WO2012036296A1 - カートリッジおよび自動分析装置 - Google Patents
カートリッジおよび自動分析装置 Download PDFInfo
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- WO2012036296A1 WO2012036296A1 PCT/JP2011/071304 JP2011071304W WO2012036296A1 WO 2012036296 A1 WO2012036296 A1 WO 2012036296A1 JP 2011071304 W JP2011071304 W JP 2011071304W WO 2012036296 A1 WO2012036296 A1 WO 2012036296A1
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- cartridge
- reagent
- chamber
- sample
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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
- G01N35/00029—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with flat sample substrates, e.g. slides
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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
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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
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5085—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates
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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
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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
- G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
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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
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00732—Identification of carriers, materials or components in automatic analysers
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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
- B01L2300/04—Closures and closing means
- B01L2300/041—Connecting closures to device or container
- B01L2300/044—Connecting closures to device or container pierceable, e.g. films, membranes
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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
- B01L2300/0654—Lenses; Optical fibres
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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
- B01L2300/0848—Specific forms of parts of containers
- B01L2300/0858—Side walls
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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
- G01N2021/0325—Cells for testing reactions, e.g. containing reagents
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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
- G01N2021/0325—Cells for testing reactions, e.g. containing reagents
- G01N2021/0328—Arrangement of two or more cells having different functions for the measurement of reactions
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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
- G01N2021/0378—Shapes
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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
- G01N2021/0378—Shapes
- G01N2021/0382—Frustoconical, tapered cell
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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
- G01N2021/0389—Windows
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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
- G01N35/00029—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with flat sample substrates, e.g. slides
- G01N2035/00099—Characterised by type of test elements
- G01N2035/00148—Test cards, e.g. Biomerieux or McDonnel multiwell test cards
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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
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00722—Communications; Identification
- G01N35/00732—Identification of carriers, materials or components in automatic analysers
- G01N2035/00792—Type of components bearing the codes, other than sample carriers
- G01N2035/00801—Holders for sample carriers, e.g. trays, caroussel, racks
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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
- G01N2035/0401—Sample carriers, cuvettes or reaction vessels
- G01N2035/0429—Sample carriers adapted for special purposes
- G01N2035/0436—Sample carriers adapted for special purposes with pre-packaged reagents, i.e. test-packs
Definitions
- the present invention relates to a cartridge for storing a sample whose absorbance or turbidity is to be measured, and an automatic analyzer for analyzing the absorbance or turbidity by measuring the sample when the cartridge is loaded.
- an automatic analyzer for analyzing a target substance contained in a sample is becoming widespread.
- a measurement sample prepared using a test sample and a reagent is irradiated with light, and a target such as fecal occult blood contained in the measurement sample based on the light transmitted through the measurement sample Analyze the substance.
- a measurement sample is adjusted in a cuvette (mixing container) set in an automatic analyzer, and the absorbance or turbidity of the measurement sample is measured by measuring the measurement part of the cuvette. It is.
- the present invention has been made in view of the above circumstances, and can automatically reduce the analysis time without adjustment even when the concentration of the specimen is too high, and has high measurement accuracy. And it aims at providing the cartridge.
- the present invention is a reagent storage / measurement cartridge that mixes and reacts a test sample and a reagent, and measures the reaction state by transmitted light
- a reagent storage / measurement cartridge comprising a plurality of transmitted light measurement chambers having different optical path lengths.
- the cartridge of the present invention may further include a sample storage chamber for storing a test sample, a tip storage chamber for storing a pipette tip, and a tool storage chamber for storing a seal crushing tool. Moreover, it is preferable that the cartridge of the present invention further includes an identifier in which information on an operation procedure from mixing of the test sample and the reagent to output of the measurement result is recorded. Furthermore, the cartridge of the present invention may be provided with reagent information display means for designating a chamber having the highest measurement effect from the plurality of transmitted light measurement chambers. In the cartridge of the present invention, at least one of the plurality of transmitted light measuring chambers can also be used as a container for the reagent or the test sample.
- the transmitted light measuring chamber is made of, for example, a cyclic polyolefin, and preferably has a transmittance of 70% or more in the range of 340 to 800 nm. Furthermore, the cartridge of the present invention is characterized in that a reagent is previously stored and sealed in at least one of the plurality of transmitted light measurement chambers.
- the cartridge of the present invention is characterized in that at least an identifier among the sample storage chamber, the chip storage chamber, the tool storage chamber, and the identifier is covered with a seal, and the sample storage chamber, the chip storage chamber, and the tool storage chamber The identifier is preferably covered with a seal.
- the present invention is an automatic analyzer in which the cartridge is loaded, and a pipette tip is attached to the tip, and the test sample is aspirated and discharged into the pipette tip and dispensed into a reagent chamber.
- the automatic analyzer of the present invention may further include a filter for adjusting the wavelength-intensity distribution of light from the light source in the same unit. Moreover, the automatic analyzer of the present invention is characterized in that the suction and discharge portions by the dispensing nozzle are positioned on the optical axis connecting the light source and the detector.
- the automatic analyzer according to the present invention can have a mechanism that separates the light received by the detector and independently measures the light intensity of each of the separated wavelength bands.
- the wavelength of the light projected on the mixture is preferably 340 nm to 800 nm.
- the automatic analyzer of the present invention may be provided with a mechanism for reading the operation procedure from the cartridge.
- the present invention provides a chamber containing a tool for processing a test sample and a reagent, and / or a chamber or well for processing the test sample and a reagent, and the processing There is provided a cartridge having an identifier in which information on a procedure is recorded, wherein at least the identifier is covered with a seal.
- the chamber, the well and the identifier are covered with a seal.
- the present invention is a cartridge sealing method characterized in that at least the identifier is covered with a seal in the cartridge according to (1) or (2) (a cartridge not covered with the identifier). .
- the present invention provides the test sample characterized in that the test sample contained in the cartridge is measured by subjecting the cartridge described in (1) to the automatic analyzer described in (2). This is an automatic analysis method. Further, the present invention provides an automatic analysis method for a test sample, characterized in that the test sample contained in the cartridge is measured by subjecting the cartridge according to (3) to a test sample measurement automatic analyzer. It is.
- a highly convenient automatic analyzer and its cartridge can be provided. Further, according to the automatic analyzer of the present invention, the process from mixing the test sample and the reagent to the measurement can be performed fully automatically.
- FIG. 1B is an external perspective view of the cartridge of FIG. 1A observed from the bottom side. It is the external appearance perspective view which observed the cartridge of this invention which concerns on the Example which has one measurement chamber from the bottom face side. It is the external appearance perspective view which observed the cartridge of this invention which concerns on the Example which has multiple measurement chambers from the bottom face side. It is a longitudinal cross-sectional view of the cartridge along the arrangement direction of the chamber. It is a longitudinal cross-sectional view of the cartridge along the direction orthogonal to the arrangement direction of the chambers.
- FIG. 8 is a functional block diagram of the automatic analyzer shown in FIG. 7. It is a flowchart showing operation
- the present invention is a cartridge for mixing and reacting a test sample and a reagent, containing a reagent for measuring the reaction state with transmitted light, and measuring the reaction state.
- This cartridge includes a plurality of transmitted light measuring chambers having different optical path lengths.
