Autologous repair microneedle injector

Abstract

The utility model discloses an autologous repair microneedle injector, which relates to the technical field of medical instruments and comprises a liquid storage tube, a pushing mechanism is arranged in the liquid storage tube, the bottom of the pushing mechanism is fixedly connected with a blocking block, the blocking block is inserted into the lower side wall of the liquid storage tube in a sliding manner, a microneedle liquid penetrating head is fixedly mounted on the bottom surface of the blocking block, and the microneedle liquid penetrating head is fixedly connected with the liquid storage tube. A limiting head is fixedly installed on the bottom face of the liquid storage pipe, the micro-needle liquid penetrating head is arranged in the limiting head, a through hole is formed in the surface of the lower side wall of the limiting head, the specification of the micro-needle liquid penetrating head is matched with that of the through hole, an extrusion mechanism is arranged in the liquid storage pipe, and a liquid adding assembly is arranged on the side face of the liquid storage pipe. Through cooperation of the extrusion mechanism and other mechanisms, rapid connection of microneedle puncturing and repairing stock solution coating is achieved, the repairing stock solution can enter a wound in time, the skin repairing effect after a microneedle operation is guaranteed, and the situation that the coating opportunity is delayed due to the fact that the self-flowing speed of the repairing stock solution is low is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a self-repairing micro-needle syringe. Background Art

[0002] Microneedle injection, also known as microneedle treatment or microneedle therapy, is a medical technology that uses tiny needle-like instruments to implement mechanical, physical and minimally invasive stimulation on the skin soft tissue in order to achieve therapeutic or cosmetic effects. It can be accompanied by the simultaneous or step-by-step administration of drugs or effective ingredients, and the use of microneedles to improve their transdermal absorption efficiency, thereby enhancing the therapeutic or cosmetic effects.

[0003] A Chinese patent with authorization announcement number CN217828621U in the prior art discloses a self-repair activation microneedle syringe, including a tube body, a partition is fixedly connected to the inner wall of the tube body near the bottom, a delivery tube is fixedly connected through the center of the partition, and an injection mechanism is fixedly connected to the side wall on either side of one end of the delivery tube away from the partition. The injection mechanism is formed by arranging a motor and a needle. This mechanism can be moved by a moving plate driven by a motor, and the moving plate drives the needle to perforate the face through a telescopic rod. While perforating, the repair solution stored in the telescopic rod can be injected into the facial aperture, thereby improving the efficiency of the injection and ensuring the efficiency of the facial absorption of the repair solution.

[0004] The above-mentioned existing technical solutions have the following defects: there is a lack of an accelerating propulsion mechanism for the repair solution. During perforation, the repair solution in the telescopic rod can only be injected into the facial skin relying on the self-flow of the repair solution under the action of gravity. The repair solution is generally a viscous liquid with a slow flow rate. After the microneedle wound is formed, it cannot be ensured that the repair solution can flow to the wound surface in time, resulting in the repair effect cannot be guaranteed.

[0005] For this purpose, a self-repairing microneedle injector is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the existing self-repair microneedle syringe lacks an accelerating propulsion mechanism for the repair liquid, resulting in the inability of the repair liquid to be applied in time and enter the wound to take effect after microneedle puncture. The utility model provides a self-repair microneedle syringe.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] The self-repairing microneedle syringe comprises a liquid storage tube, a pushing mechanism is arranged inside the liquid storage tube, a blocking block is fixedly connected to the bottom of the pushing mechanism, the blocking block is slidably inserted into the lower side wall of the liquid storage tube, a microneedle liquid permeable head is fixedly installed on the bottom surface of the blocking block, a limiting head is fixedly installed on the bottom surface of the liquid storage tube, the microneedle liquid permeable head is arranged inside the limiting head, a through hole is opened on the surface of the lower side wall of the limiting head, the specification of the microneedle liquid permeable head is compatible with the through hole, an extrusion mechanism is arranged inside the liquid storage tube, and a liquid adding component is arranged on the side of the liquid storage tube.

