A microneedle treatment device

Abstract

The application relates to a microneedle treatment device and relates to the technical field of medical apparatuses. The device comprises a main machine and a microneedle treatment piece, the main machine and the microneedle treatment piece are connected at one end, the main machine comprises a main machine shell, a negative pressure pump for generating negative pressure is installed in the main machine shell, the microneedle treatment piece comprises a microneedle treatment needle head and a microneedle treatment rod, the microneedle treatment needle head is installed at one end of the microneedle treatment rod, the microneedle treatment needle head comprises a microneedle treatment shell and treatment microneedles, a containing cavity is formed in the microneedle treatment shell, a fixed base is arranged in the containing cavity, the treatment microneedles are arranged on the fixed base, a first communicating hole is formed in the top end of the microneedle treatment shell, the treatment microneedles are exposed from the first communicating hole, a negative pressure fence is arranged around the top end of the microneedle treatment shell, and the side wall of the negative pressure fence is connected with the negative pressure pump through a negative pressure pipeline. The problem that the microneedle treatment needle head cannot be well attached to the relaxed skin is solved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a microneedle therapy device. Background Technology

[0002] Microneedling is a minimally invasive radiofrequency fractional technology that uses tiny microneedles to precisely deliver radiofrequency energy to target tissues at different depths. This allows microneedling devices to be used for facial rejuvenation applications such as skin tightening and scar removal.

[0003] However, for older patients, when the microneedle needles are applied to their face, the needles may not fit well due to the patient's age and loose skin, which may affect the treatment effect.

[0004] Regarding the aforementioned technologies, there is a problem that microneedle treatment needles cannot fit well against loose skin. Summary of the Invention

[0005] To address the issue that microneedle needles cannot properly adhere to loose skin, this application provides a microneedle treatment device.

[0006] The microneedle therapy device provided in this application adopts the following technical solution: A microneedle therapy device includes a main unit and a microneedle therapy component. The main unit and the microneedle therapy component are connected at one end. The main unit includes a main unit housing, and a negative pressure pump for generating negative pressure is installed inside the main unit housing. The microneedle therapy component includes a microneedle therapy needle and a microneedle therapy rod. The microneedle therapy needle is installed at one end of the microneedle therapy rod. The microneedle therapy needle includes a microneedle therapy shell and a therapy microneedle. A receiving cavity is formed inside the microneedle therapy shell, and a fixed base is provided in the receiving cavity. The therapy microneedle is disposed on the fixed base. A first communicating hole is opened at the top of the microneedle therapy shell, and the therapy microneedle protrudes from the first communicating hole. A negative pressure fence is provided around the top of the microneedle therapy shell, and the side wall of the negative pressure fence is connected to the negative pressure pump through a negative pressure pipe.

[0007] By adopting the above technical solution, the negative pressure fence on the microneedle treatment needle head of the microneedle treatment device is first aligned with the patient's affected area. Then, the negative pressure pump is activated to extract gas from the negative pressure fence through the negative pressure pipeline, so that negative pressure is formed inside the negative pressure fence. The loose skin in the area where the patient needs treatment is attracted by the negative pressure fence. Then, the treatment microneedle is inserted into the patient's skin for treatment, which alleviates the problem that the microneedle treatment needle head cannot fit the loose skin well.

[0008] Optionally, the negative pressure fence sidewall extends outward with an air extraction port, and the tail end of the microneedle treatment rod is provided with a negative pressure port for communicating with the negative pressure pipeline. The negative pressure port is connected to a connecting port for communicating with the air extraction port, and the connecting port is connected to the air extraction port.

[0009] By adopting the above technical solution, since the negative pressure fence is located at the top of the microneedle treatment shell that needs to come into contact with the patient, if the negative pressure pipe is directly connected to the negative pressure fence, the treatment may be affected because the negative pressure pipe is too close to the patient's affected area. Therefore, the negative pressure pipe is connected to the negative pressure port, and the connecting port is connected to the air extraction port, so that the negative pressure pipe is located at the tail end of the microneedle treatment device, effectively avoiding the direct connection between the negative pressure pipe and the negative pressure fence.

