Disposable safety syringe with syringe needle capable of automatically retracting

Abstract

A disposable safe injector with a needle head capable of retracting automatically relates to the technical field of medical devices. The disposable safe injector comprises the needle head, a needle cylinder and a push rod. The needle head comprises a needle tube and a core tube; the core tube is a hollow coring tube; the needle tube is fixedly inserted in the core tube; the push rod is inserted in the inner cavity of the needle tube; the disposable safe injector further comprises a needle head positioning and sealing device and a needle head retracting device; and after the injection is finished, the needle head can be automatically retreated and concealed. The invention has the advantages of reasonable design, convenient assembly, suitable automatic assembly on a production line, high production automation and efficiency, good quality of automatic assembly, high yield, unchanged traditional method when in use, convenient operation and reliable action; the needle head can be retracted and concealed automatically after the injection, so that doctors and patients are ensured not to be damaged by a needle point; the disposable use of the injector is beneficial to realization in real sense; the infection of hematogenous diseases is avoided; and a safer and more sanitary medical environment is created.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a disposable safety syringe with automatically retractable needles. Background technique [0002] The use of disposable sterile syringes when injecting medicinal solutions and preventing vaccines has played a positive role in controlling iatrogenic infectious diseases and preventing cross-infection. However, the currently used disposable syringes have many deficiencies due to their unreasonable structure. The needles of some existing disposable syringes are exposed after use, which is very easy to cause sharp injuries, and there is a hidden danger of direct cross-infection. That is, the discarded syringes after use are reprocessed and then reused, so it is difficult to realize real disposable use. There are also some syringes with complex structures, inconvenient assembly, low pass rate of finished products in assembly, and even more unfavorable for assembly line automa...

AI Technical Summary

Problems solved by technology

However, the currently used disposable syringes have many deficiencies due to their unreasonable structure.

The needles of some existing disposable syringes are exposed after use, which is very easy to cause sharp injuries, and there is a hidden danger of direct cross-infection. That is, the used syringes are reprocessed and then reused, so it is difficult to achieve real one-time use

There are also some syringes with complex structures, inconvenient assembly, low pass rate of finished products in assembly, and even more unfavorable for assembly line automatic assembly production. Compared with ordinary syringes, there is a big difference in usage habits.

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