Injection needle convenient to destroy

Abstract

The utility model discloses an injection needle convenient to destroy, which belongs to the technical field of injection needles and comprises a needle cylinder, a needle head is mounted at the bottom of the needle cylinder, a piston block is slidably mounted in the needle cylinder, a push rod is fixed at the top of the piston block, push plates are fixed at the top end of the push rod, and the push plates are symmetrically arranged on the outer side of the needle cylinder. And fixing shells are symmetrically fixed to the outer side of the needle cylinder, the fixing shells are horizontally aligned with the pressing grooves, and conical rods are installed on the outer sides of the fixing shells in a penetrating mode. Through cooperative use of the needle cylinder, the needle head, the piston block, the push rod, the push plate, the pressing groove, the fixing shell, a conical rod, a conical ring, an anti-falling ring, a pressing block, a side plate and a fixing opening, the outer side of the needle cylinder can be damaged while the piston block is limited to prevent the piston block and the push rod from being normally used in a drawing mode; the probability of secondary use is greatly reduced through the double damage effect, the operation steps are simple, and therefore convenience is brought to use of workers.

Description

Technical Field

[0001] The utility model relates to the technical field of injection needles, in particular to an injection needle which is easy to destroy. Background Art

[0002] As we all know, syringes, also known as needles, are commonly used in the medical field. They are basically composed of a sleeve, a rubber stopper, and a core rod. The rubber stopper is placed on the head of the core rod to form the core rod, which is installed in the inner cavity of the sleeve. The needle is mainly used to extract or inject liquid. Existing disposable needles generally need to be destroyed after use to prevent secondary use. After use, the needle is usually broken off to achieve the purpose of destroying the syringe.

[0003] For example, the utility model with application number 202222682382.3 discloses an injection needle that is easy to destroy. The injection needle that is easy to destroy can provide a limiting effect on the limiting ring inside the limiting groove through the mutual cooperation of the clamping block and the annular clamping groove, so that the limiting ring will not separate from the limiting groove, and then fix the position of the pressing plate, so that the pressing plate cannot be pulled, thereby destroying the structure and preventing the structure from being used twice. When destroying the structure, there is no need to pull out the push rod again, which is simple to operate, highly practical, and saves labor.

[0004] Similar to the above application, there are still some deficiencies:

[0005] This type of easy-to-destroy injection needle uses a spring and a block to limit the injection needle push rod. Although it can prevent the push rod from being pulled out again and becoming unusable, the use of components such as springs increases the complexity and precision of the injection needle, increases the processing difficulty and production cost, and cannot completely destroy the syringe barrel, so it may still be reused, which is very harmful.

[0006] For this reason, a kind of injection needle that is easy to destroy is designed to optimize the above-mentioned problem. Utility Model Content

[0007] The main purpose of the present invention is to provide an injection needle that is easy to destroy, so as to solve the related technical problems raised in the above background technology.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A syringe that is easy to destroy comprises a syringe, a needle is installed at the bottom of the syringe, a piston block is slidably installed inside the syringe, a push rod is fixed on the top of the piston block, a push plate is fixed on the top of the push rod, push plates are symmetrically provided on the outside of the syringe, a fixed shell is symmetrically fixed on the outside of the syringe, and the fixed shell is horizontally aligned with a pressing groove, a tapered rod is installed through the outside of the fixed shell, a tapered ring and an anti-slip ring are respectively fixed on the outside of the tapered rod, and the anti-slip ring is located inside the fixed shell, a fixing port is provided on the outside of the fixed shell, a pressing block is fixed at one end of the tapered rod, and a protective component is provided on the top of the syringe.

[0010] Preferably, the protective component includes a film and through holes, the film is located on the inner side wall of the top of the syringe, and the top of the film is evenly provided with through holes.

[0011] Preferably, a side plate is fixed to the outer side of the syringe, and an anti-slip layer is provided on the outer side of the side plate.

[0012] Preferably, a protective pad is fixed to the outer side of the pressing block, and the protective pad is a rubber protective pad.

[0013] Preferably, the conical ring is an elastic ring, and the maximum diameter of the conical ring at one end close to the pressing block is larger than the diameter of the fixing opening.

[0014] Preferably, the outer side of the bottom end of the syringe is evenly provided with protective grooves, and the interior of the protective grooves is provided with anti-slip grooves.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides an injection needle that is easy to destroy. Through the coordinated use of the syringe, needle, piston block, push rod, push plate, pressing groove, fixing shell, tapered rod, tapered ring, anti-slip ring, pressing block, side plate and fixing port, the outer side of the syringe can be destroyed while limiting the piston block to prevent the piston block and push rod from being pulled out for normal use. The double destruction effect greatly reduces the probability of secondary use, and the operation steps are simple, thereby bringing convenience to the staff.

[0017] By cooperating with the film and the through hole, when the push plate is pulled outward for the first time, the push rod is driven to move outward, and the push rod pushes the film and causes the film to rupture. When the needle is used for the second time, it can be judged by observing whether the film is ruptured, thereby reducing the problem of misoperation by medical staff and thus improving the safety of the easily disposable injection needle during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front sectional view of the present utility model;

[0019] Figure 2 For the utility model Figure 1 A magnified view of the structure at center A;

[0020] Figure 3 For the utility model Figure 1 A magnified view of the structure at point B in the middle;

[0021] Figure 4 It is a schematic diagram of the film of the present utility model.

