Needleless injector and using method thereof

Abstract

The invention provides a needleless injector and a using method thereof. The needleless injector comprises a disposable sterile ampoule bottle, an injection pen and a reset box, wherein the disposablesterile ampoule bottle comprises a bottle body, a push-pull rod, a piston head and a protective part; two ends of the bottle body are provided with holes, and one end of the bottle body is provided with an injection spray nozzle; the protective part is penetrated by a through hole; the size and the shape of the through hole are matched with the size and the shape of the outer wall of the bottle body; the protective part can sleeve outside the bottle body when a liquid medicine is injected; and the injection pen is contained in the reset box. According to the invention, an existing injector production line can be utilized to carry out mass production of ampoule bottles and realize automatic assembly of the push-pull rod and the bottle body, so that production efficiency is greatly improved, and use cost of a user is reduced; and meanwhile, the reset box can directly contain the injection pen in a non-pressurized state, and the injection pen can be easily placed in the reset box, so that a reset function of the injection pen is realized, and an assembly box does not need to be prepared.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a needle-free injector and a use method thereof. Background technique [0002] The incidence of diabetes is increasing day by day, and it has become the third biggest killer after cardiovascular and cerebrovascular diseases and tumors. At present, it is believed that insulin injection therapy is an effective method for the treatment of diabetes. Intensive treatment through insulin injection can make the patient's blood sugar, blood lipid, blood pressure and BMI fully reach the standard. At present, insulin pumps and insulin pens are mostly used to infuse insulin. The existing insulin pens on the market can be loaded with a refill, which contains insulin liquid and a delivery piston. When infusing, adjust the pen to the required amount, and then manually The push device is used to inject the medicinal liquid into the human body through the needle. Such an infusion method will caus...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a needle-free injector, which can solve the problem of complex structure of ampoules in the prior art, reduce the difficulty of mass production, further improve production efficiency, and reduce user cost. At the same time, the injection pen can be directly placed in the reset box. There is no need to prepare an assembly box, which is not only convenient for loading the injection pen, but also convenient for the overall product to be carried

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