WO2006038682A1 - 固液分離・測定構造体及び固液分離・測定方法 - Google Patents
固液分離・測定構造体及び固液分離・測定方法 Download PDFInfo
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- WO2006038682A1 WO2006038682A1 PCT/JP2005/018583 JP2005018583W WO2006038682A1 WO 2006038682 A1 WO2006038682 A1 WO 2006038682A1 JP 2005018583 W JP2005018583 W JP 2005018583W WO 2006038682 A1 WO2006038682 A1 WO 2006038682A1
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- solid
- liquid
- component
- liquid separation
- blood
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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
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/07—Centrifugal type cuvettes
-
- 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
-
- 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
- G01N2035/00504—Centrifuges combined with carousels
-
- 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
- G01N2035/0439—Rotary sample carriers, i.e. carousels
- G01N2035/0446—Combinations of the above
- G01N2035/0449—Combinations of the above using centrifugal transport of liquid
-
- 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
- G01N2035/0439—Rotary sample carriers, i.e. carousels
- G01N2035/0456—Spiral tracks
Definitions
- the present invention relates to a structure for easily separating and measuring blood and other solid-liquid mixtures into solid components and liquid components, and a method for separating and measuring such solid-liquid mixtures.
- the present invention also relates to a blood component analysis chip used for blood analysis. Background art
- a commonly used method for separating a solid-liquid mixture is a centrifugal separation method using centrifugal force.
- centrifugation method requires a long separation time and requires post-treatment after solid-liquid separation, so continuous processing is not possible. Therefore, problems such as contamination may occur.
- Japanese National Publication No. 5-0 8 7 09 describes a rotating apparatus for analysis and a method for analyzing biological fluids using a solid-liquid separation technique.
- This analyzer separates blood into blood cells and plasma by the centrifugal force generated by the rotation of the disk (mouth), and analyzes each.
- a space for temporarily storing all the blood is required in the blood cell separation unit, so a relatively large space must be formed. Measures such as securing the thickness or increasing the rotor surface area must be taken.
- a force other than centrifugal force is required to remove the separated blood cells. Therefore, an additional configuration for removing blood cells is required, the structure and handling of the device are complicated, and an increase in manufacturing cost is inevitable. Disclosure of the invention
- the object of the present invention is to solve the above-mentioned problems of the prior art in the separation and measurement of blood and other solid-liquid mixtures, and to easily and rapidly and continuously and solid and liquid components. It is intended to provide an improved solid-liquid separation / measurement apparatus and solid-liquid separation / measurement method capable of continuously performing reactions and measurements at the same time and preventing problems such as contamination.
- Another object of the present invention is to provide a solid-liquid separation / measurement device, particularly a blood component analysis chip, in the form of an analysis chip that is easier to operate.
- a solid-liquid separation / measurement structure for separating and measuring a solid-liquid mixture into a solid component and a liquid component, and having a mouth-and-mouth structure comprising a rotatable disk.
- a solid-liquid mixture storage part formed in the approximate center of the substrate, and a solid-liquid mixture injected into the storage part for moving by centrifugal force in a centrifugal direction at an inclination angle from the storage part A moving flow path that is deployed,
- a method for concentrating and precipitating a solid component in the solid-liquid mixture by centrifugal force, a concentrating precipitation portion installed on the centrifugal side of the moving channel, and a liquid separated from the solid component in the concentrating precipitation portion A component for quantifying a component, and a quantification unit having a prescribed volume;
- the solid-liquid separation / measurement structure is characterized by comprising:
- Another aspect of the present invention is a method for separating and measuring a solid-liquid mixture into a solid component and a liquid component
- the solid component in the solid-liquid mixture is concentrated and precipitated by centrifugal force
- the liquid component separated in the concentrated sedimentation part is moved to the quantitative part while being controlled by centrifugal force,
- a solid-liquid separation / measurement method characterized by comprising:
- the substrate has a low-rise structure made of a rotatable disk, a blood injection part disposed substantially at the center of the substrate, and connected to the blood injection part A spiral distribution flow path, a plurality of blood cell storage portions provided to separate and store blood cells in the outer circumferential direction of the distribution flow channel, and blood components remaining without being stored in the blood cell storage portion
- the present invention is a solid component analysis reagent comprising: a reagent reaction part that quantitatively stores and reacts with an internal reagent to develop a color. Separate the solid and liquid components of the liquid mixture continuously to prevent problems such as contamination, and then measure the separated liquid components continuously, simply, quickly and inexpensively. The most important features to do That.
