WO2023068684A1 - 일회용 분리칩 - Google Patents
일회용 분리칩 Download PDFInfo
- Publication number
- WO2023068684A1 WO2023068684A1 PCT/KR2022/015675 KR2022015675W WO2023068684A1 WO 2023068684 A1 WO2023068684 A1 WO 2023068684A1 KR 2022015675 W KR2022015675 W KR 2022015675W WO 2023068684 A1 WO2023068684 A1 WO 2023068684A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- conduit
- chip
- separation chip
- upper plate
- top plate
- Prior art date
Links
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Images
Classifications
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- 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
- B01L3/502761—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 specially adapted for handling suspended solids or molecules independently from the bulk fluid flow, e.g. for trapping or sorting beads, for physically stretching molecules
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- 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
- B01L3/502769—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 multiphase flow arrangements
- B01L3/502776—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 multiphase flow arrangements specially adapted for focusing or laminating flows
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- G01N35/08—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
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- 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 present invention relates to a disposable separation chip, and more particularly, to a disposable separation chip used to separate magnetic beads present in a mixed solution using magnetic force.
- Blood circulates in the blood vessels of humans or animals, transports oxygen received from the lungs to tissue cells, and transports carbon dioxide from the tissues to the lungs and releases it outside.
- blood transports nutrients absorbed from the digestive tract to organs or tissue cells, transports unnecessary substances in the body, which are products of tissue degradation, to the kidneys to be discharged out of the body, and transports hormones secreted from the endocrine glands to working organs and tissues. .
- circulating cancer cells collectively refer to cancer cells present in the peripheral blood of cancer patients, and are cancer cells eliminated from primary or metastatic lesions.
- Such circulating cancer cells are expected to be potent bio-markers in cancer diagnosis, treatment prognosis analysis, and micrometastasis analysis.
- circulating cancer cell analysis is very promising as a future cancer diagnosis method because it has the advantage of being a non-invasive method.
- a mixed solution containing cancer cells to which magnetic nanoparticles are bound is prepared by mixing magnetic nanoparticles (called magnetic beads) bound with antibodies that specifically react to cancer cells and blood to be tested.
- the technology (prior art 1) using is as follows.
- the ferromagnetic wire is configured to be spaced apart from the channel surface of the microfluidic channel unit for separation. It has a lower chip structure including a ferromagnetic wire as a magnetic structure.
- a combination of nickel (Ni), iron (Fe), cobalt (Co), and molybdenum (Mo) is used for the ferromagnetic wire alloy.
- a microfluidic channel pattern is formed on the top chip.
- a device for separating and trapping microparticles using magnetic flow is completed by integrally bonding with the lower chip including the ferromagnetic wire through UV bonding or plasmaman bonding.
- Residue left inside the chip during the chip cleaning process acts as an obstacle when separating the magnetic beads.
- the present invention is to provide an economical disposable separation chip having a low manufacturing cost of the chip.
- the present invention is a lower chip formed with a wire pattern having a parabolic shape from one side to the other side; and a separation chip separable from the lower chip, wherein the separation chip includes: an upper plate having a coupling part coupled to the tubing; and a first member located below the top plate and coupled to the lower surface of the top plate, wherein the coupling part is manufactured integrally with the top plate and is formed through the upper and lower surfaces of the top plate so as to communicate with the conduit Disposable separation chips are provided.
- the coupling part may include a recessed part formed on an upper surface of the top plate; a pipe part located inside the recessed part and inserted into the tubing; And it may include a connection portion that connects the inner circumferential surface of the pipe portion to communicate with the conduit by extending it.
- the pipe part may form an acute angle with the top surface of the top plate.
- a stopper portion having the same or larger diameter as the tubing may be formed on an outer circumferential surface of the pipe portion to allow the tubing to be inserted to a predetermined depth.
- the present invention also relates to a lower chip on which a wire pattern having a parabolic shape is formed from one side to the other side; and a separation chip separable from the lower chip, wherein the separation chip includes: an upper plate having a coupling part coupled to the tubing; and a first member positioned below the top plate and coupled to the lower surface of the top plate, wherein the coupling part is integrally manufactured with the top plate and is formed through the top and bottom surfaces of the top plate so as to communicate with the conduit, ,
- a disposable separation chip in which a concave-shaped conduit is formed in the lower part of the upper plate.
