Disposable syringe

Abstract

The invention belongs to the technical field of medical instruments, and relates to a disposable syringe. The lower end of a syringe body is provided with a needle base, a pushing rod is arranged in the syringe body, a connecting block is arranged on the lower end of the pushing rod, a rod head is mounted on the lower end of the connecting block, a piston is connected with the pushing rod through the connecting block and can move inside the syringe body along with the pushing rod, and an annular groove is formed in the outer cylindrical surface of the lower end of the rod head; a first elastic clamping claw is arranged on the inner wall of the needle base and clamped with the annular groove in the rod head to achieve a self-destruction function; a protective cover is arranged outside the needle base on the lower end of the syringe body and is of an integrated structure with the syringe body, a second elastic clamping claw is arranged on the lower end of the inner wall of the protective cover, the upper end of a needle locking cover is provided with an annular convex rim, the needle locking cover stretches from the lower end of the second elastic clamping claw into the protective cover, and the second elastic clamping claw is arranged on the bottom plane of the annular convex rim to lock a syringe needle; the disposable syringe achieves self-destruction functions of the syringe body, the pushing rod, the piston and the syringe needle, and improves the safety and reliability of the usage of the medical instruments.

Description

technical field [0001] The invention belongs to the technical field of medical appliances and relates to a disposable syringe. Background technique [0002] With the development of science and technology, disposable syringes have been popularized. However, most of the disposable syringes do not have the function of self-destruction. After the injection is completed, the medical staff discards them into special medical trash cans for centralized destruction. However, there are still loopholes in management. For example, some criminals illegally recycle the injected disposable syringes, and after a little treatment, they flow to some medical institutions for reuse. There is a great potential safety hazard, which greatly increases the chance of virus cross-transmission and infection. The patent authorization announcement number is CN 20604510 U which provides a kind of disposable self-destruct syringe. The patent self-destructs the syringes, push rods and pistons, but does n...

AI Technical Summary

Problems solved by technology

The patent self-destructs the syringes, push rods and pistons, but does not process the needles, which may still be reused, and may hurt the staff who handle medical waste during recycling. , resulting in virus cross-spread and infection

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