Self-destructing disposable syringe

Abstract

The invention discloses a self-destructing disposable syringe, comprising a syringe, a needle rod and a self-destructing mechanism. The needle rod comprises a piston, a ring table, a pressing hand, arod body and a rib. The ring table and the pressing hand are fixed on two ends of the rod body respectively, and the piston is arranged in the syringe through the ring table. The needle rod is provided with a channel which comprises a destruction end arranged on the side of the ring table and opposite to the inner wall of the syringe and an extrusion end arranged at the end of the rod body; The self-destructing mechanism comprises an extrusion rod, a sharp portion and an elastic element, wherein the sharp portion is arranged at the destruction end of the passage, the extrusion rod is arrangedat the extrusion end of the passage, and the elastic element is arranged between the sharp portion and the extrusion rod. The syringe can continuously damage the inner wall of the syringe during the injection process, so that the syringe is damaged immediately after the injection is completed, and the purpose of disposable use is truly achieved. Moreover, there is no need to reserve space at the bottom of the syringe before use, which improves the convenience of use.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a self-destructing disposable syringe. Background technique [0002] At present, syringes are commonly used instruments in the field of medical and health care. Due to the requirements of sterility, hygiene and safety, used syringes should be discarded. But for some purpose, syringes are often recycled and reused, causing serious threats and damage to people's health. Based on the above reasons, how to prevent the syringe from being reused and thus prevent cross-infection is one of the focuses of people's attention. [0003] The disposable syringes on the existing market do not have the function of complete self-destruction after use, so part of the structure may be reused; even some disposable syringes have defects in the self-destruction function, although the syringes are recovered after one use. Destroyed to a certain extent, but the syringe as a whole can still...

AI Technical Summary

Problems solved by technology

[0004] The prior art with the Chinese patent announcement number CN201220022 disclosed a sealed self-destructing disposable syringe on April 15, 2009, which consists of a needle shaft, a syringe, a needle seat, a needle and a needle cover, and the needle shaft Installed in the needle barrel, the needle head seat is installed on the needle barrel, the needle head is installed in the needle head seat, the needle head sleeve is set on the needle head, the needle bar head is provided with the needle bar head, the needle bar head is provided with the needle bar head seal and the needle seat is pulled out hole, the patent uses the form of an elastic sealing structure on the needle bar head of the needle bar to achieve a good seal between the needle bar and the syringe, and at the same time it can self-destruct after one use to achieve the purpose of drug safety for the human body. Completely solve the problem of easy leakage between the needle bar and the syringe of the existing disposable syringe and unsafe medicine for human body

But before this syringe is used, a section of space must be reserved at the bottom of the barrel of the needle barrel, and the needle bar head on the needle bar cannot be pushed to the bottom, otherwise when the syringe is to be used, when the needle bar is pulled out to inhale the medicinal liquid, it will Pull out the needle holder and needle, directly self-destruct and cannot be used, resulting in waste

Therefore, there is a defect of inconvenient use

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