- the lower surface of the upper plate is made of a curved surface having a radius of curvature of 500 to 1000 mm, and the thickness of the central portion may be thicker than the thickness of both side surfaces.
- compression means for compressing the separated chip toward the lower chip may be included at upper and lower ends of both side surfaces of the upper plate.
- the conduit comprises a first conduit and a second conduit that communicates with the first conduit, branches into a plurality, and includes a first part and a second part communicating with the first part.
- the width of the first portion may increase as it approaches the second portion, and the width of the second portion may decrease as it approaches a third conduit communicating with the second conduit.
- the conduit includes a first conduit and a second conduit communicating with the first conduit and branching into a plurality, and the second conduit may be formed to have an arc shape.
- the conduit comprises a first conduit and a second conduit communicating with the first conduit and branching into a plurality, and a plurality of jaws are located on the first conduit or the second conduit. It may be
- the chin may include a first chin and a second chin positioned under or next to the first chin.
- a filter may be located on the conduit.
- the filter may communicate with the conduit and form a certain space.
- the present invention also provides a lower chip on which a wire pattern having a parabolic shape is formed from one side to the other side; and a separation chip separable from the lower chip, wherein the separation chip includes: an upper plate having a coupling part coupled to the tubing; and a first member positioned below the top plate and coupled to the lower surface of the top plate, wherein the coupling part is integrally manufactured with the top plate and is formed through the top and bottom surfaces of the top plate so as to communicate with the conduit, , A concave conduit is formed in the lower part of the upper plate, and the lower chip and the separation chip may be made of plastic.
- the plastic may be a transparent polycarbonate.
- the present invention also provides a microfluidic-based diagnostic system including the disposable separation chip.
- the microfluidic-based diagnosis system may include a fluid supply unit supplying a buffer solution or microfluid; a microfluidic bubble trap for removing bubbles contained in the fluid supplied from the fluid supply unit; a separation chip for mixing and separating the fluids passing through the microfluidic bubble trap; and a diagnostic means for analyzing the microfluid passing through the separation chip; and a diagnostic system controller for controlling the diagnostic system.
- the disposable separation chip according to the present invention has the following advantages.
- the upper chip can be manufactured by a relatively simple method other than semiconductor technology or MEMS technology, production cost is reduced, and mass production is easy and economical.
- the disposable separation chip of the present invention can guarantee constant quality.
- Manufacturing costs can be reduced by integrating the conduit into the upper plate, and defects in separation chips caused by incorrect bonding of members used for conduit formation can be minimized.
- FIG. 1 shows the structure of a separation chip according to an embodiment of the present invention.
- FIG. 2 shows an upper view of a separation chip according to an embodiment of the present invention.
- Figure 3 shows the shape of the coupling part according to an embodiment of the present invention.
- FIG. 4 is a plan view illustrating a case in which a disposable separation chip and a lower chip are coupled according to an embodiment of the present invention.
- FIG. 5 is a plan view of a lower chip according to an embodiment of the present invention.
- FIG. 6 is a plan view illustrating a case in which a conduit of a disposable separation chip is expanded according to an embodiment of the present invention.
- FIGS. 6 to 9 are plan views illustrating a case in which a conduit of a disposable separation chip according to an embodiment of the present invention is multi-branched.
- FIG. 10 is a plan view and a cross-sectional view of a case where a filter of a disposable separation chip according to an embodiment of the present invention is formed.
- FIG. 11 briefly illustrates the configuration of a diagnosis system according to an embodiment of the present invention.
- FIGS. 12 to 14 are views showing the shape of a separation chip according to an embodiment of the present invention.
- 'and/or' includes a combination of a plurality of recited items or any one of a plurality of recited items.
- 'A or B' may include 'A', 'B', or 'both A and B'.
- the present invention is a lower chip formed with a wire pattern having a parabolic shape from one side to the other side; and a separation chip separable from the lower chip, wherein the separation chip includes: an upper plate having a coupling part coupled to the tubing; and a first member located below the top plate and coupled to the lower surface of the top plate, wherein the coupling part is manufactured integrally with the top plate and is formed through the upper and lower surfaces of the top plate so as to communicate with the conduit It relates to a disposable separation chip.
- the disposable separation chip may include an upper plate 100 and a first member 110.
