Microneedle mold cleaning device

Abstract

The utility model provides a microneedle mold cleaning device. The microneedle mold cleaning device comprises a containing cavity, a microneedle mold fixing part and a flushing part. The microneedle mold fixing part is rotatably arranged in the accommodating cavity around the axis of the accommodating cavity and is used for mounting a microneedle mold on the microneedle mold fixing part; the containing cavity is provided with an exhaust port and a liquid inlet, and the exhaust port is used for being connected with a negative pressure end so that negative pressure can be formed in the containing cavity; the liquid inlet is used for allowing cleaning liquid to flow into the accommodating cavity; the flushing part is arranged in the accommodating cavity and is used for spraying flushing liquid towards the microneedle mold mounted on the microneedle mold fixing part; the flushing member repeatedly flushes the microneedle mold as the microneedle mold fixing portion rotates about the axis. According to the configuration, negative pressure can be formed in the containing cavity based on the arrangement of the exhaust port, tiny bubbles and the like in the concave cavity structure of the microneedle mold can be removed, and the soaking and cleaning effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a micro-needle mold cleaning device. Background Art

[0002] Microneedle drug delivery is a new type of transdermal drug delivery method. Because it can achieve minimally invasive and painless drug delivery by piercing the stratum corneum of the skin, it has received more and more attention in skin drug delivery and beauty, and has been widely used. Microneedles are generally made by microneedle molds 01 (such as Figure 1 The microneedle mold 01 is prepared by mainly using stainless steel, silicone, silicon material, etc., which has the characteristics of low price, good consistency and easy preparation of complete microneedle needle shape.

[0003] However, there are certain challenges in cleaning the microneedle mold 01 after use. Generally, the shape of the microneedle is a conical structure with a height of 25μm to 2000μm. In order to ensure the puncture ability of the microneedle, the microneedle needs to have a needle base with sufficient support strength and a needle tip with sufficient sharpness. Therefore, when preparing the microneedle, the needle tip of the microneedle is easy to break and remain in the concave cavity structure 02 of the microneedle mold 01, forming residue 03. The concave cavity structure 02 of this microneedle mold 01 presents the reverse mold shape of the microneedle, which has the characteristics of relatively deep depth, small tip size, large number and high density. This brings many challenges to the cleaning of the microneedle mold 01.

[0004] Currently, commonly used cleaning methods for microneedle molds include immersion, ultrasound, flushing, etc. However, since the size of the concave cavity structure 02 of the microneedle mold 01 is small, it is difficult for the cleaning liquid to enter the concave cavity structure 02 due to air barrier. Even with the addition of auxiliary means such as ultrasound and flushing, it is difficult to completely remove the residue 03 in the concave cavity structure 02 of the microneedle mold 01. Utility Model Content

[0005] The utility model aims to provide a microneedle mold cleaning device to solve the problem that the microneedle mold is difficult to clean.

[0006] In order to solve the above technical problems, the utility model provides a microneedle mold cleaning device, which includes: a containing cavity, a microneedle mold fixing part and a flushing component;

[0007] The microneedle mold fixing part is rotatably disposed in the accommodating cavity around the axis of the accommodating cavity, and is used for the microneedle mold to be installed thereon;

[0008] The accommodating chamber has an exhaust port and a liquid inlet, the exhaust port is used to be connected to the negative pressure end so that negative pressure is formed in the accommodating chamber; the liquid inlet is used to allow the cleaning liquid to flow into the accommodating chamber;

[0009] The flushing component is disposed in the accommodating cavity and is used for spraying flushing liquid toward the microneedle mold mounted on the microneedle mold fixing part; as the microneedle mold fixing part rotates around the axis, the flushing component repeatedly flushes the microneedle mold.

[0010] Optionally, the microneedle mold cleaning device further includes: a purge component;

[0011] The purge component is disposed in the accommodating cavity and is used for blowing gas toward the microneedle mold mounted on the microneedle mold fixing part; as the microneedle mold fixing part rotates around the axis, the purge component repeatedly purges the microneedle mold.