- the present invention is a cartridge including at least one measurement chamber for storing a mixture obtained by mixing a test sample and a reagent for use in photometry, wherein any one of the measurement chambers includes the measurement
- the present invention relates to a cartridge having an optical path length different from that of another measurement chamber in the cartridge including the chamber or a measurement chamber in the other cartridge.
- the present invention is an automatic analyzer in which the cartridge is loaded, and a dispensing nozzle that attaches a pipette tip to a tip, sucks the test sample into the pipette tip and dispenses it into a reagent chamber;
- An automatic analyzer comprising: a light source for projecting light onto the mixture; and a detector that receives light from the light source through the mixture.
- the present invention relates to a chamber containing a tool for processing a test sample and a reagent, and / or a chamber or well used for processing the test sample and a reagent, and information relating to the processing procedure.
- the present invention is a method for sealing a cartridge according to the present invention, wherein at least an identifier provided in the cartridge is covered with a seal in the cartridge of the present invention (one without an identifier covered).
- a cartridge including a chamber and / or well and an identifier and at least the identifier is covered with a seal is mounted on an automatic system for measuring the sample by reacting the reagent and the sample. Since the identifier is a recorded procedure from the start to the end of processing by the automatic system, the system cannot recognize the identifier information when the seal remains covered with the identifier. For this reason, it is necessary to peel off the covered seal to expose the identifier. As a result, if the identifier reading mechanism can recognize the identifier before driving the system, it is confirmed that the seal has been removed. That is, when the system recognizes the identifier, it can be confirmed that the seal has been removed.
- the cartridge 4 of the present invention has a cartridge body 4a.
- the tub cartridge body 4a includes at least one reagent storage chamber for storing a reagent.
- at least one of a sample storage chamber for storing a test sample and a reagent storage chamber for storing a reagent can be used as a chamber for measuring transmitted light.
- the reagent storage chamber serves as a transmitted light measurement chamber.
- FIG. 1A and FIG. 2 show a cartridge main body of an embodiment provided with three reagent storage chambers 31 to 33.
- each of the reagent storage chambers 31 to 33 has long openings 31a to 33a in a direction perpendicular to the arrangement direction (substantially left-right direction in FIG. 1A), and is perpendicular to the periphery of each opening. It is formed in a concave shape by a falling wall, and has measurement parts 31A to 33A at its lowest part.
- the measuring units 31A to 33A are arranged in the direction in which the reagent storage chambers 31 to 33 are arranged when the reagent storage chambers 31 to 33 are loaded in an automatic analyzer, which will be described later, and the reaction state in the mixture of the test sample and the reagent is measured.
- the cross section of the measurement portion 33A of the reagent storage chamber 33 is substantially the same size as the opening 31a.
- the cross sections of the measurement portions 32A and 31A become smaller in order as the reagent storage chambers 32 and 31 are formed. It has become.
- the optical path length of a certain reagent chamber is different from the optical path lengths of other reagent chambers.
- the reagent storage chambers 31 to 33 have different optical path lengths. Note that the walls of the reagent storage chambers 32 and 33 are inclined toward the measurement units 32A and 33A.
- the cartridge body 4a is formed with a sample storage chamber 26 for storing a test sample, and a chip storage chamber 22 for storing a pipette tip for dispensing a sample to be sucked into the reagent chamber and mixed. ing.
- a hermetic seal 4b for sealing the openings 31a to 33a of the reagent storage chambers 31 to 33 is provided to prevent the reagent in the reagent chamber from deteriorating and to prevent the reagent from leaking to the outside. Can do.
- a tool accommodating chamber 24 that accommodates a seal crushing tool for crushing the hermetic seal 4b can be further provided.
- a covering seal for covering at least the identifier 29, preferably the sample storage chamber 26, the chip storage chamber 22 and the tool.
- a covering seal 4c for covering all of the storage chamber 24 and the identifier 29 can be applied and sealed (FIG. 1B). This protects each chamber and its contents and identifiers from accidents caused by exposure of them, for example, external impacts during transportation and operation, and adhesion of impurities (such as dust), and the cartridge main body by reversal etc. It is possible to prevent the chips and tools accommodated in the cartridge from dropping out from 4a.
- the covering seal 4c is not particularly limited, and examples thereof include an aluminum seal and a polymer seal, and may be the same material as the hermetic seal 4b. In the case where the covering seal is made of a polymer, it is possible to use a material that becomes a material of a cartridge described later.
- the identifier 29 is a recording unit in which information regarding a series of operation procedures from mixing of the test sample and the reagent to outputting of the measurement result is recorded (details will be described later).
- FIG. 1B is a view showing a mode in which the sample storage chamber 26, the chip storage chamber 22, the tool storage chamber 24, and the identifier 29 are covered with one cover seal.
- the position where the covering seal 4c is affixed to the cartridge body 4a is the end of each side of the seal, but all four sides may be affixed or two opposite sides may be affixed.
- the seal may individually cover each chamber and identifier, or may cover the whole with one seal. It is also possible to cover each chamber with one seal and the identifier with another seal.
- FIG. 1B shows a mode in which one side of each chamber side and one side of the identifier side are pasted with a single covering seal 4c, and the end of the identifier side seal is peeled off.
- the present invention not only the form of the cartridge shown in FIG. 1A but also information on a series of operation procedures from the mixing of the test sample and the reagent to the output of the measurement result is recorded for other forms of cartridges.
- the identifier can be covered with a covering seal.
- an identifier is attached to a cartridge having a chamber and / or well for use in biological substance extraction or nucleic acid amplification, and sealing is performed. Can do.
- FIG. 1C is a cartridge including a chip used when a biological sample such as nucleic acid or protein or other test sample is extracted using magnetic particles.
- (a1) is a view showing a mode in which the chip of the cartridge is covered with one seal
- (b1) is a view in which the cover seal is removed
- (c1) is a chip accommodated in the accommodating portion. It is sectional drawing.
- the chip housed in the chamber of the cartridge includes a long chip for processing with magnetic particles, a short chip for sample processing, a short chip for sample extraction, and a seal crushing tool from the left side.
- the seal crushing tool is a tool for crushing a hermetic seal (for example, a laminate seal) in which the opening of the chip is sealed.
- FIG. 1D is a diagram showing a cartridge used for extraction of a test sample (for example, DNA or protein) or detection of the test sample.
- a2) is a view when the identifier is exposed by removing the covering seal covering the identifier in the cartridge in which the identifier and the well are separately coated with the covering seal
- (b2) is the covering seal.
- (C2) is a diagram showing a cross-section of the well provided in the cartridge.
- the wells shown in FIG. 1D are various reagent wells, for example, wells that contain specimens, wells that contain extraction reagents for extracting DNA from specimens, wells that contain buffers, and wash the extracted DNA.
- a well containing a washing solution for collecting DNA a well containing an elution solution for collecting DNA, a well containing a washing solution for washing a pipette tip, a well containing a lyophilized master mixture,
- a well containing a substrate solution used for fluorescence detection of the labeled DNA it can be used as a well for heat treatment, etc.
- These wells can be used alone or with the above contents. They are combined and arranged as appropriate.
- the opening and the identifier of each well are covered with, for example, a covering seal so that germs and the like do not enter the well before use and prevent the identifier from being exposed.
- a measurement system (measurement device) using such a cartridge is described in, for example, WO2010 / 074265.
