DEDICATED CARTRIDGE AND HOLDER

摘要

A cartridge assembly for use with a drug delivery device comprises: a cartridge holder defining an aperture therethrough, with a blocking feature and at least one holder coding feature; and a cartridge with at least one cartridge coding feature; wherein when the cartridge is inserted into the cartridge holder, the cartridge coding feature mates with the holder coding feature, moving the blocking feature or allowing the blocking feature to move.