It then gives bursts of insulin whenever it detects elevations of blood sugar levels. Insulin pump therapy is an increasingly popular method of insulin replacement therapy. Patchwork Slim Insulin Pump Pouch Insulin Pump Pouch Insulin Pump Insulin Pump Case It drip feeds insulin into the body through the day and can also deliver larger doses of insulin whenever needed, such as before meals. How does a pump work for diabetes . It nevertheless requires programming and constant interaction from the wearer. Continue ketone protocol until improved. The cannula is inserted just under the top layer of your skin. It’s important to remember that you’ll also have to buy other things that make the pump work, like your infusion set. About the size of a pager, the pumps are worn both day and night. The pump is worn outside the body, in a pouch or on your belt. Pros and cons of an insulin pump. Insulin pumps eliminate the need for multiple daily injections by pumping a slow and ...