EP3052233A1 - Fluidikmodul, vorrichtung und verfahren zum aliquotieren einer flüssigkeit - Google Patents
Fluidikmodul, vorrichtung und verfahren zum aliquotieren einer flüssigkeitInfo
- Publication number
- EP3052233A1 EP3052233A1 EP14772107.0A EP14772107A EP3052233A1 EP 3052233 A1 EP3052233 A1 EP 3052233A1 EP 14772107 A EP14772107 A EP 14772107A EP 3052233 A1 EP3052233 A1 EP 3052233A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measuring chamber
- fluid
- chamber
- fluidic module
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B01L3/50273—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 the means or forces applied to move the fluids
-
- 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
- B01L3/502715—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 interfacing components, e.g. fluidic, electrical, optical or mechanical interfaces
-
- 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
- B01L3/502746—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 the means for controlling flow resistance, e.g. flow controllers, baffles or throttle 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
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
- B01L2200/0605—Metering of fluids
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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
- 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
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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
- B01L2300/06—Auxiliary integrated devices, integrated components
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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
- B01L2300/0803—Disc shape
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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
- B01L2300/0861—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
- 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
- B01L2300/0867—Multiple inlets and one sample wells, e.g. mixing, dilution
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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
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/087—Multiple sequential chambers
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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
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0403—Moving fluids with specific forces or mechanical means specific forces
- B01L2400/0409—Moving fluids with specific forces or mechanical means specific forces centrifugal forces
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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
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0481—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure squeezing of channels or chambers
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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
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
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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
- B01L2400/08—Regulating or influencing the flow resistance
- B01L2400/084—Passive control of flow resistance
Definitions
- the present invention relates to a fluidic module, a device for aliquoting a fluid and a method for aliquoting a fluid.
- Embodiments relate to parallel-pneumatic metering and aliquoting.
- centrifugal microfluidics In centrifugal microfluidics, rotors are used to process liquids. Corresponding rotors include chambers for collecting liquid and channels for fluid guidance. Under centripetal acceleration of the rotor, the liquid is forced radially outwards and can thus pass through a corresponding fluid guide to a radially outer position. Centrifugal microfluidics is used, for example, in the field of life sciences, especially in laboratory analysis. Centrifugal microfluidics is used to automate process flows, replacing processes such as pipetting, mixing, measuring, aliquoting and centrifuging.
- Aliquoting of liquids is required, in particular at the beginning, during or at the end of a process chain, in order to carry out a number of independent detection reactions with one sample.
- aliquoting processes are therefore indispensable. Not only is aliquoting of a single volume of liquid into multiple aliquots required for certain analytical methods, but also the aliquoting of several different volumes of liquid, the aliquots of which are further processed - e.g. have to be mixed together.
- Quantitatively meaningful analysis processes can only be carried out if the aliquots have volumes defined as precisely as possible. For this Grand, each aliquoting step should always be combined with a measuring step. This applies even if different Aliquotier suitse take place in parallel, in a centrifugal microfluidic rotor.
- Godino et al. [Lab Chip, 2013, 13, 685-69, Figure 1] describes a metering structure that includes a single compression chamber having an inlet and an outlet channel.
- the compression chamber looks from two radially outwardly extending sections (left & right) and a radially inner section.
- a defined partial volume of the left will be included. Excess fluid volume, which exceeds the volume of the left portion, does not remain in the left portion and thus can not be separated.
- No. 5,409,665 describes how end cavities in a centrifugally microfluidic rotor can be filled with radially inwardly extending ends via a supply channel running radially on the outside.
- the end cavities are vented so that air can escape from the end cavities during the process. Subsequently, the supernatant is discharged via the end cavities via the supply channel and a siphon.
- the liquid-gas interface between the liquid in the metering channels and the air in the end cavities becomes unstable, so that the compressed gas escapes from the end cavity through the liquid phase in the Abmesskanal, and this can be transferred into the Endkavtician.
- the present invention is therefore based on the object to provide an improved concept for aliquoting a liquid.
- This object is achieved by a fluidic module according to claim 1, a device for aliquoting a liquid according to claim 23, a method for aliquoting a liquid according to claim 24 and a fluidic module according to claim 25th
- a fluidic module having a first measuring chamber, a second measuring chamber, a first fluid inlet channel connected to the first measuring chamber, a second fluid inlet channel connected to the second measuring chamber, a first fluid outlet channel, the is connected to the first measuring chamber, and a second fluid outlet channel, which is connected to the second measuring chamber.
- the fluidic module is designed such that upon rotation of the fluidic module about a rotation center, a liquid is centrifugally driven via the first fluid inlet channel into the first measuring chamber and via the second fluid inlet channel into the second measuring chamber, so that through the first in the measuring chamber and in the second measuring chamber driven liquid is compressed before a present in the first measuring chamber and in the second measuring chamber available compressible medium.
- the fluidic module is further designed such that with a reduction of the rotational frequency and a consequent expansion of the compressible medium, a majority of the liquid present in the first measuring chamber via the first Fluidauslasskanal from the first measuring chamber and a majority of existing in the second measuring chamber liquid over the second fluid outlet channel is driven from the second measuring chamber.
- the drive is further designed to reduce in a second phase, the rotational frequency with which the fluidic module is acted upon so that by reducing the .Rotationsfrequenz and the consequent expansion of the compressible medium, a majority of existing in the first measuring chamber liquid over the first Fluid outlet channel from the first measuring chamber and a majority of the liquid present in the second measuring chamber is driven via the second fluid outlet channel from the second measuring chamber.
- Further exemplary embodiments provide a method for aliquoting a liquid with the fluidic module described above.
- the method comprises applying the fluidic module at a rotational frequency such that fluid is centrifugally driven via the first fluid inlet channel into the first measuring chamber and via the second fluid inlet channel into the second measuring chamber, so that through the fluid driven into the first measuring chamber and the second measuring chamber a compressible medium previously present in the first measuring chamber and in the second measuring chamber is compressed.
- the method further comprises reducing the rotational frequency with which the fluidic module is acted upon, so that by reducing the rotational frequency and the consequent expansion of the compressible medium, a majority of the liquid present in the first measuring chamber via the first fluid outlet from the first measuring chamber and a majority of Liquid present in the second measuring chamber is driven out of the second measuring chamber via the second fluid outlet channel.