- the solid-liquid mixture used in the practice of the present invention is not particularly limited, and can be any mixture containing a solid component and a liquid component to be separated.
- Useful solid-liquid mixtures are, for example, liquids containing biological components, for example, disrupted solutions such as blood and cells.
- the solid-liquid mixture may be, for example, a mixed solution of particles and liquid such as waste liquid, food, medicine and the like.
- a typical example of a solid-liquid mixture is blood. This is because the blood can be separated into blood cells and plasma and analyzed for each component, and the analysis results can be used for medical examinations and clinical medicine. example The analysis results can be advantageously used for blood biochemical and immunological tests, cancer diagnosis and infectious disease diagnosis.
- a solid-liquid mixture can be separated into a solid component and a liquid component simply and inexpensively by simply injecting the solid-liquid mixture into the injection port of the measurement structure and centrifuging it.
- the present invention is advantageous in that separation can be performed without adjusting the number of revolutions of a disk used as a substrate.
- FIG. 1 is a plan view showing a preferred embodiment of a solid-liquid separation / measurement structure according to the present invention
- Fig. 1B is a plan view of the lid used in combination with the low-temperature substrate of the solid-liquid separation and measurement structure shown in Fig. 1A.
- Fig. 2 is a cross-sectional view showing the mechanism for concentrating and separating solid components by centrifugal force in the solid-liquid separation and measurement structure shown in Fig. 1A.
- Fig. 3 is an explanatory diagram that explains the mechanism that controls the moving speed of the solid-liquid mixture by changing the inclination angle and cross-sectional area of the moving flow path in the solid-liquid separation and measurement structure shown in Figure 1A. ,
- FIG. 4 is an explanatory diagram illustrating the mechanism of injecting the liquid component separated in the concentrated sedimentation part into the quantification part by centrifugal force in the solid-liquid separation / measurement structure shown in FIG. 1A.
- Fig. 5 is a cross-sectional view taken along line X--X 'of the solid-liquid separation / measurement structure shown in Fig. 4.
- FIG. 6A is a plan view showing the first stage of the operation in the solid-liquid separation / measurement structure shown in FIG. 1A.
- FIG. 6B is a plan view showing a second stage of the operation in the solid-liquid separation / measurement structure shown in FIG. 1A.
- FIG. 7A is a plan view showing a third stage of the operation in the solid-liquid separation / measurement structure shown in FIG. 1A.
- FIG. 7B is a plan view showing the fourth stage of the operation in the solid-liquid separation and measurement structure shown in FIG. 1A.
- solid-liquid separation / measurement structure solid-liquid separation / measurement method, and blood component analysis chip according to the present invention can be advantageously implemented in various forms.
- the solid-liquid separation / measurement structure according to the present invention that is, the solid-liquid separation / measurement apparatus, as described above, includes a substrate having a mouth-and-mouth structure, and a storage portion for a solid-liquid mixture formed at substantially the center of the substrate A moving flow path for moving the solid-liquid mixture injected into the storage section by centrifugal force, a concentration precipitation section for concentrating the solid component in the solid-liquid mixture by centrifugal force, and a solid component in the concentration precipitation section And a quantification unit for quantifying the liquid component separated from the liquid.
- the substrate having a mouth-and-mouth structure is preferably made of a rotatable disc.
- the disc can be formed from a variety of materials, but it can be advantageously formed from a lightweight, highly workable material. Suitable materials for the substrate are not limited to those listed below, but include, for example, plastic materials such as PDMS, polystyrene, PMMA, and polyacryl. Further, the substrate can be formed with the smallest possible size, and the diameter is usually about 10 to 40 mm, preferably about 20 to 35 mm. The thickness of the substrate can be changed over a wide range. It is preferable to have a thickness sufficient to process the quantitative portion and other necessary functional portions. The thickness of the substrate is usually about 2 to 10 mm, and preferably about 3 to 5 mm.
