EP4415883A1 - Procédé de fabrication d'une carte d'analyse biologique comprenant une chambre de pré traitement munie de corps solides - Google Patents
Procédé de fabrication d'une carte d'analyse biologique comprenant une chambre de pré traitement munie de corps solidesInfo
- Publication number
- EP4415883A1 EP4415883A1 EP22801509.5A EP22801509A EP4415883A1 EP 4415883 A1 EP4415883 A1 EP 4415883A1 EP 22801509 A EP22801509 A EP 22801509A EP 4415883 A1 EP4415883 A1 EP 4415883A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- biological
- solid bodies
- agglomerate
- mixture
- biological sample
- 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.)
- Pending
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
- B01L3/502707—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 manufacture of the container or its components
-
- 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
- B01L2200/0647—Handling flowable solids, e.g. microscopic beads, cells, particles
-
- 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
- B01L2200/12—Specific details about manufacturing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0816—Cards, e.g. flat sample carriers usually with flow in two horizontal directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0887—Laminated structure
-
- 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
- B01L2400/043—Moving fluids with specific forces or mechanical means specific forces magnetic forces
Definitions
- the invention belongs to the field of biological analysis, and more particularly relates to a method for manufacturing a biological analysis card comprising at least one chamber for pre-treatment of a biological sample, provided with solid bodies.
- the pretreatment includes separation of components of the biological sample to make said components of the biological sample available for biological analysis processing.
- the biological sample can be, for example, blood or another organic fluid, and the separation of the components can be, for example, an isolation of the formed elements from the blood or a lysis of biological cells from the biological sample.
- Several methods of analyzing a biological sample may involve the need to make available components of the biological sample introduced into a biological analysis card. It is then necessary to implement a step of pretreatment, or preparation, of the biological sample in a pretreatment chamber, or preparation chamber, of the biological analysis card.
- the analysis processing may focus on only the formed elements (erythrocytes, leukocytes and blood platelets) of a blood sample, and it is necessary to implement pre-processing to separate the formed elements and the blood plasma.
- an immunoassay or immunological test is based on the specific binding capacity between antigens and antibodies, or even using immunoglobulin, contained in the plasma, which implies isolating them from a blood sample which contains them.
- PCR polymerase chain reaction
- the use of solid bodies such as balls makes it possible to implement the pre-treatment mechanically.
- the pre-treatment is implemented mechanically in the sense that it does not essentially call upon chemical reactions with the solid bodies.
- a lysis obtained by means of a surfactant or detergent causing the cells to burst by dissolution or destruction of the membrane is a chemical lysis, and not a mechanical one.
- lysis can be obtained by mechanical means which, by physical pressure of solid bodies on the membranes of biological cells, cause said membranes to rupture.
- magnetic beads are used. These magnetic beads are mixed with the sample and subjected to the effect of a variable external magnetic field which causes a stirring movement of the magnetic beads in the sample, during which the contact between the magnetic beads and the biological cells results in rupture of their membranes.
- Solid bodies such as beads can be used to implement the separation of sample components.
- optionally magnetic balls are used. These beads are mixed with the sample and subjected to fluid pressure waves in order to mix them in the sample, during which the contact between the beads and the formed elements of the whole blood leads to their separation.
- These balls can be predisposed in a sample pre-treatment chamber of an analysis card which is configured to receive the biological sample generally in liquid form.
- beads are supplied suspended in a liquid solution, typically water, and this liquid mixture is deposited in the sample pre-treatment chamber.
- This deposition can for example be 4 pL or 5 pL and can for example be done manually with a metering pipette, or using a robot.
- the liquid mixture thus deposited in the pre-treatment chamber is then dried. Once the drying is done, the beads are available in the sample pre-treatment chamber which will receive the biological sample.
- Drying the liquid mixture requires exposing the mixture deposit to the open air for a time sufficient to dry the deposited mixture. Drying takes time and therefore slows down the manufacturing process of the analysis card, since the analysis card cannot be closed and sealed until the drying is complete, while having a sufficiently advanced manufacture to allow the implementation of the mixture.
- a spatial distribution of the deposit requires a sufficient surface in the pretreatment chamber, which conflicts with the requirements of miniaturization and material savings inherent in the manufacture of a consumable such as the analysis card.
- the mix deposit itself can be difficult.
