WO1998041874A1 - Dispositif et procede d'analyse automatique d'echantillons sur gels - Google Patents
Dispositif et procede d'analyse automatique d'echantillons sur gels Download PDFInfo
- Publication number
- WO1998041874A1 WO1998041874A1 PCT/FR1998/000455 FR9800455W WO9841874A1 WO 1998041874 A1 WO1998041874 A1 WO 1998041874A1 FR 9800455 W FR9800455 W FR 9800455W WO 9841874 A1 WO9841874 A1 WO 9841874A1
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- WIPO (PCT)
- Prior art keywords
- analysis
- station
- samples
- gel
- tool
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/447—Systems using electrophoresis
- G01N27/44704—Details; Accessories
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/447—Systems using electrophoresis
- G01N27/44756—Apparatus specially adapted therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/0099—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor comprising robots or similar manipulators
Definitions
- the present invention relates to the technical field of devices and methods for making automatic the analysis of samples, of biological or chemical type, intended to be handled, prepared and then implanted in or on an analysis solution or gel, in view of their analysis and / or further processing.
- the present invention relates to an automatic analysis device for samples, of biological or chemical type, intended to be handled, prepared and then implanted in or on analysis solutions or gels for their analysis or subsequent treatment, said device comprising a main chassis and a work surface that permanently integrates:
- At least one feeding station intended to receive at least one micro-plate provided with a series of cells each containing a volume of samples to be prepared
- an automaton or robot manipulator that can be moved from the supply station to the supply station under the control of a central autopilot unit to ensure, using a handling tool, the simultaneous withdrawal of a volume unit samples in several cells, then transfer and deposit in one go each of said unit volumes at a predetermined location on the analysis solution or gel.
- the present invention relates to a method for automatic analysis of samples, of biological or chemical type, intended to be handled, prepared and then implanted in or on analysis solutions or gels for their subsequent analysis, said method comprising the steps consisting on the one hand in ensuring the taking of a series of samples by a robot manipulator or an automatic machine from a series of microplates, and on the other hand, in transferring, then depositing by the automatic machine, said samples taken from or on the surface of a support covered with an analysis solution or gel.
- the present invention also relates to a device and a method for viewing the result of any treatments carried out on the samples after their implantation on or in the analysis solutions or gels, as well as a device and method for verifying the identification and the origin of the samples and of the gels or analysis substances used during the various phases of treatment and implantation of the samples.
- the plate covered with a layer of agarose gel underwent, during a molding operation, a mechanical preparation of its surface in order to obtain by molding a series of wells into which the DNA samples will be deposited.
- the agarose gel plates are consequently deposited one by one manually by an operator on a work station, the operator also having to deposit near this work station a micro-plate provided with a series of cells containing each a volume of samples to be taken.
- the machine used to ensure the sample collection includes a two-axis manipulator robot allowing it to first take using a pipetting tool, a volume of all the samples from the microplate , then in a second step, come and deposit the samples taken in the wells formed in the agarose gel.
- this technique only partially automates a series of common and complex operations involved in research, manipulation and analysis techniques used in the medical field.
- this known technique does not allow complete control of the implantation phase of the samples in or on the analysis gels.
- This phase is essential for the analysis and further processing of the samples, particularly when the samples are intended to be subjected to electrophoresis treatment.
- the known technique requires repeated manual interventions on the part of the operator to manually place the microplates on the one hand and the gel plates on the other hand.
- the object of the present invention therefore aims to remedy the various drawbacks listed above, and to propose a new device and method for automatic analysis of samples intended to be handled, prepared and then implanted in or on analysis gels with a view to their subsequent analysis or processing which is capable of ensuring as complete automation as possible of the different sample preparation operations while improving control of implantation and the reliability of any subsequent treatments.
- Another object of the invention is to provide a new device for automatic analysis of samples capable of processing and analyzing a very large quantity of samples per day while minimizing manual intervention by operators.
- Another object of the invention is to propose a new device and method for automatic analysis of samples making it possible to make automatic most of the chain of steps involved in the handling and preparation of samples, in particular fragments of DNA intended to be implanted in an agarose gel to be subsequently subjected to an electrophoresis.
- Another object of the invention is to propose a new device and method for automatic analysis of samples, minimizing the potential risks of contamination of the samples.
- Another object of the invention is to provide a new device and method for automatic analysis of samples capable of being adapted to various techniques for the preparation and analysis of samples of biological and / or chemical nature while retaining a advanced automation.