- an identifier can also be given to the pretreatment cartridge for use in pretreatment for removing impurities from the sample to be measured in advance, and it can be covered with a covering seal.
- the “pretreatment cartridge” include a cartridge in which magnetic particles and a substrate liquid are previously stored in a well or a chamber. Such a pretreatment cartridge and a measurement system (measurement apparatus) using the cartridge are also described in WO2010 / 074265.
- an identifier can be given to a cartridge (FIG. 1E) including a well in which a reagent for nucleic acid amplification such as PCR is stored and a chamber in which a handling chip is stored.
- FIG. 1E (a3) is a covering seal for a chamber for storing a nucleic acid elution chip used for PCR handling, a chamber for storing a tool for crushing an aluminum laminate seal, and a chamber for storing a PCR tube cap. It is a covered figure, and the identifier is also covered by this seal.
- (b3) is a view with the covering seal peeled off, and (c3) is a cross-sectional view showing the chip accommodated in each chamber.
- a PCR system (measuring device) using such a cartridge is described in, for example, WO01 / 011364.
- the aluminum laminate seal is used for sealing the contents in the well and can be used separately from the covering seal.
- the seal is crushed by the seal crushing tool as described in FIG. 1A.
- the test sample automatic analysis method is characterized in that the cartridge shown in FIGS. 1C to 1E is subjected to the test sample measurement automatic analyzer to measure the test sample contained in the cartridge. Also provide.
- the reagent chambers should be the first, second, and third reagent storage chambers 31, 32, and 33 having different capacities and optical path lengths of the measurement unit. Can do.
- the cartridge including the first to third reagent storage chambers 31 to 33 has been illustrated, but the number of chambers is not limited thereto.
- one reagent chamber 130 may be provided.
- the reagent chamber may be different from the optical path length of the measurement chamber provided in another cartridge (not shown).
- a cartridge provided with first to fifth reagent storage chambers 111 to 115 having different optical path lengths may be used. However, there may be those having the same optical path length without making all the optical path lengths of the plurality of reagent storage chambers different.
- reagent storage chamber When there is one reagent storage chamber, mixing of the reagent and the sample to be tested and photometry are performed using this chamber. Further, when there are a plurality of reagent storage chambers, any one can be arbitrarily selected and used as a photometric chamber.
- each of these chambers has a longitudinal direction (substantially left-right direction in the drawing) from one end (left side in FIG. 1A) to the other end (also right side), as shown in FIGS.
- the sample storage chamber 26, the chip storage chamber 22, the tool storage chamber 24, and the first to third reagent storage chambers 31 to 33 are arranged in this order.
- the cartridges of the present invention are not limited to the above-described arrangement order, and the arrangement order can be arbitrarily changed according to the purpose of processing steps and the like.
- the cartridge body 4a shows pre-packed reagents (for example, a buffer solution and a substrate), reagent information for designating the reagent storage chamber having the highest measurement effect among the first to third reagent storage chambers 31 to 33, and the like.
- a display unit (display unit) 30 may be provided, and the user can recognize what kind of reagent is contained in the cartridge 4 based on the description of the display unit 30. .
- an identifier 29 for the automatic analyzer to identify the cartridge 4 when the cartridge 4 is loaded into an automatic analyzer described later can be provided in the area next to the display unit 30.
- an identifier such as a QR code (registered trademark) or a barcode that can be identified by an image sensor may be used, or an identifier such as an RFID that may be identified wirelessly may be used.
- the identifier 29 records information on a series of operation procedures of the automatic analyzer from mixing of the test sample and the reagent to analysis and output of the result. As a result, it is possible to read information about the operation procedure from the cartridge.
- FIG. 5 is a longitudinal sectional view of the cartridge along the chamber arrangement direction. As shown in the figure, in the first to third reagent storage chambers 31 to 33 formed in the cartridge body 4a, reagents for preparing a measurement sample by mixing with the sample stored in the sample storage chamber 26 are provided.
- a raised portion 28 having substantially the same height is formed around the openings 31a to 33a of the reagent storage chambers 31 to 33 and between the openings 31a to 33a, and a hermetic seal 4b is attached to the surface of the raised portions 28.
- the hermetic seal 4b may cover all the openings 31a to 33a as shown in FIG. 1 or may cover each of the openings 31a to 33a individually.
- the covering seal 4c can be applied to cover the sample storage chamber 26, the chip storage chamber 22, and the tool storage chamber 24. The covering seal 4c can be manually peeled off and removed by the user when loading the automatic analyzer.
- the sample stored in the sample storage chamber 26 is mixed to prepare a measurement sample (mixture of the test sample and the reagent), and the prepared measurement sample Is irradiated with light for measuring absorbance.
- the test sample and the first reagent are mixed to obtain the mixture 1
- the second reagent is mixed with the mixture 1 to obtain the mixture 2
- the mixture 2 is further mixed with the third reagent for measurement.
- a cartridge having three reagent storage chambers as shown in FIGS. 5 and 6 is used.
- the photometry there is an optimum optical path length depending on the properties of the test sample and reagent. Therefore, the chamber having the optical path length most suitable for photometry is used as the measurement chamber, and the sample and the reagent are mixed in the measurement chamber for photometry. Good.
- a cartridge having a number of (three) or more reagent storage chambers exceeding the number of times of mixing can be used.
- the reagent storage chamber containing the measurement sample is used. Photometry can be performed, and the remaining one reagent storage chamber (empty chamber) can be used as a photometry dedicated chamber.
- the measurement unit 31A of the first reagent storage chamber 31 includes an incident unit 31b that transmits light from outside the chamber to the inside of the chamber 31, and an emission that transmits light from the inside of the chamber 31 to the outside of the chamber.
- a portion 31c is formed.
- the inner wall of the entrance part 31a and the inner wall of the exit part 31c are separated by a distance d1, whereby the first reagent storage chamber 31 provides an optical path length d1 for the measurement sample prepared in the chamber. Will be.
- the measurement unit 32A of the second reagent storage chamber 32 includes an incident unit 32b that transmits light from the outside of the chamber to the inside of the chamber 32, and light from the inside of the chamber 32 to the outside of the chamber.
- the light emission part 32c which lets it pass is provided.
- the inner wall of the incident part 32a and the inner wall of the emission part 32c are separated by a distance d2, and the second reagent storage chamber 32 has an optical path longer than the optical path length d1 for the measurement sample prepared in the same chamber. Provide length d2.
- the measurement unit 33A of the third reagent storage chamber 33 includes an incident unit 33b that transmits light from outside the chamber to the inside of the chamber 33, and light from the inside of the chamber 33 to the outside of the chamber.
- the emission part 33c which lets it pass is provided.
- the inner wall of the incident portion 33a and the inner wall of the emission portion 33c are separated by a distance d3, and the third reagent storage chamber 33 has an optical path longer than the optical path length d2 for the measurement sample prepared in the chamber. Provide length d3.
- a chamber having an optimal optical path length can be used as a measurement chamber depending on the properties of the test sample and the reagent.
- the reagent can be stored, mixed, and photometric.
- the cartridge used in the present invention is made of a polymer material, and the cartridge body 4a is preferably integrally formed of a material having excellent light transmittance, such as a transparent polymer material.
- the light transmittance of the measurement chamber has a transmittance of 70% or more in a range of 340 to 800 nm, for example.
