US20130039809A1 - Automatic analyzer - Google Patents
Automatic analyzer Download PDFInfo
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- US20130039809A1 US20130039809A1 US13/653,917 US201213653917A US2013039809A1 US 20130039809 A1 US20130039809 A1 US 20130039809A1 US 201213653917 A US201213653917 A US 201213653917A US 2013039809 A1 US2013039809 A1 US 2013039809A1
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- sample
- precision control
- control sample
- analysis
- rack
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- 239000013068 control sample Substances 0.000 claims abstract description 78
- 238000004458 analytical method Methods 0.000 claims abstract description 71
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 30
- 230000004044 response Effects 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 95
- 238000012546 transfer Methods 0.000 claims description 21
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 6
- 239000012472 biological sample Substances 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000012723 sample buffer Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013610 patient sample Substances 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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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
- G01N35/00594—Quality control, including calibration or testing of components of the analyser
- G01N35/00712—Automatic status testing, e.g. at start-up or periodic
-
- 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
- G01N35/00594—Quality control, including calibration or testing of components of the analyser
- G01N35/00613—Quality control
- G01N35/00623—Quality control of instruments
-
- 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
- G01N35/00594—Quality control, including calibration or testing of components of the analyser
- G01N35/00693—Calibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N2001/2893—Preparing calibration standards
-
- 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
- Y10T436/10—Composition for standardization, calibration, simulation, stabilization, preparation or preservation; processes of use in preparation for chemical testing
Definitions
- the present invention relates to an automatic analysis system which performs qualitative and quantitative analyses of a biological sample, such as blood, urine, etc. More particularly, the present invention relates to an automatic analysis system which is provided with a transfer system for transferring sample vessels to analysis system.
- the transfer line having a form of a belt conveyor transfers the sample rack inputted through the sample rack input slot, a bar code reader provided in the middle of the transfer line recognizes the rack type and sample, and then analysis is performed.
- a system disclosed for example in JP-A-10-325839 is known.
- a sample vessel storing a sample under measurement is arranged on a disk-shaped sample disk. Therefore, it is possible for the operator of the analyzer to perform calibration and precision control simply by inputting measurement commands in the analyzer.
- the operator needs to prepare a calibrator and a precision control sample even during analysis of a general sample. This may prevent analysis of general samples which is a primary object of the analyzer.
- An object of the present invention is to provide an automatic analyzer that can accomplish precision control even if the operator does not perform an operation of inputting a precision control sample.
- An automatic analyzer comprising: an analysis unit for analyzing a biological sample; a transferring mechanism for transferring a sample rack to the analysis mechanism and a sample rack (with sample dispensing completed) from the analysis mechanism; a sample supply unit which supplies a sample to the sample buffer; and a sample storage unit which stores a sample from the sample buffer.
- a typical transferring mechanism is structured such that a space arranging racks moves by itself, such as a belt conveyer, or a sample rack gripped by an arm or claw is slid on a base without move of the base, any transferring mechanism is possible as long as it is provided with a physically movable sample rack.
- the automatic analyzer When a precision control sample is kept internally held, the automatic analyzer according to the present invention is capable of automatically performing analysis of a precision control sample in response to an external factor, such as, for example, when a calibrator is inputted in the analyzer, the number of remaining reagents satisfies a predetermined condition (becomes zero or falls below a specified value), the number of analyzed samples exceeds a specified value, a specified time period has elapsed, etc. Accordingly, it is possible to easily accomplish precision control at appropriate timing, thereby alleviating the burden on the operator.
- an external factor such as, for example, when a calibrator is inputted in the analyzer, the number of remaining reagents satisfies a predetermined condition (becomes zero or falls below a specified value), the number of analyzed samples exceeds a specified value, a specified time period has elapsed, etc.
- FIG. 1 is a diagram showing an embodiment of an automatic analyzer according to the present invention.
- FIG. 2 is a diagram showing an area which holds a precision control sample of the automatic analyzer according to the present invention.
