WO2003059484A1 - Extractor, chemical analyzer, and chemical analyzing method - Google Patents
Extractor, chemical analyzer, and chemical analyzing method Download PDFInfo
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- WO2003059484A1 WO2003059484A1 PCT/JP2001/011620 JP0111620W WO03059484A1 WO 2003059484 A1 WO2003059484 A1 WO 2003059484A1 JP 0111620 W JP0111620 W JP 0111620W WO 03059484 A1 WO03059484 A1 WO 03059484A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/025—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having a carousel or turntable for reaction cells or cuvettes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502738—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by integrated valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
- B01L2200/0621—Control of the sequence of chambers filled or emptied
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0636—Integrated biosensor, microarrays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
- B01L2400/0409—Moving fluids with specific forces or mechanical means specific forces centrifugal forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/06—Valves, specific forms thereof
- B01L2400/0622—Valves, specific forms thereof distribution valves, valves having multiple inlets and/or outlets, e.g. metering valves, multi-way valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/06—Valves, specific forms thereof
- B01L2400/0694—Valves, specific forms thereof vents used to stop and induce flow, backpressure valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N2035/00465—Separating and mixing arrangements
- G01N2035/00495—Centrifuges
- G01N2035/00504—Centrifuges combined with carousels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0439—Rotary sample carriers, i.e. carousels
- G01N2035/0446—Combinations of the above
- G01N2035/0449—Combinations of the above using centrifugal transport of liquid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/04—Details of the conveyor system
- G01N2035/0439—Rotary sample carriers, i.e. carousels
- G01N2035/0451—Rotary sample carriers, i.e. carousels composed of interchangeable sectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/07—Centrifugal type cuvettes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1079—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices with means for piercing stoppers or septums
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/11—Automated chemical analysis
- Y10T436/111666—Utilizing a centrifuge or compartmented rotor
Definitions
- the present invention (background art relates to a chemical analysis apparatus and a chemical analysis method for analyzing a component that issued extraction device and extraction for extracting a specific component in a liquid sample
- a method for purifying and separating a nucleic acid mixture by chromatography is described in Japanese Patent Application Laid-Open No. 8-501321. Have been.
- a nucleic acid mixed solution is adsorbed onto an inorganic substrate such as silica gel from an aqueous solution containing a high concentration of salt, washed with a washing solution, and nucleic acids are eluted with a liquid containing a low concentration of salt.
- Silica gel is fixed in a hollow cylindrical column, and a solution of the nucleic acid mixture to be separated is poured, and the solution is passed through an inorganic substrate by suction or centrifugation.
- WO 00/78445 discloses a microstructure and a method for inspection using amplification.
- the DNA mixture is passed through a glass filter as an inorganic substrate by using the method for purifying and separating a nucleic acid mixture described in Japanese Patent Application Laid-Open No. 8-501321, and then a washing solution and Only the DNA is recovered by passing through the eluate.
- the glass filter is provided on a rotatable structure, and reagents such as washing liquid and eluent are held in each reagent reservoir in the same structure.
- each reagent flows by the centrifugal force generated by the rotation of the structure, and the reagent passes through the glass filter by opening a valve provided in the fine flow path connecting each reagent reservoir and the glass filter.
- each reagent is opened by opening a valve provided in a fine flow path connecting each reagent reservoir and the glass filter. It flows under the action of centrifugal force and passes through a glass filter.
- a valve that melts when heated is used for the valve, the reagent that has passed may remain in the valve and contaminate the recovered DNA. That is, the DNA mixture and washing solution remaining in the valve may flow into the valve during the process in which the eluent is passed through the glass filter by centrifugal force, with the DNA mixture and washing solution remaining in the valve.
- nucleic acid mixture is poured into a cylindrical hollow column on which silica gel is fixed, and centrifugal force is used. Only nucleic acid is recovered by passing multiple reagents after passing the nucleic acid mixture through silica gel.How to inject each reagent into the hollow column and recover the washing solution and eluate through silica gel are described below. Not disclosed.