- polystyrene examples include polyethylene and ethylene- ⁇ -olefin copolymer, polystyrene, polycarbonate, polyester such as polyethylene terephthalate and polybutylene terephthalate, polyacetal, polyamide, polyphenylene ether, polyether sulfone, and cyclic.
- polyolefin, polysulfone, ethylene-vinyl acetate copolymer, polyvinyl chloride, polyphenylene sulfide, fluororesin, acrylic resin, and the like can be mentioned, and it is particularly preferable to use cyclic polyolefin.
- Various additives can be used in the production of a homopolymer or copolymer using a cyclic olefin monomer.
- Examples of the monomer constituting the cyclic polyolefin include monocyclic olefin monomers and bicyclic or higher polycyclic olefin monomers.
- the cyclic polyolefin includes a ring-opening polymer of a cyclic olefin monomer, a hydrogenated product of the ring-opening polymer, an addition polymer of the cyclic olefin monomer, and addition with other monomers copolymerizable with the cyclic olefin monomer.
- a copolymer etc. are mentioned. Among these, from the viewpoint of heat resistance, mechanical strength, etc., a hydrogenated product of a ring-opening polymer of a cyclic olefin monomer is preferable. Moreover, since a low adsorptive polymer is obtained, the cyclic olefin monomer which consists only of hydrocarbons is preferable.
- the cyclic olefin monomer is not particularly limited, and examples thereof include norbornene monomers and monocyclic cyclic olefin monomers.
- norbornene-type monomer what is necessary is just a monomer which has a unit derived from a norbornene structure in a monomer structure.
- these norbornene monomers may have a hydrocarbon group having 1 to 3 carbon atoms.
- Specific examples of the monocyclic olefin monomer include cyclohexene, cycloheptene, and cyclooctene. These cyclic olefin monomers can be used alone or in combination of two or more.
- the ring-opening polymer of a cyclic olefin monomer is obtained by polymerizing a cyclic olefin monomer by a metathesis reaction in the presence of a known ring-opening polymerization catalyst.
- the hydrogenated product of the ring-opened polymer of the cyclic olefin monomer is obtained by hydrogenating the ring-opened polymer with a known hydrogenation catalyst.
- examples of other monomers that can be addition copolymerized with a cyclic olefin monomer include ⁇ -olefins having 2 to 20 carbon atoms such as ethylene, propylene, 1-butene, and 1-hexene. These ⁇ -olefins can be used alone or in combination of two or more.
- An addition (co) polymer of a cyclocyclic olefin monomer can be obtained by polymerization using a known catalyst composed of a titanium, zirconium compound and an organoaluminum compound.
- Examples of the monocyclic olefin monomer used for the production of a cyclic olefin homopolymer or copolymer include, for example, monocyclic olefin monomers such as cyclopentene, cyclopentadiene, cyclohexene, methylcyclohexene, cyclooctene, and 1 to 3 monocyclic olefin monomers.
- monocyclic olefin monomers such as cyclopentene, cyclopentadiene, cyclohexene, methylcyclohexene, cyclooctene, and 1 to 3 monocyclic olefin monomers.
- Examples thereof include lower alkyl derivatives having a lower alkyl group such as a methyl group and an ethyl group, and acrylate derivatives.
- polycyclic olefin monomer examples include dicyclopentadiene, 2,3-dihydrocyclopentadiene, bicyclo [2,2,1] -hept-2-ene (norbornene) and its derivatives, tricyclo [4.3.0 .1 2,5] deca-3,7-diene (dicyclopentadiene), 7,8-tricyclo [4,3,0,1 2,5] dec-3-ene (methanolate tetrahydrofluorene), tetracyclo [4,4,0,1 2,5 , 1 7,10 ] dodec-3-ene (tetracyclododecene), tricyclo [4,3,0,1 2,5 ] -3-decene and derivatives thereof, Tetracyclo [4,4,0,1 2,5 ] -3-undecene and derivatives thereof, tetracyclo [4,4,0,1 2,5 , 1 7,10 ] -3-dodecene and
- norbornene derivatives include 5-methyl-bicyclo [2,2,1] -hept-2-ene, 5-methoxy-bicyclo [2,2,1] -hept-2-ene, and 5-ethylidene- Bicyclo [2,2,1] -hept-2-ene, 5-phenyl-bicyclo [2,2,1] -hept-2-ene, 6-methoxycarbonyl-bicyclo [2,2,1] -hept- 2-ene and the like can be mentioned.
- Examples of derivatives of tricyclo [4,3,0,1 2,5 ] -3-decene include 2-methyl-tricyclo [4,3,0,1 2,5 ] -3-decene, 5-methyl-tricyclo [ 4,3,0,1 2,5 ] -3-decene and the like.
- Examples of the derivative of tetracyclo [4,4,0,1 2,5 ] -3-undecene include 10-methyl-tetracyclo [4,4,0,1 2,5 ] -3-undecene.
- Hexacyclo [6,6,1,1 3,6, 1 10,13, 0 2,7, 0 9,14] Derivatives of 4-heptadecene, 12-methyl - hexacyclo [6,6,1,1 3,6, 1 10,13, 0 2,7, 0 9,14] -4-heptadecene, 1,6-dimethyl - hexacyclo [6,6,1,1 3,6, 1 10,13, 0 2 , 7, 0 9,14] -4-heptadecene, and the like.
- a cyclic polyolefin is at least one cyclic olefin monomer or at least one cyclic olefin monomer and another monomer (eg, ethylene, propylene, 4-methylpentene-1, cyclopentene, cyclooctene, butadiene, isoprene, A homopolymer or copolymer of at least one of styrene and the like.
- the homopolymer or copolymer is composed of the above-mentioned monomer, for example, a vanadium compound soluble in a hydrocarbon solvent as a catalyst and an organic compound. It can be obtained by polymerization using a known catalyst comprising an aluminum compound or the like.
- cyclic polyolefin is a single ring-opening polymer or copolymer of the above-mentioned monomer, and as a catalyst, for example, (1) a platinum group metal halide such as ruthenium, rhodium, palladium, osmium, platinum, nitrate (2) Catalysts consisting of transition metal compounds such as titanium, molybdenum and tungsten, and organometallic compounds of Group I to IV metals such as organoaluminum compounds and organotin compounds It can be obtained by homopolymerizing or copolymerizing the above monomers using a known catalyst.
- a platinum group metal halide such as ruthenium, rhodium, palladium, osmium, platinum, nitrate
- Catalysts consisting of transition metal compounds such as titanium, molybdenum and tungsten, and organometallic compounds of Group I to IV metals such as organoaluminum compounds and organ
- the homopolymer or copolymer obtained above has an unsaturated bond
- the homopolymer or copolymer is hydrogenated using a known hydrogenation catalyst.
- the hydrogenation catalyst include (1) a Ziegler type homogeneous catalyst composed of an organic acid salt such as titanium, cobalt and nickel and an organometallic compound such as lithium and aluminum, and (2) a platinum group metal such as palladium and ruthenium. Examples thereof include a supported catalyst supported on a carrier such as carbon or alumina, and (3) a complex catalyst of the platinum group metal.
- the above hydrogenated homopolymer or copolymer may be a ring-opening polymer of a bicyclic or higher polycyclic saturated hydrocarbon compound which may have a substituent having a polymerizable double bond, or Copolymers are included.
