Winged infusion sets "butterfly infusion set", "scalp vein infusion set", "heparin lock" (frequently known under their Terumo Surflo Winged Infusion Set trademark as Butterfly needles) are used in venipuncture (phlebotomy). They are often used with people who have spasticity, or thin, "rolling" blood vessels difficult to access.
Since the winged needle uses a flexible tube, there is less chance of the patient causing damage if they move during th...
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Winged infusion sets "butterfly infusion set", "scalp vein infusion set", "heparin lock" (frequently known under their Terumo Surflo Winged Infusion Set trademark as Butterfly needles) are used in venipuncture (phlebotomy). They are often used with people who have spasticity, or thin, "rolling" blood vessels difficult to access.
Since the winged needle uses a flexible tube, there is less chance of the patient causing damage if they move during the procedure. Winged needles are usually a 21g green label, a 23g blue label, and a 25g orange label (however this needle is only used in pediatrics or extreme cases as it is so small that it can often result in hemolyzing the blood sample, thereby invalidating the test), with two plastic 'wings' on either side, flexible tubing, and another needle, generally sheathed with some sort of rubber like material at the other end. This needle, unlike the exposed side, is not sharp. The newer needles produced now also come with a slide and lock safety...
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