- the fluidic module has a measuring chamber, a compression chamber connected to the measuring chamber via a fluid overflow, a fluid inlet channel connected to the measuring chamber, and a fluid outlet channel connected to the measuring chamber.
- the fluidic module is designed such that during a rotation of the fluidic module about a rotational position, a fluid is centrifugally driven via the fluid inlet channel into the measuring chamber until liquid passes from the measuring chamber into the compression chamber via the fluid overflow, and until it reaches the compression chamber Measuring chamber driven liquid caused compression of a previously present in the measuring chamber, in the compression chamber and the fluid overflow compressible medium is so large that at a reduction of a rotational frequency and consequent expansion of the compressible medium, a large part of existing in the measuring chamber liquid through the Fluidauslasskanal the measuring chamber is driven. Furthermore, the fluidic module is designed such that when reducing the rotational frequency and the consequent expansion of the a large part of the liquid present in the measuring chamber is driven out of the measuring chamber via the fluid outlet channel.
- the fluidic module may be configured such that during a rotation of the fluidic module about a rotation center through a centrifugal pressure caused by the rotation and acting on the liquid, the liquid is driven into the measuring chamber via the fluid inlet channel until liquid flows from the measuring chamber into the fluid via the fluid overflow Compression chamber passes, and until caused by a caused by the liquid driven into the measuring chamber compression of a previously present in the measuring chamber, in the compression chamber and the fluid overflow compressible medium resulting back pressure is so large that with a reduction of a rotational frequency and consequent reduction in the Centrifugal pressure expands the compressible medium and a majority of the existing liquid in the measuring chamber via the Fluidauslasskanal drives out of the measuring chamber.
- the fluidic module be formed such that when reducing the rotational frequency and the consequent reduction of Zentrifugaldriicks the compressible medium expands and drives a large part of the existing liquid in the measuring chamber via the Fluidauslasskanal from the measuring chamber.
- the drive is designed to apply in a first phase, the fluidic module with such a rotational frequency that the liquid is driven centrifugally via the fluid inlet channel into the measuring chamber until liquid passes through the fluid overflow from the measuring chamber into the compression chamber, and to one by the in the measuring chamber driven liquid caused compression of a previously present in the measuring chamber, in the compression chamber and the fluid overflow compressible medium is so large that with a reduction in the rotational frequency and consequent expansion of the compressible medium,
- the drive is further designed to reduce in a second phase, the rotational frequency with which the fluidic module is acted upon so that due to the reduction of the rotational frequency caused expansion of the compressible medium, a majority of the liquid present in the measuring chamber via the Fluidauslasskanal from the measuring chamber is driven. Further embodiments provide a method for aliquoting a liquid with the fluidic module described above.
- the method comprises applying the fluidic module at a rotational frequency such that the fluid is centrifugally driven into the measuring chamber via the fluid inlet channel until liquid passes from the measuring chamber into the compression chamber via the fluid overflow and until compression of a fluid caused by the fluid driven into the measuring chamber previously in the measuring chamber, in the compression chamber and the fluid overflow existing compressible medium is so large that with a reduction in the rotational frequency and consequent expansion of the compressible medium, a majority of existing in the measuring chamber fluid is driven through the Fluidauslasskanal from the measuring chamber.
- the method comprises reducing the rotational frequency with which the fluidic module is acted upon, so that a large part of the liquid present in the measuring chamber is driven out of the measuring chamber via the fluid outlet channel due to the expansion of the compressible medium due to the reduction of the rotational frequency.
- Fig. 1 is a side elevational view for explaining embodiments of the present invention
- FIG. 2 is a schematic side view for explaining embodiments of the present invention.
- 3 a is a schematic plan view of a section of a fluidic module according to an exemplary embodiment of the present invention.
- 3b is a schematic plan view of a section of a fluidic module according to an embodiment of the present invention.
- FIG. 3c is a schematic plan view of a section of a fluidic module according to an embodiment of the present invention
- FIG. 3d is a schematic plan view of a section of a fluidic module according to an exemplary embodiment of the present invention
- FIG. 3e is a schematic plan view of a detail of a fluidic module according to an embodiment of the present invention
- 4a is a schematic plan view of a section of a fluidic module and a
- Liquid level in the fluidic module at a first time according to a
- 4b is a schematic plan view of the detail of the fluidic module and a
- Liquid level in the fluidic module at a second time according to an embodiment of the present invention
- Fig. 4c is a schematic plan view of the section of the fluidic module and a
- Liquid level in the fluidic module at a third time according to an embodiment of the present invention.
- Fig. 4d is a schematic plan view of the section of the fluidic module and a
- Liquid level, in the fluidic module at a fourth time, according to an embodiment of the present invention is a schematic plan view of the detail of the fluidic module and a
- Liquid level in the fluidic module at a fifth time according to an embodiment of the present invention
- 4f is a schematic plan view of the detail of the fluidic module and a
- Liquid level in the fluidic module at a sixth time according to an embodiment of the present invention.
- FIG. 5 is a schematic plan view of a section of a fluidic module according to an embodiment of the present invention; a schematic plan view of a partial section of the fluidic module shown in Figure 5 and a fluid level in the fluidic module at a first time.
- Fig. 6b is a schematic plan view of a partial section of that shown in Fig. 5
- Fluidikmoduls and a fluid level in the fluidic module at a second time is a schematic plan view of a partial section of the fluidic module shown in FIG. 5 and a fluid level in the fluidic module at a third point in time;
- Fig. 6d is a schematic plan view of a partial section of that shown in Fig. 5
- Fluidikmoduls and a liquid level in the fluidic module at a fourth time are Fluidikmoduls and a liquid level in the fluidic module at a fourth time
- Fig. 6e is a schematic plan view of a partial section of that shown in Fig. 5
- Fluidikmoduls and a fluid level in the fluidic module at a fifth time Fluidikmoduls and a fluid level in the fluidic module at a fifth time
- Fig. 7 is a schematic plan view of a section of a fluidic module.
- the fluidic structures can have suitable dimensions in the micrometer range for handling corresponding volumes of liquid.
- the fluidic structures (geometric structures) and the associated methods are suitable for metering and / or aliquoting liquid in centrifuge rotors.
- FIGS. 3 and 4 Before referring to FIGS. 3 and 4, an embodiment of a fluidic module with corresponding fluidic structures will be described in more detail first described with reference to the figures 1 and 2 embodiments of a device according to the invention.
