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a syringe

A technology of syringes and syringes, applied in the field of syringes, can solve problems such as air embolism, achieve the effects of improving precision, improving precise control, and simplifying production difficulty

Active Publication Date: 2019-11-12
PANZHIHUA JIUDINGZHIYUAN INTPROP OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Injecting gas into a blood vessel can cause an air embolism

Method used

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  • a syringe
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, the present invention discloses a syringe, comprising a syringe 1, an injection plug 2, and an injection needle 3; to pierce the needle-like portion 31 of the sealing portion 13 .

[0033] The sealing part 13 is a thin film integrally formed with the syringe 1 . The film is integrally formed, with better sealing, lower cost, disposable characteristics, and completely anti-bacterial. The injection needle 3 includes a connection portion and an injection portion 33 , the connection portion is located at the connection end of the injection needle 3 , and the connection portion includes a sleeve portion 32 and the needle portion 31 . The injection needle 3 can use its needle-like part 31 to pierce the sealing part 13 to ensure the normal use of the syringe. The design of the sleeve-like part 32 can improve the reliability of the connection between the needle and the syringe.

[0034] The syringe 1 includes a cylinder body 11, the injection plug ...

Embodiment 2

[0040] Such as figure 2 As shown, the sealing part 13 is cylindrical, and the sealing part 13 is composed of a silica gel layer 131, a braided layer 132, and a non-toxic rubber layer 133 from inside to outside, and the non-toxic rubber layer 133 is glued to the inner wall of the injection port of the injection cylinder 1; The braided layer 132 is braided by 5-12 parts of bamboo fiber, 8-16 parts of chopped glass fiber and 3-7 parts of activated carbon fiber. The structure of the sealing part 13 has a small stable structure, good elasticity, and strong resilience. After being punctured by the needle-like part 31, it can be quickly restored, thereby preventing bacteria from entering and causing pollution. Its elasticity is stronger than that used in existing medical equipment. Sterile rubber. The braided layer 132 can stabilize the silicone layer 131 and improve the integrity of the connection between the silicone layer 131 and the non-toxic rubber layer 133 . The silica gel ...

Embodiment 3

[0042] The making method of the sealing part 13 in embodiment 1 or 2 is:

[0043] Step 1: Heat the materials for making the silica gel layer 131 to 150-180°C and keep for 4-6 minutes to melt part of the materials into a gel, stir the materials for making the silica gel layer 131 evenly, and then put them into a mold to condense into a cylinder Shaped silicone rod;

[0044] Step 2: Weave a 0.5-0.7mm braided layer 132 on the outside of the silicone rod, and make the braided layer 132 have a mesh of 40-50 meshes, and then vulcanize the silicone rod with the braided layer 132 at a temperature of 91-102°C 4-7min, the braided layer 132 is fused with the silica gel rod;

[0045] Step 3: extruding semi-molten non-toxic rubber on the outer layer of the braided layer 132 with a pressure of 100-120kpa to form a non-toxic rubber layer 133 of 0.2-0.4mm, and making the first product of the sealing part 13;

[0046] Step 4: Put the initial product of the sealing part 13 into a zero-degree ...

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Abstract

The invention relates to the field of injection equipment, in particular to a syringe. The syringe comprises a syringe canister, a syringe piston and an entry needle; the injection port of the syringe canister is provided with a sealing part, and the connecting end of the entry needle is provided with an acicular part used for piercing the sealing part. The arrangement of the sealing part and the entry needle corresponding to the sealing part can prevent the syringe from being polluted at the mouth portion of the syringe by bacteria and improve the anti-bacteria and sterilization effect. The structure can make it convenient to produce the syringe and the entry needle separately, and accordingly the production difficulty is reduced. The sealing part is thin film integrally shaped with the syringe canister. The thin film is integrally shaped, better in leakproofness and lower in cost, and can prevent the bacteria completely with the characteristic of being disposable. Through control over resistance of push of a limiting rod, the push speed of the piston is effectively reduced, the precise control over added quantity of the syringe is improved, and the lower the push speed is, the preciser the added quantity control is.

Description

technical field [0001] The invention relates to the field of injection equipment, in particular to a syringe. Background technique [0002] Syringes are also used in medical equipment, containers, and scientific instruments such as some chromatography to inject through a rubber septum. Injecting gas into a blood vessel can cause an air embolism. The way to remove air from the syringe to avoid embolism is to invert the syringe, tap it gently, and squeeze out a little fluid before injecting into the bloodstream. In some occasions where accuracy is not the primary consideration for germs, such as quantitative chemical analysis, glass syringes are still used because of their small errors and smooth push rod movement. You can also use a syringe to inject some of the juices into meat while cooking to improve flavor and texture, or into pastries when baking. A syringe can also fill ink into the cartridge. [0003] Since the current syringes have very strict requirements on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/178A61M5/31A61M5/315F16J15/10B29D99/00C08L7/00C08K13/02C08K3/36C08K3/34C08K5/053C08K5/20
CPCA61M5/178A61M5/3129A61M5/31533A61M5/31535A61M5/31548A61M2005/312B29D99/0053C08K2201/011C08L7/00C08L2205/035F16J15/102C08L71/02C08K13/02C08K3/36C08K3/34C08K5/053C08K5/20
Inventor 吕露
Owner PANZHIHUA JIUDINGZHIYUAN INTPROP OPERATION CO LTD
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