WO2005095575A2 - Dispositif d’incubation pour lames de serologie et d’histologie - Google Patents
Dispositif d’incubation pour lames de serologie et d’histologie Download PDFInfo
- Publication number
- WO2005095575A2 WO2005095575A2 PCT/FR2005/000770 FR2005000770W WO2005095575A2 WO 2005095575 A2 WO2005095575 A2 WO 2005095575A2 FR 2005000770 W FR2005000770 W FR 2005000770W WO 2005095575 A2 WO2005095575 A2 WO 2005095575A2
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- WO
- WIPO (PCT)
- Prior art keywords
- cell
- blade
- support
- incubation
- slide
- Prior art date
Links
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/30—Staining; Impregnating ; Fixation; Dehydration; Multistep processes for preparing samples of tissue, cell or nucleic acid material and the like for analysis
- G01N1/31—Apparatus therefor
- G01N1/312—Apparatus therefor for samples mounted on planar substrates
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/52—Supports specially adapted for flat sample carriers, e.g. for plates, slides, chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0636—Integrated biosensor, microarrays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0822—Slides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/0877—Flow chambers
-
- 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
- B01L2300/10—Means to control humidity and/or other gases
-
- 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
- B01L2300/18—Means for temperature control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0487—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure fluid pressure, pneumatics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- 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
- B01L3/5025—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures for parallel transport of multiple samples
Definitions
- the present application relates to an incubation device for serology or histology supports. It also relates to any device comprising such a device, as well as the use of these devices and / or devices in methods of analysis or diagnosis.
- a flat and solid surface typically a microscope slide
- a liquid phase typically a liquid phase
- the biological sample to be tested is contained in the liquid phase, and reacts with a slide carrying reactive elements, for example proteins, cells, DNA sequences, bacteria , viruses, etc., previously deposited on the slide.
- the slide is brought into contact with a developing reagent.
- the biological sample to be tested is deposited on the slide, the reactive elements (antibodies, DNA or RNA probes, etc.) and developers then being in the liquid phase. This is the case, for example, in histological tests where the sample is a section of tissue (s) from the body of a patient.
- a random access blade incubator which can treat a blade in a short time (typically in less than an hour), and respond to emergency diagnoses in terms of infectious diseases.
- the present invention provides a solution to these needs.
- the present application relates to a new incubation device for serology or histology slides. It also relates to any device comprising such a device, as well as the use of these devices and / or devices in methods of analysis or diagnosis.
- the object of the present invention is in particular to provide an incubation device for serology or histology slides which avoids the disadvantages mentioned above, ensuring contacting of the reactive elements in a reliable and automatic manner.
- a first object of the invention lies more particularly in an incubation device for serology or histology slides having a reactive zone, characterized in that: - it comprises a solid support (1) having a flat surface on its face upper, in which is arranged at least one alvélole (2) open on the surface of the support, the opening having an area greater than that of the reactive zone of the blade and less than that of the surface of the blade, - the bottom of the cell comprises at least two orifices (4) allowing the circulation of fluid (s) in the cell, - the contour of the opening of the cell is advantageously provided with a means making it possible to ensure a seal, preferably a seal (5); and - the device also comprises means for placing and / or blocking a serology or histology slide (6) so that the reactive area of the slide is opposite the opening of the cell to the surface of the support, the blade and the support thus cooperating to form a sealed incubation chamber.
- the device also comprises means for supplying fluid (s) to the cell (or the incubation chamber), and / or - the support comprises a plurality of cells as defined above, allowing the incubation in parallel of several samples, arranged on the same slide or on separate slides, and / or - the device further comprises means for automatic feeding of slides and, optionally, a blade identifier reader, and / or - the device further comprises blade transfer means towards a signal reading device, and / or - the bottom of the cell comprises three orifices, one for the fluid outlet, one for the inlet of liquids and one for the inlet of gases.
- the object-slide (6) constitutes the removable upper face of an incubation chamber, said chamber being sealed and provided with orifices (4) allowing the circulation of the various fluids necessary for the development of serology or histology reactions.
