WO2007132631A1 - 洗浄装置および自動分析装置 - Google Patents
洗浄装置および自動分析装置 Download PDFInfo
- Publication number
- WO2007132631A1 WO2007132631A1 PCT/JP2007/058512 JP2007058512W WO2007132631A1 WO 2007132631 A1 WO2007132631 A1 WO 2007132631A1 JP 2007058512 W JP2007058512 W JP 2007058512W WO 2007132631 A1 WO2007132631 A1 WO 2007132631A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- nozzle
- pressure
- liquid
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L13/00—Cleaning or rinsing apparatus
- B01L13/02—Cleaning or rinsing apparatus for receptacle or instruments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/14—Process control and prevention of errors
- B01L2200/143—Quality control, feedback systems
- B01L2200/146—Employing pressure sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
-
- 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
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
-
- 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—Rigid containers without fluid transport within
- B01L3/5082—Test tubes per se
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N2035/00465—Separating and mixing arrangements
- G01N2035/00564—Handling or washing solid phase elements, e.g. beads
-
- 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
- G01N2035/0437—Cleaning cuvettes or reaction vessels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
- G01N2035/1025—Fluid level sensing
Definitions
- the present invention relates to a cleaning device that performs BZF cleaning of a reaction solution that has caused a heterogeneous reaction, and an automatic analyzer that includes the cleaning device and analyzes a sample such as blood or body fluid.
- Patent Document 1 Japanese Utility Model Publication No. 2-13978
- the present invention has been made in view of the above, and the reaction solution B / F It is an object to provide a cleaning device and an automatic analyzer that can accurately detect abnormality of the liquid level in the reaction container of the reaction solution and perform maintenance management easily. And
- the cleaning apparatus is configured to perform at least B / F cleaning of a reaction solution in which a heterogeneous reaction has occurred.
- This is a cleaning device equipped with a plurality of nozzle pairs consisting of a suction nozzle that sucks a part and a discharge nozzle force that discharges a predetermined B / F cleaning liquid, and is provided corresponding to each nozzle pair.
- a plurality of air nozzles that discharge air from above the tips of the suction nozzle and the discharge nozzle, and a single air supply means that supplies air to the plurality of air nozzles at a time;
- a plurality of pressure sensors for detecting the air pressure in the vicinity of the base end of each air nozzle, and the air pressure detected by the plurality of pressure sensors.
- a control means for individually controlling the discharge operation of the B / F cleaning liquid of each discharge nozzle in accordance with the change in the pressure.
- the cleaning device is based on the above invention, and the control means includes the air pressure in the vicinity of the base end portion of the plurality of air nozzles and a change in the pressure. Is characterized in that the discharge operation of the B / F cleaning liquid of the discharge nozzle corresponding to the air nozzle that takes a value that deviates from the predetermined range is stopped.
- An automatic analyzer is an automatic analyzer that analyzes a sample by causing a heterogeneous reaction in the sample to be analyzed, and includes the cleaning device according to any one of the above inventions. It is characterized by that.
- each of a plurality of nozzle pairs including a suction nozzle that sucks at least a part of a reaction solution that has caused a heterogeneous reaction and a discharge nozzle that discharges a predetermined B / F cleaning solution.
- suction nozzles that form a corresponding pair of nozzles and a plurality of air nozzles that discharge air from above the tip of each discharge nozzle, and an air supply that collectively supplies air to the plurality of air nozzles Supply from the air supply means
- a plurality of pressure sensors for detecting the air pressure in the vicinity of the base end of each air nozzle, and the air pressure detected by each of the plurality of pressure sensors and the change in the pressure.
- a control unit that individually controls the discharge operation of the B / F cleaning liquid of each discharge nozzle, so that when the B / F cleaning of a reaction liquid that has caused a heterogeneous reaction is performed, It is possible to provide a cleaning device and an automatic analyzer that can accurately detect an abnormality in the position of the reaction solution contained therein and that can be easily maintained.
- FIG. 1 is a diagram showing a configuration of a main part of an automatic analyzer according to an embodiment of the present invention.
