The apparatus comprises a conveyor defining a path for transporting a device along the path； and a plurality of modules including at least one of (i) a de-contamination station located on the conveyor path and configured to receive therein the device and de-contaminate at least a surface of the device； (ii) a filling station located on the conveyor path downstream of the de-contamination station and including at least one filling or injection member that is in fluid communication with a source of substance to be filled into a chamber of the device； and (iii) a sealing station located on the conveyor path downstream of the filling station for sealing the filled device. The plurality of modules are (a) in series with each other, and/or (b) in parallel with each other, and are configured to permit addition of additional modules in series or in parallel with said plurality of modules.