- An object of the present invention is to provide an extraction device capable of extracting a specific component in a liquid sample with high purity, or a chemical analysis device and a method for analyzing the extracted component, by solving the above problems. .
- the above problem can be solved by providing a reagent outlet for supplying a reagent to the capturing member, and providing a reagent control unit for controlling the flow of the reagent upstream of the reagent outlet.
- the reagent control section can be configured by having a bent flow path portion such that the flow path connected to the outlet of the container returns to the rotation center side from the position of the outlet.
- the present invention is characterized in that the analysis disk is configured in a divided shape, for example, configured in a fan shape or a rectangular shape and mounted on a rotatable structure.
- a reagent outlet for supplying a reagent to the capture member is provided, and a part of the flow path connecting the reagent outlet and the capture member is provided such that the downstream side of the flow path is closer to the rotation center than the upstream side of the flow path.
- the downstream side of the flow path be located closer to the center of rotation than the reagent outlet.
- a plurality of washing liquids and eluents are separately held as reagents, and each reagent is captured.
- This problem can be solved by providing a reagent outlet for supplying to the trapping member, and positioning the reagent supply port of the cleaning liquid used in the subsequent cleaning step closer to the rotation center.
- the reagent holding portions communicate with each other in the structure.
- the reagent control unit has an openable vent hole and a through hole mechanism.
- the reagent control unit is a reagent dispenser.
- a plurality of rotatably supported structures are arranged in a circumferential direction with respect to another rotating structure.
- the term “reagent” includes the washing liquid and the eluent, but when it is necessary to specifically indicate the reagent, the reagent is specifically indicated by the washing liquid, the eluent or the mixed liquid.
- FIG. 1 is an overall configuration diagram of a chemical analyzer according to the present invention.
- FIG. 2 is a configuration diagram of an analysis device according to an embodiment of the present invention.
- FIG. 3 is a configuration diagram of a flow path unit according to an embodiment of the present invention.
- FIG. 4 is a configuration diagram of another example of the embodiment shown in FIG.
- FIG. 5 is an explanatory diagram of the operation of the blood cell separation unit according to the embodiment of the present invention.
- FIG. 6 is a sectional view of an analysis device according to an embodiment of the present invention.
- FIG. 7 is a top view of the analysis device according to the embodiment of the present invention.
- FIG. 8 is an explanatory diagram of the operation of the mixing section according to the embodiment of the present invention.
- FIG. 9 is a diagram for explaining the operation of the eluent liquid collecting section according to the embodiment of the present invention.
- FIG. 10 is an explanatory diagram showing a procedure of an analyzing operation according to the embodiment of the present invention.
- FIG. 11 is a circuit diagram of a positioning mechanism according to the embodiment of the present invention.
- FIG. 12 is a timing chart of the positioning operation according to the embodiment of the present invention. It is.
- FIG. 13 is a top view of the analysis device according to the embodiment of the present invention.
- FIG. 14 is an overall configuration diagram of the gene analyzer according to the embodiment of the present invention.
- FIG. 15 is an explanatory diagram showing a procedure of an analyzing operation according to the embodiment of the present invention.
- FIG. 1 is an overall structural diagram of a gene analyzer according to the present invention.
- the analyzer 100 controls the main body 1, the analysis disk 2, the operating device 4 equipped with a measuring device and an operating device, and the control and recording that controls the entire device and records the measurement results. Device (not shown).
- two analysis disks 2 (2 a, 2 b) are shown, but only one may be used.
- the analysis disk 2 is composed of a holding disk 1 2 rotatably supported by a motor 1 1 (1 1 a, lib), and a plurality of fan-shaped analysis devices positioned by protrusions 1 2 1 provided on the holding disk 12.
- 10 and Six analytical devices 10 are mounted on each holding disk 12, each forming about 60 ° toward the center of the sector (the center of rotation), which is almost 360 ° in total. °.