- FIG. 3 is a diagram showing a screen for registering various setups for an internally held precision control sample in the automatic analyzer according to the present invention.
- FIG. 4 is a diagram showing a processing flow when a precision control sample to be held internally in the automatic analyzer according to the present invention.
- FIG. 5 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when a calibrator in the automatic analyzer according to the present invention.
- FIG. 6 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when the number of remaining reagents satisfies a predetermined condition when reagents are used in the automatic analyzer according to the present invention.
- FIG. 7 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when each condition is satisfied in the automatic analyzer according to the present invention.
- FIG. 8 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when measurement failure is detected in the automatic analyzer according to the present invention.
- FIG. 9 is a diagram showing a processing flow when an expiration date of an internally held precision control sample has expired in the automatic analyzer according to the present invention.
- FIG. 1 is a diagram showing a general configuration of an automatic analyzer according to an embodiment of the present invention.
- the automatic analysis system comprises: a sample rack input part 10 ; a sample rack storage part 11 ; an ID reader 12 ; a transfer line 13 , a sample rack buffer unit 21 ; analysis modules 31 and 32 ; and management computers 1 and 2 .
- the sample rack input part 10 is used to input sample racks which holds samples.
- the analysis modules 31 and 32 are arranged along the transfer line 13 and removably connected to the transfer line 13 . There may be any number of analysis modules.
- the present embodiment includes two analysis modules.
- the transfer line 13 transfers a sample rack from the sample rack input part 10 to the analysis modules 31 and 32 according to an analysis request, transfers a sample rack holding a sample that has been analyzed by the analysis modules 31 and 32 to the sample rack buffer unit 21 , or transfers a sample rack not requested for analysis to the sample rack storage part 11 .
- the sample rack buffer unit 21 provided in the transfer line 13 with which a rack storing a calibrator, a precision control sample, and a general sample are transferred, is a line mechanism that is capable of holding one or more sample racks.
- the sample rack buffer unit 21 makes it possible to hold a rack holding any sample transferred from the transfer line 13 for a desired time period and then resupply the sample rack to the analysis modules or the sample rack storage part 11 at desired timing.
- the sample rack input part 10 includes the management computers which perform necessary control of the sample rack input part 10 , the sample rack storage part 11 , the ID reader 12 , the transfer line 13 , and the sample rack buffer unit 21 . Further, a memory unit of the management computer 1 for storing input/output information and a display unit 2 for inputting information and displaying analysis results are connected to the management computers 1 and 2 .
- a sample held by the sample rack has a sample ID which indicates sample-related attribute information (receipt number, patient name, request analysis item, etc.) and further the sample rack has a rack ID which indicates rack identification information, such as the rack number.
- the sample rack placed in the sample rack input part 10 is transferred by the transfer line 13 .
- the sample ID and the sample rack ID are read by the ID reader 12 and then transferred to the total management computers 1 and 2 .
- the total management computers 1 and 2 determine an analysis module that will analyze a requested analysis item based on the attribute information.
- a sample mentioned here is typically serum which is liquid under inspection, it is also possible to perform analysis with whole blood or diluted liquid sample.
- a sample rack means a rack in which one or more sample vessels for storing samples can be arranged.
- a sample vessel can be a test tube, a blood collecting vessel, or any other vessels that can store a sample.
- the sample type is determined from the sample ID and the sample rack ID read by the ID reader 12 .
- a recognized sample rack arranges a precision control sample
- holding is set with setup of holding of precision control samples 111 a
- number of internally held precision control samples 112 a is 1 or above
- a precision control sample hold area 21 a is empty, the sample is held in the analyzer for each rack.
- sample is not a precision control sample or if the setup is disabled, the sample is subjected to normal analysis and then collected in the sample rack storage part 11 as usual.
- the sample type is determined by the sample ID and the sample rack ID read by the ID reader 12 , if the sample type is recognized as a calibrator and if an effective precision control sample is held in the analyzer, an analysis request for a predetermined item (for example, the same item) is created for an item to be analyzed with a calibrator in relation to the precision control sample.