[0012] Optionally, the microneedle mold fixing portion includes a roller and a mold slot arranged on the outer circumference of the roller; the mold slot extends along the direction of the axis to allow the microneedle mold to be inserted along the direction of the axis and to limit the circumferential position and radial position of the microneedle mold relative to the roller.

[0013] Optionally, the microneedle mold fixing portion further includes a pressure cover, which is detachably connected to one axial end of the roller to limit the axial position of the microneedle mold relative to the roller.

[0014] Optionally, the flushing component is parallel to the axis and offset relative to the microneedle mold fixing portion; the flushing component has a plurality of nozzles arranged along the direction of the axis.

[0015] Optionally, the microneedle mold cleaning device further includes: an ultrasonic module;

[0016] The ultrasonic module is disposed in the accommodating cavity and is used to output ultrasonic waves to the cleaning liquid accommodated in the accommodating cavity.

[0017] Optionally, the accommodating cavity further has a liquid outlet, and the liquid outlet is used for allowing liquid to discharge from the accommodating cavity.

[0018] Optionally, the microneedle mold cleaning device further includes: a circulation heating module;

[0019] The circulation heating module is connected to the accommodating chamber via a circulation pipeline, and is used for circulation heating the cleaning liquid accommodated in the accommodating chamber.

[0020] Optionally, the microneedle mold cleaning device further includes: a driving module and a transmission component;

[0021] The driving module is connected to the microneedle mold fixing part through the transmission component, and the driving module is used to drive the microneedle mold fixing part to rotate around the axis.

[0022] Optionally, the accommodating cavity is defined by a main body and a cover body; the cover body is connected to the main body in an openable and closable manner; when the cover body is opened, the microneedle mold fixing part is allowed to escape from the main body.

[0023] In summary, the microneedle mold cleaning device provided by the utility model includes a accommodating chamber, a microneedle mold fixing part and a flushing component; the microneedle mold fixing part is rotatably arranged in the accommodating chamber around the axis of the accommodating chamber, and is used for the microneedle mold to be installed thereon; the accommodating chamber has an exhaust port and a liquid inlet, the exhaust port is used to be connected to the negative pressure end to form a negative pressure in the accommodating chamber; the liquid inlet is used for the cleaning liquid to flow into the accommodating chamber; the flushing component is arranged in the accommodating chamber, and is used to spray flushing liquid toward the microneedle mold installed on the microneedle mold fixing part; as the microneedle mold fixing part rotates around the axis, the flushing component repeatedly flushes the microneedle mold.

[0024] With such a configuration, based on the setting of the exhaust port, a negative pressure can be formed in the accommodating cavity, which can allow tiny bubbles in the concave cavity structure of the microneedle mold to escape, thereby improving the contact effect between the cleaning liquid and the concave cavity structure of the microneedle mold. The flushing component is combined with the fixing part of the microneedle mold to realize rotary flushing, which can achieve a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Those skilled in the art will appreciate that the drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0026] Figure 1 is a schematic diagram of a microneedle mold;

[0027] Figure 2 It is an overall schematic diagram of a microneedle mold cleaning device according to an embodiment of the utility model;

[0028] Figure 3 It is a partial schematic diagram of a microneedle mold cleaning device according to an embodiment of the utility model;

[0029] Figure 4 It is a partial cross-sectional view of a microneedle mold cleaning device according to an embodiment of the utility model;

[0030] Figure 5 It is a partial cross-sectional view of the microneedle mold cleaning device of an embodiment of the utility model from another perspective;

[0031] Figure 6 It is a schematic diagram of the transmission component and the microneedle mold fixing part of the embodiment of the utility model;

[0032] Figure 7 It is a schematic diagram of the microneedle mold fixing part of an embodiment of the utility model.