- the holding disk 12 has an upwardly directed wall on the outer circumference, and has a tray shape as a whole.
- An optical window 122 is provided in parallel with the projection 122 so as to penetrate therethrough.
- the sector disk shape includes a semicircular disk shape.
- This device is equipped with a structure such as a rotatably supported disk, and as described below, this structure is provided with a capturing part for capturing a specific chemical substance in the sample, and the extraction device is provided. Be composed.
- the operating device 4 comprises a support 9 and an upper optical device 14 which is held at the upper side of 9 (9 a), and another operating device (not shown) comprises a lower optical device 15, respectively.
- the upper optical device 14 and the lower optical device 15 are used for heating a liquid and detecting a target substance (specific chemical substance) in the liquid as described later.
- the support 9 (9 b) is provided with a punch 13, which can punch holes in the analysis device 10 respectively. With this, the flow of the liquid is controlled as described later, and a control unit is configured.
- FIG. 2 is a configuration diagram of the analysis disk 2.
- the analysis disk 2 is configured by joining the upper cover 20, the flow path section 30, and the lower cover 40.
- the channel section 30 forms the wall 31 described above.
- the upper cover 20 extends from the center 0 of the sector toward the outer periphery G, from the sample inlet 210, reagent inlets 220, 230, 240, 250, 260, 270, and these notes. Vent holes 2202, 221, 231, 241, 251, 261, 271, 282, 292 are provided in the vicinity of the inlet. Thus, the preparation of various reagents is prepared.
- the lower cover 40 has a positioning hole 460 and a flow path optical window 490.
- the analysis disk 2 is positioned by fitting the positioning holes 460 into the protrusions 121 of the holding disk 12.
- FIG. 3 shows the configuration of the flow path section 30.
- the embodiment of the flow path section 30 shown in FIG. 3 shows an extraction device for extracting the nucleic acid contained in the virus in the serum after separating the serum from the whole blood, and a chemical analyzer for further analysis.
- a sample container 310 one (narrowly defined) reagent container 3 2 is embedded in a part or whole from the center 0 (also called the main side) of the sector toward the outer periphery G.
- serum holding section 3 1 2, serum separation section 3 1 1 are located on the negative side (upper side in the figure), and sample vessel 3 10, third washing water vessel 3 50, 2nd on the other side
- a washing water container 340 and a first washing water container 330 are provided, and an analysis unit is provided at the center.
- the third washing container 350 and a mixing container 380 described later are collectively referred to as reagent containers.
- a storage container for chemical substances separated from the sample from the main part of the fan to the outer peripheral side inside the outer frame container for example, a serum storage container (serum holding unit 3 1 2)
- the arrangement position is determined on one side of the flow path section 30 which is the outer frame container. Adjacent to the serum separation unit 311. Then, some of the other reagent containers except the serum storage container are arranged to line up on the other side, and the remaining containers are lined up on one or the other side.
- An analysis unit which will be described later, is arranged on the outer peripheral side of these containers. The inlet of each container is provided on the main side of the fan, and the outlet is provided on the outer peripheral side.
- a waste liquid storage container 302 is provided on the outer periphery side of the analysis unit along a curve or a straight line along the outer periphery.
- a flow path connecting the containers as appropriate is provided, and the flow path is provided with a bent portion as described later.
- the analysis section is centered on the nucleic acid binding section 301, and the eluent container 3
- an eluent collection vessel 390 is provided on the downstream side
- an amplification solution storage vessel 370 is provided on the upstream side of the eluent collection vessel 390
- a waste liquid storage is provided on the downstream side.
- a container 302 is disposed largely along the outer periphery G.
- the reagent vessel 320 and the mixing vessel 380 are in a narrow flow path 410, the mixing vessel 380 and the nucleic acid binding part 301 are in a thin flow path 420, and the first washing water vessel 330 and the second The washing water container 340, the second washing water container 350, the eluent container 360, and the nucleic acid binding part 30.1 are connected by thin channels 430, 440, 450, and 460, respectively.
