WO2024069936A1 - 流体処理カートリッジ並びに核酸の回収及び増幅方法 - Google Patents
流体処理カートリッジ並びに核酸の回収及び増幅方法 Download PDFInfo
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- WO2024069936A1 WO2024069936A1 PCT/JP2022/036721 JP2022036721W WO2024069936A1 WO 2024069936 A1 WO2024069936 A1 WO 2024069936A1 JP 2022036721 W JP2022036721 W JP 2022036721W WO 2024069936 A1 WO2024069936 A1 WO 2024069936A1
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- rotor
- flow path
- cylinder
- switching means
- cartridge
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502738—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by integrated valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
- B01L2200/0621—Control of the sequence of chambers filled or emptied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/16—Reagents, handling or storing thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/04—Closures and closing means
- B01L2300/046—Function or devices integrated in the closure
- B01L2300/048—Function or devices integrated in the closure enabling gas exchange, e.g. vents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/0864—Configuration of multiple channels and/or chambers in a single devices comprising only one inlet and multiple receiving wells, e.g. for separation, splitting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/06—Valves, specific forms thereof
- B01L2400/0633—Valves, specific forms thereof with moving parts
- B01L2400/0644—Valves, specific forms thereof with moving parts rotary valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/06—Valves, specific forms thereof
- B01L2400/0633—Valves, specific forms thereof with moving parts
- B01L2400/065—Valves, specific forms thereof with moving parts sliding valves
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- 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
Definitions
- the present invention relates to a fluid processing cartridge and a method for recovering and amplifying nucleic acid. More specifically, the present invention relates to a fluid processing cartridge suitable for recovering, amplifying, and detecting nucleic acid from a sample, and a method for recovering and amplifying nucleic acid using this cartridge.
- Patent Document 1 discloses a small, portable amplification and detection device that makes it easier to amplify and detect nucleic acids.
- Patent Document 1 International Publication No. 2018/123837
- Patent Document 2 International Publication No. 2002/023776 The entire disclosures of Patent Documents 1 and 2 are expressly incorporated herein by reference.
- the device described in Patent Document 1 is a device that separately collects nucleic acid from a specimen, and then amplifies and detects the collected nucleic acid.
- the inventors have come up with a plan to use the sample as is without pretreatment, and to recover nucleic acid from the sample, amplify the recovered nucleic acid, and detect the amplified nucleic acid, all in one device.
- the nucleic acid recovery, amplification, and detection steps will be carried out automatically and sequentially in chambers connected by a microchannel, and it is envisioned that a carrier such as a filter will be used, taking into account the high efficiency of nucleic acid recovery.
- Patent Document 2 A device that uses a carrier to recover nucleic acids is known (Patent Document 2).
- the fluid transfer mechanism between chambers includes a cylinder whose interior is a fluid transfer chamber, and a piston that moves up and down inside the cylinder to reduce or pressurize the interior of the cylinder, and has a switchable flow path at the bottom of the fluid transfer chamber that connects to other chambers.
- Nucleic acids are recovered from samples while moving fluid between the fluid transfer chamber and other chambers by utilizing the reduced pressure or increased pressure inside the cylinder.
- the movement of liquid must be performed by the up and down movement of the piston, which has the problem of making the operating mechanism complicated, and it is not envisioned that the amplification and detection of the recovered nucleic acid will be performed within the same device.
- the problem that the present invention aims to solve is to provide a cartridge that allows the amplification and detection of recovered nucleic acids to be carried out within the same device, has an easy means of transporting liquid, and allows the device in which the cartridge is installed to be made more compact.
- a fluid processing cartridge having a plurality of liquid storage tanks, a flow path switching means, and a flow path between each of the liquid storage tanks and the flow path switching means, the flow passage switching means includes a rotor and a cylinder in which the rotor can slide while maintaining a close contact state between an outer peripheral surface and an inner peripheral surface of the rotor;
- the rotor has at least one groove on its outer circumferential surface, which allows a plurality of flow passages in the cylinder to be connected by the rotation or translation of the rotor, and/or the rotor has at least one through hole, which allows a plurality of flow passages in the cylinder to be connected by the rotation or translation of the rotor.
- the liquid receiving portion is funnel-shaped.
- the fluid processing cartridge further includes a waste liquid recovery tank connected to the flow path switching means via a flow path, and the waste liquid recovery tank has an exhaust port.
- [20] The cartridge according to any one of [1] to [19], which is for recovering, amplifying and/or detecting nucleic acid from a sample, and amplification of the nucleic acid is carried out in a reaction vessel.
- a method comprising recovering and amplifying a nucleic acid, using the cartridge according to any one of [1] to [20].
- [22] The method according to [21], wherein when nucleic acid amplification is carried out in a reaction chamber, the rotor and cylinder of the flow path switching means are in a position in which at least the reaction chamber is closed, or in a position in which all flow paths are disconnected.
- the method according to [21] or [22] further comprising a step of detecting the amplified nucleic acid optically, electrically, or by surface plasmon resonance after the nucleic acid amplification step.
- the present invention provides a cartridge that allows the amplification and detection of recovered nucleic acids to be carried out within the same device, has an easy means for transferring liquid, and allows the device in which the cartridge is mounted to be made more compact. By using this cartridge, the detection of the target nucleic acid can be carried out more reliably.
- FIG. 1 is a schematic diagram showing an example of a fluid treatment cartridge of the present invention.
- FIG. 2 is a schematic horizontal cross-sectional view of a flow path switching means included in an example of the fluid treatment cartridge of the present invention.
- FIG. 3 is a schematic vertical sectional view of a flow path switching means included in an example of the fluid treatment cartridge of the present invention.
- FIG. 4 is a schematic vertical sectional view of a cylinder and a rotor of an example of a fluid treatment cartridge of the present invention.
- FIG. 5 is a schematic horizontal sectional view of a flow path switching means included in an example of the fluid treatment cartridge of the present invention.
- FIG. 6 is a schematic horizontal sectional view of a flow path switching means included in an example of the fluid treatment cartridge of the present invention.