- the upper plate 100 may be manufactured to be similar to a rectangular plate having a low height.
- the first member 110 is similar to a plate having a very thin thickness compared to its length and width, and may be made of a film or tape.
- the first member 110 may be coupled to a lower portion of the upper plate 100 . More specifically, the first member 110 may be coupled to the top plate 100 through an adhesive positioned on the lower surface of the top plate 100 . At this time, since the conduit 150 is formed on the lower surface of the upper plate 100, the adhesive may be applied only to the lower surface of the upper plate except for the conduit 150, and through this, the lower surface of the conduit 150 It may be formed by the first member 100.
- the conduit 150 may be formed by concavely digging the lower surface of the upper plate 100. At this time, the conduit may be formed in an embossed shape on the mold during the manufacture of the top plate 100 and formed in a negative shape at a corresponding position of the top plate 100. Also, after making the lower surface of the upper plate 100 flat, the lower surface It may be formed through mechanical processing or manufactured through chemical etching. At this time, the shape of the conduit 150 can be formed in various ways according to its purpose.
- the coupling part 170 is located on the upper plate and may serve to supply a buffer solution or microfluid supplied from the tubing to the conduit 150 by being coupled with the tubing.
- the existing coupling part it was formed in a shape penetrating the top and bottom of the upper plate, and then a pipe was inserted and the tubing was coupled to the exposed surface of the pipe.
- it in order to supply the microfluid to the conduit, it has a disadvantage that it must go through three stages of tubing-pipe-penetration.
- loss increases as the number of connection parts of each component increases. In the case of the present invention, it is possible to minimize the loss of cells by coupling using only two steps of the tubing-coupler.
- the coupling part may include a recessed part formed on an upper surface of the top plate; a pipe part located inside the recessed part and inserted into the tubing; And it may include a connection portion that connects the inner circumferential surface of the pipe portion to communicate with the conduit by extending it.
- the recessed part 171 is a part where the pipe part 172 protrudes to the outside is formed, and may be manufactured in a shape into which a part of the upper plate 100 of the separation chip is recessed. Through this, not only can the length of the pipe part 172 be formed short, but also the pipe part 172 can be prevented from being damaged by protruding to the outside, and the separated chip parts can be stacked and stored, thus manufacturing and transporting this can be easy
- the pipe part 172 is installed extending upward from the lowest point inside the recessed part 171 (see FIG. 2), and as seen above, the height of the uppermost end is equal to or lower than the upper surface of the top plate 100. It is preferable to form in position. At this time, it is preferable that the pipe part 172 form an acute angle with the top surface of the top plate, and the advantages of this are as follows.
- the angle between the injection hole and the syringe is right angle or close to right angle.
- the pressure of the solution acts greatly, and the solution permeates between components constituting the top plate, for example, a member coupled to the top plate.
- the separation chip of the present invention is introduced at an angle so that the pressure of the solution does not greatly affect the upper plate, the lower plate, or the first member when the solution is injected, durability of the chip itself can be increased.
- the directionality of the solution input is secured so that the solution can flow smoothly through the conduit.
- the tubing is generally made of PDMS material (polydimethylsiloxane, a type of synthetic rubber material) that communicates with the conduit, and when the lens moves to the inlet or outlet, interference between the lens and the tubing occurs.
- PDMS material polydimethylsiloxane, a type of synthetic rubber material
- interference between the lens and the tubing eventually changes the flow of the solution in the tubing, or increases the possibility that the obstruction or tubing is dislodged from the inlet or outlet.
- the separation chip is fitted with tubing in a pipe having an acute angle with the top surface of the top plate.
- connection part 173 is a part that extends the inner circumferential surface of the pipe part 172 and connects it to communicate with the conduit 150, and allows the fluid supplied from the pipe part 172 to be supplied to the conduit. Therefore, the connection part 173 may have an internal shape so that the inner circumferential surface of the pipe part and the conduit part can be connected smoothly, and through this, the fluid (buffer solution or microfluid) supplied from the pipe part is supplied in the direction of the conduit. resistance can be minimized (see FIG. 3).