- a nucleic acid binding member is disposed in the nucleic acid binding portion 301, and the above-described capturing portion is formed, and an eluent collection container (liquid collection container) 390 is connected to the capturing portion.
- each container 320, 330, 340, 350, 360, 380, 370, 390 has a shape that protrudes to the outer periphery G side. It is provided on the side opposite to the rotation center side.
- FIG. 4 shows a modification of the analysis disk shown in FIG. 3, which is formed in a rectangular shape and symmetrically arranged on the holding disk 12 about the rotation center 0. The configuration is the same as that shown in FIG. 3, and description thereof will not be repeated.
- FIG. 5 shows the vertical arrangement of the sample container 310, serum separation unit 311, serum holding unit 312, and serum storage container 313.
- a serum storage container 313 is provided immediately below the serum holding unit 312.
- FIG. 6 is a cross-sectional view showing the vertical arrangement relationship of these containers and the respective ventilation holes.
- a sample container 310 is provided side by side below the reagent container 321, and extends in the direction of the serum separation unit 311 and the serum holding unit 312.
- Separated 314 is provided in the longitudinal direction over substantially the entire width of the serum separation section 311.
- centrifugal force acts from the rotation center side to the outer periphery G as shown by arrows in FIGS. 4 and 5.
- Fig. 7 shows the positional relationship of each container and each flow path from the center of rotation to the outer periphery G.
- Serum separator unit 3 1 1 whereas serum holder 3 12 is placed in X 3 line viewed from the center side, the nucleic acid binding portion 30 1 are arranged substantially X 5 line, and a large position more centrifugal force Is done.
- channels 410, 420, 430, 440, 450, 460, 470, and 480 are return portions 41 1, 42 1, 431, 44 1, 45 1, 46 1, 47 1, respectively, bent toward the center.
- Fig. 10 shows the flow of the extraction and analysis operations.
- each reagent inlet 220, 230, 240, 250, 260, 270 from the upper cover 20 of the analytical device 10. Dispense the reagent into each of the reagent containers 320, 330, 340, 350, 360, and 370 (Sl), and cover each reagent inlet. After injecting the necessary number of reagents into the analysis devices 10 according to the number of analyzes, the analysis devices 10 are mounted on the holding disk 12 (S2).
- FIG. 5 shows the flow state of this whole blood.
- the serum storage container 313 described below is located immediately below the serum storage unit 312, and the serum storage container 313 and the serum storage unit 312 communicate with each other at the serum outlet 315. In order to show the above, the serum storage container 313 is shown separated from the serum holding unit 312. The vertical position of the whole blood flow area is shown in the longitudinal section of the analysis disk (Fig. 6).
- FIG. 6 also shows a reagent container, a mixing section, and a waste liquid container described later.
- the injected whole blood 316 is held in the sample container 310.
- the holding disk 12. rotates (FIGS. 5 (b) and 6 (b))
- the whole blood 316 flows into the blood cell separation section 311 by centrifugal force.
- a separating agent 314 has been previously injected into the blood cell separation section 311.
- the specific gravity of the separating agent 314 is adjusted to be larger than serum and smaller than blood cells.
- S5 Separation from serum 318 (S5) (FIGS. 5 (c) and 6 (c)).
- S6 When the rotation of the motor 11 is stopped (S6), only the serum flows out from the serum holding unit 312 through the serum outlet 315 to the serum storage container 313 just below (No. 5 (d ) Figure and Figure 6 (d)).
- each reagent container on the upper cover is covered and air is It cannot be entered.
- each reagent tends to flow out of the outer periphery of the reagent container due to centrifugal force
- the pressure in the reagent container drops because air does not enter the container, and the reagent cannot flow out in proportion to the centrifugal force.
- the pressure in the reagent container gradually decreases, and when the pressure drops below the saturated vapor pressure of the reagent, bubbles are generated. Therefore, as shown in FIG. 7, the bent channel structure (return channel portions 410, 420, FIG.