- the rotation speed of the low evening is usually in the range of several hundreds to several tens of thousands of rpm, and preferably in the range of 400 to 0600 rpm.
- the number of rotations per night can be appropriately selected according to the thickness of the flow path and the like.
- the substrate is preferably used with its upper surface covered with a cover.
- the lid can be formed of the same material and the same size as the substrate in accordance with the substrate.
- the lid can be formed of a plastic material such as PDMS with a diameter of about 30 mm and a thickness of about 3 mm, as with the substrate.
- the rotatable substrate has a reservoir, a moving channel, a concentration / sedimentation unit, a quantification unit, and other necessary functional units on its upper surface.
- These functional parts can be advantageously machined using techniques commonly used for machining plastic parts, such as etching and cutting.
- a solid-liquid mixture reservoir (reservoir chamber) is formed in the approximate center. Further, in the lid used in combination with the substrate, an injection port for the solid-liquid mixture is provided at a position corresponding to the storage portion in order to inject the solid-liquid mixture into the storage portion.
- the solid-liquid mixture reservoir is provided with a moving channel to move the solid-liquid mixture injected into the solid-liquid mixture to the concentration precipitation section (concentration precipitation chamber) by centrifugal force.
- This moving flow path led out from the storage part is developed in the centrifugal direction at an inclination angle from the storage part in order to obtain a centrifugal force for guiding the solid-liquid mixture.
- the moving flow path can preferably be adjusted in inclination angle and cross-sectional area according to the moving speed of the solid-liquid mixture.
- the moving flow path of the solid-liquid mixture is connected to the concentration sedimentation section (concentration sedimentation chamber) in order to concentrate the solid components in the solid-liquid mixture by centrifugal force.
- the concentration precipitation portion is installed on the centrifugal side of the moving flow path.
- the concentrated sedimentation part can be formed in various forms, but it is preferably formed in the form of a convex chamber and installed on the centrifugal side with respect to the moving flow path through which the solid-liquid mixture moves.
- a plurality of concentrated precipitation sections are arranged side by side, and the solid component is successively concentrated and precipitated in each concentrated precipitation section while moving the solid-liquid mixture in the moving flow path.
- a quantification unit (quantitative chamber) having a specified volume is arranged at the subsequent stage of the concentration precipitation unit in order to quantify the liquid component separated from the solid component in the concentration precipitation unit.
- the quantification unit may have only a quantification function, but it is preferable to add an additional function in order to further enhance the function of the solid-liquid separation / measurement structure of the present invention.
- the quantification unit is preferably a quantification measurement unit incorporating a mechanism for continuously measuring the liquid component separated and quantified in the region.
- the quantitative measurement unit preferably further includes a reagent capable of reacting with the separated and quantified liquid component and other reagents.
- the reagent used here may be either a liquid or a solid.
- the liquid component can be injected into the quantification unit or the quantitative measurement unit by various methods, but it is advantageous to use centrifugal force as in other processing steps.
- the quantification unit or the quantitative measurement unit further has a mesial direction removal mechanism provided on the upper part thereof in order to assist the injection of the liquid component thereto. . This is because the injection of liquid components is facilitated as a result of venting.
- the solid-liquid separation / measurement structure of the present invention comprises a spiral distribution channel and a plurality of particle storage portions provided in the outer circumferential direction. It is preferable to have.
- the solid-liquid separation / measurement structure of the present invention may be configured to connect a plurality of solid component containing regions in the outer peripheral direction of the moving flow path of the solid-liquid mixture formed in a spiral shape.
- the solid-liquid separation / measurement structure of the present invention has a lawn structure in which solid-liquid separation is performed with a constant centrifugal force, but in addition to the solid-liquid separation function, other functions can be arbitrarily set.
- a configuration for performing liquid component analysis or a configuration for performing analysis of solid components may be added to any position of the solid-liquid separation or measurement structure.
- solid component analysis refers to, for example, when using blood as a solid-liquid mixture, analyzing the deformability of blood cells, blood clots, etc., or clogging blood cells obtained by centrifugation. It is possible to measure the elasticity of blood cells from the flow state by flowing through the flow channel.
