It is important to know a little bit about using an insulin pump. About what dosage form of insulin can be used for insulin pump, what is the principle of insulin pump therapy, can you use insulin pump without diet control? A. What type of insulin can be used for insulin pump? Short-acting insulin and ultrashort-acting insulin analogs, such as short-acting human insulin, lysergic acid insulin and menthol insulin can be used in insulin pumps. However, lysergic and menthol insulin have a lower risk of glycemic control and hypoglycemia than short-acting human insulin and are less likely to cause infusion hose obstruction. Therefore, human insulin analogs may be the preferred choice for insulin pumps. Medium- and long-acting, premixed insulin cannot be used for insulin pump therapy. Second, what is the principle of insulin pump therapy? It simulates the physiological secretion function of human pancreatic islet β-cells and continuously infuses insulin for 24 hours. The infusion is divided into basal and pre-meal amounts. Basal amount: The amount of insulin is infused continuously for 24 hours by micro-infusion, which simulates the secretion pattern of human basal insulin. It is mainly used to control nighttime, fasting and preprandial blood glucose. Pre-meal: simulates the amount of insulin secreted rapidly after a meal. It is mainly used to control blood glucose 2 hours after meal. C. Can I not control my diet with an insulin pump? Although the free control of insulin is better, it can’t completely control blood sugar as well as normal insulin. Human physiological insulin secretion is an automatic process, that is, according to the level of blood glucose and the time to automatically secrete the appropriate dose of insulin. At present, the insulin pump is still in the stage of “open-loop”, which cannot “automatically” infuse the corresponding dose of insulin in time according to the level of blood glucose elevation, and it is still necessary for people to calculate, feel and set the way and method of insulin infusion in the insulin pump according to the rules of diet, blood glucose level and fluctuation of blood glucose. The way and method of insulin infusion by the insulin pump. In other words, insulin pumps simulate but cannot fully achieve the physiological insulin secretion of the human body, and they cannot fully achieve the goal of “eating as much as you want” after use. It is worth mentioning that even though there may be “closed-loop” insulin pumps in the future, which can “automatically” infuse the appropriate amount of insulin according to the level of blood glucose elevation and the time of the day, the necessary diabetic dietary principles should not be violated.