JP5292325B2 - Reagent container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that air bubbles formed at the time of transport before installed to an apparatus or a violet fall and mixing are visually confirmed by an operator, and since air bubbles should be removed if they are present, labor is required in a reagent container where a cylindrical member is added to the falling range of a reagent dispensing probe by combining a reagent container with a cylinder so as to prevent the air bubbles formed during use in an autoanalyzer from entering. <P>SOLUTION: The reagent container is constituted so as to form a structure of preventing a reagent from entering the cylinder at the time of the transport or the violet fall and mixing, so that the reagent is easily introduced into the cylinder immediately before use to prevent air bubbles from entering the cylinder. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a reagent container used in an automatic analyzer that performs qualitative and quantitative analysis of a measurement component in a sample.

  An automatic analyzer is an apparatus that dispenses a sample and reagent in an arbitrary volume into a reaction vessel, reacts them in a reaction tank at a constant temperature, and quantifies the test substance based on changes in absorbance and turbidity. Widely used in the field of inspection. In general, when an automated analyzer dispenses a sample or reagent, the liquid level is automatically detected by a dispenser integrated with the liquid level sensor, and the dispenser is lowered into the liquid to suck the liquid. I do. At this time, if there are bubbles on the surface of the liquid, the bubbles are mistakenly detected as a liquid surface and stopped, and air is sucked, so that a predetermined liquid cannot be sucked. Therefore, when installing the reagent in the apparatus, it must be confirmed that there are no bubbles on the reagent surface.

  In order to suppress the generation of bubbles as much as possible, Patent Document 1 discloses a technique for setting a cylinder called chimney inside a reagent container.

JP 2005-83777 A

  On the other hand, since some components of the stored reagent are settled and uneven concentration occurs, the instruction manual for the reagent often states that the reagent is lightly inverted before use. However, since the bubbles were generated by mixing by inversion, it was necessary to remove the bubbles one by one with a cotton swab etc., which was very troublesome.

  An object of the present invention is to provide a reagent container that can be used in an automatic analyzer without removing bubbles on the surface of a reagent even if bubbles are generated in the reagent during transportation of the reagent or by inversion mixing.

  The present invention has a cylinder that shields air bubbles from entering the range in which the dispenser of the reagent container ascends and sucks, and when bubbles are likely to be generated during transportation or inversion mixing, the reagent is placed in the cylinder. It is characterized by preventing the bubbles from entering the cylinder by making the structure so as not to enter and allowing the reagent to enter the cylinder when in use.

  In the present invention, even if the reagent is mixed by inversion, bubbles do not enter the range in which the reagent is dispensed.

The whole structure schematic diagram of an automatic analyzer. 1 is an overview of a reagent container in Example 1. FIG. The internal structure of the reagent container in Example 2. The internal structure of the reagent container in Example 3. The internal structure of the cylinder of the reagent container in Example 3. The internal structure of the reagent container in Example 4.

  During transport and inversion mixing, the reagent was not allowed to enter the reagent dispensing range, and a reagent container was realized that allows the reagent to enter the dispensing range by a simple method immediately before use.

  FIG. 1 shows the configuration of the automatic analyzer. A plurality of sample containers 1 containing samples are placed on a sample disk 2. The sample disk 2 is controlled by the computer 3 via the interface 4. The sample disk 2 rotates and moves under the sample dispensing probe 5 in the order registered in advance, and a sample is dispensed into the reaction vessel 6 by a sample pump 7 connected to the sample dispensing probe. The reaction container 6 into which the sample has been dispensed moves through the reaction disk 9 connected to the constant temperature bath water heating device 8 to the first reagent addition position. The predetermined first reagent sucked from the reagent container 12 is added to the reaction container 6 moved to the first reagent addition position by the reagent pump 11 connected to the reagent dispensing probe 10. The reagent dispensing probe 10 is provided with a liquid level sensor, and automatically detects the liquid level of the reagent and sucks the reagent. The reaction vessel 6 after the addition of the first reagent moves to the position of the stirring device 13 and the first stirring is performed. The addition of the reagent is repeated a plurality of times as necessary. The reaction vessel 6 in which the contents are stirred passes the light beam emitted from the light source 14, and the absorbance at this time is detected by the multiwavelength photometer 15. The detected absorbance signal passes through an analog / digital (A / D) converter, enters the computer 3 via the interface 4, and is converted into the concentration of the sample. The density-converted data is printed out from the printer 17 via the interface 4 or displayed on the CRT 18 screen. After completion of photometry, the reaction vessel 6 moves to the position of the cleaning mechanism 19 and is discharged by the reaction vessel cleaning system 20 and then washed with water and used for the next analysis.