[0033] In the attached figure:

[0034] 01-microneedle mold; 02-cavity structure; 03-residue;

[0035] 10-accommodating chamber; 101-liquid inlet; 102-exhaust port; 103-air inlet; 104-liquid outlet; 11-main body; 12-cover body; 13-outer shell; 14-operating screen; 20-microneedle mold fixing part; 21-roller; 22-mold slot; 23-connector; 24-pressing cover; 40-flushing component; 41-nozzle; 42-high-pressure water pump; 50-circulating heating module; 51-circulating pipeline; 52-heater; 53-circulating pump; 60-ultrasonic module; 70-driving module; 80-transmission component; 81-transmission disk; 82-transmission rod; 90-purge component; 91-air outlet. DETAILED DESCRIPTION

[0036] In order to make the purpose, advantages and features of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. In addition, the structure shown in the drawings is often a part of the actual structure. In particular, the emphasis of each drawing is different, and sometimes different scales are used.

[0037] As used in the present invention, the singular forms "one", "an", "one" and "the" include plural objects, the term "or" is usually used to include the meaning of "and / or", the term "several" is usually used to include the meaning of "at least one", and the term "at least two" is usually used to include the meaning of "two or more". In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features, "one end" and "the other end" as well as "proximal end" and "distal end" generally refer to two corresponding parts, which include not only endpoints. In addition, as used in the present invention, "installed", "connected", "connected", and one element "set" on another element should be understood in a broad sense, usually only indicating that there is a connection, coupling, cooperation or transmission relationship between the two elements, and the connection, coupling, cooperation or transmission between the two elements can be direct or indirect through an intermediate element, and cannot be understood as indicating or implying the spatial position relationship between the two elements, that is, one element can be in any orientation such as inside, outside, above, below or one side of another element, unless the content clearly indicates otherwise. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, directional terms such as above, below, up, down, upward, downward, left, right, etc. are used relative to the exemplary embodiments as shown in the figures, with the upward or upper direction toward the top of the corresponding figure, and the downward or lower direction toward the bottom of the corresponding figure.

[0038] The utility model aims to provide a microneedle mold cleaning device to solve the problem that the microneedle mold is difficult to clean.

[0039] Please refer to Figures 2 to 7 The embodiment of the utility model provides a microneedle mold cleaning device, which includes: a accommodating chamber 10, a microneedle mold fixing part 20 and a flushing component 40; the microneedle mold fixing part 20 is rotatably arranged in the accommodating chamber 10 around the axis A of the accommodating chamber 10, and is used for the microneedle mold 01 to be installed thereon; the accommodating chamber 10 has an exhaust port 102 and a liquid inlet 101, the exhaust port 102 is used to be connected to the negative pressure end to form a negative pressure in the accommodating chamber 10; the liquid inlet 101 is used for the cleaning liquid to flow into the accommodating chamber; the flushing component 40 is arranged in the accommodating chamber 10, and is used to spray the flushing liquid toward the microneedle mold 01 installed on the microneedle mold fixing part 20; as the microneedle mold fixing part 20 rotates around the axis A, the flushing component 40 repeatedly flushes the microneedle mold 01.

[0040] Preferably, the accommodating cavity 10 is defined by the body 11 and the cover 12; the cover 12 is connected to the body 11 in an openable and closable manner; when the cover 12 is opened, the microneedle mold fixing part 20 is allowed to be removed from the body 11. The setting of the openable and closable cover 12 facilitates the removal and insertion of the microneedle mold fixing part 20, so as to facilitate the installation of the microneedle mold 01. It can be understood that when the cover 12 is closed, it should be able to be sealed with the body 11, so that a relatively closed space can be formed inside the accommodating cavity 10.

[0041] Please refer to Figure 2 and Figure 3 In an alternative exemplary embodiment, the main body 11 is a metal liner, and its material can be a material with a certain strength and corrosion resistance, such as stainless steel. The shape of the main body 11 is preferably cylindrical and extends along the axis A, with a closed bottom and an open top, so as to facilitate the removal and loading of the microneedle mold fixing part 20. Furthermore, the microneedle mold cleaning device also includes an outer shell 13, and the main body 11 is accommodated in the outer shell 13. Optionally, the cover body 12 can be rotatably arranged on the outer shell 13, for example, by means of components such as hinges or rotating shafts, and a sealing locking component can preferably be provided so that when the cover body 12 is rotated to a position covering the main body 11, a reliable seal can be achieved. Those skilled in the art can reasonably configure the connection between the cover body 12 and the outer shell 13 and the opening and closing method of the cover body 12 according to the prior art, and the utility model will not be described in detail.