- the top of the pipe part 172 may be cut at the same angle as the top surface of the top plate 100 (see FIG. 3). That is, the upper surface of the pipe part 172 is not cut in a direction perpendicular to the center of the pipe part, but is cut in a direction horizontal to the upper surface, and the upper surface of the pipe part and the center of the pipe part may form an acute angle. Through this, it is possible to smoothly insert the tubing, and it is possible to prevent separation due to pressure of the fluid when the fluid is supplied to the tubing by increasing the outer surface area of the pipe part in contact with the inner circumferential surface of the tubing.
- a stopper portion 174 having a diameter equal to or greater than that of the tubing may be formed on an outer circumferential surface of the pipe portion so that the tubing may be inserted to a certain depth.
- the pipe part 172 may be inserted into the tubing.
- the lower surface of the pipe part 172 since the lower surface of the pipe part 172 is in contact with the recessed part 171, the lower surface of the pipe part may come into contact with the recessed part in an acute angle.
- one side of the tubing may contact the surface of the recessed portion first, and the other side of the tubing may be positioned at the middle of the pipe portion 172 .
- the insertion depth of the tubing may not be constant, which may cause a pressure difference between the fluids supplied to the tubing. Therefore, by forming the stopper part 174 on the outer circumferential surface of the pipe part, the insertion depth of the tubing can be kept constant, and the experiment can be performed under constant conditions.
- the diameter of the stopper part 174 may have the same diameter as or greater than that of the outer circumferential surface of the tubing, and is preferably formed perpendicular to the center of the pipe part.
- the coupling part 170 including the pipe part 172 may be integrally manufactured with the top plate.
- the existing upper plate for separation chips after the upper plate is manufactured, it is manufactured by combining metal pipe parts that are separately manufactured. At this time, the pipe part is inserted into the hole formed in the upper plate to supply fluid in the direction of the conduit.
- a disposable separation chip in which a pipe is inserted into an existing hole may cause a gap between the inserted pipe and the hole, and waterproof treatment is required to prevent leakage of the sample or buffer solution between the pipe and the hole.
- the pipe inserted into the hole since the pipe inserted into the hole is manufactured separately, it may act as a factor that increases the unit price and production cost of the disposable separation chip.
- the upper plate and the coupling part are integrally manufactured during the manufacture of the mold, the number of parts and unit cost of the disposable separation chip can be reduced, and the separation efficiency can be improved as the number of disposable separation chips and the connecting portion is reduced. (The more connections, the more cell loss).
- the upper plate of the disposable separation chip using a precision mold, it is possible to improve the stable performance of the separation chip by increasing the surface roughness of all paths through which the sample passes, such as holes, pipes, and conduits.
- the disposable separation chip includes an upper plate 100 including a conduit (channel) and a first member 110, and the first member 110 may be coupled to a lower surface of the upper plate 100.
- the shape of the top plate 100 is similar to a rectangular plate with a low height, and the first member 110 may be manufactured in a sheet or film shape with a very thin thickness compared to the length and width. It can be made of various materials such as PEN, PET, and PC depending on the usage and conditions.
- the disposable separation chip of the present invention may be made of plastic.
- the upper plate may be made of plastic.
- the first member and the lower plate may also be made of plastic.
- the present invention a kind of plastic material called polycarbonate (PC) or polymethyl methacrylate (PMMA) is used.
- PC polycarbonate
- PMMA polymethyl methacrylate
- the present invention in which the upper plate is made of a plastic material has the following advantages.
- the present invention is a universal manufacturing method using a plastic material, the manufacturing process is simple.
- the upper plate and the first member may be coupled by various methods such as (1) high-frequency welding (2) ultrasonic welding (3) thermal fusion.
- a mixed solution input hole through which the mixed solution is once injected and a buffer solution input hole through which a buffer solution such as saline is injected are located on one side of the upper plate.
- a magnetic bead discharge hole through which magnetic beads are discharged and other particle discharge holes through which other particles are discharged are located on the other side of the top plate of the coupling part located in the separation chip of the present invention.
- the plurality of coupling portions are formed to communicate with the conduit, and as described above, the coupling portion may be integrally manufactured with the upper plate.
- a hole 220a through which a sample (microfluid including blood) is introduced and a hole 220b through which a buffer solution such as saline is introduced may be located on one side of the upper plate.
- Holes 220c through which separated samples are discharged and holes 220d and 220e through which buffer solutions including other samples are discharged may be located on the other side of the upper plate 450 .