- the placing of the sample (in serological mode) or of the reagents (in histological mode) is not done on the slide but directly in the device at a location provided for this purpose, - the successive reagents are brought into contact with the slide by a laminar sweep strictly limiting the shearing, - the operations follow one another "with lost reagent", after each reaction the reagent used (or the excess of the reagent) is removed, and n is not reused.
- Another subject of the invention relates to a method of serological analysis comprising the incubation of a serology slide comprising a reactive zone comprising a series of deposits of infectious agents, pathogens, allergens or autoantigens with a serum sample of a patient, or a dilution thereof, then the revelation of the antibodies of the sample fixed on the deposits by means of labeled reagents, characterized in that the incubation is carried out in a device as defined above.
- the sample to be tested can be introduced into a cell before the positioning of the slide, then the slide is applied to the surface of the support so as to form the sealed incubation chamber in which the reactive area of the slide is at sample contact.
- the sample to be tested can be introduced (pumped) into the incubation chamber formed by the blade placed on the cell.
- Another subject of the invention relates to a method of histological analysis comprising the incubation of a histology slide comprising a reactive zone comprising a tissue sample from a patient with a solution of specific antibodies, then the revelation of the antibodies of the solution fixed on the sample by means of labeled reagents, characterized in that the incubation is carried out in a device as defined above.
- the invention also relates to the use of a device as defined above for serological or histological analysis.
- kits in particular biological analysis kits, comprising a device as defined above.
- the invention is applicable in numerous fields, in particular for histological or serological analysis in a medical, veterinary, environmental, food-processing, etc. context.
- the invention relates to a device suitable for the analysis of serology or histology slides.
- the device advantageously comprises a solid support (1) having a flat surface on its upper face in which is arranged at least one alvélole (2) open on the surface of the support, the support cooperating with the surface of the blade to form, at the level of the cell, a sealed incubation chamber whose blade represents the removable upper face, the bottom (that is to say the entire wall constituting the cell) of the cell further comprising at least two orifices (4) allowing the circulation of fluid (s) (liquids, gases) in the incubation chamber thus formed.
- the support used can be of various shapes and sizes, insofar as it has a flat surface, preferably on the upper face.
- the support is typically rectangular in shape, adapted to the usual shape of the serology or histology slides, even if any other shape can be envisaged (square, circular, triangular, etc.).
- the support of the cell can be of size limited to the contour of the surface ensuring the seal, typically a joint limiting the cell.
- the thickness of the support must be sufficient to accommodate the cell (a cavity), of a suitable volume to form an incubation chamber.
- the incubation chamber and therefore the cell
- the support has a volume of between 5 and 500 ⁇ l, for example between 10 and 350 ⁇ l, and the support should have a thickness greater than 3 mm, for example between 0, 5 and 3 cm.
- the solid support can be produced from various materials, possibly mixed. It can in particular be composed (or based on) plastic material, metal and / or any rigid material resistant to saline solutions and to temperatures greater than or equal to 37 ° C.
- the solid support is composed (or based, that is to say comprises) of polymethacrylate, polyester, polycarbonate, nylon (delrin, rilsan) or stainless steel, alone or in mixtures.
- the cell formed in the support can take different forms, depending on the applications envisaged and / or according to the type of support used. A priori, there is no specific constraint as to the shape of the cell, provided that the opening has an area greater than that of the reactive zone of the blade and less than that of the surface of the blade, to allow the formation of the incubation chamber. Furthermore, as described in the following text, the support may include a plurality of cells, allowing the separate analysis of several samples. In preferred implementation variants, the cell (and its opening) has a circular or elongated shape, with radii of curvature as large as possible. It is understood that other shapes can be envisaged (rectangular, elliptical, etc.).
- the contour of the opening of the cell is preferably provided with a seal (5), making it possible to seal the incubation chamber.
- the seal can be produced, for example, in or from any flexible material, preferably latex, synthetic rubber or silicone.
