Patent ID: 8821452

Claim:
A reminder device for a pen-shaped medical injection device, the medical injection device comprising: a cartridge holder; a cap removably attachable to the cartridge holder for protecting a distal end of the cartridge holder; and a main housing coupled to the cartridge holder, the main housing comprising the reminder device configured to be provided near a proximal end section of the main housing, and a drive mechanism for dispensing a user settable dose of the medicament in a distal direction, the drive mechanism comprising a piston rod for acting on a piston of a medication receptacle, the reminder device comprising: guiding device, an adjusting element movably disposed along a surface of the guiding device for the selection of a position of the adjusting element for indication of a time information without the cap attached to the cartridge holder, an indication device disposed along the guiding device and having an outer surface with sequential indicia or time indicia disposed thereon, wherein the indication device provides a time indication which corresponds to the position of the adjusting element, wherein the guiding device comprises a guide track on which the adjusting element is movably disposed in an axial direction, and wherein the reminder device further comprises a cage disposed on the guide track such that the cage is movable in the axial direction, in that the adjusting element is positioned in the cage and movable with respect to the cage in a vertical direction and wherein a biasing element is positioned between an inner surface of the cage and the adjusting element, and wherein the position of the adjusting element is user selectable by pressing the adjusting element against a force of the biasing element so as to disengage the adjusting element from the guide track.