A cannula pump, in the context of insulin delivery, uses a cannula – a small, thin tube – to deliver insulin under the skin. The insulin reservoir is part of the pump. The cannula is inserted via a needle (part of an infusion set), and the needle is then removed, leaving the cannula in place to administer insulin.
Essentially, it's a method of delivering medication (most commonly insulin) through a thin tube (cannula) placed under the skin.
Here's a breakdown:
- Cannula: A short, flexible plastic tube that is inserted under the skin. This is the portal through which insulin is delivered.
- Pump: The device that holds the insulin reservoir and controls the dosage and delivery of insulin.
- Infusion Set: The complete set-up includes the cannula, the tubing that connects it to the pump, and the insertion device (needle). Infusion sets are typically changed every 2-3 days to prevent infection and ensure proper insulin absorption.
Therefore, the "cannula pump" system involves using a pump to push insulin through the cannula and into the body. This is primarily used in insulin pumps for managing diabetes.
