Patent ID: 9242045
Filing Date: 2016-01-26
CPC Classification: A61M

Claim Text:
1. Auto-injector for administering a dose of a liquid medicament, comprising a housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site, wherein the syringe is slidably arranged with respect to the housing, a plunger connected to at least one of the syringe and the stopper, a drive mechanism comprising at least one spring essentially transversally arranged with respect to a longitudinal axis of the syringe at least when the drive mechanism is in a loaded state capable of, upon activation: an activating mechanism arranged to lock the drive mechanism in the loaded state prior to manual operation and capable of, upon manual operation, releasing the drive mechanism for injection, and a linkage and cam mechanism configured to transmit movement of the drive mechanism into movement of the plunger, a linkage of the linkage and cam mechanism comprising at least one arm with a first end and a second end, the first end having at least one cam follower engaged in a cam track provided in the housing and being hinged to the at least one spring, the second end being hinged to the plunger.