- FIG. 7 is a schematic horizontal sectional view of a flow path switching means included in an example of the fluid treatment cartridge of the present invention.
- FIG. 8 is a schematic vertical sectional view of a cylinder and a rotor of an example of a fluid treatment cartridge of the present invention.
- FIG. 9-1 is a schematic vertical sectional view of a cylinder and a rotor of an example of a fluid treatment cartridge of the present invention.
- FIG. 9-2 is a schematic vertical sectional view of a cylinder and a rotor of an example of a fluid treatment cartridge of the present invention.
- the present invention relates to a fluid treatment cartridge, the cartridge having a plurality of liquid storage tanks, a flow path switching means, and flow paths between each of the liquid storage tanks and the flow path switching means.
- the flow path switching means includes a rotor and a cylinder in which the rotor can slide while maintaining a tight contact between the outer peripheral surface and the inner peripheral surface of the rotor.
- the rotor can have at least one groove on the outer peripheral surface that can connect the plurality of flow path openings of the cylinder by rotation or translation of the rotor.
- the rotor can have at least one through hole that can connect the plurality of flow path openings of the cylinder by rotation or translation of the rotor.
- Figure 1 is a schematic diagram of an example of a fluid treatment cartridge of the present invention.
- 10 is a flow path switching means
- 20 to 25 are liquid storage tanks
- 50 to 57 are flow paths between each liquid storage tank and the flow path switching means.
- 58 and 59 are flow paths between the waste liquid collection tank and the flow path switching means
- 60 is a flow path between the reaction tank and the flow path switching means.
- six liquid storage tanks 20 to 25 are shown as an example, but the number of liquid storage tanks is not particularly limited as long as it is two or more, and may be 2, 3, 4, 5, 6, 7, 8, 9, 10 or more.
- 50 to 60 flow paths are shown, but the number of flow paths can be appropriately selected depending on the number of liquid storage tanks, waste liquid collection tanks, and reaction tanks.
- multiple liquid storage tanks, flow paths, and cylinders can be integrated, and the rotor can be inserted from the cylinder opening side.
- the opening of the cylinder is located at the bottom of the cartridge (the longitudinal lower surface of the flow path switching means 10). The arrangement of the rotor and cylinder will be described later.
- the flow path switching means 10 includes a rotor and a cylinder in which the rotor can slide while maintaining a tight contact between the rotor's outer peripheral surface and inner peripheral surface.
- the rotor and cylinder can slide between each other, meaning that the rotor can rotate in the cylinder and/or that the rotor can move parallel to each other in the cylinder.
- the flow path switching means consisting of the rotor and cylinder has a vertically elongated cylindrical shape, with the flow path connected to the side peripheral surface. In FIG. 1, both ends are arranged so that they are one above the other, but both ends can also be arranged horizontally or at various oblique angles.
- the rotor's outer diameter and the cylinder's inner diameter are approximately equal, and that the surfaces of the rotor's outer peripheral surface and the cylinder's inner peripheral surface are smooth enough to maintain a tight contact.
- various lubricants can be used between the rotor and cylinder to keep them in a tight contact state and to allow rotation and insertion/removal.
- the rotor can be a solid cylinder or have a cylindrical outer wall with an internal cavity.
- the rotor can have at least one groove on its outer circumferential surface that can connect the multiple flow path openings of the cylinder depending on the rotational position of the rotor.
- the groove can be provided in a horizontal or vertical direction. It can also be provided with an incline, but considering the operability of the flow path switching means 10, it is preferable to provide the groove in a horizontal or vertical direction.
- the length and depth of the groove can be appropriately determined taking into account the spacing and dimensions of the multiple flow path openings of the cylinder.
- Figure 2 shows a schematic diagram of a horizontal cross section of a rotor and a cylinder with a cylindrical outer wall having a cavity inside.
- a groove is provided horizontally on the outer circumferential surface of the rotor.
- flow path 1 and flow path 2 are connected at both ends of groove A.
- Figure B the rotor is rotated and both ends of groove A are not connected to the openings of flow path 1 and flow path 2, and the connection between flow path 1 and flow path 2 is closed.
- groove A can be used to circulate liquid or gas between flow path 1 and flow path 2.
- the connection between flow path 1 and flow path 2 is closed, and liquid or gas cannot be circulated using groove A. Note that to break the connection between the two flow paths, the groove only needs to be out of contact with at least one of the two flow paths.
- Figure 3 shows a schematic diagram of a vertical cross section of a rotor and a cylinder.
- An example is shown in which grooves are provided vertically on the outer circumferential surface of the rotor.
- flow paths 3 and 4 are connected at both ends of groove B.
- the rotor is rotated and both ends of groove B are disconnected from the openings of flow paths 3 and 4, and the connection between flow paths 3 and 4 is closed.
- groove B can be used to circulate liquid or gas between flow paths 3 and 4.
- the connection between flow paths 3 and 4 is closed, and liquid or gas cannot circulate using groove B.
- FIG. 4 shows a schematic diagram of a vertical cross section of a rotor and a cylinder.
- the rotor shown in FIG. 4 has a cylindrical outer wall with a cavity inside, and is cylindrical, with both ends open. Inside the cylinder, the rotor has an internal space from each opening at the internal end and external end of the cylinder.
- the internal space of the rotor can be a simple space as shown in FIG. 3, or can have an internal structure separating the two internal spaces as shown in FIG. 4.
- the internal end of the cylinder can be closed as shown in FIG. 3, or can have a nozzle extending from the internal side of the cylinder into the rotor internal space as shown in FIG. 4, with everything except the nozzle (and, if necessary, the rotor insertion port) being closed.
- FIG. 4A The tip of the nozzle is open, and the nozzle is connected to the flow path 10 in the cylinder.
- the flow path 3 is connected to the nozzle via the groove B and the flow path 10 in the cylinder.
- FIG. 4B shows the rotor rotated to another position, with the groove B disconnected from the flow path 3 and the flow path 10 in the cylinder.