- the plurality of holes 220a to 220e are formed to communicate with the conduit, and the pipe 170 is integrally positioned in the holes 220a to 220e.
- a wire pattern may be disposed at a specific position of the conduit 150 as a hole for alignment with the wire pattern chip.
- the wire pattern is formed to have a parabolic shape from one side of the lower chip to the other side.
- the wire pattern is located in the third conduit, which is a part of the conduit where cell separation takes place.
- the wire pattern is located from the start point to the end point of the third conduit, and it can be said that a parabola is formed from one side of the lower chip to the other side, that is, the vertex of the wire pattern is formed close to the end point of the third conduit.
- a conduit 250 is formed on the lower surface of the upper plate 100, and the conduit 150 may be formed by concave intaglio on the lower surface of the upper plate.
- the lower surface of the top plate is made flat, and then the conduit is formed by attaching a member having the conduit shape engraved on one side or deleted in the conduit shape.
- defects may occur depending on the attachment position of the member, and leakage may occur at the connection portion between the upper plate and the member, or cells may be attached and lost. Therefore, in the case of the present invention, by forming a conduit-shaped intaglio on the lower surface of the upper plate, the conduit can be formed only by combining the first member, and through this, loss or leakage of the cells can be fundamentally blocked.
- leakage of the conduit may be determined according to the bonding force between the first member and the lower plate.
- the bonding force of the central portion may be lowered and water leakage may occur.
- the lower surface of the upper plate is made of a curved surface with a radius of curvature of 500 to 1000 mm, and the thickness of the central part is thicker than the thickness of both sides. Defects due to water leakage can be minimized by pressurizing the central part.
- the conduit located in the center may also be deformed, and it is preferable to form a shallow central portion of the conduit in consideration of this when forming the conduit.
- Pressing means for compressing the separated chip toward the lower chip may be included at upper and lower ends of both side surfaces of the upper plate.
- the pressing means presses the upper plate in the direction of the lower plate and forms a conduit between the upper plate and the lower plate.
- the upper plate is formed in a curved surface
- the upper plate is compressed in the direction of the lower plate and at the same time the lower surface of the upper plate is formed in a straight line.
- the conduit portion can be more pressurized than the side portion of the top plate.
- any material capable of pressurizing the upper plate and coupling the lower plate may be used without limitation, and preferably, a bolt, nut, clamp, or a press for pressing the upper surface of the upper plate downward may be used.
- the conduit formed on the lower side of the upper plate can be formed as follows (see FIG. 6).
- the first conduit 151 communicating with the input hole 220a is located in the center of the top plate 100 based on the width direction of the top plate 100, and the top plate ( 100) can be formed on one side.
- one side 151a of the first conduit may be in communication with the input coupling part 220a.
- the second conduit 152 includes a plurality of branching conduits, and in the following description, the branching conduit located above the top plate 100 in the width direction will be described as a reference.
- the second conduit 152 may include a first part 152a and a second part 152b.
- the first portion 152a of the second conduit may be formed to have a predetermined length upward from the first conduit 151 to the right.
- the second portion 152b of the second conduit communicates with the first portion 152a of the second conduit and may be formed to have a predetermined length from the other side of the first portion 152a of the second conduit downward to the right. there is.
- the width of the first portion 152a of the second conduit may increase as it approaches the second portion 152b of the second conduit.
- the second part 152b of the second conduit gets closer to the third conduit 153 communicating with the second part 152b of the second conduit from the other side of the first part 152a of the second conduit. It may be formed to decrease in width.
- the width of the second conduit remains the same, the part where the other side of the first part 152a of the second conduit and one side of the second part 152b of the second conduit are connected, that is, the part where the conduit is bent Since the cells move only on one side of the duct after the passage, the redistribution effect may not appear or the effect may be reduced.
- the conduit formed on the lower side of the upper plate can be formed as follows (see FIG. 7).
- the first conduit 151 communicating with the input hole 220a is located in the center of the top plate 100 based on the width direction of the top plate 100, and the top plate ( 100) may be formed on one side.
- the first conduit 151 is preferably shorter than the second conduit 152.
- the second conduit 152 communicating with the first conduit 151 includes a plurality of branched conduits. At this time, the second conduit 152 may be formed to have an arc shape as shown in the drawing. In addition, the second conduit 152 is located above and below the center of the width of the top plate 100 based on the width direction of the top plate 100, and may branch into a plurality of conduits.
