WO2019103236A1 - 시료의 흐름을 조절할 수 있는 미세유체분석칩 - Google Patents
시료의 흐름을 조절할 수 있는 미세유체분석칩 Download PDFInfo
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- WO2019103236A1 WO2019103236A1 PCT/KR2017/015436 KR2017015436W WO2019103236A1 WO 2019103236 A1 WO2019103236 A1 WO 2019103236A1 KR 2017015436 W KR2017015436 W KR 2017015436W WO 2019103236 A1 WO2019103236 A1 WO 2019103236A1
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- main channel
- flow control
- control block
- microtubule
- flow
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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
- B01L3/5027—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip
- B01L3/502746—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures by integrated microfluidic structures, i.e. dimensions of channels and chambers are such that surface tension forces are important, e.g. lab-on-a-chip characterised by the means for controlling flow resistance, e.g. flow controllers, baffles or throttle valves
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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
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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
- B01L3/5027—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
- B01L3/502715—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 interfacing components, e.g. fluidic, electrical, optical or mechanical interfaces
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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
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
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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
- B01L2300/04—Closures and closing means
- B01L2300/046—Function or devices integrated in the closure
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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
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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
- B01L2300/12—Specific details about materials
- B01L2300/123—Flexible; Elastomeric
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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
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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
- B01L2400/08—Regulating or influencing the flow resistance
- B01L2400/084—Passive control of flow resistance
- B01L2400/086—Passive control of flow resistance using baffles or other fixed flow obstructions
Definitions
- the present invention relates to a microfluidic analysis chip, and more particularly, to a microfluidic analysis chip capable of controlling the flow of a sample.
- a biochip refers to an integrated product of DNA, protein, and other biomolecules on a small substrate made of glass, silicon, or nylon.
- DNA When the DNA is integrated, it is called a DNA chip.
- protein When the protein is integrated, Quot;
- the biochip can be divided into a microarray chip and a micro fluidics chip.
- a microarray chip refers to a biochip capable of arranging thousands or tens of thousands of DNAs or proteins at regular intervals, analyzing the target substance to analyze the binding pattern.
- the microfluidics chip is a biochip capable of analyzing the reaction with various biomolecules or sensors integrated in a chip while flowing a small amount of analyte, which is also called a lab on a chip , Advanced technologies that combine the functions of pumps, valves, reactors, extractors, separation systems, etc., which are essential for the sample preparation process of automatic analyzers used in the analysis of biochemical materials, and sensor technology.
- the lab-on-a-chip is designed to process sample injections, pretreatment, chemical reactions, separation / analysis, etc. that go through labs to analyze chemical and biochemical materials within a few cm2 of the chip It is a microanalysis device.
- the lab-on-a-chip technology is a combination of micro flow control technology and MEMS microfabrication technology that precisely transfers, distributes and mixes tens of microliters ( ⁇ l) of sample from a few picoliter (pl) It is a core technology.
- Rap-on-a-chip which uses trace amounts of samples and analyzes chemical components quickly and easily, is widely used to select useful new drugs at a high speed among a large number of new drug candidates. Recently, Type of lab-on-a-chip is under research and development.
- lab-on-a-chip In contrast to micro-array chips such as DNA chips and protein chips, lab-on-a-chip is still in the R & D stage worldwide, and commercialization is limited and small. In the case of a lab-on-a-chip, the network of microchannels is simple, and the reaction process is also being carried out at an uncomplicated stage.
- the specification intends to provide a microfluidic analysis chip capable of controlling the flow of a sample.
- the microfluidic analysis chip according to the present invention for solving the above-mentioned problems is characterized in that the microfluidic analysis chip according to the present invention is a microfluidic analysis chip for a main channel for providing a space for reacting with a reagent while a sample put through a sample injection port, Microtubule; And at least one flow control block that contacts the chip housing by an external force to close or open the flow of fluid in the microtubule for the main channel.
- the flow control block further includes at least one block outlet formed on one side of the chip housing and connected to a side surface of the microtubule for the main channel.
- the flow control block moves through the block outlet
- the flow of the fluid in the microtubule for the main channel can be closed or opened.
- a part of the area surrounding the microtubule for the main channel as a part of the chip housing is in contact with the flow control block is a flexible material, and the flow control block is a flexible
- the flow of the fluid in the microtubule for the main channel can be closed or opened by applying pressure to the portion made of the material.