[0010] Optionally, the bottom end of the microneedle treatment rod is provided with a protective sleeve for protecting the connection between the negative pressure pipe and the negative pressure port, and the negative pressure pipe passes through the protective sleeve and communicates with the negative pressure port.

[0011] By adopting the above technical solution, since microneedle treatment devices are needed to treat different lesions of patients, it is necessary to constantly change the position of the microneedle treatment devices. Long-term use of microneedle treatment devices may cause wear or even damage at the connection between the negative pressure pipe and the negative pressure port at the tail end of the microneedle treatment device, which may affect the normal generation of negative pressure. Therefore, a protective sleeve needs to be installed at the connection between the negative pressure pipe and the negative pressure port to effectively prevent such occurrences.

[0012] Optionally, the fixed base includes a fixed base plate, a lifting base plate, a lifting platform, and a first circuit board. The lifting base plate is fixed on the fixed base and fixedly connected to the microneedle treatment shell. The lifting base plate is slidably connected to the lifting platform. The first circuit board is mounted on the lifting platform. One end of the treatment microneedle is mounted on the first circuit board. The microneedle treatment shell is connected to the microneedle treatment rod. A stepper motor is provided inside the microneedle treatment rod. The output end of the stepper motor moves toward or away from the microneedle treatment needle. The fixed base plate and the lifting base plate have a through second connecting hole.

[0013] By adopting the above technical solution, when using the microneedle treatment device to treat the patient's skin, the stepper motor moves towards the direction of the microneedle treatment needle, the output end of the stepper motor abuts against the bottom surface of the lifting platform, and then the stepper motor continues to move, the lifting platform is driven by the stepper motor to move, the treatment microneedle moves towards the top of the microneedle treatment shell, and finally protrudes from the first connecting hole at the top of the microneedle treatment shell to pierce the patient's skin for treatment.

[0014] Optionally, the lifting platform is slidably connected to the lifting base plate via a guide rod, and the treatment microneedle is provided with a limiting member for limiting the position of the treatment microneedle, and the end of the guide rod is fixedly connected to the limiting member.

[0015] By adopting the above technical solution, since the treatment microneedle is relatively long, the limiting component placed around the treatment microneedle can limit the treatment microneedle, effectively preventing the treatment microneedle from shaking during its movement toward the first connecting hole because only one end of the treatment microneedle is mounted on the first circuit board, thus preventing it from accurately passing through the first connecting hole to complete the treatment of the patient.

[0016] Optionally, a support spring is sleeved on the outer periphery of the guide rod, one end of the support spring is fixedly connected to the lifting platform, and the other end of the support spring abuts against the limiting member.

[0017] By adopting the above technical solution, during the process of the treatment microneedle being exposed from the first connecting hole at the top of the microneedle treatment shell and inserted into the patient's skin for treatment under the drive of the stepper motor, the lifting platform moves toward the limiting component, thereby compressing the support spring. This gives the support spring elastic potential energy to move the lifting platform away from the limiting component. Therefore, when the treatment microneedle needs to return to the microneedle treatment shell after completing the treatment, the stepper motor moves away from the microneedle treatment shell, the support spring releases elastic potential energy, and the lifting platform can move away from the limiting component under the action of gravity and the elastic potential energy of the support spring, so that the treatment microneedle returns to the microneedle treatment shell.

[0018] Optionally, the end of the stepper motor that abuts against the bottom surface of the lifting platform is provided with an attractive magnetic pole, and the end of the lifting platform that abuts against the stepper motor is provided with an attractive element for being attracted by the attractive magnetic pole.

[0019] By adopting the above technical solution, an attractive magnetic pole is provided at the end of the stepper motor that abuts against the bottom surface of the lifting platform, and an attractive element is provided at the end of the lifting platform that abuts against the stepper motor. When the treatment microneedle needs to return to the microneedle treatment shell after treatment, the stepper motor moves away from the microneedle treatment shell, the support spring releases elastic potential energy, and during the process of the stepper motor moving away from the microneedle treatment shell, the mutual attraction between the attractive magnetic pole and the attractive element can assist the support spring in moving the lifting platform away from the limiting element, so that the treatment microneedle returns to the microneedle treatment shell.