- the fluid processing cartridge of the present invention can have a carrier in the flow path switching means or in the middle of the flow path between the liquid storage tank and the flow path switching means.
- the carrier in the flow path switching cartridge can form the internal structure inside the rotor, and the tip of the nozzle extending from the cylinder can be located near the opposing surface of the carrier.
- Any carrier can be used as long as it can trap nucleic acid in a specimen and elute the trapped nucleic acid.
- the carrier can be, for example, a glass filter, affinity resin such as a normal phase column or a reverse phase column, gel filtration resin, etc. However, it is not intended to be limited to these.
- the internal structure in the rotor may include a liquid receiving portion on the outside of the cylinder. There may be a space between the carrier constituting the internal structure and the liquid receiving portion.
- the liquid receiving portion may have a groove that is a drainage path that can connect the liquid receiving portion to the outside of the rotor.
- the liquid receiving portion may be funnel-shaped. In view A of FIG. 4, the liquid receiving portion is connected to the groove and groove C, and groove C is connected to flow path 4. View B shows the rotor rotated to another position, with groove C disconnected from flow path 4 and the groove in the cylinder.
- Figure 5 shows a horizontal cross-sectional schematic diagram of an example of a flow path switching means.
- Figure C shows the groove downstream of the liquid receiving section, the through hole A, and the flow path 4, all in communication with each other.
- Figure 5C shows the state in which the groove, through hole A, vertical groove C, and flow path 4 shown in Figure 4 are connected.
- Figure 5D shows the state in which the rotor is rotated and the opening of the flow path 4 in the cylinder and the through hole A in the rotor are misaligned, cutting off the connection between the flow path 4 and the groove.
- Figures 6 to 10 show schematic horizontal and vertical cross-sectional views of an example of a flow path switching means in which the rotor is a solid cylinder.
- Figure 6 shows a through hole B that crosses the rotor, which is a solid cylinder, and flow paths 20 and 21 that can connect to through hole B by rotating.
- through hole B is connected to flow paths 20 and 21, and in Figure B, the rotor has rotated from the state shown in Figure A, and through hole B is no longer connected to flow paths 20 and 21.
- Figure 7 shows through-hole C, which branches off and crosses the rotor, which is a solid cylinder, groove D at one end of through-hole C, and flow paths 22-24 that can connect to through-hole C or groove D.
- flow path 22 and groove D are connected, and through-hole C is connected to flow path 23.
- the rotor rotates from the state shown in Figure A, and flow path 22 and groove D maintain communication, and through-hole C is connected to flow path 24.
- the rotor rotates from the state shown in Figure B, and through-hole C is not connected to any of flow paths 22-24.
- Figures 8 to 9-2 show examples of parallel translation of the rotor inside a cylinder.
- Figure 8 shows a through hole D that cuts through the rotor, which is a solid cylinder, and flow paths 25 and 26 that can connect to through hole D as the rotor translates parallel (linear motion).
- through hole D is connected to flow paths 25 and 26, while in Figure B, the rotor has translated from the state shown in Figure A, and through hole D is not connected to flow paths 25 and 26.
- Figure 9-1 shows through hole E that branches off and crosses the rotor, which is a solid cylinder, a groove E at one end of through hole E, and flow paths 27-29 that can connect to through hole E or groove E.
- through hole E is not connected to any of flow paths 27-29.
- the rotor has moved parallel from the state of Figure A, so that flow path 27 is connected to groove E and through hole E is connected to flow path 28.
- the rotor has moved further parallel from the state of Figure B, so that the connection between flow path 27 and groove E is maintained and through hole E is connected to flow path 29.
- Figure 9-2 is an example similar to Figure 9-1, and in Figure D, the rotor has moved further parallel from the state of Figure C in Figure 9-1, so that flow path 28 and flow path 29 are connected via groove E.
- Figure E shows another embodiment of Figure D, in which the rotor rotates from the state shown in Figure C of Figure 9-1, for example, and groove F connects flow paths 28 and 29.
- the fluid processing cartridge of the present invention determines the flow paths to be connected by rotating or translating the rotor to change the positions of the grooves and through holes of the rotor and the openings of the flow paths of the cylinder shown in Figures 2 to 9-2, and by selecting the stop position, and then circulates liquid between multiple liquid storage tanks to proceed with the desired processing.
- the rotation or translation of the rotor can be performed by operating the rotor from the outside of the cylinder.
- the fluid treatment cartridge of the present invention may further have a waste liquid collection tank connected to the flow path switching means via a flow path, and may have an exhaust port in the waste liquid collection tank.
- the waste liquid collection tank is indicated by 30, and has an exhaust port 31 in the waste liquid collection tank 30.
- the waste liquid collection tank 30 is connected to the flow path switching means 10 via a flow path 59.
- the exhaust port 31 is connected to an exhaust cartridge, for example, a suction pump, provided outside the fluid treatment cartridge, and can make the waste liquid collection tank 30 negative pressure, and further make the liquid storage tank connected to the fluid treatment cartridge 10 via the waste liquid collection tank 30 and the flow path 59 and the reaction tank described below negative pressure, and can guide liquid or gas to the waste liquid collection tank 30.
- the cartridge of the present invention transfers liquid and gas by utilizing the negative pressure caused by exhaust from an exhaust port provided in the waste liquid collection tank 30.
- the cartridge is positioned so that the exhaust port is located above the waste liquid tank inlet in the waste liquid collection tank. This is to prevent liquid from leaking from the exhaust port.
- the fluid processing cartridge of the present invention may further include a reaction tank 40 connected to the flow path switching means via a flow path.
- the reaction tank is used to store a liquid containing nucleic acid that has been processed by the cartridge of the present invention, and to amplify the nucleic acid and detect the amplified nucleic acid.
- any one or all of the liquid storage tanks 20 to 25 and the reaction tank 40 have an air hole or an air passage leading to the air hole, although not shown.
