A DRIVE ASSEMBLY (1) FOR USE IN A DRUG DELIVERY DEVICE (50) IS PROPOSED, THE DRIVE ASSEMBLY COMPRISING: A HOUSING (2) HAVING A PROXIMAL END (3) AND A DISTAL END (4)； AN AXIS (A) EXTENDING BETWEEN THE PROXIMAL END AND THE DISTAL END； AT LEAST ONE DRIVE MEMBER； A PISTON ROD (6) ADAPTED TO BE DRIVEN ALONG THE AXIS BY THE DRIVE MEMBER； AN INDICATOR (5) ADAPTED TO PROVIDE POSITIONAL INFORMATION ABOUT A POSITION OF THE PISTON ROD RELATIVE TO THE PROXIMAL END, WHEREIN THE INDICATOR AND THE PISTON ROD ARE CONFIGURED TO CONVERT A RELATIVE MOVEMENT ALONG THE AXIS OF INDICATOR AND PISTON ROD WITH RESPECT TO ONE ANOTHER INTO A ROTATIONAL MOVEMENT OF THE INDICATOR. ADDITIONALLY, A DRUG DELIVERY DEVICE COMPRISING THE DRIVE ASSEMBLY IS PROVIDED FOR. THE MOST ILLUSTRATIVE DRAWING ACCOMPANYING THE ABSTRACT: FIG. 4