- a predetermined item for example, the same item
- the sample is not a calibrator or if no effective precision control sample is held, only the calibrator is subjected to normal measurement processing.
- the above-mentioned analysis makes it possible to perform measurement of a precision control sample based on a calibrator. Therefore, it becomes possible for the operator to omit the creation of an analysis request for a precision control sample and the preparation of a sample.
- the sample With a rack holding a sample, which is assigned an analysis item and transferred to the analysis modules 31 and 32 , the sample will be dispensed in order to analyze the item.
- the concentration may have changed and accordingly measurement results may indicate an abnormal value.
- another precision control sample is held in the analyzer, which allows analysis of a requested item with which an abnormal value is detected with the precision control sample, when setup of measurement with different sample at failure detection 111 j is enabled, the requested item is created for another internally held precision control sample, the precision control sample is transferred, and analysis is performed.
- a precision control sample is provided with an expiration date.
- some components of the sample may vary making it impossible to acquire an expected concentration value. This is why it is necessary to provide and control an expiration date for the sample.
- the expiration date depends on components, i.e., samples.
Abstract
An automatic analyzer for performing analysis of a precision control sample in response to an external factor to alleviate the burden on the operator and perform precision control at appropriate timing, thereby allowing automatic maintenance of the measurement precision. Analysis of a precision control sample is performed by creating an analysis request for the internally held precision control sample and then transferring the precision control sample in response to an external factor occurring, when a calibrator is inputted in the analyzer, the number of remaining reagents under analysis satisfies a predetermined condition (becomes zero or falls below a specified value), the date changes, a specified time runs out, the operator is changed, the number of analyzed samples exceeds a specified value, a specified time period has elapsed, a new reagent is registered, and a measurement failure is detected.
Description
- This application is a continuation of U.S. patent application Ser. No. 13/094,129 filed on Apr. 26, 2011, which is a divisional of U.S. patent application Ser. No. 12/038,389, filed Feb. 27, 2008, now abandoned, which claims priority to Japanese Patent Application No. 2007-048387, filed Feb. 28, 2007, and which is incorporated herein by reference in its entirety.
- 1. Field of the Invention
- The present invention relates to an automatic analysis system which performs qualitative and quantitative analyses of a biological sample, such as blood, urine, etc. More particularly, the present invention relates to an automatic analysis system which is provided with a transfer system for transferring sample vessels to analysis system.
- 2. Description of the Related Art
- There is a remarkable increase in the use of automatic analyzers which automatically perform qualitative and quantitative analyses of a biological sample, such as blood, urine, etc., mainly in large hospitals and clinical inspection centers where it is necessary to process biological samples of a number of patients in a short time. Various types of automatic analyzers, i.e., large-, medium-, and small-sized automatic analyzers are under development in relation to the throughput. Particularly in the case of a certain large-sized analyzer which performs analysis of a number of samples, a sample vessel containing a biological sample is held in a holder, called sample rack, and then transferred to a plurality of analyzers through a transfer line (transfer system). When an inspection engineer inputs the sample rack into a sample rack input slot, the analyzer automatically performs processing up to output of analysis results.
- In this case, the transfer line having a form of a belt conveyor transfers the sample rack inputted through the sample rack input slot, a bar code reader provided in the middle of the transfer line recognizes the rack type and sample, and then analysis is performed. As such an automatic analysis system, a system disclosed for example in JP-A-10-325839 is known.
- With such a large-scale system, it is necessary to maintain the measurement precision (quantitative characteristics) of the system by placing a calibrator and a precision control sample having known concentration, etc. and periodically performing analysis. The calibrator and precision control sample are analyzed according to the order in which they are inputted into the sample rack input slot. Further, since not all items (TP, GOT, and other analysis items) can be covered with a single calibrator and a single precision control sample, measurement of a plurality of calibrators and precision control samples is necessary.
