Auxiliary device for avoiding light of injection needle cylinder

Abstract

The utility model discloses an injection needle cylinder light-shielding auxiliary device which comprises a light-shielding cylinder, a mounting cavity is formed in the light-shielding cylinder and used for mounting and inserting an injection cylinder, the upper portion of the outer side of the light-shielding cylinder is fixedly connected with two fixing plates, the two fixing plates are oppositely arranged, placing cavities are formed in the two fixing plates, and the placing cavities are communicated with the light-shielding cylinder. A sliding cavity is formed in the barrel wall of the shading barrel and used for allowing a piston block to slide, the top end of the piston block is fixedly connected with one end of a push rod, and the other end of the push rod penetrates through the shading barrel and the fixing plate to be in threaded connection with one side of a push plate. The syringe is placed in the mounting cavity of the shading cylinder, the pressing plate is matched to press the boosting wing, the syringe can be rapidly fixed, the shading effect is achieved, meanwhile, through connection of the push rod and the push plate, when the syringe is used, the specific position of the piston block in the movable cavity can be observed through the transparent scale window, and the operation is convenient. And the injection dosage of the syringe can be known.

Description

Technical Field

[0001] The utility model relates to the technical field of light-shielding for injection syringes, in particular to a light-shielding auxiliary device for injection syringes. Background Art

[0002] In the process of clinical medication, some drugs (such as sodium nitroprusside, nifedipine, dexamethasone, nimodium, water-soluble vitamins, etc.) are unstable to light. If they are used improperly, they will undergo a certain degree of degradation and polymerization reaction, and the appearance may change color, become turbid, darken, or even precipitate. If the light-proof effect is not ideal, it will cause the efficacy of the drug to decrease or even produce toxic substances, so it is necessary to use it in a dark place during injection and dispensing.

[0003] Most of the existing light-shielding auxiliary devices use black tape wrapped around the injection syringe to simply shield the medicine inside the syringe. Wrapping the black tape not only wastes time but also blocks the scale lines on the surface of the syringe, causing the doctor to be unable to grasp the injection amount during the injection.

[0004] To this end, we propose a light-shielding auxiliary device for injection syringes. Utility Model Content

[0005] The main purpose of the utility model is to provide a light-shielding auxiliary device for injection syringes. By placing the injection syringe in the installation cavity of the light-shielding cylinder and cooperating with the pressing plate to press the booster wing, the injection syringe can be quickly fixed and the light-shielding effect can be achieved. At the same time, through the connection between the push rod and the push plate, when the syringe is in use, the specific position of the piston block in the active cavity can be observed through the transparent scale window, and the injection amount of the injection syringe can be known, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A light shielding auxiliary device for an injection syringe comprises a light shielding cylinder, wherein an installation cavity is provided inside the light shielding cylinder, wherein the installation cavity is used for installing and inserting the injection syringe, and a fixing plate is fixedly connected to the upper outer portion of the light shielding cylinder, wherein the fixing plate is provided at two locations opposite to each other, and a placement cavity is provided inside the two fixing plates;

[0008] A sliding cavity is provided inside the wall of the shading tube for sliding of the piston block. The top end of the piston block is fixedly connected to one end of the push rod, and the other end of the push rod passes through the shading tube and the fixed plate and is threadedly connected to one side of the push plate.

[0009] Furthermore, a transparent scale window is provided on the outer side of the light-shielding tube at the sliding cavity, and an exhaust port is also provided inside the tube wall of the light-shielding tube, and the interior of the exhaust port is communicated with the interior of the sliding cavity.

[0010] Furthermore, the placement cavity is used for installing and placing the booster wing, and a pressing plate is movably installed inside the two fixing plates, and one side of the pressing plate is tightly fitted with one side of the booster wing.

[0011] Furthermore, a central portion of one side of the push plate is fixedly connected to one end of the injection rod, and the other end of the injection rod is movably mounted inside the injection barrel.

[0012] Furthermore, a through hole is provided inside the booster wing, and the through hole is used for the push rod to pass through. A threaded hole is provided on one side of the push plate close to the injection rod, and the threaded hole is threadedly adapted to one end of the push rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects: by placing the syringe barrel in the installation cavity of the light-shielding barrel and cooperating with the pressing plate to press the booster wing, the syringe barrel can be quickly fixed and the light-shielding effect can be achieved; at the same time, through the connection between the push rod and the push plate, when the syringe is in use, the specific position of the piston block in the active cavity can be observed through the transparent scale window, thereby knowing the injection amount of the syringe barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of a light-shielding auxiliary device for an injection syringe.

[0015] Figure 2 The utility model is a schematic diagram of the three-dimensional structure of the injection cylinder of the light-shielding auxiliary device for the injection cylinder.

[0016] Figure 3 The utility model is a schematic diagram of the planar structure of a light-shielding auxiliary device for an injection syringe.