[0042] Please refer to Figures 3 to 5 In one embodiment, the exhaust port 102 is opened on the main body 11. The exhaust port 102 is preferably provided with a vacuum valve. The negative pressure end includes a vacuum pump disposed outside the accommodating chamber 10, and the vacuum pump is connected to the exhaust port 102. In some embodiments, the negative pressure end such as a vacuum pump can be integrated into the microneedle mold cleaning device, for example, integrated in the outer shell 13. In other embodiments, the negative pressure end can utilize the centralized negative pressure pipeline of the factory. In this case, the negative pressure end can be disposed outside the microneedle mold cleaning device, and in the application, it only needs to connect the exhaust port 102 to the centralized negative pressure pipeline of the factory.

[0043] When the vacuum valve of the exhaust port 102 is opened, the accommodating chamber 10 can be evacuated by a vacuum pump until a preset vacuum degree is reached, and then the vacuum valve of the exhaust port 102 is closed, thereby forming a negative pressure in the accommodating chamber 10. Preferably, the accommodating chamber 10 further has an air inlet 103, which is also provided on the body 11 and is also provided with a vacuum valve. When the vacuum pump evacuates the accommodating chamber 10, the vacuum valve of the air inlet 103 is closed.

[0044] In one embodiment, the liquid inlet 101 is provided at the bottom of the body 11. Preferably, the liquid inlet 101 has a solenoid valve to control its opening and closing. The cleaning liquid can be, for example, water, or a cleaning agent or water containing a cleaning agent. The cleaning liquid enters the accommodating chamber 10 through the liquid inlet 101, and can soak the microneedle mold 01 installed on the microneedle mold fixing part 20 in the accommodating chamber 10.

[0045] Since the concave cavity structure 02 of the microneedle mold 01 is small in size and large in number, many tiny bubbles are easily formed in the cleaning liquid and attached to the surface of the concave cavity structure 02. These tiny bubbles are sometimes blocked between the residue 03 and the cleaning liquid, which is not conducive to the cleaning effect. In order to reduce or eliminate the adverse effects of these tiny bubbles, preferably, the cleaning liquid can enter the accommodating chamber 10 after the accommodating chamber 10 is evacuated and a negative pressure is established, so that the cleaning liquid can be more fully in contact with the concave cavity structure 02 of the microneedle mold 01, so that the tiny bubbles therein can be quickly discharged under negative pressure. Of course, in other embodiments, it is also possible to first inject the cleaning liquid into the accommodating chamber 10, and then evacuate the accommodating chamber 10. However, such a configuration requires that the exhaust port 102 is above the liquid level after the cleaning liquid is injected. After completing the negative pressure immersion, the vacuum valve of the air inlet 103 can be opened, and the negative pressure in the accommodating chamber 10 is restored to a normal pressure state.

[0046] Preferably, the microneedle mold cleaning device also includes a circulating heating module 50; the circulating heating module 50 is connected to the accommodating chamber 10 through a circulating pipeline 51, and is used for circulating heating the cleaning liquid contained in the accommodating chamber 10. The setting of the circulating heating module 50 can heat the cleaning liquid in the accommodating chamber 10. By adjusting the temperature of the cleaning liquid, the needs of immersion cleaning of different types of residues 03 can be met, and the effect of immersion cleaning can be improved. In one embodiment, the circulating pipeline 51 and the accommodating chamber 11 have two connecting ports, and the circulating heating module 50 includes components such as a heater 52 and a circulating pump 53, and the heater 52 and the circulating pump 53 are connected in series to the circulating pipeline 51 in sequence. Of course, the structure of the circulating heating module 50 is not limited to this, and those skilled in the art can understand and configure it according to the prior art.

[0047] Furthermore, the accommodating chamber 10 also has a liquid outlet 104, and the liquid outlet 104 is used to discharge the liquid out of the accommodating chamber 10. The liquid outlet 104 is preferably arranged at the bottom of the body 11. It can be used to discharge the waste liquid after the cleaning liquid is soaked, and it can also be used to discharge the waste liquid after the rinsing liquid rinses the microneedle mold 01. Preferably, the liquid outlet 104 has a solenoid valve 105 to control its opening and closing.

