Electronic insulin pump

This device releases insulin almost the way your body naturally would: a steady flow throughout the day and night, called basal insulin, and an extra dose at mealtime, called a bolus, to handle rising blood sugar from the food you eat. You program the pump for both basal and bolus doses. If you eat more than normal, you can program a larger bolus to cover the carbs in your food. A bolus can bring down high blood sugar at other times, too.

The pump is about the size of a smart-phone. You attach it to your body using an infusion set: thin plastic tubing and either a needle or a small tapered tube called a cannula you put under the skin.