Puncturing device FIG. 6 with needle shield 2, having a needle subassembly 1 and a needle shield 2 detachably mounted on the needle subassembly 1 for enclosing the needle distal end 9 up to the device usage, wherein said needle shield 2 has an actuating means 17 which being moved to a retracted position disengages the needle shield 2 from the needle assembly 1, wherein the detaching movement of the actuating means 17 is significantly shorter than the length of the needle 8.
