Insulin syringes on the market mainly include ordinary insulin syringes, insulin injection pens, and needle-free insulin syringes.
Ordinary insulin syringes are designed and manufactured in accordance with the standard of one-time use. They are plastic products with exquisite workmanship, sharp needles and clear graduations. In insulin injection therapy, one should try to ensure one replacement at a time.
Insulin injection pens are divided into insulin pre-filled injection pens and refillable insulin injection pens. The insulin pre-filled injection pen is a disposable product, and it can be discarded with the pen when it is used up. The refill can be replaced. The pen body of the insulin injection pen can be used repeatedly, but its needle is disposable, and a new refill and needle need to be replaced when it is used up. The insulin injection pen can be carried with you and is convenient to use.
The needle-free syringe uses high pressure to make insulin penetrate the surface of the skin in the form of a "liquid needle", penetrate into the subcutaneous tissue, and complete the injection, with low pain and accurate dosage. Because the physical needle is removed, the patient's psychological pressure and mental burden can be reduced. In addition, the needle-free injection is sprayed at a high speed in the form of a mist, and the diffusion and absorption are relatively uniform, which can avoid the occurrence of induration to a certain extent. However, needle-free syringes are relatively expensive and have high economic costs.
It should be noted that there are many types of insulin, and there are specially matched insulin syringes. Insulin syringes cannot be used indiscriminately. They must be matched with the insulin that matches them. Otherwise, it will easily lead to inaccurate insulin dosage and make blood sugar unstable. At the same time, insulin syringes from different manufacturers cannot be used universally.