WO2016009862A1 - 自動分析装置 - Google Patents
自動分析装置 Download PDFInfo
- Publication number
- WO2016009862A1 WO2016009862A1 PCT/JP2015/069371 JP2015069371W WO2016009862A1 WO 2016009862 A1 WO2016009862 A1 WO 2016009862A1 JP 2015069371 W JP2015069371 W JP 2015069371W WO 2016009862 A1 WO2016009862 A1 WO 2016009862A1
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- Prior art keywords
- automatic analyzer
- probe
- static
- static elimination
- dispensing
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- 238000004458 analytical method Methods 0.000 title claims abstract description 5
- 230000003068 static effect Effects 0.000 claims abstract description 144
- 239000000523 sample Substances 0.000 claims abstract description 100
- 230000008030 elimination Effects 0.000 claims abstract description 74
- 238000003379 elimination reaction Methods 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 150000002500 ions Chemical class 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 230000005611 electricity Effects 0.000 claims abstract description 37
- 238000007664 blowing Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 26
- 238000005259 measurement Methods 0.000 claims description 23
- 239000003153 chemical reaction reagent Substances 0.000 claims description 9
- 238000006386 neutralization reaction Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 239000012472 biological sample Substances 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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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
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
-
- 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
- G01N35/1004—Cleaning sample transfer devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
- G01N35/025—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations having a carousel or turntable for reaction cells or cuvettes
-
- 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
- G01N35/1002—Reagent dispensers
-
- 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
- G01N35/1011—Control of the position or alignment of the transfer device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/24—Arrangements for measuring quantities of charge
-
- 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
- G01N2035/00891—Displaying information to the operator
-
- 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
-
- 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
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
Definitions
- the present invention relates to an automatic analyzer that performs qualitative and quantitative analysis of a biological sample such as blood, urine, and the like, and is provided with an automatic measuring system that measures the amount of light in a reaction container by placing a light source and a spectroscopic detector across the reaction container.
- the present invention relates to an analyzer.
- a specimen and one or more types of reagents are dispensed into a reaction container, causing a chemical change between the specimen and the reagent.
- An analyzer that automatically analyzes a sample by measuring the absorbance of the reaction solution is known.
- an analyzer has been proposed in which an ionizer is installed in the middle of a transfer path of a container containing a liquid, and the container is discharged by blowing static electricity in and around the container (see Patent Document 1). ).
- an analyzer for removing static electricity by showering with a static electricity removing device using a static eliminator provided on the movement path of the reaction vessel for removing electricity from the reaction vessel itself (see Patent Document 2).
- JP 2008-267830 A Japanese Utility Model Publication No. 6-18968
- Patent Document 1 and Patent Document 2 describe a static eliminating device for removing static electricity.
- the static eliminator described in Patent Document 1 and Patent Document 2 needs to be provided on the movement path of the sample container or the reaction container. For this reason, since the sample is charged after passing through the removal device and before moving the sample to the dispensing position, there is a problem that the static electricity cannot be completely removed after all.
- An object of the present invention is to provide a device that performs static elimination at a dispensing position without providing a static eliminating device on the moving path.
- a dispensing mechanism having a probe for sucking a liquid and an arm for holding the probe, and a discharge source of the discharge ion and a discharge ion generated at the generation source, which are included in the discharge mechanism, are blown to the object.
- an electrostatic removal device having a static elimination ion blowing mechanism.
- static electricity charged on the movement and transportation route can be removed immediately before dispensing, and a static electricity removal function is provided without newly providing a static removal device on the movement and transportation route. can do.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- FIG. 1 is
- FIG. 1 is a schematic configuration diagram of an embodiment of an automatic analyzer according to the present invention.
- the automatic analyzer mainly includes a transport line 101, a reaction disk 104, a reagent disk 103, and a spectrometer 107.
