Sanofi
Apparatus for Detecting a Dose of Medicament Delivered from an Injection Device

Abstract:

Disclosed is an apparatus for detecting a dose delivered from an injection device having a dose setting mechanism that allows different dosages to be delivered. The accessory has an attachment portion configured to attach the accessory to the injection device, and a body that houses an optical sensor arrangement of the injection device includes a cartridge assembly and a housing, the housing contains a dose dispensing mechanism and a dose setting mechanism, the dose dispensing mechanism includes a part that moves in response to movement of the dose setting mechanism and indicates a dose dialed by the dose setting mechanism. The housing further includes a window aligned with the part of the dose dispensing mechanism to allow the optical sensor arrangement to detect a location of the part that moves in response to movement of the dose setting mechanism to determine the dose dialed by the dose setting mechanism.