insulin pumps

How do pumps work in my body?

In the pancreas of a person without diabetes, a small amount of insulin is released continuously to allow the body to use sugar in the blood for energy. Sugar in the blood comes from the food eaten. A larger amount of insulin is released with meals in order to maintain normal blood sugar levels. The pump is a tiny computer that contains a syringe that you load with short acting insulin.

Insulin is delivered through the infusion set which attaches to the pump. The infusion set is a thin tubing which has a tiny, short flexible tube (called a cannula) at the end of it. It is inserted into the tissue in the abdomen with a special needle about the size of an insulin needle.

The pump is programmed to deliver a basal rate, a tiny amount of insulin increments continuously, according to your needs. This rate can be increased or decreased. Your diabetes clinician team will help you determine your basal rate based on your specific insulin needs.

For example: your body may require a lower basal rate in the afternoon if you are very active and participate in sports. You may require a higher basal rate earlier in the day when you are sitting in the school, institute o university.

Before each meal or snack, you will give yourself a bolus dose by setting the pump to deliver a particular amount of insulin quickly. The amount of the bolus dose is based on the size of the meal.
Educational Treatment Unit
insulin pumps > How do pumps work in my body?