- the microfluidic analysis chip according to the present invention may further include a moving part that moves along the path corresponding to the shape of the microchannel for the main channel to provide an external force in contact with the flow control block.
- the lower end of the flow control block may be exposed to the outside to contact the moving part.
- the lower contact portion may have a length corresponding to the closing or opening time of the fluid flow in the microtubule for the main channel set in advance.
- at least one groove may be formed on the surface of the lower contact portion contacting the moving unit. In this case, the grooves may have different depths depending on a predetermined degree that the flow control block closes or opens the flow of fluid in the microtubule for the main channel.
- the moving part may have a length corresponding to the closing or opening time of the fluid flow in the micro-tube for the main channel set in advance.
- at least one projection may be formed on the surface of the moving part in contact with the flow control block.
- the protrusions may have different heights depending on a predetermined degree that the flow control block closes or opens the flow of fluid in the microtubule for the main channel.
- the microfluidic analysis chip according to the present invention may further include a moving part positioned on a surface of the chip housing on which the flow control block is formed and having a disk shape.
- the moving part may have at least one protrusion formed at a position corresponding to the flow control block when the disc rotates on a surface corresponding to the flow control block.
- the protrusion may have a length of arc corresponding to the closing or opening time of the fluid flow in the microtubule for the predetermined main channel.
- the protrusions may have different heights depending on the degree of closing or opening the fluid flow in the microtubule for the predetermined main channel.
- a portion of the microtubule for the main channel may be curved.
- the protrusion formed on the surface of the movable part having the shape of the disc is formed at a position relatively close to the central point of the disc, the relatively short period of closing or opening of the fluid flow in the main channel, A relatively long period of closing or opening of the fluid flow in the microtubule can be formed at a position relatively far from the center point of the disk.
- the flow control block may have a shape in which a cross section of a region adjacent to the microtubule for the main channel becomes gradually smaller. Furthermore, the flow control block may have a hollow space formed at the center of the cross section.
- the flow of the sample can be controlled in various ways. This results in more reliable test results.
- selective mixing of the desired reagent and sample is possible, and the order of mixing can be controlled. This makes it possible to have versatility that allows various tests on one product. Sampling of samples or reagents is also possible.
- FIG. 1 is a cross-sectional view of a microfluidic analysis chip according to an embodiment of the present invention.
- FIG. 2 is an exemplary view in which a moving part is moved according to an embodiment of the present invention.
- FIG 3 is a cross-sectional view of a microfluidic analysis chip according to another embodiment of the present invention.
- FIG. 4 is a reference view closed for a time period in which the microtubule fluid flow for the main channel is designed according to the length of the bottom contact of the flow control block in accordance with one embodiment of the present disclosure
- FIG 5 is an exemplary view in which grooves are formed in the lower contact portion of the flow control block according to the present invention.
- FIG. 6 is a reference view closed for a period of time in which the fluid flow in the microtubule for the main channel is designed according to the length of the moving part according to another embodiment of the present invention.
- FIG. 7 is an exemplary view in which projections are formed on the surface of the moving part according to the present specification.
- FIGS. 8 and 9 are illustrations of a disk-shaped moving part according to the present invention.
- FIG. 10 is an exemplary view showing a curved shape of a partial area of the microtubule 120 for the main channel according to an embodiment of the present invention.
- FIG. 11 is a flow control reference diagram of a micro-tube for a main channel having a disk-shaped moving part and a curved section.
- Figure 12 is an exemplary illustration of a flow control block in the form of a pin in accordance with the present disclosure.
- spatially relative can be used to easily describe a correlation between an element and other elements.
- Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as “below” or “beneath” of another element may be placed “above” another element .
- the exemplary term “ below” can include both downward and upward directions.
- the components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.
- FIG. 1 is a cross-sectional view of a microfluidic analysis chip according to an embodiment of the present invention.
- a microfluidic analysis chip 100 may include a micro channel 120 for a main channel, a block entrance 130, and a flow control block 140.
- the main channel microtubule 120 is positioned within the chip housing 110 and serves to provide a space for reacting with the reagent while the sample injected from the sample injection port formed at one end moves to the other end.
- the block entrance 130 is formed on one side of the chip housing 110 and is connected to a side surface of the microchannel 120 for the main channel.
