Syringe capable of avoiding repeated use

Abstract

The invention discloses a syringe capable of avoiding repeated use, and belongs to the technical field of medical apparatuses. The syringe capable of avoiding repeated use comprises a needle cylinder, a needle rod, a plunger, and a needle head mounting base at the front end of the needle cylinder, wherein a cut-through liquid through hole is formed in the center of the needle head mounting base; the plunger is connected to the front end of the needle rod, and is placed inside the needle cylinder; the syringe is characterized in that a lug boss is arranged at the front end of the needle cylinder and at an orifice of the liquid through hole; a mushroom-shaped head is arranged at the front end of the plunger; the mushroom-shaped head is connected to the front end of the plunger through a connecting rod; the lug boss is shaped like a right triangle; the surface, facing the needle cylinder, of the lug boss is an inclined surface or a cambered surface; the surface, facing the liquid through hole, of the lug boss is a plane; a mushroom-shaped head accommodating cavity for blocking the liquid through hole is formed in the liquid through hole and at a position near the lug boss; the diameter of the mushroom-shaped head is slightly greater than the distance between the two opposite surfaces of the lug boss. The syringe capable of avoiding repeated use is simple and reasonable in structure, easy to produce and low in cost; the syringe cannot be repeatedly used after being used, so that the using safety is ensured, and viral cross infection caused by repeated use of the syringe is avoided.

Description

technical field [0001] The invention relates to a structure of a syringe, in particular to a syringe with an automatic locking and damage structure to ensure a hygienic and safe disposable syringe that cannot be used again, and belongs to the technical field of medical devices. Background technique [0002] A syringe is a medical device that injects medicine into the patient's body to achieve the effect of diagnosis and treatment. Before the medical staff injects the patient, the medicine is first introduced into the syringe, and then the medicine is injected into the patient through the needle on the syringe. There are many potential dangers in traditional syringes, and when they are used improperly, they will cause very serious harm and adverse effects to people's health. The structure of traditional syringes cannot avoid repeated use. When the syringe injects medicine into a patient, the patient's blood, residual medicine, bacteria, viruses, or other pathogenic substance...

AI Technical Summary

Problems solved by technology

Contaminated syringes also pose a very serious threat to the health of operators who need to avoid being injured by contaminated syringes

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