- a liquid storage tank having an air hole or an air passage leading to the air hole can be easily guided to the waste liquid collection tank 30 by connecting the waste liquid collection tank 30 and the flow path switching means 10 via a flow path 59, while creating a negative pressure in the tank.
- a reaction tank 40 having an air hole or an air passage leading to the air hole can be easily guided to the reaction tank 40 by connecting the waste liquid collection tank 30 and the flow path switching means 10 via a flow path 59, while creating a negative pressure in the tank.
- the reaction tank 40 can have an exhaust port similar to the exhaust port provided in the waste liquid collection tank 30, although not shown. Fluids and/or gases may be transferred to the reaction tank 40 by exhausting air from this exhaust port to create a negative pressure inside the reaction tank 40.
- the fluid treatment cartridge of the present invention has grooves and through-holes in a number that corresponds to the number of liquid storage tanks and the presence or absence of a waste liquid collection tank or carrier.
- the cartridge of this embodiment has a plurality of liquid storage tanks, including one specimen suspension tank, two cleaning liquid tanks, one elution liquid tank, one reaction liquid tank, and one mixing tank, as well as one waste liquid tank and one reaction tank.
- Step 1 (supporting step) Liquid: specimen suspension tank ⁇ flow path switching means (nozzle ⁇ filter) ⁇ waste tank Gas: vent hole of specimen suspension tank ⁇ specimen suspension tank
- the rotor of the flow path switching means is in a position where the flow path from the specimen suspension tank communicates with the flow path in the cylinder (corresponding to flow path 10 in FIG. 4) and the nozzle via the groove of the flow path switching means.
- This flow path connection is the arrangement from flow path 3 in FIG. 4A to the nozzle.
- this flow path connection which is in a position where the through hole communicating with the waste tank from below the liquid receiving part communicates with the flow path via the groove, corresponds to the arrangement in FIG. 4A and FIG. 5C.
- the inside of the waste tank is under negative pressure, and the liquid flows from the specimen suspension tank through the flow path into the flow path switching means, passes through the filter in the flow path switching means, and reaches the waste tank under negative pressure via the flow path between the flow path switching means and the waste tank. If the liquid from the specimen suspension tank contains nucleic acid, the nucleic acid is trapped in the filter.
- Step 2 cleaning step
- Liquid cleaning liquid tank ⁇ flow path switching means (nozzle ⁇ filter) ⁇ waste liquid tank
- Gas cleaning liquid tank vent ⁇ cleaning liquid tank
- the rotor of the flow path switching means rotates, and the flow path from the cleaning liquid tank is in a position where it communicates with the flow path in the cylinder (corresponding to flow path 10 in FIG. 4) and the nozzle via the groove of the flow path switching means, and also in a position where it communicates with the through hole that communicates with the waste liquid tank from below the liquid receiving part.
- the flow path that connects to the groove of the flow path switching means is a flow path from the cleaning liquid tank
- the height of the flow path and the groove or the position on the outer periphery are different from those in step 1 (in step 1, the flow path that connects to the groove of the flow path switching means is a flow path from the specimen suspension tank), but it is the same as the arrangement shown in FIG. 4A and FIG. 5C.
- the cleaning liquid in the cleaning liquid tank flows from the cleaning liquid tank through the flow path into the nozzle in the flow path switching means, passes through the nozzle and the filter, and reaches the waste liquid tank in a negative pressure state via the flow path between the lower part of the liquid receiving part and the waste liquid tank.
- the cleaning liquid from the cleaning liquid tank washes the filter.
- Step 3 (drying step) Gas: cleaning liquid tank vent hole ⁇ flow path switching means (nozzle ⁇ filter) ⁇ waste liquid tank After one or two cleaning steps are completed, the position of the flow path switching means is returned to the same position as in step 2, and outside air is taken in through the cleaning liquid tank vent hole, which passes through the filter in the flow path switching means and reaches the waste liquid tank under negative pressure. This dries the filter.
- Step 4 (Elution Step) Liquid: eluent tank ⁇ flow path switching means (nozzle ⁇ filter) ⁇ mixing tank Gas: mixing tank ⁇ flow path switching means ⁇ waste tank
- the rotor of the flow path switching means rotates, and the flow path from the eluent tank is in a position where it communicates with the flow path in the cylinder (corresponding to the flow path 10 in FIG. 4) and the upper part of the nozzle via the groove of the flow path switching means, and the opening from the lower part of the liquid receiving part is in a position where it communicates with the through hole communicating with the mixing tank.
- This flow path connection is the embodiment shown in FIG. 4A and FIG.
- the gas also flows from the mixing tank to the waste tank via the flow path switching means.
- the flow path from the mixing tank is in a position where it communicates with the groove of the rotor, and the groove is in a position where it communicates with the flow path communicating with the waste tank.
- This flow path connection corresponds to the state shown in FIG. 2A.
- the eluent in the eluent tank flows from the eluent tank through the flow path into the nozzle, passes through the filter, and reaches the mixing tank.
- the eluent from the eluent tank elutes and washes the nucleic acid trapped in the filter.
- gas is sucked from the mixing tank via the flow path switching means into a waste tank under negative pressure.
- Step 5 (reaction solution supply step) Liquid: reaction liquid tank ⁇ flow path switching means ⁇ mixing tank Gas: mixing tank ⁇ flow path switching means ⁇ waste liquid tank
- step 5 the rotor of the flow path switching means rotates, and the flow path from the reaction liquid tank is in a position where it communicates with the groove of the flow path switching means, and the groove of the flow path switching means is in a position where it communicates with the flow path to the mixing tank.
- This flow path connection corresponds to the state shown in FIG. 2A.
- this positioning is a position where the flow path from the mixing tank, which becomes the gas flow path, communicates with the groove of the flow path switching means, and also a positioning where the groove of the flow path switching means communicates with the flow path that connects to the waste liquid tank.
- This flow path connection also corresponds to the state shown in FIG. 2A.
