The appearance of insulin needle-free injection system is an epoch-making revolution in the field of injection system. It replaces the traditional needle syringe, which is safe, painless and infection-free, and is convenient, simple and fast to use. The principle is that after the liquid medicine passes through extremely fine pores under high pressure, a liquid column is generated, which is sprayed under the skin through the skin, and the absorption effect is greatly improved. It is widely used for injection of a small amount of liquid drugs such as insulin, interferon and vaccine.
There are more than 20 companies or scientific research institutions in the world engaged in the research and development of needle-free injection products, and China has already developed its own products and obtained many patents.
Insulin needle-free syringe has obvious outstanding advantages:
1. Avoid needle eye and pain: Needle injection often touches the subcutaneous nerve, causing unbearable pain, and even requires needle removal and transposition. It is difficult for patients with long-term injection to find a place where there is no needle eye to place the needle, and needle-free injection can be completely avoided.
2. Avoid induration and edema: needle-free injection, high-speed atomization and injection, diffusion and absorption, more efficient and uniform.
3. Put an end to skin infection: no skin puncture ensures aseptic operation to a greater extent, so it will not cause infection.
4. The operation is simple and safe, the dosage is more accurate, and the fine adjustment of 0.0 1ml can be realized. The water column sprayed by the needle-free insulin injector on the skin is only 0. 17mm, which is like a "needle" made of water and accurately enters the skin tissue, so it is very suitable for patients who inject insulin for a long time. This also marks that patients with long-term injections bid farewell to the era of acupuncture pain.
Patients who take insulin for a long time should take two or three injections every day. When the needle penetrates the human body, it will cause splitting damage to tissue fibers and capillaries, leading to pain, bleeding and infection, which will bring more psychological pressure and mental burden to patients. In addition, the local induration caused by long-term injection makes it difficult for drugs to be absorbed and affects the curative effect.