- the seal can be flat or O-shaped. It can have a variable diameter or thickness, typically between 0.5 and 5 mm.
- the orifices (4) provided in the bottom of the cell preferably have a small diameter, since they are essentially intended to ensure the circulation of liquids and / or gases. Typically, their diameter is between 0.1 and 3 mm, preferably between 0.3 and 2 mm, more preferably between 0.5 and 2 mm.
- the orifices are advantageously arranged on either side of the cell, that is to say typically diametrically opposite. Thus, when the incubation chamber is formed by placing the blade, the orifices are located on either side of the reactive zone, and allow scanning of the latter.
- the cell comprises two diametrically opposite orifices, one for the inlet of the fluids, the other for the outlet of the fluids.
- the bottom of the cell comprises three ports: one outlet port and two inlet ports, one for liquids and the other for gases, especially for drying air.
- the outlet orifice is arranged on one side of the bottom of the cell and the two inlet orifices are arranged on the diametrically opposite side, typically close to one another. (see Figure 8A).
- the device further comprises means for placing and / or blocking a serology or histology slide so that the reactive area of the slide (6) is in face of the opening of the cell on the surface of the support, the blade and the support thus cooperating to form a sealed incubation chamber.
- the means for placing and / or blocking the blade on the support may consist, for example, of a countersink, a shoulder or pins. Such means make it possible to force a correct positioning of the blade so that the reactive zone is located opposite the opening of the cell.
- a recess (13) is provided in the support, at one end of the location of the blade, to facilitate disengagement by simple pressure, and / or a movable and articulated cover (7) makes it possible to block the blade (support and hold), once in position.
- the means for arranging and / or blocking the blade comprise an articulated frame (14), in particular with a slide and, possibly, locking means.
- the articulated frame advantageously comprises an articulation or a hinge allowing the easy and guided positioning of the blade (and thus the opening and closing of the incubation chamber), as well as, optionally, a cover (141).
- the locking means may comprise, for example, a thumb wheel (142) actuating a locking cam, or even an electromagnet.
- the means for placing and / or blocking the blade consist of a fixed cover (7) provided with a location (71) allowing the blade to be put in place (6), the support block of the cell being movable relative to said cover.
- the support of the cell which can be moved in the vertical direction so as to close the incubation chamber when the blade is in place.
- the blades are advantageously slid into a location (71) (for example a groove) formed in the cover, and the mounting of the support closes the incubation chamber (and places the reactive zone in contact with liquids before or after introduced in it).
- the support and the fixed cover are linked by means for guiding the movement of the support and advantageously comprises means for controlling this movement, for example electrical or mechanical.
- the cover is advantageously pierced with an opening (3) perpendicular to the incubation cell, so as to allow the introduction of the sample into said cell before placing in place of the blade, if applicable.
- Figure 4 shows this arrangement in perspective.
- a particular object of the present invention relates to a device for incubating serology or histology slides presenting a reactive zone, characterized in that it comprises: - a solid support (1) movable having a flat surface on its upper face, in which is arranged at least one cell (2) open on the surface of the support, the opening having an area greater than that of the reactive zone of the blade and less than that of the surface of the blade, in which the bottom of the cell comprises at least two orifices (4) allowing the circulation of fluid (s) in the cell and the contour of the opening of the cell is provided with a means making it possible to ensure a seal; - a fixed cover (7) provided with a location (71) allowing the positioning of the blade, and with an opening (3); and - means for guiding the essentially vertical movement of the movable support (1) towards the fixed cover (7) to allow forming a sealed incubation chamber between the cell and the blade, when the latter is in place, the reactive area of the slide being contained in said incubation chamber.
- the means for guiding the vertical movement of the support comprise a hinge, preferably consisting of a steel blade, placed at a sufficient distance from the reactive zone of the blade when the latter is in place to ensure essentially uniform pressure on the cell seal, typically at least 5, 6, or 7 cm, 10 cm for example, and fixed to both the cover and the cell support (see Figure 8B) .
- the mounting of the support, of the order of 3 mm, can be ensured manually, for example a cam lever, or mechanically by an electric motor or a jack.