- solid-liquid mixtures not only biological components such as blood, but also various solid-liquid mixtures such as waste liquids, foods, and pharmaceuticals can be similarly advantageously separated and measured.
- the solid-liquid separation / measurement structure according to the present invention is preferably small and compact. More preferably, the solid-liquid separation / measurement structure of the present invention can be formed in the form of a chip.
- a typical example of a solid-liquid separation / measurement structure having a chip form is a substrate having a mouth-and-mouth structure made of a rotatable disk, and a blood injecting portion disposed substantially at the center of the substrate. And a spiral distribution channel connected to the blood injection part, and a device for separating and storing blood cells in the outer peripheral direction of the distribution channel.
- a plurality of blood cell storage units, and a reagent reaction unit that quantitatively stores blood components remaining without being stored in the blood cell storage unit and reacts with an internal reagent to cause color development. This is a blood component analysis chip.
- the present invention further relates to a solid-liquid separation / measurement method using the solid-liquid separation / measurement structure as described above.
- the method of the present invention can be advantageously carried out in various ways, but preferably,
- the step of moving the solid-liquid mixture by centrifugal force includes, for example, solid-liquid separation, from the inlet of the solid-liquid mixture placed near the center of the measurement structure, The solid-liquid mixture is moved by centrifugal force to a moving channel installed in the centrifugal direction at an inclination angle according to the purpose.
- the step of concentrating and precipitating the solid component in the solid-liquid mixture by centrifugal force is, for example, installing a convex chamber on the centrifugal side of the moving flow path and concentrating and precipitating the solid component by centrifugal force.
- the process of moving the liquid component separated in the concentration sedimentation section while controlling it with centrifugal force is, for example, changing the inclination angle of the moving channel in the centrifugal direction or the cross-sectional area of the moving channel. This is to move the liquid component while controlling the moving speed of the solid-liquid mixture.
- the process of injecting the transferred liquid component into a room of a specified volume and further quantifying it includes, for example, centrifugal force applied to a room of a specified volume in which the liquid component separated from the solid component is installed in the centrifugal direction. It is to quantitate after pouring into a full structure and making it a crushed structure.
- the air in order to inject the liquid component into the quantification part which is preferably a quantitative reaction chamber.
- This air bleed process is, for example, close to the upper part of the quantification part.
- the air is vented by using the air venting mechanism provided toward the center.
- a reagent is preferably injected in advance into a quantification unit which is preferably a quantification reaction chamber.
- the reaction level is measured by reacting with the injected liquid component (plasma component).
- FIG. 1A and 1B show one embodiment of a solid-liquid separation / measurement structure according to the present invention.
- the figure shows a continuous structure in which the solid-liquid mixture dropped near the center is concentrated and precipitated while sequentially moving in the centrifugal direction, and only the liquid component is injected into the quantitative reaction chamber for reaction and measurement.
- description will be made with reference to an example using blood as a solid-liquid mixture.
- FIG. 1A shows a rotor substrate constituting the solid-liquid separation / measurement structure of the present invention.
- Fig. IB shows the lid 2 that is used on the low substrate 1.
- Each of the low substrate 1 and the lid 2 is made of a plastic material such as PDMS, polystyrene, PMMA, or polyacryl, for example, and the overall size is about 3 O mm in diameter and about 3 mm in thickness.
- the low substrate 1 and the lid 2 are connected to the reservoir 1 1 of the low substrate 1 and the inlet 2 for the solid-liquid mixture of the lid 2 8 and the degassing of the quantitative reaction chamber 2 3 and the lid 2 of the rotor substrate 1
- the connection ports 2 and 5 are bonded with an adhesive so that they overlap and communicate with each other.
- the reservoir 1 1 is
- the storage unit 1 1 communicates with the first annular channel 1 2, but the first annular channel 1 2 controls the first liquid channel from the storage unit 1 1 while controlling the moving speed. It is for moving to the solid component concentration sedimentation section 13.
- the first solid component concentration / precipitation section 13 is the first concentration precipitation section of the solid component concentration / precipitation section installed in multiple stages (three stages in the illustrated example).