- Step 6 (Reactor Filling Step) Liquid: mixing tank ⁇ flow path switching means ⁇ reaction tank Gas: reaction tank ⁇ flow path switching means ⁇ waste liquid tank
- the rotor of the flow path switching means rotates, and the flow path from the mixing tank is in a position where it communicates with the groove of the flow path switching means, and the groove of the flow path switching means is in a position where it communicates with the flow path to the reaction tank.
- This flow path connection corresponds to the state shown in FIG. 2A.
- this positioning is a position where the flow path from the exhaust port of the reaction tank, which becomes the gas flow path, communicates with the groove of the flow path switching means, and also a positioning where the groove of the flow path switching means communicates with the flow path that connects to the waste liquid tank.
- This flow path connection corresponds to the state shown in FIG. 3A.
- the mixed reaction solution transferred to the reaction tank is then subjected to a process in which the nucleic acids in the solution are amplified.
- the flow path switching means can have a groove and through hole structure and position such that the rotor and cylinder are positioned such that at least the reaction vessel is closed, or all the flow paths are disconnected via the flow path switching means.
- the mixed reaction liquid is transferred to the reaction vessel, at least the reaction vessel can be closed, or all the flow paths can be disconnected via the flow path switching means.
- the liquid is then subjected to a process of amplifying nucleic acid. By closing at least the reaction vessel or disconnecting all the flow paths, nucleic acid amplification can be performed while avoiding contamination of the reaction vessel, and subsequent detection can also be performed.
- the cartridge of the present invention can be used for the recovery, amplification and/or detection of nucleic acids from a sample.
- the present invention includes a method for amplifying a target nucleic acid in a specimen using the above-described fluid treatment cartridge of the present invention, which method may also include detection of the amplified nucleic acid in the nucleic acid amplification.
- the nucleic acid to be amplified is not particularly limited, and can be, for example, RNA or DNA.
- the nucleic acid amplification reaction can be an isothermal amplification reaction or a thermocycling amplification reaction of nucleic acid.
- the isothermal amplification reaction can be, for example, the LAMP method or the SmartAmp method.
- the thermocycling amplification reaction can be a PCR amplification reaction.
- the nucleic acid amplification enzyme is not particularly limited, but may be, for example, an enzyme for isothermal amplification reaction of nucleic acid or an enzyme for thermocycle amplification reaction.
- the isothermal amplification reaction of nucleic acid may be, for example, the LAMP method or the SmartAmp method of nucleic acid, and may be an enzyme for amplification reaction of nucleic acid using a strand displacement reaction.
- the polymerase which is an enzyme for nucleic acid amplification reactions having strand displacement activity, can be any known enzyme.
- the polymerase described in WO 2004/040019 can be mentioned, but is not intended to be limited thereto.
- the polymerase having strand displacement activity can also be DNA polymerase (Aac), which is disclosed in WO 2009/054510 (Japanese Patent No. 4450867).
- any of those that are normal, mesophilic, or thermostable can be suitably used.
- this polymerase may be either a natural form or a mutant with an artificial mutation.
- Such a polymerase includes DNA polymerase.
- DNA polymerase includes mutants of DNA polymerase derived from thermophilic Bacillus bacteria such as Bacillus stearothermophilus (hereinafter referred to as "B.st”) and Bacillus caldotenax (hereinafter referred to as "B.ca”) that lack 5' ⁇ 3' exonuclease activity, and Klenow fragment of DNA polymerase I derived from Escherichia coli (E.
- DNA polymerases used in nucleic acid amplification reactions include Vent DNA polymerase, Vent (Exo-) DNA polymerase, DeepVent DNA polymerase, DeepVent (Exo-) DNA polymerase, ⁇ 29 phage DNA polymerase, MS-2 phage DNA polymerase, Z-Taq DNA polymerase, Pfu DNA polymerase, Pfu turbo DNA polymerase, KOD DNA polymerase, 9°Nm DNA polymerase, Therminator DNA polymerase, and Taq DNA polymerase.
- RNA When the nucleic acid to be amplified is RNA, a reverse transcriptase can be used in addition to the DNA polymerase, or a DNA polymerase that also has reverse transcription activity can be used as the DNA polymerase.
- the reverse transcriptase is not particularly limited as long as it has cDNA synthesis activity using RNA as a template, and examples of the reverse transcriptase include reverse transcriptases of various origins, such as avian myeloblastosis virus reverse transcriptase (AMVRTase), Rous-associated virus 2 reverse transcriptase (RAV-2RTase), and Moloney murine leukemia virus reverse transcriptase (MMLVRTase).
- AMVRTase avian myeloblastosis virus reverse transcriptase
- RAV-2RTase Rous-associated virus 2 reverse transcriptase
- MMLVRTase Moloney murine leukemia virus reverse transcriptase
- the primer is appropriately selected depending on the enzyme used for the nucleic acid amplification reaction.
- the enzyme for the nucleic acid amplification reaction is an enzyme for the nucleic acid amplification reaction using a strand displacement reaction
- examples of the primers include those described in International Publication No. 2004/040019, Japanese Patent Application Publication No. 2009-171935, Japanese Patent Application Publication No. 2011-50380, etc.
- the method of the present invention may further include a step in which, after the nucleic acid amplification operation, the amplified nucleic acid is optically detected, electrically detected, or detected by surface plasmon resonance.
- the amplified nucleic acid may be detected by using a fluorogenic primer as the primer and labeling the fluorogenic primer.
- the amplified nucleic acid may be detected by using an exciton effect by using an exciton primer or an exciton probe in the amplification reaction.
- the method of optically detecting the nucleic acid may be a method using an intercalating dye.
- the nucleic acid amplification reaction it is preferable to carry out the nucleic acid amplification reaction by the SmartAmp method or the LAMP method, and to detect the labeling with an exciton primer or an exciton probe.
- nucleic acid melting curve can be drawn, and the melting curve can be used to determine the properties of the amplified product, such as whether it is a false positive or true positive.
- the present invention is useful in fields related to the recovery, amplification, and detection of nucleic acids from samples.
