Injector puncture-proof device

Abstract

The utility model provides a syringe puncture-proof device and relates to the technical field of syringes, the syringe puncture-proof device comprises a syringe assembly and a protection assembly, by arranging a needle cylinder, a piston rod, a needle head, a connecting cylinder, a sliding rod, a protection needle cap and a limiting sliding block and forming a sliding way, the problems that when the needle cap is pulled out and inserted, labor is wasted, the inner diameter of an opening of the needle cap is small, and the needle cap cannot be pulled out easily are solved. The problems that when a medical worker inserts a needle head, the needle head is not prone to being aligned with an opening, the needle head is inserted in a deviated mode, fingers are punctured, and unnecessary troubles are caused due to the fact that a split type needle cap possibly falls off and even is lost accidentally are solved. The problem solving process comprises the steps that the protective needle cap is pulled, and a sliding rod and a limiting sliding block are driven to slide; then the rotating limiting sliding block is rotated by 90 degrees under the limitation of the sliding way, the protective needle cap is pressed downwards to be staggered from the needle head, reverse operation is conducted after use, it is guaranteed that the protective needle cap is aligned with the needle head, and personnel stabbing and accidental falling and losing are effectively avoided.

Description

Technical Field

[0001] The present application relates to the field of syringes, and in particular to a syringe puncture prevention device. Background Art

[0002] Syringes are a commonly used medical device. Existing syringes are covered with needle caps to protect the needles to prevent the needles from piercing the sterile packaging bags and being contaminated during storage and transportation. Before using the syringes, medical staff need to remove the needle cap to expose the needles, and after use, they need to put the needle cap back on to protect the needles.

[0003] The needle cap of an existing syringe is usually made into a barrel shape with one end open, and the needle is inserted from the opening of the needle cap. Since the opening of the needle cap needs to be tightly fitted with the outer wall of the needle seat, it is more laborious to remove and insert the needle cap. In addition, the inner diameter of the opening of the needle cap is small, and it is not easy for medical staff to align the opening when inserting the needle, resulting in the needle being inserted off-center and pricking a finger. In addition, the split needle cap may accidentally fall off or even be lost, causing unnecessary trouble. Utility Model Content

[0004] In order to overcome the existing deficiencies, the embodiments of the present application provide a syringe puncture prevention device, which can solve the problems that it is laborious to remove and insert the needle cap, and the inner diameter of the opening of the needle cap is small, making it difficult for medical staff to align the opening when inserting the needle, resulting in the needle being inserted off-center and injuring the fingers, and the split needle cap may accidentally fall off or even be lost, causing unnecessary trouble.

[0005] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0006] A syringe puncture prevention device comprises a syringe component and a protection component.

[0007] The syringe assembly comprises a syringe, a piston rod and a needle. One end of the piston rod is slidably arranged in the syringe, and the needle is arranged at the end of the syringe.

[0008] The protection assembly includes a connecting cylinder, a sliding rod, a protective needle cap and a limiting slider, wherein the connecting cylinder is arranged on the outer side of the syringe, the protective needle cap is sleeved on the outer side of the needle, one end of the sliding rod is fixedly connected to the protective needle cap, the other end of the sliding rod is slidably arranged in the connecting cylinder, the limiting slider is fixedly connected to the sliding rod, the connecting cylinder is provided with a slideway, and the limiting slider is slidably arranged in the slideway.

[0009] In a specific embodiment, two slideways are provided, the slideways are U-shaped, and the connecting tube and the syringe are axially aligned.

[0010] In a specific embodiment, the slideway length dimension is greater than the protective needle cap length dimension.

[0011] In a specific embodiment, the sliding rod is L-shaped, and a reinforcing block is provided between the sliding rod and the protective needle cap.

[0012] In a specific embodiment, connecting blocks are provided at both ends of the connecting tube, and the connecting tube is fixedly connected to the syringe via the connecting blocks.

[0013] In a specific embodiment, elastic blocks are symmetrically arranged in the slideway.

[0014] In a specific embodiment, a protrusion is provided at the end of the syringe, and the protective needle cap is sleeved on the outside of the protrusion.

[0015] In a specific embodiment, the outer side of the protective needle cap is provided with anti-slip grooves.

