Patent attributes
An auto-injector for administering a dose of a liquid medicament includes a tubular chassis telescopable in an elongate chassis, a carrier subassembly including a tubular carrier slidably arranged partially inside the chassis and inside the case, the carrier adapted to contain a syringe with a hollow injection needle, a drive spring, a plunger for forwarding load of the drive spring to a stopper of the syringe, a control spring arranged around the carrier, a needle insertion control mechanism for coupling a proximal end of the control spring to either the carrier for advancing it for needle insertion or to the chassis, wherein the syringe is lockable for joint axial translation with the carrier, wherein the needle insertion control mechanism includes a first collar biased by the control spring in a proximal direction, and wherein at least one fifth clip is arranged on one of the chassis or the first collar.
