EP1833598A1 - Verfahren und vorrichtung zur dosierung und durchmischung kleiner fl]ssigkeitsmengen - Google Patents
Verfahren und vorrichtung zur dosierung und durchmischung kleiner fl]ssigkeitsmengenInfo
- Publication number
- EP1833598A1 EP1833598A1 EP05818698A EP05818698A EP1833598A1 EP 1833598 A1 EP1833598 A1 EP 1833598A1 EP 05818698 A EP05818698 A EP 05818698A EP 05818698 A EP05818698 A EP 05818698A EP 1833598 A1 EP1833598 A1 EP 1833598A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reservoir
- liquid
- metering
- filling
- reaction
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
- B01F31/86—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with vibration of the receptacle or part of it
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/30—Micromixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7172—Feed mechanisms characterised by the means for feeding the components to the mixer using capillary forces
-
- 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
-
- 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
- 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
-
- 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
- B01L2400/0406—Moving fluids with specific forces or mechanical means specific forces capillary forces
-
- 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
- B01L2400/0433—Moving fluids with specific forces or mechanical means specific forces vibrational forces
-
- 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
- B01L2400/0677—Valves, specific forms thereof phase change valves; Meltable, freezing, dissolvable plugs; Destructible barriers
-
- 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
- B01L2400/0688—Valves, specific forms thereof surface tension valves, capillary stop, capillary break
-
- 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
- B01L2400/0694—Valves, specific forms thereof vents used to stop and induce flow, backpressure valves
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/10—Composition for standardization, calibration, simulation, stabilization, preparation or preservation; processes of use in preparation for chemical testing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/25—Chemistry: analytical and immunological testing including sample preparation
- Y10T436/2575—Volumetric liquid transfer
Definitions
- the invention relates to a method for metering and mixing small amounts of liquid, a device and an apparatus for carrying out the method and a use.
- Diagnostic assays are now largely automated.
- defined volumes of sample liquid and reagents are pipetted into a cuvette or into the well of a microtiter plate and mixed.
- a first reference measurement is carried out in which, for example, the optical transmission through the cuvette is determined.
- a second measurement of the same parameter is made. By comparing the two measured values results in the concentration of the sample with respect to a particular ingredient or even the presence of the ingredient.
- Typical volumes are in the sum of a few hundred microliters, whereby necessary mixing ratios of sample to reagent between 1: 100 and 100: 1 can occur.
- reagents may be provided for mixing with a sample.
- high throughput instruments which are typically found in specialized laboratories, there are also efforts to make assays decentralized and without much instrumental effort. It would be desirable if the recently introduced "lab-on-a-chip" technology could be used, in which the processing of liquids integrated on or in a chip by can be performed. Assay times of less than one hour are desirable.
- microfluidic systems are used in which liquid is moved by electro-osmotic potentials, see, for example, Anne Y. Fu, et al. "A micro-fab- ricated fluorescence-activated cell sorter", Nature Biotechnology Vol. 17, November 1999, p. 1109 ff.
- a method for mixing liquids in the microliter range is described in DE 103 25 307 B3, in which small volumes of liquid are mixed in microtiter plates with the aid of sound-induced flow.
- Another method for generating movement in small amounts of liquid on a solid surface describes DE 101 42 789 Cl.
- a liquid is mixed with the help of surface sound waves or mixed several liquids together.
- an amount of liquid is brought to a region of a substantially planar surface whose wetting properties differ from the surrounding surface in such a way that the liquid preferably remains on it, being held together by its surface tension , Movement of the amount of liquid can be generated by the momentum transfer of a surface acoustic wave to the liquid.
- the integration of metering and mixing of sample and reagents in a low-cost lab-on-the-chip system is problematic.
- a homogeneous mixing of different such small amounts of liquid is difficult to implement.
- the wetting properties of the surface can determine a volume, as described in DE 100 55 318 A1.
- the volumes are defined by hydrophilic and hydrophobic regions over the wetting angle on a substantially smooth surface. If several volumes have been defined in this way which are to be reacted, the volumes are moved toward one another in order to achieve this.
- channels of defined cross-section which are filled with liquid capillary. If the liquid is an aqueous solution, then at the end of the channel a hydrophobic barrier is attached, which can not be capillary filled. Furthermore, there is a lateral branch on this channel with a likewise hydrophobic surface, which can not be capillary filled.
- the cross-section and length of the channel between the hydrophobic barrier and the hydrophobic branch now define a volume which can be separated and moved by pneumatic pressure through the branch (Bums et al., An integrated nanoliter DNA analysis device, Science 282, 484 (1998) )).
- liquid in the present text includes, among others, pure liquids, mixtures, dispersions and suspensions and
- Liquids containing solid particles such as biological material.
- dosing and mixing liquids may also be two or more solutions that differ only in ingredients dissolved therein that are to be reacted.
- the object of the present invention is to provide a method and a device with the aid of which a precise metering of liquid quantities in a large dynamic range is easy to carry out and which enable complete mixing of the liquids.
- the method should be feasible in a compact lab-on-the-chip system.
- a metering reservoir is completely filled with a first liquid which communicates with a reaction reservoir via at least one connecting structure, wherein the connecting structure is preferably dimensioned in relation to the reservoir such that the surface tension of the first liquid prevents entry into the reaction reservoir.