[0016] The advantages of the embodiments of the present application are: by arranging a syringe, a piston rod, a needle, a connecting cylinder, a sliding rod, a protective needle cap and a limiting slider, and opening a slideway, the problem that it is more laborious to pull out and insert the needle cap is solved, and the inner diameter of the opening of the needle cap is small, and it is not easy for medical staff to align the opening when inserting the needle, resulting in the needle being inserted off-center and pricking the fingers, and the split needle cap may accidentally fall off or even be lost, causing unnecessary trouble. In the problem solving process, the protective needle cap is pulled out to drive the sliding rod and the limiting slider to slide, and then the limiting slider is rotated ninety degrees under the restriction of the slideway, and then the protective needle cap is pressed down, so that the protective needle cap is staggered with the needle. After use, the reverse operation is performed to ensure that the protective needle cap is aligned with the needle, effectively avoiding stabbing injuries to people and accidental dropping and loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the syringe anti-puncture device provided in the embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of a syringe assembly provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the syringe structure provided in the embodiment of the present application;

[0020] Figure 4 A schematic diagram of the connecting tube structure provided in the embodiment of the present application;

[0021] Figure 5 An enlarged structural schematic diagram of A is provided for an embodiment of the present application;

[0022] Figure 6 A schematic diagram of the sliding rod structure provided in an embodiment of the present application.

[0023] In the figure: 100-syringe assembly; 110-syringe barrel; 112-bump; 120-piston rod; 130-needle; 200-protective assembly; 210-connecting barrel; 211-slideway; 212-connecting block; 213-elastic block; 220-sliding rod; 222-reinforcement block; 240-protective needle cap; 241-anti-slip groove; 250-limiting slider. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with embodiments.

[0025] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] In the examples, unless otherwise specified, all the means used are conventional means in the art.

[0027] See also Figure 1-Figure 6 A syringe anti-puncture device includes a syringe component 100 and a protection component 200.

[0028] See also Figure 1 , 2 3. The syringe assembly 100 includes a syringe barrel 110, a piston rod 120 and a needle 130. One end of the piston rod 120 is slidably disposed in the syringe barrel 110, and the needle 130 is disposed at the end of the syringe barrel 110.

[0029] In a specific embodiment, a protrusion 112 is provided at the end of the syringe 110, and the protective needle cap 240 is clamped on the outside of the protrusion 112. By providing the protrusion 112, the bottom end of the protective needle cap 240 can be clamped on the protrusion 112 to protect the needle 130.

[0030] See also Figure 1 , 2 , 4, 5 and 6, the protection component 200 includes a connecting cylinder 210, a sliding rod 220, a protective needle cap 240 and a limiting slider 250, the connecting cylinder 210 is arranged on the outside of the syringe 110, the protective needle cap 240 is sleeved on the outside of the needle 130, one end of the sliding rod 220 is fixedly connected to the protective needle cap 240, and the other end of the sliding rod 220 is slidably arranged in the connecting cylinder 210, the limiting slider 250 is fixedly connected to the sliding rod 220, the connecting cylinder 210 is provided with a slideway 211, and the limiting slider 250 is slidably arranged in the slideway 211.

[0031] There are two slideways 211 , which are U-shaped. The connecting tube 210 and the syringe 110 have the same axial direction. The connecting tube 210 with the same axial direction is provided to ensure that the sliding rod 220 can be used normally.

[0032] It should be noted that the length of the slide 211 is greater than the length of the protective needle cap 240, which is used to ensure that when the limiting slider 250 slides in the slide 211, it can drive the protective needle cap 240 to separate from the needle 130, and the top of the protective needle cap 240 can be lower than the bottom of the needle 130.

[0033] In a specific embodiment, the sliding rod 220 is L-shaped, and a reinforcing block 222 is provided between the sliding rod 220 and the protective needle cap 240 . The reinforcing block 222 is provided to strengthen the firmness of the connection between the sliding rod 220 and the protective needle cap 240 .

[0034] In a specific embodiment, connecting blocks 212 are provided at both ends of the connecting tube 210 , and the connecting tube 210 is fixedly connected to the syringe 110 via the connecting blocks 212 .