- the device of the invention further comprises means for ensuring a supply of fluid (s) to the incubation chamber.
- supply means typically comprise at least one fluid supply reservoir (8) connected to a first orifice of the cell, called the inlet orifice, by a tubing system for the introduction of fluid (s) into the alveolus, and a fluid recovery tank (9) connected to a second orifice of the alveolus, said outlet orifice, by a system of tubing, for the elimination of fluids, said systems being connected to one or more pumps (10, 11).
- a single pump preferably a suction pump
- the device of the invention further comprises means for ensuring a supply of fluid (s) to the incubation chamber.
- the pressurization of the tanks is used to move the fluids, each supply channel is then provided not only with a valve but also with a flow adjustment element such as a needle.
- the device comprises several (eg 2 to 6) fluid supply reservoirs (8) connected to the inlet orifice, each reservoir being connected to a valve (12).
- the presence of several supply tanks allows the introduction of different reagents (liquids, gases) in the incubation chamber, according to kinetics, doses and / or suitable programs.
- the presence of valves makes it possible to individually regulate the supply of each of the fluids (or from each of the supply tanks present).
- a pump of the peristaltic type is used, preferably with reversible movement, ensuring the successive placement of the liquids by suction, each liquid being under the control of a valve.
- the pump flow can vary for example from 0.1 to 10 ml / min.
- a syringe-type pump can be used, with the same flow rates.
- the device further comprises an additional pump (11) for drying the blade or for cleaning the device. It is advantageously a non-volumetric air pump, with a flow rate of, for example, between 100 and 3000 ml / min. It is understood that these figures are provided for information only, and that certain embodiments may go beyond these limits and be adapted by those skilled in the art.
- Both pumps can be connected to the same outlet tubing, each controlled by a valve.
- the valve In the case of a peristaltic pump the valve is not necessary.
- the air pump for drying can be either suction, in which case it is connected on the same side as the liquid suction pump, or of the blowing type, in which case it is connected on the other side (as it is shown in Figure 5).
- the valves used are advantageously electrically controlled.
- valves control the arrival of the reagents
- 0 to 3 valves control the suction pumps.
- one of the valves is used to ensure the atmospheric pressure, facilitating the opening and closing of the incubation chamber.
- the suction circuit can be switched directly to one or the other fluid supply tanks (8) by a three-way valve ( Figure 9).
- the presence of this auxiliary circuit eliminates bubbles which can enter the system when changing or filling the tank.
- the device can be limited to a single slide but, in an advantageous embodiment, several slides are incubated in parallel.
- several cells are advantageously provided in the support (or several supports are used), each cell comprising its set of solenoid valves (12).
- the solenoid valves are controlled synchronously and a multi-channel preristaltic pump ensures the transfer of the reagents simultaneously into the different cells.
- An auxiliary contact may be provided to prevent the opening of the valves on an unused cell.
- a particular object of the invention resides in a device in which the support comprises a plurality of cells as defined above, allowing the incubation in parallel of several serology or histology slides.
- each cell is provided with fluid supply means and the cell-supply system units thus formed are arranged to operate in parallel, using the same fluids, according to synchronous or offset sequences.
- the liquid transfer pump is suction
- the air pump is blower and connected to the inlet port of the cell, so that the fluids always circulate in the same direction and s 'discharge into a single receptacle (9).
- the device of the invention further comprises means for automatically feeding blades and, optionally, a blade identifier reader.
- the blade can be identified by a bar code or, preferably, by an electronic label.
- the device of the invention further comprises means for transferring the blade to a signal reading device, in particular an optical reader in order to carry out observations and measurements of the biological characteristics of the samples.
- the signal reading device is integrated in the support and / or the cover of the incubation device according to the invention.
- the support material is transparent and the bottom of the cell is polished so that the optical observation device can be integrated into the incubation device.
- the incubation device of FIG. 4 can be provided with a fluorescence detection optic with a light-emitting diode integrated in the support and a retractable objective coming into contact with the blade.
