Light-protected syringe

Abstract

This utility model discloses a light-shielding syringe, including a syringe barrel. The syringe barrel is equipped with a light-shielding tube for shielding the drug from light and a push rod for injecting the drug. The light-shielding tube is printed with scale lines. This utility model uses the scale lines on the light-shielding tube to replace the drug volume scale lines on the syringe barrel. By using a scale indicator ring that is on the same horizontal line as the piston, the position of the scale indicator ring indicates the position of the piston inside the syringe barrel. When the push plate is pushed to make the piston squeeze the drug inside the syringe barrel to inject the patient, the position of the scale indicator ring on the light-shielding tube is the injection volume of the drug. Thus, the injection dosage can be clearly specified through the scale indicator ring, making it easy to control the injection volume of the drug without the need for manual estimation, thereby making the drug injection more stable.

Description

Technical Field

[0001] This utility model relates to the field of light-shielding syringe technology, specifically a light-shielding syringe. Background Technology

[0002] A light-shielding syringe is a syringe made with special materials and processes that effectively block ultraviolet and visible light, preventing photosensitive drugs from degrading, deteriorating, or undergoing phototoxic reactions due to light exposure during injection. This ensures the stability and efficacy of the drug. The outer layer of the light-shielding syringe uses a light-shielding material that effectively blocks light in the 290-450 nm wavelength range, with a light transmittance typically below 25%. The inner layer is made of a transparent material. This double-layer structure design prevents the light-shielding agent from contacting the drug solution, avoiding drug contamination. Light-shielding syringes have significant clinical application value, especially in handling photosensitive drugs, effectively ensuring drug stability and patient safety.

[0003] Currently, due to the light-blocking properties of the outer layer, the injection volume of light-shielding syringes cannot be observed when injecting drugs into patients. This makes it impossible to accurately control the injection dosage required for drugs, and only a rough estimate can be made, which is very inconvenient.

[0004] Therefore, a light-shielding syringe was proposed to solve the above problems. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a light-shielding syringe, which aims to solve the problem that existing light-shielding syringes, due to the light-shielding nature of their outer layer, cannot observe the injection volume when injecting drugs into patients, making it impossible to accurately control the injection dosage required for drugs, and only allowing for rough estimation, which is very inconvenient.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A light-shielding syringe includes a syringe, on which a light-shielding tube for shielding a drug from light and a push rod for injecting the drug are mounted. The light-shielding tube is printed with scale lines, and the push rod is equipped with a scale indicator ring that indicates the scale lines on the light-shielding tube.

[0010] As a preferred embodiment of this utility model, an annular groove is formed on the outer ring surface of the syringe, and the light-shielding tube is fitted onto the annular groove on the outer ring surface of the syringe. The inner wall of the light-shielding tube is bonded to the outer surface of the annular groove with an adhesive.

[0011] As a preferred embodiment of this utility model, the scale lines on the outer surface of the light-shielding tube correspond to the actual capacity inside the syringe, and the printing color of the scale lines is different from the light-shielding color of the outer surface of the light-shielding tube.

[0012] As a preferred embodiment of this utility model, a circular push plate is installed at one end of the push rod, and anti-slip texture is provided on the outer ring surface of the push plate. One end of the push rod extends into the interior of the syringe.

[0013] As a preferred embodiment of this utility model, an L-shaped bracket is installed at one end of the top of the push rod, and the scale indicator ring is installed at one end of the L-shaped bracket. The scale indicator ring matches the size of the outer ring surface of the light-shielding tube and is fitted onto the outer ring surface of the light-shielding tube. The inner side of one end of the scale indicator ring is attached to the scale line surface on the light-shielding tube.

[0014] As a preferred embodiment of this utility model, a piston for pushing medicine for injection is installed at one end of the push rod. The piston is located inside the syringe, and the bottom height of the piston is flush with the bottom height of the scale indicator ring.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention replaces the drug volume scale on the syringe with a scale line on the light-shielding tube. The scale indicator ring is positioned on the same horizontal line as the piston, indicating the piston's position inside the syringe. When the push plate is pushed to compress the drug inside the syringe for injection, the position of the scale indicator ring on the light-shielding tube corresponds to the injected drug volume. This allows for clear specification of the drug dosage, facilitating convenient control of the injection volume without the need for manual estimation, thus ensuring more stable drug injection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a light-shielding syringe according to the present invention;

[0019] Figure 2 This is a schematic diagram of the syringe structure of a light-shielding syringe according to the present invention;

[0020] Figure 3 This is a schematic diagram of the light-shielding tube structure of a light-shielding syringe according to the present invention;

[0021] Figure 4 This is a schematic diagram of the push rod and its components of a light-shielding syringe according to the present invention.

[0022] In the diagram: 1. Syringe; 11. Annular groove; 2. Push rod; 21. Push plate; 22. L-shaped bracket; 23. Scale indicator ring; 24. Piston; 3. Light shield; 31. Scale line. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1-4 This embodiment provides a light-shielding syringe, including a syringe 1, a light-shielding tube 3 for shielding the drug from light, and a push rod 2 for injecting the drug. The light-shielding tube 3 has printed scale lines 31, and the push rod 2 has a scale indicator ring 23 that indicates the scale lines 31 on the light-shielding tube 3. The scale lines 31 on the light-shielding tube 3 replace the drug volume scale lines on the syringe 1. When the scale indicator ring 23 and the piston 24 are on the same horizontal line, the position of the scale indicator ring 23 represents the position of the piston 24 inside the syringe 1. When the push plate 21 is pushed to make the piston 24 squeeze the drug inside the syringe 1 to inject the drug into the patient, the position of the scale indicator ring 23 on the light-shielding tube 3 corresponding to the scale line 31 is the injection volume of the drug. Thus, the injection dosage of the drug can be clearly specified through the scale indicator ring 23, so the injection volume of the drug can be easily controlled without the need for manual estimation, thereby making the drug injection more stable.