- the balls tend to settle in the mixture to be deposited. Consequently, the balls tend to settle at the bottom of the reservoir of the tool used for removal, all the more so when this tool is used intermittently, intermittently imposed by the need to dry the mixture deposits, which prevents continuity of production. This can result in heterogeneity in the deposited mixture.
- the invention therefore aims to allow the manufacture of a biological analysis card comprising a sample pre-treatment chamber provided with solid bodies configured to mechanically cause a separation of components of a biological sample which is rapid and simple. to be implemented, in particular concerning the placement of solid bodies in the biological sample pre-treatment chamber.
- the invention proposes a method for manufacturing a biological analysis card comprising a pre-treatment chamber for a biological sample configured to receive a biological sample comprising biological components such as biological cells, said chamber pre-treatment comprising solid bodies configured to mechanically cause a separation of all or part of the components of the biological sample in order to make all or part of said components available components of the biological sample for biological analysis treatment, the method comprising a step of depositing the solid bodies in the pre-treatment chamber in the form of a solid agglomerate, said agglomerate comprising the solid bodies and a binder which binds solid bodies between them.
- the invention by introducing the manufacture and removal of an agglomerate of solid bodies, allows easy and rapid placement of the solid bodies in the sample pretreatment chamber, not requiring the immobilization of the analysis for a drying time. As the drying no longer takes place in the pre-treatment chamber, there is no longer a requirement for sufficient space to allow the mixture to be spread out in several separate drops in order to speed up the drying, and constraints size or shape of the pre-treatment chamber can be relaxed.
- the invention is advantageously completed by the various following characteristics taken alone or according to their various possible combinations.
- the binder is soluble in water.
- the solid bodies are magnetic, and are therefore capable of being moved by a magnetic field external to the analysis card.
- the solid bodies are metal balls.
- the binder mainly contains carbohydrates.
- the agglomerate comprises at least 100 solid bodies.
- the method comprises a prior step of forming the agglomerate, comprising the following steps: a) depositing a volume of mixture of solid bodies and binder on a drying surface, forming a deposit of mixture, b) drying the volume of mixture to obtain an agglomerate on the drying surface, c) removing the agglomerate from the drying surface.
- the mixture is deposited in the form of a drop, and the volume of mixture is less than 12 ⁇ L.
- step c) the removal of the agglomerate from the drying surface is carried out by suction of the agglomerate.
- the invention also relates to an analysis card manufactured according to the method of the invention, the biological analysis card comprising a pre-treatment chamber configured to receive a biological sample comprising biological components such as biological cells, said pre-treatment chamber (4) comprising solid bodies configured to cause separation of all or part of the biological components of the biological sample in order to make available all or part of said components of the biological sample for a biological analysis treatment, the solid bodies in the sample pre-treatment chamber being present in the form of a solid agglomerate, said agglomerate comprising the solid bodies and a binder which binds the solid bodies together.
- Figure 1 shows a top view of an example of an analysis card comprising a sample pre-treatment chamber, according to a possible embodiment of the invention
- Figure 2 shows enlarged views of different phases of manufacturing and placing an agglomerate according to one possible embodiment of the invention
- FIG. 3 is a diagram showing steps in the method of manufacturing an analysis card according to a possible embodiment of the invention.
- Figure 1 shows an example of a biological analysis board configured to receive a biological sample comprising biological components such as biological cells.
- the biological sample is generally liquid, being put into solution beforehand if necessary.
- a biological cell comprises a plasma membrane delimiting its internal environment.
- a biological cell is for example a cell of a complex organism, a bacterium, a virus, a yeast, etc.
- a biological analysis corresponds to any process comprising a test for the qualitative (measurement of the presence) or quantitative (determination of the concentration) of molecules in a sample of biological material, such as for example a test for the detection of pathogenic cells, a test for in vitro diagnostics, an immunological test, a screening test, etc.
- a test for the qualitative (measurement of the presence) or quantitative (determination of the concentration) of molecules in a sample of biological material such as for example a test for the detection of pathogenic cells, a test for in vitro diagnostics, an immunological test, a screening test, etc.
- the biological sample can be in liquid form or in the form of a fluid and comprising biological components such as biological cells, and can for example be a bodily fluid such as blood, lymph, cerebrospinal fluid, amniotic fluid, urine, mucus, etc., or suspended tissue extracts or shreds, such as a nasopharyngeal or oral sample, etc.