[0009] Furthermore, the pushing mechanism includes a telescopic motor, which is fixedly installed in the middle of the top surface of the liquid storage tube. The output end of the telescopic motor is fixedly connected to a connecting rod, which is slidably connected to the top wall of the liquid storage tube. The blocking block is fixedly installed on the bottom surface of the connecting rod. A stabilizing plate is fixedly mounted on the surface of the connecting rod, and the stabilizing plate is slidably connected to the side of the inner wall of the liquid storage tube.

[0010] Furthermore, the microneedle liquid-permeable head includes a mounting plate, which is fixedly mounted on the bottom surface of the blocking block, and slidably mounted on the side surface of the inner wall of the limit head. A needle is provided on the bottom surface of the mounting plate, and a liquid-permeable hole is opened on the surface of the mounting plate. The number of the needles and the liquid-permeable holes are both several and distributed in a circular array. The liquid-permeable holes and needles are arranged in a circular interval, and the needle is arranged directly above the through hole and is adapted to the specifications of the through hole.

[0011] Furthermore, the extrusion mechanism includes a rotating motor, the output end of the rotating motor is fixedly connected to a threaded rod, the threaded rod is rotatably installed between the top wall and the bottom wall of the liquid storage tube and is movably connected to the stabilizing plate, a limit block is fixedly installed on the surface of the threaded rod, a lifting block is threadedly installed on the surface of the threaded rod, the lifting block is slidably mounted on the surface of the connecting rod, a sealing rubber ring is fixedly installed on the side of the lifting block, and the sealing rubber ring is slidably arranged to fit the side of the inner wall of the liquid storage tube.

[0012] Furthermore, the upper surface of the threaded rod is smooth and the middle and lower surfaces are provided with threads.

[0013] Furthermore, the liquid adding assembly comprises a liquid inlet pipe, which is fixedly mounted on the side of the liquid storage tube and communicated with the inside of the liquid storage tube. A rubber plug is movably sleeved on the surface of one end of the liquid inlet pipe away from the liquid storage tube.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model drives the blocking block and the microneedle liquid-permeable head to rise and fall rapidly at the same time through a pushing mechanism, and at the same time squeezes the repair liquid in the liquid storage tube downward through an extrusion mechanism, and the microneedle liquid-permeable head moves downward to perform a microneedle puncture operation. When the blocking block moves downward to the lowest point, the lower side wall of the liquid storage tube loses the blockage of the blocking block, and the repair liquid in the liquid storage tube quickly flows out through the lower side wall of the liquid storage tube, the microneedle liquid-permeable head and the through hole through the extrusion effect of the extrusion mechanism, and is finally applied to the skin surface. With the cooperation of the extrusion mechanism and other mechanisms, a rapid connection between microneedle puncture and application of the repair liquid is achieved, and the repair liquid can enter the wound in time, thereby ensuring the repair effect of the skin after microneedle surgery and avoiding the situation where the timing of application is delayed due to the slow self-flow speed of the repair liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the three-dimensional structure of the utility model;

[0018] Figure 3 This utility model Figure 2 A magnified view of the structure of the middle part A;

[0019] Figure numerals: 1. liquid storage tube; 2. pushing mechanism; 201. telescopic motor; 202. connecting rod; 203. stabilizing plate; 3. blocking block; 4. microneedle liquid permeable head; 401. mounting plate; 402. needle head; 403. liquid permeable hole; 5. limiting head; 6. through hole; 7. extrusion mechanism; 701. rotating motor; 702. threaded rod; 703. limiting block; 704. lifting block; 705. sealing rubber ring; 8. liquid adding assembly; 801. liquid inlet pipe; 802. rubber plug. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0025] like Figures 1 to 3 As shown, the self-repairing microneedle syringe includes a liquid storage tube 1, a pushing mechanism 2 is provided inside the liquid storage tube 1, a blocking block 3 is fixedly connected to the bottom of the pushing mechanism 2, the blocking block 3 is slidably inserted into the lower side wall of the liquid storage tube 1, a microneedle liquid permeable head 4 is fixedly installed on the bottom surface of the blocking block 3, a limiting head 5 is fixedly installed on the bottom surface of the liquid storage tube 1, the microneedle liquid permeable head 4 is arranged inside the limiting head 5, a through hole 6 is opened on the surface of the lower side wall of the limiting head 5, the specification of the microneedle liquid permeable head 4 is compatible with the through hole 6, an extrusion mechanism 7 is provided inside the liquid storage tube 1, and a liquid adding component 8 is provided on the side of the liquid storage tube 1.