[0020] Optionally, the end of the microneedle treatment rod where it is installed with the microneedle treatment needle is provided with a cooling plate for cooling the microneedle treatment needle.

[0021] By adopting the above technical solution, a cooling pad is provided at one end of the microneedle treatment rod and the microneedle treatment needle. Treatment microneedles rely on fractional radiofrequency for therapy, which may cause epidermal damage or burns during the treatment process. Therefore, timely cooling is necessary. Because a cooling pad is provided at one end of the microneedle treatment rod and the microneedle treatment needle, the cold air generated by the cooling pad can be conducted into the treatment microneedles inside the microneedle treatment needle during operation. This allows for timely cooling of the treatment microneedles during treatment, effectively preventing epidermal damage or burns.

[0022] Optionally, the cooling element includes a cooling surface and a heating surface, with the cooling surface facing the microneedle treatment needle and the heating surface facing the microneedle treatment rod. A cooling element is provided inside the microneedle treatment rod, and the heating surface is connected to the cooling element through a heat conduction rod.

[0023] By employing the above technical solution, the cooling element consumes energy during the cooling process, which is ultimately dissipated as heat. Therefore, while conducting cold air to the microneedle treatment tip, the cooling element itself also generates heat. If this heat cannot be handled in time, it will affect the cooling efficiency of the cooling element. However, by connecting the heating surface of the cooling element to the cooling component inside the microneedle treatment rod through a heat conduction rod, the heat generated by the heating surface can be transferred to the cooling component through the heat conduction rod, thereby effectively dissipating heat from the cooling element.

[0024] Optionally, the microneedle treatment rod and the microneedle treatment needle are detachably connected. One end of the microneedle treatment rod and the microneedle treatment needle is provided with a snap-fit ​​ring. The snap-fit ​​ring has a snap-fit ​​groove. The microneedle treatment housing is provided with a snap-fit ​​block that engages with the snap-fit ​​groove.

[0025] By adopting the above technical solution, the detachable connection between the microneedle treatment rod and the microneedle treatment needle is achieved through the snap-fit ​​of the snap-fit ​​groove and snap-fit ​​block, which makes it convenient to replace different microneedle treatment needles according to different patient conditions.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. When using microneedle therapy devices to treat patients, turn on the negative pressure pump, connect the negative pressure pump to the negative pressure port through the negative pressure pipeline, and connect the connecting port to the air extraction port to create a negative pressure environment inside the negative pressure enclosure. This can tighten the skin of the affected area that needs treatment, and then treat the affected area with the treatment microneedles, which alleviates the problem that the microneedle needles cannot fit the loose skin well.

[0028] 2. The mutual attraction between the stepper motor and the lifting platform via the magnetic poles and the attraction element allows the auxiliary support spring to move the lifting platform away from the limit element when the microneedle needs to return to the microneedle treatment shell after treatment, thus allowing the microneedle to return to the microneedle treatment shell.

[0029] 3. The cooling surface of the cooling pad can provide timely cooling during microneedle treatment, while the heat generated by the heating surface of the cooling pad can be transferred to the cooling component through the heat conduction rod to achieve effective heat dissipation of the heating surface. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a microneedle therapy device according to an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the internal structure of a microneedle therapy device according to an embodiment of this application.

[0032] Figure 3 This is a schematic diagram of the overall structure of the microneedle treatment component of a microneedle treatment device according to an embodiment of this application.

[0033] Figure 4 This is a schematic diagram of the internal structure of the microneedle treatment component of a microneedle treatment device according to an embodiment of this application.

[0034] Figure 5 This is a schematic diagram of the microneedle treatment shell of a microneedle treatment device according to an embodiment of this application.