- polycyclic saturated hydrocarbon compounds examples include tricyclo [4,3,0,1 2,5 ] -decane, bis (allyloxycarboxy) -tricyclo [4,3,0,1 2,5 ] -Decane, bis (methacryloxy) -tricyclo [4,3,0,1 2,5 ] -decane, bis (acryloxy) -tricyclo [4,3,0,1 2,5 ] -decane, etc. It is done.
- the cartridge body may have a laminated structure having a plurality of different layers.
- the cartridge body may be formed by using a copolymer of a cyclic olefin monomer and another monomer such as ethylene as the first layer and a cyclic polyolefin obtained by polymerizing only the cyclic olefin monomer as the second layer. Good.
- the cartridge body When the cartridge body has a laminated structure, it may be formed by, for example, a double injection method.
- FIG. 7 is a perspective view showing an external appearance of the automatic analyzer, and shows a state in which four cartridges are loaded.
- the automatic analyzer 52 includes a main body 53 of a casing 56, a cartridge tray 58 mounted on the casing 56 and loaded with the cartridge 4 according to the present invention, and the cartridge tray 58. And a multi-unit 64 movably provided along the longitudinal direction.
- the housing 56 includes a movement guide 65 that is horizontally fixed to guide the movement of the multi-unit 64.
- the multi-unit 64 includes a preparation mechanism 36 that prepares a measurement sample, a photometry mechanism 37 that measures light transmitted through the measurement sample by projecting light onto the measurement sample, a movement control device 62, and the like. It is unitized. That is, the multi unit 64 is mounted on the same unit in which the dispensing nozzle, the light source, the filter, and the detector can move as a unit.
- the preparation mechanism 36 attaches a pipette tip to the tip, sucks the test sample stored in the sample storage chamber 26 of the cartridge into the pipette tip, and dispenses it into the reagent chamber, and suction and discharge of the nozzle 45 And a nozzle guide for controlling the movement of the nozzle 45 in the vertical direction (the pump and the nozzle guide are not shown).
- the multi-unit 64 can be freely moved in the X direction along the movement guide 65 by the movement control device 62, and the nozzle 45 can be arranged on each chamber.
- the photometric mechanism 37 includes a light source 47 and a light receiving unit (detector) 49, and can also include a filter 48 that adjusts the wavelength-intensity distribution of light from the light source 47.
- the light receiving unit 49 includes a spectroscopic element that splits the light transmitted through the measurement sample, a light receiving sensor that will be described later, and the like that receives the spectroscopic light split by the spectroscopic element.
- the light source 47 is disposed so as to face the light receiving unit 49, but it is preferable to place a filter 48 between the light source 47 and the light receiving unit 49. At the time of photometry, light is projected onto the reagent storage chamber (any one of the incident portions 31b to 33b) containing the measurement sample.
- a filament light bulb such as a tungsten lamp or a halogen lamp, a light emitting diode, or the like can be used.
- the wavelength-intensity distribution of the light from the light source 47 is adjusted by the filter 48 so that, for example, light having a wavelength (spectrum) of 340 to 800 nm, preferably 340 nm to 700 nm can be projected onto the measurement sample.
- the “wavelength-intensity distribution” is a spectrum of light that indicates the intensity of light for each wavelength component of light from a light source in which various wavelengths are mixed.
- the spectrum of light from the light source 47 can be adjusted. Examples of the mode of spectrum adjustment include making the spectral distribution of light from the light source 47 uniform, increasing or decreasing the wavelength light in a specific region, and cutting light in an unnecessary wavelength region.
- the light receiving unit 49 faces the emission units 31c to 33c of the reagent storage chambers 31 to 33 during photometry, and can receive light from the emission units 31c to 33c.
- the light received by the light receiving unit 49 is split by the spectroscopic element, and the spectroscopic light is received by a light receiving sensor described later.
- the photometric mechanism 37 includes a cartridge tray 58 such that the measurement units 31A to 33A in the reagent storage chambers 31 to 33 of the cartridge 4 loaded in the cartridge tray 58 are on the optical path P formed from the light source 47 to the light receiving unit 49.
- the positional relationship is defined.
- the arrangement of the nozzle 45 with respect to the photometry mechanism 37 is determined so that the optical path P formed from the light source 47 to the light receiving portion 49 exists on the extension of the movement direction Z (see FIG. 8).
- the suction and discharge portions of the dispensing nozzle can be positioned on the optical axis connecting the light source and the detector, and these can be located on the same axis.
- Handling (suction and discharge) and photometry by a nozzle such as mixing with a sample can be performed.
- photometry can be started immediately without moving the multi-unit 64 in the X direction, and handling by the nozzle 45 is performed. It is also possible to perform photometry at the same time.
- the cartridge tray 58 can hold a plurality of cartridges 4 in one or a plurality of rows and can be mounted in the housing 56.
- FIG. 7 shows an example in which four cartridges 4 are provided in one row, but the number of cartridges is not limited to four, and may be any plural rows of two or more rows.
- the nozzle 45 can be freely moved in the arrangement direction of the cartridges 4 by a moving guide 65 provided in the apparatus main body 53.
- the measurement items of the test sample include, for example, immunological test items using latex agglutination method, biochemical test items such as NAD and NADH, clinical test items such as GOT and GPT, or sewage or air Environmental test items such as components (NO, mercury, etc.) therein can be mentioned, but are not limited to these.
- the nozzle 45 can be equipped with a seal crushing tool 18 for crushing the sealing seal 4b. Desorption is appropriately performed by a chip mount controller of the apparatus main body 2 to be described later.
- the photometric mechanism 37 includes a light source 47, a filter 48 that cuts heat rays contained in the light from the light source and unnecessary wavelength region light, and adjusts the wavelength-intensity distribution of light in the visible region, a light receiving unit 49, and the like.
- the light for measuring absorbance is projected onto any one of the incident portions 31b to 33b of the first to third reagent storage chambers 31 to 33 provided in each cartridge 4, and the incident portion to which the light is projected; The light emitted from the emitting parts 31c to 33c facing each other is measured.
- the light receiving unit 49 includes a spectroscopic element that splits the light transmitted through the measurement sample, a light receiving sensor that will be described later, and the like that receives the spectroscopic light split by the spectroscopic element.
- the light source 47 is preferably disposed so as to face the light receiving portion 49 through the filter 48, and light is incident on any of the incident portions 31b to 33b of the reagent storage chambers 31 to 33 at the time of photometry.
- the light receiving unit 49 is opposed to the emitting unit corresponding to the incident unit of the reagent containing chambers 31 to 33, and can receive light from any of the emitting units 31c to 33c.
- the soot analyzing device 52 can analyze the target material in the sample based on the measured intensity signal from the light receiving unit 49.
- the soot analyzing device 52 can analyze the target material in the sample based on the measured intensity signal from the light receiving unit 49.
- the apparatus main body 53 includes a central control unit 68, a chip position control unit 69, a chip mount control unit 70, a pumping control unit 72, a timer unit 74, a RAM 76, a ROM 78, a display panel 80, and an operation interface 82. , An analysis unit 85, a drive control unit 87, a signal processing unit 90, a lighting control unit 92, a reading unit 93, and the like.
- the reading unit 93 reads the spec information stored in the identifier 29 of the cartridge 4.