- three block outlets are formed on the lower surface of the chip housing 110 and connected to the lower surface of the microchannel 120 for the main channel.
- the embodiments shown in the drawings are merely examples for convenience of understanding and do not limit the scope of the present invention.
- the flow control block 140 may move through the block inlet / outlet 130 by an external force to close or open the flow of fluid in the main channel micro tube 120.
- FIG. 1 only two of the three block outlets are shown, and the flow control block is not shown at the leftmost block exit 130. Which is not intentionally shown to enhance understanding of the block access 130 in accordance with the present disclosure.
- the microfluidic analysis chip 100 may further include a moving unit 150 that moves along the path corresponding to the shape of the microtubule for the main channel and provides an external force in contact with the flow control block .
- FIG. 2 is an exemplary view in which a moving part is moved according to an embodiment of the present invention.
- FIG. 2 it can be seen that (a), (b), and (c) are represented according to the movement time of the moving unit 150.
- the three flow control blocks of the microfluidic analysis chip shown in FIG. 2 are referred to as a first flow control block 140-1, a second flow control block 140-2, and a third flow control block 140-3 I will name it.
- the moving unit 150 moves from left to right, it first meets the first flow control block 140-1.
- the first flow control block 140-1 is lifted by the moving part 150 to block the cross section of the main channel microtubule 120. [ This closes the flow of fluid in the microtubule (120) for the main channel.
- the first flow control block 140-1 is lowered and the second flow control block 140-2 is raised.
- the second flow control block 140-2 closes the flow of the fluid in the main channel micro-tube 120.
- the microfluidic analysis chip 100 includes the flow control block 140, the flow control block 140, (Not shown) that restores the flow control block 140 to its original position after the first flow channel 140 has moved in contact with the movement unit 150.
- FIG 3 is a cross-sectional view of a microfluidic analysis chip according to another embodiment of the present invention.
- a microfluidic analysis chip 100 may include a microtubule 120 for a main channel and a flow control block 140.
- a portion of the chip housing 110 which contacts the flow control block 140 among the regions surrounding the main channel micro-tubes, may be a flexible material.
- the flow control block 140 may apply a pressure to a portion of the flexible housing of the chip housing 110 to close or open the flow of fluid in the main channel micro-tube 120.
- 3 (a) to 3 (c) illustrate examples in which the flow control block 140 controls the fluid in the main channel micro tube 120 by applying pressure to the flexible material portion.
- the moving speed of the moving part 150 can be adjusted in adjusting the time for closing or opening the fluid flow through the flow control block 140. Meanwhile, the speed of the moving unit 150 is constant, but the time for contacting the flow control block 140 and the moving unit 150 may be adjusted to control the time for closing or opening the fluid flow.
- the flow control block 140 may have a lower contact portion 142 contacting the moving portion 150 by exposing the lower end surface of the flow control block to the outside.
- the lower contact 142 may have a length corresponding to the closing or opening time of the fluid flow in the micro-tube for the main channel.
- the flow control block 140 may further include a stopper 141 corresponding to the shape of the block access port 130.
- FIG. 4 is a reference view closed for a time period in which the microtubule fluid flow for the main channel is designed according to the length of the bottom contact of the flow control block in accordance with one embodiment of the present disclosure
- the flow control block 140 is composed of the stopper 141 and the lower end contact portion 142.
- the lower contact portion 142 has an arbitrary length 'L'. The length 'L' can be variously set according to the moving speed of the moving part 150 and the time to close or open the fluid flow in the micro-tube for the main channel.
- At least one groove 143 may be formed on the surface of the lower contact portion 142 that contacts the moving portion 150.
- FIG 5 is an exemplary view in which grooves are formed in the lower contact portion of the flow control block according to the present invention.
- the flow control block 140 moves downward by the shape and depth of the groove . That is, the grooves 143 may have different depths depending on a predetermined degree that the flow control block 140 closes or opens the flow of fluid in the main canal. Further, the groove 143 may have a step or an inclination in the inside, and may have various geometric shapes such as a triangle, a quadrangle, a semicircle, and a semi-ellipse. However, this specification does not limit the shape of the groove.
- FIG. 4 and 5 illustrate the case where the microfluidic analysis chip 100 has a block entrance and exit port.
- a part of the microfluidic analysis chip 100 is made of a flexible material, And the time required to close or open the fluid flow in the microtubule for the main channel by various shapes of the grooves formed on the surface of the lower contact portion 142.
