Insulin syringes, as the name suggests, are syringes specially designed to inject insulin. Usually consists of four parts, namely needle cap, injection needle, syringe, and pusher.
The reason why you need to use a special syringe to inject insulin can not be replaced by a common syringe, because the scale units marked on the two are different. The scale marked on the special insulin syringe is the insulin unit, while the scale on the ordinary syringe is the milliliter. The minimum unit of an ordinary syringe is usually 0.1 ml, which is equivalent to 4 units of insulin after conversion, and the insulin dose that most patients need to inject is not an integer multiple of 4. Therefore, if an ordinary syringe is used, the patient not only needs to convert the dose and volume, but also it is difficult to accurately draw the required dose.