Patent ID: 8246577
Filing Date: 2012-08-21
Classification: A61M

Abstract:
1. An injection device, comprising: one or more co-operating mating stops; a dose setting element; a threaded rod coupled to the dose setting element, the threaded rod comprising a claw lock projecting from the threaded rod and configured to locate in the one or more co-operating mating stops; wherein to set a dose, the dose setting element is rotated in a dose setting direction; wherein during administration of the dose, the dose setting element rotates in a direction opposite the dose setting direction to advance the threaded rod to administer the dose; and wherein during setting and administering of the dose, the claw lock and the one or more co-operating mating stops are free of each other, and after administering a last dose available in the injection device, the one or more co-operating mating stops are engaged with the claw lock to prevent further rotation of the threaded rod or dose setting element relative to the injection device such that the injection device can therefore no longer be used.