- a bodily fluid such as blood, lymph, cerebrospinal fluid, amniotic fluid, urine, mucus, etc., or suspended tissue extracts or shreds, such as a nasopharyngeal or oral sample, etc.
- the analysis card 1 generally comprises a structure 2, generally made of plastic material, which forms a matrix in which the other elements of the analysis card 1 are formed or inserted.
- the structure 2 can advantageously comprise at least two plastic films flexible or flexible, preferably transparent, sealed to each other except in the zones receiving the other elements of the analysis card 1 between the two films. It can be added an opaque sheet preferably aluminum fixed on one of the outer faces of one of the plastic films.
- sample pre-treatment chamber 4 configured to receive the biological sample comprising biological cells.
- the sample pre-treatment chamber 4 is presented as a space between the films of the structure 2.
- the sample pre-treatment chamber 4 can in particular be delimited by hermetically sealed zones of the structure 2.
- the sample pre-treatment chamber 4 can be associated with intake channels 4a, 4b for the biological sample and/or other liquid, and with an evacuation channel 4c configured to evacuate the biological cells from the sample pre-treatment chamber 4 once the biological cells have been separated. These channels 4a, 4b, 4c open into the sample pre-treatment chamber 4 at the level of discontinuities of the hermetically sealed zones of the structure 2.
- the sample pre-treatment chamber 4 comprises an agglomerate 6 of solid bodies and binder.
- An agglomerate 6 is a solid mass of solid bodies bound together by a binder.
- the agglomerate is typically rigid or hard, but can be soft or ductile, for example with an overall jelly-like consistency. In all cases, the agglomerate 6 is non-liquid, and is preferably dry.
- the agglomerate 6 is solid and can therefore be manipulated, and in particular be suspended at least for several seconds, for example by suction.
- the binder binds the solid bodies together, and therefore ensures the cohesion of the agglomerate 6.
- the agglomerate 6 comprises at least 100 solid bodies, and preferably at least 1000 solid bodies.
- the solid bodies preferably have the same size, typically with a diameter less than or equal to 10 ⁇ m and even more preferably less than 3 ⁇ m. Preferably also, the solid bodies have a diameter greater than or equal to 0.01 ⁇ m, and more preferably greater than or equal to 0.2 ⁇ m.
- the solid bodies are configured to mechanically cause separation of some or all of the biological sample components to make said biological sample components available for biological analysis processing, once the solid bodies are released from the agglomerate 6 and set in motion in the presence of the biological sample.
- the solid bodies are magnetic, and are therefore capable of being moved by an external magnetic field.
- the solid bodies are then formed of a magnetic material.
- magnetic material is meant a material which is magnetized or which, under the effect of an external magnetic field, acquires a magnetization. This is particularly the case of ferromagnetic or paramagnetic materials, and typically the case of iron or certain iron oxides.
- a solid body is said to be in a magnetic material when it mainly contains a magnetic material, for example in an alloy mainly comprising a magnetic material.
- the solid bodies are metallic.
- the solid bodies can advantageously have the shape of a solid of revolution, and preferably can be round, thus forming magnetic balls.
- the solid bodies are metallic and magnetic balls.
- the solid bodies can also be non-metallic and non-magnetic, and can for example be made of silica, and more particularly be silica balls.
- the binder is soluble in the biological sample so that when the biological sample is introduced into the pre-treatment chamber 4 where the agglomerate 6 is located, for example via the supply channels 4a, 4b, the binder dissolves and releases solid bodies in the biological sample.
- the solid bodies are then set in relative motion with respect to the biological cells of the biological sample, for example thanks to a variable external magnetic field, easily obtained by controlling the power supply of a component such as a coil, or even by using fluidic pressure waves, for example by pressing on the wall of the pre-treatment chamber 4.
- the moving solid bodies exert physical pressures on the membranes of the biological cells , and cause the breakage of said membranes, and therefore the lysis of biological cells.
- the contact between the solid bodies and the figured elements of the blood during mixing causes the separation of said figured elements.
- the nature of the pre-treatment obtained may depend on the type of biological sample, the size of the solid bodies, and the intensity of their setting in motion.
- the binder is chosen to ensure the binding of the solid bodies in the agglomerate 6 before its dissolution while limiting the biological or chemical interference with the biological cells which could be detrimental to the biological analysis provided once dissolved.
- the binder can for example mainly contain carbohydrates, for example sugar, in particular sucrose, or contain soluble polymers such as dextran, or polylactic acid or PLA.