- a complementary object of the invention aims to provide a new electrophoresis station capable of being integrated into various devices.
- a complementary object of the invention aims to provide an automatic washing station for a sample collection tool, said station being capable of being integrated into an automatic sample analysis device.
- Another object of the invention aims to provide a new station for viewing the result of the treatments carried out on biological or chemical samples, said station also being able to perform the various analysis and verification steps of the treatment results in an automated manner.
- Another object of the invention is to provide a new method for verifying and tracing the origin of the samples after treatment, said method being capable of being integrated into an automatic analysis device for samples.
- an automatic analysis device of samples, of biological or chemical type, intended to be handled, prepared, then implanted in or on analysis gels with a view to from their analysis said device comprising a main chassis and a work surface which permanently integrate:
- At least one supply station intended to receive at least one microplate provided with a series of cells each containing a volume of sample to be prepared, - at least one supply station intended to receive at least one plate covered with 'an analysis gel,
- a manipulator robot that can be moved from the supply station to the supply station under the control of a central autopilot unit to ensure, using a handling tool, the simultaneous removal of a unit volume d sample in all the cells then to transfer and deposit in one go each of said unit volumes at a pre-established location on the analysis gel
- the manipulator robot includes a manipulation tool with interchangeable head to ensure continuously during of the same movement cycle and successively by tool change, the mechanical preparation of the gel surface by shaping localized reception areas using a shaping tool and then taking all the unit volumes of the samples from the microplates using a sampling tool and finally the depositing of said unit volumes in said localized reception areas using the sampling tool.
- an automatic analysis method of samples, of biological or chemical type, to be implanted in or on analysis gels with a view to their subsequent analysis comprising the following steps: a) the collection of a series of samples is carried out by an automatic machine, from a series of micro-plates, b) and the said samples taken are transferred and then deposited by the automatic machine, on or in the surface of a support covered with an analysis gel, characterized in that it consists, before step a), of having, by the same automaton, a step c), comprising the mechanical preparation of the surface of the analysis gel.
- FIG. 1 shows in a perspective view, an embodiment of a device for handling and automatic preparation of samples according to the invention.
- - Figure 2 shows in a top view a detail of the working surface of the device for handling and automatic preparation of samples according to the invention.
- FIG. 3 shows in a cross-sectional view, a detail of embodiment of a micro-plate used in accordance with the invention.
- - Figure 4 shows in a longitudinal cross sectional view, a detail of embodiment of a shaping tool according to the invention.
- FIG. 5 shows, in a longitudinal cross section, a detail of the embodiment of a punch fitted to the shaping tool shown in FIG. 4.
- FIG. 6 shows in a longitudinal cross section, the internal structure of an electrophoresis station according to the invention.
- FIG. 7 shows in a longitudinal cross section, the internal structure of a sample collection tool according to the invention.
- FIG. 8 shows in a top view, an embodiment of a gripping tool according to the invention.
- FIG. 9 shows, in a cross section, the internal structure of a washing station according to the invention.
- FIG. 10 shows a detail of an receiving cone fitted to the washing station shown in Figure 9.
- FIG 11 shows in a perspective view a storage station for analysis gel plates.
- FIG. 12 shows in a perspective view a support plate of micro-plates.
- FIG. 13 shows in a perspective view the step of mechanical preparation of the surface of the analysis gel.
- FIG. 14 shows in a perspective view, the operation of depositing the samples on an analysis gel plate.
- - Figure 15 shows a detail of the implementation of the electrodes on a gel plate in the electrophoresis station.
- - Figure 16 shows in a side view, an exemplary embodiment of a station for analyzing the results of sample processing according to the invention.
- - Figure 17 shows in a side view corresponding to a rotation at 90 ° relative to the view of Figure 16, an embodiment of an analysis station according to the invention.
- the device for handling and automatic preparation of biological type samples is, as shown in FIG. 1, in the form of a machine comprising a main frame 1 resting on the ground by means of feet (not shown in the figures) and having, in its lower part, an external fairing 2 surmounted by a substantially horizontal working surface 3.
- the entire machine is supported by the main chassis 1, for example metallic, which has the robustness characteristics necessary for its frequency and its duration of use.
- the fairing 2 internally comprises all the elements or groups of elements necessary for the proper functioning of the machine in general, namely for example, a cold production group, vacuum pumps, various liquid or fluid reservoirs as well as all the necessary electronic and electrical connections and equipment.
- the machine can be provided with a protective cabin (not shown in the figures) and with an air conditioning device making it possible to isolate from the outside the working surface 3 and all of the equipment which s are there.
