Syringe is a common medical device. As early as fifteenth Century, Italian Katie Neil put forward the principle of syringes. It consists of a syringe with a small hole at the front and a piston core that matches it. It is mainly used to inject liquid or extract liquid.

Syringe is a common medical device. As early as fifteenth Century, Italian Katie Neil put forward the principle of syringes.

The innovative tamper evident seal design allows the drug only to flow into the needle at the very moment when the syringe is opened, i.e. when the needle shield is pulled off. The tamper-evident closure enables both physicians and patients to determine if the syringe is still unused.

The emergence of needle free syringes is an epoch-making revolution in the field of medical equipment. The emergence of syringes is an epoch-making revolution in the field of medical equipment, and the process of injecting or injecting gas or liquid into a needle is called injection. By the end of a syringe needle with a hole and core rod matched with the composition, used to be a small amount of liquid or other methods into inaccessible areas or from those places out of the core rod when pulling out the liquid or gas from the front end of the needle cylinder hole suction, the core rod into the liquid or out of gas.

According to the history of medical records, the initial form of syringe is an enema. China's Han Dynasty physician Zhang Zhongjing in his "Treatise on" (written in 219 years) "wrote:" the "Wang Yangming disease, sweat, if sweating, urination, the fluid within the exhaust, although hard attack, when to want to defecate, should guide and honey fried the. If the Kwa root and pig bile, can serve as a guide. "In the book" a "pig bile in the paper is also clearly pointed out:" a big pig bile, and juice and a little vinegar, to fill the Valley Road (anus), such as a moment, when the stool, a persistent food very evil effect. How do you fill the valley?