[0026] Specifically, the repair liquid is first injected into the liquid storage tube 1 through the liquid adding component 8, and the bottom surface of the limit head 5 is placed in contact with the skin surface. The pushing mechanism 2 drives the blocking block 3 and the microneedle liquid-permeable head 4 to rise and fall rapidly at the same time, and the squeezing mechanism 7 squeezes the repair liquid in the liquid storage tube 1 downward. When the microneedle liquid-permeable head 4 moves up and down rapidly under the action of the pushing mechanism 2, its part will briefly extend from the through hole 6 at the bottom of the limiting head 5, thereby performing microneedle puncture on the skin surface. At the same time, after the blocking block 3 moves downward to the lower end, the lower side wall of the liquid storage tube 1 loses the blockage of the blocking block 3. Under the squeezing action of the squeezing mechanism 7, the repair liquid in the liquid storage tube 1 will quickly flow into the limiting head 5 through the lower side wall of the liquid storage tube 1, and flow out through the microneedle liquid-permeable head 4 and the through hole 6. The skin surface that is finally coated realizes the rapid connection between microneedle puncture and application of the repair liquid under the action of the squeezing mechanism 7, thereby ensuring the repair effect of the skin after microneedle surgery and avoiding the situation where the timing of application is delayed due to the slow self-flow speed of the repair liquid.

[0027] like Figure 1 , Figure 2As shown, the pushing mechanism 2 includes a telescopic motor 201, which is fixedly installed in the middle of the top surface of the liquid storage tube 1. The output end of the telescopic motor 201 is fixedly connected with a connecting rod 202, and the connecting rod 202 is slidably connected to the top wall of the liquid storage tube 1. The blocking block 3 is fixedly installed on the bottom surface of the connecting rod 202, and a stabilizing plate 203 is fixedly mounted on the surface of the connecting rod 202, and the stabilizing plate 203 is slidably connected to the side of the inner wall of the liquid storage tube 1.

[0028] Specifically, after the telescopic motor 201 is turned on, its telescopic end drives the connecting rod 202 to move up and down, and the connecting rod 202 drives the blocking block 3 and the microneedle liquid penetration head 4 to move up and down quickly. At the same time, the stabilizing plate 203 fixedly installed on the surface of the connecting rod 202 also slides up and down along the inner wall side of the liquid storage tube 1. The stabilizing plate 203 limits and stabilizes the connecting rod 202 to ensure that after the blocking block 3 moves downward and leaves the bottom surface of the liquid storage tube 1, it can reliably slide and embed into the lower side wall of the liquid storage tube 1 when it moves upward again to block the lower side wall of the liquid storage tube 1. At the same time, the stabilizing plate 203 can also prevent the connecting rod 202 from shaking and tilting after multiple up and down movements.

[0029] like Figure 2 , Figure 3 As shown, the microneedle liquid permeable head 4 includes a mounting plate 401, which is fixedly mounted on the bottom surface of the blocking block 3, and is slidably mounted on the inner wall side of the limiting head 5. A needle 402 is provided on the bottom surface of the mounting plate 401, and a liquid permeable hole 403 is opened on the surface of the mounting plate 401. The number of the needles 402 and the liquid permeable holes 403 are both several and distributed in a circular array. The liquid permeable holes 403 and the needles 402 are arranged in a circular interval, and the needle 402 is arranged directly above the through hole 6 and is adapted to the specifications of the through hole 6.

