A fluid filled ampoule comprises an ampoule body having a top end, a bottom end and a sealed interior containing a liquid. A top tab is coupled to the top end and is removable to create a drain vent in the top end. A bottom tab is coupled to the bottom end and is removable to create a drain opening in...http://www.google.sh/patents/US20040139968?utm_source=gb-gplus-sharePatent US20040139968 - Fluid filled ampoules and methods for their use in aerosolizers