[0035] Figure 6 This is a schematic diagram of the structure of the microneedle treatment rod and the microneedle treatment needle of a microneedle treatment device according to an embodiment of this application.

[0036] Figure 7 This is a schematic diagram of the internal structure of the microneedle needle of a microneedle treatment device according to an embodiment of this application.

[0037] Figure 8 This is a schematic diagram showing the connection between the stepper motor and the internal structure of the microneedle treatment needle in a microneedle treatment device according to an embodiment of this application.

[0038] Figure 9 This is an exploded view of the stepper motor and attracting magnetic poles of a microneedle therapy device according to an embodiment of this application.

[0039] Figure 10 This is a schematic diagram of the structure of the fixing frame of a microneedle therapy device in an embodiment of this application.

[0040] Figure 11 This is a schematic diagram of the back of the internal structure of the microneedle treatment component of a microneedle treatment device according to an embodiment of this application.

[0041] Figure 12 This is a schematic diagram showing the fixing of a thermometer and a first circuit board in a microneedle therapy device according to an embodiment of this application.

[0042] Explanation of reference numerals in the attached drawings: 1. Main unit; 11. Main unit housing; 12. Negative pressure pump; 13. Negative pressure pipe; 14. Microneedle treatment device holder; 15. Silencer; 16. Pressure relief valve; 2. Microneedle treatment device; 21. Microneedle treatment needle; 211. Microneedle treatment outer shell; 2111. Snap-fit ​​block; 2112. Square platform; 21121. First connecting hole; 212. Treatment microneedle; 213. Fixed base; 2131. Fixed base plate; 2132. Lifting base plate; 2133. Lifting platform; 21331. Suction component; 21332. Extension; 2134. First circuit board; 21341. Thermometer; 2135. Second connecting hole; 214. Negative pressure barrier; 2141. Air extraction port; 215. Guide rod; 216. Limiting component; 2 161. Through hole; 2217. Support spring; 22. Microneedle therapy rod; 221. Stepper motor; 2211. Output end; 2212. Motor body; 2213. Attracting magnetic pole; 2214. Fixing sleeve; 223. Cooling element; 224. Heat conduction rod; 225. Cooling component; 226. Snap-fit ​​ring; 2261. Snap-fit ​​groove; 22611. Longitudinal groove; 22612. Transverse groove; 227. Negative pressure port; 228. Connecting port; 229. Protective sleeve; 230. Second circuit board; 231. Fixing bracket; 2311. Fixing base; 2312. Support column; 23121. Electrostatic spring; 2313. Fixing ring; 2314. Fixing block; 232. Heat-conducting base; 233. Fixing plate; 234. Fixing box. Detailed Implementation

[0043] The present application will be further described in detail below with reference to the accompanying drawings.

[0044] This application discloses a microneedle therapy device.

[0045] See attached document Figure 1 As shown, a microneedle therapy device includes a main unit 1 and a microneedle therapy component 2. The microneedle therapy component 2 is connected to the main unit 1 via a negative pressure pipe 13. When not in use, the microneedle therapy component 2 is placed on a microneedle therapy component holder 14 on the top of the main unit 1.

[0046] See attached document Figure 1 and attached Figure 2 As shown, the host 1 includes a host housing 11, and a negative pressure pump 12 for generating negative pressure is installed inside the host housing 1.

[0047] See attached document Figure 3As shown, the microneedle treatment device 2 includes a microneedle treatment needle 21 and a microneedle treatment rod 22, with the microneedle treatment needle 21 for treatment mounted at one end of the microneedle treatment rod 22.

[0048] See attached document Figure 3 Appendix Figure 4 and attached Figure 5 As shown, the microneedle treatment needle 21 includes a microneedle treatment shell 211 and a treatment microneedle 212. The microneedle treatment shell 211 has a receiving cavity inside, and a fixing base 213 is provided in the receiving cavity. The treatment microneedle 212 is disposed on the fixing base 213. A first connecting hole 21121 is provided at the top of the microneedle treatment shell 211, and the treatment microneedle 212 can be exposed from the first connecting hole 21121.