- the bottom of the cell in line with the reactive zone of the blade consists of the plane side of a plano-convex lens, the first lens of an objective for collecting the light emitted by the sample.
- the excitation source is placed above the slide.
- the term "blade” means any rigid object-carrying element which can be used to immobilize a biological deposit, thus delimiting a reactive zone. It can be for example a solid coverslip, a membrane, a filter, etc.
- the blade can be made of (or based on) any known and conventional material, such as plastic, glass, nylon, ceramic, metal, biological polymers, silica, etc.
- Preferred slides are glass microscope slides. Their dimensions are generally standard, about 25mm x 75mm.
- the blades are provided with a polarizing device, for example in the form of a notch in a corner.
- FIG. 1 is a top view of the incubation cell in serology version. Scale drawing. (1): hollowed out support for the incubation cell (2) and a blade imprint. (4): inlet and outlet ports for liquids and gases. (5): seal. (13): release of the blade.
- Figure 2 is a top view of the incubation cell in histology version. Scale drawing.
- Figure 3 shows a block carrying the incubation cell according to the invention with fixed support and movable cover.
- FIG. 4 represents a device according to the invention with fixed cover (7) and mobile cell support (1), provided with means for guiding and positioning the blade; (3) opening of the cover, allowing the introduction of the sample into the cell.
- the mechanism for raising and lowering the block is not shown.
- Figure 5 represents a schematic section of principle of circulation in serology version.
- the solenoid valve block (12) consists of a methacrylate base pierced with fine pipes and on which the valves are bolted.
- FIG. 6 is a block diagram of the circulation in histology version. There is no drying device, considered optional in histology.
- Figure 7 shows an arrangement of a four-slide incubator according to the invention, seen from above on a 1 / 2- scale. The slide locking devices are shown in gray. Each device consists of a hinged (metal) frame (14) carrying a transparent cover (141), as well as a thumb wheel (142) actuating the locking cam (not shown). The large circles are the locations of the buffer and water bottles, the small shaded circles are the locations of the restricted use reagents, such as the staining agents.
- FIG. 8A represents a diagram of a cell with three orifices, two for the entry of fluids and one for their exit;
- Figure 8B shows a device according to the invention provided with means for guiding and positioning the blade (6), consisting of a hinge comprising a steel blade (foil) fixed to the cover (7) and to the support of the socket (1).
- the support is mounted manually by a cam lever.
- FIG. 9 represents a hydraulic assembly diagram (fluid wiring) of a device of the invention comprising three-way valves (symbol Y) making it possible to switch a suction circuit directly to one or the other of the tanks. supply of liquids (8) by an auxiliary circuit.
- FIG. 10 represents an arrangement of an incubator with four blades according to the invention, seen in perspective perspective. The incubation units correspond to the block diagrams in Figure 8.
- the invention can be implemented for the analysis of serology slides.
- the slide carries a series of biological deposits ("spots"), for example of infectious, pathogenic agents, autoantigens or allergens. Deposits are carefully identified, this identification constituting an identification code.
- the liquid sample to be tested is a patient serum, generally diluted in an appropriate buffer.
- the reagents used are: 1) The agents for revealing the antibodies of the patient possibly attached to the slide and, preferably, antibodies of animal origin coupled to marker molecules, for example fluorescent.
- Antibodies of animal origin (goat, mouse, rat, rabbit) are preferably of two types: some recognize type M immunoglobulin, others type G immunoglobulin. Each type of antibody is coupled to a specific marker.
- the former are coupled to fluorescein and the latter to rhodamine.
- dyes and / or markers are possible, such as the fluorochromes Alexa Fluor 488 and Alexa Fluor 594, provided that the excitation or emission spectra differ.
- dyes and / or markers can be found commercially, for example from Sigma (Saint-Louis, Mo, USA), Molecular Probes (Euzzo, Oregon, USA) or FluoProbes, including in form conjugated to anti IgG antibodies and anti IgM. In the invention they are preferably used in diluted mixtures so as to carry out rapid and specific labeling, according to the procedures known to those skilled in the art.