- the solid component concentration sedimentation section 13 is preferably provided with a step so that blood cells once accommodated do not return to the flow path, and are deeper than the annular flow path.
- the first annular channel 12 is connected to a first connection channel 14 that connects the first annular channel 12 and the second annular channel 15.
- the second annular channel 15 moves the liquid component separated from the solid component to the quantitative / reaction / measurement channel while controlling the speed.
- the second annular flow path 15 has a second solid component concentration and precipitation section 16 in the outer peripheral direction thereof.
- the second solid component concentration and precipitation section 16 shows the second stage concentration and precipitation section of the solid component concentration and precipitation sections installed in multiple stages.
- the second annular channel 15 is connected to a second connection channel 17 that connects the second annular channel 15 and the third annular channel 1 8.
- the third annular flow path 18 moves the solid-liquid mixture while controlling the moving speed.
- the third annular flow path 18 has a third solid component concentration and precipitation part 19 in the outer circumferential direction.
- the third solid component concentration and precipitation section 19 shows the third stage concentration and precipitation section of the solid component concentration and precipitation sections installed in multiple stages.
- the third annular flow path 18 is connected to the distribution flow path 2 1 through the third connection flow path 20.
- the distribution flow path 21 is connected to a supply flow path 2 2 formed to protrude in the outer circumferential direction.
- the supply flow path 2 2 is for injecting a liquid component into the quantitative reaction chamber 2 3, and the quantitative reaction chamber 2 3 is a small chamber having the functions of quantification, reaction and measurement.
- a test solid or liquid reagent is sealed in advance, and it can be dissolved by plasma to cause a color reaction.
- the upper and lower portions of the quantitative reaction chamber 23, and if necessary, the side surfaces are preferably formed of a translucent member.
- FIG. 6A the operation of the solid-liquid separation and measurement structure shown in Fig. 1A is shown in Fig. 6A, Fig. This will be described in detail with reference to FIG. 6B, FIG. 7A and FIG. 7B.
- the low evening is rotated at a speed of about several thousand rpm.
- the blood B 1 starts to flow through the first annular flow path 12 due to the centrifugal force generated by the low rotation, and then flows into the first solid component concentration and precipitation section 1 3 one after another.
- blood B 1 that has flowed into the solid-concentrated concentration sedimentation section 13 is further accumulated in the outer circumferential direction by the centrifugal force caused by the evening rotation. Go.
- the blood cell B 2 accumulates in the outer peripheral direction of the solid component concentration sedimentation part 1 3 in the order of the inflow of blood B 1, so that as shown in Fig. 6 B, the dish ball B 2 is stored in the storage part 11 side. Therefore, the solid component concentration and precipitation part 1 3 is sufficiently filled from the inside, and therefore, the liquid B 3 (blood cell B 2 gradually decreases) is pushed out in the direction of the blood flow in order. .
- the blood B 3 flows from the first annular flow path 12 through the first connection flow path 14 to the second annular flow path 15, so that the first solid-concentration-concentrating sedimentation section 1 described above is obtained.
- the specific gravity of the blood cell B 2 force is sequentially accumulated in the outer circumferential direction of the second solid component concentration sedimentation part 16.
- blood B 3 flows from the second annular channel 15 through the second connection channel 17 to the third annular channel 18.
- the blood B 3 flowing through the third annular channel 1 8 is only the plasma B 4 because the blood cells B 2 contained therein are gradually accumulated in the third solid component concentration sedimentation section 19. Therefore, the liquid that exits the third annular flow path 18 and finally flows through the third connection flow path 20 is plasma B 4.
- Plasma B 4 that has reached the distribution channel 2 1 via the third connection channel 20 is As shown in 7A, the supply flow path 22 is sequentially supplied and filled, and finally reaches the discharge section 24.
- the discharge part 2 4 may be provided with a waste liquid storage part in addition to the external container, and the plasma B 4 that has passed through the distribution channel 2 1 is shown in FIG.
- the reaction quantification chamber 23 is supplied to each reaction channel 22.
- the reagent that can react with plasma and exhibit a color development reaction is already stored in the reaction quantification chamber 23, the plasma B 5 in the reaction quantification chamber 23 and the reagent undergo a color reaction, and externally.
