What is an insulin pump?
An insulin pump is a device the size of a pager that contains a syringe reservoir filled with insulin. You wear the pump outside your body and a small, flexible tube connects the reservoir of insulin to a catheter that you insert under the skin of your abdomen.
An insulin pump delivers insulin in much the same way as your body does. Your physician helps you determine how much insulin you need, and then you program the insulin pump to release the desired amount of insulin into your body. The pump releases rapid-acting insulin and delivers the insulin in two ways: continuously (basal) and in bursts (bolus), to cover food eaten.