- the working surface 3 supports and permanently integrates at least one and preferably four supply stations 10 intended to receive at least one, and preferably several micro- plates 1 1 provided with a series of cells 12 (FIG. 3) intended to each contain a volume of samples 13 to be prepared, as well as at least one and preferably two supply stations 50 intended to receive at least one and preferably a plurality of plates 21 ( Figures 13 to 14) covered with an analysis gel 22, preferably agarose.
- the work surface 3 also supports and integrates permanently a robot manipulator 30 movable from the supply station 10 to the supply station 50 under the control of a central autopilot unit (not shown in the figures) to ensure that the using a manipulation tool, the simultaneous removal of a unit volume of samples 13 in all of the cells 12, then transfer and deposit in one go, each of said unit volumes at a predetermined location on the analysis gel 22.
- a robot manipulator 30 movable from the supply station 10 to the supply station 50 under the control of a central autopilot unit (not shown in the figures) to ensure that the using a manipulation tool, the simultaneous removal of a unit volume of samples 13 in all of the cells 12, then transfer and deposit in one go, each of said unit volumes at a predetermined location on the analysis gel 22.
- the working surface 3 also supports at least one and preferably two electrophoresis blocks 60 aligned with the two supply stations 50, but arranged between the latter.
- the four supply stations 10 are arranged opposite the supply stations 50 and placed symmetrically with respect to a substantially central axis of the work surface 3 so as to define a substantially central location on the work surface 3 to constitute at least one supply station 50.
- the latter is intended to receive at least one plate 21 covered with an analysis gel 22 and serves as a table for laying and handling said plates 21.
- the plates 21 are for example made of glass or of a material having a certain flexibility, for example flexible sheets of MILLARD.
- the plates 21 are covered with a gel or an analysis support, and for example with an agarose gel with a thickness of the order of 1.5 mm for example.
- the plates 21 which are in the form of a rectangular parallelepiped of format 260 mm ⁇ 244 mm are stored in the storage station 20 formed by a shelf 25 (FIG. 11) in which the plates 21 are superimposed.
- the plates 21 are therefore stored and inserted into each shelf 25, in the manner of a drawer, each shelf being moreover fixed to the working surface 3 by any suitable means, and for example by a system of slides.
- All of the plates 21 and the shelves 25 are also locked in the working position by means of the locking system, for example using electromagnets, a series of active proximity sensors also checking for correct installation and locking.
- the working surface 3 comprises two shelves 25 each containing 8 locations necessary for the storage of eight plates 21.
- the shelves 25 are therefore easily interchangeable, stackable, and quickly set up. place or removed from the work surface 3 while maintaining a perfectly repetitive spatial position.
- the microplates 11 are produced, in a known manner, based on a plastic material such as polycarbonate and comprise a plurality of cells 12, 96, 192 or 384 depending on the type of micro-plates 11. Each cell has a volume of the order of 15 to 50 micro-liters intended to receive, according to the preferred example of the invention, a series of DNA samples, of a variable volume depending on the plates 11 used, the preferred volume the sample taken being of the order of 5 ⁇ l, said volume being deposited using a pipette and covered with a thin film of oil 16.
- micro-plates 11 containing the DNA fragments are deposited on the working surface 3 in slide-out drawers, each drawer supporting a plate 17, for example made of aluminum on which eight micro-plates 11 are deposited for example.
- Each micro-plate 1 1 rests on a plate 18, for example made of PVC, provided with wedging and keying members 19 intended to cooperate with paired members integral with the underside of the micro-plates 11 to ensure their attachment to the plates 18 in a preset position.
- the wedging and polarizing members 19 comprise a series of studs 19 integral with the plate 18 forming at their upper part a retaining cone around which is placed an O-ring 19a intended to come to get stuck in a series of recesses in the bottom surface of the microplates 11.
- the plate 17 also includes a series of keying pins 19b making it possible to avoid the movement of the plate 17 during the movement of the slide drawer.
- the device according to the invention consequently comprises at least one and preferably four supply stations 10 which each comprise a plate 17 on which the plurality of micro-plates are arranged 11.
- the supply station 50 constitutes the table preparation on which the robot manipulator 30 is primarily intended to work in order to carry out the operation of depositing the samples 13 in or on the plates 21 covered with analysis gel 22.
- the supply station 50 consists of a plate, preferably metallic and for example of aluminum alloy provided with means allowing the plates 21 to be held in place, and for example a suction means.