- the absorbance can be measured using optical means (not shown).
- FIG. 2 shows one example of the present invention as described above, and shows a mechanism in which a solid component (blood cell) is concentrated and precipitated from a solid-liquid mixture, that is, a fluid (blood). This shows more specifically the step of successive concentration and precipitation.
- FIG. 2 is an enlarged view of a portion including the first annular flow path 12 and the first solid component concentration and precipitation section 1 3 in the first stage of FIG. 1A.
- the solid particles (blood cells) in the fluid (blood) are finally accumulated by the arrangement of a large number of solid component concentration sedimentation sections 13, and the fluid does not contain particles (for example, Plasma, serum) are separated.
- the solid component concentration / precipitation section 13 shown in the figure consists of a convex chamber, but it does not have to be square as shown, and may be any shape as long as it is convex.
- the solid component concentration sedimentation section 13 may be an oval or circular room.
- FIG. 3 showing a structure diagram of the movement / separation of the solid-liquid mixture in which the volume of the solid component concentrated sedimentation part is adjusted according to the blood volume.
- FIG. 3 shows the path of blood movement from the second annular channel 15 to the third annular channel 18, and the reference numbers in the figure correspond to the reference numbers in FIG. 1A, respectively.
- the second connecting channel 17 connecting the second annular channel 15 and the third annular channel 18 is a plasma depending on the inclination angle and the cross-sectional area of the channel installed in the centrifugal direction. It is possible to control the moving speed to the third annular flow path 18 for blood that is close to.
- the third annular flow path 18 further separates the unseparated solid component by further concentration and precipitation.
- the third solid component concentration sedimentation section 19 has a volume according to the direction of blood travel. Is configured to be small. This is because the present example has a configuration in which a plurality of solid component concentration sedimentation sections that store blood cells are arranged and sequentially store blood cells, so in the last so-called third annular channel 18, the number of blood cells This is because, if the solid component concentration sedimentation section 19 is large, the remaining plasma may increase and waste may occur.
- the third annular channel 18 having the third solid component concentration and precipitation portion 19 preferably includes a plurality of stages of solid component concentration and precipitation portions whose volume is adjusted according to the blood volume.
- This example is for explaining the mechanism of air removal (degassing) in a reaction quantification chamber in which a reagent reaction is performed.
- this example will be described with reference to FIG. 4 and FIG.
- Fig. 4 shows a structure in which the separated liquid component is poured into the quantitative reaction chamber by centrifugal force and vented at the same time, and has almost the same configuration as the lid 2 shown in Fig. 1B as a whole.
- Figure 5 shows the line segment X—X in Figure 4.
- the distribution channel 21 has a channel structure connected to the liquid component quantification / measurement channel.
- Distribution channel 21 shows a structure in which the moving speed of the liquid component to supply channel 22 for quantification and measurement is controlled by adjusting the inclination angle and the size of the cross-sectional area.
- the supply flow path 2 2 for quantifying and measuring liquid components is configured so that liquid components are sequentially injected into the quantitative reaction chamber 2 3 by centrifugal force. Has a structure.
- the quantitative reaction chamber 2 3 has a degassing connection port 2 5.
- the connection port 25 for removal, the removal P 2 7 for extracting the air from the quantitative reaction chamber 23, and the connection flow path 26 have a communication relationship as shown in the figure.
- the deaeration port 2 7 is installed in the mesial direction.
- the lid 2 has a solid-liquid mixture inlet 28 that penetrates the front and back.
- the inlet 28 is configured to coincide with the reservoir 11 when the lid 2 is attached to the substrate 1 shown in FIG. 1A.
- the mouth provided with these flow paths is composed of a combination of the lid 2 shown in FIG. 1B and the substrate 1 shown in FIG. 1A.
- the substrate 1 is connected to the first substrate 11 and the first substrate as shown in the figure. It is formed from a joined body of 2 substrates 1 2.
- the liquid component can be quantified and measured continuously without stopping the centrifugal operation.