- the reading unit 93 includes an image sensor corresponding thereto.
- the image sensor forms an image signal based on the two-dimensional barcode pattern, and the reading unit 93 forms specification information based on the image signal and sends it to the central control unit 68.
- the ROM 78 stores various control programs of the automatic analyzer 52, processing information 78a read based on specification information from the reading unit 93 or a user's manual operation. For example, a plurality of processing programs 78a are prepared in advance so that separate processing programs can be read corresponding to information input by a user's manual operation or automatically read spec information. It is stored in the ROM 78 as a data table. For example, a separate processing program is assigned to each of the cartridges including one reagent storage chamber, two cartridges, three cartridges, four cartridges, and five cartridges. In order to assign different processing programs for A, B, C, D, and E, the ROM 78 can store 25 processing programs having different processing modes.
- the ROM 78 includes a data table for reading out an appropriate processing program corresponding to the specification information, a different processing program 78a can be appropriately read out from the ROM 78 according to the specification information and used. Thereby, it is possible to carry out detailed processing for each cartridge 4 having different specifications.
- the processing program 78a incorporates basic operation instructions for each part of the automatic analyzer 52, and the automatic analyzer 52 is operated based on the processing program 78a to appropriately execute the processing of the cartridge 4. it can.
- a control program is loaded from the ROM 78 into the RAM 76 in accordance with the operation mode selected by the user through the operation interface 82, and the central control unit 68 controls each part of the automatic analyzer 52 based on the control program loaded into the RAM 76. is doing.
- the display unit 30 (see FIG. 1) of the cartridge 4 displays information related to the prepacked reagent, etc., and the user operates the operation interface 82 based on this display content to provide information necessary for analyzing the test sample. Can be entered.
- the display panel 80 displays items that need to be presented to the user. For example, the number of pumping times when the sample and the reagent are mixed, the flow rate at the time of pumping, the amount of suction and discharge, the rate of movement of the pipette tip 17, the various information read from the identifier 29 of the cartridge 4 are displayed. Displayed on the panel 80, the user can confirm with this display. If it is desired to change various setting contents, they can be changed through operation of the operation interface 82.
- the time measuring unit 74 counts time according to the program read from the ROM 78. Time counting is performed, for example, when pumping or when a sample is mixed with a reagent to prepare a measurement sample, and thus the time required for each step, such as the reaction time between the sample and the reagent, is accurate. Will be counted.
- the tip mount control unit 70 attaches the pipette tip 17 or the seal crushing tool 18 to the nozzle 45 and removes the pipette tip 17 or the seal crushing tool 18 attached to the nozzle 45.
- the tip mount controller 65 grips the pipette tip 17 and the seal crushing tool 18, and when the nozzle rises in the vertical direction, the gripped pipette tip 17 and the seal crushing tool 18 are detached from the nozzle 45.
- the nozzle 45 is arranged above the chamber in which the new pipette tip 17 and the seal crushing tool 18 are accommodated by moving in the arrangement direction of each chamber. After the movement is completed, the pipette tip 17 and the seal crushing tool 18 are newly attached to the nozzle 45 as the nozzle 45 descends along the vertical direction.
- the pumping control unit 72 includes a pump 100 and a pressure sensor 102, and controls the suction and discharge of liquid performed through the nozzle 45 and the pipette tip 17 attached to the nozzle 45.
- the pump 100 includes a housing formed in a cylinder shape, a piston movably fitted in the housing, and a motor for driving the piston, and the inside of the housing communicates with an opening of a nozzle.
- the movement of the piston is controlled by, for example, a servo motor, and the drive of the servo motor is controlled by a drive control signal from the pumping control unit 72.
- a pressure sensor 102 that detects pressure may be provided in the opening of the nozzle 45, and the pressure sensor 102 sends a pressure signal to the pumping control unit 72.
- the pumping control unit 72 monitors the pressure based on the pressure signal from the pressure sensor 102. With such a configuration, for example, when the tip of the pipette tip 17 is immersed in the specimen in the well, the pressure detected by the pumping controller 72 exceeds a predetermined threshold value, and the servomotor is driven accordingly. A control signal is sent out.
- the pressure sensor 102 always sends a pressure signal to the pumping control unit 72 at the time of suction and discharge of the specimen, so that the pumping control section 72 can control the drive of the servo motor with high accuracy, so It is possible to monitor whether the suction / discharge is performed within a predetermined range by monitoring the level of pressure and exhaust pressure.
- the drive control unit 87 controls an actuator for moving the nozzle 45 along the movement guide 65, and controls the driving of the actuator in response to a command from the central control unit 68.
- the actuator for example, a stepping motor or a servo motor can be used, whereby the position of the nozzle 45 can be precisely controlled in the direction in which the movement guide 65 extends.
- the photometric mechanism 37 (see FIG. 8) includes a light source 47, and a lighting control unit 92 controls lighting / extinguishing of the light source 47.
- the light receiving sensor 105 provided in the photometric mechanism 37 receives the transmitted light from the measurement sample dispersed by the spectroscopic element and outputs a measurement intensity signal.
- a sensor formed of a semiconductor, a photomultiplier tube, or the like can be used as the light receiving sensor 105.
- the spectroscopic element can divide the transmitted light from the measurement sample into, for example, 12 wavelength regions, and the light receiving sensor 105 can separately receive the spectroscopic light in each wavelength region of the transmitted light divided into 12 regions. Twelve are provided independently. Therefore, the photometric mechanism 37 can independently measure the light intensity of each wavelength band that has been split. Each light receiving sensor 105 that has received the spectral light outputs an analog measurement intensity signal in accordance with the received spectral light.
- the size of the light receiving unit 49 can be reduced by using a CCD sensor, a CMOS sensor, or the like as a semiconductor sensor.
- the transmitted light is divided into 12 wavelength regions by the spectroscopic element.
- the number of divisions is not limited to this, and may be appropriately changed as necessary.
- the signal processing unit 90 is provided for each light receiving sensor 105 and includes an amplifier and an A / D conversion circuit.
- An analog measurement intensity signal from the light receiving sensor 105 is sent to the signal processing unit 90 and amplified by an amplifier.
- the amplified measurement intensity signal is digitized by an A / D conversion circuit to form measurement intensity data relating to each spectroscopic light.
- the formed measurement intensity data is sent to the analysis unit 85.
- the analysis unit 85 analyzes the measurement sample by calculating absorbance and turbidity based on the measurement intensity data formed by the signal processing unit 90. Examples of the analysis of the measurement sample include quantification for calculating the amount of the target substance contained in the measurement sample.
- the analyzing unit 85 calculates the intensity of the spectral light in each wavelength band based on the measured intensity data, and compares the calculated intensity of the spectral light with, for example, a calibration curve to determine the amount of the target substance. Precise calculation is possible.
- the analysis unit 85 can also perform a biochemical test for testing a biological material contained in a specimen, but the analysis target is not limited to this, and any liquid that has optical transparency such as sewage may be used.
- the identification information recorded in the identifier 29 attached to the first cartridge 4 is first read.
- the identifier 29 stores information on a series of operation procedures of the automatic analyzer from the mixing of the test sample and the reagent to the analysis and the output of the result.
- the central control unit 68 stores information on the identifier 29.