- FIG. 1 shows a device 8 with a module 10 in the form of a body of revolution, which has a substrate 12 and a lid 14.
- the substrate 12 and the cover 14 may be circular form in plan view, with a central opening through which the rotary body 10 may be attached via a conventional fastening means 16 to a rotating part 18 of a drive device.
- the rotating part 18 is rotatably supported on a stationary part 22 of the drive device 20.
- the drive device can be, for example, a conventional centrifuge with adjustable rotational speed or even a CD or DVD drive.
- a control device 24 may be provided, which is designed to control the drive device 20 in order to act on the rotation body 10 with rotations with different rotational frequencies.
- controller 24 may be implemented by, for example, a suitably programmed computing device or custom integrated circuit.
- the controller 24 may further be configured to control the drive device 20 upon manual inputs by a user to effect the required rotations of the rotating body. In either case, the controller 24 is configured to control the drive device 20 to apply the rotational body at the required rotational frequencies to implement the invention as described herein.
- drive device 20 a conventional centrifuge with only one direction of rotation can be used.
- the rotary body 10 has the required fluidic structures.
- the required fluidic structures may be formed by cavities and channels in the lid 14, the substrate 12 or in the substrate 12 and the lid 14.
- fluidic structures may be imaged in the substrate 12 while fill openings and vents are formed in the lid 14.
- fluidic modules 32 are inserted into a rotor 30 and together with the rotor 30 form the rotary body 10.
- the fluidic modules 32 may each have a substrate and a lid, in which corresponding fluidic structures may be formed.
- the rotational body 10 formed by the rotor 30 and the fluidic modules 32 in turn can be acted upon by a drive device 20, which is controlled by the control device 24, with a rotation.
- the fluidic module or the rotational body which has the fluidic structures can be formed from any suitable material, for example a plastic such as PMMA (polymethyl methacrylate 1, polycarbonate, PVC, polyvinyl chloride) or PDMS ( Polydimethylsiloxane) glass or the like.
- a plastic such as PMMA (polymethyl methacrylate 1, polycarbonate, PVC, polyvinyl chloride) or PDMS ( Polydimethylsiloxane) glass or the like.
- PMMA polymethyl methacrylate 1, polycarbonate, PVC, polyvinyl chloride
- PDMS Polydimethylsiloxane glass
- FIG. 3a A plan view of a section of a fluidic module 50 according to the invention, in which a cover has been omitted, so that the fluidic structures can be seen, is shown in FIG. 3a.
- the fluidic module 50 shown in FIG. 3 a may have the shape of a disk, so that the fluidic structures are rotatable about a center of rotation 52.
- the disc may have a central hole 54 for attachment to a drive device, as discussed above with reference to FIGS. 1 and 2, for example.
- the fluidic structures of the fluidic module 50 may include a measuring chamber 60, a compression chamber 66 connected to the measuring chamber 60 via a fluid overflow 68, a fluid inlet channel 70 connected to the measuring chamber 60, and a fluid outlet channel 72 connected to the measuring chamber 60 , exhibit.
- the fluidic module 50 can be designed such that upon rotation of the fluidic module 50 about the center of rotation 52 a liquid is centrifugally driven via the fluid inlet channel 70 into the measuring chamber 60 until liquid passes via the fluid overflow 68 from the measuring chamber 60 into the compression chamber 66, and a compression caused by the liquid driven into the measuring chamber 60, of a compressible medium previously present in the measuring chamber 60, in the compression chamber 66 and in the fluid overflow 68, is such that a reduction in a rotational frequency and a consequent expansion of the compressible medium results in a large part of the compressible medium in the measuring chamber 60 existing liquid is driven via the fluid outlet channel 72 from the measuring chamber 60.
- the fluidic module 50 may be designed such that, with a reduction in the rotational frequency and the consequent expansion of the compressible medium, a majority of the liquid present in the measuring chamber 60 is driven out of the measuring chamber 60 via the fluid outlet channel 72.
- the metering chamber 60, the compression chamber 66, and the fluid overflow 68 may be configured such that upon rotation of the fluidic module 50 about the center of rotation 52, the fluid will be centrifugally driven via the fluid inlet channel 70 into the metering chamber 60 until liquid is delivered through the fluid overflow 68 of FIG Measuring chamber 60 passes into a section (eg catchment area) 67 of the compression chamber 66, in which the liquid which has entered the section of the compression chamber 66 is fluidly separated from the liquid present in the measuring chamber 60.
- the fluid overflow 68 can be arranged radially further inwards than a radially outer end of the measuring chamber 60.
- the fluid overflow 68 can be arranged at a radially inner end of the measuring chamber 60 and / or the compression chamber 66 , In this case, the measuring chamber 60 is first filled (completely) before liquid passes from the measuring chamber 60 via the fluid overflow 68 into the section 67 of the compression chamber 66.
- a radially outer end of the compression chamber 66 can be arranged radially further outward than a radially outer end of the measuring chamber 60.
- the fluidic module 50 can be designed such that upon rotation of the fluidic module
- the liquid centrifugally driven into the measuring chamber 60 encloses the compressible medium present in the measuring chamber 60, the compression chamber 66 and the fluid overflow 68.
- the measuring chamber may contain (dry or liquid) reagents in addition to the compressible medium.
- the metering chamber 60 may include a fluid inlet 62 and a fluid outlet 64, the fluid inlet channel 70 being connected to the metering chamber 60 via the fluid inlet 62, and the fluid outlet channel 72 being connected to the metering chamber 60 via the fluid outlet 64.
- the metering chamber 60 may also include a combined fluid inlet / outlet 62,64 with the fluid inlet channel 70 and the fluid outlet channel 72 connected to the metering chamber 60 via the combined fluid inlet / outlet 62,64.
- the fluid outlet 64 of the measuring chamber 60 can be arranged such that the fluid outlet 64 of the measuring chamber 60 is sealed by the fluid centrifugally driven into the measuring chamber 60.
- the fluid outlet 64 of the measuring chamber 60 can be arranged at a radially outer end of the measuring chamber 60 (below), as shown in Fig. 3a according to a possible embodiment.
- the fluid inlet 62 of the measuring chamber is likewise arranged in the embodiment shown in FIG. 3 a at the radially outer end of the measuring chamber 60 (below).
- the fluid inlet 62 of the measuring chamber 60 may also be disposed at another position, such as at a radially inner end of the measuring chamber 60 (above) or between the radially inner end of the measuring chamber 60 and the radially outer end of the measuring chamber 60.