[0049] See attached document Figure 2 and attached Figure 5 As shown, a negative pressure fence 214 is provided around the top of the microneedle treatment shell 211, and the side wall of the negative pressure fence 214 is connected to the negative pressure pump 12 through the negative pressure pipe 13.

[0050] First, align the negative pressure barrier 214 on the microneedle treatment needle 21 of the microneedle treatment device 2 with the patient's affected area. Then, start the negative pressure pump 12 to extract gas from the negative pressure barrier 214 through the negative pressure pipe 13, so that negative pressure is formed inside the negative pressure barrier 214. The loose skin in the area where the patient needs treatment is attracted by the negative pressure barrier 214. Then, insert the treatment microneedle 212 into the patient's skin for treatment, which alleviates the problem that the microneedle treatment needle 21 cannot adhere well to the loose skin.

[0051] For details, please refer to the appendix. Figure 5 As shown, the microneedle treatment shell 211 is generally hemispherical, with a rectangular area at its top. This rectangular area allows for better connection of the wound edges during treatment, reducing gaps caused by overlapping areas. A square platform 2112 is mounted on the square area, sharing the same center of gravity as the square area. Nine first connecting holes 21121 are evenly distributed on the square platform 2112. A negative pressure barrier 214 is fixed to the outermost perimeter of the square area, and is slightly taller than the square platform 2112. An air extraction port 2141 extends outward from the side wall of the negative pressure barrier 214.

[0052] See attached document Figure 3 and attached Figure 4As shown, the microneedle treatment rod 22 has a negative pressure port 227 at its tail end. The negative pressure port 227 is connected to a connecting port 228 for communication with an air extraction port 2141. The connecting port 228 extends from the side wall near the tail end of the microneedle treatment rod 22 and on the same side as the air extraction port 2141. The connecting port 228 is connected to the air extraction port 2141 via the connecting tube. A protective sleeve 229 is also installed at the bottom end of the microneedle treatment rod 22 to protect the connection between the negative pressure pipe 13 and the negative pressure port 227. The protective sleeve 229 is an elastic, slender, frustoconical shape.

[0053] See attached document Figure 2 and attached Figure 4 As shown, the negative pressure pipe 13 can pass through the protective sleeve 229 and connect to the negative pressure pipe port 227.

[0054] See attached document Figure 2 and attached Figure 3 As shown, the negative pressure pump 12 is fixed to the bottom of the main unit housing 11. The side wall of the main unit housing 11 is also provided with a silencer 15 for preventing and reducing noise and a pressure relief valve 16 for relieving pressure on the negative pressure enclosure 214.

[0055] See attached document Figure 3 and attached Figure 6 As shown, the microneedle treatment rod 22 and the microneedle treatment needle 21 are detachably connected. A retaining ring 226 is installed at one end of the microneedle treatment rod 22 connected to the microneedle treatment needle 21. The retaining ring 226 has two retaining grooves 2261 for engaging with the microneedle treatment needle 21. Each retaining groove 2261 includes a longitudinal groove 22611 and a transverse groove 22612. One end of the longitudinal groove 22611 communicates with the upper side of the retaining ring 226, and the other end communicates with one end of the transverse groove 22612. The longitudinal groove 22611 and the transverse groove 22612 are perpendicular to each other. A retaining block 2111 is provided on the bottom side of the microneedle treatment housing 211 to engage with the retaining grooves 2261. The width of the retaining block 2111 is no greater than the width of the longitudinal groove 22611, and the thickness of the retaining block 2111 is no greater than the thickness of the transverse groove 22612.

