A needle assembly includes a housing having proximal and distal ends an IV cannula projecting distally from the housing and an IV shield having an engagement. The housing has a shield seat and the IV cannula has a distal tip. The IV shield has a pre use position where the IV shield covers the distal tip of the IV cannula and the engagement is disengaged from the shield seat and a use position where the engagement is engaged with the shield seat and the IV shield is adapted to move between a non shielded position in which the distal tip is exposed and a shielded position in which the distal tip is shielded by the IV shield.