- the aluminum plate is provided with four vacuum suction cups allowing the plates 21 to be maintained throughout the preparation of the samples.
- a vacuum switch can be placed in parallel on the vacuum circuit which will supply the suction cups, in order to detect a possible defect in the absence of a glass plate or a leak in the vacuum circuit.
- the aluminum alloy plate can also be advantageously mounted with the possibility of displacement, preferably by rotation, relative to the working surface 3 using an actuator.
- the plates 21 of analysis gel being intended to be subjected to an electrophoresis operation, the possibility of driving in rotation, using an actuator, for example pneumatic, on an angular movement of 180 ° makes it possible to '' reverse the position of the plates 21 and subsequently also to reverse the polarity of the electrodes in the electrophoresis blocks 20. This particularity then makes it possible to respect the directions of migration of the DNA fragments.
- the actuator (not shown in the figures) can advantageously be of the double piston and rack type, the two positions of the aluminum plate being controlled by inductive proximity sensors
- the manipulator robot 30 is mounted movable above the working surface 3 along three working axes X, Y, Z, corresponding to the three directions of space, each axis being associated respectively with three arms 51 , 52.53.
- the robotic manipulator 30 is of the “pick and place” type and the three axes of movement are slaved in position, without return of proprioceptive force or additional exteroceptive information.
- the vertical movement axis Z will advantageously be provided with an electro-brake in order to avoid any fall by gravity in the event of a power failure.
- the manipulator robot 30 is capable of moving towards localized areas of the work surface 3 where various work heads are previously deposited in order to use them during its work cycle in order to accomplish the various tasks assigned to it such as picking up and removing work heads which are different handling tools.
- the robot manipulator 30 which can successively use several types of tools is provided at the end of its vertical arm 53 with a tool changer 55 equipped with an interchangeable head. Due to the weight and size of the tools required by the manipulator robot 30, the solution for depositing the tools on the working surface 3 has been adopted, preferably in systems with interchangeable heads in which the different tools are fixed on the arm. 52. In a manner known per se, the robot manipulator 30 as well as the tool changer 55 are provided with all the electromechanical and pneumatic equipment necessary for their operation.
- the device comprises at least three different working heads, namely a shaping tool 70, formed by a punching tool, a gripping tool 71 of the plates 21, and a sampling tool 73 samples 13.
- the shaping tool 70 is intended to ensure the mechanical preparation of the surface of the analysis gels 22 by shaping localized areas for receiving the samples 13.
- the shaping tool 70 will be formed by a punching tool ( Figures 4 and 5) whose object is to cut and then aspirate a fragment of agarose gel in order to create wells 75 (figure 13).
- the punching tool is formed by a set of forming punches 76 aligned and fixed on a common support (not shown in the figures) and for example a stainless steel bar.
- the punching tool 70 will comprise a set of twelve punches aligned in a pitch of 9 mm.
- Each punch 76 is embedded in a housing 77, the bottom of which is fitted with an O-ring 78 which is sufficiently elastic to allow the desired compliance during the punching operation requiring repeated mechanical shock. This possibility of longitudinal displacement also makes it possible to make up for any differences in thickness between the plates 21.
- Each punch 76 is made of stainless steel and is provided with a hollow end piece 79, preferably of rectangular section, machined by electroerosion.
- a hollow end piece 79 preferably of rectangular section, machined by electroerosion.
- the punches 76 being formed from hollow punches for cutting and then aspirating the fragment of agarose gel, it is necessary to provide a device avoiding progressive fouling of the punch by the deposit of gel at their end.
- the punches 76 are fixed on a part 81 forming a trap and internally delimiting an internal chamber 82 for trapping the gel fragments.
- the internal chamber 82 is connected on the one hand to the internal volume of the punches 76 and of their end piece 79, and on the other hand, by a pipe 83, to a common vacuum pump (not shown in the figures).
- the mini parallelepipeds of punched gels are sucked by the vacuum pump and collected in the internal chamber 82 common to all the punches 76.
- the gripping tool 71 is intended to select, grasp, and then deposit, using substantially horizontal displacements, each plate 21 individually from the storage stations 20 to deposit them at the supply station 50 for the shaping of the surface of the analysis gel 22.
- the gripping tool 71 is also intended to replace the plates 21 in the electrophoresis stations 60 and then to extract them again from these same stations to replace them in the shelves 25 of the storage station 20.
- the gripping tool 71 (FIG. 8) is formed by two U-shaped fingers, 81, 82, with adjustable spacing, preferably by translation and intended to support the plates 21.
