Pre-filled micropore injector

Abstract

The utility model provides a pre-filling micropore injector, relates to the technical field of auxiliary structures of micropore injectors, and aims to solve the problems that when an existing micropore injector is actually used, a worker operates the injector to extract liquid medicine in an ampoule bottle and then injects the liquid medicine, the risk of bacterial contamination exists in the extraction process, and the injection time is prolonged. Comprising a pipe body, the left end of the pipe body is fixedly connected with a connector pipe, the outer wall of the pipe body is fixedly connected with a liquid injection pipe, the top of the liquid injection pipe is provided with an antibacterial plug block, the antibacterial plug block and the liquid injection pipe are matched in shape, a piston head is installed in the pipe body, and the right side of the piston head is fixedly connected with a push rod. A limiting sleeve is movably connected to the outer wall of the push rod, a handheld plate is fixedly connected to the right tail end of the push rod, and a connecting pipe is fixedly connected to the left end of the connector pipe.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary structure technology for microporous syringes, and in particular to a pre-filled microporous syringe. Background Technology

[0002] Micro-orifice injectors typically refer to injectors with tiny orifices, allowing for precise and painless injections. Their key feature is the microporous structure, which enables medication to enter the patient's body in a finer and more even manner, thus improving injection accuracy and comfort.

[0003] In practical use, existing microporous syringes require operators to draw the medication from the ampoule before injection. This process carries the risk of bacterial contamination and prolongs the injection time. Therefore, designing a pre-filled microporous syringe to solve these technical problems is of great importance. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing microporous syringes, when used in practice, require operators to operate the syringe to extract the medicine from the ampoule before injection, which poses a risk of bacterial contamination during the extraction process and prolongs the injection time. Therefore, a pre-filled microporous syringe is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pre-filled microporous syringe, comprising a tube body, an interface tube fixedly connected to the left end of the tube body, an injection tube fixedly connected to the outer wall of the tube body, an antibacterial plug installed at the top of the injection tube, the antibacterial plug and the injection tube being mutually fitted in shape, a piston head installed in the tube body, a push rod fixedly connected to the right side of the piston head, a limit sleeve movably connected to the outer wall of the push rod, a hand grip plate fixedly connected to the right end of the push rod, and a connecting tube fixedly connected to the left end of the interface tube.

[0006] Preferably, an antibacterial membrane is fixedly connected to the inner wall of the interface tube, and the antibacterial membrane is made of plastic film material.

[0007] Preferably, a needle tube is threadedly connected to the left side of the connecting tube. The needle tube is a microporous needle tip, and a puncture membrane tube is fixedly connected to the inner wall of the needle tube. The puncture membrane tube has a conical cross-section.

[0008] Preferably, the piston head has a groove installed in the circumferential direction.

[0009] Preferably, both the tube body and the push rod are made of antibacterial material.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, during use, by setting an injection tube and an antibacterial plug on the tube body, and then setting an antibacterial membrane at the interface tube position, a space that can contain liquid is formed inside the tube body. Before the syringe injection, the tube body is pre-filled with medicine. Compared with the method of drawing medicine from the ampoule, the technical solution adopted by this utility model can realize the pre-filling of medicine before injection, which is convenient for staff to use, shortens the injection time, and has a compact overall structure. It is directly installed on the tube body, optimizes the existing space structure, and is easy to use. It solves the problem that in the actual use of existing microporous syringes, when the staff operates the syringe to draw out the medicine from the ampoule before injection, there is a risk of bacterial contamination during the extraction process, which prolongs the injection time.

[0012] 2. In this utility model, during use, a groove is provided on the piston head to facilitate sliding in the tube body. The tube body is made of antibacterial material, which improves the overall antibacterial properties of the syringe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the tube structure of the pre-filled microporous syringe of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the pre-filled microporous syringe of this utility model;

[0015] Figure 3 This is a partial structural diagram of the push rod and limiting sleeve in the pre-filled microporous syringe of this utility model.

[0016] Legend: 1. Tube body; 101. Interface tube; 102. Antibacterial membrane; 2. Injection tube; 3. Antibacterial plug; 4. Piston head; 401. Push rod; 402. Limiting sleeve; 403. Hand grip plate; 404. Needle; 405. Perforation tube; 406. Groove; 5. Connecting tube. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] This utility model provides a pre-filled microporous syringe, including a tube body 1. An interface tube 101 is fixedly connected to the left end of the tube body 1. An injection tube 2 is fixedly connected to the outer wall of the tube body 1. An antibacterial plug 3 is installed at the top of the injection tube 2. The antibacterial plug 3 and the injection tube 2 are mutually fitted in shape. A piston head 4 is installed inside the tube body 1. A push rod 401 is fixedly connected to the right side of the piston head 4. A limit sleeve 402 is movably connected to the outer wall of the push rod 401. A hand grip plate 403 is fixedly connected to the right end, and a connecting tube 5 is fixedly connected to the left end of the interface tube 101. An antibacterial membrane 102 is fixedly connected to the inner wall of the interface tube 101. The antibacterial membrane 102 is made of plastic film material. A needle tube 404 is threadedly connected to the left side of the connecting tube 5. The needle tube 404 is a microporous needle. A puncture membrane tube 405 is fixedly connected to the inner wall of the needle tube 404. The puncture membrane tube 405 has a conical cross-section, which facilitates timely puncturing of the antibacterial membrane 102.

