A passive reservoir for medicament in the form of a plastics bag 1, has a hanging eyelet 2 at its upper end and a lower outlet nozzle 3. The plastics bag 1 has bottom corners 4,5, the left-hand right-angled corner 5 of which encapsulates a data carrier means 6 which carries data relating to a medicament...http://www.google.com/patents/US5980501?utm_source=gb-gplus-sharePatent US5980501 - Reservoirs and delivery devices