- the spacing of the fingers 81, 82 is adjustable, preferably by translation, using ball pads controlled by a pneumatic cylinder
- the adjustable spacing of the fingers 81, 82 allows their retraction and also allows the gripping tool 71 to disengage from the plates 21 to release them.
- each tooth 81, 82 intended to support the plates 21 is provided with a longitudinal slot 84 into which a vacuum suction system is inserted ensuring good maintenance of the plates 21.
- the sampling tool 73 for the samples 13 shown in FIG. 7 is formed by a set of pipettes 91 with adjustable volume comprising hollow needles with position also adjustable.
- the sampling tool 73 will comprise twelve pipettes with adjustable volume.
- the position of the hollow needles is advantageously achieved by a pressure screw.
- contamination of the fluid during pipetting is avoided by using the bubble insulation technique.
- the pipettes 91 are connected, preferably by a two-way valve 92, to a washing unit on the one hand, and to a suction-pressure syringe on the other hand.
- washing station 100 (FIGS. 9 and 10) intended to ensure the cleaning of the removal tool 73 after each deposit of the fragments of DNA on the analysis gel 22.
- the washing station 100 it is planned to have the washing station 100 near the supply station 50 so that the robot manipulator 30 can get there quickly automatically during its work cycle after each collection and deposit of samples 13.
- the washing station 100 consists of a block
- each conduit 103 opens into a conduit 104 for collecting the washing fluid, said conduit connecting the whole of the block to a member for suction and discharge of the fluid arranged for example in the lower part of the machine.
- Figure 10 shows a detail of the realization of a reception cone
- the device according to the invention also comprises at least one, and preferably two electrophoresis stations 60, arranged on the working surface 3 towards which the robot manipulator 30 is capable of moving automatically during its working cycle after each cycle of depositing unit volumes of samples 13 in wells 75 in order to place therein each plate of analysis gel thus prepared.
- each electrophoresis station 60 is formed by a housing 61 (FIG. 6) capable of being opened on its front face and internally comprising a series of soles 62 thermostated and superimposed.
- the sole 62 therefore define between them a series of niches 63, and for example eight niches 63 in which the plates 21 containing the samples 13 are intended to be inserted by the robot manipulator 30.
- the plates 21 are held in place by the soles 62 which internally comprise a serpentine cooling circuit connected to a cold group in order to evacuate the calories produced by the passage of current during electrophoresis.
- the soles 62 which internally comprise a serpentine cooling circuit connected to a cold group in order to evacuate the calories produced by the passage of current during electrophoresis.
- On the internal lateral edges of the housing 61 there is fixed a series of racks 66 provided with sponge electrodes 65 (FIGS. 6 and 15) whose position is variable and controlled by a position control system between at least one position of contact with the surface of the analysis gel 22 and at least one position out of contact.
- Each niche 63 therefore comprises a pair of electrodes 65 individually electrically connected to a source of electrical power, the control system comprising an actuating member 67, preferably a pneumatic cylinder acting on a plate 68 supporting the sole 62 located at the lowest level of the housing 61.
- the actuating member 67 acts on and controls the vertical movement of the set of racks 66 making it possible to move the electrodes 65 up and down.
- the electrodes 65 are formed by sponges soaked in a buffer solution of the same composition as the analysis gel 22, the electrical contact between the supply copper wire and the sponge 65 being effected using a titanium plate covered with platinum to reduce or avoid oxidation.
- the robot manipulator 30 therefore comprises a manipulation tool whose head is interchangeable in order to ensure continuously during the same movement cycle and successively by tool change 70, 71, 72 the mechanical preparation from the surface of the gel 22 by shaping localized areas 75 of reception using a shaping tool 70, then taking all the unit volumes of the samples 13 from the microplates 1 1 using a sampling 73, the manipulator robot 30 finally ensuring the deposit of unit volumes in said localized areas 75 for receiving samples 13 using the sampling tool 73.
- the robot manipulator 30 is therefore able to carry out itself the essential operations of preparing the samples 13 at the same supply station 50 while using a reduced number of handling tools, the multiplicity of supply stations 10, storage 20 and electrophoresis stations ensuring its continuous operation and the absence of dead spots in its cycle.
- the manipulator robot 30 is capable of using the gripping tool 71 to select, grasp, then deposit a plate 21 at the supply station 50 for its surface shaping.
- Figures 16 and 17 show a viewing station 1 10 of the result of the processing of samples 13 subjected to electrophoresis, said station 1 10 being intended to be associated with the device for automatic analysis of samples 13.