[0022] In the figure: 1. syringe; 2. needle; 3. piston block; 4. push rod; 5. push plate; 6. pressing groove; 7. fixing shell; 8. tapered rod; 9. tapered ring; 10. anti-slip ring; 11. pressing block; 12. side plate; 13. protective component; 14. film; 15. through hole; 16. fixing port. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0024] Example 1

[0025] like Figures 1-4 As shown, this embodiment provides an injection needle that is easy to destroy, including a syringe 1, a needle 2 is installed at the bottom of the syringe 1, a piston block 3 is slidably installed inside the syringe 1, a push rod 4 is fixed to the top of the piston block 3, and a push plate 5 is fixed to the top of the push rod 4. The outer side of the syringe 1 is symmetrically provided with a push plate 5, and a fixed shell 7 is symmetrically fixed to the outer side of the syringe 1, and the fixed shell 7 is horizontally aligned with the pressing groove 6. A tapered rod 8 is installed through the outer side of the fixed shell 7, and a tapered ring 9 and an anti-slip ring 10 are respectively fixed to the outer side of the tapered rod 8, and the anti-slip ring 10 is located inside the fixed shell 7. A fixing port 16 is provided on the outer side of the fixed shell 7, and a pressing block 11 is fixed to one end of the tapered rod 8. A protective component 13 is provided on the top of the syringe 1, and the protective component 13 includes a film 14 and a through hole 15. The film 14 is located on the inner side wall of the top of the syringe 1, and the top of the film 14 is evenly provided with through holes 15.

[0026] When the syringe 1 is in use, the needle 1 is pushed outwards and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle 1 is pushed inwards, and the needle

[0027] Example 2

[0028] In this embodiment, if Figures 1-4 As shown, a side plate 12 is fixed to the outer side of the syringe 1 , and an anti-slip layer is provided on the outer side of the side plate 12 .

[0029] The side panels 12 and the outer anti-slip layer further increase the friction on the outer side of the side panels 12 , bringing convenience to people's use.

[0030] In this embodiment, a protective pad is fixed to the outer side of the pressing block 11 , and the protective pad is a rubber protective pad.

[0031] The provision of the rubber protective pad protects the fingers during the use of the pressing block 11 , improves the softness and comfort of the pressing block 11 , and facilitates the pressing work.

[0032] In this embodiment, the conical ring 9 is an elastic ring, and the maximum diameter of the end of the conical ring 9 close to the pressing block 11 is larger than the diameter of the fixing opening 16 .

[0033] The tapered ring 9 made of elastic material makes it easier for the tapered ring 9 to be pushed into the interior of the fixed shell 7 through the fixing opening 16 , which saves more effort.

[0034] In this embodiment, the outer side of the bottom end of the syringe 1 is evenly provided with protective grooves, and the interior of the protective grooves is provided with anti-slip grooves.

[0035] By providing the protective groove and the anti-slip groove, the medical staff's fingers increase the friction with the outer side of the end of the syringe 1, making it easier to extract the medicine.

[0036] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present invention within the scope disclosed by the present invention, which falls within the protection scope of the present invention.

Claims

1. A syringe needle that is easy to destroy, characterized by: The invention comprises a syringe (1), a needle (2) is installed at the bottom of the syringe (1), a piston block (3) is slidably installed inside the syringe (1), a push rod (4) is fixed on the top of the piston block (3), a push plate (5) is fixed on the top of the push rod (4), a push plate (5) is symmetrically provided on the outside of the syringe (1), a fixed shell (7) is symmetrically fixed on the outside of the syringe (1), and the fixed shell (7) is horizontally aligned with the pressing groove (6), a cone rod (8) is installed through the outside of the fixed shell (7), a cone ring (9) and an anti-slip ring (10) are respectively fixed on the outside of the cone rod (8), and the anti-slip ring (10) is located inside the fixed shell (7), a fixing port (16) is provided on the outside of the fixed shell (7), a pressing block (11) is fixed at one end of the cone rod (8), and a protective component (13) is provided on the top of the syringe (1).

2. The easily destroyable injection needle according to claim 1, characterized in that: The protective component (13) includes a film (14) and a through hole (15). The film (14) is located on the inner side wall of the top of the syringe (1), and the top of the film (14) is evenly provided with through holes (15).

3. The easily destroyable injection needle according to claim 1, characterized in that: A side plate (12) is fixed to the outer side of the needle cylinder (1), and an anti-slip layer is provided on the outer side of the side plate (12).

4. The easily destroyable injection needle according to claim 1, characterized in that: A protective pad is fixed on the outer side of the pressing block (11), and the protective pad is a rubber protective pad.

5. The easily destroyable injection needle according to claim 1, characterized in that: The conical ring (9) is an elastic ring, and the maximum diameter of the end of the conical ring (9) close to the pressing block (11) is larger than the diameter of the fixing port (16).

6. The easily destroyable injection needle according to claim 1, characterized in that: The outer side of the bottom end of the syringe (1) is evenly provided with protective grooves, and the interior of the protective grooves is provided with anti-slip grooves.

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