- FIG. 2 is a diagram showing a configuration of a main part of a cleaning apparatus according to an embodiment of the present invention.
- FIG. 3 is an explanatory diagram showing an outline of an operation during B / F cleaning of the cleaning device according to one embodiment of the present invention.
- FIG. 4 is a diagram showing the air pressure detected in the case shown in FIG. 3 and the time variation of its pressure derivative.
- FIG. 5 is an explanatory diagram showing a situation in which an abnormality occurs in the operation during B / F cleaning of the cleaning device according to one embodiment of the present invention.
- FIG. 6 is a diagram showing the change in air pressure detected in the case shown in FIG. 5 and its pressure derivative over time.
- FIG. 7 is a diagram showing the relationship between the distance from the tip of the air nozzle to the pressure sensor and the air pressure in the pipe detected by the pressure sensor.
- FIG. 8 is a diagram showing the time change of the air pressure and the pressure derivative detected when the tip of the air nozzle is blocked by the liquid level in the reaction vessel at the start of the air discharge. It is.
- immunoassay is performed using a heterogeneous reaction.
- a first immune reaction antigen-antibody reaction
- a reaction vessel is applied as a solid phase. That is, a predetermined antibody is adsorbed in advance near the bottom of the inner wall of the reaction vessel. It shall be.
- the reaction solution is subjected to B / F washing with a predetermined B / F washing solution and released without specifically binding to the antibody. Including) and antibodies from the solid phase.
- a second immune reaction is performed by adding an excess of labeling enzyme. Even after this second immune reaction, the reaction solution is washed with BZF, and the released labeling substance, etc. is separated and removed from the solid phase by extra power IJ. Thereafter, a coloring substrate that exhibits the activity of the enzyme as a labeling substance is added to the reaction solution to cause a coloring reaction with the labeling substance in the reaction solution, and the amount of color development is optically measured. Finally, the concentration of the antigen to be analyzed in the sample is determined by performing a comparison operation between the data obtained by this measurement and the standard sample force data (calibration curve) with a known antigen concentration.
- an antigen that specifically binds to the antibody may be adsorbed on a solid phase in advance. It is also possible to analyze a sample by applying an immunoassay using a heterogeneous reaction other than the enzyme immunoassay described above.
- immunoassays include fluorescent immunoassay (FIA) using fluorescent substances as labeling substances, radioimmunoassay (RIA) using radioisotopes as labeling substances, and chemical enzymes using chemiluminescent substrates as labeling substances.
- FIA fluorescent immunoassay
- RIA radioimmunoassay
- chemiluminescent substrates as labeling substances
- examples include immunoassay (CLIA) and spin reagent immunoassay (SIA) using spin reagent as a labeling substance.
- FIG. 1 is a diagram schematically showing a configuration of a main part of an automatic analyzer according to an embodiment of the present invention.
- the automatic analyzer 1 shown in the figure dispenses a sample such as a specimen and a reagent into a reaction container, and performs optical measurement on the liquid in the reaction container.
- a control analysis mechanism 201 that analyzes the measurement results in the measurement mechanism 101, and these two mechanisms cooperate to automatically and immunologically analyze the components of a plurality of specimens. It is a continuous device. In the following description, it is assumed that the automatic analyzer 1 performs immunological measurement using a heterogeneous reaction.
- the measurement mechanism 101 contains a plurality of racks 22 on which sample containers 21 for containing the samples are mounted and sequentially transfers the samples.
- Liquid that holds a transport reagent 102, a carrier reagent container holding part 103 that holds a carrier reagent container 31 that contains a carrier reagent to be applied to an antigen-antibody reaction with a specimen, and a liquid reagent container 41 that contains various liquid reagents A reagent container holding unit 104 and a reaction container holding unit 105 for holding a reaction container 51 for reacting a specimen and a reagent are provided.
- the carrier reagent container holding unit 103 is a wheel that holds the carrier reagent container 31, and a drive unit that is attached to the center of the bottom surface of the wheel and rotates the wheel with a vertical line passing through the center as a rotation axis.
- the liquid reagent container holding unit 104 and the reaction container holding unit 105 have a wheel and driving means for rotating the wheel.
