| 摘要 |
A nozzle cleaning method, a nozzle cleaning device, and an automatic analyzer that cleans a dispenser nozzle performing suction and discharge of liquid. The nozzle cleaning method includes a first cleaning step of cleaning an outer wall of the dispenser nozzle after the liquid is sucked and before the liquid is discharged, and a second cleaning step of cleaning at least an inner wall of the dispenser nozzle after the liquid is discharged. The nozzle cleaning device (6) includes a cleaning vessel (60) that has an opening (60a), to which the dispenser nozzle is inserted, at an upper part, a jet cleaning-fluid supplier (61) that jets out cleaning fluid at an upper part in the cleaning vessel, a retention unit (62) that is arranged in the cleaning vessel at a position below the cleaning fluid jet out by the jet cleaning-fluid supplier and retains the cleaning fluid, the retention unit having an opening (62a), to which the dispenser nozzle is inserted, at an upper part, and a retention cleaning-fluid supplier (63) that supplies the cleaning fluid to the retention unit. |