- FIG. 4 and 5 illustrate embodiments in which the length of the lower end contact portion 142 of the flow control block is adjusted to control the opening or closing time of the microtubule 120 for the main channel.
- the shape of the moving part 150 did not change. Therefore, it is also possible to control the opening or closing time of the main channel micro tube 120 by changing the shape of the moving part 150.
- the moving part 150 may have a length corresponding to the closing or opening time of the fluid flow in the micro-tube for the main channel set in advance.
- FIG. 6 is a reference view closed for a period of time in which the fluid flow in the microtubule for the main channel is designed according to the length of the moving part according to another embodiment of the present invention.
- the moving unit 150 has an arbitrary length 'L'.
- the length 'L' can be variously set according to the moving speed of the moving part 150 and the time to close or open the fluid flow in the micro-tube for the main channel.
- the length 'L' of the moving part 150 can be variously set according to the moving speed of the moving part 150 and the time to close or open the fluid flow in the micro-tube for the main channel.
- At least one projection may be formed on the surface of the moving part 150 in contact with the flow control block.
- FIG. 7 is an exemplary view in which a moving part according to the present specification is provided with a slant, a step, or a projection on a surface.
- the protrusions 151 may have different heights depending on a predetermined degree that the flow control block 140 closes or opens the flow of fluid in the main canal. Further, the protrusions 151 may be formed in steps of various heights or may be formed at various angles, and may have various geometric shapes such as triangular, rectangular, semi-circular, and semi-elliptical. However, this specification does not limit the shape of the projection.
- FIG. 6 and 7 illustrate the case where the microfluidic analysis chip 100 has a block entrance and exit port.
- the length of the moving part 150 And the protrusion formed on the surface of the moving part 150 it is possible to set variously according to the time to close or open the fluid flow in the microtubule for the main channel.
- the embodiment has been described in which the moving part moves along a path corresponding to the shape of the micro channel for the main channel. That is, the moving part moves in a straight line or a curved line while maintaining the directionality.
- the microfluidic analysis chip 100 may further include a moving part 150 positioned on a surface of the chip housing 110 on which the flow control block 140 is formed and having a disk shape have. At least one protrusion may be formed at a position where the moving unit 150 is in contact with the flow control block 140 when the disc rotates on a surface corresponding to the flow control block 140.
- FIGS. 8 and 9 are illustrations of a disk-shaped moving part according to the present invention.
- the moving part 150 having a disk shape can be identified. Only the moving part 150 is shown separated from the housing of the microfluidic analysis chip for convenience of understanding.
- the moving unit 150 may rotate based on the center point.
- the upper surface of the moving part 150 is a surface corresponding to the flow control block 140.
- the upper surface of the moving part 150 may not directly contact the flow control block 140.
- a protrusion 151 is formed on the upper surface of the moving part 150.
- the position of the protrusion 151 is formed at a position where the protrusion 151 contacts the flow control block 140 when the disc rotates. Accordingly, the protrusion 151 comes into contact with the flow control block 140 as the moving part 150 is rotated.
- the three projections 151 shown in FIG. 7 are formed with a distance of 'L1 and L2 L3' with respect to the center point, respectively.
- the distances 'L1 and L2 L3' correspond to the positions where the flow control blocks of the microfluidic analysis chips are formed.
- the protrusion 151 may have a length of arc corresponding to the closing or opening time of the fluid flow in the microtubule for the predetermined main channel.
- the length of the protrusions is formed in the form of an arc so as to have the same distance with respect to the center point. Accordingly, when the original plate is rotated, the protrusion 151 and the flow control block 140 are brought into contact with each other by the length of the arc, thereby closing or opening the fluid flow in the microchannel for the main channel. Since the closing or opening time of the fluid flow in the main canal is set by the length of the arc, it is obvious that the length of the arc can be set to various values.
- FIG. 8B shows an example of a call having the same distance based on the center point.
- the call may have a spiral shape as in the embodiment shown in FIG. 8C.
- the protrusions 151 may have different heights depending on the degree of closing or opening the fluid flow in the pre-set microchannel for the main channel.
- the protrusions 151 may have various geometrical shapes such as steps of various heights, inclination of various angles, or triangles, squares, semicircles, and semi-ellipses. However, the present specification does not limit the shape of the projection 151.