- the fluidic module 50 can also be designed such that upon rotation of the
- Fluidic module 50 is centrifugally driven around the center of rotation 52 more fluid into the measuring chamber 60 than the measuring chamber 60 can hold, so that liquid passes through the fluid overflow 68 from the measuring chamber 60 into the compression chamber 66.
- the fluid inlet channel 70 may be connected to an inlet region of the fluidic module 50.
- the inlet region of the fluidic module 50 can be designed such that it can hold a larger volume of the liquid (liquid volume) than the measuring chamber 60.
- the inlet region of the fluidic module 50 can also be designed such that a larger volume of liquid can be introduced into the inlet region of the fluidic module 50 than the measuring chamber 60 can hold.
- the inlet region of the fluidic module 50 can be connected to a fluid chamber, so that liquid passes from the fluid chamber into the inlet region of the fluidic module 50 before and / or during rotation of the fluidic module 50 about the center of rotation 52.
- the inlet region of the fluidic module 50 can be designed as a fluid intake or be connected to a fluid intake, so that fluid can be added to the fluid intake before and / or during rotation of the fluidic module 50 about the rotation center 52.
- the measuring chamber 60 can be designed to meter off a defined volume of the liquid (liquid volume).
- the measuring chamber 60 can thus be designed so that it can hold a defined and reproducible volume of liquid, which is then subsequently e.g. can be driven via the fluid outlet channel 72 into a chamber connected to the fluid outlet channel 72,
- the measuring chamber 60, the compression chamber 66 and the fluid overflow 68 can be designed such that only then liquid from the measuring chamber 60 via the
- Fluid overflow 68 enters the section 67 of the compression chamber 66 after the Measuring chamber 60 has absorbed the volume of liquid to be measured (for example, after the measuring chamber 60 is (completely) filled).
- fluid driven centrifugally into the measuring chamber 60 flows after the measuring chamber 60 has absorbed the volume of liquid to be metered from the measuring chamber 60 via the fluid overflow 68 into the section 67 of the compression chamber 66 so that the filling level in the measuring chamber 60 does not change.
- the volume of the liquid (liquid volume) measured by the measuring chamber 60 can be defined by an overflow point between the measuring chamber 60 and the compression chamber 66.
- the overflow point can be defined, for example, by a mouth of the fluid overflow 68 into the measuring chamber 60 or by a geometric shape of the fluid overflow 68.
- the fluid overflow 68 may be formed such that it has at least one area (overflow point) between the measuring chamber 60 and the compression chamber, which is arranged radially further inward (ie, has a smaller distance to the center of rotation) than the mouths of the fluid overflow 68 to the measuring chamber 60 and the compression chamber 66.
- liquid can be aliquoted, or in other words, at least one aliquot part (partial portion) of the measuring chamber 60
- Liquid are metered and then driven by the expansion of the compressible medium via the Fluidauslasskanal 72 into a chamber connected to the Fluidauslasskanal 72.
- a quotient of the volume of liquid metered by the metering chamber 60 and the volume of the liquid to be metered which contains the inlet portion of the fluidic module 50 or that is added to the inlet portion of the fluidic module 50 is either integer or not can be integer.
- the fluidic module 50 can be designed such that a fluidic resistance of the fluid inlet channel 70 is greater than a fluidic resistance of the fluid outlet channel 72.
- the fluidic module 50 may also be designed in such a way that that a fluidic resistance of the fluid! the measuring chamber 60 is greater than a fluidic resistance of the fluid outlet 64 of the measuring chamber 60.
- the fluidic module 50 can be designed such that, when reducing the rotational frequency and the consequent expansion of the compressible medium, the liquid present in the measuring chamber 60 is (almost) completely driven out of the measuring chamber 60.
- a (negligible) part of the liquid can remain or remain in the measuring chamber 60, so that the liquid is not completely but almost completely, e.g. at least 90% (or 80%, 85%, 95%, 99%) of the measuring chamber 60 is driven. It should also be noted that a (negligible) part of the liquid can also be driven to the measuring chamber 60 via the inlet channel 70.
- the fluidic module 50 can be designed such that the liquid is largely, e.g. at least 90% (or 80%, 85%, 95%, 99%) is expelled from the measuring chamber 60 via the fluid outlet channel 72.
- the fluidic module 50 may be designed so that when the rotational frequency is reduced, the liquid that has entered the compression chamber 66 remains in the compression chamber 66, so that when reducing the rotational frequency and the resulting expansion of the compressible medium, the liquid present in the measuring chamber 60 (almost) completely driven out of the measuring chamber 60.
- the liquid remaining in the compression chamber 66 thus occupies part of the volume of the compression chamber 66.
- the compressible medium thus has less volume available in the compression chamber 66 than before, whereby an excess volume fraction of the compressible medium due to the liquid remaining in the compression chamber 66 is discharged via the fluid outlet channel 72 not only can the liquid (almost) completely drive out of the measuring chamber 60, but also the liquid via the fluid outlet channel 72 (if a length of the fluid outlet channel 72 is correspondingly dimensioned) (almost) completely in a connected to the fluid outlet channel 72 Chamber can drive.
- the fluid overflow 68 may be formed as a fluid overflow channel connecting the measuring chamber 60 and the compression chamber 66.
- the fluid overflow channel 68 may be disposed radially further inwardly than an outer end of the metering chamber 60 and / or the compression chamber 66.
- the fluid overflow channel 68 may be located at a radially inner end of the metering chamber 60 and / or the compression chamber 68.
- the buff channel 68 may also be disposed at a radially outer end of the metering chamber 60 and / or the compression chamber 66.
- FIG. 3b shows a schematic plan view of a section of a fluidic module 50 according to one embodiment of the present invention.
- the fluidic module 50 can have a (first) measuring chamber 601 with a fluid inlet and a fluid inlet.
- a (first) compression chamber 66 r which is connected via a (first) fluid overflow 681 with the (first) measuring chamber 60
- a (first) fluid inlet channel 701 which is connected to the fluid inlet of the (first) measuring chamber 60]
- a (first) fluid outlet channel 721 which is connected to the Fluidausiass the (first) measuring chamber 601, have.
