Winged infusion set

A winged infusion set, also known as a butterfly needle, is a device used for venipuncture. It consists of a hypodermic needle with two bilateral flexible "wings" and a short, flexible transparent tubing that terminates in a connector. The wings are used to hold the needle during insertion, and the tubing allows for greater flexibility and precision in placement.

Design and Function

The winged infusion set is designed to access veins for drawing blood or administering intravenous (IV) fluids. The wings provide a surface for gripping, which helps stabilize the needle during insertion and reduces the risk of needle movement once in place. The flexible tubing allows the needle to remain in place even if the patient moves, reducing the risk of injury or discomfort.

The needle is typically smaller in gauge, making it less painful for the patient and ideal for use in pediatric or geriatric patients, or those with small or fragile veins. The connector at the end of the tubing can be attached to a syringe, IV line, or blood collection system.

Uses

Winged infusion sets are commonly used in:

• Phlebotomy for blood collection
• Intravenous therapy for administering medications or fluids
• Platelet donation and other apheresis procedures

A platelet donation procedure using a winged infusion set.

Advantages

The main advantages of using a winged infusion set include:

• Greater control and precision during insertion
• Reduced risk of needle movement and vein damage
• Increased comfort for the patient
• Versatility in connecting to various medical devices

Disadvantages

Despite its advantages, the winged infusion set has some limitations:

• Higher cost compared to standard needles
• Potential for increased risk of needlestick injuries due to the exposed needle

Related Pages

• Phlebotomy
• Intravenous therapy
• Apheresis
• Needlestick injury