A reagent cartridge for reacting a soluble reagent with a fluid diluent is disclosed having a fluid inlet for accepting a diluent and fluid outlet for expelling a solution. The cartridge casing also has fluid manifolds adjacent to the inlet and the outlet for directing fluid in a radial direction...http://www.google.com.au/patents/US5725777?utm_source=gb-gplus-sharePatent US5725777 - Reagent/drug cartridge