- the fluidic module 50 can have a second measuring chamber 60 2 with a fluid inlet and a fluid outlet, a second compression chamber 66 2 . which is connected via a second fluid overflow 68 2 to the second measuring chamber 60 2 , a second fluid inlet channel 70 2 , which is connected to the fluid inlet of the second measuring chamber 60 2 , and a second fluid outlet channel 72 2 , with the Fluidausiass the second measuring chamber 60 second is connected.
- the fluidic module 50 can have at least one further measuring chamber 60 2 to 60 n with a fluid inlet and a fluid outlet, at least one further compression chamber 66? to 66 ", which is connected via at least one further fluid overflow 68 2 to 68 n to the at least one further measuring chamber 60 2 to 60 n , at least one further fluid inlet channel 70 2 to 70" which communicates with the fluid inlet of the at least one further measuring chamber 60 2 to 60 n and at least one further fluid outlet channel 72 2 to 72 n , which is connected to the fluid outlet of the at least one further measuring chamber 60 2 to 60 n .
- the fluidic module 50 up to n measuring chambers 60i to 60 n with associated compression chambers 66; to 66 n , fluid overflows 68 1 to 68 n , fluid inlet channels 70 j to 70 "and fluid outlet channels 72 j to 72 n , where n is a natural number greater than or equal to one, n> 1.
- the fluid inlet channel 70] and the at least one further fluid inlet channel 70 2 to 70 n may have higher fluidic resistances than the fluid distribution channel 80j to 80 2 ,
- the fluid inlet channel 70 j and the at least one further fluid inlet channel 70 2 to 70 n may each have at least a factor of 5 (or 10, 15, 20, or more) higher fluidic resistance than the fluid distribution channel 80.
- the fluidic module 50 having a fluid inlet via a fluid channel
- the fluid channel 82 is connected to the fluid distribution channel 80.
- the fluid channel 82 may have a higher fluidic resistance than the fluid distribution channel 80.
- fluid channel 82 may have at least a factor of 5 (or 10, 15, 20, or more) higher fluidic resistance than fluid distribution channel 80.
- the inflow channels may be divided into regions of low and high fluidic resistance.
- By the areas with low fluidic resistance can be ensured that the measuring chamber 60 n contains a similar volume as the measuring chamber 60 j.
- the fluid channel (inlet channel) 82 can connect the Befllkanäle with the Fluidikeinlass, wherein the fluid channel (inlet channel) 82 can have a high fluid resistance (not necessarily high resistance).
- 3c shows a schematic plan view of a detail of a fluidic module 50 according to an embodiment of the present invention.
- the measuring chamber 60i has a fluid inlet 621 and a fluid outlet 64; wherein the fluid inlet channel 701 is connected to the measuring chamber 601 via the fluid inlet 621, and wherein the fluid outlet channel 72 is connected to the measuring chamber 60 via the fluid outlet 641.
- the metering chamber 60 2 has a combined fluid inlet / outlet 622, 64 2 , with the fluid inlet channel 70 and the fluid outlet channel 72 being connected to the metering chamber 60 2 via the combined fluid inlet / outlet 62 2 , 64 2 .
- the fluid inlet channel 70 and the fluid outlet channel 72 may be directly connected to the combined fluid inlet / outlet 62,64, i. each open directly via the combined fluid inlet / fluid outlet 62,64 in the measuring chamber 60.
- the fluid inlet channel 70 and the fluid outlet channel 72 may also be merged prior to the combined fluid inlet / outlet 62.64.
- fluid inlet channel 70 and fluid outlet channel 72 may be merged by means of a fluid channel piece (e.g., tee or Y-piece) with the fluid channel piece directly connected to combined fluid inlet / outlet 62,64.
- a fluid channel piece e.g., tee or Y-piece
- the fluid inlet channel 70 may be directly connected to the combined fluid inlet / outlet 62,64 while the fluid outlet channel 72 is connected to the combined fluid inlet / outlet 62,64 via the fluid inlet channel 70, i. the fluid outlet channel 72 first opens into the fluid inlet channel 70.
- the fluid outlet channel 72 may be directly connected to the combined fluid inlet / outlet 62,64 while the fluid inlet channel 70 is connected to the combined fluid inlet / outlet 62,64 via the fluid outlet channel, i. the fluid inlet channel 70 first opens into the fluid outlet channel 72.
- FIG. 3d shows a schematic top view of a section of a fluidic mode 50 according to an exemplary embodiment of the present invention.
- channels eg capillary
- FIGS. 4a to 4f respectively show a schematic top view of the fluidic module 50 shown in FIG. 3b and fluid levels in the fluidic module 50 at six different points in time. It should be noted, however, that the following description is also applicable to the fluidic modules 50 shown in FIGS. 3a and 3b to 3e.
- the fluidic module 50 shown in Figs. 4a-4f may be used to alicjuoticrcn liquid.
- individual volumes of the liquid to be aliquoted
- the different channels will not be exactly the same for further switching.
- FIGS. 4a to 4f show the fluid level in the fluidic module 50 at six different points in time.
- the fluidic module 50 for example, by the drive 20 described in reference to FIGS. 1 and 2, in a first phase (Fig, 4a to 4c) applied to a first rotational frequency fi, while the fluidic module 50 in a second phase (Fig 4d to 41) is acted upon by a second rotational frequency f 2 .
- the second rotational frequency f 2 is smaller than the first rotational frequency fi, fi> f 2 .
- FIG. 4a shows a schematic top view of the fluid module 50 and a fluid level in the fluidic module 50 at a first time.
- 4b shows a schematic plan view of the fluidic module 50 and a
- Liquid level in the fluidic module 50 at a second time At the second point in time, the fluidic module 50 continues to be acted upon by the first rotational frequency f i, whereby the fluid is centrifugally conveyed via the fluid inlet passages 70 1 to 70 n
- FIG. 4c shows a schematic plan view of the fluidic module 50 and a fluid level in the fluidic module 50 at a third time.
- FIG. 4d shows a schematic plan view of the fluidic module 50 and a fluid level in the fluidic module 50 at a fourth time.
- FIG 4e shows a schematic top view of the fluidic module 50 and a fluid level in the fluidic module 50 at a fifth time.
- FIG. 4f shows a schematic plan view of the fluidic module 50 and a fluid level in the fluidic module 50 at a sixth time.
- the fluidic module 50 can be filled under centrifugation (see FIG. 4a).
- the hermetically enclosed volume V of the compressible medium eg air volume
- FIG. 5 shows a schematic plan view of a section of a fluidic module 100 according to an embodiment of the present invention.
