Nozzle cleaning method, nozzle cleaning device, and automatic analyzer

A technology of automatic analysis device and cleaning device, which is applied to spray devices, analysis materials, chemical instruments and methods, etc., can solve the problems of inability to realize high-speed analysis, longer dispensing cycle time, etc., and prevent cleaning time from becoming longer. , to achieve high-speed, reliable cleaning effect

Active Publication Date: 2010-03-31
BECKMAN COULTER INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the cleaning time of the dispensing nozzle is prolonged, the dispensing cycle time of one cycle of dispensing, which consists of suction and discharge of the sample and cleaning of the dispensing nozzle in one analysis, becomes longer, and analysis cannot be performed. high speed

Method used

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  • Nozzle cleaning method, nozzle cleaning device, and automatic analyzer
  • Nozzle cleaning method, nozzle cleaning device, and automatic analyzer
  • Nozzle cleaning method, nozzle cleaning device, and automatic analyzer

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Embodiment Construction

[0073] Hereinafter, preferred embodiments of the nozzle cleaning method, arrangement cleaning device, and automatic analysis device of the present invention will be described in detail with reference to the accompanying drawings. figure 1 It is a schematic configuration diagram showing an automatic analyzer according to an embodiment of the present invention.

[0074] The automatic analyzer 1 measures the optical characteristics of a reaction solution obtained by mixing a sample (liquid) such as blood or urine with a reagent corresponding to a test item and reacting it, thereby analyzing the component concentration of the sample. The automatic analysis device 1 is provided with a sample loading unit 2, a reaction unit 3, a reagent loading unit 4, a dispensing mechanism (dispensing device) 5, and a nozzle cleaning device 6.

[0075] The sample mounting unit 2 has a disk-shaped table, and includes a plurality of storage portions 21 arranged at equal intervals along the circumfer...

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Abstract

A nozzle cleaning method, a nozzle cleaning device, and an automatic analyzer, in which a dispensing nozzle for drawing and discharging liquid is reliably cleaned. The nozzle cleaning method has a first cleaning step for cleaning the outer wall surface of the dispensing nozzle at a time after liquid is drawn and before the liquid is discharged, and also has a second cleaning step for cleaning at least the inner wall surface of the dispensing nozzle after the liquid is discharged. The nozzle cleaning device (6) includes a cleaning tank (60) having at its upper part an opening (60a) in which thedispensing nozzle is inserted; a cleaning liquid supply device (61) for jetting, in the upper part in the cleaning tank, cleaning liquid; a containing section (62) provided at a position that is in the cleaning tank and is in a region below the cleaning liquid jetted by the cleaning liquid supply device (61), having at its upper part an opening (62a) into which the dispensing nozzle is inserted,and having the cleaning liquid contained in it; and a cleaning liquid supply device (63) for supplying the cleaning liquid to the containing section.

Description

technical field [0001] The present invention relates to a nozzle cleaning method, a nozzle cleaning device, and an automatic analysis device for cleaning a dispensing nozzle for sucking and discharging liquid. Background technique [0002] Conventionally, automatic analyzers that analyze samples such as blood or urine are equipped with nozzle cleaning devices that clean dispensing nozzles in order to avoid carryover. The above state is applied to the sample dispensed later, which affects the analysis result. This nozzle cleaning device is configured to supply the cleaning liquid to the dispensing nozzle, which is disposed in the middle of the movement track of the dispensing nozzle between the position where the sample is sucked and the position where the sample is discharged. In the nozzle cleaning method using the nozzle cleaning device, after the sample is sucked and discharged to complete the dispensing, the dispensing nozzle is moved to the position of the nozzle clean...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/10
CPCG01N35/1004B01L13/02B05B15/555
Inventor 黑田显久小林光久加濑仁启大川保
Owner BECKMAN COULTER INC
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