[0020] In actual use, the pre-filled microporous syringe is operated by moving the antibacterial plug 3 a short distance from the injection tube 2 (not completely from the opening of the injection tube 2). Then, the plunger 401 is manually operated to move the piston head 4 away from the interface tube 101. A suitable limiting sleeve 402 is then installed on the plunger 401 according to the distance between the plunger 401 and the tube body 1, restricting the plunger 401's movement within the tube body 1 and preventing accidental slippage. At this point, the needle 404 is not installed at the interface tube 101, and the antibacterial membrane 102 inside the interface tube 101 is sealed. The operator then manually operates the injection tool to inject fluid into the tube body 1 through the injection tube 2. After injection, the operator manually installs the antibacterial plug 3 at the opening of the injection tube 2. When injection is needed, the operator... After putting on disposable gloves, install and limit the needle 404 at the interface tube 101. During installation, the opening of the interface tube 101 should face upward to avoid a large amount of liquid overflowing when the puncture tube 405 punctures the antibacterial membrane 102. The needle 404 and the connecting tube 5 are connected by threads for easy disassembly and assembly by the staff. By setting the injection tube 2 and the antibacterial plug 3 on the tube body 1, and then setting the antibacterial membrane 102 at the interface tube 1, a space that can contain liquid is formed inside the tube body 1. The medicine is pre-filled inside the tube body 1 before the syringe is injected. Compared with the method of drawing medicine from the ampoule, the technical solution adopted by this utility model can realize the pre-filling of medicine before injection, which is convenient for staff to use, shortens the injection time, and has a compact overall structure. It is directly installed on the tube body 1, optimizes the existing space structure, and is easy to use.

[0021] Example 1

[0022] like Figure 1-3As shown, the piston head 4 has a groove 406 installed in the circumferential direction, and the tube body 1 and the push rod 401 are both made of antibacterial material.

[0023] The overall effect of embodiment 1 is that, during use, by providing a groove 406 on the piston head 4 to facilitate sliding on the tube body 1, and the tube body 1 being made of antibacterial material, the overall antibacterial degree of the syringe is improved.

[0024] Working principle: The antibacterial plug is moved a short distance from the injection tube position, but not completely removed from the injection tube opening. Then, the push rod is manually operated to move the piston head away from the interface tube. A suitable limiting sleeve is then installed on the push rod based on the distance between the push rod and the tube body, restricting the push rod's movement within the tube body and preventing accidental slippage. At this point, the syringe is not installed at the interface tube position, and the antibacterial membrane inside the interface tube is sealed. The operator then manually operates the replenishment tool to inject fluid into the tube body through the injection tube position. After replenishment, the operator manually installs the antibacterial plug at the opening of the injection tube. When injection is required, the operator, wearing disposable gloves, installs and limits the syringe at the interface tube position, ensuring the interface tube opening faces upwards to prevent a large amount of liquid from overflowing when the puncture tube punctures the antibacterial membrane. The syringe and connecting tube are connected by threads for easy assembly and disassembly.

Claims

1. A pre-filled microporous syringe comprising a barrel (1), a left end of the barrel (1) is fixedly connected with a connector tube (101), characterized in that, An injection tube (2) is fixedly connected to the outer wall of the tube body (1). An antibacterial plug (3) is installed on the top of the injection tube (2). The antibacterial plug (3) and the injection tube (2) fit each other in shape. A piston head (4) is installed in the tube body (1). A push rod (401) is fixedly connected to the right side of the piston head (4). A limit sleeve (402) is movably connected to the outer wall of the push rod (401). A hand grip plate (403) is fixedly connected to the right end of the push rod (401). A connecting tube (5) is fixedly connected to the left end of the interface tube (101).

2. The pre-filled, microneedle syringe of claim 1, wherein, An antibacterial membrane (102) is fixedly connected to the inner wall of the interface tube (101), and the antibacterial membrane (102) is made of plastic film material.

3. The pre-filled, microneedle syringe of claim 1, wherein, The left side of the connecting tube (5) is threaded with a needle tube (404), which is a micro-hole needle. A puncture tube (405) is fixedly connected to the inner wall of the needle tube (404), and the cross-section of the puncture tube (405) is conical.

4. The pre-filled, microneedle syringe of claim 1, wherein, The piston head (4) has a groove (406) installed in the circumferential direction.

5. The pre-filled, microneedle syringe of claim 1, wherein, Both the tube body (1) and the push rod (401) are made of antibacterial material.

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