- each reagent (reagent 3 2 1 in FIG. 6) does not flow while being held in the reagent container 3 20.
- the perforator 13 When the serum separation operation has been completed and the serum 3 18 has been stored in the serum storage container 3 13, the perforator 13 then drills a hole in the lid of the vent hole on the top of each reagent container. Rotate to allow each reagent to flow by centrifugal force.
- a lysis solution for dissolving the virus membrane protein in the serum is dispensed into the lysis solution container 320.
- the drilling machine 13 made a hole in the lid of the solution vent 22 1 (S 7), and then rotating the motor 11 (S 8)
- the solution was dissolved by the action of centrifugal force.
- the solution flows from the reagent container 320, which is a container, into the mixing container 380 via a flow path 410 having a solution returning portion 4111.
- the serum in the serum storage container 3 13 also flows by the action of centrifugal force and flows into the mixing container 380.
- FIG. 8 shows how the serum and the lysate flow into the mixing vessel 380.
- the mixing vessel 380 communicates with the serum storage vessel 3 13 at the serum outflow channel 3 19, communicates with the lysis solution storage vessel 3 20 at the lysate outflow channel 329, and flows through the mixing vessel. It communicates with the outside through the mixing vessel vent hole 2 82 (Fig. 2) via the passage 3 83.
- the flow path structure (the mixed solution) is used to return the mixed solution of serum and lysis solution 381 to the inner circumference once. Due to the return flow path 382), the mixed solution is temporarily held in the mixing vessel 380 (FIG. 8 (a)), and the serum and the lysis solution are sufficiently mixed in the mixing vessel 380.
- FIG. 8 (b) the amount of the mixed solution in the mixing vessel 380 increases, and the nucleic acid binding section 301 (Fig. 3). .
- the lysing solution functions to dissolve the membrane from the virus or bacteria in the serum to elute the nucleic acid, but further promotes the adsorption of the nucleic acid to the nucleic acid binding part 301.
- a reagent guanidine hydrochloride may be used for elution and adsorption of DNA, and guanidine thiosinate may be used for RNA, and as a nucleic acid binding member, a porous material of quartz or glass, a fiber filter, or the like. May be used.
- the eluate recovery container 390 communicates with the amplifying solution storage container 370 (FIG. 3) through the amplifying solution outflow channel 379, and the eluent collection container vent line 3 After passing through 93, it communicates with the outside through the eluate collection container vent 2 92 (Fig. 2).
- the waste solution 391 after passing through the nucleic acid binding section 301 is once held in the eluate recovery container 39.0 because of the waste solution return flow path 392 as in the mixing container 380.
- the waste liquid eventually passes over the innermost peripheral side of the waste liquid return flow path 392 as shown in Fig. 9 (a). Then, it flows out to the waste liquid storage container 302 (FIG. 3) via the waste liquid outflow channel 399.
- the motor 11 was stopped (S 10), and a hole was made in the lid of the first cleaning liquid vent 2 3 1 for supplying air to the first cleaning liquid container 3 30 with the drilling machine 13 ( After S 1 1), when the motor 11 is rotated again (S 1 2), the first cleaning liquid has a first cleaning liquid return portion 4 3 1 from the first cleaning liquid container 3 30 due to the action of centrifugal force. It flows into the nucleic acid binding portion 301 via the flow path 430, and cleans unnecessary components such as proteins attached to the nucleic acid binding member (S13).
- the first washing solution for example, the above-mentioned solution or a solution in which the salt concentration of the solution is reduced is used. Just use it.
- the waste liquid after the washing flows out to the waste liquid storage container 302 through the eluent liquid recovery container 390 similarly to the above-mentioned mixed liquid.
- the same cleaning operation is repeated a plurality of times.
- the second cleaning liquid flow for supplying air to the second cleaning liquid container 3400 by the drilling machine 13 while the motor is stopped (S14).
