IV extension sets with injection ports provide strategically placed access points along the tubing for intermittent medication administration, flushing, and blood sampling. Ports may be traditional injection sites or modern needle-free valves, helping reduce repeated line disconnections and minimizing the risk of contamination or needlestick injury.

These extension sets integrate seamlessly with primary IV sets, central lines, and peripheral catheters. They allow multiple therapies to be delivered through a single access while maintaining a closed system. Port placement and quantity vary by configuration, giving hospitals and infusion centers flexibility to align with their protocols and workflows.