[0030] Specifically, the pushing mechanism 2 drives the blocking block 3 and the mounting plate 401 to rise and fall rapidly, so that the needle 402 on the bottom surface of the mounting plate 401 extends out from the through hole 6. Since the bottom surface of the limiting head 5 is placed in contact with the skin surface, the extended needle 402 will form a micro wound on the skin surface. At the same time, after the blocking block 3 leaves the bottom surface of the liquid storage tube 1, the repair liquid in the liquid storage tube 1 quickly flows into the limiting head 5 through the lower side wall of the liquid storage tube 1 under the squeezing action of the squeezing mechanism 7, and flows through the liquid permeable hole 403 on the surface of the mounting plate 401 to the lower side of the mounting plate 401 under the squeezing of the liquid storage tube 1, and finally flows out through the through hole 6 and is applied to the skin surface.

[0031] like Figure 1 , Figure 2As shown, the extrusion mechanism 7 includes a rotating motor 701, and the output end of the rotating motor 701 is fixedly connected to a threaded rod 702, the threaded rod 702 is rotatably installed between the top wall and the bottom wall of the liquid storage tube 1 and is movably connected to the stabilizing plate 203, a limiting block 703 is fixedly installed on the surface of the threaded rod 702, and a lifting block 704 is threadedly installed on the surface of the threaded rod 702, and the lifting block 704 is slidably mounted on the surface of the connecting rod 202, and a sealing rubber ring 705 is fixedly installed on the side of the lifting block 704, and the sealing rubber ring 705 is slidingly arranged to fit the side of the inner wall of the liquid storage tube 1.

[0032] Specifically, the output end of the rotating motor 701 drives the threaded rod 702 to rotate. Since the lifting block 704 is slidably mounted on the surface of the connecting rod 202 and is threadedly installed on the surface of the threaded rod 702, the rotation of the threaded rod 702 will drive the lifting block 704 to rise and fall, and the lifting block 704 drives the sealing rubber ring 705 to rise and fall synchronously. When the lifting block 704 and the sealing rubber ring 705 descend, they will squeeze the repair liquid in the liquid storage tube 1, so that the repair liquid will flow downward quickly after the blocking block 3 leaves the bottom surface of the liquid storage tube 1. The limit block 703 can effectively limit the upward moving height of the lifting block 704, thereby preventing the limit block 703 from contacting the stabilizing plate 203, causing the lifting and lowering of the stabilizing plate 203 and the connecting rod 202 to be disturbed.

[0033] like Figure 2 As shown, the upper surface of the threaded rod 702 is smooth and the middle and lower surfaces are provided with threads.

[0034] Specifically, the smooth surface of the upper section of the threaded rod 702 can ensure active connection with the stabilizing plate 203, so that the stabilizing plate 203 can be normally lifted and lowered while the threaded rod 702 can be normally rotated. The threads on the lower section of the threaded rod 702 are used to drive the lifting block 704 to lift and lower.

[0035] like Figure 1 , Figure 2 As shown, the liquid adding assembly 8 includes a liquid inlet pipe 801, which is fixedly installed on the side of the liquid storage tube 1 and communicated with the inside of the liquid storage tube 1. A rubber plug 802 is movably mounted on the surface of one end of the liquid inlet pipe 801 away from the liquid storage tube 1.

[0036] Specifically, the rubber plug 802 is removed from the surface of the liquid inlet tube 801 , and then the repair solution can be injected from the liquid inlet tube 801 into the liquid storage tube 1 using an injection tool.

