Patent ID: 7544189

Claim:
A needle and hub assembly for an injection device, the assembly comprising: a cap having an engaging portion adapted to engage an exterior surface of a cartridge, and a needle-supporting portion having a wall that includes an opening therein, the wall defining interior and exterior surfaces opposite each other; a first hub portion having a forward section extending through the opening in the wall and defining a needle-receiving channel through the opening in the wall and having a section that extends along and contacts the interior surface of the wall; a needle mounted in the needle-receiving channel and extending outwardly therefrom; and a second hub portion mounted over the first hub portion and receiving at least a portion of the needle, the second hub portion having reinforcing structures which extend outwardly along and contact the exterior surface of the wall, the second hub portion further having a supporting portion that extends beyond the first hub portion in the direction of the needle and that contacts the needle; wherein the wall of the needle-supporting portion of the cap is adjoined on the exterior surface by the second hub portion and on the interior surface directly opposite the adjoined exterior surface in the same direction as a longitudinal axis of the needle by the first hub portion forming a contiguous, mutually reinforcing sandwiched structure of the second hub portion, the wall, and the first hub portion that extends around the opening in the wall.