- the sample rack 111 on which the sample container 110 is installed is transported from the transport line 101 to the rotor 102 and transported to the shield part 114 which is a dispensing position. Thereafter, a sample required for analysis is dispensed into the reaction vessel 112 on the reaction disk 104 by the dispensing mechanism 105. Further, necessary reagents are dispensed from the reagent container 113 on the reagent disk 103 to the reaction container 112, and the reaction solution is mixed by the stirring mechanism 106.
- the absorbance of the reaction solution is measured by the spectroscope 107.
- a predetermined component concentration in the sample is calculated from the measured absorbance and a calibration curve prepared in advance. These mechanisms are controlled by the control unit 115.
- the control unit 115 also calculates the component concentration.
- FIG. 2 is a detailed view of the static eliminator of the automatic analyzer according to the present invention.
- the automatic analyzer includes a dispensing mechanism 105 having a probe for sucking a liquid and an arm for holding the probe, a source of the static elimination ions 202 provided in the dispensing mechanism 105, and a static elimination ion generated from the generation source.
- a static eliminator having a static elimination ion blowing mechanism for blowing air to the object.
- the blower fan 204 is employed as the static elimination ion blower mechanism.
- the static eliminator is integrated with the dispensing mechanism 105. Disposed within the arm 201 of the dispensing mechanism 105 are a discharge needle 203 that is a source of the static elimination ions 202, a blower fan 204 for effectively applying the ions to the object, and a static elimination control unit 205 that controls them.
- the static elimination control unit 205 can generate static elimination ions from the discharge needle 203 or drive the blower fan 204 by controlling the supply of electric power to the discharge needle 203 and the blower fan 204.
- the sample container 110 installed on the apparatus by the user is moved and transported to the dispensing position 206 by the transport line 101, the sample container 110 is charged with static electricity 207.
- the discharge ion 203 is radiated from the discharge needle 203 according to a command from the charge removal control unit 205, and it is applied to the sample container 110 by the blower fan 204, and the static electricity 207 is discharged. Electrically neutralize and remove.
- the dispensing mechanism 105 then performs a sample dispensing operation.
- the static electricity 207 can be removed immediately before the dispensing operation, not only the charge of the sample container generated before the sample container is installed, but also the charge of the sample container generated during the movement / transport is removed. Can do.
- the main control unit of the automatic analyzer and the charge removal control unit 205 operate in cooperation, thereby performing the dispensing operation and the charge removal operation at an optimum time.
- the static elimination ions can be blown from above the specimen container, the inside of the specimen container can be eliminated.
- the static eliminator in the present invention can perform a static elimination function at both the dispensing position 206 of the sample container 110 and the dispensing position 208 of the reaction container 112 by a single dispensing mechanism 105.
- FIG. 3 is an operation flowchart of the static eliminator of the automatic analyzer according to the present invention. The following control is performed by the control unit 115 or the charge removal control unit 205.
- the arm of the dispensing mechanism is moved to the dispensing position of the sample container (S302).
- the static elimination control unit 205 generates static elimination ions from the discharge needle of the arm over the specimen container (S303), and blows the static elimination ions generated by turning the blower fan to the specimen container to remove static electricity (S304). .
- the static elimination control unit 205 stops the operation of the discharge needle and the operation of the blower fan (S305), and then the control unit 115 lowers the dispensing mechanism toward the sample container and uses the liquid level detection function to bring the liquid level to the liquid level. After reaching, a specified amount of the sample is aspirated (S306).
- the control unit 115 controls the ascending operation and horizontal operation of the arm of the dispensing mechanism, and after moving the dispensing mechanism to the dispensing position of the reaction container (S307), the static elimination control unit 205 generates static elimination ions from the discharge needle. (S308), the static electricity generated by rotating the blower fan is blown to the reaction vessel to remove static electricity (S309).
- the static elimination control unit 205 stops the operation of the discharge needle and the operation of the blower fan (S310), and then the control unit 115 lowers the dispensing mechanism toward the reaction container and discharges the aspirated specimen by a specified amount (S311). ).
- the static eliminator can neutralize the specimen container and the reaction container.