- the cross-section of the connection structure may be chosen to be smaller than the cross-section of the reaction reservoir.
- the reaction reservoir is completely filled with a second liquid, so that the second liquid at the connection structure comes into contact with the first liquid.
- a flow pattern is generated in the liquid in or on the reaction reservoir, which leads to thorough mixing of the liquids, the flow pattern being maintained until complete homogenization of the liquids.
- a laminar flow pattern is generated.
- the laminar flow pattern can be generated directly in the reaction reservoir. It is also possible that the laminar flow is generated in at least one connecting structure in the direction of the reaction reservoir and in this way acts in the reaction reservoir. Finally, it is also possible to excite the laminar flow in the metering reservoir with a corresponding geometric configuration, so that it acts on the connection structure in the reaction reservoir.
- the amount of the first liquid to be metered is determined in the metering reservoir.
- the first liquid is prevented from entering the reaction reservoir.
- the surface tension prevents the liquid from entering the reaction reservoir. Only when the first liquid When it comes into contact with the second liquid which has been brought into or onto the reaction reservoir, a liquid exchange can take place. Due to the smaller cross section of the connecting channel structure, the liquid exchange due to diffusion is negligible. Only by generating a corresponding flow pattern in the reaction reservoir effective mixing is effected.
- the amount of the second liquid is determined by the size of the reaction reservoir.
- the mixing ratio between reagents and sample liquid may be set between 1: 100 to 100: 1.
- the flow pattern can be generated by irradiation of sound waves into the liquid on or in the second reservoir or in the direction of the second reservoir.
- surface acoustic waves can be used, which can be generated in a conventional manner by means of an interdigital transducer on a piezoelectric chip which is attached to the device. Either the momentum transfer of the surface acoustic waves is used directly or with the help of the surface acoustic wave generated sound waves.
- the term surface acoustic waves in the present text also includes interfacial sound waves at the interfaces between two solids.
- the reservoirs and the connection structures can be designed in three dimensions or two dimensions. So can the reservoirs and Connection structures be correspondingly shaped recesses in an O ber Assembly. Other configurations are correspondingly shaped cavities.
- the reservoirs and connecting structures are formed by correspondingly shaped areas of a surface, which are wetted by the liquids more preferably than the surrounding areas of the surface.
- surfaces that are hydrophilic compared to their environment are selected for the reservoirs and interconnect structures. Such wetting-modulated surfaces are described, for example, in DE 100 55 318 A1. The liquids are held together on the preferably wetted areas by their surface tension as drops.
- connection structure may be a correspondingly dimensioned opening between the metering reservoir and the reaction reservoir.
- a particularly precise process procedure makes use of the capillary force in a connection capillary structure, which is wetted by the first liquid and is removed by the capillary forces from the dosing reaction. servoir is filled. At the point of entry of the connecting capillary structure into the reaction reservoir, the capillary forces abruptly decrease due to the enlarged cross section, so that leakage of the first liquid from the connecting capillary structure into the reaction reservoir is prevented. Only when the second liquid is introduced into the reaction reservoir or is applied to the reservoir surface, does the second liquid enter into contact with the first liquid, so that thorough mixing can take place.
- the reservoirs are filled by filling openings in an embodiment of the metering, which are preferably in the upper end of the reservoir.
- the metering reservoir can be formed by a correspondingly dimensioned volume.
- a reservoir capillary structure is used as the metering reservoir, which has at least two openings along its extent. Through an opening, the capillary structure can be filled. Liquid enters through the first opening and, driven by the capillary force, moves to the second opening.
- the reservoir capillary structure is selected as a capillary structure such that the liquid front of the moving liquid occupies the entire cross-section of the capillary structure. Apart from the filling opening and the second opening, no further openings are opened in the system. At the second opening the liquid stops its movement.
- an exact volume in the reservoir capillary structure is defined by the distance between the two ports to allow accurate metering.
- two second openings arranged symmetrically with respect to the filling opening are used. The liquid volume of the liquid metered in such a reservoir capillary structure then corresponds to the distance between these two second openings.
- a further development uses a reservoir capillary structure with a plurality of such selectable openings, which are opened depending on the desired metering volume of the first fluid. If further openings are opened from the opening used as the filling opening, the liquid can enter these openings and occupy a larger volume.
- the metering reservoir in this process corresponds to the volume of the reservoir capillary structure filled with the first fluid.
- the remaining part of the reservoir capillary structure is part of the reaction reservoir.
- open filling structures can be used, which are connected via feeds to the metering reservoir or the reaction reservoir.
- the respective liquid can be introduced manually or automatically, for example by means of a pipette. Through the respective supply, the liquid enters the respective reservoir.
- the filling structures are also selected accordingly.
- the feeds may then be, for example, appropriately sized channels.
- the feed or the feeders are selected as a capillary structure. The liquid to be introduced then moves independently from the filling structure into the respective reservoir due to the capillary forces.
- Another advantageous embodiment of the method according to the invention employs a plurality of preferably differently sized metering reservoirs, which communicate with the reaction reservoir via connection structures.
- the metering reservoirs are connected to a filling opening.
- the connecting structures between the individual metering reservoirs and the reaction reservoir can initially be closed in one embodiment and be opened to select the desired metering reservoir.