- the fluid inlet channels 701 to 70 4 of the first half of measuring chambers 60i to 6O4 are connected to a first inlet region 841 of the fluidic module 50 via a first distributor channel 80 and a first radial channel 821, while the fluid inlet channels 70 are 5 to 70 g of the second half of the measuring chambers 6O5 to 60g are connected via a second distribution channel 80 2 and a second radially extending channel 82 2 to a second inlet region 84 2 of the fluidic module 50.
- Fluid outlet passages 70s to 70s of the second half of metering chambers 60 to 60s are respectively connected in pairs to a (downstream) chamber 861 to 864.
- first fluid exhaust passage 72 j and the fifth fluid exhaust passage 72s are connected to the first (downstream) chamber 861, while the second fluid exhaust passage 72 2 and the sixth fluid exhaust passage 72 6 are connected to the second (downstream) chamber 862, while the third fluid exhaust passage 72 3, and the seventh Fluidausiasskanal 72y are connected to the third (downstream) chamber 863, and during the fourth and the eighth Fluidausiasskanal 72 Fluidausiasskanal 72s to the fourth
- the fluidic module 50 can be used for mixing liquids by adding a first liquid into the first inlet region 841 and adding a second liquid to the second emissive region 84 2 , so that in reducing the rotational frequency and the associated expansion of the compressible Medium in the (downstream) chambers 861-864 each one Aliquot of the first liquid and an aliquot of the second liquid is centrifugally driven.
- FIG. 5 The mode of operation of the fluidic module 50 shown in FIG. 5 will be explained in more detail below with reference to FIGS. 6a to 6e, which show fluid levels in the fluidic module 50 at five different points in time.
- FIG. 6a shows a schematic plan view of a partial section of the fluidic module 50 and a fluid level in the fluidic module 50 at a first time.
- 6b shows a schematic plan view of the partial section of the fluidic module 50 and a fluid level in the fluidic module 50 at a second time.
- the fluidic module 50 continues to be acted upon by the first rotational frequency fi, whereby the fluid is centrifugally driven via the fluid inlet channels 70i to 70 4 into the measuring chambers 60 s to 60 4 , resulting in the liquid level shown in Fig. 4b.
- 6c shows a top view of the partial section of the fluidic module 50 and a fluid level in the fluidic module 50 at a third time.
- the fluidic module 50 continues to be acted upon by the first rotational frequency fi, whereby the fluid is further centrifugally driven via the fluid inlet channels 70 1 to 70 4 into the measuring chambers 60 1 to 6O 4 , so that at the third time already liquid over the Fluid overflows 68 1 to 68 4 from the measuring chambers 60] to 60 4 in the compression chambers 66 1 to 66 4 passes.
- FIG. 6d shows a schematic plan view of the partial section of the fluidic module 50 and a fluid level in the fluidic module 50 at a fourth time.
- FIG. 6e shows a schematic plan view of the partial section of the fluidic module 50 and a fluid level in the fluidic module 50 at a fifth time.
- FIGs. 6a to 6d show an exemplary procedure of the aliquoting process.
- a first fluid flows at a high rotational frequency (centrifugation) of eg 90 Hz from an inlet region 84 j through a radially outward channel 82 j via a manifold 80] into four chambers 60j to 60 4 with a volume of about 5 ⁇ .
- the fluid inlet channel 70j to 70 4 to the measuring chamber 60 [to 60 4 can be designed so that it attaches to the upper end of the measuring chamber 6Qj to 60.i (not absolutely necessary).
- the fluid outlet channel 72] to 72 4 is then hermetically sealed. Further inflowing liquid then compresses (at least partially) the enclosed compressible medium (eg gas volume) in the compression chamber (pressure chamber) 66. to 664 (see FIG. 6b).
- a compression chamber (pressure chamber) 66] to 66 4 is connected, in which a defined volume of the compressible medium (eg air volume) is included. Excess liquid flows into the drainage areas of the individual compression chambers (pressure chambers) 661 to 664 until the inlet area 84; is emptied (not absolutely necessary). Now there is a balance between centrifugal force and pneumatic back pressure.
- a defined volume of the compressible medium eg air volume
- the fluid inlet channel (filling channel) attaches 70j to 70 4 at the upper end of the measuring chamber 601 to 60 4 , the liquid remains in the fluid inlet channel en 701 to 70 4 and is not divided into the measuring chambers 601 to 6O4.
- the accuracy of the Aliquotiervorgangs becomes particularly high when the fluid inlet channels 701 to 70 4 and the fluid outlet channels 721 to 72 4 are small compared to the measuring chamber 6O1 to 60 4th Measurement inaccuracies arise, for example, in that different starting conditions, such as, for example, input volume, manufacturing tolerances, etc., lead to differences in the level during the dimensioning step. As a result, the dimensional accuracy is directly related to the dimensions of the fluid inlet channels 701 to 70 4 and the fluid outlet channels 72 j to 72 4 together. Smaller dimensions lead to a more accurate measurement. Further measuring errors occur during the emptying of the measuring chambers (measuring cavities) 60j to 6O4.
- the fluid outlet channel (eg siphon) 72] to 72 4 can have a much smaller fluidic resistance than the sum of the resistances of the fluid inlet channels 70j to 70 4 , and on the other hand the fluid inlet channel (filling channel) 70] to 70 4 at a radially inner point of the measuring chamber 60] to 6O4 set.
- the measuring chambers 6O1 to 6O4 are not in fluidic communication, at least during a certain period of emptying. During this time, any pressure differences do not generate any additional errors.
- the aliquoting concept described above may also be used by small changes for aliquoting liquids from radially outside to radially further inward (radially outwardly aliquoting).
- the siphon 72] to 72 4 can be replaced by an inwardly leading fluid outlet channel 72 s to 72 g (see FIG. 5).
- the input volume of the liquid per measuring chamber (Aliquotierhunt) 60] to 6O4 be designed so that (virtually) the entire liquid in the measuring chamber 6O1 to 6O4 and all liquid in the fluid outlet channel 72 to 72g in a subsequent, further inside chamber 861 to 864 is transferred.
- the overall structure may look like an aliquot of a first aliquoting structure (first half) from measuring chambers 605 to 6O4) and an aliquot from a second aliquoting structure (second half of measuring chambers 6O5 to 60g) into a common chamber (cavity) 86 1 to 86 4 are transferred.
