Getting your fill just got a while lot easier. Introducing the new Blunt Fill Needle from Smiths Medical, maker of Needle-Pro® and EDGE™ Safety Hypodermics and Syringe Combinations. Blunt fill needles are used for draw-up of medication, reconstitution of medication and accessing IV bags. Blunt Fill Needle with Filter features a 5 micron membrane that is designed to prevent large particles from being drawn into the syringe with preparing medications from ampoules.