- the number of diverging conduits may be two or more above and two or more below when viewed from the center of the width of the upper plate 100.
- a conduit formed on one side of the upper plate may be formed as follows (see FIGS. 8 and 9).
- a plurality of branching conduits constituting the second conduit 152 may be merged into one before a part of them communicates with the third conduit 153 . That is, hereinafter, it is located above and below the center of the width of the top plate 100 based on the width direction of the top plate 100, and at this time, the number of diverging conduits is two above when viewed from the center of the width of the top plate, and below It is described based on two cases.
- the branched second conduit 152 is hereinafter referred to as the 2-1 conduit 1521 to the 2-4 conduit 1524.
- a part of the 2-1 conduit 1521 and a part of the 2-2 conduit 1522 are connected so that the 2-1 conduit 1521 and the 2-2 conduit 1522 communicate with the third conduit 153. They are joined together to form a single conduit.
- the part of the 2-1 pipeline refers to a portion adjacent to the 3rd pipeline among the 2-1 pipelines.
- the portion 1522b of the 2-2 conduit means a portion adjacent to the third conduit 153 in the 2-2 conduit 1522.
- a part 1521b of the 2-1 conduit and a part 1522b of the 2-2 conduit may be combined into one and then communicated with the third conduit 153.
- a filter may be positioned on the conduit 150.
- the filter may be located in the first conduit 151 or the second conduit 152.
- a plurality of filters may be located on the second conduit 152, and specifically may be located in the first part 152a of the second conduit and the second part 152b of the second conduit, respectively. there is.
- one or more filters may be located on the first conduit 151 as well.
- the filter communicates with the conduit 150 and has a certain space.
- gas (air) contained in the solution may be removed. That is, a removal method based on the specific gravity of the solution and the gas is selected.
- the filter is preferably positioned above the conduit 150.
- a jaw 180 may be positioned on the separation chip 10 of the present invention (see FIG. 10).
- the conduit 150 formed in the separation chip 10 of the present invention may include the first conduit 151.
- the conduit 150 communicates with the first conduit 151 and may include a second conduit 152 branching into a plurality of pieces.
- a plurality of jaws 180 may be positioned on the first conduit 151 or the second conduit 152 .
- the jaw 180 may be located below the upper plate on which the conduit 150 is formed. That is, it has been described above that a groove can be formed in a part of the upper plate in order to form the conduit 150 in the lower part of the upper plate.
- a concave groove may be formed in the width of the first conduit 150 except for the protrusion 180.
- a groove through which the fluid can flow is formed by deleting a part, but the upper part may be manufactured in a shape in which a chin is formed.
- the role of the jaw 180 is as follows. In the present invention, a case in which a plurality of jaws 190 are formed in the first conduit 151 will be described.
- the distance between one jaw and another adjacent jaw may be smaller than the size of air particles mixed in the solution.
- the above-described protrusion 180 may have various shapes, such as a rectangle, a circle or a rhombus, within a range capable of filtering air particles.
- the jaws 180 located in the first conduit 151 or the second conduit 152 may be formed to have not only one row but also two or more rows. That is, the chin 180 may include a first chin and a second chin positioned under or next to the first chin.
- the present invention also provides a microfluidic-based diagnostic system including the disposable separation chip.
- the microfluidic-based diagnosis system may include a fluid supply unit supplying a buffer solution or microfluid; a microfluidic bubble trap for removing bubbles contained in the fluid supplied from the fluid supply unit; a disposable separation chip for mixing and separating the fluid passing through the microfluidic bubble trap; and a diagnostic means for analyzing the microfluid passing through the separation chip. and a diagnosis system controller controlling the diagnosis system.
- the fluid supply unit 1000 is composed of a pump for supplying microfluid, a tube and a valve for transporting the fluid, and can perform stable fluid supply through appropriate flow rate control.
- the bubble trap (2000) consists of a bubble trap body, an inlet and an outlet, and traps the microbubbles introduced from the fluid supply unit (1000) inside the bubble trap to prevent microbubbles from entering the channel of the separation chip (3000) can do.
- the separation chip 3000 is made of a material such as plastic or plastic and glass (ceramic) and is composed of an inlet and an outlet through which fluid is introduced, a microchannel, etc., and can separate, measure, culture, and analyze the inflowed sample.