- the following (cavity) 86 1 to 86 4 may be a mixing chamber 86 j to 86 4 . In this case, potentially the complete circumference about the axis of rotation can be used for fluidic structures.
- the Aliquotiermai presented herein is also suitable in the general case for aliquoting on a multi-layered disk.
- the disk can be designed so that the liquid for filling over a Lü Indian position A guided and thereby potentially can be passed by crossing channels.
- the chamber is now emptied via a channel on the fluidic layer B.
- This channel can be both a siphon (eg 721 to 72 4 ), as well as another channel which eg leads radially inwards (eg 725 to 72 g ). Otherwise, the aliquoting process takes place as described with respect to radially internal aliquoting. This offers z.
- Example 10 when the number of aliquots for the radially inner liquid is high (> 10) and thus the juxtaposed siphon structures (72] to 72 4 ) can no longer be introduced space efficient.
- such an embodiment is advantageous as soon as more than two liquids are aliquoted into a chamber (cavity) 86 1 to 86 4 .
- the fluidic connection can be realized either in the measuring chamber 60 1 to 60g itself, or in a specially provided for fluidic breakthrough.
- each measuring chamber 601 to 60s can be provided with its own fluidic breakdown, or a plurality of measuring chambers 60j to 60g can have a fluidic breakdown together.
- Embodiments of the present invention enable a simultaneous, parallel aliquoting of two fluids on a fluidic layer.
- the fluidic structure described herein is still functional even with heavy overfilling (> 50% of the measured volume), in contrast to known aliquoting concepts
- the aliquoting concept described herein allows aliquoting and connecting two fluids on a fluidic layer
- the liquid can be supplied to the measuring chambers from the outside, and moreover, the liquid can be further processed thereafter.
- at least two aliquots can have a waste cavity connected to this measurement chamber (directly or via a channel), which can be used, for example, for individual quality control of each individual aliquot by reading the fill level in the waste cavity.
- the measurement chambers are separated by a fluidic resistance that is higher than the channel used to advance the aliquots.
- the fluidic structure can be designed such that when filling the measuring chamber a compressible medium (eg air) is compressed in the compression chamber. Furthermore, the fluidic structure can be designed such that the fluid inlet of the measuring chamber has a fluidically higher resistance than the fluid outlet of the measuring chamber. Furthermore, the fluidic structure can be designed such that at least two aliquots have a waste cavity connected to this measuring chamber (directly or via a channel). In addition, the fluidic structure may be designed such that in the volume-determining measuring step, the meniscus is only in channels which are small in comparison to the measuring chamber.
- a compressible medium eg air
- the fluid inlet of the measuring chamber has a fluidically higher resistance than the fluid outlet of the measuring chamber.
- the fluidic structure can be designed such that at least two aliquots have a waste cavity connected to this measuring chamber (directly or via a channel).
- the fluidic structure may be designed such that in the volume-determining measuring step, the meniscus is only in channels which are small in comparison to the measuring chamber.
- the fluidic structure can be designed such that the volume-determining measuring chamber is filled to more than 50% (70%, 90%, completely). Furthermore, the fluidic structure can be designed such that during the Emptying an interface between the compressible medium and the liquid (eg air-water interface) moves radially inward. In addition, the fluidic structure can be designed such that at least one measuring chamber is filled from radially further inwards and is emptied radially further outward.
- the fluidic module 100 comprises a fluid inlet channel 102, at least one measuring chamber 104j to 104, with a fluid inlet 106j to 106j and a fluid outlet 1081 to 108 ;, at least one fluid resistance element 110j to 110 ;, and an overflow 1 12, wherein the fluid inlet channel 102 with the at least one measuring chamber 104i to 104; via the fluid inlet 106] to 106; and is connected to the overflow 1 12, and wherein the at least one fluid resistance element 1 10j to 1 10, with the at least one measuring chamber 104 5 to 104; is connected via the fluid outlet 108i to 108th
- the fluidic module 100 is designed such that during a rotation of the fluidic module about a Rotationszentram 1 14 and thereby conditioned centrifugal fluid is centrifugally driven via the fluid inlet channel 102 into the at least one measuring chamber 104i to 104j, said at least one fluid resistance element 1 10]
- the fluidic module 100 can furthermore be designed such that when the rotational frequency increases (eg by at least a factor of 2 (or 3, 4, 5, 7, 10)) and a consequent increase in the centrifugal pressure, the pressure in the at least one measuring chamber 104 i to 104j existing liquid faster over the at least one variable fluid resistance element 1 10t to 1 10j from the measuring chamber 104i to 104; is driven as before the increase in the rotational frequency.
- the rotational frequency increases (eg by at least a factor of 2 (or 3, 4, 5, 7, 10)) and a consequent increase in the centrifugal pressure
- the pressure in the at least one measuring chamber 104 i to 104j existing liquid faster over the at least one variable fluid resistance element 1 10t to 1 10j from the measuring chamber 104i to 104; is driven as before the increase in the rotational frequency.
- the rotational frequency does not have to be increased so that in the at least one measuring chamber 104] to 104; existing fluid is centrifugally driven from the same.
- the centrifugal pressure increases, so that in the at least one measuring chamber 104] to 104; existing fluid can be driven faster from the same.
- the fluidic module 100 may include an inlet portion 116 connected to the fluid inlet channel 102.
- a first portion 102a of the fluid inlet channel 102 may be connected to the inlet portion 16 and extend radially further inwardly radially further outward.
- a second section 102b of the fluid inlet channel 102, to which the at least one measuring chamber 104] to 104j may be connected, may extend laterally (ie have a uniform radial distance to the rotation center 1 14).
- a third section 102 c of the fluid inlet channel 102 may extend further radially outward radially further outward and be connected to the overflow 12.
- the fluidic module 100 can have at least one further chamber 1 181 to 1 184 which is connected to an outlet of the at least one variable
- Fig. 7 shows a fluidic structure 100 (Abmess Cook or Aliquotier Modell) with an inlet portion 1 16, a filling and overflow channel 1 2, a measuring chamber 1041 to 104, a valve l lOi to 1 10, and an overflow 1 12th wherein the valve 1 10] to 110; does not completely close, but is continuously flowed through by liquid.
- a fluidic structure 100 (Abmess Cook or Aliquotier Modell) with an inlet portion 1 16, a filling and overflow channel 1 2, a measuring chamber 1041 to 104, a valve l lOi to 1 10, and an overflow 1 12th wherein the valve 1 10] to 110; does not completely close, but is continuously flowed through by liquid.