[0035] Among them, elastic blocks 213 are symmetrically arranged in the slideway 211. By arranging the elastic blocks 213, when the limiting slider 250 slides to the bottom of the slideway 211, the sliding of the limiting slider 250 is limited to prevent easy sliding in non-human circumstances.

[0036] In a specific embodiment, the outer side of the protective needle cap 240 is provided with anti-slip grooves 241. By providing the anti-slip grooves 241, when it is needed, it is convenient for the doctor to pinch the anti-slip grooves 241 to pull out the protective needle cap 240 and remove the protective needle cap 240.

[0037] The working principle of the syringe anti-puncture device is as follows: when in use, the doctor can conveniently pinch the anti-slip pattern 241 to pull out the protective needle cap 240, separate the protective needle cap 240 from the needle 130, and the protective needle cap 240 drives the sliding rod 220 and the limiting slider 250 to slide, and the limiting slider 250 slides along the slideway 211. When the top of the slideway 211 is moved, the protective needle cap 240 just leaves the needle 130, and the protective needle cap 240 is rotated to drive the sliding rod 220 and the limiting slider 250 to rotate, and the limiting slider 250 rotates to another track in the U-shaped slideway 211, and then the protective needle cap 240 is pressed down so that the limiting slider 250 passes over the elastic block 2 13 is moved to the bottom of the slide 211, and the injection molding machine can be used normally. After use, the protective needle cap 240 is pulled out in the same way to drive the sliding rod 220 and the limiting slider 250 to slide, and then the limiting slider 250 is rotated back to the other path of the slide 211 in the opposite direction, and the angle is just right to make the protective needle cap 240 align with the needle head 130, and then the protective needle cap 240 is pressed and clamped on the protrusion 112, thereby ensuring that the protective needle cap 240 is aligned with the needle head 130 for protection, which effectively avoids pricking fingers. At the same time, it is connected to the syringe 110 to avoid the possibility of falling or even losing when separated, and the installation is more reliable.

[0038] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A syringe puncture prevention device, characterized in that: include A syringe assembly (100), the syringe assembly (100) comprising a syringe (110), a piston rod (120) and a needle (130), one end of the piston rod (120) being slidably disposed in the syringe (110), and the needle (130) being disposed at the end of the syringe (110); A protection component (200), the protection component (200) comprising a connecting cylinder (210), a sliding rod (220), a protective needle cap (240) and a limiting slider (250), the connecting cylinder (210) being arranged on the outside of the syringe (110), the protective needle cap (240) being sleeved on the outside of the needle (130), one end of the sliding rod (220) being fixedly connected to the protective needle cap (240), the other end of the sliding rod (220) being slidably arranged in the connecting cylinder (210), the limiting slider (250) being fixedly connected to the sliding rod (220), the connecting cylinder (210) being provided with a slideway (211), the limiting slider (250) being slidably arranged in the slideway (211).

2. A syringe puncture prevention device according to claim 1, characterized in that: The slideways (211) are provided with two of them, and the slideways (211) are U-shaped. The connecting tube (210) and the needle tube (110) are axially aligned in the same direction.

3. A syringe puncture prevention device according to claim 1, characterized in that: The length dimension of the slideway (211) is greater than the length dimension of the protective needle cap (240).

4. A syringe puncture prevention device according to claim 1, characterized in that: The sliding rod (220) is L-shaped, and a reinforcing block (222) is provided between the sliding rod (220) and the protective needle cap (240).

5. The syringe puncture prevention device according to claim 1, characterized in that: Connecting blocks (212) are provided at both ends of the connecting tube (210), and the connecting tube (210) is fixedly connected to the syringe (110) via the connecting blocks (212).

6. A syringe puncture prevention device according to claim 1, characterized in that: Elastic blocks (213) are symmetrically arranged in the slideway (211).

7. A syringe puncture prevention device according to claim 1, characterized in that: The end of the syringe (110) is provided with a protrusion (112), and the protective needle cap (240) is sleeved on the outside of the protrusion (112).

8. The syringe puncture prevention device according to claim 1, characterized in that: The outer side of the protective needle cap (240) is provided with anti-slip grooves (241).

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