided between the outer wall of the needle holder 55 and the inner wall of the accommodating chamber 4. During the use of the cosmetic microneedle, the skin of the treatment area needs to be sucked tight by negative pressure. The presence of the sealing ring can ensure the sealing between the accommodating chamber 4 and the outside world, prevent air from entering the accommodating chamber 4, and thus maintain the stability of the negative pressure. If there is no sealing ring, air may enter from the gap between the needle holder 5 and the accommodating chamber 4, destroying the negative pressure environment and affecting the treatment effect.

[0049] The partition plate 2 is provided with a guide portion 21 extending into the negative pressure chamber 3, the guide portion 21 is arranged corresponding to the needle hole 22, and the guide portion 21 is provided with a hole corresponding to the needle hole 22. The main function of the guide portion is to ensure that the needle body 6 can accurately pass through the needle hole 22 and enter the negative pressure chamber 3. During the treatment process, when the needle seat 5 moves to extend the needle body 6, the guide portion can make the needle body 6 move along a predetermined path to avoid the needle body 6 from being offset or misplaced, thereby improving the accuracy and effect of the treatment.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cosmetic microneedle with a self-destructive structure, comprising a shell (1) with openings at both ends, a partition (2) being arranged in the middle of the shell (1), the front side of the partition (2) being a negative pressure chamber (3), the rear side of the partition (2) being a receiving chamber (4), a needle hole (22) being arranged on the partition (2) and connecting the negative pressure chamber (3) and the receiving chamber (4), a needle seat (5) being arranged in the receiving chamber (4) and being movable along the axial direction of the shell (1), a needle body (6) being arranged at the front end of the needle seat (5), a connecting rod (7) being arranged at the rear end of the needle seat (5), and a cover body (8) being connected to the rear end opening of the shell (1); the cover body (8) being rotatably connected to the shell (1) in the circumferential direction of the shell (1); the cover body (8) being fixedly connected to the shell (1) in the axial direction of the shell (1); a threaded hole (9) being threadedly connected to the connecting rod (7) being arranged on the cover body (8), characterized in that: The connecting rod (7) is provided with a first air channel (10), a needle body (6) on the needle plate is arranged corresponding to the first air channel (10), and the needle body (6) corresponding to the first air channel (10) is provided with a second air channel (11) connected to the first air channel (10); the inner diameter of the rear end of the first air channel (10) gradually decreases to form a sealed air channel (12); a sealing ball (13) is provided in the first air channel (10); a limiting component is provided between the sealing ball (13) and the sealed air channel (12), and the limiting component includes an annular electric heating ring (14), and an annular plastic ring (15) is provided on the inner side wall of the electric heating ring (14). The inner side wall of the plastic ring (15) is provided with a protruding limiting protrusion (16), and a plurality of limiting protrusions (16) are provided, and the plurality of limiting protrusions (16) are arranged at intervals in the circumferential direction of the plastic ring (15); the needle seat (5) is provided with a battery (17) and a circuit board (18), and the battery (17) and the electric heating ring (14) are respectively electrically connected to the circuit board (18), and the circuit board (18) is provided with a touch pressure switch (19), and the touch pressure switch (19) is located between the circuit board (18) and the cover body (8); in the initial state, the cover body (8) is in a state of touching the touch pressure switch (19), and at this time, the touch pressure switch (19) is in a disconnected state.

2. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: The circuit board (18) is arranged on the rear side of the needle seat (5).

3. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: A negative pressure hole (20) communicating with the negative pressure chamber (3) is provided on the side wall thereof.

4. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: A sealing ring (21) is provided between the outer wall of the needle seat (5) and the inner wall of the accommodating cavity (4).

5. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: The partition plate (2) is provided with a guide portion (21) extending into the negative pressure chamber (3); the guide portion (21) is arranged corresponding to the pinhole (22); and the guide portion (21) is provided with a hole corresponding to the pinhole (22).

6. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: A groove for mounting a battery (17) is provided on the rear side of the needle seat (5).

7. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: The diameter of the sealing ball is greater than the minimum diameter of the sealing air channel (12).

8. The cosmetic microneedle with a self-destructive structure according to claim 2, characterized in that: The circuit board (18) is fixedly connected to the needle seat (5) via screws.

9. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: The needle seat (5) is fixedly connected to the accommodating cavity (4) in the circumferential direction.

10. The cosmetic microneedle with a self-destructive structure according to claim 1, characterized in that: A joint (23) is provided at the rear end of the connecting rod (7).

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