- a hole is made in the lid of the pore 24 1 (S 15), and the module 11 is rotated again (S 16) to wash unnecessary components such as salts attached to the nucleic acid binding member.
- the second cleaning liquid for example, ethanol or an aqueous ethanol solution may be used.
- a hole is formed in the lid of the third cleaning solution vent hole 251 for supplying air to the third cleaning solution container 350, and unnecessary components such as salts attached to the nucleic acid binding member are washed again.
- the third cleaning liquid for example, an ethanol or ethanol aqueous solution may be used. Contamination can be reduced by running the wash water in order from the first wash water.
- the process proceeds to the nucleic acid elution step (S17).
- the eluent is a solution that elutes the nucleic acid from the nucleic acid binding member, and may be water or an aqueous solution whose pH is adjusted to 7 to 9. In particular, it is desirable to heat to 40 degrees or more to make elution easier. The heating may be performed by using the upper optical device 14 shown in FIG. 1 and irradiating light from above the eluent container 360.
- the eluent After passing through the nucleic acid binding member, the eluent flows into the eluate collection container 390. If the volume of the eluent is made sufficiently smaller than the volume of the eluent recovery container 390, the eluent will flow to the very bottom of the flow path 490 having the waste liquid return portion 491, as shown in FIG. 9 (b). It cannot exceed the inner circumference and is retained in the eluate recovery container.
- a hole is made in the lid of the amplification solution vent hole 271 for supplying air to the amplification solution storage container 370 with the drilling machine 13 (S18).
- the amplification solution is a reagent for amplifying and detecting a nucleic acid, and contains .doxynucleoside triphosphate DNA synthase, a fluorescent reagent, and the like.
- heating may be performed by irradiating light from above the eluate recovery container 390 using the upper optical device 14.
- the lower optical device 15 is moved below the eluate liquid collecting container 3900, and for example, the amount of fluorescent light is detected.
- the holding disk 12 At the time of perforation, heating, and detection, the holding disk 12 must be stopped at a predetermined position. As shown in Fig. 11, the holding disk 12 is provided with a positioning projection 17, the position detector 16 detects the rotation position of the holding disk, and the controller 18 controls the motor. 11. Control the rotation of 1 and the rotation and vertical movement of the drilling machine 13 and the rotation, irradiation, and detection of the upper optical device 14 and the lower optical device 15.
- FIG. 12 shows the operation timing of the drilling machine 13.
- the holding disk 12 reduces the rotation speed after the flow of whole blood or each reagent is completed, and maintains the low-speed rotation for positioning.
- the position detector 16 detects the positioning projection 17
- the holding disc 12 is stopped (S 2 2), and the punch 13 is lowered to make a hole in the lid of the vent hole of each reagent storage container. After that, it rises again.
- the holding disk 12 after piercing rotates at such a low speed that the reagent does not flow out of the reagent storage container after piercing, and the position of the next analysis disk, that is, 60 degrees when six analysis disks are mounted. It rotates and stops, and repeats the same drilling operation.
- the location of the analysis disk may be determined by, for example, irradiating light from the flow path optical window 490 with the lower optical device and examining the reflected light. After all analytical disks have been drilled, the holding disk rotates at a high speed to allow the reagents to flow.
- Serum / Lysate flow (S41), Serum / Lysate mixture (S42), Mixture flow (S43), Nucleic acid binding member passing (Binding) (S44), To waste liquid section It is performed through each step of flow (S45).
- Washing is performed through the steps of washing liquid flow (S51), passing through a nucleic acid binding member (washing) (S52): flowing to a waste liquid part (S53).
- the elution is performed through the steps of eluent flow (S61), passage through nucleic acid binding member (elution) (S62): eluent retention (S63).
- the amplification is performed through the steps of amplifying solution flow (S71) and nucleic acid amplification (S72).
