Disposable self-destroyed syringe needle

Abstract

A disposable self-destroyed syringe needle comprises a needle end connecting with needle tube and a connection end connecting with needle tube nipple. Said connection end comprises containing edge, inserting end and self-destroyed ring. The inserting end has a tubular structure closely fitting with the inside diameter of needle tube nipple; in the center of inserting end is a drain hole. At the end of inserting end is arranged a rib connecting with the self-destroyed ring which has the same diameter as inserting end. The containing edge is arranged around the inserting end, the opening direction of which is consistent with the inserting end's; the other end of the containing edge is connected with the needle end body. After injection, the self-destroyed ring of needle blocks the injection path; the needle tube and needle head are self locked safely to achieve the self-destroying purpose. It can no longer be used again. The invention has advantages of simple structure, reliable performance, good practicability and so on.

Description

technical field [0001] The invention relates to a disposable injection needle with self-destruction function, which belongs to the technical field of medical instruments. Background technique [0002] With the progress of society and the development of science and technology, it is inevitable that disposable syringes will completely replace reusable syringes. In the prior art, there are various kinds of disposable syringes and different structures. Some cannot be self-destructed after use, and can only be used for one time artificially. Therefore, unscrupulous traders can take advantage of the opportunity to wash and package the used disposable syringes for sale. Secondary infections are easily caused due to poor disinfection; some syringes have Self-destruct function, but the design is not reasonable enough. And prior art all is to improve syringe and push rod, and injection needle almost all adopts existing structure. The biggest defect of the existing injection needles...

AI Technical Summary

Problems solved by technology

Some cannot be self-destructed after use, and can only be used for one time artificially. Therefore, unscrupulous traders can take advantage of the opportunity to wash and package the used disposable syringes for sale. Secondary infections are easily caused due to poor disinfection; some syringes have Self-destruct function, but the design is not reasonable enough

And prior art all is to improve syringe and push rod, and injection needle almost all adopts existing structure

The biggest defect of the existing injection needles is that they can be reused many times after simple treatment, and the repeated use of injection needles has secondary pollution and cross-infection, and even causes serious problems such as death

Chinese patent 02208666.8 "Disposable Medical Injection Head" is composed of a reciprocating motion and a one-way rotary motion in the connecting sleeve, a guide sleeve and a rotary fork, etc., which has complex structures and is difficult to process.

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