- Other additives may be present, such as for example albumin such as bovine serum albumin or BSA, emulsifiers or surfactants such as polysorbates (esters of fatty acids and of polyoxyethylene sorbitan).
- the analysis card 1 can include other elements in fluid communication with each other.
- the evacuation channel 4c can connect the sample pre-treatment chamber 4 to additional chambers 8, 9 making it possible to implement different treatments on the components of the biological sample.
- a first additional chamber 8 can be a rinsing chamber and/or a chamber in which the solid bodies are magnetically retained in order to isolate the parts of the biological sample which will not be useful for the rest of the treatment. Solid bodies can be held in such an additional chamber 8 by applying a magnetic field thereto, in particular a permanent one, for example by means of a magnet placed opposite this additional chamber 8.
- Another additional chamber 9 can make it possible to implement a biological or chemical process, such as for example amplification in the context of a PCR process.
- an analysis plate 10 may also be present, this having for example wells 12 provided with reagents, the interaction of which with the treated parts of the biological cells forms the basis of the biological analysis. . It is for example possible to observe the occurrence or not of a visible change in each of the wells 12 to obtain the results of the analysis.
- the analysis card 1 described above is only an example, its composition and its organization being able to vary greatly. according to the analyzes that must be carried out, as well as according to the design and manufacturing constraints and choices. The only requirement is that the biological analysis card comprises a sample pre-treatment chamber 4 configured to receive a biological sample, provided with solid bodies.
- a preliminary SOI step may include the combination of solid body and binder to obtain a liquid mixture of solid bodies and binder, if the mixture is not yet available.
- the magnetic bodies are suspended in a liquid solution, typically an aqueous solution, that is to say with water as solvent, with one or more binders suitable for causing the binding of magnetic bodies during drying. of the mixture while limiting biological or chemical interference prejudicial to the planned biological analysis.
- a binder can be a sugar, in particular sucrose.
- Other additives can be added, such as for example albumin such as bovine serum albumin or BSA, emulsifiers or surfactants such as polysorbates (esters of fatty acids and of polyoxyethylene sorbitan).
- a volume 20 of mixture of solid bodies and binder is then deposited (step S02) on a drying surface 22.
- the volume 20 of mixture deposited on the surface drying 22 depends on the number of solids that it is desired to obtain in the agglomerate, and the concentration of solids in the mixture.
- the volume of mixture can be between 1 pL and 12 pL, and preferably between 2 pL and 6 pL.
- the drying surface 22 can be any surface allowing the mixture to dry.
- the drying surface 22 can be the bottom of a well 24, for example in a plate 26 comprising several tens of wells 24. These wells 24 are then preferably organized regularly on the surface of the plate 26, forming a network facilitating the automation of the deposit of the volumes 20 of mixture in their respective wells 24.
- the use of a well 24 makes it possible to limit the possible spreading of the volume 20 of mixture on the drying surface 22, and to ensure the exact positioning of the volume 20 of mixture on the drying surface 22, which is particularly advantageous in the case where all or part of the process is automated.
- a drop 21 of mixture is formed at the end of a depositing instrument 23, which is for example a pipette which can be carried by a robotic arm.
- the drying surface can be hydrophobic. It is for example possible for the drying surface to have a non-stick material such as polytetrafluoroethylene, or PTFE. It is also possible to coat the drying surface 22 with a hydrophobic product such as an oil or a wax.
- a volume 20 of mixture of solid bodies and binder is therefore present on the drying surface 22.
- This volume 20 of mixture is then dried. (step S03).
- Drying means a process of solidification of the volume of mixture, which is preferentially a dehydration, but can optionally be a crosslinking.
- the drying may comprise exposure to the open air of the volume of mixture of solid bodies and of binder until the solution of the mixture has evaporated. It is possible to heat the air, for example above 30°C, to accelerate the drying. It is also possible to control the atmosphere to which the volume 20 of mixture is exposed, for example by setting up ventilation or with a partial or total vacuum.
- Phase b1) of FIG. 2 shows a volume 20 of mixture in the process of drying at the bottom of a well 24 forming the drying surface 22.
- the drying can be carried out in an oven or a desiccator.
- the drying causes the solidification of the binder, which will trap the solid bodies and thus form the agglomerate 6.
- the drying causes a crystallization of the sugar which solidifies trapping solid bodies.