- the flow control block 140 has been described for opening or closing the flow of fluid in the main channel for microtubes.
- the flow control block 140 may be utilized in various ways.
- the main channel micro-tube 120 is a straight line or a combination of straight lines.
- the shape of the microtubule 120 for the main channel according to the present specification is not limited to being a straight line.
- the microtubules 120 for the main channel according to the present specification may have a curved shape in some areas.
- FIG. 10 is an exemplary view showing a curved shape of a partial area of the microtubule 120 for the main channel according to an embodiment of the present invention.
- the microtubule 120 for a main channel may be formed in a straight line shape at one side, but may be formed in a curved line at the other side.
- the portion of the microtubule 120 for the main channel formed with the curved line may have various curvature radii and arc lengths.
- one curved line is formed from the point where the curved section starts to the point where the curved section ends, but the curvature gradually changes (or from the arbitrary center to the main channel microvessel 120)
- the overall shape may form a spiral shape (a cochlear shape or a whirl-shaped shape).
- a distance r1 from an arbitrary center 121 to a first point 122, a distance r2 from a center 121 to a second point 123, a distance r2 from a center 121 to a third point 124 ) Can be set to a gradually increasing value.
- the point that ends with respect to the point at which the entire curve section starts does not necessarily constitute 360 degrees, and a curved section can be formed by a desired length such as a half wheel, two wheels, etc. as needed.
- 10 is a plan view, the microtubes 120 for the main channel corresponding to the curved section in the chip housing may have different starting and end heights.
- the microtubules 120 for the main channel corresponding to the section may exist in a three-dimensional shape in a three-dimensional space, rather than two-dimensional on the same plane.
- the curved section may be formed at two or more points in the entire main channel micro tube 120.
- the curved section is formed as described above, it is possible to increase the length of the microtubule 120 for the main channel in a limited internal space of the chip housing.
- the moving part 150 having the above-mentioned disk-shaped shape, different flow control from the conventional microfluidic analysis chip is possible.
- FIG. 11 is a flow control reference diagram of a micro-tube for a main channel having a disk-shaped moving part and a curved section.
- the disk-shaped moving part 150 is formed with protrusions based on the center point.
- the projection may contact the flow control block to control the flow of fluid in the microtubule for the main channel, as described above.
- the same projection can repeatedly touch each time the flow control block at the same position rotates. That is, the same flow control effect can be repeatedly obtained while the disk rotates.
- the protrusion 152 at a position where the distance from the center point of the original plate becomes r1 is closed or closed at the first point 122 where the distance from the center 121 to the center channel micro tube 120 is r1
- the flow control block for opening can be repeatedly contacted each time the disk rotates.
- the protrusion 153 at a position where the distance from the center of the original plate is r2 is closed by opening or closing the second point 123 at which the distance from the center 121 to the center channel micro- So that the flow control block can be repeatedly contacted each time the disk rotates.
- the protrusions for example, the protrusions 152 located relatively close to the center point of the disc and the protrusions (e.g., protrusions 153) located relatively far from the center point of the disc have the same angular velocity, May be different.
- the protrusion relatively close to the center point has a relatively short length
- the protrusion relatively far from the center point has a relatively long length It should be long.
- the protrusion located relatively close to the center point has a relatively long time to open and close the main channel microtubule, The time for opening and closing the micro tube for the main channel will be relatively short.
- the microfluidic analysis chip 100 has the spiral (cochlear or whirl) type main microchannel 120 for the main channel, If there is a point that is required to be high, the microtubes for the main channel may be designed so that the point is located relatively far from the spiral center point. At this time, the center point of the spiral shape can be designed so as to be located at the position corresponding to the center point of the original plate in the moving part of the disk shape.
- the micro-tube for the main channel may be designed so that the point is located relatively close to the center point of the negative mode.
- the microfluidic analysis By designing the chip 100, it is possible to arrange the protrusions for opening / closing the corresponding points in a relatively longer (wider) space, and therefore, the margin for accommodating the larger number of protrusions and the spacing between the protrusions As a margin can be further secured, the microfluidic analysis chip 100 that can control the fluid flow more finely can be designed.
- the length, the number, the shape, or the interval of the protrusions can be variously set according to the time, the cycle, the frequency and the like for controlling the fluid.