- Incubations can be carried out at laboratory temperature, or at 37 ° C if an accelerating effect is sought. They proceed in successive phases: the first step is the placing in the cell (2) or in the incubation chamber of the liquid sample to be tested, generally between 10 and 100 ⁇ l.
- the sample can be introduced automatically by means of the pumping system or, in a preferred mode, by pipetting into the open cell, before the application of the blade.
- the blade (6) is put in place, ensuring that the reactive zone is brought into contact with the liquid sample to be tested.
- the blade is applied to the contour of the cell so as to provide a seal.
- the device rinses the slide with a rinsing solution, then supplies the labeled development reagents (eg, fluorescent antibody conjugates). After a new incubation, the incubation chamber is rinsed again. In a preferred mode, the last operation is air sweep drying. During the automatic incubation process, the reagents are therefore successively introduced by pumping and come into contact with the reactive area of the slide, with pause times allowing the reaction-diffusion coupling. At the end of the process, the blade may or may not be dried by a gas stream. To ensure high sensitivity, each reaction must be as complete as possible, with the exception of the first, which can be "controlled by kinetics" to better reflect the differences from one patient to another.
- the labeled development reagents eg, fluorescent antibody conjugates
- the invention also allows great specificity, that is to say in particular the absence of artifacts due to the persistence of the previous reagent in the following incubation.
- several incubation units, alveolus-blade holder-pumping system are combined to operate in parallel according to synchronous or offset sequences, using common reagent reservoirs.
- the invention can also be implemented for the analysis of histology slides.
- the slide In the histological mode, the slide carries a sample of tissue from a patient, which can be in the form of a frozen and dried section or a dewormed section, for example.
- the reagents used in this embodiment are: 1) The specific antibody or antibodies recognizing the elements of interest on the sample section. These antibodies are preferably monoclonal, they recognize either differentiation antigens, such as cytokeratin, or tumor antigens, such as carcinoembryonic antigen. They can be directly labeled or revealed by secondary antibodies themselves labeled either with fluorescent molecules or with enzymes.
- Incubations can be carried out at laboratory temperature, or at 37 ° C if an accelerating effect is sought. They proceed in successive phases: the first step is the establishment of the specific antibody, which can be a monoclonal antibody suitably diluted according to the rules known to those skilled in the art.
- the antibody can be introduced automatically by means of the pumping system, or in a preferred mode by pipetting into the open cell, before application of the slide.
- Several antibodies can be successively brought into contact with the slide, by means of the incubator, provided that in fine the markings are distinguished from each other. Those skilled in the art will have no trouble programming the appropriate sequence to carry out the markings that they have chosen. In a particular mode, drying by air sweeping is carried out to clean the device, after removal of the blade.
- Step 1- The serum is diluted 1/100 in PBS-milk (0.15 M NaCl, phosphate pH 7 0; 01 M, 50 ml + 1.5 g of milk).
- Step 2- 40 ⁇ l of sample (diluted serum) are introduced into the open chamber.
- the test slide (Inodiag) is placed above, the spots in contact with the sample.
- the cell (incubation chamber) is closed and the incubation is continued for 20 minutes.
- Step 3- The “buffer” solenoid valve is then opened and the suction pump (10) put into action.
- the rinsing is carried out with 100 ⁇ l of PBS buffer containing 0.05% tween 20, for a period of approximately 30 seconds. This is done three times in succession. Step 4- The “anti IgM + IgG” solenoid valve is then opened and the suction pump (10) put into action. This allows the introduction into the incubation chamber of a mixture of anti IgG and anti IgM antibodies (80 ⁇ l, diluted in PBS).
- This reagent is fluorescent.
- Step 5- The "water” solenoid valve is open and the suction pump (10) is activated for approximately 30 seconds.
- Step 6- Finally, the solenoid valve linked to the blower air pump (11) is open, as well as the solenoid valve directly linked to the outlet tank (9). The air pump (11) is operated for 20 seconds to dry the blade.