[0017] In the figure: 1. light-shielding tube; 2. placement cavity; 3. installation cavity; 4. push rod; 5. fixing plate; 6. piston block; 7. transparent scale window; 8. exhaust port; 9. push plate; 10. injection rod; 11. perforation; 12. booster wing; 13. injection cylinder; 14. pressing plate; 15. sliding cavity; 16. threaded hole. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1 , Figure 2 , Figure 3As shown, a light shielding auxiliary device for an injection syringe comprises a light shielding tube 1, wherein a mounting cavity 3 is provided inside the light shielding tube 1, wherein the mounting cavity 3 is used for installing and inserting an injection tube 13, wherein a fixing plate 5 is fixedly connected to the upper outer portion of the light shielding tube 1, wherein the fixing plate 5 is provided at two locations opposite to each other, wherein the inside of the fixing plate 5 at the two locations has a placement cavity 2;

[0020] A sliding cavity 15 is provided inside the wall of the light-shielding cylinder 1, and the sliding cavity 15 is used for the piston block 6 to slide. The top end of the piston block 6 is fixedly connected to one end of the push rod 4, and the other end of the push rod 4 passes through the light-shielding cylinder 1 and the fixed plate 5 and is threadedly connected to one side of the push plate 9. When the push rod 4 is fixedly connected to the push plate 9, the position of the piston block 6 is just parallel to the end of the injection rod 10 away from the push plate 9, and the length of the push rod 4 is longer than the length of the light-shielding cylinder 1;

[0021] The outer side of the light-shielding tube 1 is provided with a transparent scale window 7 at the sliding cavity 15, and the inner wall of the light-shielding tube 1 is also provided with an exhaust port 8, the function of the exhaust port 8 is to discharge the air in the sliding cavity 15 from the exhaust port 8 when the piston block 6 slides, and the sliding cavity 15 can also be injected with a suitable lubricant through the exhaust port 8 to facilitate the sliding of the piston block 6, and the interior of the exhaust port 8 is connected with the interior of the sliding cavity 15; the placement cavity 2 is used for the installation and placement of the booster wing 12, and the interiors of the two fixed plates 5 are movably provided with a pressing plate 14, one side of the pressing plate 14 is tightly fitted with one side of the booster wing 12, and the pressing plate 14 can be provided with a limit block to avoid separation from the fixed plate 5, and one of the pressing plates 14 is provided with a groove for the push rod 4 to pass through;

[0022] The center portion of one side of the push plate 9 is fixedly connected to one end of the injection rod 10, and the other end of the injection rod 10 is movably installed inside the injection barrel 13; a through hole 11 is opened inside the booster wing 12, and the through hole 11 is used for the push rod 4 to pass through; a threaded hole 16 is opened on one side of the push plate 9 close to the injection rod 10, and the threaded hole 16 is threadedly adapted to one end of the push rod 4.

[0023] It should be noted that the utility model is a light-shielding auxiliary device for an injection syringe. First, the injection barrel 13 is inserted into the installation cavity 3 in the light-shielding barrel 1, and the booster wing 12 is also placed in the placement cavity 2 in the fixing plate 5. At the same time, one end of the push rod 4 is passed through the through hole 11 of the booster wing 12, and then the pressing plate 14 is also slid into the placement cavity 2 to press the booster wing 12, and then the injection barrel 13 is fixed, and then one end of the push rod 4 is threadedly connected to the threaded hole 16 of the push plate 9. In this way, the light-shielding effect of the injection barrel 13 is completed, and the drug can be extracted and injected into the patient's body. The injection amount can be observed through the transparent scale window 7 to observe the specific position of the piston block 6 in the sliding cavity 15.

[0024] The above shows and describes the basic principle and main features of the utility model and the 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 descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which 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 light shielding auxiliary device for an injection syringe, comprising a light shielding cylinder (1), characterized in that: The light-shielding tube (1) has an installation cavity (3) formed inside, and the installation cavity (3) is used for installing and inserting the injection tube (13). A fixing plate (5) is fixedly connected to the upper outer portion of the light-shielding tube (1). The fixing plates (5) are provided at two locations opposite to each other, and placement cavities (2) are formed inside the two fixing plates (5). A sliding cavity (15) is provided inside the wall of the light-shielding tube (1), and the sliding cavity (15) is used for the piston block (6) to slide. The top end of the piston block (6) is fixedly connected to one end of the push rod (4), and the other end of the push rod (4) passes through the light-shielding tube (1) and the fixed plate (5) and is threadedly connected to one side of the push plate (9).

2. The light-shielding auxiliary device for an injection syringe according to claim 1, characterized in that: A transparent scale window (7) is provided on the outside of the light-shielding tube (1) at the sliding cavity (15), and an exhaust port (8) is also provided inside the tube wall of the light-shielding tube (1), and the interior of the exhaust port (8) is connected to the interior of the sliding cavity (15).

3. The light-shielding auxiliary device for an injection syringe according to claim 1, characterized in that: The placement cavity (2) is used for installing and placing the booster wing (12), and a pressing plate (14) is movably installed inside the two fixing plates (5), and one side of the pressing plate (14) is tightly fitted with one side of the booster wing (12).

4. The light-shielding auxiliary device for injection syringes according to claim 1, characterized in that: The central portion of one side of the push plate (9) is fixedly connected to one end of the injection rod (10), and the other end of the injection rod (10) is movably installed inside the injection cylinder (13).

5. The light-shielding auxiliary device for injection syringes according to claim 3, characterized in that: The booster wing (12) is provided with a through hole (11) inside, and the through hole (11) is used for the push rod (4) to pass through. The push plate (9) is provided with a threaded hole (16) on one side close to the injection rod (10), and the threaded hole (16) is threadably matched with one end of the push rod (4).

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