[0048] Optionally, the microneedle mold cleaning device further includes an ultrasonic module 60; the ultrasonic module 60 is disposed in the accommodating chamber 10, and is used to output ultrasonic waves to the cleaning liquid contained in the accommodating chamber 10. In one embodiment, the ultrasonic module 60 includes an ultrasonic vibrator, which can be attached to the outside of the side wall of the body 11, for example. Of course, in other embodiments, the ultrasonic vibrator can also be disposed in or within the side wall of the body 11, and those skilled in the art can configure it according to actual conditions. During the process of the microneedle mold 01 being soaked in the cleaning liquid, the ultrasonic module 60 can output ultrasonic waves, which are transmitted to the cleaning liquid through the body 11, and then transmitted to the microneedle mold 01, and can further impact the residues 03 or bubbles on the surface of the microneedle mold 01, so that the residues 03 or bubbles on the surface of the microneedle mold 01 are separated. It should be noted that the ultrasonic module 60 can work when the accommodating chamber 10 is in a negative pressure state, and can also work when the accommodating chamber 10 is in a normal pressure state, and this embodiment is not limited to this.

[0049] Please refer to Figure 6 and Figure 7 Optionally, the microneedle mold fixing part 20 includes a roller 21 and a mold slot 22 arranged on the outer periphery of the roller 21; the mold slot 22 extends along the direction of the axis A, for the microneedle mold 01 to be inserted along the direction of the axis A, and limits the circumferential position and radial position of the microneedle mold 01 relative to the roller 21. In an alternative exemplary embodiment, the roller 21 is a hollow cylindrical member, and the number of mold slots 22 is not limited, preferably multiple, and uniformly arranged around the axis A. The width of the mold slot 22 is adapted to the microneedle mold 01 to be installed, and the microneedle mold 01 can be inserted from one axial end of the mold slot 22. Preferably, the microneedle mold 01 has a side with a concave cavity structure 02 facing outward. The width of each mold slot 22 can be the same or different, and mold slots 22 of different widths can be adapted to microneedle molds 01 of different specifications.

[0050] Furthermore, the microneedle mold cleaning device also includes a driving module 70 and a transmission component 80; the driving module 70 is connected to the microneedle mold fixing part 20 through the transmission component 80, and the driving module 70 is used to drive the microneedle mold fixing part 20 to rotate around the axis A.

[0051] In an alternative exemplary embodiment, the driving module 70 includes a motor, which is disposed outside the accommodating cavity 10, preferably at the bottom of the body 11. Optionally, the driving module 70 also includes a plurality of transmission structures such as gears or belts, and the output shaft of the entire driving module 70 coincides with the axis A.

[0052] The transmission component 80 includes a transmission disc 81 and a transmission rod 82. The transmission disc 81 is connected to the bottom of the drum 21, for example, by clamping. The transmission rod 82 is arranged along the axis A, one end of the transmission rod 82 is connected to the top of the drum 21 through the connecting member 23, and the other end of the transmission rod 82 is fixedly connected to the transmission disc 81, passes through the transmission disc 81, passes through the bottom of the body 11 and is connected to the driving module 70. Therefore, the driving module 70 can drive the drum 21 to rotate stably around the axis A through the transmission rod 82 and the transmission disc 81.

[0053] Optionally, the microneedle mold fixing part 20 further includes a pressure cap 24, which is detachably connected to one axial end of the roller 21 to limit the axial position of the microneedle mold 01 relative to the roller 21. The pressure cap 24 is preferably disposed on the top of the roller 21, and its outer diameter is slightly larger than the outer diameter of the roller 21, so as to cover the mold slot 22 and the microneedle mold 01. In one embodiment, the pressure cap 24 can be connected to the transmission rod 82 through a nut, thereby achieving connection with the roller 21.

