Abstract: The present disclosure relates to an injection device for administering of a dose of a medicament. The injection device includes a housing that configured to accommodates a cartridge filled with the medicament, a first component movable relative to the housing along the longitudinal direction between an initial position and a trigger position for dispensing of the dose of the medicament, a second component rotatable relative to the housing for at least one of setting of the dose or dispensing of the dose, a cavity provided in or formed by at least one of the first component and the second component, the cavity been sized to accommodate an electronic detector, and at least a first gasket fastened to one of the housing, the first component and the second component and configured to seal the cavity against ingress of impurities at least while the first component is in the initial position.

Abstract: The present disclosure relates to a medicament delivery device comprising: a reservoir for medicament; a dispensing mechanism operable to dispense medicament from the reservoir, the dispensing mechanism comprising a sleeve configured to rotate during the dispensing of medicament and having a plurality of formations at an end of the sleeve; and a dosage measurement system comprising at least one mechanically actuated sensor configured such that, in use, rotation of the sleeve causes successive formations to engage the sensor such that the sensor detects rotation of the sleeve and a processor configured to determine a dosage dispensed from the medicament reservoir based on the detected rotation of the sleeve.