What’s the difference between a cannula and a needle?
A flexible, plastic cannula (sometimes made of Teflon®) can be inserted using an introducer needle, as in the Cleo® infusion set. A plastic cannula is very comfortable to wear and can remain inserted for up to 72 hours. However, the cannula can become kinked; restricting the flow of insulin, and it cannot be re-inserted if it becomes dislodged. A thin metal needle is inserted directly into the skin. Metal needle sets will not kink. If you have a plastic allergy, a metal needle is your best option. Metal needles may pinch or cause discomfort during movement or physical activity, and should be changed every 48 hours.