- the flow control block 140 may have a shape (fin shape) in which the cross section of the region adjacent to the microtubule for the main channel gradually decreases.
- Figure 12 is an exemplary illustration of a flow control block in the form of a pin in accordance with the present disclosure.
- a reagent is contained in the microfluidic analysis chip.
- the reagent is a reagent set to react with a sample and analyze the result.
- the sample is separated from the main channel micro-tube 120 by a sealing film.
- the sealing membrane may be pierced through the flow control block.
- the flow control block 140 may be formed with a hollow space at the center of the cross section. It may be necessary to sample the fluid in the case where the sample in the microtubule for the main channel already flows or the sample and the reagent react. In this case, the flow control block 140 may be used for sampling. In other words, it can be understood as a role as a needle.
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Abstract
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Claims (15)
- 칩하우징 내에 위치하여 한 쪽 끝에는 형성된 시료 주입구로부터 투입된 시료가 다른 쪽 끝으로 이동하는 동안 시약과 반응하는 공간을 제공하는 메인채널용 미세관; 및외력에 의해 상기 칩하우징과 접촉하여 상기 메인채널용 미세관 내 유체의 흐름을 폐쇄 또는 개방시키는 적어도 하나 이상의 흐름제어블럭;을 포함하는 것을 특징으로 하는 미세유체분석칩.
- 청구항 1에 있어서,상기 칩하우징의 일면에 형성되어 상기 메인채널용 미세관의 측면과 연결된 적어도 하나 이상의 블럭 출입구;를 더 포함하고,상기 흐름제어블럭은, 상기 블럭 출입구를 통해 이동하여 상기 메인채널용 미세관 내 유체의 흐름을 폐쇄 또는 개방시키는 것을 특징으로 하는 미세유체분석칩.
- 청구항 1에 있어서,상기 칩하우징의 일부로서 상기 메인채널용 미세관을 감싸는 영역 중 상기 흐름제어블럭과 접촉하는 부분은 플렉시블한 재질이며,상기 흐름제어블럭은, 상기 칩하우징의 플렉시블한 재질로 이루어진 부분에 압력을 가하여 상기 메인채널용 미세관 내 유체의 흐름을 폐쇄 또는 개방시키는 것을 특징으로 하는 미세유체분석칩.
- 청구항 1에 있어서,상기 메인채널용 미세관의 형상과 대응된 경로를 따라 이동하면서 상기 흐름제어블럭과 접촉하여 외력을 제공하는 이동부;를 더 포함하는 것을 특징으로 하는 미세유체분석칩.
- 청구항 4에 있어서,상기 흐름제어블럭은, 상기 흐름제어블럭의 하단면을 외부에 노출시켜 상기 이동부와 접촉하는 하단접촉부;를 가지며,상기 하단접촉부는, 미리 설정된 메인채널용 미세관 내 유체 흐름의 폐쇄 또는 개방 시간에 대응되는 길이를 가진 것을 특징으로 하는 미세유체분석칩.
- 청구항 5에 있어서,상기 하단접촉부는, 상기 이동부와 접촉하는 표면에 적어도 1 이상의 홈이 형성되어 있으며,상기 홈은, 상기 흐름제어블럭이 상기 메인채널용 미세관 내 유체의 흐름을 폐쇄 또는 개방시키는 미리 설정된 정도에 따라 서로 다른 깊이를 가진 것을 특징으로 하는 미세유체분석칩.
- 청구항 4에 있어서,상기 이동부는, 미리 설정된 메인채널용 미세관 내 유체 흐름의 폐쇄 또는 개방 시간에 대응되는 길이를 가진 것을 특징으로 하는 미세유체분석칩.
- 청구항 7에 있어서,상기 이동부는, 상기 흐름제어블럭과 접촉하는 표면에 적어도 1 이상의 돌기가 형성되어 있으며,상기 돌기는, 상기 흐름제어블럭이 상기 메인채널용 미세관 내 유체의 흐름을 폐쇄 또는 개방시키는 미리 설정된 정도에 따라 서로 다른 높이를 가진 것을 특징으로 하는 미세유체분석칩.
- 청구항 1에 있어서,상기 칩하우징의 일면 중 상기 흐름제어블럭이 형성된 면에 위치하며 원판의 형상을 가진 이동부;를 더 포함하며,상기 이동부는, 상기 흐름제어블럭과 대응하는 표면에 상기 원판이 회전할 때 상기 흐름제어블럭과 접촉되는 위치에 적어도 하나 이상의 돌기가 형성된 것을 특징으로 하는 미세유체분석칩.