- the desired metering reservoir with the desired volume is selected by closing the remaining connection structures to the other metering reservoirs.
- connection structures are initially closed, wherein the desired connection structures are melted before use in order to establish a connection.
- connection structures are initially open and the unnecessary connection structures are closed by a melting process before use.
- connection between the two liquids is made via a small "bridge drop", which is brought between the two liquids and creates a liquid bridge.
- the bridge drop has a smaller volume than both the first and the second amount of liquid.
- connection structure between a metering reservoir and the reaction reservoir.
- the fluid exchange - driven for example by sound waves - take place in a circuit until a complete homogenization of the liquids has occurred.
- the inventive method is not limited to the metered addition of a liquid amount to a second amount of liquid.
- a device according to the invention with which the method according to the invention can be carried out has at least one metering reservoir for a first quantity of liquid. Furthermore, a reaction reservoir for a second amount of liquid and at least one connection structure between the two reservoirs is provided. The connection structure is preferably dimensioned in relation to the reservoir such that the first liquid can not enter the reaction reservoir due to its surface tension. Finally, the device according to the invention has a device for generating preferably a laminar flow pattern for the mixing of liquid in the reaction reservoir.
- a preferred embodiment has at least one sound wave generating device for irradiating sound waves into the reaction reservoir or in the direction of the reaction reservoir.
- the at least one sound wave generating device is formed by a surface acoustic wave generating device, in particular by an interdigital transducer on a piezoelectric chip.
- the reservoirs and the at least one connecting structure may be formed as depressions or cavities in a solid body.
- the reservoirs and connecting structures are formed by correspondingly shaped regions of a surface, which are wetted by the liquids more preferably than the surrounding regions of the surface. che. Such wetting-modulated surfaces are described, for example, in DE 100 55 318 A1.
- a three-dimensional embodiment of the metering device according to the invention may comprise wells in a solid, which are closed by a lid to form the reservoir or connection structure.
- the lid can be made in a simple manner from a film, preferably made of plastic.
- An apparatus according to the invention with which the method according to the invention can be carried out using a device according to the invention comprises a receptacle for a device according to the invention.
- the at least one device for generating a flow pattern is electrically contacted.
- the apparatus of the invention further comprises controllable filling devices, for. As pipettes or dispensers, which are arranged in the receptacle inserted device above the filling structures.
- the apparatus has a control for controlling the timing of a protocol, which performs the control of the device for generating the flow pattern and the filling devices.
- Preferred embodiments include opening devices for opening individual filling structures, ventilation openings or barrier structures or devices for closing individual barrier structures.
- the apparatus of the invention can also fulfill other functions with appropriate equipment, if z. B. a heater for Temperature control is provided. Finally, the z. B. electrical or optical evaluation with integrated.
- the method according to the invention can be carried out simply and automatically. Disposable parts can be used without problems as devices according to the invention for integrated metering and mixing.
- the method according to the invention, the device according to the invention and the apparatus according to the invention can be used particularly effectively for the metering and mixing of biological fluids in which a precise metering of very small amounts of liquid is necessary.
- FIG. 1 is a plan view of a metering device according to the invention in the open state
- FIG. 1 shows a cross section in the direction of view II through the embodiment of Fig. 1, 3 is a plan view of a further embodiment of a metering device according to the invention
- Fig. 5 is a plan view of a fourth embodiment of the metering device according to the invention.
- FIG. 6a-6f different stages in the implementation of a method according to the invention with this embodiment.
- Fig. 1 shows a plastic part 5 with chambers 1, 3.
- the plastic part 5 can be produced for example by injection molding.
- the cover of the chamber is effected by a thin laminated plastic film 2, which is visible in Fig. 2 and not shown in Fig. 1, in order to illustrate the inner workings of the plastic part 5.
- Reference numeral 13 denotes the wall between the chambers 1 and 3.
- Fig. 1 the layers of the filling openings 7 and 9 are indicated, which are provided in the plastic film 2, which is not shown in Fig. 1, however.
- an acoustic chip 15 which may be, for example, a piezoelectric solid-state chip on which an interdigital transducer for generating surface acoustic waves is applied in a conventional manner.
- the interdigital transducer is designed in such a way that the surface sonically allow a Schallwellenabstrahlung in the reaction chamber 1.
- the emission of sound waves into a liquid volume separated by a solid from the surface acoustic wave generating interdigital transducer is described in DE 103 25 307 B3.
- the acoustic chip 15 can also be provided on the film 2 or in a side region.
- the acoustic chip 15 is connected via electrical connections, not shown, to an AC voltage source with which an AC voltage of a frequency of a few 10 MHz can be generated in order to produce surface acoustic waves with the interdigital transducer, which lead to the emission of sound waves into the reaction chamber 1.
- acoustic chip 15 The location of the acoustic chip 15 is indicated in Fig. 1, although the chip would not be visible in this view per se, as in the embodiment shown it is attached to the underside of the device.
- the acoustic chip is drawn in the form of parallel lines which are only intended to schematically indicate the alignment of the individual finger electrodes of the interdigital transducer on the piezoelectric chip 15.
- the emission direction of the surface acoustic waves of such an aligned interdigital transducer is perpendicular to the alignment of the finger electrodes.