- the diagnostic means 4000 is composed of a fluorescence system, an optical system including a high-performance camera, and other detection sensors, and can perform fluorescence analysis, single cell analysis, protein analysis, and the like.
- the diagnostic system control device 5000 is composed of hardware including a central processing unit (CPU) and input/output devices (eg flow sensor, pinch valve, touch interface, etc.), controls communication and coordination between each input/output device, and diagnoses Analysis may be performed on the data collected from means 4000 .
- CPU central processing unit
- input/output devices eg flow sensor, pinch valve, touch interface, etc.
- the microfluidic diagnostic system of the present invention may include a separation chip 3000.
- the accuracy of a diagnostic system based on microfluids may be greatly influenced by the presence or absence of bubbles in the microfluids. Therefore, in the case of the present invention, the reliability of the diagnostic system can be greatly improved by removing the bubbles of the supplied fluid using the bubble trap 2000 and supplying the bubbles to the separation chip 3000 (see FIG. 11).
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Abstract
Description
Claims (17)
- 일측으로부터 타측으로 포물선형을 갖는 와이어 패턴이 형성된 하부칩; 및상기 하부칩과 분리 가능한 분리칩을 포함하며,상기 분리칩은,튜빙과 결합되는 결합부가 형성되는 상판; 및상기 상판의 아래에 위치하며, 상기 상판의 하면에 결합되는 제1부재;를 포함하며,상기 결합부는 상기 상판과 일체형으로 제작되되, 상기 관로와 연통되도록 상기 상판의 상면과 하면을 관통하여 형성되는 일회용 분리칩.
- 제1항에 있어서,상기 결합부는,상기 상판의 상면에 형성되는 함입부;상기 함입부의 내부에 위치하며, 상기 튜빙의 내부에 삽입되는 파이프부; 및상기 파이프부의 내주면이 연장되어 상기 관로와 연통되도록 연결하는 연결부;를 포함하는 것을 특징으로 하는 일회용 분리칩.
- 제2항에 있어서,상기 파이프부는 상기 상판의 상면과 예각을 형성하는 것을 특징으로 하는 일회용 분리칩.
- 제2항에 있어서,상기 파이프부의 외주면에는 상기 튜빙과 동일하거나 큰 직경을 가지는 스토퍼부가 형성되어 상기 튜빙이 일정한 깊이로 삽입될 수 있도록 하는 것을 특징으로 하는 일회용 분리칩.
- 일측으로부터 타측으로 포물선형을 갖는 와이어 패턴이 형성된 하부칩; 및상기 하부칩과 분리 가능한 분리칩을 포함하며,상기 분리칩은,튜빙과 결합되는 결합부가 형성되는 상판; 및상기 상판의 아래에 위치하며, 상기 상판의 하면에 결합되는 제1부재;를 포함하며,상기 결합부는 상기 상판과 일체형으로 제작되되, 상기 관로와 연통되도록 상기 상판의 상면과 하면을 관통하여 형성되고,상기 상판의 하부에는 요홈 형상의 관로가 형성된 일회용 분리칩.
- 제5항에 있어서,상기 상판의 하면은,곡률반경이 500~1000mm인 곡면으로 제작되어 중앙부의 두께가 양측면의 두께에 비하여 두껍게 제작되는 것을 특징으로 하는 일회용 분리칩.
- 제6항에 있어서,상기 상판의 양측면 상단 및 하단에는 상기 분리칩을 상기 하부칩 방향으로 압착하는 압착수단을 포함하는 것을 특징으로 하는 일회용 분리칩.