[0056] See attached document Figure 5 and attached Figure 7As shown, the fixed base 213 includes a fixed base plate 2131, a lifting base plate 2132, a lifting platform 2133, and a first circuit board 2134. The fixed base plate 2131 is generally circular. The lifting base plate 2132 is fixed to the other side of the fixed base plate 2131. The microneedle treatment shell 211 is bolted to the lifting base plate 2132. The lifting platform 2133 is slidably engaged with the lifting base plate 2132. The lifting platform 2133 is generally rectangular. The first circuit board 2134 is installed in the middle of the lifting platform 2133, and one end of multiple treatment microneedles 212 is installed on the first circuit board 2134. Guide rods 215 are respectively provided at the four corners of the lifting platform 2133. The lifting platform 2133 can slide towards or away from the lifting base plate 2132 through the guide rods 215. One end of the guide rod 215 passes through the lifting platform 2133 and is fixedly connected to the lifting base plate 2132. A support spring 2217 is sleeved on the outer periphery of the guide rod 215. One end of the support spring 2217 is fixedly connected to the lifting platform 2133, and the other end of the support spring 2217 abuts against the limiting member 216.

[0057] See attached document Figure 3 and attached Figure 7 As shown, in order to prevent the treatment microneedle 212 from shaking and to ensure that the treatment microneedle 212 can stably pass through the first connecting hole 21121, a limiting member 216 is fixed at the other end of the guide rod 215. The limiting member 216 has the same number of through holes 2161 as the treatment microneedle 212, and the treatment microneedle 212 passes through the through holes 2161.

[0058] See attached document Figure 3 and attached Figure 8 As shown, a stepper motor 221 is fixed inside the microneedle treatment rod 22. The stepper motor 221 includes an output terminal 2211 and a motor body 2212. The output terminal 2211 of the stepper motor 221 faces the port where the microneedle treatment rod 22 connects to the microneedle treatment needle 21. The output terminal 2211 of the stepper motor 221 can move toward or away from the microneedle treatment needle 21.

[0059] See attached document Figure 4 and attached Figure 8 As shown, the stepper motor 221 is electrically connected to the second circuit board 230 on both sides. The fixed base plate 2131 and the lifting base plate 2132 are both provided with a through second connecting hole 2135 at the same position. The lifting platform 2133 includes an extension 21332, which is cylindrical in shape and extends downward through the second connecting hole.

[0060] See attached document Figure 3 and attached Figure 8As shown, during the process of the stepper motor 221 output terminal 2211 moving towards the microneedle treatment needle 21 and exposing the treatment needle from the first connecting hole 21121, the lifting platform 2133 will move towards the limiting member 216, thereby compressing the support spring 2217. The stepper motor 221 has to overcome the elastic potential energy of the support spring 2217 to continue moving towards the microneedle treatment needle 21, which will increase the energy consumption of the stepper motor 221. Therefore, in order to reduce the energy consumption of the stepper motor 221, the support spring 2217 is selected to have a smaller elastic potential energy. In order to enable the treatment microneedle 212 to retract successfully, the bottom of the extension 21332 is fixed with a suction member 21331, and the output terminal 2211 of the stepper motor 221 is provided with a suction magnetic pole 2213 for attracting the suction member.

[0061] See attached document Figure 9 As shown, a fixing sleeve 2214 is provided on the outside of the attracting magnetic pole 2213 and the output end 2211 for fixing the attracting magnetic pole 2213 and the output end 2211.

[0062] See attached document Figure 8 and attached Figure 10 As shown, a fixing frame 231 is provided between the stepper motor 221 and the fixed base plate 2131. The fixing frame 231 is generally annular cylindrical and includes a fixing base 2311 and multiple support columns 2312. The support columns 2312 are divided into two groups, one group has three columns, each of which is cylindrical, and the other group has one column, which is partially annular. The two groups are arranged opposite to each other on the fixing base 2311. The support columns 2312 are welded around the fixing base 2311 to improve the stability of the fixing frame 231. A first fixing ring 2313 is welded around the middle of the support column 2312. A fixing block 2314 is also welded to a group of three support columns 2312 to enhance stability. The fixing base 2311 is bolted to the motor body 2212. Multiple power-taking springs 23121 for communication power supply are installed inside the support column 2312. One end of the power-taking spring 23121 abuts against the bottom of the fixing base plate 2131 to take power from the spring, and the other end of the power-taking spring 23121 is welded to the fixing base 2311.