- a constant temperature is maintained in each container holding portion.
- the liquid reagent container holding unit 104 is set to a temperature lower than room temperature in order to suppress the deterioration and denaturation of the reagent
- the reaction container holding unit 105 is set to a temperature similar to the human body temperature. .
- the measurement mechanism 101 includes a sample dispensing unit 106 that dispenses a sample accommodated in the sample container 21 on the sample transfer unit 102 into a reaction container 51 that is held by a reaction container holding unit 105, and a carrier test.
- the carrier reagent dispensing unit 107 for dispensing the carrier reagent contained in the carrier reagent container 31 on the drug container holding unit 103 into the reaction vessel 51 and the liquid reagent container 41 on the liquid reagent container holding unit 104
- the liquid reagent dispensing unit 108 for dispensing the liquid reagent into the reaction vessel 51 and the reaction vessel 51 for installing and removing the reaction vessel 51 from the reaction vessel holding unit 105
- a reaction vessel transfer unit 109 for transferring the reaction vessel.
- the sample container 21 is affixed with an information code recording medium in which identification information for identifying a sample contained in the container 21 is encoded and recorded in an information code such as a barcode or a two-dimensional code (see FIG. Not shown).
- each of the carrier reagent container 31 and the liquid reagent container 41 is shelled with an information code recording medium in which identification information for identifying the reagent contained therein is encoded and recorded in an information code (not shown).
- the measurement mechanism 101 includes an information code reading unit CR1 that reads an information code affixed to the specimen container 21, an information code reading part CR2 that reads an information code affixed to the carrier reagent container 31, and a liquid reagent container 41.
- An information code reading unit CR3 for reading the information code attached to the is provided.
- the sample dispensing unit 106, the carrier reagent dispensing unit 107, and the liquid reagent dispensing unit 108 are configured to absorb the sample.
- a thin tubular probe for drawing and discharging, an arm for moving up and down in the vertical direction and a rotating operation in the horizontal direction to move the probe, and an intake / exhaust mechanism using an intake / exhaust syringe or the like are provided.
- Each probe is cleaned by a separate cleaning unit (not shown) after a single dispensing operation.
- reaction vessel transfer unit 109 On the operation line of the reaction vessel transfer unit 109, a reaction vessel storage unit 119 for holding an unused reaction vessel 51 and a reaction vessel disposal unit 129 for discarding the used reaction vessel 51 are provided. .
- the reaction container transfer unit 109 may have any configuration as long as it can transfer the liquid without spilling even when the reaction container 51 contains the liquid.
- the automatic analyzer 1 includes a washing unit 110 that performs B / F washing of the carrier reagent, a stirring unit 111 that has a stirring bar that stirs the liquid contained in the reaction vessel 51, and a reaction solution in the reaction vessel 51. And a photometric unit 112 having a photomultiplier tube capable of detecting weak light emitted. When measuring the fluorescence generated from the reaction solution, a light source for irradiating excitation light may be provided as the photometric unit 112.
- FIG. 2 is an explanatory view schematically showing a schematic configuration of the cleaning unit 110 which is the cleaning apparatus according to this embodiment.
- the cleaning unit 110 shown in the figure includes a set of an air nozzle 2a that discharges air, a suction nozzle 2b that sucks liquid inside the reaction vessel 51, and a discharge nozzle 2c that discharges B / F cleaning liquid into the reaction vessel 51.
- a plurality of nozzle groups G are provided.
- the plurality of nodule groups G are provided above a part of the reaction vessels 51 held by the reaction vessel holding unit 105 and adjacent to each other along the circumference of the reaction vessel holding unit 105 in the same manner as the reaction vessel 51.
- the cleaning unit 110 detects the pressure of the air applied to the vicinity of the nose driving unit 3 that drives each nozzle group G and the base end of each air nozzle 2a, and the electric power corresponding to the detection result.
- a plurality of pressure sensors 4 that generate signals (analog signals) and a signal processing unit 5 that amplifies electric signals sent from the plurality of pressure sensors 4 and performs A / D conversion are provided.