- With a medium- or small-sized automatic analyzer, a sample vessel storing a sample under measurement is arranged on a disk-shaped sample disk. Therefore, it is possible for the operator of the analyzer to perform calibration and precision control simply by inputting measurement commands in the analyzer.
- However, with a large-sized automatic analyzer for transferring racks by use of a transfer line, it is necessary for the operator of the analyzer to install a sample rack mounting sample vessels for storing a calibrator and a precision control sample at the rack input unit of the analyzer.
- Therefore, if the operator does not input a rack mounting a calibrator and a precision control sample, calibration and precision control cannot be performed.
- In such a case, the operator needs to prepare a calibrator and a precision control sample even during analysis of a general sample. This may prevent analysis of general samples which is a primary object of the analyzer.
- An object of the present invention is to provide an automatic analyzer that can accomplish precision control even if the operator does not perform an operation of inputting a precision control sample.
- A configuration of the present invention for accomplishing the above-mentioned object will be explained below.
- An automatic analyzer comprising: an analysis unit for analyzing a biological sample; a transferring mechanism for transferring a sample rack to the analysis mechanism and a sample rack (with sample dispensing completed) from the analysis mechanism; a sample supply unit which supplies a sample to the sample buffer; and a sample storage unit which stores a sample from the sample buffer.
- Although a typical transferring mechanism is structured such that a space arranging racks moves by itself, such as a belt conveyer, or a sample rack gripped by an arm or claw is slid on a base without move of the base, any transferring mechanism is possible as long as it is provided with a physically movable sample rack.
- There is provided a mechanism that can keep holding a precision control sample inputted to the sample buffer.
- There is provided a second sample provision unit that can keep holding a precision control sample in each analysis unit.
- When a precision control sample is kept internally held, the automatic analyzer according to the present invention is capable of automatically performing analysis of a precision control sample in response to an external factor, such as, for example, when a calibrator is inputted in the analyzer, the number of remaining reagents satisfies a predetermined condition (becomes zero or falls below a specified value), the number of analyzed samples exceeds a specified value, a specified time period has elapsed, etc. Accordingly, it is possible to easily accomplish precision control at appropriate timing, thereby alleviating the burden on the operator.
-
FIG. 1 is a diagram showing an embodiment of an automatic analyzer according to the present invention. -
FIG. 2 is a diagram showing an area which holds a precision control sample of the automatic analyzer according to the present invention. -
FIG. 3 is a diagram showing a screen for registering various setups for an internally held precision control sample in the automatic analyzer according to the present invention. -
FIG. 4 is a diagram showing a processing flow when a precision control sample to be held internally in the automatic analyzer according to the present invention. -
FIG. 5 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when a calibrator in the automatic analyzer according to the present invention. -
FIG. 6 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when the number of remaining reagents satisfies a predetermined condition when reagents are used in the automatic analyzer according to the present invention. -
FIG. 7 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when each condition is satisfied in the automatic analyzer according to the present invention. -
FIG. 8 is a diagram showing a processing flow for performing precision control by use of a precision control sample to be held internally when measurement failure is detected in the automatic analyzer according to the present invention. -
FIG. 9 is a diagram showing a processing flow when an expiration date of an internally held precision control sample has expired in the automatic analyzer according to the present invention. - A configuration and operations of an automatic analysis system according to an embodiment of the present invention will be explained below with reference to
FIGS. 1 to 9 . -
FIG. 1 is a diagram showing a general configuration of an automatic analyzer according to an embodiment of the present invention. - The automatic analysis system according to the present embodiment comprises: a sample
rack input part 10; a samplerack storage part 11; anID reader 12; atransfer line 13, a samplerack buffer unit 21;analysis modules management computers - The sample
rack input part 10 is used to input sample racks which holds samples. Theanalysis modules transfer line 13 and removably connected to thetransfer line 13. There may be any number of analysis modules. The present embodiment includes two analysis modules. - The
transfer line 13 transfers a sample rack from the samplerack input part 10 to theanalysis modules analysis modules rack buffer unit 21, or transfers a sample rack not requested for analysis to the samplerack storage part 11. - The sample