[0063] See attached document Figure 4 and attached Figure 10 As shown, a cooling chip 223 is provided in the middle of the fixing frame 231. The cooling chip 223 includes a cooling surface and a heating surface. The cooling surface faces the fixing base plate 2131 to cool the inside of the microneedle treatment needle 21. The heating surface faces the stepper motor 221. One side of the heating surface is fixed on the heat-conducting base 232. The heat-conducting base 232 is partially inserted between the fixing ring 2313 and the fixing block 2314.

[0064] See attached document Figure 3 and attached Figure 4As shown, the heat-conducting base 232 is bolted to the outer shell of the microneedle treatment rod 22. Heat-conducting rods 224 are also connected to both sides of the heat-conducting base 232.

[0065] See attached document Figure 11 As shown, a fixing plate 233 is fixed to the rear side of the stepper motor 221. A fixing box 234 is bolted to the bottom end of the fixing plate 233. A cooling component 225 for dissipating heat from the heating surface of the cooling chip 223 is fixed inside the fixing box 234. The cooling component 225 is a block shape. The end of the heat conduction rod 224 is welded to the side wall of the fixing box 234.

[0066] See attached document Figure 12 As shown, a thermometer 21341 for detecting the temperature of the treatment microneedle 212 is soldered to the bottom of the first circuit board 2134. The thermometer 21341 passes through the first circuit board 2134 and the limiting member 216 and protrudes from the end of the limiting member 216.

[0067] The implementation principle of a microneedle therapy device according to an embodiment of this application is as follows: First, the negative pressure barrier 214 on the microneedle treatment needle 21 of the microneedle treatment component 2 is aligned with the patient's affected area. Then, the negative pressure pump 12 is activated to extract gas from the negative pressure barrier 214 through the negative pressure pipe 13, creating a negative pressure inside the negative pressure barrier 214. The loose skin in the area where the patient needs treatment is attracted by the negative pressure barrier 214. Then, the output end 2211 of the stepper motor 221 moves toward the direction of the microneedle treatment needle 21. The output end 2211 passes through... After passing through the heat-conducting base 232, the cooling plate 223, the fixed substrate 2131, and the lifting substrate 2132, the attraction magnetic pole 2213 of the output end 2211 and the attraction member 21331 of the extension 21332 of the lifting platform 2133 attract each other. The stepper motor 221 pushes the lifting platform 2133, which drives the treatment microneedle 212 to move, so that the treatment microneedle 212 passes through the first connecting hole 21121 and is inserted into the patient's skin for treatment, which alleviates the problem that the microneedle treatment needle 21 cannot adhere well to the loose skin.

[0068] During microneedle therapy, the cooling element 223 generates cold air. This cold air enters the microneedle treatment housing 211 through the gap between the housing and the fixed substrate 2131, cooling the microneedle 212 during treatment. Meanwhile, the heat generated by the cooling element 223 is exchanged with the cooling component 225 along the heat-conducting base 232 and the heat-conducting rod 224 within the fixed housing 234, achieving heat dissipation and cooling.

[0069] When the treatment microneedle 212 completes treatment and needs to return to the microneedle treatment shell 211, the stepper motor 221 moves away from the microneedle treatment shell 211, and the support spring 2217 releases elastic potential energy. During the movement of the stepper motor 221 away from the microneedle treatment shell 211, the mutual attraction between the attraction magnetic pole 2213 and the attraction element 21331 can assist the support spring 2217 in moving the lifting platform 2133 away from the limit element 216, so that the treatment microneedle 212 returns to the microneedle treatment shell 211.