- the necessary size of the serving as a reaction reservoir chamber 1 depends on the frequency of the sound waves used. The smallest
- Expansion should be much larger than the wavelength of the sound used.
- the extent of the reaction chamber 1 in the direction of propagation of the sound waves should be approximately one order of magnitude greater than the extent of the bottlenecks 11.
- the smallest extent of the reservoirs is, for example, 1 mm to 10 mm in the case of ner sound wavelength of, for example, 100 microns.
- the total length of the channel system is a few centimeters.
- the filling openings 7, 9 are at least an order of magnitude smaller than the reaction chamber 1.
- the device according to the invention of this embodiment is used as follows.
- the reaction reservoir comprises, for example, 100 .mu.l or 150 .mu.l while the metering reservoir holds 5 .mu.l.
- Such fluid volumes are particularly characteristic of many diagnostic applications.
- the metering reservoir 3 is filled by the filling hole 7 with a first liquid, which can be done, for example, by capillary action.
- the liquid will remain at the bottlenecks 11, since here the capillary force is abruptly lower because of the larger diameter of the reservoir 1.
- the reservoir 1 is filled through the filling holes 9 with a second liquid.
- a possible supernatant of liquid on the respective filling holes 7, 9 is not critical.
- the liquid of this supernatant does not participate in the following mixing process for geometrical reasons, in particular when the following mixing process is effected by a laminar flow pattern.
- the volumes of the two liquids have now been defined geometrically, without the need for high precision of the filling devices used, for example pipettes.
- the liquids are in contact. Diffusion takes place due to the narrow cross-section of the bottlenecks 11 only to a negligible extent.
- a homogeneous mixing of the entire liquid quantities is achieved with the aid of the acoustic chip 15.
- By applying an AC voltage to the acoustic chip acoustic energy is radiated into the defined volumes of the liquids and a laminar flow pattern is generated.
- the liquids or their ingredients are mixed and, if necessary, reacted.
- the result of this reaction can be optically or electrically read. It is advantageous that the filling holes 7, 9 do not have to be closed.
- the metering and mixing of the liquids thus takes place in a cost-effective optionally configured as a disposable cartridge device 5.
- the dosing is also very simple. Even if it comes to a supernatant on the filling holes, this will not participate in the mixing reaction for geometric reasons and / or due to the laminar flow pattern used.
- Fig. 3 shows another embodiment of a metering device according to the invention. Shown here is the section of a plastic body 105 which contains the metering device, which likewise comprises recesses in the plastic structure 105. Visible is the reaction reservoir 101 with filling holes 109. 103 shows a capillary structure with a plurality of openings, wherein the opening 107 serves as a filling opening. The capillary structure 103 represents a metering capillary structure, which communicates with the reaction reservoir 101 via connection capillary structures 111. The entire structure is also finished with a plastic film. In this embodiment too, the openings 107, 109, 121 and 122, which are not visible in the opened representation, are indicated in order to represent their relative position. Also indicated in its position is arranged below the device and therefore not actually visible in the representation acoustic chip 115 with an interdigital transducer. The acoustic chip 115 corresponds to the chip 15 described with reference to FIGS. 1 and 2.
- the capillary structure 103 thereby causes the front of the liquid to fill the entire cross section of the capillary structure 103. If no further vent holes are opened, a back pressure builds up, which leads to the
- the residual volume in channel 103 and the connection capillary structures 111 can be filled by filling via the reaction reservoir 101 through the then openable openings 109. The residual volume of the channel 103 then counts to the reaction reservoir.
- the characteristic dimensions of an embodiment according to FIG. 3 correspond to the characteristic dimensions of the embodiment of FIGS. 1 and 2.
- the setting of different mixing ratios in a simple manner possible Depending on how much of the first liquid of the second liquid is to be added, the corresponding openings 121, 122 are opened. This can be done, for example, by simply piercing the plastic film at appropriately marked locations.
- the further mode of operation essentially corresponds to the embodiment of FIGS. 1 and 2.
- Fig. 4 shows another embodiment.
- a plurality of metering reservoirs 203, 223 are provided, which communicate with the reaction reservoir 201 via connection capillary structures 211, 212.
- the metering reservoirs 203, 223 have volumes of different sizes and communicate via a connecting channel structure 216.
- In the connecting channel structure 216 is the filling opening 207.
- the metering reservoirs 203, 223 have ventilation openings 221.
- the connection channel 216 is likewise connected to the reaction reservoir 201 via a connection capillary structure 210.
- the structure 210 also includes a vent hole 221.
- filling openings 209 are provided.
- 217, 218, 219, 220 and 224 illustrate schematically barrier structures.
- the entire metering device of FIG. 4 is provided in a plastic part which is closed by a foil with openings 207, 209, 221. It may also be a disposable part in the metering device of FIG. 4, which is prefabricated ex works.
- the barrier structures 217, 218, 219, 220, 224 are initially designed to be closed.
- the filling openings 207, 209 or the ventilation openings 221, which are not visible per se in the opened representation, are indicated in their position.
- an acoustic chip 215, which corresponds to the already described acoustic chip 15, 115, is located below the arrangement of FIG. 4.
- the acoustic chip 215 is indicated in Fig. 4, although it is not visible in this representation per se, since it is located below the arrangement.
