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Nozzle cleaning method, nozzle cleaning device and automatic analysis device

A technology for cleaning devices and nozzles, applied in the direction of injection devices, analytical materials, chemical instruments and methods, etc., can solve the problems of longer dispensing cycle time and inability to achieve high-speed analysis, so as to prevent the cleaning time from becoming longer and be reliable Cleaning, high-speed effect

Active Publication Date: 2016-06-22
BECKMAN COULTER INC
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  • Summary
  • 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 analysis device
  • Nozzle cleaning method, nozzle cleaning device and automatic analysis device
  • Nozzle cleaning method, nozzle cleaning device and automatic analysis device

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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 for cleaning a dispensing nozzle that suctions and discharges a liquid. The nozzle cleaning method includes: a first cleaning step of cleaning the outer wall surface of the dispensing nozzle after suction of the liquid and before discharging the liquid; and a second cleaning step of cleaning at least the inner wall surface of the dispensing nozzle after the liquid has been discharged wash. The nozzle cleaning device (6) is provided with: a cleaning tank (60) having an opening (60a) in the upper part for inserting the dispensing nozzle; a cleaning liquid supply device (61) for spraying the cleaning liquid to the upper part of the cleaning tank; storage A part (62) is arranged in the cleaning tank and in the area below the cleaning liquid sprayed by the cleaning liquid supply device for spraying, and has an opening (62a) for inserting the dispensing nozzle in the upper part, and stores the cleaning liquid; The cleaning liquid supply device (63) supplies the cleaning liquid to the storage part.

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 Patents(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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