rack buffer unit 21 provided in thetransfer line 13, with which a rack storing a calibrator, a precision control sample, and a general sample are transferred, is a line mechanism that is capable of holding one or more sample racks. The samplerack buffer unit 21 makes it possible to hold a rack holding any sample transferred from thetransfer line 13 for a desired time period and then resupply the sample rack to the analysis modules or the samplerack storage part 11 at desired timing. - The sample
rack input part 10 includes the management computers which perform necessary control of the samplerack input part 10, the samplerack storage part 11, theID reader 12, thetransfer line 13, and the samplerack buffer unit 21. Further, a memory unit of themanagement computer 1 for storing input/output information and adisplay unit 2 for inputting information and displaying analysis results are connected to themanagement computers - A sample held by the sample rack has a sample ID which indicates sample-related attribute information (receipt number, patient name, request analysis item, etc.) and further the sample rack has a rack ID which indicates rack identification information, such as the rack number. The sample rack placed in the sample
rack input part 10 is transferred by thetransfer line 13. When the sample rack is moved on thetransfer line 13, the sample ID and the sample rack ID are read by theID reader 12 and then transferred to thetotal management computers total management computers - Although a sample mentioned here is typically serum which is liquid under inspection, it is also possible to perform analysis with whole blood or diluted liquid sample. Further, a sample rack means a rack in which one or more sample vessels for storing samples can be arranged. A sample vessel can be a test tube, a blood collecting vessel, or any other vessels that can store a sample.
- The following explains processing for internally holding a precision control sample in the automatic analysis system according to the present embodiment, with reference to
FIGS. 2 , 3, and 4. - When a rack from the sample
rack input part 10, the sample type is determined from the sample ID and the sample rack ID read by theID reader 12. - In this case, if a recognized sample rack arranges a precision control sample, if holding is set with setup of holding of precision control samples 111 a, if number of internally held precision control samples 112 a is 1 or above, and if a precision control
sample hold area 21 a is empty, the sample is held in the analyzer for each rack. - If the sample is not a precision control sample or if the setup is disabled, the sample is subjected to normal analysis and then collected in the sample
rack storage part 11 as usual. - The following explains analysis of an internally held precision control sample with input of a calibrator in the automatic analysis system according to the present embodiment, with reference to
FIG. 5 . - As mentioned above, when the sample type is determined by the sample ID and the sample rack ID read by the
ID reader 12, if the sample type is recognized as a calibrator and if an effective precision control sample is held in the analyzer, an analysis request for a predetermined item (for example, the same item) is created for an item to be analyzed with a calibrator in relation to the precision control sample. - After a calibrator is transferred, internally held precision control samples are transferred in succession and then measured.
- If the sample is not a calibrator or if no effective precision control sample is held, only the calibrator is subjected to normal measurement processing.
- The above-mentioned analysis makes it possible to perform measurement of a precision control sample based on a calibrator. Therefore, it becomes possible for the operator to omit the creation of an analysis request for a precision control sample and the preparation of a sample.
- The following explains analysis of an internally held precision control sample in relation to a waiting reagent in the automatic analysis system according to the present embodiment, with reference to
FIG. 6 . With the present embodiment, assuming an automatic analyzer in which a waiting reagent is automatically selected when the number of remaining reagents currently being used becomes zero, the following explains a case where measurement of a precision control sample is automatically performed when the number of remaining reagents falls below a threshold value. - With a rack holding a sample, which is assigned an analysis item and transferred to the
analysis modules - At this timing, analysis of the item is started and, when reagents from the
analysis modules total management computers - In this case, if it is determined that the updated number of remaining analyzable reagents falls below the number of remaining analyzable reagents designated in Waiting
reagent analysis condition 112 c at this time, if a reagent that can be replaced in relation to the inspection item is waiting, and if there is an internally held precision control sample, a predetermined analysis request is created in relation to an internally held precision control sample, the internally held precision control sample is transferred, and analysis is performed. - If the updated number of remaining analyzable reagents does not fall below the number of remaining analyzable reagents designated in Waiting
reagent analysis condition 112 c, if no reagent that can be replaced in relation to the inspection item is waiting, or if there is no internally held precision control sample, analysis of the precision control sample is not performed. - This makes it possible to perform measurement of the precision control sample immediately before the waiting reagent is selected, thereby making it easier to maintain the measurement precision of the inspection item.