- Each air nozzle 2a is connected to one syringe 6 as air supply means via a pipe 81.
- the tip of each air nozzle 2a is located above the tip of each of the suction nozzle 2b and discharge nozzle 2c that make up the same nozzle group G.
- the nozzle group G descends and the reaction vessel 51 When inserted into the inside of the reactor, it is positioned slightly below the upper end opening surface of the reaction vessel 51.
- the syringe 6 has a cylinder 6a and a piston 6b.
- the air supply means can be realized by using a gas cylinder and a supply valve for adjusting the air supply amount from the gas cylinder.
- a pipe 81 having one end connected to the syringe 6 is formed by connecting the syringe 6 and each air nozzle 2a to each other. As a result, the air collectively supplied from one syringe 6 branches via the pipe 81 and reaches each air nozzle 2a.
- Such a branching structure of the pipe 81 is realized by using a manifold 801 having at least the number of channels equal to the number of groups of the Noznore group G.
- the suction nozzle 2b is connected to the buffer tank 8 via a pipe 82, and the buffer tank 8 is connected to a pump 9 realized by a vacuum pump.
- the liquid inside the reaction vessel 51 sucked by the pump 9 is discarded from the buffer tank 8 to the outside.
- the tip of the suction nozzle 2b extends below the tip of the other two nozzles.
- the tip of the suction nozzle 2b reacts. The liquid level in container 51 is first reached.
- the discharge nozzle 2c is connected to the syringe 10 via a pipe 83.
- the syringe 10 has a cylinder 10a and a piston 10b, and a BZF cleaning liquid L is introduced into the pipe 83 and the cylinder 10a.
- Syringe 10 contains B / F cleaning liquid L via pipe 84.
- This pipe 84 has BZF cleaning liquid An injection valve 12 that controls the flow of L and a bonnet that sucks B / F cleaning liquid L from the liquid container 14.
- Step 13 is intervening sequentially.
- B / F cleaning liquid L is introduced into piping 83 and cylinder 10a.
- the nozzle driving unit 3 drives the three nozzles (air nozzle 2a, suction nozzle 2b, and discharge nozzle 2c) that constitute each nozzle group G in a lump. For this reason, the relative positional relationship of the three nozzles in each nozzle group G does not change even when driven.
- the nozzle drive unit 3 can also drive each nozzle group G individually.
- the operation of the nozzle drive unit 3, the signal processing unit 5, the piston drive units 7 and 11, the pumps 9 and 13, and the injection valve 12 will be described later. It is controlled by the control unit 206 of the control analysis mechanism 201.
- FIG. 1 is merely a schematic illustration of the components of the measurement mechanism 101. That is, the mutual positional relationship between the components of the measurement mechanism 101 is a design matter that should be determined according to conditions such as the rotation mode of the wheel of the reaction container holding unit 105.
- the control analysis mechanism 201 includes an analysis operation unit 202 that performs an operation for analyzing the measurement result in the measurement mechanism 101, an input unit 203 that receives input of information necessary for analysis of the sample and an operation instruction signal of the automatic analyzer 1, and an analysis An output unit 204 that outputs information including the results, a storage unit 205 that stores information including the analysis results, and a control unit 206 that controls the automatic analyzer 1 are provided.
- the input unit 203 is realized by a keyboard, a mouse, a microphone, or the like.
- the output unit 204 is realized by a display (CRT, liquid crystal, plasma, organic EL, etc.), a printer, a speaker, and the like.
- the storage unit 205 includes a hard disk that stores various information magnetically, and an automatic analyzer. When device 1 executes a process, it includes a memory that loads a program related to the process from a hard disk and electrically records it. The storage unit 205 further includes an auxiliary storage device that can read information recorded on a recording medium such as a flexible disk, a CD-ROM, a DVD-ROM, an M0 disk, a PC card, and an xD picture card. Good
- the control unit 206 reads out the program stored in the storage unit 205 from the memory, thereby performing analysis calculation using the measurement result in the measurement mechanism 101, various operations of the automatic analyzer 1, and the like.