- the characteristic dimensions correspond to the characteristic dimensions of the embodiment of FIGS. 1 and 2.
- the metering reservoir 223 is selected. After the selection is made, the respective barriers 217, 219 adjoining the metering reservoir 223 are melted, for example, by a heater or laser energy. This can be done, for example, with the aid of a machine that processes the dosing device.
- the appropriately selected metering reservoir 223 can then be filled via the filling opening 207 and used for metering.
- the dosage is carried out similarly as described for example in the embodiment of FIGS. 1 and 2.
- the dimensions of the structures are selected so that filling of the metering reservoir can be effected by the action of the capillary force. Alternatively, a filling can be done with pressure.
- the vent opening 221 is arranged so that a complete filling of the reservoir is possible.
- the procedure is analogous using the corresponding barrier structures 218, 220 and the connection capillary structure 212.
- Another embodiment of this embodiment includes no barrier structures 217, 219 ex factory. Before the application, it is first decided again which of the metering reservoirs 203, 223 is to be used. If z. For example, if the metering reservoir 223 is selected, the other metering reservoir 203 is decoupled with the aid of a machine which, at the locations of the barriers 218, 220 which are adjacent to the metering reservoir 203 not to be used, melts the corresponding connection channel structures by application of heating energy or laser energy.
- the individual metering reservoirs 203, 223 can each be connected to the reaction reservoir 201 via a plurality of connecting capillary structures 211, 212, which are open when the corresponding metering reservoir is selected.
- connection capillary structure 210 may be provided, which connects the connection channel 216 with the reaction reservoir 201.
- This connection capillary structure 210 also includes a vent opening 221 and optionally a barrier structure 224.
- the additional channel 210 can serve to form a circuit which promotes effective mixing. After one of the dosing voirs 203, 223, it is filled. For the purpose of the description, this in turn is the metering reservoir 223. First, a configuration is described in which the barrier structures 217, 218, 219, 220, 224 are initially closed. To fill the reservoir 223, the barrier structure 217 is melted as described.
- Liquid is introduced through the filling opening 207, which fills the metering reservoir 223 and the connecting capillary structure 211. Also, the connection capillary structure 210 is filled with this liquid. The filling takes place for example by capillary force.
- the barrier structures 219, 224 can be melted.
- the liquid does not enter the reservoir 201 due to the capillary action which abruptly decreases at the entry points of the connection capillary structures 211, 210 into the reservoir 201.
- Filling the reservoir 201 through the apertures 209 with a second liquid causes the liquids to contact each other at the entry points of the interconnecting capillaries 210, 211.
- Generating, for example, laminar flow with the acoustic chip 215 then causes effective mixing of the liquids. This can lead to a circulation movement of the liquids.
- the barrier structure 224 can also be completely dispensed with.
- the connecting capillary structure 210 definitely participates in the circulatory process, so that decoupling is not necessary.
- the barrier structures 219, 224 only after the introduction of the second liquid in the reservoir 201 melted. Otherwise the procedure is the same.
- the connection structures 210, 211, 212 need not necessarily be able to exert capillary action on the liquids.
- barrier structures 217, 218, 219, 220, 224 which are originally open.
- first liquid is introduced. Due to the capillary action, this flows into the metering reservoirs 203, 223 and into the connection capillary structures 210, 211, 212. They do not enter the reaction reservoir 201, since the capillary action at the points of entry of the connection structures 210, 211, 212 into the reaction reservoir 201 is torn off , It is only now decided which dosing reservoir, and therefore which dosing volume of the first liquid, should be used. For the purpose of the present description, this in turn is the metering reservoir 223.
- the barrier structures 218, 220 are then sealed as described and thus uncoupling the unused metering reservoir 203 with the liquid therein. Second liquid is then filled into the reaction reservoir 201. The subsequent procedure corresponds to the already described cycle procedure.
- Fig. 5 shows the schematic plan view of a further embodiment of a metering device according to the invention.
- the entire assembly 50 is disposed on the surface of a plastic carrier 305.
- the reaction reservoir 1 is formed, for example, by a milled recess of 1 mm depth and has a volume of, for example, 20 ⁇ l.
- this is followed by two metering reservoirs 303, which are formed, for example, by depressions milled with a depth of 1 mm, each with a volume of 10 ⁇ l.
- the dosing reservoirs close over two bottlenecks 311 to the reaction reservoir 301 at.
- filling structures 307 and 309 are connected to the metering reservoir 303 and to the reaction reservoir 301, respectively.
- the filling structures 307, 309 are likewise formed by, for example, 1 mm deep depressions in the plastic carrier 305.
- the feeders 308, 310 are in the example shown wells with 300 microns depth.
- a non-visible plastic film similar to the plastic film 2, as can be seen in Fig. 2.
- this plastic film is pierced as required, for example, in order to be able to introduce liquid with the aid of a pipette.
- 315 is a schematic diagram of an interdigital transducer formed of a large number of interdigitated finger electrodes. The operation has already been explained above with reference to the other embodiment.
- a pulse in the direction of the arrow shown can be transmitted to the liquid in the leg 304 of the metering reservoir 303 shown in the upper half of the figure.
- FIGS. 6a to 6f show a sequence when carrying out a method according to the invention with the embodiment of FIG. 5.
