A needle assembly for a medical device, comprising a needle hub adapted for receiving a needle cannula, and a needle shield having an open end. The needle assembly is adapted to be changed from an integral configuration, wherein the needle hub is aligned with the needle shield, wherein the first end of the needle shield is covered by the needle hub, and wherein a frangible connection forms an integral connection between a shield connecting portion and a hub connecting portion, to a broken configuration, wherein the frangible connection is broken, and whereby the needle hub and needle shield are two separate parts, and whereby the needle shield is removable from the needle hub.
