A segmented safety cover may include a proximal segment combined with a needle hub； a needle cannula that extends from the proximal needle hub to a distal sharpened end； a distal end cap with a hollow bore through which the needle cannula passes； a centrally mounted toggle locking mechanism, separating the proximal needle hub from the distal end cap； the toggle locking mechanism is torsion spring assisted； a proximal cover segment is connected to the hub via a proximal hinge and a distal cover segment is connected to the end cap via a distal hinge； said proximal cover segment and said distal cover segment of said toggle locking mechanism being configured with abutting faces when the segmented safety cover is in a safety mode； and wherein the proximal hinge, abutting faces and distal hinge are in line in the safe mode.