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Abstract
Description
特許文献2:国際公開第2002/023776号
特許文献1及び2の全記載は、ここに特に開示として援用される。
[1]
複数の液体収容槽、流路切替手段、及び各液体収容槽と流路切替手段との間の流路を有する、流体処理カートリッジであって、
流路切替手段は、ローターと、ローター外周面と内周面が密着状態を維持しながらローターが摺動可能なシリンダーを含み、
ローターは外周面に、ローターの回転または平行移動により、シリンダーが有する複数の流路口を連絡可能にする少なくとも1つのグルーブを有する、及び/または
ローターは、ローターの回転または平行移動により、シリンダーが有する複数の流路口を連絡可能にする少なくとも1つの貫通孔を有する、
前記カートリッジ。
[2]
前記グルーブは、ローター内部からの貫通孔の開口を有する、[1]に記載のカートリッジ。
[3]
前記ローターは、中実円筒であるか、または内部に空洞を有する円筒状外壁を有し、前記貫通孔は、中実円筒を貫通する孔であるか、円筒状外壁を貫通する孔である、[1]または[2]に記載のカートリッジ。
[4]
複数の液体収容槽、流路及びシリンダーは一体物であり、ローターは、シリンダー開口から挿入可能である、[1]~[3]のいずれか1項に記載のカートリッジ。
[5]
前記ローターの両末端が開口であり、前記ローターは、各開口からの内部空間を有し、2つ又はそれ以上の内部空間を隔てる内部構造部を有する、[1]~[4]のいずれか1項に記載のカートリッジ。
[6]
前記シリンダーは、シリンダー内部側末端は閉鎖されているか、またはシリンダー内部側からローター内部空間に延在するノズルを有し、ノズル以外は閉鎖されており、ノズルの先端は開口であり、ノズルはシリンダーの流路に連絡可能である、[1]~[5]のいずれか1項に記載のカートリッジ。
[7]
前記流体処理カートリッジは、流路切替手段内または液体収容槽と流路切替手段との間の流路途中に担体を有する、[1]~[6]のいずれか1項に記載のカートリッジ。
[8]
前記ローターの両末端が開口であり、前記ローターが、各開口からの内部空間を有し、2つ又はそれ以上の内部空間を隔てる内部構造部を有する場合に、
流路切替手段内の担体は、ローター内部の前記内部構造部に含まれる、[7]に記載のカートリッジ。
[9]
前記ローターの両末端が開口であり、前記ローターが、各開口からの内部空間を有し、2つ又はそれ以上の内部空間を隔てる内部構造部を有する場合に、
前記内部構造部は、シリンダー外部側に液体受領部を含み、かつ液体受領部はローター外へ連絡可能な排出路を有する、[5]~[8]のいずれか1項に記載のカートリッジ。
[10]
液体受領部は漏斗状である、[9]に記載のカートリッジ。
[11]
前記流体処理カートリッジは、流路切替手段と流路を介して接続する廃液回収槽をさらに有し、かつ廃液回収槽内に排気口を有する、[1]~[10]のいずれか1項に記載のカートリッジ。
[12]
前記流体処理カートリッジ使用時に、排気口は、廃液回収槽内の廃液槽注入口より上方に位置する、[11]に記載のカートリッジ。
[13]
前記流体処理カートリッジ使用時に、液体収容槽及び流路内の液体流通及び排気は、前記排気口からの排気により生じる陰圧により行われる、[11]または[12]に記載のカートリッジ。
[14]
前記流体処理カートリッジは、流路切替手段と流路を介して接続する反応槽をさらに有する、[1]~[13]のいずれか1項に記載のカートリッジ。
[15]
複数の液体収容槽の少なくとも一部及び反応槽は、通気孔または通気孔に通じる通気路を有し、前記流体処理カートリッジ使用時に、液体収容槽の通気孔への連絡口は、液体収容槽の上方に位置する、[1]~[14]のいずれか1項に記載のカートリッジ。
[16]
流路切替手段において、ローターとシリンダーの位置関係が、少なくとも反応槽が閉鎖される位置を有する、[1]~[15]のいずれか1項に記載のカートリッジ。
[17]
流路切替手段において、ローターとシリンダーの位置関係が、全ての流路が流路切替手段を介して非接続状態となるグルーブ及び貫通孔の構造及び位置を有する、[1]~[16]のいずれか1項に記載のカートリッジ。
[18]
前記ローターは、1または2以上のグルーブ及び1または2以上の貫通孔を有する、[1]~[17]のいずれか1項に記載のカートリッジ。
[19]
前記複数の液体収容槽は、1つまたは2以上の検体懸濁槽、1つまたは2以上の洗浄液槽、1つまたは2以上の溶離液槽、1つまたは2以上の混合槽であり、前記流体処理カートリッジは、1つまたは複数の廃液槽及び1つまたは複数の反応槽をさらに有する、[1]~[18]のいずれか1項に記載のカートリッジ。
[20]
前記カートリッジは、検体からの核酸の回収、増幅及び/又は検出用であり、核酸の増幅が反応槽で実施される、[1]~[19]のいずれか1項に記載のカートリッジ。
[21]
[1]~[20]のいずれか1項に記載のカートリッジを用いる、核酸の回収及び増幅を含む方法。
[22]
核酸の増幅が反応槽で実施されるときには、流路切替手段のローターとシリンダーは、少なくとも反応槽が閉鎖される位置をとる、または全ての流路が非接続状態となる位置をとる、[21]に記載の方法。
[23]
核酸増幅操作後に、増幅された核酸は、光学的に検出される、電気的に検出される、または表面プラズモン共鳴により検出される工程をさらに含む、[21]または[22]に記載の方法。
本発明は、流体処理カートリッジに関し、このカートリッジは、複数の液体収容槽、流路切替手段、及び各液体収容槽と流路切替手段との間の流路を有する。流路切替手段は、ローターと、ローター外周面と内周面が密着状態を維持しながらローターが摺動可能なシリンダーを含む。ローターは外周面に、ローターの回転または平行移動により、シリンダーが有する複数の流路口を連絡可能な少なくとも1つのグルーブを有することができる。ローターは、ローターの回転または平行移動により、シリンダーが有する複数の流路口を連絡可能な少なくとも1つの貫通孔を有することができる。
