IP Library Granted Patent US 12,693,301
Granted Patent B2
US 12,693,301 · App. 18/039,536 · Granted Jul 28, 2026

Method of controlling multi-stream automatic analyzer timing

Inventors: Toshiaki Katano (Tokyo, JP); Takayuki Sugime (Tokyo, JP); Naoto Sakamoto (Tokyo, JP)
Assignee: HITACHI HIGH-TECH CORPORATION
G01N35/0092
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Quick Facts
Patent No.
US 12,693,301
App. No.
18/039,536
Filed
May 31, 2023
Granted
Jul 28, 2026
Kind
B2
Art Unit
2855
USPC
73/61.52
Abstract

A method of controlling an automatic analyzer includes searching for a substitute stream that can be substituted, in a case where an abnormality of a stream is detected for a liquid chromatograph having multiple streams, after setting an analysis schedule; and modifying the analysis schedule, if a substitute stream exists, so that a sample scheduled to be introduced into the stream which has the abnormality is introduced into the substitute stream, and treatment timings of the sample which has passed through the substitute stream and the sample which has passed through another normal stream in the detector do not overlap with each other, in which the automatic analyzer includes a pretreatment unit that purifies a sample; a separation unit; and a detector that detects a separated sample, and a treatment timing of the sample in the separation unit and the detector is controlled based on the analysis schedule.

Claims (15)

1 . A method of controlling a multi-stream automatic analyzer comprising:

creating, using a processor, an analysis schedule for treatment of a plurality of samples in parallel by the multi-stream automatic analyzer using a plurality of streams each including a separation column containing a separated one of the plurality of samples;

detecting an abnormality in one of the plurality of streams using a detector connected to each of the plurality of streams in parallel and being configured to detect any one of the plurality of separated samples;

determining a substitute stream that can be substituted for the stream in which the abnormality is detected; and

modifying the analysis schedule to include the substitute stream according to a rescheduling in which the sample scheduled to be introduced into the stream in which the abnormality has been detected is introduced into the substitute stream, and treatment timings of the sample introduced into the substitute stream and of the plurality of samples which are treated using one or more normal streams do not overlap with each other at the detector.

2 . The method of controlling the multi-stream automatic analyzer according to claim 1 ,

wherein the analysis schedule is modified depending on a priority of a specimen.

3 . The method of controlling the multi-stream automatic analyzer according to claim 1 , further comprising:

using an empty position in a sample installation position of a pretreatment unit as a standby location until the stream in which the abnormality has been detected returns to a usable condition.

4 . The method of controlling the multi-stream automatic analyzer according to claim 1 ,

wherein a standby-dedicated position is provided in a pretreatment unit and the standby-dedicated position is used as a standby location until the stream in which the abnormality has been detected returns to a usable condition.

5 . The method of controlling the multi-stream automatic analyzer according to claim 1 ,

wherein the substitute stream is defined in advance, and the use of the substitute stream is determined based on the definition.

6 . The method of controlling the multi-stream automatic analyzer according to claim 1 , further comprising:

receiving a setting of the substitute stream from a user via a setting screen display.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2023
From: KATANO, TOSHIAKI; SUGIME, TAKAYUKI; SAKAMOTO, NAOTO
To: HITACHI HIGH-TECH CORPORATION
Reel/Frame 063806/0625 →
Priority Claims (1)
JP 2020-205571 · Dec 11, 2020 · national
Continuity (1)
Related Publication 20230417781A1 · Dec 28, 2023
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