- the viewing station 110 is separated from the automatic sample analysis device 13 and is autonomous.
- the station 1 10 has its own chassis 1 1 1 comprising a working platform 1 12 intended to receive: - shelves 1 13 forming a second supply station 1 13a in which the plates 21 of analysis gel 22 having undergone l electrophoresis are stacked,
- a light-tight image-taking station 114 in which a visual recording means 115 is fixed, for example a camera, -
- a second manipulator robot 1 16 equipped with a second gripping tool 70 said robot being able to move between the supply station 1 13a to grab a plate 21 and the image taking station 1 14 to depositing said plate 21, said robot also being able to place plate 21 in shelves 1 13 after taking images.
- the shelves 113 correspond to the shelves 25 which have been transported from the analysis station after the electrophoresis treatment.
- the station 110 is equipped with a viewing station 117, provided for example with a screen allowing the operator to view the result of the picture taken by the visual recording means.
- the manipulator robot 1 16 is a robot with two axes of movement, one to enter the shelves of the supply station 1 13, the other to increment the different heights of the shelves 1 13 and attach the plates 21 to the image taking station 1 14.
- the manipulator robot 1 16 comprises a gripping tool 70 identical to that shown in FIG. 8 but comprising two fingers 81, 82 in U in fixed position.
- the image taking station 1 14 is equipped with a laying plane 120 comprising for example a series of metal support bars, and with a UV lighting system arranged above the laying plane 120, preferably laterally .
- the lighting system will for example be composed of two UV lighting units 121, 122 arranged so as to intersect their light flux.
- the plates 21 are therefore analyzed and viewed by fluorescence.
- the visual means for taking images 1 15 is advantageously constituted by a high sensitivity camera, such as a CCD camera (photo sensys 1400) located at a level higher than the lighting system 121, 122 and above the plane 120.
- the entire sample analysis device including the analysis station 110 is controlled and controlled by a central automatic pilot unit including an architecture of electronic controls articulated for example from IBM PC compatible computers. To keep the possibility of converting and upgrading the installation, the control of all two machines is dependent on several IBM PC compatible computers including:
- Elec C electrophoresis control computer which is the slave of the C Sup. Control computer
- the computers can be connected to an external computer network or server with a view to acquiring standard experience files and communicating the various information items between them.
- the invention also relates to a method for automatic analysis of samples, of biological or chemical type, to be implanted in or on analysis gels with a view to their subsequent analysis, preferably after treatment by electrophoresis.
- the method of automatic analysis of samples is more particularly, but not exclusively intended for preparing samples from DNA fragments intended to be implanted in wells 75 formed on an agarose gel.
- the method of the invention comprises the following main stages in which: a) the collection of a series of samples is carried out using an automaton or a manipulator robot from a series of microplates 21,
- step a in having the same automaton or manipulator robot carry out a step c) comprising the mechanical preparation of the surface of the analysis gel 22.
- the mechanical preparation of the surface of the analysis gel will consist in producing a series of wells 75 directly on the working surface 3 by the automated system.
- the method also consists of using the same automaton or robot manipulator 30 to cause the same automaton to carry out the following work cycle:
- the manipulator robot is able to move under the control of the computer C Sup at the appropriate places on the work surface 3 on which the various manipulation tools 70, 71, 73 are placed to deposit the tool. unnecessary and take the tool necessary for the subsequent operation of its work cycle.
- the method according to the invention then consists in transporting the plates 21 with the analysis gels 22, preferably after treatment, to a viewing station 110 of the treatment result, in this case preferably an electrophoresis treatment. .
- This step therefore consists in transporting the shelves 25, 113 containing the analysis gels to the viewing station 110 and in depositing at least one shelf 113 on the work station 120.
- the method then consists, at the display station 110, and using a second automaton or robot manipulator 116, in successively and individually extracting each plate 21 from the shelves 113, and transporting said plates individually and then depositing them at an image taking station 1 14,
- the method then consists in replacing the plate 21 in the shelf
- the method also includes a step of verifying the identification of the origin of the plates 21 and of the analysis gels 22 in relation to the samples 13 deposited, said origin being identifiable on each photograph by identification of a code.
- the verification step consists, after having previously, on the one hand recorded for example using a camera placed at the end of the manipulator robot 30 of the analysis device, a pair of identification images comprising an identification of the marking of each microplate 21 when the samples are taken 13, with an identification of the marking of the analysis gels after depositing the samples, and on the other hand, stored in a file for example by concatenation, the couple d '' images thus obtained:
- the reliability of the final analysis image can be called into question by errors of identification of the samples due for example to the inversion or the substitution of plates 21 during the supplies.