- Lines 320 and 322 were drawn in order to indicate the arrangement of the reaction reservoir 301 with the feeders 310 and the filling structures 309, which in the illustrations of FIGS Fig. 6a to 6f would otherwise not be recognizable due to the low contrast.
- 6a shows a state in which a dark-colored liquid has already been introduced into the metering reservoir 303 through the filling structure 307 and the feed 308.
- the covering plastic film was pierced in the region of the filling structure 307 and the liquid was introduced into the filling structure 307 with a pipette. It can be clearly seen that the dark colored liquid does not enter the still empty reaction reservoir 301 due to its surface tension at the bottlenecks 311.
- the volume is precisely defined in the metering reservoir 303 between the bottlenecks 311 and the feed 308 (10 ⁇ l in the example shown).
- FIG. 6a shows the beginning of this filling process.
- the covering plastic film was pierced in the region of the right filling structure 309 and started to fill in liquid with the aid of a pipette.
- This liquid flows through the feed 310 into the reaction reservoir.
- the fluid limit at this snapshot is approximately at the dotted auxiliary line 324.
- Fig. 6b shows a state in which the entire reaction reservoir 301 is filled with the light liquid. A liquid exchange with the dark liquid in the metering reservoir 303 has taken place at this time only to a very limited extent.
- FIG. 6 c shows how the laminar flow generated thereby in the metering reservoir 303 causes the dark liquid enters the reaction reservoir 301.
- Figs. 6d and 6e show the progress of this process. It can be clearly seen how the dark liquid, which was originally located in the dosing reservoir 303, and the light liquid which was in the reaction reservoir 301, mix.
- Fig. 6f shows the state at the end of the process.
- the liquids in the metering reservoir 303 and the reaction reservoir 301 are mixed homogeneously, which can be recognized by the homogeneous shading.
- a further exchange with the liquid in the feeders 310 from the filling structures 309 to the reaction reservoir 301 has not taken place. Due to the dimensions of the reaction reservoir 301, therefore, the amount of the supplied light liquid is exactly determined. Since the dimensions of the metering reservoir 301 precisely determine the amount of dark liquid added, a very precise metering process has thus been carried out, so that the quantities of the various liquids in the mixture present in FIG. 6f are precisely determined.
- FIGS. 5 and 6 has two metering reservoirs 303. Other embodiments have only one dosing or even more Dosierreservoirs to dose different amounts.
- the illustrated two metering reservoirs 303 are the same size in this embodiment. In order to be able to dose different amounts, differently sized metering reservoirs can also be used.
- barrier structures may also be provided, as described with reference to FIG. 4.
- the number of connected Dosierreservoirs can be controlled, as it is also described for the embodiment of FIG. 4.
- an interdigital transducer 315 is shown in FIG.
- several interdigital transducers can also be provided on the plastic carrier 305 in order to be able to address different dosing reservoirs at different times and in a laminar manner
- FIGS. 6a to 6f show that the method according to the invention leads in particular to a liquid-mixing laminar flow without pressure build-up.
- a device according to the invention may also comprise more than two dosing reservoirs with corresponding connection structures. It is then possible to connect a plurality of metering reservoirs in the circuit "in series" in order to increase the metering volume of the first fluid.
- the individual Dosierreservoirs may have different or the same size.
- reaction reservoir in a process using a loop of liquids, a reaction between the liquids does not take place only in the part of the device called the reaction reservoir.
- the term "dosing reservoir”, with which the dosage of the first liquid is made the term "reaction reservoir” was nevertheless used in the present text, since in particular in the illustrated embodiments, the reaction reservoir is the main structure due to its size the reaction takes place.
- the Dosierreservoirs and the reaction reservoir z. B. are the same size and in a circulation process also takes place in both reservoirs a reaction.
- the dosing or mixing devices according to the invention can be processed in an automatic machine which fills the liquids into the devices, controls the devices, controls the acoustic chips and also opens or closes or opens or opens barriers.
- an automatic machine which fills the liquids into the devices, controls the devices, controls the acoustic chips and also opens or closes or opens or opens barriers.
- the z. B. electrical see or optical evaluation are made.
- Such machines can be usefully used in diagnostics or in laboratory automation in general.
- the mixing ratio between reagents and sample liquid may be set between 1: 100 to 100: 1.
