Does needle-free injection hurt? Is there any sound after the injection? Are there any marks on the skin?

1866, French scientists first put forward the concept of "needle-free injection", and many scholars began to develop advanced syringes that spread liquid medicine into patients' skin without needles and driven by high-speed airflow. After years of research and development, the world's first needle-free syringe product was listed in the United States on 1992 and was approved for insulin injection. Needle-free injection, as a medical technology and a new injection technology, has been gradually applied to clinic in recent years. This technology is that liquid medicine directly enters the body tissue in the form of ultra-fine, high-speed, linear high-pressure jet without the help of a needle, thus solving a series of problems caused by traditional injection because the needle penetrates the body. Needle-free injection has no foreign matter entering the body except the drug itself. Therefore, many authoritative organizations call the application of needle-free injection technology "a revolution of medical injection technology".

The principle of needleless injection seems simple, but there are many technical difficulties in the development of needleless injector, such as complicated injector structure, difficult processing and control of injection pressure. Previously, because the research on needle-free injection technology in China started late, only a few countries such as the United States and the Netherlands could produce needle-free syringes.

2065438+In March 2002, QS-M needleless syringe designed by Beijing Kuaishuer Medical Technology Co., Ltd. passed the registration and approval of the State Food and Drug Administration, and obtained the listing qualification. Since then, needleless syringes have been branded as "Created in China", and China has become one of the few countries in the world that can produce needleless syringes.