Disposable adjustable injector

Abstract

The invention discloses a disposable adjustable injector which comprises a syringe body, an injection needle, a first rubber piston, a push rod, an internal thread sleeve and an annular sleeve. An injection cavity is formed inside the syringe body, an annular clamping groove is fixedly formed in the left inner wall of the injection cavity in a sealed mode, a first annular rubber blanket is fixedly arranged on the inner ring of the annular clamping groove in a sealed mode, a second rubber piston portion is fixedly connected to the left side of the first rubber piston, a spherical containing groove for containing a spherical connector is formed in the surface of the right side of the first rubber piston, the spherical connector is fixedly connected to the left end of the push rod, an internal thread sleeve is arranged inside the annular sleeve through a connecting rod fixing frame, an internal thread through hole is formed inside the internal thread sleeve, and the push rod is rotationally arranged inside the internal thread through hole in a thread connection mode. The disposable adjustable injector is simple in structure, reasonable in design, controllable in medicine injection amount, capable of being prevented from being reused, safe and reliable.

Description

technical field [0001] The invention relates to a syringe, in particular to a disposable adjustable syringe. Background technique [0002] A syringe is a common medical appliance, consisting of a syringe with a small hole at the front end and a matching piston core rod, and is mainly used for injecting liquid medicine or drawing liquid. Currently, it is difficult for medical personnel to control the injection volume of medicinal liquid during the process of pushing and drawing medicine from the syringe. [0003] In addition, driven by interests, the illegal recycling of medical waste has been repeatedly prohibited. Especially, in impoverished countries and regions where hygiene knowledge is weak, disposable syringes are used repeatedly, which causes the spread of many diseases. In order to standardize medical supplies in various regions, facilitate the supervision of the health department, and prevent the reuse and illegal recycling of disposable syringes, a variety of non...

AI Technical Summary

Problems solved by technology

However, the existing non-reusable medical syringes have problems such as complex structure, inconvenient operation, and easy accidental injury to medical staff with sharp tools.

Images