The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 2021
Filed:
Aug. 07, 2017
Hitachi High-technologies Corporation, Tokyo, JP;
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Abstract
The automatic analyzer includes a gear pump that supplies cleaning water to reagent probes and sample probes; a cleaning flow path that feeds the cleaning water discharged from the gear pump to the respective probes; a pressure sensor that measures pressure of the cleaning flow path; a return flow path that is disposed in parallel to the gear pump and connects a discharging port side of the gear pump and an aspirating port side thereof; a throttling unit that is disposed in the return flow path and adjusts a flow rate of the cleaning water flowing through the return flow path; and a control unit that changes an opening and closing degree of the throttling unit according to a measurement result of the pressure sensor. Accordingly, it is unnecessary to control driving of a pump used for cleaning a probe while having a low cost and a small mounting size.