What is the purpose of a butterfly needle?

The purpose of a butterfly needle is specifically designed to facilitate ease of access in small veins or for use in pediatric patients. This type of needle, also known as a winged infusion set, features flexible "wings" on either side of the hub that allow for better control and positioning during venipuncture. The smaller gauge and precise design make it particularly useful for patients with small or fragile veins, such as infants or those receiving frequent blood draws.

Additionally, the butterfly needle minimizes the risk of damaging or collapsing the vein during the procedure, which is critical when working with young patients or individuals with difficult venous access. This specialized approach enhances the ability to draw blood with a lower chance of complications and ensures patient comfort.