How Does An Insulin Pump Work?

Insulin pumps work by using battery power to pump small amounts of insulin into the body. The insulin is introduced under the skin through a fine tube called a cannula.

The insulin is pumped from a storage reservoir filled with fast-acting insulin. The pump supplies a steady stream of basal or background insulin throughout the day and night. In addition, you can add boluses of insulin when you eat a meal or snack. You can calculate the precise amount of insulin needed by counting the carbohydrates in your food and drinks.

An insulin pump allows you to tailor your insulin supply to your meals, exercise and lifestyle. You can programme the device ( either directly or using a controller or smartphone app, depending on the type of pump) to deliver the correct insulin level for your needs. Many people living with diabetes have to stick to a strict schedule to control their blood sugar levels. A pump gives you the freedom to be spontaneous; if you want a snack, you can have one; there’s no need for an extra injection. You just count the carbs and simply add an insulin bolus through the pump.

An insulin pump mimics your body’s natural pattern of insulin release. You should have more stable blood glucose levels, fewer hypos and hypers and a lower HbA1c. Ultimately, a pump can help reduce the long and short-term complications of diabetes and help you live well with your condition.