Disposable press-type first-aid injector for pre-filled medicine liquid

Abstract

The invention relates to a disposable press-type first-aid injector for pre-filled medicine liquid.The injector is composed of an outer sleeve, a middle sleeve, a double-head needle, an inner push plug, a push rod and a compressible medicine storing bag; the double-head needle is fixed at the front end of the middle sleeve, the front end of the outer sleeve and the front end of the compressible medicine storing bag fixed at the front end of the inner push plug are each provided with a small hole covered with flexible glue, the small holes can be punctured by the double-head needle from the inside and the outside respectively, and first-aid medicine liquid is stored in the medicine storing bag in advance.The injector has the advantages that a needle body is moderate in size and suitable for being held and pressed, the injecting action is simple and can be completed only through a single hand, and therefore a wounded person can be conveniently and independently injected with the medicine liquid; the individually-packaged pre-filled medicine liquid is stored in the injector, the medicine liquid does not need to be extracted again in the operation process, and therefore pollution can be avoided; the length of the portion, piercing into a body, of the needle tip of the injector is fixed and small, the organs and tissue such as the nervus vascularis are not prone to damage, and the disposability is achieved, so that cross infection is avoided; the structure is simple, the manufacturing cost is low, no complex mechanical device exists, and mechanical failures can be prevented from occurring in the operation process.

Description

【Technical field】 [0001] The invention relates to the technical field of medical first-aid equipment, in particular to a disposable pre-filled medicine liquid push-type first-aid syringe. 【Background technique】 [0002] 1. During first aid or war, the wounded are likely to be in a state of wound pain, anxiety, no one to rescue, fatigue or even limited limbs on one side, and a polluted environment. necessary. Syringes that can be used by the injured by themselves should have the characteristics of one-handed operation, no need to extract liquid medicine, and easy use; [0003] 2. The syringes widely used in the medical field are mainly disposable glass syringes and plastic syringes. When using it, it is necessary to install the needle, extract the medicinal liquid, and inject the medicinal liquid for drug injection. The operation steps are relatively cumbersome and are suitable for non-emergency places; [0004] 3. Some existing automatic first aid syringes have problems su...

AI Technical Summary

Problems solved by technology

[0004] 3. Some existing automatic emergency syringes have problems such as precise components, complex structures, and high cost. Once a problem occurs, it is difficult to repair, and some syringes still need to extract liquid medicine when they are used, which is easy to cause pollution and is not conducive to the protection of health and safety.

The patented device of the invention is complicated, and it is easy to cause mechanical failure during operation, so it is not suitable for emergency situations

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