The winged infusion set, also known as a "butterfly" or "scalp vein" set, is a specialized medical device designed for venipuncture, which is the process of accessing a superficial vein or artery for either intravenous injection or phlebotomy. This set is composed of multiple components that facilitate precise and safe access to the vasculature.
Components of a Winged Infusion Set
- Needle: The central component of the set, a sharp, hollow tube with two wings on either end. The wings serve to locate and aid in the insertion of the needle into the vein.
- Wings: Flexible, bilateral extensions of the set that hold the needle at a right angle to the skin, allowing for safer and more accurate insertion.
- Tubing: A flexible, small-bore, transparent tube that connects the needle to a hub or connector. This tube is typically around 20-35 cm in length and is used to transport blood or other fluids.
- Connector: A female Luer connection that allows the set to connect to other medical equipment, such as a syringe or infusion pump.
Advantages of a Winged Infusion Set
- Precise Placement: The wings and needle design allow for precise placement, reducing the risk of accidentally penetrating a vein or artery.
- Increased Tolerance for Patient Movement: The flexible nature of the wings and tubing allows for increased movement of the patient during the venipuncture process, making it easier to perform in challenging patients.
- Ease of Use: The set is designed to be user-friendly, with minimal exposure to sharps and a visual indicator to confirm proper needle placement.
- Reduced Risk of Hemolysis: Recent studies have shown that small-bore needles, such as those found in wings, do not lead to hemolysis or clotting of blood samples, which caninvalidate blood tests. This is particularly important for patients with bleeding disorders.
History and Development of the Winged Infusion Set
The original idea behind the development of the winged infusion set dates back to the early 1980s, when the need for precise, comfortable venipunctures became increasingly apparent. Over the years, the design of the set has evolved significantly, with newer models incorporating safety features such as slides and lock devices to prevent accidental needlestick injuries.
##The winged infusion set is an essential tool for phlebotomists and other medical professionals who require access to the superficial vasculature. Its design provides a safe, efficient, and user-friendly way to perform venipunctures, reducing the risk of complications and improving patient comfort during the procedure. With its various components and advances in design, the winged infusion set remains a fundamental tool for modern medical procedures.