- an agglomerate 6 of solid bodies bound together by the binder is on the drying surface 22.
- the agglomerate is then removed from the drying surface (step S04).
- the removal of the agglomerate from the drying surface 22 can advantageously be carried out by suction of the agglomerate 6, for example by a suction cup 29.
- a robotic arm 28 wearing a suction cup 29 produces a suction which sticks the mixture 6 to the suction cup 29 by suction. It is however possible to remove the agglomerate 6 in other ways, such as simply picking it up with pliers.
- a mechanical take-off of the agglomerate 6 in order to detach it, even partially, from the drying surface. 22.
- vibrations can be applied to the drying surface 22, or a peeling tool, for example a blade, can be applied against the agglomerate 6, in particular at the interface between the agglomerate 6 and the drying surface 22.
- the agglomerate 6 is then deposited (step S05) in the sample pre-treatment chamber 4.
- the pre-treatment chamber 4 is already formed at this stage. There is in fact no need to leave the pre-treatment chamber 4 open (for example with a missing wall) since it is no longer necessary to dry the mixture there in the open air.
- the agglomerate 6 can for example be introduced through a supply channel 4a, 4b. The removal can be carried out by stopping the suction when the agglomerate 6 is transported by suction.
- the robotic arm 28 is introduced into a supply channel 4a until the suction cup 29 that it carries enters the pre-treatment chamber of the sample 4 in it is desired to deposit the agglomerate 6, and the suction of the robotic arm 28 is stopped. The robotic arm 28 and its suction cup 29 can then be removed, leaving the agglomerate 6 in place in the sample pre-treatment chamber 4
- step S06 It is then possible to seal the analysis card 1 (step S06), for example by plugging or closing the supply channels 4a, 4b. If the sample pre-treatment chamber 4 has been left open, for example to allow the agglomerate to be introduced through a missing wall of said sample pre-treatment chamber 4, the pre-treatment chamber 4 can then be closed by putting in place the missing wall, for example a film forming part of the structure 2. Insofar as no drying is necessary after the introduction of the solid bodies in the form of an agglomerate 6 into the sample pre-treatment chamber 4, the sealing of the analysis card 1 can immediately follow the placement of the agglomerate 6. The analysis card 1 is then ready to be used to carry out a biological analysis.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Hematology (AREA)
- Clinical Laboratory Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2110970A FR3128290A1 (fr) | 2021-10-15 | 2021-10-15 | Procédé de fabrication d'une carte d'analyse biologique comprenant une chambre de pré-traitement munie de corps solides |
| PCT/FR2022/000092 WO2023062292A1 (fr) | 2021-10-15 | 2022-10-10 | Procédé de fabrication d'une carte d'analyse biologique comprenant une chambre de pré traitement munie de corps solides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4415883A1 true EP4415883A1 (fr) | 2024-08-21 |
Family
ID=78827816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22801509.5A Pending EP4415883A1 (fr) | 2021-10-15 | 2022-10-10 | Procédé de fabrication d'une carte d'analyse biologique comprenant une chambre de pré traitement munie de corps solides |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250001411A1 (fr) |
| EP (1) | EP4415883A1 (fr) |
| CN (1) | CN118103142A (fr) |
| FR (1) | FR3128290A1 (fr) |
| WO (1) | WO2023062292A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11300578B2 (en) * | 2016-09-19 | 2022-04-12 | Roche Molecular Systems, Inc. | Instrument for processing cartridge for performing assays in a closed sample preparation and reaction system |
| CN114258321B (zh) * | 2019-03-12 | 2023-09-15 | 诺维卢克斯有限责任公司 | 即时浓度分析仪 |
-
2021
- 2021-10-15 FR FR2110970A patent/FR3128290A1/fr active Pending
-
2022
- 2022-10-10 CN CN202280069537.6A patent/CN118103142A/zh active Pending
- 2022-10-10 WO PCT/FR2022/000092 patent/WO2023062292A1/fr not_active Ceased
- 2022-10-10 US US18/700,573 patent/US20250001411A1/en active Pending
- 2022-10-10 EP EP22801509.5A patent/EP4415883A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250001411A1 (en) | 2025-01-02 |
| WO2023062292A1 (fr) | 2023-04-20 |
| CN118103142A (zh) | 2024-05-28 |
| FR3128290A1 (fr) | 2023-04-21 |
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