A cartridge assembly for a syringe-type medication dispensing unit includes a cartridge having a cartridge body with first and second ends. A pierceable membrane is mounted at the first end and a piston is mounted at the second end, with a volume of medication contained in the cartridge body between...http://www.google.es/patents/US4936833?utm_source=gb-gplus-sharePatente US4936833 - Cartridge-holder assembly for medication dispensing unit
Cartridge-holder assembly for medication dispensing unit