- Step 1 The sample (100 ⁇ l of primary antibody (ref .: 10032.1, clone: B56, Histopathology, Pécs, Hungary) diluted 1/100) is introduced into the open chamber.
- Step 2- The slide (6) object holder (tissue section 4 ⁇ m thick, human lymph node) is placed above, the section in contact with the diluted antibody.
- the cell incubation chamber
- the incubation is continued for 20 minutes.
- Step 3- The “buffer” solenoid valve is open and the suction pump (10) is started. Rinse with 100 ⁇ l of buffer, wait 3 minutes. This is done three times in succession.
- Step 4- The “Detection reagent” solenoid valve is then opened and the suction pump (10) put into action. This allows the introduction into the incubation chamber of the detection reagent (100 ⁇ l, polymer conjugated to the enzyme peroxidase). Incubation 20 minutes. Step 5- Then, rinses identical to the previous step are carried out.
- Step 6- The “chromogenic substrate” solenoid valve is then opened and the suction pump (10) activated. This allows the introduction into the incubation chamber of the development reagent of a mixture of diamino-benzidine and hydrogen peroxide (100 ⁇ l). Incubation 20 minutes.
- Step 7- The “water” solenoid valve is open and the suction pump (10) is started. Add distilled water to stop the enzymatic action.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05746957A EP1730486A2 (fr) | 2004-03-31 | 2005-03-30 | Dispositif d"incubation pour lames de serologie et d"histologie |
US10/599,454 US8383069B2 (en) | 2004-03-31 | 2005-03-30 | Incubation device for serology and histology slides |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0403365A FR2868431B1 (fr) | 2004-03-31 | 2004-03-31 | Dispositif d'incubation pour lames de serologie et d'histologie |
FR0403365 | 2004-03-31 |
Publications (2)
Publication Number | Publication Date |
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WO2005095575A2 true WO2005095575A2 (fr) | 2005-10-13 |
WO2005095575A3 WO2005095575A3 (fr) | 2006-03-16 |
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ID=34944396
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Application Number | Title | Priority Date | Filing Date |
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PCT/FR2005/000770 WO2005095575A2 (fr) | 2004-03-31 | 2005-03-30 | Dispositif d’incubation pour lames de serologie et d’histologie |
Country Status (4)
Country | Link |
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US (1) | US8383069B2 (fr) |
EP (1) | EP1730486A2 (fr) |
FR (1) | FR2868431B1 (fr) |
WO (1) | WO2005095575A2 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1988384A3 (fr) * | 2006-03-13 | 2008-11-19 | Adrian Schubert | Dispositif et procédé de reconnaissance et d' identification de structures cibles |
US20120077222A1 (en) * | 2009-06-12 | 2012-03-29 | Laboratorios Ordesa, S.L. | Method and Device for Determining the Microbiological Contamination in an Environment |
WO2013111025A1 (fr) * | 2012-01-24 | 2013-08-01 | Koninklijke Philips N.V. | Dispositif à écoulement continu de coloration et/ou d'analyse d'un échantillon biologique |
WO2014132094A2 (fr) | 2013-02-28 | 2014-09-04 | 3Dhistech Kft. | Système de traitement automatisé de lames |
Families Citing this family (6)
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US20140055853A1 (en) * | 2012-08-27 | 2014-02-27 | General Electric Company | Open top microfluidic device for multiplexing |
DE102014001481A1 (de) * | 2013-10-28 | 2015-04-30 | Euroimmun Medizinische Labordiagnostika Ag | Verbesserte Vorrichtung und Verfahren für Reaktionen zwischen einer festen und einer flüssigen Phase |