- reaction chamber 1 reaction reservoir, reaction chamber
- reaction chamber 101 101 reaction reservoir, reaction chamber
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Clinical Laboratory Science (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Nozzles (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005000835A DE102005000835B3 (de) | 2005-01-05 | 2005-01-05 | Verfahren und Vorrichtung zur Dosierung kleiner Flüssigkeitsmengen |
| DE102005000834A DE102005000834B4 (de) | 2005-01-05 | 2005-01-05 | Verfahren und Vorrichtung zur Dosierung und Durchmischung kleiner Flüssigkeitsmengen |
| PCT/EP2005/013597 WO2006072383A1 (de) | 2005-01-05 | 2005-12-16 | Verfahren und vorrichtung zur dosierung und durchmischung kleiner flüssigkeitsmengen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1833598A1 true EP1833598A1 (de) | 2007-09-19 |
| EP1833598B1 EP1833598B1 (de) | 2008-10-08 |
Family
ID=35892281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05818698A Expired - Lifetime EP1833598B1 (de) | 2005-01-05 | 2005-12-16 | Verfahren und vorrichtung zur dosierung und durchmischung kleiner flüssigkeitsmengen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8062904B2 (de) |
| EP (1) | EP1833598B1 (de) |
| JP (1) | JP5112880B2 (de) |
| AT (1) | ATE410220T1 (de) |
| DE (1) | DE502005005660D1 (de) |
| WO (1) | WO2006072383A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005000835B3 (de) * | 2005-01-05 | 2006-09-07 | Advalytix Ag | Verfahren und Vorrichtung zur Dosierung kleiner Flüssigkeitsmengen |
| JP5116112B2 (ja) * | 2009-02-19 | 2013-01-09 | シャープ株式会社 | 流体混合装置及び流体混合方法 |
| US9527078B2 (en) * | 2011-07-20 | 2016-12-27 | Enplas Corporation | Fluid handling device, fluid handling method, and fluid handling system |
| CN111032204B (zh) * | 2017-08-31 | 2022-05-31 | 医学诊断公司 | 用于在毛细驱动的流控系统中对流体进行混合的布置 |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4047493A (en) | 1992-04-02 | 1993-11-08 | Abaxis, Inc. | Analytical rotor with dye mixing chamber |
| US5639423A (en) * | 1992-08-31 | 1997-06-17 | The Regents Of The University Of Calfornia | Microfabricated reactor |
| US6010316A (en) | 1996-01-16 | 2000-01-04 | The Board Of Trustees Of The Leland Stanford Junior University | Acoustic micropump |
| US6012902A (en) | 1997-09-25 | 2000-01-11 | Caliper Technologies Corp. | Micropump |
| US6601613B2 (en) | 1998-10-13 | 2003-08-05 | Biomicro Systems, Inc. | Fluid circuit components based upon passive fluid dynamics |
| US6210128B1 (en) | 1999-04-16 | 2001-04-03 | The United States Of America As Represented By The Secretary Of The Navy | Fluidic drive for miniature acoustic fluidic pumps and mixers |
| NZ533466A (en) | 1999-06-28 | 2005-10-28 | California Inst Of Techn | Microfabricated elastomeric valve and pump systems |
| JP2001212469A (ja) * | 2000-02-01 | 2001-08-07 | Seiko Epson Corp | ピペット及びそれを用いた反応方法と混合方法 |
| US6777245B2 (en) | 2000-06-09 | 2004-08-17 | Advalytix Ag | Process for manipulation of small quantities of matter |
| DE10055318A1 (de) | 2000-06-09 | 2001-12-20 | Advalytix Ag | Vorrichtung und Verfahren zum Materietransport kleiner Materiemengen |
| DE10062246C1 (de) * | 2000-12-14 | 2002-05-29 | Advalytix Ag | Verfahren und Vorrichtung zur Manipulation kleiner Flüssigkeitsmengen |
| US6576459B2 (en) | 2001-03-23 | 2003-06-10 | The Regents Of The University Of California | Sample preparation and detection device for infectious agents |
| JP4566456B2 (ja) * | 2001-05-31 | 2010-10-20 | 独立行政法人理化学研究所 | 微量液体制御機構および微量液体制御方法 |
| EP1270073B1 (de) | 2001-06-28 | 2005-02-16 | Agilent Technologies, Inc. (a Delaware corporation) | Mikrofluid-System mit Regler |
| DE10136008B4 (de) | 2001-07-24 | 2005-03-31 | Advalytix Ag | Verfahren zur Analyse von Makromolekülen und Verfahren zur Herstellung einer Analysevorrichtung |
| DE10142789C1 (de) * | 2001-08-31 | 2003-05-28 | Advalytix Ag | Bewegungselement für kleine Flüssigkeitsmengen |
| JP3749991B2 (ja) * | 2001-10-18 | 2006-03-01 | アイダエンジニアリング株式会社 | 微量液体秤取構造及び該構造を有するマイクロチップ |
| US20040109793A1 (en) | 2002-02-07 | 2004-06-10 | Mcneely Michael R | Three-dimensional microfluidics incorporating passive fluid control structures |
| US6811385B2 (en) | 2002-10-31 | 2004-11-02 | Hewlett-Packard Development Company, L.P. | Acoustic micro-pump |
| KR100444751B1 (ko) * | 2002-11-11 | 2004-08-16 | 한국전자통신연구원 | 표면장력에 의한 유체제어 소자 |
| DE10325313B3 (de) | 2003-02-27 | 2004-07-29 | Advalytix Ag | Verfahren und Vorrichtung zur Erzeugung von Bewegung in einem dünnen Flüssigkeitsfilm |
| DE10325307B3 (de) | 2003-02-27 | 2004-07-15 | Advalytix Ag | Verfahren und Vorrichtung zur Durchmischung kleiner Flüssigkeitsmengen in Mikrokavitäten |
| US8038337B2 (en) * | 2003-02-27 | 2011-10-18 | Beckman Coulter, Inc. | Method and device for blending small quantities of liquid in microcavities |
| DE102005000835B3 (de) * | 2005-01-05 | 2006-09-07 | Advalytix Ag | Verfahren und Vorrichtung zur Dosierung kleiner Flüssigkeitsmengen |
-
2005
- 2005-12-16 EP EP05818698A patent/EP1833598B1/de not_active Expired - Lifetime
- 2005-12-16 US US11/794,768 patent/US8062904B2/en not_active Expired - Fee Related
- 2005-12-16 DE DE502005005660T patent/DE502005005660D1/de not_active Expired - Lifetime
- 2005-12-16 WO PCT/EP2005/013597 patent/WO2006072383A1/de not_active Ceased
- 2005-12-16 JP JP2007549811A patent/JP5112880B2/ja not_active Expired - Fee Related