[0054] Optionally, the flushing component 40 has a plurality of nozzles 41 arranged along the direction of the axis A; the spray direction of the nozzle 41 is preferably toward the axis A. Of course, in some embodiments, the spray direction of the nozzle 41 may also be at a certain angle to the axis A, and does not have to be perpendicular to the axis A. The nozzle 41 can turn the flushing liquid into a high-speed, tiny jet and spray it in the direction of the axis A. These jets act vertically on the surface of the microneedle mold 01 and can directly reach the inside of the concave cavity structure 02 to flush out the residue 03. In an alternative exemplary embodiment, the flushing component 40 is generally columnar and parallel to the axis A, and is offset relative to the microneedle mold fixing part 20. The offset here means that the flushing component 40 is arranged on one side of the microneedle mold fixing part 20, so that a certain spacing distance is formed between the flushing component 40 and the microneedle mold fixing part 20, so that the flushing liquid has a certain space to turn into a high-speed, tiny jet, so that the flushing is more thorough and clean. The bottom end of the flushing component 40 passes through the bottom of the body 11 and is fixedly connected to the bottom of the body 11. After passing through the body 11, the flushing component 40 is connected to the high-pressure water pump 42 through the solenoid valve. It should be noted that the flushing liquid sprayed by the flushing component 40 can be the same as the aforementioned cleaning liquid or different. Preferably, the flushing liquid is water.

[0055] It can be understood that the flushing component 40 is offset to one side of the microneedle mold fixing part 20, and when the microneedle mold fixing part 20 rotates around the axis A, the flushing component 40 can flush the entire periphery of the microneedle mold fixing part 20. As the microneedle mold fixing part 20 continues to rotate, the flushing component 40 repeatedly flushes the microneedle mold 01 on the microneedle mold fixing part 20, so that the concave cavity structure 02 of each microneedle mold 01 will be repeatedly cleaned.

[0056] Optionally, the microneedle mold cleaning device further includes a purge component 90; the purge component 90 is disposed in the accommodating cavity 10, and is used to blow gas toward the microneedle mold 01 mounted on the microneedle mold fixing portion 20. As the microneedle mold fixing portion 20 rotates around the axis A, the purge component 90 repeatedly purges the microneedle mold 01. The airflow blown out of the air outlet 91 acts vertically on the surface of the microneedle mold 01, and can directly reach the inside of the concave cavity structure 02. On the one hand, it can reduce water stains on the surface of the microneedle mold 01 after drying, and on the other hand, it can also blow away foreign matter remaining attached to the concave cavity structure 02 (there may be certain dead angles in the concave cavity structure 02, and the flushing component 40 may not be able to completely flush away foreign matter). That is, the setting of the purge component 90 can be used to dry the cleaned microneedle mold 01, and can also blow away possible remaining foreign matter by blowing gas.

[0057] In an alternative exemplary embodiment, the purge component 90 is in the shape of a column parallel to the axis A, and is offset relative to the microneedle mold fixing part 20. The offset here means that the purge component 90 is arranged on one side of the microneedle mold fixing part 20, so that a certain spacing distance is formed between the purge component 90 and the microneedle mold fixing part 20. The purge component 90 has a strip-shaped air outlet 91 extending in the direction of the axis A. The bottom end of the purge component 90 passes through the bottom of the body 11 and is fixedly connected to the bottom of the body 11. After the purge component 90 passes through the body 11, it is connected to the compressed air supply end (such as an air compressor) through a solenoid valve. It can be understood that the purge component 90 is offset to one side of the microneedle mold fixing part 20. When the microneedle mold fixing part 20 rotates around the axis A, the purge component 90 can form a purge on the entire periphery of the microneedle mold fixing part 20. As the microneedle mold fixing part 20 continues to rotate, the purge component 90 realizes repeated purge of the microneedle mold 01 on the microneedle mold fixing part 20.

