a disposable syringe

Abstract

The invention discloses a disposable syringe, and in particular relates to a safe and environment-friendly syringe which can realize the precise liquid taking rapidly, and also can degrade. The syringe comprises a sleeve, a push rod, a rubber plug, a rubber plug bushing and an injection needle, wherein a plurality of inversely-buckling clamping positions are uniformly distributed around the head of the push rod, the head of the push rod is inserted into a bushing inner cavity in an anti-skidding raised bar of the rubber plug bushing, the inversely-buckling clamping positions of the head completely slide over anti-skidding clamping positions of the bushing inner cavity, quantifying grooves are uniformly distributed in the push rod, and an elastic quantifying column fixed to the sleeve can extend into the quantifying grooves. For the disposable syringe, only one seal ring is needed, thus the problem that for the traditional syringe, two or three seal rings are adopted for improving the sealing property, so that the sliding property is reduced, is solved, the use convenience is improved, meanwhile, through the structural design of limited quantifying, the problem that the errors are great due to subjective liquid taking is solved, thus the liquid taking precision is promoted, and the use safety is promoted; the sleeve and the rubber plug of the syringe are prepared by adopting a non-toxic degradable material, thus the pollution to the environment is reduced, and the safety of the product is further promoted.

Description

technical field [0001] The invention relates to a disposable syringe. Background technique [0002] The commonly used syringes in the medical field are basically composed of a jacket, a rubber plug and a core rod. The rubber plug is set on the head of the core rod to form a push rod. In a sealed state, the syringe does not leak when it sucks or injects the medicine. In order to ensure complete sealing and no leakage, the rubber stopper of the syringe used in clinical practice is too tightly matched with the inner cavity of the jacket, which causes the medical staff to not only increase the labor intensity and time-consuming when sucking and injecting the medicinal solution; During the use of the syringe, the amount of medicine taken is controlled by artificially observing the scale on the syringe jacket, so the error of taking the liquid is relatively large; therefore, in order to improve the convenience of use and the accuracy of taking the liquid, the traditional syringe ...

AI Technical Summary

Problems solved by technology

In order to ensure complete sealing and no leakage, the rubber stopper of the syringe used in clinical practice is too tightly matched with the inner cavity of the jacket, which causes the medical staff to not only increase the labor intensity and time-consuming when sucking and injecting the medicinal solution; During the use of the syringe, the amount of medicine taken is controlled by artificially observing the scale on the syringe jacket, so the error of taking the liquid is relatively large; therefore, in order to improve the convenience of use and the accuracy of taking the liquid, the traditional syringe structure should Improve

[0003] In the selection of base materials for disposable syringes, the main body is generally made of polypropylene (PP), high-density polyethylene (HDPE) or polyvinyl chloride (PVC), etc. These types of syringe materials are all derived from non-renewable resource petroleum, and cannot be recycled after being discarded. Degradation, pollute the environment, and endanger human health. Disposable disposable medical devices based on these materials are usually disposed of by centralized incineration or deep burial. Incineration will produce air pollution and dioxins, and dioxins are the world's largest The strong carcinogens recognized by the medical field will cause serious damage to the human reproductive system, endocrine system and nervous system, and deep burial treatment will pollute the groundwater, in addition to causing serious white pollution

Although the Chinese government expressly prohibits the reuse of disposable medical devices, due to poor management of medical institutions and criminals driven by interests, a large number of disposable medical devices are still illegally reused, which has left serious medical risks for cross-infection; The medical piston is generally made of natural rubber. Natural rubber refers to a product made from the milky sap of the Brazilian Hevea tree. The main component is cis-1,4-polyisoprene, and it also contains protein and phospholipids. And other natural stabilizers, in addition to resin, sugar, inorganic salts and alkaloids, when some people are in direct contact with certain proteins in natural rubber, the body will produce an IgE (immunoglobulin E) antibody, these antibodies will be directed to attack the allergen, so that the IgE will bind to the mast cells and basophils, and when the allergen enters the immune system again, it will detain the IgE on the mast cells

Images