- the processing program 78a for the cartridge 4 is read from the ROM 78 based on the above, and the read processing program 78a is developed in the RAM 76 to start the first analysis.
- the reagent used in the analysis is selected from the reagents contained in the cartridge 4 according to the analysis content selected by the user. After selecting the reagent, the multi-unit 64 is driven along the movement guide 65 in order to mount the seal crushing tool 18 on the nozzle 45.
- the display unit 30 of the cartridge 4 displays information about the reagent for designating the chamber having the highest measurement effect used for the measurement of transmitted light, and the user displays the reagent displayed on the display unit 30.
- a chamber for measuring transmitted light may be designated manually based on the information.
- the nozzle 45 equipped with the seal crushing tool 18 is moved toward the reagent storage chamber for storing the selected reagent, and the hermetic seal 4b is crushed by the seal crushing tool 18.
- the seal crushing tool 18 is detached from the nozzle 45, and a pipette tip 17 is attached instead.
- the control unit 60 moves the multi unit 64 along the movement guide 65 so that the nozzle 45 is positioned on the sample storage chamber that stores the sample. After the multi unit 64 is positioned, the nozzle 45 stores the sample. The sample is lowered toward the chamber and aspirated.
- a reagent storage chamber storing a reagent to be used this time is selected from among a plurality of reagent storage chambers storing reagents, and the multi-unit 64 moves toward the selected reagent storage chamber.
- the nozzle 45 is lowered and the sample sucked by the nozzle 45 is discharged into the reagent storage chamber and mixed.
- Mixing of the reagent and the sample can be performed by pumping.
- the measurement sample in which the sample and the reagent are mixed is prepared in the reagent storage chamber.
- the light source 47 is turned on and light is projected onto the measurement sample stored in the reagent storage chamber.
- the light transmitted through the measurement sample is split by the spectroscopic element, and the spectroscopic light is measured by the photometric mechanism 37.
- the signal processing unit 90 forms measurement intensity data based on the measurement intensity signal sent from the light receiving sensor 105 of the photometry mechanism 37, and the analysis unit 85 determines the absorbance and turbidity of the target substance in the measurement sample based on the measurement intensity data. analyse.
- the multi unit 64 moves to the second cartridge 4 side loaded next to the first cartridge 4, for example. A second analysis is started.
- the identifier 29 of the second cartridge 4 is read and the processing program 78a is read from the ROM 78.
- the reagent used in the second analysis is selected from the reagents stored in the cartridge 4 according to the analysis contents. After the hermetic seal 4 b is crushed by the nozzle 45 to which the seal crushing tool 18 is attached, the pipette tip 17 is attached to the nozzle 45 instead of the seal crushing tool 18.
- the multi-unit 64 starts moving toward the sample storage chamber 26 of the first cartridge 4, and the multi-unit 64 is arranged so that the nozzle 45 is positioned on the sample storage chamber 26.
- the multi-unit 64 moves toward the reagent storage chamber used this time, and a measurement sample in which the sample and the reagent are mixed is prepared in the reagent storage chamber. .
- the light source 47 is controlled to be turned on, and light for measuring absorbance is projected onto the measurement sample stored in the reagent storage chamber.
- the light transmitted through the measurement sample is split and photometrically measured by the photometric mechanism 37, and the target substance in the measurement sample is analyzed based on the photometric result.
- the preparation mechanism 36 in which the automatic analyzer 52 has the nozzle 45 and the photometric mechanism 37 having the light source 47, the filter 48, and the light receiving unit 49 are integrated. Since the multi-unit 64 is provided, the multi-unit 64 can move from the preparation of each measurement sample to photometry while moving in the arrangement direction of the chambers containing the measurement samples.
- the automatic analyzer 52 having a smaller installation space than can be processed can be provided.
- the optical path length used for photometry is selected by selecting the chamber to be used from the first to third reagent storage chambers 31 to 33 having the optical path lengths d1 to d3, respectively. be able to. Thereby, a measurement sample can be analyzed using an appropriate optical path length.
- the analysis range such as the concentration is expanded, the analysis of the sample having a high concentration, Sample usage can be reduced, and more accurate analysis can be performed.
- a calibration curve can be created and a photometric device can be calibrated.
- the user in preparing a calibration curve, first, the user prepares a standard sample whose concentration is already known.
- the prepared standard sample is stored in the sample storage chamber 26 of the cartridge 4, and the cartridge 4 is set in the automatic analyzer 52.
- the automatic analyzer 52 starts preparing a measurement sample. For example, the same amount of buffer is previously stored in the first to third reagent storage chambers 31 to 33, and the same amount of sample is mixed in each of the first to third reagent storage chambers 31 to 33, and the first to third reagent storage chambers 31 to 33 are mixed. A standard solution is prepared in the third reagent storage chambers 31-33.
- the light transmitted through the standard solution contained in each of the chambers 31 to 33 and emitted from the emission units 31c to 33c is measured, and the absorbance is calculated.
- a program for creating a calibration curve is stored in advance in the ROM 78, and the central control unit 68 measures the light of each of the prepared standard solutions with a plurality of optical path lengths. After calculating the absorbance, the central control unit 68 converts each absorbance into absorbance when a plurality of standard solutions having different concentrations are measured using cuvettes having the same optical path length. A calibration curve can be created from the converted absorbance and the concentration of the standard solution.
- the photometric device mounted in the automatic analyzer can be calibrated by previously storing the blank solution in each reagent storage chamber.
- the photometric device may be calibrated before performing photometry of the measurement sample in order to perform quantitative determination with higher accuracy.
- the cartridge of the present invention has a plurality of chambers with different optical path lengths, and the absorbance of the blank solution is measured using a plurality of chambers with different optical path lengths by prepacking each chamber with a blank solution. Then, based on this measured value, it is possible to calibrate the photometric device such as correction of the photometric value.
- a cartridge in which a plurality of chambers having different optical path lengths are linearly illustrated has been illustrated.
- a plurality of chambers having different optical path lengths may be arranged in an arc or a circle.
- the cartridge in which the chambers are arranged can also calibrate the photometric mechanism more accurately and create a more accurate calibration curve.
