The difference between blue needle and purple needle is mainly the model. Blue needle No.6 and purple needle No.5 and a half are mainly suitable for children. The color of the infusion needle represents the size of the infusion needle. For example, black represents the 7th needle, blue represents the 6th needle, and purple represents the 5th and a half needle. Usually, the smaller the number of needles, the thinner the needles, which is convenient for different people to choose.
Usually, a purple needle will be used for infusion to children, because children's blood vessels are relatively thin, and if a thicker needle is used, it will easily lead to bleeding. For some adults with thick blood vessels, black needles can be used, and the infusion speed will be faster. However, it should be noted that the air in the infusion tube and needle should be exhausted before infusion, and the solution bottle or needle should be replaced in time as needed before the liquid drips out.
Storage method of needles:
1. Wrap the needle in paper and put it in a paper box to prevent it from rusting.
2. find a piece of cloth with high density to wrap it up, so that the surface of the needle can be kept dry and not easy to rust.
3. Wrap a small piece of flannel with cotton and lime powder to make a bag. When the needle is not used, put it in the bag, because lime powder can absorb water and prevent rust.
4, put the needle and desiccant together, as long as the needle does not touch the air, it will not embroider.
5. Applying a small amount of oil on the surface of the needle can isolate the air and prevent rust.
6. Refrigerate from 2 C to 8 C in the refrigerator. Don't go near the freezer and don't freeze.