Puncture-proof syringe

Abstract

According to the technical scheme, the puncture-proof injector is characterized in that the puncture-proof injector comprises a needle tube, a push rod is arranged in the needle tube, a piston is fixedly installed at one end of the push rod, and a needle head is arranged on one side of the needle tube; during use, a user can push or rotate the piston through the push block to enable the piston to be attached to the arc-shaped block, then the piston is rotated to enable the inner column to be inserted into the side groove, the arc-shaped block is located in the side groove, at the moment, the piston is rotated to enable the arc-shaped block to be inserted into the clamping groove, and therefore when the piston is rotated, connection between the threaded column and the threaded ring can be achieved; the needle can be conveniently recycled into the needle tube by a user, and if the rotation resistance of the piston is too large, the use convenience can be improved by reversely rotating the threaded ring through the effect of the sealing bearing, so that the needle can be safely recycled into the needle tube, and the condition that a medical worker is stabbed when pulling a cap or a cap is avoided; and the sealing performance of the injector is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a puncture-resistant syringe. Background Technology

[0002] Syringes are a common medical device. Syringes are mainly used to draw or inject gases or liquids using a needle. Syringes can also be used in medical devices and containers, such as some scientific instruments in chromatography that inject through a rubber diaphragm.

[0003] However, with existing syringes, medical staff need to first remove the needle cap, insert the needle into the ampoule to draw the medication, and then remove the needle after injection, requiring them to put the needle cap back on. This process of removing the needle cap, inserting the ampoule, and then putting the needle cap back on poses a significant risk of injury to the medical staff. If the patient has infectious diseases such as HIV, syphilis, or hepatitis B, the risk to the medical staff is extremely high. To address these issues, we propose a puncture-proof syringe. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-puncture syringe, solving the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A puncture-resistant syringe includes: a needle tube with a push rod inside, a piston fixedly mounted at one end of the push rod, and a needle tip on one side of the needle tube; and a protective component disposed on one side of the needle tube for preventing puncture wounds.

[0007] By adopting the above technical solution and setting up protective components, the needle can be safely retrieved into the syringe, avoiding puncture injuries to medical staff when removing or capping the needle.

[0008] Preferably, the protective component includes: an outer hole, the outer hole being formed on one side of the needle tube, a sealed bearing being fixedly installed inside the outer hole, a threaded ring being fixedly installed inside the sealed bearing, a threaded post being threadedly connected inside the threaded ring, an infusion hole being formed on one side of the threaded post, and the infusion hole being fixedly connected to the needle.

[0009] By adopting the above technical solution and setting a threaded ring, the needle can be fixed in use by rotating the threaded post to make it threadedly connected to the threaded ring.

[0010] Preferably, the protective assembly further includes: a side groove, the side groove being formed on one side of the piston, two slots being formed inside the side groove, an arc-shaped block being fixedly installed on one side of the threaded column, a side hole being formed on one side of the arc-shaped block, and an inner column being fixedly installed inside the side hole.

[0011] By adopting the above technical solution and setting an inner column, the user can push the piston to fit against the arc-shaped block during use, and then rotate the piston to insert the inner column into the side groove, so that the arc-shaped block is located in the side groove. At this time, by rotating the piston again, the arc-shaped block is inserted into the slot. Therefore, by rotating the piston again, the connection between the threaded column and the threaded ring can be achieved, which makes it easy for the user to retract the needle into the needle tube and avoid puncture. If the piston rotation resistance is too high, the threaded ring can also be rotated in the opposite direction to increase the convenience of use through the action of the sealing bearing, thereby achieving the purpose of preventing puncture.

[0012] Preferably, a sealing ring is fixedly installed inside the threaded ring.

[0013] By adopting the above technical solution and setting a sealing ring for mounting the needle, the sealing performance of the syringe is increased.

[0014] Preferably, a push block is fixedly installed on one side of the push rod.

[0015] By adopting the above technical solution and setting a push block, it is convenient for users to push or rotate the piston.

[0016] Preferably, two support plates are fixedly installed on the outer circular wall surface of the needle.

[0017] By adopting the above technical solution and setting a support plate, it is easier for users to push the piston with a push block, thus increasing practicality.

[0018] In summary, the present invention has the following main advantages:

[0019] By incorporating protective components, the needle can be safely retrieved into the syringe, preventing puncture wounds to healthcare workers when removing or capping the syringe. A threaded ring allows the needle to be secured during use by rotating the threaded post to connect it to the threaded ring.

[0020] By setting an inner column, the user can push the piston to fit against the arc-shaped block during use, and then rotate the piston to insert the inner column into the side groove, so that the arc-shaped block is located in the side groove. At this time, by rotating the piston again, the arc-shaped block is inserted into the slot. Therefore, by rotating the piston again, the connection between the threaded column and the threaded ring can be achieved, which makes it easy for the user to retract the needle into the syringe and avoid puncture. If the piston rotation resistance is too high, the threaded ring can be rotated in the opposite direction to increase the ease of use through the sealing bearing, thereby achieving the purpose of preventing puncture. By setting a sealing ring, the needle is fitted, and the sealing performance of the syringe is increased.

[0021] By setting up a push block, users can easily push or rotate the piston. By setting up a support plate, users can easily push the piston with the push block, increasing practicality. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the threaded ring structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the card slot structure of this utility model.