- the cleaning liquid flows and the eluate recovery container May be mixed into 390 and inhibit the amplification reaction. Therefore, in addition to preventing the liquid from remaining by devising the flow control mechanism of the reagent as in the above invention, even if the residual liquid is generated, it may be prevented from flowing into the eluate liquid collecting container. For example, if the structure is such that the reagent is once returned to the inner peripheral side as in the first washing liquid return flow channel 430 shown in FIG. The liquid remaining in the eluent is retained in the first cleaning liquid return flow channel 430 and does not flow to the eluent liquid recovery container side.
- a first cleaning liquid temporary holding container (washing liquid temporary holding container) 333 is provided downstream of the channel 430 having the first cleaning liquid return portion 431, and further downstream therefrom. If a flow path 334 having a primary cleaning liquid return part 335 for once returning the cleaning liquid to the inner peripheral side is provided, even if the liquid remaining on the upstream side of the first cleaning liquid temporary holding vessel 333 flows out. Since the first washing liquid is held in the temporary holding container 3 3 3, it does not flow to the eluent liquid collecting container side ( according to the embodiment of the present invention, the liquid remains in the reagent storage container or the middle of the flow path).
- the flow of the reagent is controlled by opening the vent hole by the perforator, but a reagent dispensing mechanism may be used. That is, as shown in FIG. 14, a reagent dispenser 19 is added, and a predetermined reagent is dispensed from each reagent bottle 400 into the reagent storage container shown in FIG. Rotate the disk to make the reagent flow.
- Figure 15 shows the flow.
- FIG. 15 the steps are substantially the same as the steps shown in FIG. 9 (a), and the same steps are denoted by the same reference numerals and description thereof will not be repeated. Similar processes are numbered with "A”.
- the flow starts from the analysis disk device (S2). Dissolution solution dispensing (S7A) is employed instead of the solution solution perforation (S7), and the reagent dispenser 9 dispenses the reagent.
- a first cleaning liquid dispensing (S11A) is performed instead of the first cleaning liquid vent hole (S11).
- Eluent dispensing (S15A) is performed instead of eluent vent holes (S15).
- the chemical analyzer can be configured to be portable, so bring it near a hospital medical bed, that is, close to the patient and the subject, and perform a whole blood test while performing a medical examination. Becomes possible.
- Step S2 after injecting the reagent into a required number of analysis devices according to the number of analysis, the analysis device 10 is mounted on the holding disk 12. Then, the sample is put into the sample container 310.
- one or two analytical devices will be used for immediate inspection, but when these analytical devices are mounted on the structure, the dummy analytical device will be placed on the opposite side of the surface. It is advisable to place a balance (place a balance sheet) on it to improve the inspection accuracy.
- Reagents are charged into the analysis device in advance and sealed. Then, a reagent or other liquid is injected into the dummy analysis device as a dummy and sealed. As a result, the disturbance phenomenon due to rotation is reduced.
- a storage container for a chemical substance which has an outer frame container and a lid for covering the outer frame container, and which is located inside the outer frame container and separated from the sample from the central portion to the outside, is one of the two. And some of the reagent containers except for the storage containers are arranged on the other side, the remaining containers are arranged on one or the other side, and the analysis unit is arranged on the outer peripheral side of these containers.
- the inlet portion was provided on the center side and the outlet portion was provided on the outside, a waste liquid storage container was provided outside the analysis portion, and a flow path connecting the storage container and the washing liquid container with the analysis portion was formed.
- At least two analytical devices are used, one is filled with reagent in a reagent container and sealed, and the other is filled with a dummy liquid and sealed and placed on a portable structure driven by a module. And put the sample in the sample container Which are sealed, chemical analysis method for performing a chemical analysis in accordance with the rotation of the structure is provided.