- the control analysis mechanism 201 having the above configuration receives the measurement result from the photometry unit 112, the analysis calculation unit 202 emits light of the reaction liquid in the reaction vessel 51 based on the measurement result sent from the photometry unit 112.
- the amount of the reaction solution is calculated, and in addition to the calculation result, the calibration parameters obtained from the standard sample and the analysis parameters included in the analysis information are used to quantitatively determine the components of the reaction solution.
- the analysis result obtained in this manner is output from the output unit 204 and is stored and stored in the storage unit 205.
- FIG. 3 is an explanatory diagram showing an outline of the operation of the cleaning unit 110 during B / F cleaning.
- the nozzle drive unit 3 moves the nozzle group G up and down with respect to the reaction vessel 51 under the control of the control unit 206, and after the immune reaction accommodated in the reaction vessel 51. Aspirate the liquid and discharge the B / F cleaning liquid a predetermined number of times.
- the Nozure group G is lowered toward the reaction container 51 containing the liquid L1, which is the reaction liquid after the immune reaction (state 1-1).
- the air nozzle 2a sucks air from the tip of the nozzle group G by the suction operation of the piston 6b by driving the piston drive unit 7 before or during the movement of the nozzle group G.
- the air nozzle 2a that has sucked in air stops after the descent of the nozzle group G to the reaction vessel 51 is completed and stops, and then the piston driving unit 7 drives the piston 6b to start discharging air.
- the liquid LI in the reaction vessel 51 is sucked by the suction nozzle 2b (state 1-2). After performing this suction for a predetermined time, a predetermined amount of B / F cleaning liquid L is discharged from the discharge nozzle 2c.
- liquid level of liquid L2 which is a mixture of liquid L1 and B / F cleaning liquid L, is discharged when
- the nozzle group G is raised by the nozzle drive unit 3 (state 1_4), and the series of operations ends. Thereafter, a series of operations of the states 1_1 to 1_4 are repeated a predetermined number of times.
- FIG. 4 is an explanatory view showing the time change of the pressure of the air inside the pipe 81 and the differential value (pressure differential) of the pressure in the vicinity of the base end portion of the air nozzle 2a.
- the pressure waveform W1 and pressure differential waveform W2 shown in the figure are the positive pressure of the air nozzle 2a.
- the tip force of the air nozzle 2a is the pressure of the air applied to the inside of the upper pipe 81 for a predetermined distance h (> 0). This is equivalent to that detected by the sensor 4 and output from the output unit 204 as a result of calculating the detected air pressure by the analysis calculation unit 202.
- the pressure waveform W1 indicates that the discharge nozzle 2c is B / F cleaning liquid L
- the pressure differential waveform W2 asymptotically returns to the value before rising after rising sharply immediately after time t.
- control unit 206 determines that the operation of the cleaning unit 110 is normal.
- FIG. 5 is an explanatory diagram showing an example of liquid level abnormality caused by the malfunction of the suction operation of the suction nozzle 2b when the cleaning unit 110 performs BZF cleaning in the same procedure as described above.
- the nozzle group G is lowered in the state 2-1, when the liquid L1 is sucked I with the suction nozzle 2b, some trouble occurs and the liquid L1 is not sufficiently sucked.
- State 2-2 As a result, when the discharge nozzle 2c discharges the BZF cleaning liquid L, the liquid
- the liquid volume of body L2 is higher than normal (the shaded area in the figure), and the liquid level of liquid L2 reaches the tip of Air Nozzle 2a in the process of discharging the same amount of BZF cleaning liquid L as normal Ma The tip of the air nozzle 2a is blocked by the liquid L2 (state 2-3).
- FIG. 6 is an explanatory diagram showing an outline of the time change of the air pressure and pressure differential detected by the pressure sensor 4 when an abnormality occurs in the suction operation of the suction nozzle 2b as described above (Fig. 6). And the downward direction is positive).
- the pressure waveform W3 is large at times t and t.
- the pressure differential waveform W4 also changes with the change of the pressure waveform W3.
- the change in each waveform at time t is that the liquid level of liquid L2 is at the tip of air nose 2a.