CN107200245B (zh) * | 2016-03-16 | 2021-05-04 | 奥的斯电梯公司 | 用于多轿厢电梯的乘客引导*** |
CN110385210A (zh) * | 2019-06-26 | 2019-10-29 | 万兆 | 保湿雾化装置及具有它的病理学染色机 |
JP7330065B2 (ja) * | 2019-10-30 | 2023-08-21 | サクラ精機株式会社 | 組織片処理装置 |
TWI740420B (zh) * | 2020-03-19 | 2021-09-21 | 邦睿生技股份有限公司 | 測試生物樣本品質確效試片及測試生物樣本品質檢測機之確效方法 |
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WO2000063670A1 (fr) * | 1999-04-20 | 2000-10-26 | Cytologix Corporation | Echange de fluides dans une chambre sur une lamelle de microscope |
DE10004801A1 (de) * | 2000-02-03 | 2001-08-09 | Heinrich Gausepohl | Vorrichtung zur Durchführung von Färbe- und Hybridisierungsreaktionen |
US6395536B2 (en) * | 1995-03-28 | 2002-05-28 | Medical Research Council | Sample processing device with a chamber forming member |
Family Cites Families (6)
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US4974952A (en) * | 1988-03-31 | 1990-12-04 | Focht Daniel C | Live cell chamber for microscopes |
NO922247L (no) * | 1991-07-03 | 1993-01-04 | Hafslund Nycomed As | Maalekammerinnsats for bilateral og unilateral blodproppdannelse i delvis stenoserte blodkar, med blandeanordning |
US5414556A (en) * | 1993-03-29 | 1995-05-09 | Focht; Daniel C. | Securing and locking assembly for live cell chambers |
US6673620B1 (en) * | 1999-04-20 | 2004-01-06 | Cytologix Corporation | Fluid exchange in a chamber on a microscope slide |
CA2450676C (fr) * | 2001-03-09 | 2010-03-30 | Biomicro Systems, Inc. | Procede et systeme d'interfacage microfluidique avec des reseaux |
US20030087292A1 (en) * | 2001-10-04 | 2003-05-08 | Shiping Chen | Methods and systems for promoting interactions between probes and target molecules in fluid in microarrays |
-
2004
- 2004-03-31 FR FR0403365A patent/FR2868431B1/fr not_active Expired - Fee Related
-
2005
- 2005-03-30 WO PCT/FR2005/000770 patent/WO2005095575A2/fr active Application Filing
- 2005-03-30 US US10/599,454 patent/US8383069B2/en not_active Expired - Fee Related
- 2005-03-30 EP EP05746957A patent/EP1730486A2/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US6395536B2 (en) * | 1995-03-28 | 2002-05-28 | Medical Research Council | Sample processing device with a chamber forming member |
WO2000063670A1 (fr) * | 1999-04-20 | 2000-10-26 | Cytologix Corporation | Echange de fluides dans une chambre sur une lamelle de microscope |
DE10004801A1 (de) * | 2000-02-03 | 2001-08-09 | Heinrich Gausepohl | Vorrichtung zur Durchführung von Färbe- und Hybridisierungsreaktionen |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1988384A3 (fr) * | 2006-03-13 | 2008-11-19 | Adrian Schubert | Dispositif et procédé de reconnaissance et d' identification de structures cibles |
US20120077222A1 (en) * | 2009-06-12 | 2012-03-29 | Laboratorios Ordesa, S.L. | Method and Device for Determining the Microbiological Contamination in an Environment |
WO2013111025A1 (fr) * | 2012-01-24 | 2013-08-01 | Koninklijke Philips N.V. | Dispositif à écoulement continu de coloration et/ou d'analyse d'un échantillon biologique |
WO2014132094A2 (fr) | 2013-02-28 | 2014-09-04 | 3Dhistech Kft. | Système de traitement automatisé de lames |
US9625478B2 (en) | 2013-02-28 | 2017-04-18 | 3Dhistech Kft. | Automated integrated slide-processing system |
Also Published As
Publication number | Publication date |
---|---|
FR2868431B1 (fr) | 2006-05-26 |
US20090011425A1 (en) | 2009-01-08 |
WO2005095575A3 (fr) | 2006-03-16 |
US8383069B2 (en) | 2013-02-26 |
EP1730486A2 (fr) | 2006-12-13 |
FR2868431A1 (fr) | 2005-10-07 |
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