- micro-plates which can be the source of handling errors on the analysis machine
- glass plates 21 which can be incriminated during the analysis phase.
- the principle of marking retained consists in associating with this handwritten marking a second marking labeled on the plates 21 by using a binary coding known as bits (1024 plates).
- This code can be analyzed using a CCD camera attached to the end of the manipulator robot 30, identification shots of the writing and the associated code then being taken during the pipetting operation.
- Taking photos will consist of taking a first photo when DNA samples 13 are taken, then a second photo when depositing the DNA fragments on the analysis gels 22.
- Each pair of images is then for example concatenated in a file whose name is the decoded number of the label, the file being transferred to the computer Cim.
- the display machine decodes the label of the plate 21 during processing.
- the method then consists in launching a search for the source file containing the pairs of images initially recorded and then inserting the content thus found, for example on the display screen 17.
- the operator can then compare during the final image, both the image of the migration of DNA fragments as well as his own code supplemented by the image of the initial handwritten identification and the code which was also his initially associated. When the two codes are identical, there is then reason to conclude that there was no handling error.
- the communication of the images and their trace is done using a connection between the C Sup and Cim computers by a network installation.
- the complete cycle of the preparation of a plate of DNA samples corresponding to the work cycle of the robot manipulator 30 therefore consists for said robot, after having ensured, thanks to a series of sensors, that the plates 21 provided with analysis gels 22 are actually present in the appropriate storage station 20, and that the microplates 1 1 are also effectively present in the storage station 10, to fetch a plate 21 from the shelf 25 using the appropriate gripping tool, then place it on post 50.
- the robot manipulator 30 can then deposit the gripping tool on the working surface 3 and replace it with the shaping tool with which it will form the wells 75 on the plate 21.
- the manipulator robot will then release the punching tool to replace it with the sampling tool in order to aspirate the DNA samples simultaneously in the microplates 11 then finally deposit the samples 13 in the wells 75 formed previously.
- the robotic manipulator will wash the pipettes at the washing station between each pipetting cycle.
- the robot manipulator 30 will then take up the gripping tool to move the preparation, namely the plate 21 now containing the samples, in one of the electrophoresis blocks 60.
- the preparation will remain subjected in the electrophoresis block electric field for example for about 20 minutes.
- the robot takes up the plate with the gripping tool and will store it in the shelf in its original location.
- the plates 21 serving to support the gels or analysis solutions are made of standard black glass. An appreciable gain in contrast is thus obtained during revelation of the migration of the DNA fragments, by fluorescence at the end of the electrophoresis.
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- Molecular Biology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54018698A JP2001516452A (ja) | 1997-03-17 | 1998-03-06 | ゲルに対する自動試料分析用の方法及び装置 |
| CA002283694A CA2283694A1 (fr) | 1997-03-17 | 1998-03-06 | Dispositif et procede d'analyse automatique d'echantillons sur gels |
| EP98913855A EP0968433A1 (fr) | 1997-03-17 | 1998-03-06 | Dispositif et procede d'analyse automatique d'echantillons sur gels |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9703211A FR2760844B1 (fr) | 1997-03-17 | 1997-03-17 | Dispositif et procede d'analyse automatique d'echantillons sur gels |
| FR97/03211 | 1997-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998041874A1 true WO1998041874A1 (fr) | 1998-09-24 |
Family
ID=9504861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1998/000455 Ceased WO1998041874A1 (fr) | 1997-03-17 | 1998-03-06 | Dispositif et procede d'analyse automatique d'echantillons sur gels |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0968433A1 (fr) |
