A medical safety device is provided and includes a needle hub (120) having a needle (110) supported thereon； and a safety shield (130) operatively mounted on the needle hub. The safety shield includes a pair of spaced legs (130a,130b) and a foot member (136). Each proximal segment (134) includes a camming surface (160c). The safety shield further includes a trigger (180) supported on the foot member. The trigger includes a camming member (184) and is movable to move the camming member into engagement with the camming surfaces of the proximal segments to effect movement of the legs from a first position in which the distal ends of the distal segments shield a distal end of the needle to a second position in which the distal end of the needle is at least partially exposed. The trigger is removably secured to the foot member.