液体:検体懸濁槽→流路切替手段(ノズル→フィルター)→廃液槽
気体:検体懸濁槽の通気孔→検体懸濁槽
工程1では、流路切替手段のローターが、検体懸濁槽からの流路が流路切替手段のグルーブを介してシリンダー内の流路(図4の流路10に相当する)及びノズルに連通する位置である。この流路接続は、図4Aの流路3からノズルに至る配置である。さらに、液体受領部の下方から廃液槽に連絡する貫通孔と流路がグルーブを介して連通する位置を取るこの流路接続は、図4A及び図5Cの配置に相当する。廃液槽内は陰圧になっており、液体は、検体懸濁槽から流路を介して流路切替手段に流入し、流路切替手段内のフィルターを通過し、流路切替手段と廃液槽との間の流路を介して陰圧状態の廃液槽に至る。検体懸濁槽からの液体が核酸を含む場合、フィルターに核酸がトラップされる。
液体:洗浄液槽→流路切替手段(ノズル→フィルター)→廃液槽
気体:洗浄液槽の通気孔→洗浄液槽
工程2では、流路切替手段のローターが回転して、洗浄液槽からの流路が流路切替手段のグルーブを介してシリンダー内の流路(図4の流路10に相当する)及びノズルに連通する位置になり、かつ、液体受領部の下方から廃液槽に連絡する貫通孔と連通する位置を取る。この流路接続は、流路切替手段のグルーブに接続する流路が洗浄液槽からの流路であることから、流路及びグルーブの高さまたは外周上の位置は工程1と異なる(工程1では流路切替手段のグルーブに接続する流路は検体懸濁槽からの流路である)が、図4A及び図5Cに示す配置と同様である。これにより、洗浄液槽内の洗浄液は、洗浄液槽から流路を介して流路切替手段内のノズルに流入し、ノズルからフィルターを通過して、液体受領部の下方から廃液槽との間の流路を介して陰圧状態の廃液槽に至る。洗浄液槽からの洗浄液がフィルターを洗浄する。
気体:洗浄液槽の通気孔→流路切替手段(ノズル→フィルター)→廃液槽
1回または2回の洗浄工程終了後に、流路切替手段の位置は、工程2と同じ位置にして、さらに洗浄液槽の通気孔から外気を取り入れ、外気は流路切替手段内のフィルターを通過して、陰圧状態の廃液槽に至る。これにより、フィルターが乾燥される。
液体:溶離液槽→流路切替手段(ノズル→フィルター)→混合槽
気体:混合槽→流路切替手段→廃液槽
工程4では、流路切替手段のローターが回転、溶離液槽からの流路が流路切替手段のグルーブを介してシリンダー内の流路(図4の流路10に相当する)及びノズルの上方に連通する位置になり、かつ、液体受領部の下方からの開口と混合槽に連絡する貫通孔とが連通する位置を取る。この流路接続は、工程1~3とは、流路及びグルーブの高さまたは外周上の位置は異なるが、図4A及び図5Cに示す態様である。さらに、この工程では、気体も流路切替手段を経由して、混合槽から廃液槽に流れる。混合槽からの流路がローターのグルーブに連通する位置であり、同グルーブが廃液槽に連絡する流路と連通する位置になる。この流路接続は、図2Aに示す状態に相当する。これにより、溶離液槽内の溶離液は、溶離液槽から流路を介してノズルに流入し、フィルターを通過して、混合槽に至る。溶離液槽からの溶離液がフィルターにトラップされた核酸を溶離洗浄する。さらに、混合槽からは気体が流路切替手段を経由して陰圧状態の廃液槽に吸引される。
液体:反応液槽→流路切替手段→混合槽
気体:混合槽→流路切替手段→廃液槽
工程5では、流路切替手段のローターが回転、反応液槽からの流路が流路切替手段のグルーブに連通する位置になり、かつ、流路切替手段の同グルーブと混合槽への流路とが連通する位置を取る。この流路接続は、図2Aに示す状態に相当する。さらに、この位置取りは、気体の流路となる、混合槽からの流路が流路切替手段のグルーブに連通する位置であり、かつ、流路切替手段の同グルーブが廃液槽に連絡する流路と連通する位置取りでもある。この流路接続も、図2Aに示す状態に相当する。これにより、反応液槽内の反応液は、反応液槽から流路及び流路切替手段を介して混合槽に至る。混合槽内では、溶離液、反応液及び溶離された核酸が混合される。さらに、混合槽からは気体が流路切替手段を経由して陰圧の廃液槽に吸引される。
液体:混合槽→流路切替手段→反応槽
気体:反応槽→流路切替手段→廃液槽
工程6では、流路切替手段のローターが回転、混合槽からの流路が流路切替手段のグルーブに連通する位置になり、かつ、流路切替手段の同グルーブと反応槽への流路とが連通する位置を取る。この流路接続は、図2Aに示す状態に相当する。さらにこの位置取りは、気体の流路となる、反応槽の排気口からの流路が流路切替手段のグルーブに連通する位置であり、かつ流路切替手段の同グルーブが廃液槽に連絡する流路とが連通する位置取りでもある。この流路接続は、図3Aに示す状態に相当する。これにより、混合槽内の反応液は、混合液槽から流路を介して流路切替手段のグルーブを経由して、反応槽に至る。混合槽からの混合反応液が反応槽に移送される。さらに、反応槽からは気体が流路切替手段を経由して陰圧状態の廃液槽に吸引される。
本発明は、上記本発明の流体処理カートリッジを用いる、検体の目的核酸を増幅する方法を包含し、この方法は、核酸増幅に増幅核酸の検出を含むこともできる。
20~25 液体収容槽
30 廃液回収槽
31 排気口
40 反応槽
50~60 流路
Claims (23)
- 複数の液体収容槽、流路切替手段、及び各液体収容槽と流路切替手段との間の流路を有する、流体処理カートリッジであって、
流路切替手段は、ローターと、ローター外周面と内周面が密着状態を維持しながらローターが摺動可能なシリンダーを含み、