| JP (1) | JP2001516452A (fr) |
| CA (1) | CA2283694A1 (fr) |
| FR (1) | FR2760844B1 (fr) |
| WO (1) | WO1998041874A1 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254833B1 (en) | 1998-02-24 | 2001-07-03 | Aurora Biosciences Corporation | Microplate lid |
| WO2002077630A1 (fr) * | 2001-03-26 | 2002-10-03 | Proteome Systems Intellectual Property Pty Ltd | Appareil d'electrophorese |
| US6825042B1 (en) | 1998-02-24 | 2004-11-30 | Vertex Pharmaceuticals (San Diego) Llc | Microplate lid |
| CN113999766A (zh) * | 2021-10-18 | 2022-02-01 | 中国人民解放军联勤保障部队第九八〇医院 | 一种针对老年认知障碍对触珠蛋白基因分型分析仪 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000060362A1 (fr) * | 1999-04-08 | 2000-10-12 | Chung Chang Young | Appareil de preparation et d'analyse rapides d'acides nucleiques |
| FR2809818B1 (fr) * | 2000-05-31 | 2003-10-24 | Sebia Sa | Identification positive d'echantillons analyses par electrophorese sur support poreux |
| JP4572022B2 (ja) * | 2000-07-06 | 2010-10-27 | 光夫 板倉 | 平板ゲル電気泳動装置用試料導入装置およびその試料導入方法 |
| AUPR121200A0 (en) * | 2000-11-03 | 2000-11-30 | Campbell Corporation Pty Ltd | A replicator system and components thereof |
| FR2867695B1 (fr) | 2004-03-18 | 2006-12-29 | Portmann Instr | Dispositif et procede de filtration et/ou de separation de molecules |
| CA2980595C (fr) * | 2015-04-09 | 2020-09-22 | Gen-Probe Incorporated | Systemes et procedes d'essais d'echantillon a nettoyage automatise |
| ES2560110B1 (es) * | 2015-06-26 | 2016-09-09 | Grifols, S.A. | Aparato para la realización automática de análisis de inmunohematología en tarjetas de gel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699680A (en) * | 1984-03-29 | 1987-10-13 | Director Of The Finance Division Minister's Secretariat Science And Technology Agency | Process and apparatus for manufacturing element for electrophoresis |
| US4986891A (en) * | 1987-03-16 | 1991-01-22 | Helena Laboratories Corporation | Automatic electrophoresis apparatus and method |
| WO1993025912A2 (fr) * | 1992-06-09 | 1993-12-23 | Medical Research Council | Preparation automatique d'acides nucleiques |
| WO1994008759A1 (fr) * | 1992-10-16 | 1994-04-28 | Thomas Jefferson University | Procede et appareil d'execution robotique de reactions de sequencage de didesoxynucleotides de sanger |
| WO1996039625A1 (fr) * | 1995-06-06 | 1996-12-12 | Beltronics Inc. | Systeme et procede d'analyse automatique de proteines et/ou de l'adn |
-
1997
- 1997-03-17 FR FR9703211A patent/FR2760844B1/fr not_active Expired - Fee Related
-
1998
- 1998-03-06 JP JP54018698A patent/JP2001516452A/ja active Pending
- 1998-03-06 EP EP98913855A patent/EP0968433A1/fr not_active Ceased
- 1998-03-06 WO PCT/FR1998/000455 patent/WO1998041874A1/fr not_active Ceased
- 1998-03-06 CA CA002283694A patent/CA2283694A1/fr not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699680A (en) * | 1984-03-29 | 1987-10-13 | Director Of The Finance Division Minister's Secretariat Science And Technology Agency | Process and apparatus for manufacturing element for electrophoresis |
| US4986891A (en) * | 1987-03-16 | 1991-01-22 | Helena Laboratories Corporation | Automatic electrophoresis apparatus and method |
| WO1993025912A2 (fr) * | 1992-06-09 | 1993-12-23 | Medical Research Council | Preparation automatique d'acides nucleiques |
| WO1994008759A1 (fr) * | 1992-10-16 | 1994-04-28 | Thomas Jefferson University | Procede et appareil d'execution robotique de reactions de sequencage de didesoxynucleotides de sanger |
| WO1996039625A1 (fr) * | 1995-06-06 | 1996-12-12 | Beltronics Inc. | Systeme et procede d'analyse automatique de proteines et/ou de l'adn |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254833B1 (en) | 1998-02-24 | 2001-07-03 | Aurora Biosciences Corporation | Microplate lid |
| US6825042B1 (en) | 1998-02-24 | 2004-11-30 | Vertex Pharmaceuticals (San Diego) Llc | Microplate lid |
| WO2002077630A1 (fr) * | 2001-03-26 | 2002-10-03 | Proteome Systems Intellectual Property Pty Ltd | Appareil d'electrophorese |
| CN113999766A (zh) * | 2021-10-18 | 2022-02-01 | 中国人民解放军联勤保障部队第九八〇医院 | 一种针对老年认知障碍对触珠蛋白基因分型分析仪 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2283694A1 (fr) | 1998-09-24 |
| JP2001516452A (ja) | 2001-09-25 |
| FR2760844A1 (fr) | 1998-09-18 |
| FR2760844B1 (fr) | 1999-05-21 |
| EP0968433A1 (fr) | 2000-01-05 |
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