[0026] In this embodiment, as Figure 1 and Figure 3 As shown, an annular groove 11 is provided on the outer ring surface of the syringe 1. The light shielding tube 3 is fitted onto the annular groove 11 on the outer ring surface of the syringe 1. The inner wall of the light shielding tube 3 is bonded to the outer surface of the annular groove 11 with an adhesive, so that the light shielding tube 3 is more stably installed on the syringe 1 and avoids rotation.

[0027] In this embodiment, as Figure 1 As shown, the scale line 31 on the outer surface of the light shielding tube 3 corresponds to the actual capacity inside the syringe 1. The printing color of the scale line 31 is different from the light shielding color of the outer surface of the light shielding tube 3. The scale line 31 is used to replace the drug capacity indication inside the syringe 1, and the color of the scale line 31 will not mix with the color of the outer surface of the light shielding tube 3, which would make it difficult to see.

[0028] In this embodiment, as Figure 1 , Figure 3 and Figure 4 As shown, an L-shaped bracket 22 is installed at one end of the push rod 2, and a scale indicator ring 23 is installed at one end of the L-shaped bracket 22. The scale indicator ring 23 matches the size of the outer ring surface of the light shielding tube 3 and is fitted onto the outer ring surface of the light shielding tube 3. The inner side of one end of the scale indicator ring 23 is attached to the surface of the scale line 31 on the light shielding tube 3. When the push rod 2 is pushed, the L-shaped bracket 22 will push the scale indicator ring 23 to slide back and forth on the outer ring surface of the light shielding tube 3.

[0029] In this embodiment, as Figure 1 As shown, a piston 24 for pushing the drug for injection is installed at one end of the push rod 2. The piston 24 is located inside the syringe 1. The bottom height of the piston 24 is flush with the bottom height of the scale indicator ring 23. Since the bottom of the piston 24 is in contact with the drug liquid surface, the bottom of the scale indicator ring 23 is at the same height as the drug liquid surface. When the piston 24 pushes the drug liquid for injection, the scale indicator ring 23 drops along with the drug liquid surface. At this time, the volume display on the scale line 31 of the light shield tube 3 corresponding to the scale indicator ring 23 is the injection volume at this time, so as to more accurately control the drug injection dosage.

[0030] Working principle: When using this light-shielding syringe, the syringe 1 first draws out the liquid medicine, and then the air is expelled vertically upwards. At this time, since the bottom of the piston 24 is in contact with the liquid medicine surface, the bottom of the scale indicator ring 23 is at the same height as the liquid medicine surface. When the push rod 2 is pushed, the L-shaped bracket 22 pushes the scale indicator ring 23 to slide back and forth on the outer ring surface of the light-shielding tube 3. When the piston 24 pushes the liquid medicine to inject, the scale indicator ring 23 drops along with the liquid medicine surface. At this time, the volume displayed on the scale line 31 of the light-shielding tube 3 corresponding to the scale indicator ring 23 is the injection volume. This allows for more precise control of the injection dosage and convenient control of the injection volume without the need for manual estimation, thus making the injection more stable.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A light-shielding syringe, comprising a syringe (1), characterized in that: The syringe (1) is equipped with a light-shielding tube (3) for shielding the drug from light and a push rod (2) for pushing the drug into the syringe. The light-shielding tube (3) is printed with scale lines (31), and the push rod (2) is equipped with a scale indicator ring (23) that can indicate the scale lines (31) on the light-shielding tube (3).

2. The light-shielding syringe according to claim 1, characterized in that: The syringe (1) has an annular groove (11) on its outer ring surface. The light-shielding tube (3) is fitted onto the annular groove (11) on the outer ring surface of the syringe (1). The inner wall of the light-shielding tube (3) is bonded to the outer surface of the annular groove (11) with an adhesive.

3. The light-shielding syringe according to claim 1, characterized in that: The scale line (31) on the outer surface of the light-shielding tube (3) corresponds to the actual capacity inside the syringe (1), and the printing color of the scale line (31) is different from the light-shielding color of the outer surface of the light-shielding tube (3).

4. The light-shielding syringe according to claim 1, characterized in that: One end of the push rod (2) is fitted with a circular push plate (21), and the outer ring surface of the push plate (21) is provided with anti-slip texture. One end of the push rod (2) extends into the inside of the syringe (1).

5. A light-shielding syringe according to claim 1, characterized in that: An L-shaped bracket (22) is installed at one end of the push rod (2), and the scale indicator ring (23) is installed at one end of the L-shaped bracket (22). The scale indicator ring (23) matches the outer ring size of the light shielding tube (3) and is fitted on the outer ring surface of the light shielding tube (3). The inner side of one end of the scale indicator ring (23) is attached to the surface of the scale line (31) on the light shielding tube (3).

6. The light-shielding syringe according to claim 1, characterized in that: One end of the push rod (2) is equipped with a piston (24) for pushing the drug for injection. The piston (24) is located inside the syringe (1), and the bottom height of the piston (24) is flush with the bottom height of the scale indicator ring (23).

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