PTFE syringes are mainly used for needle extraction or injection of gas or liquid

PTFE syringes are often used in quantitative chemical analysis experiments. It can also be used in medical equipment, containers, and scientific instruments such as some chromatography to inject through rubber septums.

The PTFE syringe consists of a syringe with a small hole at the front end and a matching piston core rod, which is used to inject a small amount of liquid or inject it into areas that are inaccessible by other methods or withdraw it from those places. When it comes out, the liquid or gas is inhaled from the small hole at the front of the syringe, and the liquid or gas is squeezed out when the core rod is pushed in.