Auto-injector with needle cover

A drug delivery device comprising:

• a housing;
• a syringe assembly comprising a barrel, a stopper, and a cannula,
• at least a portion of the syringe assembly positioned within the housing;
• a drive assembly associated with a motor body receiving at least a portion of the drive assembly, the drive assembly configured to move the stopper within the barrel upon actuation of the drive assembly, at least a portion of the drive assembly positioned within the housing;
• a lever actuation member moveable between a locked position where the actuation of the drive assembly is prevented and a released position where the actuation of the drive assembly is allowed;
• and
• a needle cover having a pre-use position where the cannula is positioned within the needle cover, an actuation position where the drive assembly is actuated, and a post-use position where the cannula is positioned within the needle cover, the needle cover configured to contact and engage the lever actuation member and move the lever actuation member to the released position when the needle cover is moved into the actuation position,
• wherein the needle cover contacts the lever actuation member and prevents the movement of the lever actuation member from the locked position to the released position when the needle cover is in the pre-use position,
• wherein the lever actuation member is rotatable about a rotation axis of the lever actuation member extending perpendicular to a longitudinal axis of the device, between the locked position and the released position,
• wherein the lever actuation member comprises a restriction surface configured to engage the needle cover and restrict the rotation of the lever actuation member in a direction of the released position when the needle cover is in the pre-use position, and an assembly surface, distal to the rotation axis of the lever actuation member, configured to engage a locking pin that extends through a pin opening in the motor body in a perpendicular direction with respect to the longitudinal axis of the device and parallel to the rotation axis of the lever actuation member to prevent rotation of the lever actuation member and unintentional actuation of the drive assembly during assembly of the device, and
• wherein the drive assembly is actuated by the movement of the needle cover to the actuation position.