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Automatic analyzer and cleaning mechanism in automatic analyzer

A technology of automatic analysis device and cleaning mechanism, which is applied in the direction of analyzing materials, cleaning hollow objects, and containers used in laboratories, etc., and can solve problems affecting analysis results, etc.

Active Publication Date: 2021-06-29
HITACHI HIGH-TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, if there is residual liquid in the cleaned reaction vessel, it will affect the subsequent analysis results

Method used

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  • Automatic analyzer and cleaning mechanism in automatic analyzer
  • Automatic analyzer and cleaning mechanism in automatic analyzer
  • Automatic analyzer and cleaning mechanism in automatic analyzer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]

[0034] figure 1 It is a figure which shows the basic structure of the automatic analysis apparatus concerning this embodiment. Here, an example of a turntable type biochemical analyzer will be described as one form of an automatic analyzer.

[0035] As shown in this figure, the housing of the automatic analyzer 1 is equipped with: a reaction disk 13 , a sample disk 11 , a first reagent disk 15 , a second reagent disk 16 , a photometer 19 , and a cleaning mechanism 21 .

[0036] The reaction disk 13 is a disk-shaped unit that can freely rotate clockwise and counterclockwise, and a plurality of reaction vessels 26 can be arranged on the circumference of the reaction disk 13 .

[0037] The sample disk 11 is a disk-shaped unit that can freely rotate clockwise or counterclockwise, and a plurality of sample containers 18 for storing biological samples such as standard samples or test samples can be arranged on the circumference of the sample disk 11 .

[0038] The first...

Embodiment 2

[0077] Next, another configuration of the cleaning mechanism 21 of the automatic analyzer 1 according to the present embodiment will be described. In the first embodiment described above, the case where the height of the cleaning head 30 is lower than the height of the reaction vessel 26 (the height from the opening (upper end) to the bottom (lower end)) is illustrated and described. here, use Figure 6 A structure in which the height of the cleaning head 30 is approximately the same as the height from the opening of the reaction container 26 to the bottom surface, and the tapered body 31 a is provided from the upper end to the lower end of the cleaning head 30 will be described. Figure 6 It is a figure which shows the structure of the cleaning mechanism provided with the cleaning head concerning this embodiment (Example 2). In addition, in this figure, with Figure 4 same, shown from relative to figure 2 The diagram is viewed from an angle where the right side of the rea...

Embodiment 3

[0081] Next, another configuration of the reaction vessel 26 of the automatic analyzer 1 according to the present embodiment will be described. In the above-mentioned embodiment, the structure of the reaction vessel 26 using a rectangular parallelepiped on all sides has been described. Here, the Figure 7 The case of using a reaction vessel (hereinafter referred to as a conical reaction vessel 33) formed as a part of the reaction vessel, that is, in a state where the lower end of the cleaning head 30 is in contact with the bottom surface, is described. In the cuboid region 33a (first region) from the position of the upper end of 30 to the bottom surface of the reaction vessel, the cross-sectional area of ​​the plane perpendicular to the insertion direction of the cleaning head 30 into the reaction vessel is equal; from the upper end of the cleaning head 30 to the reaction vessel In the tapered region 33b (second region) up to the opening, the cross-sectional area of ​​the surf...

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Abstract

When cleaning the reused reaction container, the inner wall of the reaction container may be damaged due to contact with the cleaning head that sucks up all the cleaning solution for subsequent analysis, which may affect the analysis result. The invention provides a device and a reaction container cleaning device of the device, the device comprising: a reaction plate for holding the reaction container; a sample dispensing mechanism for dispensing the sample into the reaction container; dispensing the reagent into the A reagent dispensing mechanism for a reaction container; an optical system including a light source for irradiating light onto a mixed solution of a sample and a reagent dispensed into the reaction container and a detector for detecting light irradiated from the light source; and cleaning the A cleaning mechanism for a reaction vessel, the cleaning mechanism comprising: a cleaning solution supply nozzle for supplying a cleaning solution to the analyzed reaction vessel; a cleaning solution suction nozzle for sucking the supplied cleaning solution; A cleaning head at the lower end of the nozzle, the side surface of the cleaning head is formed so that at least the surface opposite to the light source and the surface opposite to the detector are formed when the cleaning head is inserted into the reaction container. , a range overlapping with the photometric range, or a range larger than the photometric range, the width becomes smaller as it goes downward, and the photometric range is that the light irradiated from the light source to the reaction container is directed toward the detector through the range of the reaction vessel.

Description

technical field [0001] The present invention relates to an automatic analyzer for analyzing biological samples such as blood and urine, and more particularly to a cleaning mechanism for cleaning a reaction container and an automatic analyzer equipped with the cleaning mechanism. Background technique [0002] An automatic analyzer is a device for qualitatively and quantitatively analyzing biological samples (hereinafter, sometimes referred to as samples or samples) such as blood and urine. The sample and the reagent are reacted in the reaction container, and the component to be measured in the sample is analyzed. The reaction container is made of materials such as plastic or glass. In particular, in an apparatus for analyzing items such as biochemical analysis, the reaction container that has been used once for measurement is generally cleaned and reused. The cleaning operation of the reaction container is to move the reaction container to a predetermined cleaning position, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/02
CPCG01N2035/0437G01N2035/0444G01N35/04G01N35/1002B01L13/02B01L2200/141B01L2200/16B01L2300/0609B01L2300/0663B01L2300/0803B01L3/5085B01L3/502B08B9/087B08B9/093B08B2209/08
Inventor 盐谷圭饭岛昌彦
Owner HITACHI HIGH-TECH CORP
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