The pump reservoir delivers insulin to the body by a thin plastic tube called an "infusion set." Infusion sets come in various lengths and have a needle at the end, through which the insulin passes. The needle is inserted under the skin, usually on the abdomen. The process of putting the infusion set in place is called "insertion," and is very much like giving a standard insulin injection. The infusion set is changed approximately every two to three days.

The pump is intended to be used continuously and delivers insulin 24 hours a day according to a programmed plan which is unique to each pump wearer. A small amount of insulin is giving continually (the "basal rate"). This insulin keeps blood glucose in the desired range between meals and over night. When food is eaten, the user programs the pump to deliver a "bolus dose" of insulin matched to the amount of food that will be consumed.

Insulin pumps are not automatic. The user still has to decide how much insulin will be given. But the pump is the most accurate, precise, and flexible insulin delivery system currently available. Using the results of blood glucose monitoring, the experienced pump user can use this device to obtain excellent blood glucose control while living a normal lifestyle, free of the strict scheduling demands that are required by conventional insulin regimens.

Should I use an insulin pump?

Yes, if you have been frustrated with taking multiple injections, and are willing to use a mechanical device around-the-clock instead. In summary, if you are having trouble managing this complicated disease, you should consider using an insulin pump as part of a Very Intensive diabetes treatment Program.

Maybe, if you are a woman with diabetes who is considering pregnancy soon, or if you are presently pregnant and have elevated blood sugar levels.

No, if you have been satisfied with your present diabetes control. Getting better blood sugar control takes a lot of work, whether you are using shots or pumps. If you are already doing okay with shots, using a pump will not automatically make things "better."

No, if you have been unwilling to check your blood sugar levels several times a day. "The pump" only delivers the insulin; it cannot check blood sugar levels for you.

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