- the process of splitting the liquid would be faster than at least 10x (better 100x) faster than continuing the liquid.
- the volume accuracy of the metering is ensured without a valve 1100 to 110; to require which completely prevents the flow of liquid during the filling process.
- aspects have been described in the context of a device, it will be understood that these aspects also constitute a description of the corresponding method, so that a block or a component of a device is also to be understood as a corresponding method step or as a feature of a method step.
- aspects related to or as related to one another may be performed by a hardware device (or using a hardware device), such as a microprocessor, a programmable computer, or the like an electronic circuit. In some embodiments, some or more of the most important method steps may be performed by such an apparatus.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013219929.5A DE102013219929B4 (de) | 2013-10-01 | 2013-10-01 | Fluidikmodul, Vorrichtung und Verfahren zum Aliquotieren einer Flüssigkeit |
| PCT/EP2014/070018 WO2015049112A1 (de) | 2013-10-01 | 2014-09-19 | Fluidikmodul, vorrichtung und verfahren zum aliquotieren einer flüssigkeit |
Publications (2)
| Publication Number | Publication Date |
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| EP3052233A1 true EP3052233A1 (de) | 2016-08-10 |
| EP3052233B1 EP3052233B1 (de) | 2024-03-13 |
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| EP14772107.0A Active EP3052233B1 (de) | 2013-10-01 | 2014-09-19 | Vorrichtung und verfahren zum aliquotieren einer flüssigkeit |
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| EP (1) | EP3052233B1 (de) |
| JP (1) | JP6418581B2 (de) |
| CN (1) | CN105939784B (de) |
| CA (1) | CA2925839C (de) |
| DE (1) | DE102013219929B4 (de) |
| WO (1) | WO2015049112A1 (de) |
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| DE102018212930B3 (de) * | 2018-08-02 | 2019-11-07 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Vorrichtung und Verfahren zum Leiten einer Flüssigkeit durch ein poröses Medium |
| EP3870369A4 (de) | 2018-10-26 | 2022-11-09 | Neofluidics, LLC | Fluidische vorrichtungen mit reaktionsmulden und verengungskanälen und verwendungen davon |
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| WO2004113871A2 (en) * | 2003-06-19 | 2004-12-29 | Nagaoka & Co., Ltd. | Fluidic circuits for sample preparation including bio-discs and methods relating thereto |
| WO2006062149A1 (ja) * | 2004-12-08 | 2006-06-15 | Matsushita Electric Industrial Co., Ltd. | 生体サンプル分析用プレート |
| JP2008083017A (ja) * | 2006-09-26 | 2008-04-10 | Taiyo Yuden Co Ltd | 液体試料の流路を有する分析用媒体及び液体試料を流動させる方法 |
| KR100858091B1 (ko) * | 2007-04-24 | 2008-09-10 | 삼성전자주식회사 | 시료 분배 구조를 갖는 원심력 기반의 미세유동장치 및이를 포함하는 미세유동시스템 |
| EP2072131B1 (de) | 2007-12-13 | 2015-04-22 | Roche Diagnostics GmbH | Mikrofluidisches Element zur Durchmischung einer Flüssigkeit in einer Reagenz |
| DE102008003979B3 (de) | 2008-01-11 | 2009-06-10 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Fluidikvorrichtung, Fluidikmodul und Verfahren zum Handhaben einer Flüssigkeit |
| US7854893B2 (en) * | 2008-03-28 | 2010-12-21 | Panasonic Corporation | Analysis device and an analysis apparatus using the analysis device |
| JP5376427B2 (ja) * | 2008-07-17 | 2013-12-25 | パナソニック株式会社 | 分析用デバイス |
| DE102009050979B4 (de) * | 2009-10-28 | 2011-09-22 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Vorrichtung und Verfahren zum Steuern eines Flüssigkeitsflusses und Vorrichtung zum Verschließen eines Entlüftungskanals |
| DE202011108189U1 (de) * | 2011-06-08 | 2011-12-13 | Albert-Ludwigs-Universität Freiburg | Vorrichtung und Fluidikmodul zum Erzeugen einer Verdünnungsreihe |
| DE102011083920B4 (de) * | 2011-09-30 | 2018-07-19 | Albert-Ludwigs-Universität Freiburg | Verfahren und vorrichtung zum erzeugen von fluidisch voneinander separierten teilvolumina einer flüssigkeit |
| DE102012202775B4 (de) * | 2012-02-23 | 2016-08-25 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Fluidikmodul, vorrichtung und verfahren zum pumpen einer flüssigkeit |
| DE102013203293B4 (de) * | 2013-02-27 | 2016-01-21 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Vorrichtung und Verfahren zum Leiten einer Flüssigkeit durch einen ersten oder zweiten Auslasskanal |
| DE102013218978B3 (de) * | 2013-09-20 | 2014-11-06 | Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | Vorrichtung und Verfahren, die Rückschlüsse über die Viskosität einer Probe ermöglichen |
-
2013
- 2013-10-01 DE DE102013219929.5A patent/DE102013219929B4/de active Active
-
2014
- 2014-09-19 JP JP2016546154A patent/JP6418581B2/ja active Active
- 2014-09-19 CA CA2925839A patent/CA2925839C/en active Active
- 2014-09-19 WO PCT/EP2014/070018 patent/WO2015049112A1/de not_active Ceased
- 2014-09-19 CN CN201480065592.3A patent/CN105939784B/zh active Active
- 2014-09-19 EP EP14772107.0A patent/EP3052233B1/de active Active
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2016
- 2016-04-01 US US15/089,317 patent/US10882039B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3052233B1 (de) | 2024-03-13 |
| CA2925839C (en) | 2019-04-09 |
| WO2015049112A1 (de) | 2015-04-09 |
| CN105939784A (zh) | 2016-09-14 |
| US10882039B2 (en) | 2021-01-05 |
| CA2925839A1 (en) | 2015-04-09 |
| DE102013219929B4 (de) | 2015-07-30 |
| DE102013219929A1 (de) | 2015-04-02 |
| JP2016533511A (ja) | 2016-10-27 |
| JP6418581B2 (ja) | 2018-11-07 |
| CN105939784B (zh) | 2018-09-11 |
| US20160214104A1 (en) | 2016-07-28 |
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