- 2005-12-16 AT AT05818698T patent/ATE410220T1/de not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006072383A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008527337A (ja) | 2008-07-24 |
| EP1833598B1 (de) | 2008-10-08 |
| US8062904B2 (en) | 2011-11-22 |
| ATE410220T1 (de) | 2008-10-15 |
| WO2006072383A1 (de) | 2006-07-13 |
| JP5112880B2 (ja) | 2013-01-09 |
| DE502005005660D1 (de) | 2008-11-20 |
| US20110045595A1 (en) | 2011-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE602004013339T2 (de) | Mischen in mikrofluidvorrichtungen | |
| EP2268405B1 (de) | Vorrichtung zur plasmaseparation | |
| DE10142789C1 (de) | Bewegungselement für kleine Flüssigkeitsmengen | |
| DE60119513T2 (de) | Vorrichtung und verfahren zum einspritzen von flüssigkeiten | |
| DE60317305T2 (de) | Kontaktloses verfahren zur verteilung geringer flüssigkeitsmengen | |
| DE60124699T2 (de) | Zweirichtungs-durchfluss-zentrifugalmikrofluid-vorrichtungen | |
| DE19947496C2 (de) | Mikrofluidischer Mikrochip | |
| EP1807208B1 (de) | Anordnung zur integrierten und automatisierten dna- oder protein-analyse in einer einmal verwendbaren cartridge, herstellungsverfahren für eine solche cartridge und betriebsverfahren der dna- oder protein-analyse unter verwendung einer solchen cartridge | |
| DE10164357B4 (de) | Titrationsverfahren | |
| EP1846160A1 (de) | Neuartige mikrofluidische probenträger | |
| EP1270073A1 (de) | Mikrofluid-System mit Regler | |
| WO2008128534A1 (de) | Küvette für die optische analyse kleiner volumina | |
| EP1599287A1 (de) | Verfahren und vorrichtung zum kontaktieren einer mikrofluidikstruktur | |
| DE112017000632T5 (de) | Vertikaler Mikrofluidik-Sondenkopf mit Öffnungen für eine großmaßstäbliche Oberflächenbearbeitung | |
| EP1843833B1 (de) | Verfahren und vorrichtung zur dosierung und durchmischung kleiner flüssigkeitsmengen, apparat und verwendung | |
| DE602004005681T2 (de) | Kapillarsperre | |
| EP1833598B1 (de) | Verfahren und vorrichtung zur dosierung und durchmischung kleiner flüssigkeitsmengen | |
| DE112019006224T5 (de) | Elektrophoresevorrichtung, die in der Lage ist, eine Elektrophorese an mehreren Proben unabhängig auszuführen | |
| EP2552586B1 (de) | Bauteil eines biosensors und verfahren zur herstellung | |
| EP2156890B1 (de) | Anordnung und Verfahren zum Erzeugen, Manipulieren und Analysieren von Kompartimenten | |
| DE10329983A1 (de) | Mikroreaktorsystem mit einer Reaktionsräume aufweisenden Trägerplatte und Verfahren zum Betrieb desselben | |
| DE102005000834B4 (de) | Verfahren und Vorrichtung zur Dosierung und Durchmischung kleiner Flüssigkeitsmengen | |
| EP3043909B1 (de) | Mikrofluidikanalyse-bauelement und herstellungsverfahren | |
| DE102005049976A1 (de) | Anordnung zur integrierten und automatisierten DNA- oder Protein-Analyse in einer einmal verwendbaren Cartridge, Herstellungsverfahren für eine solche Cartridge und Betriebsverfahren der DNA- oder Protein-Analyse unter Verwendung einer solchen Cartridge | |
| DE10339996A1 (de) | Analyseverfahren, Analysevorrichtung und Analysechip zur Analyse von Reagenzien |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20070622 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OLYMPUS LIFE SCIENCE RESEARCH EUROPA GMBH |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REF | Corresponds to: |
Ref document number: 502005005660 Country of ref document: DE Date of ref document: 20081120 Kind code of ref document: P |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090119 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090108 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090208 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090218 |
|
| BERE | Be: lapsed |
Owner name: OLYMPUS LIFE SCIENCE RESEARCH EUROPA G.M.B.H. Effective date: 20081231 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081231 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090108 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 |
|
| 26N | No opposition filed |
Effective date: 20090709 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081216 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081216 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090409 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081008 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20100819 AND 20100825 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091231 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091231 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090109 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP Ref country code: FR Ref legal event code: CA |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 11 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 12 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20161228 Year of fee payment: 12 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20161227 Year of fee payment: 12 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20171216 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20180831 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180102 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171216 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20181231 Year of fee payment: 14 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502005005660 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200701 |