An automatic analyzer includes a wastewater suction unit that causes a suction nozzle to suction a reaction wastewater from each of plural reaction vessels transferred to a disposal position, transfers the plural suction nozzles to a cleaning position to make the suction nozzles suction a cleaning liquid,...http://www.google.com/patents/US8088343?utm_source=gb-gplus-sharePatent US8088343 - Automatic analyzer