[0037] In summary, the utility model drives the blocking block 3 and the microneedle liquid-permeable head 4 to rise and fall rapidly at the same time through the pushing mechanism 2, and at the same time squeezes the repair liquid in the liquid storage tube 1 downward through the squeezing mechanism 7, and the microneedle liquid-permeable head 4 moves downward to perform the microneedle puncture operation. When the blocking block 3 moves downward to the lowest point, the lower side wall of the liquid storage tube 1 will lose the blockage of the blocking block 3, and the squeezing action of the squeezing mechanism 7 makes the repair liquid in the liquid storage tube 1 quickly flow out through the lower side wall of the liquid storage tube 1, the microneedle liquid-permeable head 4 and the through hole 6, and finally the skin surface coated with the microneedle puncture and the repair liquid coating are quickly connected with each other under the cooperation of the squeezing mechanism 7 and other mechanisms. The repair liquid can enter the wound in time, ensuring the repair effect of the skin after microneedle surgery, avoiding the delay of the coating time due to the slow self-flow speed of the repair liquid, and solving the problem that the existing autologous repair microneedle syringe lacks an accelerating propulsion mechanism for the repair liquid, resulting in the repair liquid being unable to be coated in time and enter the wound to play its role after microneedle puncture.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A self-repairing microneedle syringe, characterized in that: The invention comprises a liquid storage tube (1), wherein a pushing mechanism (2) is provided inside the liquid storage tube (1), a blocking block (3) is fixedly connected to the bottom of the pushing mechanism (2), the blocking block (3) is slidably inserted into the lower side wall of the liquid storage tube (1), a microneedle liquid permeation head (4) is fixedly installed on the bottom surface of the blocking block (3), a limiting head (5) is fixedly installed on the bottom surface of the liquid storage tube (1), the microneedle liquid permeation head (4) is arranged inside the limiting head (5), a through hole (6) is opened on the surface of the lower side wall of the limiting head (5), the specification of the microneedle liquid permeation head (4) is compatible with the through hole (6), an extrusion mechanism (7) is provided inside the liquid storage tube (1), and a liquid adding component (8) is provided on the side of the liquid storage tube (1).

2. The self-repairing microneedle injector according to claim 1, characterized in that: The pushing mechanism (2) comprises a telescopic motor (201), the telescopic motor (201) is fixedly mounted on the middle of the top surface of the liquid storage tube (1), the output end of the telescopic motor (201) is fixedly connected to a connecting rod (202), the connecting rod (202) is slidably connected to the top wall of the liquid storage tube (1), the blocking block (3) is fixedly mounted on the bottom surface of the connecting rod (202), a stabilizing plate (203) is fixedly mounted on the surface of the connecting rod (202), and the stabilizing plate (203) is slidably connected to the side surface of the inner wall of the liquid storage tube (1).

3. The self-repairing microneedle injector according to claim 1, characterized in that: The micro-needle liquid-permeable head (4) comprises a mounting plate (401), wherein the mounting plate (401) is fixedly mounted on the bottom surface of the blocking block (3), and the mounting plate (401) is slidably mounted on the inner wall side of the limiting head (5). A needle (402) is provided on the bottom surface of the mounting plate (401), and a liquid-permeable hole (403) is provided on the surface of the mounting plate (401). The needle (402) and the liquid-permeable hole (403) are both present in a plurality of numbers and are distributed in a circular array. The liquid-permeable hole (403) and the needle (402) are arranged at intervals in a circular manner, and the needle (402) is arranged directly above the through hole (6) and is compatible with the specifications of the through hole (6).

4. The self-repairing microneedle injector according to claim 2, characterized in that: The squeezing mechanism (7) comprises a rotating motor (701), the output end of the rotating motor (701) is fixedly connected to a threaded rod (702), the threaded rod (702) is rotatably mounted between the top wall and the bottom wall of the liquid storage tube (1) and is movably connected to the stabilizing plate (203), a limit block (703) is fixedly mounted on the surface of the threaded rod (702), a lifting block (704) is threadedly mounted on the surface of the threaded rod (702), the lifting block (704) is slidably mounted on the surface of the connecting rod (202), a sealing rubber ring (705) is fixedly mounted on the side of the lifting block (704), and the sealing rubber ring (705) is slidably arranged in contact with the side of the inner wall of the liquid storage tube (1).

5. The self-repairing microneedle injector according to claim 4, characterized in that: The upper surface of the threaded rod (702) is smooth and the surfaces of the middle and lower sections are provided with threads.

6. The self-repairing microneedle injector according to claim 1, characterized in that: The liquid adding assembly (8) comprises a liquid inlet pipe (801), the liquid inlet pipe (801) being fixedly mounted on the side of the liquid storage pipe (1) and communicating with the interior of the liquid storage pipe (1), and a rubber plug (802) being movably mounted on the surface of one end of the liquid inlet pipe (801) away from the liquid storage pipe (1).

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