[0025] Reference numerals: 100, needle; 200, push rod; 300, piston; 400, needle; 500, protective assembly; 501, outer hole; 502, sealed bearing; 503, threaded ring; 504, threaded column; 505, infusion port; 506, side groove; 507, slot; 508, arc-shaped block; 509, side hole; 510, inner column; 600, sealing ring; 700, push block; 800, support plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present utility model embodiments clearer, the technical solutions of the present utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by those skilled in the art based on the described embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0028] refer to Figures 1-3A puncture-resistant syringe includes: a needle tube 100, a push rod 200 disposed inside the needle tube 100, a piston 300 fixedly mounted at one end of the push rod 200, a needle tip 400 disposed on one side of the needle tube 100, and a protective component 500 disposed on one side of the needle tube 100 for preventing puncture wounds. The protective component 500 is used to safely retrieve the needle tip 400 back into the needle tube 100, preventing puncture wounds to medical personnel during cap removal or cap application. The protective component 500 includes: an outer hole 501. 501 is located on one side of the needle tube 100. A sealed bearing 502 is fixedly installed inside the outer hole 501. A threaded ring 503 is fixedly installed inside the sealed bearing 502. A threaded post 504 is threadedly connected inside the threaded ring 503. An infusion hole 505 is provided on one side of the threaded post 504. The infusion hole 505 is fixedly connected to the needle 400. By setting the threaded ring 503, the threaded post 504 can be rotated to make it threadedly connected to the threaded ring 503 during use, thus fixing the needle 400 for use.

[0029] refer to Figures 1-3 The protective assembly 500 further includes: a side groove 506, which is formed on one side of the piston 300. The side groove 506 has two slots 507 inside. An arc-shaped block 508 is fixedly installed on one side of the threaded post 504. A side hole 509 is formed on one side of the arc-shaped block 508. An inner post 510 is fixedly installed inside the side hole 509. By setting the inner post 510, during use, the user can push the piston 300 to make it fit against the arc-shaped block 508, and then rotate the piston 300 to insert the inner post 510 into the side groove 506, so that the arc-shaped block 508 is located within the side groove 506. Then, by rotating the piston... 300 allows the arc-shaped block 508 to be inserted into the slot 507. Therefore, by rotating the piston 300, the connection between the threaded column 504 and the threaded ring 503 can be achieved, making it easier for the user to retract the needle 400 into the syringe 100 and avoid puncture. If the rotational resistance of the piston 300 is too high, the threaded ring 503 can be rotated in the opposite direction to increase the ease of use through the action of the sealing bearing 502, thereby achieving the purpose of preventing puncture. A sealing ring 600 is fixedly installed inside the threaded ring 503. By setting the sealing ring 600, the needle 400 is fitted, which increases the sealing performance of the syringe.

[0030] refer to Figures 1-3 A push block 700 is fixedly installed on one side of the push rod 200. By setting the push block 700, it is convenient for the user to push or rotate the piston 300. Two support plates 800 are fixedly installed on the outer circular wall of the needle tube 100. By setting the support plates 800, it is convenient for the user to push the piston 300 through the push block 700, thus increasing practicality.

[0031] Working principle: Please refer to Figures 1-3As shown, during use, the user can push or rotate the piston 300 with the pusher 700 to make it fit against the arc-shaped block 508, and then rotate the piston 300 to insert the inner post 510 into the side groove 506, so that the arc-shaped block 508 is located in the side groove 506. At this time, by rotating the piston 300 again, the arc-shaped block 508 is inserted into the slot 507. Therefore, by rotating the piston 300, the connection between the threaded post 504 and the threaded ring 503 can be achieved, which makes it easy for the user to retrieve the needle 400 into the syringe 100. If the rotation resistance of the piston 300 is too large, the threaded ring 503 can also be rotated in the opposite direction to increase the convenience of use through the action of the sealing bearing 502, thereby achieving safe retrieval of the needle 400 into the syringe 100 and avoiding the situation of puncture when medical personnel remove or cap the needle. By setting the sealing ring 600 to cover the needle 400, the sealing performance of the syringe is increased.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that, unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. Terms such as “comprising” or “including” as used in this invention mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as “connection” or “linked” are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as “up,” “down,” “left,” and “right” are used only to indicate relative positional relationships, and the relative positional relationship may also change accordingly when the absolute position of the described object changes.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A puncture-resistant syringe, characterized in that, include: A syringe (100) is provided inside the syringe (100), a push rod (200) is provided inside the syringe (100), a piston (300) is fixedly installed at one end of the push rod (200), and a needle (400) is provided on one side of the syringe (100); A protective component (500) is disposed on one side of the needle tube (100) to prevent puncture wounds; The protective component (500) includes: an outer hole (501) which is opened on one side of the needle tube (100), a sealed bearing (502) which is fixedly installed inside the outer hole (501), a threaded ring (503) which is fixedly installed inside the sealed bearing (502), a threaded post (504) which is threadedly connected inside the threaded ring (503), and an infusion hole (505) which is opened on one side of the threaded post (504) and is fixedly connected to the needle (400); The protective assembly (500) further includes: a side groove (506), which is formed on one side of the piston (300), and two slots (507) are formed inside the side groove (506). An arc-shaped block (508) is fixedly installed on one side of the threaded column (504), and a side hole (509) is formed on one side of the arc-shaped block (508). An inner column (510) is fixedly installed inside the side hole (509).

2. The anti-puncture syringe according to claim 1, characterized in that, A sealing ring (600) is fixedly installed inside the threaded ring (503).

3. The anti-puncture syringe according to claim 1, characterized in that, A push block (700) is fixedly installed on one side of the push rod (200).

4. The anti-puncture syringe according to claim 1, characterized in that, Two support plates (800) are fixedly installed on the outer circular wall of the needle (100).

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