- The following explains analysis on each condition with an internally held precision control sample in the automatic analysis system according to the present embodiment, with reference to
FIG. 7 . - If the date changes when setup of measurement at change of
date 111 d is enabled, if specified time 112e 1 or 112e 2 runs out when setup of measurement at specified time 111e 1 or 111e 2 is enabled, if the operator is changed when setup of measurement at change ofoperator 111 f is enabled, iftime interval 112 g has elapsed since the last measurement time when setup of measurement attime intervals 111 g is enabled, if the number of patient samples that has been measured since the last measurement of precision control exceeds number of samples 112 h when setup of measurement by the number ofsamples 111 h is enabled, if a new reagent is registered when setup of measurement at registration ofnew reagent 111 k is enabled, or if an analytical curve is manually changed when setup of measurement at manual change of analytical curve 111 l is enabled, a predetermined analysis request is created, an internally held precision control sample is transferred, and analysis is performed. - This makes it possible to perform measurement of a precision control sample under each condition. Therefore, it becomes possible for the operator to perform measurement of a precision control sample at appropriate timing without creating a request for a precision control sample and preparing a sample.
- The following explains analysis with different internally held precision control samples based on failure detection at the time of precision control measurement in the automatic analysis system according to the present embodiment, with reference to
FIG. 8 . - If the precision control sample itself is deteriorated at the time of measurement of a precision control sample, the concentration may have changed and accordingly measurement results may indicate an abnormal value. In this case, if another precision control sample is held in the analyzer, which allows analysis of a requested item with which an abnormal value is detected with the precision control sample, when setup of measurement with different sample at failure detection 111 j is enabled, the requested item is created for another internally held precision control sample, the precision control sample is transferred, and analysis is performed.
- This makes it possible to determine whether the measurement item with abnormal value detection is really abnormal or the precision control sample itself with abnormal value detection is deteriorated.
- The following explains expiration date control of an internally held precision control sample in the automatic analysis system according to the present embodiment, with reference to
FIG. 9 . - Generally, a precision control sample is provided with an expiration date. When the expiration date has expired, some components of the sample may vary making it impossible to acquire an expected concentration value. This is why it is necessary to provide and control an expiration date for the sample. The expiration date depends on components, i.e., samples.
- Further, since some samples are subjected to a few component variations, it is also assumed that a sample may have been consumed before component variation occurs while it is internally held. Therefore, it is also possible to make setting so as not to perform expiration date control.
- The time when a precision control sample is stored in the
management computers - Although the above has explained a case of an automatic analyzer in which a precision control sample is internally held by arranging it in a rack, similar control applies also to a case where a precision control sample is provided in the second sample provision unit of each analysis unit.
- If the operator prepares a precision control sample in advance, it becomes possible to perform analysis of the precision control sample in response to an external factor, thereby alleviating the burden on the operator. Further, it becomes possible to surely perform precision control at appropriate timing at which precision control must be performed, thereby allowing automatic maintenance of the measurement precision.
Claims (6)
1. An automatic analyzer comprising:
an analysis unit for analyzing a sample;
a rack transfer system for transferring a sample rack arranging a sample vessel which holds a sample to the analysis unit;
a rack input slot for inputting a sample rack to the rack transfer system;
a second sample provision unit holding a precision control sample in an analysis unit which is different from the one to which the sample rack is transferred; and
a control unit for controlling the automatic analyzer so as to analyze the precision control sample held in the second sample provision unit automatically in response to a factor from the outside.