- 제5항에 있어서,상기 관로는 제1관로와상기 제1관로와 연통되며, 다수 개로 분기하며, 제1부와 상기 제1부와 연통되는 제2부를 포함하는 제2관로를 포함하여 이루어지되, 상기 제1부는 상기 제2부와 가까워질수록 폭이 증가하며, 상기 제2부는 제2관로와 연통하는 제3관로와 가까워질수록 폭이 감소하는 것을 특징으로 하는 일회용 분리칩
- 제5항에 있어서,상기 관로는 제1관로와상기 제1관로와 연통되며, 다수 개로 분기하는 제2관로를 포함하여 이루어지되, 상기 제2관로는 원호 형상을 갖도록 형성하는 것을 특징으로 하는 일회용 분리칩
- 제5항에 있어서,상기 관로는 제1관로와상기 제1관로와 연통되며, 다수 개로 분기하는 제2관로를 포함하여 이루어지며, 상기 제1관로 또는 상기 제2관로 상에 다수 개의 턱이 위치하는 것을 특징으로 하는 일회용 분리칩
- 제10항에 있어서,상기 턱은 제1턱과 상기 제1턱의 아래 또는 옆에 위치하는 제2턱을 포함하여 이루어지는 것을 특징으로 하는 일회용 분리칩
- 제5항에 있어서,상기 관로 상에 필터가 위치하는 것을 특징으로 하는 일회용 분리칩
- 제12항에 있어서,상기 필터는 상기 관로와 연통되며, 일정한 공간을 형성하는 것을 특징으로 하는 일회용 분리칩.
- 일측으로부터 타측으로 포물선형을 갖는 와이어 패턴이 형성된 하부칩; 및상기 하부칩과 분리 가능한 분리칩을 포함하며,상기 분리칩은,튜빙과 결합되는 결합부가 형성되는 상판; 및상기 상판의 아래에 위치하며, 상기 상판의 하면에 결합되는 제1부재;를 포함하며,상기 결합부는 상기 상판과 일체형으로 제작되되, 상기 관로와 연통되도록 상기 상판의 상면과 하면을 관통하여 형성되고,상기 상판의 하부에는 요홈 형상의 관로가 형성되고,상기 하부칩 및 상기 분리칩은 플라스틱으로 제작되는 일회용 분리칩.
- 제14항에 있어서,상기 플라스틱은 투명 폴리카보네이트인 것을 특징으로 하는 일회용 분리칩.
- 제1항 내지 제15항 중 어느 한 항의 일회용 분리칩을 포함하는 미세유체 기반 진단 시스템.
- 제16항에 있어서,상기 미세유체 기반 진단 시스템은,버퍼용액 또는 미세유체를 공급하는 유체공급부;상기 유체공급부에서 공급되는 유체에 포함되어 있는 버블을 제거하는 버블트랩;상기 버블 트랩을 통과한 유체를 혼합 및 분리하는 일회용 분리칩;상기 분리칩을 통과한 미세유체를 분석하는 진단수단; 및상기 진단시스템을 제어하는 진단시스템 제어장치;를 포함하는 것을 특징으로 하는 미세유체 기반 진단 시스템.
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KR101667351B1 (ko) * | 2016-02-18 | 2016-10-18 | 주식회사 지노바이오 | 일회용 분리칩 |
KR20180009377A (ko) * | 2018-01-19 | 2018-01-26 | 삼성전자주식회사 | 기체 버블 트랩 기능을 갖는 미세 유체 공급소자 |
KR20190080133A (ko) * | 2017-12-28 | 2019-07-08 | 주식회사 지노바이오 | 분리칩 |
KR102399411B1 (ko) * | 2021-10-18 | 2022-05-18 | 주식회사 지노바이오 | 일회용 분리칩 |
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KR100900511B1 (ko) * | 2007-07-23 | 2009-06-03 | 주식회사 디지탈바이오테크놀러지 | 유체분석용 칩 |
KR101175594B1 (ko) * | 2012-05-14 | 2012-08-21 | 주식회사 나노엔텍 | 샘플분석용 칩 |
KR102140036B1 (ko) | 2013-11-21 | 2020-07-31 | 인제대학교 산학협력단 | 미세입자 분리 및 포획을 위한 장치 |
KR101700228B1 (ko) | 2014-12-03 | 2017-02-14 | 한국과학기술원 | 세포 분리칩 및 이를 이용한 세포 분리 방법 |
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KR101667351B1 (ko) * | 2016-02-18 | 2016-10-18 | 주식회사 지노바이오 | 일회용 분리칩 |
KR20190080133A (ko) * | 2017-12-28 | 2019-07-08 | 주식회사 지노바이오 | 분리칩 |
KR20180009377A (ko) * | 2018-01-19 | 2018-01-26 | 삼성전자주식회사 | 기체 버블 트랩 기능을 갖는 미세 유체 공급소자 |
KR102399411B1 (ko) * | 2021-10-18 | 2022-05-18 | 주식회사 지노바이오 | 일회용 분리칩 |
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