  FIG. 2 shows Example 1 of the reagent container for an automatic analyzer. The reagent container 12 has a reagent container port 101 and is filled with a reagent 106. The tube 102 is inserted and installed in an automatic analyzer, and used for analysis. The cylinder 102 has a bottom opening 103 and an upper opening 104, and the reagent enters the cylinder 102 from the bottom opening 103. The upper opening 104 is an air hole of the reagent container 12. In the present invention, the bottom opening 103 and the top opening 104 are covered with a film and inserted into the reagent container 12, and the lid 105 is covered. Since the reagent does not enter the cylinder 102 during transportation or when the reagent is inverted and mixed, bubbles do not enter the cylinder 102. When the automatic analyzer is used, the lid 105 is removed, and the reagent enters the cylinder 102 by peeling the film. By installing it on the reagent disk 26 as it is, it is possible to carry out analysis without the trouble of removing bubbles.

  FIG. 3 is a view of the inside of the reagent container as viewed from the side in the second embodiment. A support portion 107 is placed between the reagent container 12 and the lid 105 so that the cylinder 102 can be transported in a floating state. The bottom opening 103 of the cylinder 102 is blocked with a film. A protrusion 108 is provided on the bottom of the reagent container 12, and when installed in the apparatus, the lid 105 and the support 107 are removed, the tube 102 is pushed in to break the film, and the reagent enters the tube 2.

  FIG. 4-1 is a diagram of the inside of the reagent container as viewed from the side in Example 3. A wall 109 that blocks the upper opening 104 and a wall 110 that blocks the bottom opening 103 are added to the reagent container 12 along the outer diameter of the cylinder 102. FIG. 4B is a diagram of the bottom opening as viewed from above. The bottom opening 103 has a smaller opening than the first embodiment so that the wall 110 can be covered. When the tube 102 is used, the tube 102 is rotated so that the opening 103 is displaced from the walls 109 and 110, and the reagent enters the tube 102.

  FIG. 5 is a view of the inside of the reagent container as viewed from the side in Example 4. An inner lid 111 substantially the same as the inner diameter of the cylinder 102 is added to the lid 105, and the opening 103 of the cylinder 102 is blocked during transportation. By removing the lid 105 at the time of use, the opening 103 is opened, and the reagent is allowed to enter the cylinder 102.

DESCRIPTION OF SYMBOLS 1 Sample container 2 Sample disk 3 Computer 4 Interface 5 Sample dispensing probe 6 Reaction container 7 Sample pump 8 Thermostatic bath water heating apparatus 9 Reaction disk 10 Reagent dispensing probe 11 Reagent pump 12 Reagent container 13 Stirrer 14 Light source 15 Multiwavelength photometer 16 Keyboard 17 Printer 18 CRT
19 Cleaning mechanism 20 Reaction container cleaning system 101 Reagent container port 102 Tube 103 Bottom opening 104 Upper opening 105 Lid 106 Reagent 107 Supporting part 108 Protrusion 109 Upper wall 110 Bottom wall 111 Inner lid

Claims (4)

A reagent container for storing a reagent, and an opening having an inner diameter through which a nozzle immersed in the reagent can enter in order to dispense a predetermined amount of the stored reagent;
A cylinder having an outer diameter substantially the same as the inner diameter of the opening and having openings at the top and a part of the bottom, and provided at the openings at the top and bottom of the cylinder, and peeled off when the reagent container is used. and a film that can,
A reagent container comprising an inner lid having the same outer diameter as the opening of the cylinder in the lid of the reagent container, and a structure in which the reagent enters the cylinder by removing the inner lid . The reagent container of claim 1,
A reagent container comprising a protrusion capable of opening a hole in the film by pushing the tube into the reagent container. The reagent container according to claim 2,
Reagent container during transport, characterized in that it comprises a support for supporting as the protrusion and the barrel away. The reagent container of claim 1,
Provided with a shielding wall around the cylinder, and when the cylinder is rotated about its long axis, the opening of the cylinder and the shielding wall are displaced so that the reagent enters the cylinder. A reagent container characterized by that.

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