2. The automatic analyzer according to claim 1 ,
wherein the control unit creates, when a calibrator is imputed in the analyzer, a predetermined measurement request according to a requested item of the calibrator in relation to a precision control sample and then analyzes an internally held precision control sample after the calibration.
3. The automatic analyzer according to claim 1 ,
further comprising a reagent holding unit which holds a plurality of the reagents for the same item, and which changes from a present reagent to another standby reagent, when the reagent which is used at present satisfies a first predetermined condition, and
wherein the control unit creates a measurement request for a precision control sample in relation to a waiting reagent and then analyzes an internally held precision control sample, when the number of remaining reagents currently being used has satisfied a second predetermined condition.
4. The automatic analyzer according to claim 1 ,
wherein the control unit creates a predetermined measurement request according to an internally held precision control sample and then analyzes the precision control sample, when change of an operator has been recognized.
5. The automatic analyzer according to claim 1 ,
wherein the control unit creates, if a measurement result of a precision control sample in relation to a requested item is abnormal, a predetermined measurement request according to the requested item with abnormal value detection to the precision control sample and then analyzes a different internally held precision control sample.
6. The automatic analyzer according to claim 1 ,
wherein the automatic analyzer provides a function for changing an analytical curve manually; and
wherein the control unit creates, when an analytical curve has been manually changed, a predetermined measurement request according to the analytical curve in relation to a precision control sample and then analyzes an internally held precision control sample.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/653,917 US20130039809A1 (en) | 2007-02-28 | 2012-10-17 | Automatic analyzer |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-048387 | 2007-02-28 | ||
JP2007048387A JP2008209338A (en) | 2007-02-28 | 2007-02-28 | Automatic analyzer |
US12/038,389 US20080219887A1 (en) | 2007-02-28 | 2008-02-27 | Automatic analyzer |
US13/094,129 US8313695B2 (en) | 2007-02-28 | 2011-04-26 | Automatic analyzer |
US13/653,917 US20130039809A1 (en) | 2007-02-28 | 2012-10-17 | Automatic analyzer |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/094,129 Continuation US8313695B2 (en) | 2007-02-28 | 2011-04-26 | Automatic analyzer |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130039809A1 true US20130039809A1 (en) | 2013-02-14 |
Family
ID=39415029
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/038,389 Abandoned US20080219887A1 (en) | 2007-02-28 | 2008-02-27 | Automatic analyzer |
US13/094,129 Active US8313695B2 (en) | 2007-02-28 | 2011-04-26 | Automatic analyzer |
US13/653,917 Abandoned US20130039809A1 (en) | 2007-02-28 | 2012-10-17 | Automatic analyzer |
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US12/038,389 Abandoned US20080219887A1 (en) | 2007-02-28 | 2008-02-27 | Automatic analyzer |
US13/094,129 Active US8313695B2 (en) | 2007-02-28 | 2011-04-26 | Automatic analyzer |
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US (3) | US20080219887A1 (en) |
EP (2) | EP1965214A3 (en) |
JP (1) | JP2008209338A (en) |
CN (3) | CN102305868B (en) |
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Also Published As
Publication number | Publication date |
---|---|
CN102305868A (en) | 2012-01-04 |
EP2322937A1 (en) | 2011-05-18 |
CN101256194A (en) | 2008-09-03 |
US8313695B2 (en) | 2012-11-20 |
CN102305868B (en) | 2014-10-15 |
EP1965214A2 (en) | 2008-09-03 |
CN102121941A (en) | 2011-07-13 |
JP2008209338A (en) | 2008-09-11 |
CN102121941B (en) | 2013-08-07 |
EP1965214A3 (en) | 2010-07-07 |
US20080219887A1 (en) | 2008-09-11 |
US20110200485A1 (en) | 2011-08-18 |
CN101256194B (en) | 2011-09-07 |
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