- the air bleed structure functions at the same time, so that the quantitative reaction chamber becomes full and the air passage is The amount of liquid component is determined by the opening position and can be balanced
- the solid-liquid separation / measurement structure and solid-liquid separation / measurement method of the present invention separates the solid component from the liquid component by simply dropping the solid-liquid mixture onto the solid-liquid separation / measurement structure and centrifuging, and quantifies Reaction and measurement can be performed simultaneously.
- the solid / liquid mixture is blood
- drop a small amount of blood It is possible to carry out blood biochemical and immunological tests, cancer diagnosis and infectious disease diagnosis in a continuous operation, for emergency testing, bedside testing, home testing, etc. Is suitable.
- the structure and method of the present invention that can be used simply, at high speed and at low cost, therefore have great industrial applicability.
Abstract
Description
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JP2010071857A (ja) * | 2008-09-19 | 2010-04-02 | Sekisui Chem Co Ltd | 血漿分離装置 |
CN102175840A (zh) * | 2010-12-30 | 2011-09-07 | 北京大学 | 全血离心分离芯片及其制备方法 |
JP2015503100A (ja) * | 2011-12-08 | 2015-01-29 | バイオサーフィット、 ソシエダッド アノニマ | 逐次分注および沈降速度の指標の決定 |
KR101742278B1 (ko) | 2015-12-24 | 2017-05-31 | 금호타이어 주식회사 | 실란트 용액 흐름성 평가 장치 |
EP2252898A4 (en) * | 2008-03-04 | 2017-10-18 | University of Utah Research Foundation | Microfluidic flow cell |
CN108469367A (zh) * | 2018-05-11 | 2018-08-31 | 石家庄禾柏生物技术股份有限公司 | 一种离心式血浆分离光盘 |
CN108562755A (zh) * | 2018-05-11 | 2018-09-21 | 石家庄禾柏生物技术股份有限公司 | 一种直接用于光学检测的试剂盘测试装置 |
CN108828247A (zh) * | 2018-05-11 | 2018-11-16 | 石家庄禾柏生物技术股份有限公司 | 一种同时进行多种诊断的试剂盘测试装置 |
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JP5565398B2 (ja) * | 2011-09-30 | 2014-08-06 | ブラザー工業株式会社 | 検査対象受体 |
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Cited By (12)
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EP2252898A4 (en) * | 2008-03-04 | 2017-10-18 | University of Utah Research Foundation | Microfluidic flow cell |
JP2009270922A (ja) * | 2008-05-07 | 2009-11-19 | Seiko Epson Corp | 生体試料反応方法 |
JP2010071857A (ja) * | 2008-09-19 | 2010-04-02 | Sekisui Chem Co Ltd | 血漿分離装置 |
CN102175840A (zh) * | 2010-12-30 | 2011-09-07 | 北京大学 | 全血离心分离芯片及其制备方法 |
JP2015503100A (ja) * | 2011-12-08 | 2015-01-29 | バイオサーフィット、 ソシエダッド アノニマ | 逐次分注および沈降速度の指標の決定 |
US9933348B2 (en) | 2011-12-08 | 2018-04-03 | Biosurfit, S.A. | Sequential aliqoting and determination of an indicator of sedimentation rate |
KR101742278B1 (ko) | 2015-12-24 | 2017-05-31 | 금호타이어 주식회사 | 실란트 용액 흐름성 평가 장치 |
CN108469367A (zh) * | 2018-05-11 | 2018-08-31 | 石家庄禾柏生物技术股份有限公司 | 一种离心式血浆分离光盘 |
CN108562755A (zh) * | 2018-05-11 | 2018-09-21 | 石家庄禾柏生物技术股份有限公司 | 一种直接用于光学检测的试剂盘测试装置 |
CN108828247A (zh) * | 2018-05-11 | 2018-11-16 | 石家庄禾柏生物技术股份有限公司 | 一种同时进行多种诊断的试剂盘测试装置 |
CN108562755B (zh) * | 2018-05-11 | 2024-03-19 | 石家庄禾柏生物技术股份有限公司 | 一种直接用于光学检测的试剂盘测试装置 |
CN108828247B (zh) * | 2018-05-11 | 2024-03-26 | 石家庄禾柏生物技术股份有限公司 | 一种同时进行多种诊断的试剂盘测试装置 |
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JPWO2006038682A1 (ja) | 2008-05-15 |
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