Described is a needle safety device comprising a needle hub including a latch element, a needle coupled to the needle hub and having a distal tip, and a needle shield telescopically coupled to the needle hub. The needle shield includes a resilient arm adapted to engage the latch element. When the needle shield is in a first axial position relative to the needle hub, the needle shield covers the distal tip of the needle. When the needle shield is in a retracted position relative to the needle hub, the needle shield is retracted to expose the distal tip of the needle and the arm is deflected radially. When the needle shield is in a second axial position relative to the needle hub, the needle shield covers the distal tip of the needle and the arm engages the latch element to prevent proximal movement of the needle shield relative to the needle hub.