- control unit 206 sends out a control signal for stopping the driving of the piston drive unit 11, and the discharge nozzle Stop the discharge operation of B / F cleaning liquid L from 2c.
- FIG. 7 is a diagram showing the relationship between the distance from the tip of the air nozzle 2 a to the pressure sensor 4 and the air pressure in the pipe 81 detected by the pressure sensor 4.
- the pressure of air when the tip of the air nozzle 2a is closed takes a constant value P regardless of the value of X (that is, regardless of the position of the pressure sensor 4).
- the amount of change ⁇ P detected by the pressure sensor 4 before and after the liquid L2 rises to the tip of the air nozzle 2a and closes the tip of the air nozzle 2a changes according to the position of the pressure sensor 4.
- FIG. 8 is an explanatory diagram showing an overview of the time change of the air pressure and its pressure derivative when an abnormality in the liquid level position is detected in a manner different from that in FIG. 6 (the downward direction is positive in the figure). To do).
- the pressure waveform W5 shown in Fig. 8 air is discharged from the air nozzle 2a at time t.
- the amount of change when the pressure at the time of starting is larger than the case shown in pressure waveform W1 or pressure waveform W3 is ⁇ ⁇ '.
- the pressure differential waveform W6 also changes with time t
- the present invention comprises a suction nozzle that sucks at least a part of a reaction liquid that has caused a heterogeneous reaction, and a discharge nozzle that discharges a predetermined B / F cleaning liquid.
- a plurality of air nozzles that are provided corresponding to each of a plurality of nozzle pairs and discharge air from above the suction nozzles and discharge nozzles of the corresponding nozzle pairs, and the plurality of air nozzles collectively.
- a plurality of pressure sensors for detecting the pressure of air supplied from the syringe and in the vicinity of the proximal end of each air nozzle, and the plurality of pressures.
- Control means for individually controlling the discharge pressure of the BZF cleaning liquid of each discharge nozzle in accordance with the pressure of air detected by each sensor and the change in the pressure. Therefore, when performing B / F cleaning of a reaction solution that has caused a heterogeneous reaction, it is possible to accurately detect abnormalities in the liquid surface position of the reaction solution contained in the reaction vessel, and maintenance management is also possible. It can be done easily.
- the present invention should not be limited only by the embodiment.
- a particulate carrier such as glass or plastic having a diameter of 5 to 1 Omm may be used.
- the automatic analyzer may be further provided with a carrier storage unit for storing the carrier and a carrier transfer unit for transferring the carrier from the carrier storage unit to the reaction vessel.
- the diameter is at most about l z m (0.2 to 0.8 z m, more preferably 0.4 to
- magnetic particles of about 0.6 zm.
- the magnetic particles are collected in one place in the reaction container by applying a magnetic field from the outside of the reaction container when performing the BZF cleaning.
- the present invention can also be applied to the case of detecting the level of a cleaning solution, a reaction solution, or the like of an automatic analyzer that performs biochemical analysis or genetic analysis using a heterogeneous reaction. it can.
- the present invention is useful for an automatic analyzer that automatically and continuously analyzes a component of a specimen by reacting the specimen with a reagent, and in particular, immunology of the component of the specimen. This is suitable for performing statistical analysis.