[0070] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A microneedle therapy device, characterized in that... The device includes a main unit (1) and a microneedle treatment device (2), with one end of the main unit (1) and the microneedle treatment device (2) connected. The main unit (1) includes a main unit housing (11), and a negative pressure pump (12) for generating negative pressure is installed inside the main unit housing (11). The microneedle treatment device (2) includes a microneedle treatment needle (21) and a microneedle treatment rod (22). The microneedle treatment needle (21) is installed at one end of the microneedle treatment rod (22). The microneedle treatment needle (21) includes a microneedle treatment shell (211) and a treatment microneedle (212). A receiving cavity is formed inside the microneedle treatment shell (211), and a fixed base (213) is provided inside the receiving cavity. The treatment microneedle (212) is disposed on the fixed base. On the fixed base (213), the fixed base (213) includes a fixed base plate (2131), a lifting base plate (2132), a lifting platform (2133), and a first circuit board (2134). The lifting base plate (2132) is fixed on the fixed base (213). The lifting base plate (2132) is fixedly connected to the microneedle treatment shell (211). The lifting base plate (2132) is slidably connected to the lifting platform (2133). The first circuit board (2134) is mounted on the lifting platform. One end of the treatment microneedle (212) is mounted on the first circuit board (2134). The microneedle treatment shell (211) is connected to the microneedle treatment rod (22). 2) A stepper motor (221) is provided inside. The output end (2211) of the stepper motor (221) moves toward or away from the microneedle treatment needle (21). The fixed base plate (2131) and the lifting base plate (2132) are provided with a through second connecting hole (2135). The lifting platform (2133) is slidably connected to the lifting base plate (2132) through a guide rod (215). The treatment microneedle (212) is provided with a limiting member (216) for limiting the treatment microneedle (212). The guide rod (215) is fixedly connected to the limiting member (216). A support spring (2217) is sleeved on the outer periphery of the guide rod (215). The support spring (2217) is... 7) One end of the support spring (2217) is fixedly connected to the lifting platform (2133), and the other end of the support spring (2217) abuts against the limiting member (216). The stepper motor (221) is provided with an attractive magnetic pole (2213) at the end that abuts against the bottom surface of the lifting platform (2133). The lifting platform (2133) is provided with an attractive member (21331) for being attracted by the attractive magnetic pole (2213) at the end that abuts against the stepper motor (221). The microneedle treatment shell (211) has a first connecting hole (21121) at the top, and the treatment microneedle (212) protrudes from the first connecting hole (21121). A negative pressure fence (214) is provided around the top of the microneedle treatment shell (211).The sidewall of the negative pressure enclosure (214) is connected to the negative pressure pump (12) via a negative pressure pipe (13).

2. The microneedle therapy device according to claim 1, characterized in that: The negative pressure fence (214) has an air extraction port (2141) extending outward from its side wall. The microneedle treatment rod (22) has a negative pressure port (227) at its tail end for communicating with the negative pressure pipe (13). The negative pressure port (227) is connected to a connecting port (228) for communicating with the air extraction port (2141). The connecting port (228) is connected to the air extraction port (2141).

3. The microneedle therapy device according to claim 2, characterized in that: The bottom end of the microneedle treatment rod (22) is provided with a protective sleeve (229) for protecting the connection between the negative pressure pipe (13) and the negative pressure port (227). The negative pressure pipe (13) passes through the protective sleeve (229) and communicates with the negative pressure port (227).

4. The microneedle therapy device according to claim 1, characterized in that: The end of the microneedle treatment rod (22) and the microneedle treatment needle (21) is provided with a cooling plate (223) for cooling the microneedle treatment needle (21).

5. A microneedle therapy device according to claim 4, characterized in that: The cooling element (223) includes a cooling surface and a heating surface. The cooling surface faces the microneedle treatment needle (21), and the heating surface faces the microneedle treatment rod (22). A cooling element (225) is provided inside the microneedle treatment rod (22). The heating surface is connected to the cooling element (225) through a heat conduction rod (224).

6. A microneedle therapy device according to claim 1, characterized in that: The microneedle treatment rod (22) is detachably connected to the microneedle treatment needle (21). A snap ring (226) is provided at one end of the microneedle treatment rod (22) and the microneedle treatment needle (21). The snap ring (226) has a snap groove (2261). The microneedle treatment shell (211) is provided with a snap block (2111) that snaps into the snap groove (2261).

Images