- 청구항 9에 있어서,상기 돌기는, 미리 설정된 메인채널용 미세관 내 유체 흐름의 폐쇄 또는 개방 시간에 대응되는 호의 길이를 가진 것을 특징으로 하는 미세유체분석칩.
- 청구항 9에 있어서,상기 돌기는, 미리 설정된 메인채널용 미세관 내 유체 흐름을 폐쇄하거나 개방시키는 정도에 따라 서로 다른 높이를 가진 것을 특징으로 하는 미세유체분석칩.
- 청구항 9에 있어서,상기 메인채널용 미세관의 일부 영역은 곡선 형태인 것을 특징으로 하는 미세유체분석칩.
- 청구항 9에 있어서,상기 메인채널용 미세관은, 상기 메인채널용 미세관 내 유체 흐름의 폐쇄 또는 개방의 주파수가 상대적으로 낮을 것이 요구되는 지점을 상기 원판의 중심점으로부터 거리가 상대적으로 가까운 위치에 갖고, 상기 주파수가 상대적으로 높을 것이 요구되는 지점을 상기 원판의 중심점으로부터 거리가 상대적으로 먼 위치에 갖도록 설계되는 것을 특징으로 하는 미세유체분석칩.
- 청구항 2에 있어서,상기 흐름제어블럭은, 상기 메인채널용 미세관과 인접한 영역의 단면이 점차 작아지는 형상인 것을 특징으로 하는 미세유체분석칩.
- 청구항 14에 있어서,상기 흐름제어블럭은, 상기 단면의 중심에 빈 공간이 형성된 것을 특징으로 하는 미세유체분석칩.
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| KR1020170158451A KR101986432B1 (ko) | 2017-11-24 | 2017-11-24 | 시료의 흐름을 조절할 수 있는 미세유체분석칩 |
| KR10-2017-0158451 | 2017-11-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20030009857A (ko) * | 2001-07-24 | 2003-02-05 | 엘지전자 주식회사 | 기판 내에서 유체를 조작하는 방법 및 이를 위한 장치 |
| US20030196695A1 (en) * | 2000-11-06 | 2003-10-23 | Nanostream, Inc. | Microfluidic flow control devices |
| KR20070106239A (ko) * | 2006-04-28 | 2007-11-01 | 삼성전자주식회사 | 미세유체 반응 용기, 이의 제조 방법 및, 이를 이용한미세유체 반응 방법 |
| US20080163946A1 (en) * | 2006-12-28 | 2008-07-10 | The Trustees Of California State University | Magnetically controlled valve for flow manipulation in polymer microfluidic devices |
| KR101399511B1 (ko) * | 2012-12-28 | 2014-05-27 | 재단법인대구경북과학기술원 | 미세 유체 칩을 이용한 유체 제어 장치 |
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| KR101065614B1 (ko) | 2008-11-28 | 2011-09-20 | 한국전기연구원 | 랩온어칩용 마이크로 펌프 및 마이크로 펌프 제조 방법. |
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- 2017-11-24 KR KR1020170158451A patent/KR101986432B1/ko active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030196695A1 (en) * | 2000-11-06 | 2003-10-23 | Nanostream, Inc. | Microfluidic flow control devices |
| KR20030009857A (ko) * | 2001-07-24 | 2003-02-05 | 엘지전자 주식회사 | 기판 내에서 유체를 조작하는 방법 및 이를 위한 장치 |
| KR20070106239A (ko) * | 2006-04-28 | 2007-11-01 | 삼성전자주식회사 | 미세유체 반응 용기, 이의 제조 방법 및, 이를 이용한미세유체 반응 방법 |
| US20080163946A1 (en) * | 2006-12-28 | 2008-07-10 | The Trustees Of California State University | Magnetically controlled valve for flow manipulation in polymer microfluidic devices |
| KR101399511B1 (ko) * | 2012-12-28 | 2014-05-27 | 재단법인대구경북과학기술원 | 미세 유체 칩을 이용한 유체 제어 장치 |
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| KR101986432B1 (ko) | 2019-06-10 |
| KR20190060345A (ko) | 2019-06-03 |
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