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07741948A EP2019321A1 (en) | 2006-05-17 | 2007-04-19 | Cleaning equipment and automatic analyzer |
| JP2008515469A JPWO2007132631A1 (ja) | 2006-05-17 | 2007-04-19 | 洗浄装置および自動分析装置 |
| US12/272,397 US20090114255A1 (en) | 2006-05-17 | 2008-11-17 | Cleaning apparatus and automatic analyzer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-137730 | 2006-05-17 | ||
| JP2006137730 | 2006-05-17 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/272,397 Continuation US20090114255A1 (en) | 2006-05-17 | 2008-11-17 | Cleaning apparatus and automatic analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007132631A1 true WO2007132631A1 (ja) | 2007-11-22 |
Family
ID=38693731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/058512 Ceased WO2007132631A1 (ja) | 2006-05-17 | 2007-04-19 | 洗浄装置および自動分析装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090114255A1 (ja) |
| EP (1) | EP2019321A1 (ja) |
| JP (1) | JPWO2007132631A1 (ja) |
| CN (1) | CN101449168A (ja) |
| WO (1) | WO2007132631A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2233931A4 (en) * | 2007-12-18 | 2011-04-06 | Beckman Coulter Inc | CLEANING APPARATUS AND AUTOMATIC ANALYSIS APPARATUS |
| CN114226381A (zh) * | 2021-12-17 | 2022-03-25 | 深圳迎凯生物科技有限公司 | 清洗方法 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315969A (ja) * | 2006-05-26 | 2007-12-06 | Olympus Corp | 自動分析装置および分注機構の分注異常判定方法 |
| EP2410342B1 (en) * | 2010-06-29 | 2020-02-19 | F.Hoffmann-La Roche Ag | Pipetting device with independently movable pipette tips |
| JP5878377B2 (ja) * | 2012-01-16 | 2016-03-08 | シスメックス株式会社 | 分析装置 |
| US9977041B2 (en) * | 2012-12-05 | 2018-05-22 | Hitachi High-Technologies Corporation | Automatic analysis device |
| JP6916677B2 (ja) * | 2017-06-27 | 2021-08-11 | アークレイ株式会社 | ノズル洗浄装置、分注装置、分析装置、ノズルの洗浄方法 |
| EP3767301A4 (en) * | 2018-03-16 | 2021-11-17 | Hitachi High-Tech Corporation | AUTOMATIC ANALYSIS DEVICE |
| EP4289510A3 (en) * | 2018-12-28 | 2024-06-12 | Beckman Coulter, Inc. | Clinical analyzer automated system diagnostics |
| EP3971582B1 (en) * | 2019-05-15 | 2024-07-03 | Hitachi High-Tech Corporation | Automatic analysis device |
| CN116148491A (zh) * | 2022-12-31 | 2023-05-23 | 武汉明德生物科技股份有限公司 | 一种样本针吸取异常检测方法、装置及电子设备 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0213978A (ja) | 1988-07-01 | 1990-01-18 | Brother Ind Ltd | 電子写真装置 |
| JPH0213978Y2 (ja) * | 1980-10-06 | 1990-04-17 | ||
| JPH0635979B2 (ja) * | 1987-02-28 | 1994-05-11 | 康信 月岡 | 血液等の検査における反応ビ−ズの洗滌液除去方法と洗滌液除去装置 |
| JPH06265558A (ja) * | 1993-03-16 | 1994-09-22 | Olympus Optical Co Ltd | 容器洗浄装置 |
| JPH09189705A (ja) * | 1996-01-12 | 1997-07-22 | Olympus Optical Co Ltd | 自動分注装置の液面検出方法及び液面検出装置 |
| JP2775618B2 (ja) * | 1993-03-18 | 1998-07-16 | 株式会社堀場製作所 | サンプル液分取・分注装置およびその装置を用いたサンプル液分取・分注方法 |
| JP2001221804A (ja) * | 2000-01-13 | 2001-08-17 | Ortho Clinical Diagnostics Inc | 臨床分析を行う分析器における不良を検出する方法 |
| JP3641461B2 (ja) * | 2002-02-25 | 2005-04-20 | アロカ株式会社 | 分注装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3800379A1 (de) * | 1988-01-08 | 1989-07-20 | Boehringer Mannheim Gmbh | Vorrichtung zum abwaschen der innenflaeche eines reaktionsgefaesses und/oder der aussenflaeche eines reagenzkugelkoerpers |
| JP2004061408A (ja) * | 2002-07-31 | 2004-02-26 | Lintec Corp | 液面検出装置 |