[0058] Optionally, the driving module 70 can operate at different stages of the cleaning process of the microneedle mold 01, and the driving module 70 can drive the microneedle mold fixing part 20 to rotate at different speeds at different stages. For example, in the soaking stage (referring to the stage in which the cleaning liquid is injected into the accommodating cavity 10 to soak the microneedle mold 01), the driving module 70 preferably drives the microneedle mold fixing part 20 to rotate at a low speed. At this time, the ultrasonic module 60 can work synchronously, so that the residue 03 in the concave cavity structure 02 can be fully mixed with the cleaning liquid. In the flushing stage (referring to the stage in which the flushing component 40 sprays the flushing liquid), the driving module 70 preferably drives the microneedle mold fixing part 20 to rotate at a low speed. In the drying stage (referring to the stage in which the purge component 90 blows gas), the driving module 70 preferably drives the microneedle mold fixing part 20 to rotate at a high speed.

[0059] The following is an exemplary description of the steps for using the microneedle mold cleaning device provided in this embodiment.

[0060] Step S1: Open the cover 12, take out the microneedle mold fixing part 20, detach the pressure cover 24, install the microneedle mold 01 into the mold slot 22, and keep the concave cavity structure 02 of the microneedle mold 01 facing outwards. Figure 6 and Figure 7 Then, the roller 21 is installed on the transmission disk 81, the transmission rod 82 passes through the connecting piece 23, and the pressure cover 24 is installed on the roller 21, so as to complete the assembly of the microneedle mold fixing part 20 and the microneedle mold 01.

[0061] Step S2: Place the assembled microneedle mold fixing part 20 and the microneedle mold 01 into the body 11, close the cover 12, close the vacuum valve of the air inlet 103, the solenoid valve of the purge component 90, the solenoid valve of the flushing component 40, the solenoid valve of the liquid inlet 101, and the solenoid valve of the liquid outlet 104, turn on the vacuum pump, open the vacuum valve of the exhaust port 102, and evacuate the accommodating chamber 10. When the vacuum degree reaches the preset value, close the vacuum valve of the exhaust port 102 and turn off the vacuum pump.

[0062] Step S3: Open the solenoid valve of the liquid inlet 101 to allow the cleaning liquid to enter the cavity, and when the predetermined liquid level is reached, close the solenoid valve of the liquid inlet 101. Turn on the ultrasonic module 60, and the working time of the ultrasonic module 60 can be selected to be 5 minutes to 15 minutes.

[0063] Step S4: Open the vacuum valve of the air inlet 103 to restore the negative pressure in the accommodating chamber 10 to normal pressure. Turn on the driving module 70, select the low speed mode, and turn on the ultrasonic module 60 at the same time. The driving module 70 and the ultrasonic module 60 can work together for 20 minutes to 30 minutes to fully mix the residue 03 with the cleaning liquid.

[0064] Step S5: opening the solenoid valve of the liquid outlet 104 to discharge the waste liquid in the accommodating chamber 10 .

[0065] Step S6: Turn on the drive module 70, select the low speed mode, turn on the solenoid valve of the flushing component 40, and start the flushing component 40 to work (such as turning on the high pressure water pump 42). The flushing time can be selected from 10 minutes to 30 minutes.

[0066] Step S7: Turn on the driving module 70, select the high-speed mode, turn on the solenoid valve of the purge component 90, and start the purge component 90 to work (such as turning on the compressed air supply end), so that the microneedle mold 01 can be dried quickly and evenly.

[0067] Step S8: After drying is completed, the cover body 12 is opened, the microneedle mold fixing part 20 is taken out, the pressing cover 24 is detached, and the microneedle mold 01 is taken out of the mold slot 22 .

[0068] Preferably, at least a part of the above steps can be programmed to realize automatic or semi-automatic operation of cleaning the microneedle mold 01. Optionally, the microneedle mold cleaning device further includes an operation screen 14, which can be arranged on the outer shell 13, for displaying and interactively inputting parameters of each step.