- the liquid level detection is a mechanism for detecting whether the liquid surface is touched by detecting a change in the volume of the probe tip.
- the static elimination control unit 205 that controls the source of the static elimination ions and the static elimination ion blower mechanism performs static elimination on the container containing the liquid before the dispensing mechanism performs the lowering operation, and the dispensing mechanism performs the lowering operation.
- the static elimination control unit 205 is included in the dispensing mechanism, but at least the static electricity having the static elimination ion generating mechanism and the static elimination ion blowing mechanism for blowing the static elimination ions to the object. Since it is sufficient that the removing device is provided in the dispensing mechanism, the static elimination control unit 205 may be provided outside the dispensing mechanism.
- FIG. 4 is a detailed view of the static eliminator of the automatic analyzer according to the present invention.
- an air tube 403 that blows compressed air generated from the compressed air generating unit 402 is employed as the static elimination ion blowing mechanism.
- the static eliminator is integrated with the dispensing mechanism 105.
- a discharge needle 203 which is a source of the static elimination ions 202
- an air nozzle 401 capable of discharging compressed air are provided in order to effectively apply the static elimination ions 202 to the object.
- the automatic analyzer is provided with a compressed air generation unit 402, and the air nozzle 401 is connected to the compressed air generation unit 402 through an air pipe 403 disposed in a column of the dispensing mechanism 105.
- the compressed air generation unit 402 includes an air pump 404, a compressed air tank 405, and a solenoid valve 406.
- the air pump 404 takes in outside air and sends the compressed air to the compressed air tank 405, and keeps the air pressure of the compressed air tank 405 constant at all times.
- the discharge ion 203 is radiated from the discharge needle 203 according to a command from the discharge control unit 205, and at the same time, the electromagnetic valve 406 is opened.
- the static elimination ions 202 are applied to the specimen container 110, and the static electricity 207 is removed.
- the static elimination ions 202 are discharged by the blower fan 204.
- the arm 201 of the dispensing mechanism 105 does not include heavy parts such as a fan motor. Can do.
- the dispensing accuracy is reduced due to vibration to the dispensing operation.
- the dispensing operation had to wait for the transition to the dispensing operation until the fan rotating due to inertia completely stopped after the fan operation stopped. Therefore, the dispensing operation can be performed immediately after the static electricity removing operation. For these reasons, the present embodiment can contribute to the high-speed operation of the dispensing mechanism.
- FIG. 5 is an operation flowchart of the static eliminator of the automatic analyzer according to the present invention.
- the procedure for charge removal is basically the same as in the first embodiment.
- Example 1 Except for the effect due to the change of the blower fan to the compressed air generating part, the other effects are the same as in Example 1.
- FIG. 6 is a detailed view of the static eliminator of the automatic analyzer according to the present invention.
- a source for generating static electricity ions is connected to the probe, and the static electricity ions can be generated in the probe.
- the outer tube 605 that blows the compressed air generated from the compressed air generation unit blows the static elimination ions to the object.
- the static eliminator is integrated with the dispensing mechanism 105.
- a dispensing probe 602 with a charge eliminating function is provided in the arm 601 of the dispensing mechanism 105.
- the dispensing probe 602 with the charge eliminating function removes electricity in addition to the function of sucking and discharging the liquid necessary for the dispensing function and the capacitance type liquid level detection sensor necessary for detecting the liquid level. Equipped with functions. That is, the probe is connected to a source for generating static electricity and can generate static electricity to the probe.
- the dispensing probe 602 with a charge eliminating function includes a metal inner cylinder 603 and an outer cylinder 605 provided with a gap 604 through which compressed air can pass so as to surround it.
- the inner cylinder 603 is connected to a flow path such as a syringe, and sucks and discharges liquid from the inner cylinder tip 606.
- the inner cylinder 603 is electrically connected to the liquid level detection control unit 607, and functions as a liquid level detection sensor having a detection point at the inner cylinder tip 606 using a capacitance detection method. Further, the inner cylinder 603 is connected to a high voltage generator 608 in the static elimination control unit 205 to generate static elimination ions 202 at the inner cylinder tip 606.
- the outer cylinder 605 is connected to the grounding electrode 609 in order to stabilize the liquid level detection function, and is connected to the compressed air generating unit 402 through the air pipe 403 disposed in the support column of the dispensing mechanism 105. Compressed air is released from the tip 610.
- the control unit such as the static elimination control unit 205 connects the electrical connection of the inner tube 603 of the dispensing probe to a circuit (liquid level detection circuit) of the liquid level detection control unit or connects to the static elimination control unit.
- a circuit liquid level detection circuit
- the static elimination ions 202 are generated at the inner cylinder tip 606 according to a command from the static elimination control unit 205, and at the same time, the electromagnetic valve 406 is opened. Then, by discharging compressed air from the outer tube tip 610, the static elimination ions 202 are applied to the specimen container 110, and the static electricity 207 is removed.
- Example 1 and Example 2 it was necessary to provide the discharge needle 203 for generating the static elimination ions 202 on the arm 201 of the dispensing mechanism 105, but in this example, the function of the discharge needle 203 is By integrating the conventional dispensing probe 602 by improving it, it becomes unnecessary to separately install a static eliminating device, which can contribute to a reduction in mounting space for the static eliminating device.
- a static electricity removal function to the dispensing probe 602 itself that is directly affected by static electricity, the affected part and the part from which the cause of the influence is removed are located as close as possible, and the static electricity is effectively removed. Can contribute.
- FIG. 7 is an operation flowchart of the static eliminator of the automatic analyzer according to the present invention.
- the charge removal procedure is basically the same as in the second embodiment.
- the dispensing probe is used as a source for generating static electricity, so that the electrical connection of the inner cylinder of the dispensing probe is connected to the static elimination unit, connected to the liquid level detection circuit, and the connection target is switched. Points (S703, S706, S708). The rest is the same.
- FIG. 8 is a detailed view of the functions attached to the static eliminator of the automatic analyzer according to the present invention.
- a charge amount measuring unit for measuring the amount of charge charged in the sample container in a non-contact manner using a probe is provided.
- a means for measuring how much electric charge, which causes discharge of static electricity, is accumulated in an object such as the sample container 110 based on the probe 602 with the charge eliminating function of the third embodiment. Yes.
- the arm 601 in the dispensing mechanism 105 is provided with a liquid level detection control unit 607 and a charge amount measurement unit 801.
- a signal line connected to the inner cylinder 603 of the dispensing probe 602 is connected to the liquid level detection circuit 803 and the charge amount measurement circuit 804 via the analog switch 802.
- the electric signal is switched by the control unit 805.
- the charge amount measurement circuit 804 includes an amplifier 807 that amplifies the minute voltage V806 and an A / D converter 808, and the A / D conversion result of the minute voltage V806 generated at the tip of the dispensing probe 602 is sent to the control unit 805. Sent.
- the automatic analyzer is equipped with a well-known sample container height detector 809 that detects the height of the sample container 110.
- the installed sample container 110 is moved and transported on the transport line 101 of the automatic analyzer, stops at the dispensing position 206 in the vicinity of the dispensing mechanism 105, and the dispensing probe 602 stops in the sky, thereby dispensing. It becomes an operation preparation system.
- Charges Q810 that become static electricity are accumulated in the mouth of the sample container 110.
- the distance d811 can be calculated from the known descending position of the tip of the dispensing probe 602 and the height of the sample container obtained from the sample container height detector 809.
- Air 812 having a dielectric constant ⁇ exists between the mouth of the sample container 110 and the tip of the dispensing probe 602.
- FIG. 9 is an illustration of a general static elimination unit 901 in which a static elimination control unit 205 is combined with a liquid level detection and charge amount measurement unit 801.
- the total charge removal unit 901 includes a liquid level detection unit 902, a charge amount measurement unit 903, a high voltage generation unit 904, and a control unit 805.
- the inner cylinder 603 of the dispensing probe 602 is an analog switch that is switched by the control unit 805. It is connected to one of the circuits via 802. By combining these, before the start of the dispensing operation, the dispensing probe 602 is connected to the charge amount measuring unit 903 to measure the charge Q810 accumulated in the mouth of the sample container 110, and according to the magnitude of the charge Q810.
- the discharge ion 202 is released from the dispensing probe 602 connected to the high voltage generation unit 904 so that the charge Q810 is reduced, and then switched to the liquid level detection unit 902, and the dispensing probe 602 is lowered to move the sample.
- a dispensing function can be realized without being affected by static electricity.
- the static eliminator adjusts the amount of ionizing ions to be blown according to the charge amount measured by the charge amount measurement unit.
- control unit such as a static elimination control unit.
- FIG. 10 shows an example of the charge removal flow according to the charge amount in the present invention.
- a plurality of static elimination flows can be considered, and a flow can be selected for each application such as corresponding to high-speed operation.
- the charge removal operation 1103 is performed, and then the charge amount measurement 1104 is performed. If the charge amount is sufficiently reduced, the dispensing operation 1105 is performed. A static elimination operation 1103 is performed.
- the charge amount measurement 1104 is performed, and then the charge removal operation 1103 corresponding to the charge amount is performed. However, the charge amount measurement 1104 is performed again, and the charge amount is sufficiently reduced. For example, a dispensing operation 1105 is performed.
- the flow A1101 is useful for a system in which the static elimination strength in the static elimination operation 1103 is fixed and cannot be controlled.
- the flow B1106 is useful in a system capable of controlling the strength of static elimination in the static elimination operation 1103. If it is known that the charge amount is sufficiently reduced in the static elimination operation 1103, there is no need to measure the charge amount again. This is a flow that can be operated quickly.
- Flow C1107 is a flow that can be used with either method regardless of whether the strength of static elimination is fixed or controllable, and if the charge amount is sufficiently low from the beginning, it can also be a route that no static elimination operation is performed. This can contribute to the speeding up of static elimination work up to dispensing operation.
- the user may be able to freely set the use of these flows.
- static electricity is hardly charged from the beginning, and therefore, it is possible to use the flow C1107 to improve the processing capacity.
- the user can select the function or combination of functions to be used among the liquid level detection function, charge amount measurement function, and static electricity removal function provided in the probe so that these flows can be properly used. It is desirable to provide a display unit.
- the structure of the first and second embodiments may be adopted for the static elimination ion blowing mechanism.
- the rack is used for transporting the sample container in the embodiment described above.
- the static neutralization apparatus according to the present invention is effective.
- Static electricity 208: Dispensing position, 401 ... Air nozzle, 402 ... Compressed air generating unit, 403 ... Air pipe, 404 ... Air pump, 405 ... Compressed air tank, 406 ... Solenoid valve, 601 ... Arm, 602 ... Dispensing with static elimination function Probe, 603 ... inner cylinder, 604 ... gap, 605 ... outer cylinder, 606 ... tip of inner cylinder, 607 ... liquid level detection control unit, 608 ... high voltage generation , 609 ... Ground electrode, 610 ... Tip of outer cylinder, 801 ... Charge amount measurement unit, 802 ... Analog switch, 803 ... Liquid level detection circuit, 804 ...