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Abstract
Description
(1)本発明は、被検試料と試薬とを混合して反応させ、その反応状態を透過光により測定する試薬収容・測定カートリッジであって、
光路長の異なる複数の透過光測定用チャンバを備えたことを特徴とする試薬収容・測定カートリッジである。
(2)さらに、本発明は、前記カートリッジが装填される自動分析装置であって、ピペットチップを先端に装着し、該ピペットチップ内に前記被検試料を吸引及び吐出して試薬チャンバに分注するノズルと、
前記被検試料と試薬との混合物に光を投射するための光源と、
前記光源からの光を、前記混合物を通して受光する検出器と、
を有し、前記分注ノズル、光源及び検出器が一体として移動可能な同一ユニットに装着されていることを特徴とする前記自動分析装置である。
(3)さらに、本発明は、 被検試料と試薬とを処理するためのツールを収容したチャンバ、及び/又は前記被検試料と試薬との処理に供するためのチャンバ若しくはウェル、並びに前記処理の手順に関する情報が記録された識別子を備えたカートリッジであって、少なくとも前記識別子がシールで被覆された前記カートリッジを提供する。この場合、前記チャンバ、ウェル及び識別子がシールで被覆されたものであることが好ましい。
(4)さらに、本発明は、前記(1)又は(2)に記載のカートリッジ(識別子が被覆されていないカートリッジ)において少なくとも前記識別子をシールで被覆することを特徴とするカートリッジのシーリング方法である。
(5)さらに、本発明は、前記(1)に記載のカートリッジを、前記(2)に記載の自動分析装置に供してカートリッジに含まれる被検試料を測定することを特徴とする被検試料の自動分析方法である。また、本発明は、前記(3)に記載のカートリッジを、被検試料測定用自動分析装置に供して当該カートリッジに含まれる被検試料を測定することを特徴とする被検試料の自動分析方法である。
図5は、チャンバの配列方向に沿ったカートリッジの縦断面図である。同図に示すように、カートリッジ本体4aに形成された第1~第3試薬収容チャンバ31~33には、試料収容チャンバ26に収容された試料と混合されて測定サンプルを調製するための試薬が収容される。各試薬収容チャンバ31~33の開口31a~33aの周囲及び開口31a~33a間には高さがほぼ同一である隆起部28が形成されており、この隆起部28の表面に密閉シール4bが貼り付けられることで第1~第3試薬収容チャンバ31~33が密閉される。密閉シール4bは、すべての開口31a~33aを図1に示すように1枚で覆うものであってもよいし、それぞれの開口31a~33aを個別に覆うものでもよい。これと同様に、被覆シール4cを貼付して、試料収容チャンバ26、チップ収容チャンバ22及びツール収容チャンバ24を覆うことができる。被覆シール4cは、自動分析装置に装填する際にユーザによって手動で剥離して取り除くことができる。
環状オレフィンモノマーの開環重合体は、環状オレフィンモノマーを、公知の開環重合触媒の存在下でメタセシス反応により重合して得られるものである。また、環状オレフィンモノマーの開環重合体の水素添加物は、開環重合体を公知の水素化触媒により水素化することにより得られるものである。
4a カートリッジ本体
31 第1試薬収容チャンバ(透過光測定用チャンバ)
31b 入射部
31c 出射部
32 第2試薬収容チャンバ(透過光測定用チャンバ)
32b 入射部
32c 出射部
33 第3試薬収容チャンバ(透過光測定用チャンバ)
33b 入射部
33c 出射部
36 調製機構
37 測光機構
45 ノズル
47 光源
48 フィルタ
49 受光部
52 自動分析装置
53 装置本体
58 カートリッジトレイ
64 マルチユニット
68 中央制御部
78 ROM
85 分析部
93 読み取り部
Claims (23)
- 被検試料と試薬とを混合して反応させ、その反応状態を透過光により測定する試薬収容・測定カートリッジであって、
光路長の異なる複数の透過光測定用チャンバを備えたことを特徴とする試薬収容・測定カートリッジ。 - 被検試料を収容する試料収容チャンバ、ピペットチップを収容するチップ収容チャンバ、及びシール破砕ツールを収容したツール収容チャンバをさらに備えた請求項1に記載のカートリッジ。
- 被検試料と試薬との混合から測定結果の出力に至るまでの動作手順に関する情報が記録された識別子をさらに備えた請求項1又は2に記載のカートリッジ。
- 複数の前記透過光測定用チャンバから、最も測定効果の高いチャンバを指定する試薬情報の表示手段を備えた請求項1から3のいずれかに記載のカートリッジ。
- 複数の前記透過光測定用チャンバのうちの少なくとも1つが、前記試薬又は被検試料の容器として兼用される請求項1から4のいずれかに記載のカートリッジ。
- 前記透過光測定用チャンバが340~800nmの範囲において70%以上の透過率を有することを特徴とする請求項1から5のいずれかに記載のカートリッジ。
- 前記透過光測定用チャンバが環状ポリオレフィン製のものであることを特徴とする請求項1から6のいずれかに記載のカートリッジ。
- 複数の前記透過光測定用チャンバのうちの少なくとも1つに試薬を予め収容し密閉したことを特徴とする請求項1から7のいずれかに記載のカートリッジ。
- 前記試料収容チャンバ、チップ収容チャンバ及びツール収容チャンバ並びに前記識別子のうち少なくとも識別子がシールにより被覆されたことを特徴とする請求項3から8のいずれかに記載のカートリッジ。
- 前記試料収容チャンバ、チップ収容チャンバ及びツール収容チャンバ並びに前記識別子がシールにより被覆されたことを特徴とする請求項9に記載のカートリッジ。
- 請求項1から10のいずれかに記載のカートリッジが装填される自動分析装置であって、ピペットチップを先端に装着し、該ピペットチップ内に前記被検試料を吸引及び吐出して試薬チャンバに分注するノズルと、
前記被検試料と試薬との混合物に光を投射するための光源と、
前記光源からの光を、前記混合物を通して受光する検出器と、
を有し、前記分注ノズル、光源及び検出器が一体として移動可能な同一ユニットに装着されていることを特徴とする前記自動分析装置。 - 前記光源からの光の波長-強度分布を調整するフィルタを前記同一ユニットにさらに備えた、請求項11に記載の自動分析装置。
- 光源と検出器とを結ぶ光軸上に、分注ノズルによる吸引及び吐出部分を位置させることを特徴とする請求項11又は12に記載の自動分析装置。
- 前記検出器が受光した光を分光し、かつ分光された各波長帯の光強度を独立して計測する機構を有することを特徴とする請求項11から13のいずれかに記載の自動分析装置。
- 前記混合物に投射する光の波長が340nm~800nmであることを特徴とする請求項11から14のいずれかに記載の自動分析装置。
- 請求項3から10のいずれかに記載のカートリッジから前記動作手順を読み取る機構を備えたことを特徴とする請求項11から16のいずれかに記載の自動分析装置。
- 被検試料と試薬とを処理するためのツールを収容したチャンバ、及び/又は前記被検試料と試薬との処理に供するためのチャンバ若しくはウェル、並びに前記処理の手順に関する情報が記録された識別子を備えたカートリッジであって、少なくとも前記識別子がシールで被覆された前記カートリッジ。
- 前記チャンバ、ウェル及び識別子がシールで被覆された請求項17に記載のカートリッジ。
- 請求項3から8のいずれかに記載のカートリッジにおいて少なくとも識別子をシールで被覆することを特徴とする前記カートリッジのシーリング方法。
- 被検試料と試薬とを処理するためのツールを収容したチャンバ、及び/又は前記被検試料と試薬との処理に供するためのチャンバ若しくはウェル、並びに前記処理の手順に関する情報が記録された識別子を備えたカートリッジにおいて少なくとも当該識別子をシールで被覆することを特徴とする前記カートリッジのシーリング方法。
- 前記チャンバ、ウェル及び識別子をシールで被覆することを特徴とする請求項20に記載の方法。
- 請求項1から10のいずれかに記載のカートリッジを、請求項11から16のいずれかに記載の自動分析装置に供してカートリッジに含まれる被検試料を測定することを特徴とする被検試料の自動分析方法。
- 請求項17又は18に記載のカートリッジを、被検試料測定用自動分析装置に供して当該カートリッジに含まれる被検試料を測定することを特徴とする被検試料の自動分析方法。
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JPWO2012036296A1 (ja) | 2014-02-03 |
EP2618161A1 (en) | 2013-07-24 |
US20130183769A1 (en) | 2013-07-18 |
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