An insulin pump is a medical device used primarily by individuals with type 1 diabetes to deliver insulin instead of having to inject insulin multiple times a day with an insulin syringe or pen.

The insulin pump delivers rapid-acting insulin through a tiny plastic tube under the skin by:

1. Providing a continuous trickle or infusion of insulin 24 hours a day that replaces long-acting basal (background) insulin such as Lantus or Tresiba.
2. Provides the individual the ability to bolus insulin doses several times throughout the day to cover the carbohydrate eaten during a meal or snack as well as to correct for high blood sugars.