-
2007
- 2007-04-19 CN CNA2007800178835A patent/CN101449168A/zh active Pending
- 2007-04-19 JP JP2008515469A patent/JPWO2007132631A1/ja not_active Withdrawn
- 2007-04-19 EP EP07741948A patent/EP2019321A1/en not_active Withdrawn
- 2007-04-19 WO PCT/JP2007/058512 patent/WO2007132631A1/ja not_active Ceased
-
2008
- 2008-11-17 US US12/272,397 patent/US20090114255A1/en not_active Abandoned
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0213978Y2 (ja) * | 1980-10-06 | 1990-04-17 | ||
| JPH0635979B2 (ja) * | 1987-02-28 | 1994-05-11 | 康信 月岡 | 血液等の検査における反応ビ−ズの洗滌液除去方法と洗滌液除去装置 |
| JPH0213978A (ja) | 1988-07-01 | 1990-01-18 | Brother Ind Ltd | 電子写真装置 |
| JPH06265558A (ja) * | 1993-03-16 | 1994-09-22 | Olympus Optical Co Ltd | 容器洗浄装置 |
| JP2775618B2 (ja) * | 1993-03-18 | 1998-07-16 | 株式会社堀場製作所 | サンプル液分取・分注装置およびその装置を用いたサンプル液分取・分注方法 |
| JPH09189705A (ja) * | 1996-01-12 | 1997-07-22 | Olympus Optical Co Ltd | 自動分注装置の液面検出方法及び液面検出装置 |
| JP2001221804A (ja) * | 2000-01-13 | 2001-08-17 | Ortho Clinical Diagnostics Inc | 臨床分析を行う分析器における不良を検出する方法 |
| JP3641461B2 (ja) * | 2002-02-25 | 2005-04-20 | アロカ株式会社 | 分注装置 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2233931A4 (en) * | 2007-12-18 | 2011-04-06 | Beckman Coulter Inc | CLEANING APPARATUS AND AUTOMATIC ANALYSIS APPARATUS |
| US8968680B2 (en) | 2007-12-18 | 2015-03-03 | Beckman Coulter, Inc. | Cleaning device and automatic analyzer |
| CN114226381A (zh) * | 2021-12-17 | 2022-03-25 | 深圳迎凯生物科技有限公司 | 清洗方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090114255A1 (en) | 2009-05-07 |
| CN101449168A (zh) | 2009-06-03 |
| JPWO2007132631A1 (ja) | 2009-09-24 |
| EP2019321A1 (en) | 2009-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007132631A1 (ja) | 洗浄装置および自動分析装置 | |
| JP7450656B2 (ja) | 自動分析装置 | |
| US8894948B2 (en) | Cleaning device, method for detecting suction nozzle clogging, and automatic analyzer | |
| US8911685B2 (en) | Automated analyzer | |
| US8894949B2 (en) | Cleaning device, method for cleaning nozzle clogging, and automatic analyzer | |
| US9921235B2 (en) | Automatic analyzer and sample dispensing method for the automatic analyzer | |
| CN101473230B (zh) | 分注装置以及自动分析装置 | |
| CN102066949B (zh) | 自动分析装置 | |
| CN101377520B (zh) | 自动分析装置 | |
| CN103201634B (zh) | 自动分析装置 | |
| JP2010210596A (ja) | 自動分析装置およびプローブ洗浄方法 | |
| CN103797371A (zh) | 自动分析装置 | |
| CN102301242B (zh) | 自动分析装置及检测体处理装置 | |
| JP5575410B2 (ja) | 自動分析装置 | |
| US20090071269A1 (en) | Specimen analyzer and liquid suction assembly | |
| JP5199785B2 (ja) | 血液サンプル検出方法、血液サンプル分注方法、血液サンプル分析方法、分注装置および血液サンプル種類検出方法 | |
| WO2007132632A1 (ja) | 洗浄装置および自動分析装置 | |
| JP5374092B2 (ja) | 自動分析装置および血液サンプル分析方法 | |
| WO2009148013A1 (ja) | 検体分注装置のプローブ洗浄方法、検体分注装置及び自動分析装置 | |
| JP2007322394A (ja) | 分注装置および自動分析装置 | |
| JP5453375B2 (ja) | 自動分析装置 | |
| WO2010150502A1 (ja) | 自動分析装置 | |
| JP2009293940A (ja) | 分注方法、分注装置及び自動分析装置 | |
| JP2009058532A (ja) | 自動分析装置 | |
| JP2007322242A (ja) | 自動分析装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 200780017883.5 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07741948 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2008515469 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007741948 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |