WO2006046537A1 - 遠心分離装置およびこれを備えた分析装置 - Google Patents
遠心分離装置およびこれを備えた分析装置 Download PDFInfo
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- WO2006046537A1 WO2006046537A1 PCT/JP2005/019556 JP2005019556W WO2006046537A1 WO 2006046537 A1 WO2006046537 A1 WO 2006046537A1 JP 2005019556 W JP2005019556 W JP 2005019556W WO 2006046537 A1 WO2006046537 A1 WO 2006046537A1
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- Prior art keywords
- rotor
- container
- rotated
- containers
- wall
- Prior art date
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- Ceased
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/49—Blood
- G01N33/491—Blood by separating the blood components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
- B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
- B04B5/0414—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes
- B04B5/0421—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes pivotably mounted
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
- G01N15/042—Investigating sedimentation of particle suspensions by centrifuging and investigating centrifugates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
- G01N15/05—Investigating sedimentation of particle suspensions in blood
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00029—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with flat sample substrates, e.g. slides
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00029—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with flat sample substrates, e.g. slides
- G01N2035/00099—Characterised by type of test elements
- G01N2035/00108—Test strips, e.g. paper
- G01N2035/00118—Test strips, e.g. paper for multiple tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N2035/00465—Separating and mixing arrangements
- G01N2035/00495—Centrifuges
-
- 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
- G01N35/1081—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane
- G01N35/1083—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices characterised by the means for relatively moving the transfer device and the containers in an horizontal plane with one horizontal degree of freedom
- G01N2035/1086—Cylindrical, e.g. variable angle
Definitions
- the present invention relates to a centrifugal separator and an analysis apparatus including the same.
- the concentration of various components such as glucose, albumin and calcium is usually measured in addition to the number (concentration) of red blood cells and white blood cells in the blood.
- concentrations are measured by optical methods. More specifically, the sample is spotted on the reagent pad of the test piece impregnated with a predetermined reagent, and the state of the reflected light of the light irradiated to the reagent pad is grasped at that time. It is done by. In this case, since there are individual differences in the number of blood cells, it is necessary to avoid measurement errors due to blood cell components when measuring concentrations of components other than blood cell components. For this reason, the whole blood is centrifuged and the blood cell components are precipitated, and then the supernatant is collected and used as a sample to be spotted on a reagent pad for measurement.
- a container with a lid has a large number of parts as much as the lid is necessary, and thus the material cost is high. Further, since the lid needs to be attached to the container, workability at the time of manufacture is poor. Further, since the lid of the container suppresses evaporation of the liquid inside the container, it is desirable that the opening diameter of the lid is set as small as possible within the range in which the nozzle of the pipette device can be inserted. Therefore, when collecting the centrifuge liquid using a pipette device, it is necessary to position the opening of the lid with high accuracy in order to reliably insert the nozzle into the container. Jiru. As a result, the apparatus configuration becomes complicated and the manufacturing cost increases.
- Patent Document 1 International Publication No. 02Z016043 Pamphlet
- An object of the present invention is to provide a technique capable of performing a centrifugal separation operation advantageously in terms of cost.
- a rotor that supports one or more containers provided with an upper opening in a swingable manner and is rotated to apply centrifugal force to the one or more containers.
- the rotor is provided with evaporation suppression means for suppressing the separation target liquid stored in the one or more containers from evaporating when the rotor is rotated.
- a centrifuge device is provided.
- an analyzer for analyzing one or more components contained in a sample comprising a centrifuge for separating a solid component contained in a sample from a liquid component
- the centrifugal separator includes a rotor that supports one or more containers provided with an upper opening in a swingable manner and is rotated to apply centrifugal force to the one or more containers.
- the rotor is provided with an analyzer that includes an evaporation suppression means for suppressing the liquid to be separated contained in the one or more containers from evaporating when the rotor is rotated. .
- the evaporation suppression means is configured to restrict the flow of air around the one or more containers when the rotor supporting the one or more containers is rotated.
- the evaporation suppression means is preferably configured to have an upright wall positioned in front of the upper opening when the rotor is rotated to rotate one or more containers.
- the standing wall is formed integrally with the rotor, for example.
- the standing wall may be formed so as to be movable in the radial direction of the rotor.
- the standing wall in this case is configured to move outward in the radial direction by centrifugal force when the rotor is rotated, for example.
- the evaporation suppression means can be configured to have a peripheral wall positioned around the upper opening of the container when, for example, the rotor is rotated to rotate one or more containers.
- the peripheral wall includes an upper wall extending from the upper part of the standing wall toward the radially outward side of the rotor. It is out.
- the peripheral wall may further include a lower wall positioned below the upper wall and extending from the standing wall toward the radially outer side of the rotor.
- the upper and lower walls do not necessarily have to be formed integrally with the standing wall.
- the evaporation suppression means further includes a pair of side walls located around the upper opening and projecting upward when the container is rotated by rotating the rotor.
- the pair of side walls are connected to both ends of the standing wall.
- Each side wall has, for example, an engaging portion for engaging the rotating shaft of the container when supporting one or more containers.
- the rotor is configured to support, for example, one container, and the container is supported so that the center of gravity is eccentric with respect to the rotation axis of the rotor in the absence of the rotor.
- the center of gravity of the rotor and the container as a whole is increased. It is comprised so that it may be located on the said rotating shaft center.
- FIG. 1 is an overall perspective view showing an example of an analyzer according to the present invention.
- FIG. 2 is a plan view showing the internal configuration of the analyzer of FIG.
- FIG. 3 is a cross-sectional view taken along line III-III in FIG.
- FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
- FIG. 5 is an overall perspective view showing a rotor and a container of the centrifugal separator in the analyzer shown in FIG. 1.
- FIG. 6 is an overall perspective view of the rotor shown in FIG.
- FIG. 7 is a schematic diagram showing detection means in the analyzer.
- FIG. 8 is a graph showing an output example from the light receiving unit in the detecting means shown in FIG.
- FIG. 9 is an overall side view of a stagger member of a centrifugal separator.
- FIG. 10 is an overall front view for explaining the operation of the strobe member.
- FIG. 11A is a bottom view showing another example of the rotor
- FIG. 11B is a cross-sectional view thereof.
- FIG. 12A is a bottom view for explaining the operation of the rotor shown in FIGS. 11A and 11B, and FIG. 12B is a sectional view thereof.
- the analysis apparatus 1 shown in FIGS. 1 to 4 is configured to analyze the concentration of a specific component in blood using the test pieces 2A and 2B, and includes a housing 3 and a test piece mounting table. 4. It has a centrifugal separation device 5, a positioning mechanism 6, a pipette device 7, and a photometric mechanism 8.
- the housing 3 defines the external shape of the analyzer 1 and accommodates various elements, and has an opening 30 provided on the front side. Have.
- the opening 30 is configured to be selected between an open state and a closed state by the door body 31.
- the inside and outside of the housing 3 communicate with each other, and most of them are accommodated inside the housing 3 of the specimen mounting table 4 and the centrifuge 5.
- the state exposed to the outside of the housing 3 can be selected (see FIG. 2).
- the casing 3 is provided with various operation buttons 32 and a display 33 on the right side of the upper surface, and a recording paper discharge port 34 on the back side on the left side.
- the various operation buttons 32 are for setting measurement conditions or defining the operation of the analyzer 1.
- the display 33 displays measurement results, operation results of the operation buttons 32, and the like.
- the test piece mounting table 4 is for mounting the test pieces 2A and 2B, and includes a first slit 41 and a plurality of (six in this embodiment).
- the second slit 42 is provided.
- the first slit 41 extends in the directions Dl and D2 of the housing 3 and holds the test piece 2A for multi-component measurement.
- the test piece 2A for multi-component measurement is provided with a plurality (five in this embodiment) of reagent pads 21A arranged in the longitudinal direction of the strip-shaped substrate 20A.
- Each of the reagent pads 21A carries a reagent that reacts with a specific component such as glucose, albumin, calcium, etc., for example.
- the second slit 42 extends in the directions D3 and D4 of the housing 3 and holds the test piece 2B for single component measurement.
- the test piece 2B for single component measurement is one in which one reagent pad 21B is provided on a strip-shaped substrate 20B.
- the reagent pad 21B carries a reagent that reacts with a specific component such as glucose, albumin, calcium, and the like, for example.
- the test specimen mounting table 4 is movable in the directions D3 and D4 with respect to the housing 3 by a known mechanism. That is, the test specimen mounting table 4 holds or removes the test specimens 2A and 2B.
- the first and second slits 41 and 42 are exposed to the outside of the casing 3, while the first and second slits 41 and 42 are exposed to the inside of the casing 3 when the reagent pads 21A and 21B are measured. 2
- the slits 41 and 42 are accommodated.
- the centrifugal separator 5 is for separating a solid component (for example, a blood cell component) from the blood held in the container 9.
- the centrifugal separator 5 includes a casing 50 and a rotor 51.
- the casing 50 is for accommodating various elements and moving them together, and is capable of reciprocating on the table 35 in the directions D3 and D4 by a known drive mechanism 36. Since the casing 50 can move back and forth in the directions D3 and D4, the centrifugal separator 5 (rotor 51) is exposed in front of the housing 3, and the centrifugal separator 5 (rotor 51) is exposed. It is possible to select a state of being housed in the housing 3 (see FIG. 2).
- the drive mechanism 36 for example, a rack and pinion mechanism can be adopted.
- a pione gear (not shown) integrated with the casing 50 is rotationally driven by a motor 52 disposed in the casing 50, The casing 50 is driven to reciprocate when this pion gear meshes with a rack (not shown).
- the casing 50 has a through hole 50a provided in the upper wall 50A.
- the through hole 50 a is for allowing the rotor 51 to rotate and allowing the container 9 to be attached to and detached from the rotor 51.
- the upper wall 50A is further provided with a chip set portion 53 for holding a chip 70 to be attached to the pipette device 7 (see FIGS. 3 and 4).
- a motor 54 is disposed inside the casing 50 so as to be positioned immediately below the through hole 50a.
- the motor 54 is for applying a rotational force to the rotor 51, and the rotation shaft 54 A is pivotally supported on the bottom wall 51 A of the rotor 51.
- the rotation output of the motor 54A is transmitted to the rotor 51 via the rotating shaft 54A, and the rotor 51 is driven to rotate.
- the rotor 51 is for applying a centrifugal force to the blood stored in the container 9, and includes a container holding part 55, a convex part 56, and a detected part 57. , And a locking hole 58.
- the container 9 includes a container body 90 having an accommodation space 90A and an upper opening 90B, a pair of shaft portions 91 protruding sideways at the upper portion of the container body 90, and ends of the shaft portions 91. And a stagger portion 92 provided in the portion is used.
- the container holding part 55 is for holding the container 9, and has a support wall 55A and a storage space 55B.
- the support wall 55A supports the container 9 and regulates the airflow around the container 9 when the rotor 51 is rotated.
- the support wall 55A has two side walls 55Aa, a back wall 55Ab, an upper wall 55Ac, and a lower wall 55Ad, and the whole protrudes upward from the upper surface of the rotor 51.
- the two side walls 55Aa are connected to both ends of the back wall 55Ab, and are provided at regular intervals.
- Each side wall 55Aa has a notch 55Ae for locking the shaft portion 91 of the container 9.
- the periphery of the container 9 is surrounded by the two side walls 55Aa and the back wall 55Ab, and the container 9 can swing around the shaft portion 91.
- the back wall 55Ab is for being positioned in front of the upper opening 90B in the container 9 when the rotor 51 is rotated.
- the upper wall 55A c and the lower wall 55Ad are for positioning around the upper opening 90B in the container 9 when the rotor 51 is rotated.
- the upper wall 55Ac extends from the upper end of the rear wall 55Ab toward the radially outward side of the rotor 51, and is formed so as to connect the two side walls 55Aa.
- the lower wall 55Ad extends from the rear wall 55Ab toward the outer side in the radial direction of the rotor 51 at a position lower than the upper wall 55Ad, and is formed so as to connect the two side walls 55Aa. ing.
- the lower wall 55Ad has an arcuate cutout 55Af. This notch 55Af prevents the lower wall 55Ad from interfering with the container 9 when the shaft portion 91 of the container 9 is locked to the notch 55Ae.
- the container 9 is suspended in an appropriate posture by this notch 55Af.
- the accommodation space 55B is for accommodating the container 9 in a state in which the shaft portion 91 of the container 9 is locked in the notch 55Ae of each support wall 55A and allowing the container 9 to swing.
- the rotor 51 is opened outward in the radial direction.
- the accommodation space 55B is defined by a hole provided in the support wall 55A and the rotor 51.
- the container 9 held in the container holding part 55 can be rotated upward by rotating the rotor 51 and applying a centrifugal force.
- the rear wall 55Ab of the support wall 55A is located in front of the upper opening 90B of the container 9, the upper opening 9 Inflow of gas into the container 9 through the OB can be suppressed.
- the two side walls 55Aa, the upper wall 55Ac, and the lower wall 55Ad of the support wall 55A are positioned around the upper opening 90B in the container 9, gas is also generated inside the container 9 due to this. You can suppress the inflow.
- the convex portion 56 is formed when the rotor 51 and the container 9 are rotated as a whole when the rotor 51 is rotated at a predetermined rotational speed while the container 9 holding the target amount of blood is held by the container holding portion 55. This is for balancing so that the center of the rotor is positioned on the rotation axis of the rotor 51.
- the locking hole 58 constitutes a positioning mechanism 6 to be described later.
- the pin 68 of the stopper member 61 of the positioning mechanism 6 is inserted to fix the position of the rotor 51. It is used for the purpose.
- the locking hole 58 penetrates in the vertical direction at a position where the rotational axial force of the rotor 51 is also offset, and the lower part has a wide opening to facilitate the insertion of the stopper member 61.
- the detected portion 57 is used to detect the position of the engagement hole 58 in the rotor 51 and is provided on the bottom wall 51 A of the rotor 51.
- This detected portion 57 includes a first detected portion 57A and a second detected portion 57B.
- the first detected portion 57A has a uniform reflectance as a whole, and is formed in an arc shape having a uniform width.
- the second detected portion 57B includes a plurality of linear portions 57Ba arranged in the rotational direction of the rotor 51, and is provided in a portion adjacent to the locking hole 58. That is, the position of the locking hole 58 can be specified by detecting the second detected portion 57B.
- the container holding portion 55 can be detected by specifying the position of the locking hole 58.
- the first and second detected portions 57A and 57B can be formed simultaneously by printing or applying a black paint, for example.
- the shape of the detected portion 57 hardly affects the balance of the center of gravity of the rotor 51 as in the case where the detected portion is formed as an uneven surface. Therefore, the provision of the detected portion 57 does not make the design of the rotor 51 difficult.
- the positioning mechanism 6 is for positioning the container 9 at a fixed position after completion of the centrifugal separation operation.
- the pair of rails of the detection means 60 and the table 35 are provided. 35A and stopper member 61 are included.
- the detecting means 60 detects the second detected portion 57B in the detected portion 57 by detecting the reflected light force when the bottom wall 51A of the rotor 51 is irradiated with light.
- the locking hole 58 in 51 is used to specify the position of the container holding portion 55.
- the detection means 60 includes a reflective photosensor 62 and a low-pass filter 63, and is disposed so as to face the bottom wall 51 A of the rotor 51. More specifically, the detection means 60 is disposed on the upper surface 59A of the guide fin 59 fixed inside the casing 50 of the centrifuge 5.
- the reflection type photosensor 62 has a light source unit 64 and a light receiving unit 65.
- the light source unit 64 is for irradiating the bottom wall 51A of the rotor 51 with light, and is configured to include, for example, an LED element.
- the light source unit 64 has a spot diameter larger than the overall size of the second detected portion 57B, which is larger than the width of each linear portion 57Ba and the interval between the plurality of linear portions 57Ba, with respect to the second detected portion 57B. It is possible to irradiate light with a small spot diameter.
- Such a function of the light source unit 64 is achieved by selecting the type of the light source unit 64 and the distance between the light source unit 64 and the bottom wall 51A of the rotor 51.
- the light receiving unit 65 is for receiving light reflected from the bottom wall 51A of the rotor 51, and is configured to include, for example, a photodiode element.
- the one-pass filter 63 is for removing a high-frequency component from the electric signal output from the light receiving unit 65, and is connected to the output unit 65 A of the light receiving unit 65.
- the detection means 60 when the light from the light source unit 63 is irradiated on the first detected portion 57A, the amount of light received by the light receiving portion 65 is the largest. On the other hand, the amount of light received by the light receiving unit 65 is maximized when light having a partial force other than the first and second detected portions 57A and 57B is irradiated. When the second detected portion 57A is irradiated with as much light as 64 light sources, the light receiving amount becomes an intermediate level. Therefore, when the rotor 51 is rotated in the direction D5 in FIG. 5, the output from the light receiving unit 65 is repeated from high level ⁇ intermediate level ⁇ low level.
- the output unit 65A of the light receiving unit 65 is connected to the low pass filter 63, even if a high frequency signal is output from the light receiving unit 65 when the second detected unit 57B is irradiated with light (
- the low-pass filter 63 converts the signal to an intermediate level signal (see the virtual line in FIG. 8). Therefore, in the detection means 60, the output from the low-pass filter 63 is set to a low level, a high level, or an intermediate level.
- the second detected portion 57B can be detected by confirming the intermediate level signal among these levels.
- the detecting means 60 further has a role of detecting the rotational speed of the rotor 51.
- the number of revolutions in the detection means 60 can be detected, for example, by counting the time point when the output force from the low-pass filter 63 changes to the low level force (reference symbol T in FIG. 8).
- Such a detecting means 60 has a simple configuration and can be constructed with an advantage in terms of cost as compared with a method of detecting a detected portion by an electric or magnetic method. Further, in the above-described detection means 60, it is not necessary to actively use a pulse motor as means for rotating the rotor 51, and in this respect, it is easy to achieve downsizing of the apparatus.
- the pair of guide rails 35A are for moving a stopper member 61 in a positioning mechanism 6 to be described later.
- Each guide rail 35A protrudes upward, and has two flat surfaces 35Aa and 35Ab having different heights, and an inclined surface 35Ac that connects these flat surfaces 35Aa and 35Ab. Yes.
- the stopper member 61 is used when fixing the position of the rotor 51, and is movable in the vertical direction.
- the stopper member 61 has a support portion 66, a roller 67, and a pin 68.
- the support portion 66 protrudes from the casing 50 via a through hole 50b provided in the bottom wall 50B of the casing 50 in the centrifugal separator 5.
- the roller 67 is for allowing the stopper member 61 to move on the flat surfaces 35Aa and 35Ab and the inclined surface 35Ac of the guide rail 35A in the table 35, and is rotatably fixed to the support portion 66. ing.
- the pin 68 is for insertion into the locking hole 58 of the rotor 51 when fixing the position of the rotor 51, and protrudes upward from the support portion 66.
- This pin 68 is threaded through the through hole 59B of the guide fin 59 whose upper part is fixed in the casing 50, while the lower part is threaded through the through hole 50b of the bottom wall 50B of the casing 50.
- the vertical movement is possible relative to each of the through holes 5 Ob and 59B.
- a coil panel 69 is disposed between them. For this reason, the support portion 66 is urged downward, and each roller 67 is in contact with the guide rail 35A.
- the stopper member 61 is disposed on the lower side so that each roller 67 contacts the guide rail 35A in a state where the pin 68 is passed through the casing 50 and the through holes 50b and 59B of the guide fin 59. Is being energized. Therefore, when the casing 50 moves, the roller 67 moves with the casing 50 while rotating on the guide rail 35A. Then, the position of the pin 68 moves up and down according to the height of the portion of the guide rail 35A where the roller 67 moves. For example, when the stopper member 61 moves toward the left side of the right side force in FIG.
- the locking hole 58 of the rotor 51 is positioned above the pin 68 when the second detected portion 57B of the detected portion 57 faces the reflective photosensor 62 of the detecting means 60. It is provided. Therefore, if the pin 68 is moved upward with the locking hole 58 positioned above the pin 68, the tip of the pin 68 is inserted into the locking hole 58, the rotor 51 is locked, and its rotation is Limited. At this time, since the lower portion of the locking hole 58 has a wider opening, the insertion of the pin 68 into the locking hole 68 is relatively simple and the force can be reliably performed.
- the pipette device 7 collects the separated supernatant (plasma) in the container 9 after the centrifugation, and this is used as the reagent pads 21A, 21B of the test pieces 2A, 2B. It can be moved vertically and horizontally.
- the pipette device 7 has a nozzle portion 71 to which a tip 70 is attached.
- the pipette device 7 has a state in which air is sucked from the nozzle portion 71 by external power and a state in which air in the nozzle portion 71 is discharged. Can be selected.
- the tip 70 is attached to the nozzle portion 71 and the nozzle If the tip of the tip 70 is inserted into the liquid while the air in the portion 71 is discharged, and the air is sucked into the nozzle portion 71, the liquid is sucked into the tip 70. If the air in the nozzle portion 71 is discharged from this state, the liquid held in the tip 70 is discharged.
- the photometric mechanism 8 shown in FIGS. 2 and 4 is for irradiating the reagent pads 21A and 21B of the test pieces 2A and 2B while receiving the reflected light from the reagent pads 21A and 21B. It is.
- This photometric mechanism 8 has a light emitting element and a light receiving element which are not shown.
- the light emitting element is for irradiating light to the reagent pads 21A and 21B of the test pieces 2A and 2B, and is composed of, for example, an LED lamp.
- the light receiving element is for receiving the reflected light from the reagent pads 21A, 21B, and is constituted by, for example, a photodiode.
- the blood is first centrifuged to prepare a sample.
- the blood is centrifuged by rotating the rotor 51 after the container 9 holding the blood is supported by the rotor 51.
- the container 9 is set on the rotor 51 in a state where the door 31 of the housing 3 is opened and the centrifuge 5 is positioned on the front side of the housing 3.
- This state is automatically achieved by, for example, pressing a predetermined operation button 32 after opening the door body 31. That is, the drive mechanism 36 is activated by the user's button operation, and the centrifugal separator 5 is projected to the outside of the housing 3.
- the centrifuge 5 can be automatically moved by opening the door 31.
- the test specimen mounting table 4 is automatically moved. You may comprise.
- the container 9 is set in the rotor 51 by locking the shaft portion 91 of the container 9 in the notch 55Ae of the side wall 55Aa of the rotor 51. At this time, since the notch 55Af is provided in the lower wall 55Ad, the container 9 is supported in a vertical state with respect to the support wall 55A of the rotor 51 that is not obstructed by the lower wall 55Ad.
- the rotation of the rotor 51 is performed in a state where the centrifuge 5 is housed in the housing 3. This state is achieved, for example, when the user presses a predetermined operation button 32.
- the centrifugal separator 5 is accommodated in the housing 3 with the container 9 set in the rotor 51, for example, by pressing the predetermined operation button 32, the rotor 5 1 is rotated. Further, by closing the door body 31, the rotor 51 may be automatically rotated without depending on the button operation of the user.
- a centrifugal force acts on the container 9, and the container 9 rotates about the shaft portion 91 to become a horizontal state.
- the container 9 In this horizontal state, the container 9 is surrounded by the support wall 55A, and a centrifugal force directed toward the bottom side of the container 9 is applied to the blood stored in the container 9. Blood subjected to centrifugal force is separated into a solid component (blood cell component) and plasma (supernatant).
- the rotational speed of the rotor 51 is, for example, 8000 to 9000 rpm (1500 to 2000 G).
- the upper opening 90B of the container 9 can be set relatively large, the positioning for collecting the liquid inside the container 9 by the pipette device 7 is performed when the container is provided with a lid. Compared to the rough and better. As a result, the device configuration of the analyzer 1 can be simplified and the manufacturing cost can be reduced.
- test pieces 2A and 2B are set on the test piece mounting table 4 before and after the blood centrifugation operation.
- the test pieces 2A and 2B are set in a state where the test piece mounting table 4 is moved to the front side of the housing 3 and the first slit 41 and the second slit 42 are exposed. In this state, for example, as in the case of the centrifugal separator 5, a predetermined operation button Automatically achieved by pressing B or opening door 31. Further, when the test pieces 2A and 2B are set on the test piece mounting table 4, the door body 31 is closed after the test piece mounting table 4 is moved into the housing 3. The movement of the test specimen mounting table 4 to the inside of the housing 3 is performed in the same manner as the centrifuge 5.
- test pieces 2A and 2B to be set are selected according to the type of the specific component to be measured.
- the test piece 2A for multi-component measurement as shown in Fig. 2 is the first slit on the test piece mounting table 4.
- the test piece 2B for single component measurement is individually set in the second slit 42.
- the following description will be given on the assumption that only the test piece 2A for multi-component measurement is set for measurement.
- the chip 70 is set in the chip setting section 53 of the centrifuge 5.
- the concentration of the specific component is automatically measured.
- the measurement in the analyzer 1 is performed by spotting a supernatant liquid (plasma) on the reagent pad 21A and then measuring the coloration state of the reagent pad 21A by an optical method.
- the rotation of the rotor 51 is stopped so that the container holding portion 55 (the locking hole 58) of the rotor 51 becomes the target position. This is done with the position fixed at the previous position.
- the rotor 51 is fixed to the target position by using the positioning mechanism 6.
- the fixing of the rotor 51 using the positioning mechanism 6 includes a step of detecting the second detected portion 57B in the detected portion 57 by the detecting means 60, a step of aligning the rotor 51, and a step of fixing the rotor 51. Contains.
- the step of detecting the second detected portion 57B light is continuously applied to the bottom wall 51A of the rotor 51 with the rotor 51 rotated intermittently little by little and with a certain speed rotated at a low speed. This is based on the reflected light when irradiating. That is, when the light from the light source section 64 of the reflective photosensor 62 in the detection means 60 is irradiated to the bottom wall 51A of the rotor 51, the light is A high level, low level, or intermediate level signal is output from the light receiving unit 65 (low-pass filter 63) of the reflective photosensor 62 in accordance with the irradiated portion. Then, when light is irradiated on the portion corresponding to the second detected portion 57B, an intermediate level signal is output. Therefore, the second detected portion 57B can be detected by confirming that the intermediate level signal is output in the detection means 60.
- the step of aligning the rotor 51 is performed by stopping the rotor 51 in a state where the second detected portion 57B is irradiated with light (a state where an intermediate level signal is confirmed in the detection means 60). Done.
- the locking hole 58 is located above the pin 68.
- the rotor 51 is fixed by inserting the pin 68 of the stopper member 61 into the locking hole 58 of the rotor 51. That is, when the second detected portion 57B is opposed to the light source portion 64, the locking hole 58 is located above the pin 68. Therefore, by moving the pin 68 upward, the pin is inserted into the locking hole 58. 68 is inserted.
- the pin 68 is inserted into the locking hole 58 by moving the centrifugal separator 5 (casing 50) in the direction D3 by the drive mechanism 36. That is, when the casing 50 is moved in the direction D3, the stopper member 61 is also moved together with the casing 50, and the roller 67 of the stopper member 61 is moved on the guide rail 35A.
- the upper surface of the guide rail 35A is a force that varies with the lower flat surface 35Ab, the inclined surface 35Ac, and the higher flat surface 35Aa. Accordingly, the stopper member 61 moves upward. Since the locking hole 58 is located above the pin 68, when the stopper member 61 moves upward, the tip end portion of the pin 68 is inserted into the locking hole 58. As a result, the rotor 51 is locked and its rotation is restricted, and the container 9 is in a state of being located at the target site.
- the suction and discharge of plasma are repeated a number of times according to the number of reagent pads 21A to be measured. Is done. Further, plasma may be aspirated once and plasma may be discharged a plurality of times.
- the pipette device 7 is further moved down to enter the tip 70. This is done automatically by inserting the nozzle part 71.
- the plasma suction the air in the nozzle portion 71 is discharged by external power, the pipette device 7 is moved above the container 9, and then the pipette device 7 is moved downward to move the tip 70. It is carried out by inserting into the supernatant (plasma) and sucking the air in the nozzle section 71 by external power. Then, a negative pressure is generated in the chip 70, the supernatant liquid is sucked, and plasma is held in the chip 70.
- the plasma is discharged by moving the pipette device 7 onto the intended reagent pad 21A and then discharging the air in the nozzle portion 71 again by external power.
- the reagent impregnated in the reagent pad 21A reacts with a specific component in the plasma, and the reagent is colored according to the concentration of the specific component.
- the photometric measurement of the colored state of the reagent pad 21A is performed using the photometric mechanism 8.
- the reagent pad 21A is irradiated with light while moving in the direction D2, and the reflected light at that time is received. Then, according to the output from the photometry mechanism 8 corresponding to each reagent pad 21A, the degree of coloration of each reagent pad 21A and the concentration of a specific component contained in plasma are calculated.
- the present invention is not limited to the configuration adopted in the embodiment described above.
- the rotor in the centrifugal separator for example, the configuration shown in FIGS. 11 and 12 is adopted.
- the rotor 51 / is different from the rotor 51 (see FIGS. 5 and 6) of the analyzer 1 described above in the configuration of the support wall 55.
- the support wall 55A ' has two side walls 55Aa' and a back wall 55Ab ', and is movable in the radial direction of the back wall 55Ab' force data 51 / with respect to each side wall 55Aa ⁇ .
- Each side wall 55Aa ′ has a notch 55AcT and a groove 55Ae ′.
- the notch 55AcT is for locking the shaft portion 91 of the container 9.
- the groove 55Ae ′ is for guiding the movement of the back wall 55Ab ′, and extends in a substantially radial direction of the rotor 51 /.
- the rear wall 55Ab ' has two convex portions 55Af' for engaging with the groove portions 55A of each side wall 55Aa ⁇ , and the coil panel 55Ah with respect to the fin 55Ag 'provided on the rotor 51 / Connected via '.
- the back wall 55Ab ′ is located at a position spaced apart from the container 9 by a certain distance when the rotor 51 / is not rotated.
- an upper wall may be provided so as to be positioned around the upper opening 90B in the container 9 when the rotor 51 / is rotated.
- This upper wall extends from the upper part of the rear wall 55Ab ′ toward the radially outward side of the rotor 51 /, or can be configured as a bridge between the two side walls 55Aa ′.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Hematology (AREA)
- Biomedical Technology (AREA)
- Dispersion Chemistry (AREA)
- Ecology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Urology & Nephrology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Centrifugal Separators (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005800372677A CN101048232B (zh) | 2004-10-28 | 2005-10-25 | 离心分离装置和配备该装置的分析装置 |
| EP05799016.0A EP1820573B1 (en) | 2004-10-28 | 2005-10-25 | Centrifugal separator and analyzer provided with same |
| JP2006543154A JP4814797B2 (ja) | 2004-10-28 | 2005-10-25 | 遠心分離装置およびこれを備えた分析装置 |
| US11/666,139 US7942800B2 (en) | 2004-10-28 | 2005-10-25 | Centrifugal separator and analyzer provided with same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-313965 | 2004-10-28 | ||
| JP2004313965 | 2004-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006046537A1 true WO2006046537A1 (ja) | 2006-05-04 |
Family
ID=36227777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/019556 Ceased WO2006046537A1 (ja) | 2004-10-28 | 2005-10-25 | 遠心分離装置およびこれを備えた分析装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7942800B2 (ja) |
| EP (1) | EP1820573B1 (ja) |
| JP (1) | JP4814797B2 (ja) |
| CN (1) | CN101048232B (ja) |
| WO (1) | WO2006046537A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145260A (ja) * | 2007-12-17 | 2009-07-02 | Fuji Electric Holdings Co Ltd | 遠心分離方法及び遠心分離装置 |
| WO2009093731A1 (ja) * | 2008-01-25 | 2009-07-30 | Arkray, Inc. | 遠心装置、これを用いた分析装置、および遠心装置用容器 |
| US10101318B2 (en) | 2015-01-30 | 2018-10-16 | Fujifilm Corporation | Measurement apparatus |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12222357B2 (en) * | 2019-05-16 | 2025-02-11 | Hitachi High-Tech Corporation | Automatic analyzer |
| CN111060372B (zh) * | 2020-01-09 | 2024-07-23 | 山西医科大学第二医院 | 一种血型鉴定中便捷式血样处理装置 |
| USD962473S1 (en) * | 2020-12-01 | 2022-08-30 | Schweitzer Biotech Company Ltd. | Device for extracting and amplifying nucleic acid |
| DE102022122076A1 (de) * | 2022-08-31 | 2024-02-29 | Andreas Hettich Gmbh & Co. Kg | Zentrifuge und Verfahren zum Betrieb dieser Zentrifuge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131567A (en) * | 1977-04-22 | 1978-11-16 | Hitachi Koki Co Ltd | Centrifugal separator |
| WO2002016043A1 (fr) * | 2000-08-18 | 2002-02-28 | Arkray, Inc. | Separateur centrifuge et analyseur comprenant ce dernier |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2202157A (en) * | 1937-06-30 | 1940-05-28 | Henri G Levy | Centrifuge |
| JPS6050620B2 (ja) * | 1979-08-22 | 1985-11-09 | 株式会社日立製作所 | 車両振動の予見制御装置 |
| US4342419A (en) * | 1980-10-31 | 1982-08-03 | Beckman Instruments, Inc. | Safety cover for centrifuge bucket |
| US4718885A (en) * | 1986-12-18 | 1988-01-12 | E. I. Du Pont De Nemours And Company | Swinging bucket centrifuge rotor having an uninterrupted knife edge pivot |
| JP3482758B2 (ja) * | 1996-02-09 | 2004-01-06 | 日立工機株式会社 | 遠心分離機用アングルロータ |
| US5935051A (en) * | 1997-08-29 | 1999-08-10 | Beckman Instruments, Inc. | Blood separation device |
| US6811531B2 (en) * | 2002-04-22 | 2004-11-02 | Kenneth J. Moscone, Sr. | Horizontal centrifuge rotor |
| JPWO2006035801A1 (ja) * | 2004-09-30 | 2008-05-15 | アークレイ株式会社 | 遠心分離装置およびこれを備えた分析装置 |
-
2005
- 2005-10-25 EP EP05799016.0A patent/EP1820573B1/en not_active Expired - Lifetime
- 2005-10-25 CN CN2005800372677A patent/CN101048232B/zh not_active Expired - Fee Related
- 2005-10-25 US US11/666,139 patent/US7942800B2/en active Active
- 2005-10-25 JP JP2006543154A patent/JP4814797B2/ja not_active Expired - Fee Related
- 2005-10-25 WO PCT/JP2005/019556 patent/WO2006046537A1/ja not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131567A (en) * | 1977-04-22 | 1978-11-16 | Hitachi Koki Co Ltd | Centrifugal separator |
| WO2002016043A1 (fr) * | 2000-08-18 | 2002-02-28 | Arkray, Inc. | Separateur centrifuge et analyseur comprenant ce dernier |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1820573A4 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009145260A (ja) * | 2007-12-17 | 2009-07-02 | Fuji Electric Holdings Co Ltd | 遠心分離方法及び遠心分離装置 |
| WO2009093731A1 (ja) * | 2008-01-25 | 2009-07-30 | Arkray, Inc. | 遠心装置、これを用いた分析装置、および遠心装置用容器 |
| US10101318B2 (en) | 2015-01-30 | 2018-10-16 | Fujifilm Corporation | Measurement apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4814797B2 (ja) | 2011-11-16 |
| EP1820573A1 (en) | 2007-08-22 |
| EP1820573B1 (en) | 2016-02-03 |
| JPWO2006046537A1 (ja) | 2008-05-22 |
| CN101048232B (zh) | 2010-05-05 |
| US20070248492A1 (en) | 2007-10-25 |
| US7942800B2 (en) | 2011-05-17 |
| EP1820573A4 (en) | 2013-06-26 |
| CN101048232A (zh) | 2007-10-03 |
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