Cleaning device, method for cleaning nozzle clogging, and automatic analyzer
US8894949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 9, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0396
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cleaning device includes a discharge nozzle that discharges cleaning liquid; a suction nozzle that sucks the cleaning liquid or reaction liquid in the cleaning tank or the reaction vessel; a discard vessel connected to the suction nozzle via a pipe to discard the cleaning liquid or the reaction liquid; a detecting unit that detects whether an electrostatic capacity at least between the suction nozzle and an electrode provided in the pipe exceeds a threshold value; a determination unit that determines that the suction nozzle is clogged when a time difference between a time, at which the electrostatic capacity exceeds the threshold value when the suction nozzle is not clogged, and a time, at which the electrostatic capacity exceeds the threshold value at the time of determination, is not less than a predetermined time difference threshold value; and a control unit that stops the discharge nozzle from discharging the cleaning liquid to the reaction vessel when the suction nozzle is clogged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.