[0069] In summary, the microneedle mold cleaning device provided by the utility model includes a accommodating chamber, a microneedle mold fixing part and a flushing component; the microneedle mold fixing part is rotatably arranged in the accommodating chamber around the axis of the accommodating chamber, and is used for the microneedle mold to be installed thereon; the accommodating chamber has an exhaust port and a liquid inlet, the exhaust port is used to be connected to the negative pressure end, so that a negative pressure is formed in the accommodating chamber; the liquid inlet is used for the cleaning liquid to flow into the accommodating chamber; the flushing component is arranged in the accommodating chamber, and is used to spray the flushing liquid toward the microneedle mold installed on the microneedle mold fixing part; as the microneedle mold fixing part rotates around the axis, the flushing component repeatedly flushes the microneedle mold. In such a configuration, based on the setting of the exhaust port, a negative pressure can be formed in the accommodating chamber, and tiny bubbles in the concave cavity structure of the microneedle mold can be released, thereby improving the contact effect between the cleaning liquid and the concave cavity structure of the microneedle mold, and the flushing component and the microneedle mold fixing part are combined to realize rotational flushing, so as to achieve a better cleaning effect.

[0070] It should be noted that the above embodiments can be combined with each other. The above description is only a description of the preferred embodiments of the utility model, and does not limit the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure are within the protection scope of the utility model.

Claims

1. A microneedle mold cleaning device, characterized in that: include: An accommodating cavity, a microneedle mold fixing portion, and a flushing component; The microneedle mold fixing part is rotatably disposed in the accommodating cavity around the axis of the accommodating cavity, and is used for the microneedle mold to be installed thereon; The accommodating chamber has an exhaust port and a liquid inlet, the exhaust port is used to be connected to the negative pressure end so that negative pressure is formed in the accommodating chamber; the liquid inlet is used to allow the cleaning liquid to flow into the accommodating chamber; The flushing component is disposed in the accommodating cavity and is used for spraying flushing liquid toward the microneedle mold mounted on the microneedle mold fixing part; as the microneedle mold fixing part rotates around the axis, the flushing component repeatedly flushes the microneedle mold.

2. The microneedle mold cleaning device according to claim 1, characterized in that: The microneedle mold cleaning device further includes: a purge component; The purge component is disposed in the accommodating cavity and is used for blowing gas toward the microneedle mold mounted on the microneedle mold fixing part; as the microneedle mold fixing part rotates around the axis, the purge component repeatedly purges the microneedle mold.

3. The microneedle mold cleaning device according to claim 1, characterized in that: The microneedle mold fixing part includes a roller and a mold clamping groove arranged on the outer periphery of the roller; the mold clamping groove extends along the direction of the axis to allow the microneedle mold to be inserted along the direction of the axis and to limit the circumferential position and radial position of the microneedle mold relative to the roller.

4. The microneedle mold cleaning device according to claim 3, characterized in that: The microneedle mold fixing part further comprises a pressure cover, and the pressure cover is detachably connected to one axial end of the roller to limit the axial position of the microneedle mold relative to the roller.

5. The microneedle mold cleaning device according to claim 1, characterized in that: The flushing component is parallel to the axis and offset relative to the microneedle mold fixing part; the flushing component has a plurality of nozzles arranged along the axis.

6. The microneedle mold cleaning device according to claim 1, characterized in that: The microneedle mold cleaning device also includes: an ultrasonic module; The ultrasonic module is disposed in the accommodating cavity and is used to output ultrasonic waves to the cleaning liquid accommodated in the accommodating cavity.

7. The microneedle mold cleaning device according to claim 1, characterized in that: The accommodating cavity also has a liquid outlet, and the liquid outlet is used for allowing liquid to be discharged from the accommodating cavity.

8. The microneedle mold cleaning device according to claim 1, characterized in that: The microneedle mold cleaning device also includes: a circulation heating module; The circulation heating module is connected to the accommodating chamber via a circulation pipeline, and is used for circulation heating the cleaning liquid accommodated in the accommodating chamber.

9. The microneedle mold cleaning device according to claim 1, characterized in that: The microneedle mold cleaning device also includes: a driving module and a transmission component; The driving module is connected to the microneedle mold fixing part through the transmission component, and the driving module is used to drive the microneedle mold fixing part to rotate around the axis.

10. The microneedle mold cleaning device according to claim 1, characterized in that: The accommodating cavity is defined by a main body and a cover body; the cover body is connected to the main body in an openable and closable manner; when the cover body is opened, the microneedle mold fixing part is allowed to escape from the main body.

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