ローターは外周面に、ローターの回転または平行移動により、シリンダーが有する複数の流路口を連絡可能にする少なくとも1つのグルーブを有する、及び/または
ローターは、ローターの回転または平行移動により、シリンダーが有する複数の流路口を連絡可能にする少なくとも1つの貫通孔を有する、
前記カートリッジ。 - 前記グルーブは、ローター内部からの貫通孔の開口を有する、請求項1に記載のカートリッジ。
- 前記ローターは、中実円筒であるか、または内部に空洞を有する円筒状外壁を有し、前記貫通孔は、中実円筒を貫通する孔であるか、円筒状外壁を貫通する孔である、請求項1または2に記載のカートリッジ。
- 複数の液体収容槽、流路及びシリンダーは一体物であり、ローターは、シリンダー開口から挿入可能である、請求項1~3のいずれか1項に記載のカートリッジ。
- 前記ローターの両末端が開口であり、前記ローターは、各開口からの内部空間を有し、2つ又はそれ以上の内部空間を隔てる内部構造部を有する、請求項1~4のいずれか1項に記載のカートリッジ。
- 前記シリンダーは、シリンダー内部側末端は閉鎖されているか、またはシリンダー内部側からローター内部空間に延在するノズルを有し、ノズル以外は閉鎖されており、ノズルの先端は開口であり、ノズルはシリンダーの流路に連絡可能である、請求項1~5のいずれか1項に記載のカートリッジ。
- 前記流体処理カートリッジは、流路切替手段内または液体収容槽と流路切替手段との間の流路途中に担体を有する、請求項1~6のいずれか1項に記載のカートリッジ。
- 前記ローターの両末端が開口であり、前記ローターが、各開口からの内部空間を有し、2つ又はそれ以上の内部空間を隔てる内部構造部を有する場合に、
流路切替手段内の担体は、ローター内部の前記内部構造部に含まれる、請求項7に記載のカートリッジ。 - 前記ローターの両末端が開口であり、前記ローターが、各開口からの内部空間を有し、2つ又はそれ以上の内部空間を隔てる内部構造部を有する場合に、
前記内部構造部は、シリンダー外部側に液体受領部を含み、かつ液体受領部はローター外へ連絡可能な排出路を有する、請求項5~8のいずれか1項に記載のカートリッジ。 - 液体受領部は漏斗状である、請求項9に記載のカートリッジ。
- 前記流体処理カートリッジは、流路切替手段と流路を介して接続する廃液回収槽をさらに有し、かつ廃液回収槽内に排気口を有する、請求項1~10のいずれか1項に記載のカートリッジ。
- 前記流体処理カートリッジ使用時に、排気口は、廃液回収槽内の廃液槽注入口より上方に位置する、請求項11に記載のカートリッジ。
- 前記流体処理カートリッジ使用時に、液体収容槽及び流路内の液体流通及び排気は、前記排気口からの排気により生じる陰圧により行われる、請求項11または12に記載のカートリッジ。
- 前記流体処理カートリッジは、流路切替手段と流路を介して接続する反応槽をさらに有する、請求項1~13のいずれか1項に記載のカートリッジ。
- 複数の液体収容槽の少なくとも一部及び反応槽は、通気孔または通気孔に通じる通気路を有し、前記流体処理カートリッジ使用時に、液体収容槽の通気孔への連絡口は、液体収容槽の上方に位置する、請求項1~14のいずれか1項に記載のカートリッジ。
- 流路切替手段において、ローターとシリンダーの位置関係が、少なくとも反応槽が閉鎖される位置を有する、請求項1~15のいずれか1項に記載のカートリッジ。
- 流路切替手段において、ローターとシリンダーの位置関係が、全ての流路が流路切替手段を介して非接続状態となるグルーブ及び貫通孔の構造及び位置を有する、請求項1~16のいずれか1項に記載のカートリッジ。
- 前記ローターは、1または2以上のグルーブ及び1または2以上の貫通孔を有する、請求項1~17のいずれか1項に記載のカートリッジ。
- 前記複数の液体収容槽は、1つまたは2以上の検体懸濁槽、1つまたは2以上の洗浄液槽、1つまたは2以上の溶離液槽、1つまたは2以上の混合槽であり、前記流体処理カートリッジは、1つまたは複数の廃液槽及び1つまたは複数の反応槽をさらに有する、請求項1~18のいずれか1項に記載のカートリッジ。
- 前記カートリッジは、検体からの核酸の回収、増幅及び/又は検出用であり、核酸の増幅が反応槽で実施される、請求項1~19のいずれか1項に記載のカートリッジ。
- 請求項1~20のいずれか1項に記載のカートリッジを用いる、核酸の回収及び増幅を含む方法。
- 核酸の増幅が反応槽で実施されるときには、流路切替手段のローターとシリンダーは、少なくとも反応槽が閉鎖される位置をとる、または全ての流路が非接続状態となる位置をとる、請求項21に記載の方法。
- 核酸増幅操作後に、増幅された核酸は、光学的に検出される、電気的に検出される、または表面プラズモン共鳴により検出される工程をさらに含む、請求項21または22に記載の方法。
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| PCT/JP2022/036721 WO2024069936A1 (ja) | 2022-09-30 | 2022-09-30 | 流体処理カートリッジ並びに核酸の回収及び増幅方法 |
| EP22960995.3A EP4597117A1 (en) | 2022-09-30 | 2022-09-30 | Fluid processing cartridge, and method for recovering and amplifying nucleic acid |
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| PCT/JP2022/036721 WO2024069936A1 (ja) | 2022-09-30 | 2022-09-30 | 流体処理カートリッジ並びに核酸の回収及び増幅方法 |
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