Patent ID: 7361166

Claim:
A cannula cover for an injector, wherein said cover can be axially retracted prior to injection to expose a cannula and the cannula cover exhibits a substantially closed front facing side comprising a cannula passage, wherein a closure is coupled to an interior portion of the cannula cover and is moveable to open and close the cannula passage, the movement of the closure comprising a portion of the closure moving in a radial movement away from the center of the cannula passage to expose the cannula to the cannula passage prior to exposure of the cannula from the cannula cover; wherein the closure comprises a covering flap which is moveable relative to the cannula passage via a slaving means when the cover is unlatched by rotating it; and wherein the covering flap rotates to move radially away from the center of the cannula passage prior to exposure of the cannula from the cannula cover when the slaving means engages the covering flap.