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002219551A AU2002219551A1 (en) | 2001-12-28 | 2001-12-28 | Extractor, chemical analyzer, and chemical analyzing method |
JP2003559642A JP3952019B2 (ja) | 2001-12-28 | 2001-12-28 | 抽出装置および化学分析装置並びに化学分析方法 |
US10/500,385 US7662340B2 (en) | 2001-12-28 | 2001-12-28 | Extractor chemical analyzer and chemical analyzing method |
CNB018239420A CN100382870C (zh) | 2001-12-28 | 2001-12-28 | 提取装置与化学分析装置及化学分析方法 |
PCT/JP2001/011620 WO2003059484A1 (en) | 2001-12-28 | 2001-12-28 | Extractor, chemical analyzer, and chemical analyzing method |
EP01275132A EP1459795A4 (en) | 2001-12-28 | 2001-12-28 | EXTRACTOR, CHEMICAL ANALYZER AND CHEMICAL ANALYSIS PROCESS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2001/011620 WO2003059484A1 (en) | 2001-12-28 | 2001-12-28 | Extractor, chemical analyzer, and chemical analyzing method |
Publications (1)
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WO2003059484A1 true WO2003059484A1 (en) | 2003-07-24 |
Family
ID=11738094
Family Applications (1)
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PCT/JP2001/011620 WO2003059484A1 (en) | 2001-12-28 | 2001-12-28 | Extractor, chemical analyzer, and chemical analyzing method |
Country Status (6)
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---|---|
US (1) | US7662340B2 (ja) |
EP (1) | EP1459795A4 (ja) |
JP (1) | JP3952019B2 (ja) |
CN (1) | CN100382870C (ja) |
AU (1) | AU2002219551A1 (ja) |
WO (1) | WO2003059484A1 (ja) |
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JP2004212050A (ja) * | 2002-05-08 | 2004-07-29 | Hitachi High-Technologies Corp | 化学分析装置及び遺伝子診断装置 |
JP2011013237A (ja) * | 2003-12-12 | 2011-01-20 | Three M Innovative Properties Co | 可変性バルブ装置および方法 |
JP2007514163A (ja) * | 2003-12-12 | 2007-05-31 | スリーエム イノベイティブ プロパティズ カンパニー | 可変性バルブ装置および方法 |
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JP2005180983A (ja) * | 2003-12-17 | 2005-07-07 | Hitachi High-Technologies Corp | 化学分析装置および化学分析用構造体 |
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JP2005300292A (ja) * | 2004-04-09 | 2005-10-27 | Hitachi High-Technologies Corp | 生体試料成分検出法及びその装置 |
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EP1584917A3 (en) * | 2004-04-09 | 2008-01-30 | Hitachi High-Technologies Corporation | Detection method and detection apparatus of substance in biological sample |
JP2006194843A (ja) * | 2005-01-17 | 2006-07-27 | Hitachi High-Technologies Corp | 化学分析装置および化学分析カートリッジ |
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JP2009139369A (ja) * | 2007-11-16 | 2009-06-25 | Rohm Co Ltd | マイクロチップ |
JP2009276083A (ja) * | 2008-05-12 | 2009-11-26 | Rohm Co Ltd | マイクロチップ |
JP2019519798A (ja) * | 2016-06-21 | 2019-07-11 | ユニスト(ウルサン ナショナル インスティテュート オブ サイエンス アンド テクノロジー) | 微細流体装置 |
JP2021004899A (ja) * | 2016-06-21 | 2021-01-14 | ユニスト(ウルサン ナショナル インスティテュート オブ サイエンス アンド テクノロジー) | 微細流体装置 |
US11484883B2 (en) | 2016-06-21 | 2022-11-01 | Unist (Ulsan National Institute Of Science And Technology) | Microfluidic device |
Also Published As
Publication number | Publication date |
---|---|
EP1459795A1 (en) | 2004-09-22 |
US7662340B2 (en) | 2010-02-16 |
US20050095172A1 (en) | 2005-05-05 |
AU2002219551A1 (en) | 2003-07-30 |
CN1582191A (zh) | 2005-02-16 |
JPWO2003059484A1 (ja) | 2005-05-19 |
EP1459795A4 (en) | 2011-07-06 |
JP3952019B2 (ja) | 2007-08-01 |
CN100382870C (zh) | 2008-04-23 |
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