- Charge amount measurement circuit 805 ... Control unit, 806 ... Minute voltage, 807 ... Amplifier, 808 ... A / D converter, 809 ... Sample container height detector, 810 ... Charge Q, 811 ... Distance d, 812 ... Air of permittivity ⁇ , 813 ... Cross sectional area S, 814 ... Capacitance C, Reference numeral 901: Comprehensive static elimination unit, 902 ... Liquid level detection unit, 903 ... Charge amount measurement unit, 904 ... High voltage generation unit, 1101 ... Flow A, 1102 ... Move to dispensing position, 1103 ... Discharge operation, 1104 ... Charge amount measurement 1105: Dispensing operation 1106: Flow B 1107: Flow C
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Abstract
Description
、断面積S(813)、距離dから、静電容量C(814)を算出することができ、C=ε・S/dとなる。また、静電容量C(814)と、分注プローブ602の先端に発生した微小電圧806から、電荷Q(810)を算出することができ、Q=C・Vと導くことができる。
Claims (11)
- 液体を吸引するプローブと前記プローブを保持するアームを備えた分注機構と、
前記分注機構に備えられた、除電イオンの発生源と前記発生源で発生した除電イオンを対象物に送風するための除電イオン送風機構とを有する静電気除去装置と、
を備えることを特徴とする自動分析装置。 - 請求項1記載の自動分析装置において、
液体は検体であって、検体を収容する検体容器と、検体と試薬との混合液を収容する反応容器と、を備え、
前記分注機構は、検体を吸引する分注位置で前記検体容器から検体を吸引し、検体を吐出する分注位置で前記反応容器に検体を吐出し、
前記静電気除去装置は、前記検体容器および前記反応容器の除電を行うことを特徴とする自動分析装置。 - 請求項1記載の自動分析装置において、
さらに、前記分注機構の上昇下降動作および水平動作を制御する制御部と、
前記発生源と前記除電イオン送風機構を制御する除電制御ユニットとを備え、
前記除電制御ユニットは、前記分注機構が下降動作をする前に、液体を収容する容器の除電を行い、前記分注機構が下降動作をしている間は、少なくとも前記除電イオン送風機構を停止し、
前記プローブは、前記除電イオン送風機構を停止した状態で液体を吸引することを特徴とする自動分析装置。 - 請求項1記載の自動分析装置において、
前記除電イオン送風機構は、送風ファン、又は、圧縮空気発生部から発生した圧縮空気を送風する空気管であることを特徴とする自動分析装置。 - 請求項1記載の自動分析装置において、
前記発生源は、前記プローブに接続され、前記プローブに除電イオンを発生させることを特徴とする自動分析装置。 - 請求項5記載の自動分析装置において、
前記プローブは、液体を吸引するための内筒と前記内筒を囲う外筒とを有し、
前記除電イオン送風機構は、圧縮空気発生部から発生した圧縮空気を送風する外筒であって、
前記圧縮空気発生部から発生した圧縮空気は、前記外筒を介して、前記プローブに発生した除電イオンを対象物に送風することを特徴とする自動分析装置。 - 請求項5記載の自動分析装置において、
液体は検体であって、前記対象物として検体を収容する検体容器を備え、
さらに、前記プローブを用い非接触で前記検体容器に帯電した電荷量を測定する帯電量計測ユニットを備えることを特徴とする自動分析装置。 - 請求項7記載の自動分析装置において、
前記プローブは、液面検知機能を備えることを特徴とする自動分析装置。 - 請求項7記載の自動分析装置において、
前記静電気除去装置は、前記帯電量計測ユニットで測定された帯電量に応じて、送風する除電イオンの量を調整することを特徴とする自動分析装置。 - 請求項8記載の自動分析装置において、
前記検体容器に収容された検体の液面検知を、前記プローブを用いて行う前に、前記帯電量計測ユニットでの前記検体容器に帯電した電荷量の測定、および、前記除電イオン送風機構での前記検体容器への送風を実施することを特徴とする自動分析装置。 - 請求項10記載の自動分析装置において、
前記プローブに備わった、液面検知機能、電荷量測定機能、静電気除去機能のうち、ユーザーは使用する機能又は機能の組み合わせを選択できる表示部を備えることを特徴とする自動分析装置。
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EP15821639.0A EP3173795B1 (en) | 2014-07-18 | 2015-07-06 | Automatic analysis device |
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JP7525910B2 (ja) | 2019-06-18 | 2024-07-31 | キアル・ベー・フェー | 切開装置 |
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EP3173795A4 (en) | 2018-03-14 |
US10191074B2 (en) | 2019-01-29 |
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