WO2022092586A1 - 항생제 감수성 검사 장치, 이의 항생제 감수성 검사 방법 및 이를 포함하는 시스템 - Google Patents
항생제 감수성 검사 장치, 이의 항생제 감수성 검사 방법 및 이를 포함하는 시스템 Download PDFInfo
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- WO2022092586A1 WO2022092586A1 PCT/KR2021/013207 KR2021013207W WO2022092586A1 WO 2022092586 A1 WO2022092586 A1 WO 2022092586A1 KR 2021013207 W KR2021013207 W KR 2021013207W WO 2022092586 A1 WO2022092586 A1 WO 2022092586A1
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- Prior art keywords
- region
- substrate
- antibiotic
- channel
- susceptibility testing
- Prior art date
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- 238000009635 antibiotic susceptibility testing Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims description 27
- 239000000758 substrate Substances 0.000 claims abstract description 68
- 238000002347 injection Methods 0.000 claims abstract description 37
- 239000007924 injection Substances 0.000 claims abstract description 37
- 239000011259 mixed solution Substances 0.000 claims abstract description 31
- 230000001580 bacterial effect Effects 0.000 claims abstract description 29
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 230000003115 biocidal effect Effects 0.000 claims description 39
- 239000000243 solution Substances 0.000 claims description 23
- 241000894006 Bacteria Species 0.000 claims description 20
- 239000003242 anti bacterial agent Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 10
- 239000012141 concentrate Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 230000002538 fungal effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000010191 image analysis Methods 0.000 claims description 2
- 230000000845 anti-microbial effect Effects 0.000 abstract 1
- 239000004599 antimicrobial Substances 0.000 abstract 1
- 229940088710 antibiotic agent Drugs 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 239000000470 constituent Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 238000002829 antibacterial sensitivity test Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
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
-
- 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
- B01L3/50273—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 or forces applied to move the fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
- B01L2200/0636—Focussing flows, e.g. to laminate flows
-
- 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
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0663—Whole sensors
-
- 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
- B01L2300/0803—Disc shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
- B01L2300/087—Multiple sequential chambers
-
- 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
- B01L2400/0409—Moving fluids with specific forces or mechanical means specific forces centrifugal forces
Definitions
- the present invention relates to an antibiotic susceptibility testing apparatus, a method for testing the antibiotic susceptibility thereof, and a system including the same, and more particularly, by using a centrifugal force to concentrate a mixture of antibiotics and a small amount of bacterial fluid into a concentrated area in a concentrated state to test for antibiotic susceptibility It relates to an antibiotic susceptibility test apparatus capable of performing the following, and an antibiotic susceptibility test method thereof, and a system including the same.
- Infectious diseases are diseases caused by pathogens that take many lives every year. Antibiotics were developed for the treatment of infections, and the lives of many infected patients could be saved through antibiotics, but on the other hand, antibiotic-resistant strains increased due to the indiscriminate use of antibiotics.
- AST antimicrobial susceptibility test
- the technical problem to be achieved by the present invention is an antibiotic susceptibility test apparatus capable of conducting an antibiotic susceptibility test by concentrating a mixture of antibiotics and a small amount of bacterial fluid in a concentrated state in a concentrated state using centrifugal force, its antibiotic susceptibility test method, and its method comprising the same to provide a system.
- Antibiotic susceptibility testing apparatus includes a substrate and a driving unit for rotating the substrate, the substrate, through the first injection hole and the first injection hole formed to penetrate the upper surface of the substrate A first for forming a path in the substrate through which the injected antibiotic, bacterial liquid, or a mixture thereof can move, and concentrating the mixed solution in a concentrated state by centrifugal force applied as the substrate rotates by the driving unit It may include a channel in which the region is formed.
- the channel may have a second region including a section whose width becomes narrower toward the first region in order to concentrate the mixed solution into the first region.
- the second region may further include a section in which the width becomes narrower toward the opposite side of the first region, and the reverse flow of the introduced mixed solution may be prevented by the narrowing section.
- the width of the first region may be the same as the width of one end of the second region and may be formed to have a uniform width.
- the width of the first region may be wider than the width of one end of the second region and may be formed to have a uniform width.
- the second region may further include a section protruding to the opposite side of the first region.
- the channel is a third region including a section whose width becomes narrower toward the second region so that the mixed solution can be transferred to the second region when the centrifugal force applied is equal to or greater than a reference value. can be formed.
- a fourth area for concentrating bacteria different from the bacteria concentrated in the first area may be formed.
- the channel may include a fifth region connecting the first region and the fourth region.
- the width of the fifth region may be formed to be relatively narrower than the widths of the first region and the fourth region.
- the width of the fifth region may be set so that bacteria of different sizes can be concentrated in the first region and the fourth region.
- the antibiotic susceptibility testing apparatus may further include a second injection hole formed to penetrate the upper surface of the substrate.
- the second injection hole may be formed at a position closer to the rotation axis of the substrate than the first injection hole into which the antibiotic is injected, so that the bacterial solution may be injected.
- a groove may be formed in the bottom surface of the channel at a position corresponding to the first injection hole.
- a groove may be formed in the bottom surface of the channel at a position corresponding to the first region.
- the antibiotic susceptibility test method comprises the steps of injecting and drying an antibiotic into a channel formed on the inside of a substrate, injecting a bacterial solution into the channel and mixing it with the dried antibiotic, and rotating the substrate to the antibiotic and applying a centrifugal force to the mixed solution of the bacterial solution, thereby concentrating the mixed solution in the concentration region of the channel.
- Antibiotic susceptibility testing system includes a substrate, a driving unit for rotating the substrate, an image acquisition unit for acquiring an image of the concentrated region of the substrate, and an image analysis unit for analyzing the image acquired from the image acquisition unit and, in the substrate, an injection hole formed to penetrate the upper surface of the substrate and a path through which antibiotics, bacteria solution, or a mixture thereof injected through the injection hole can move is formed in the substrate, and the driving unit and a channel in which the concentration region is formed to concentrate the mixed solution in a concentrated state by centrifugal force applied as the substrate rotates.
- Methods and apparatuses according to an embodiment of the present invention conduct an antibiotic susceptibility test by concentrating a mixture of antibiotic and bacterial fluid in a concentrated state using centrifugal force to conduct an antibiotic susceptibility test with only a small amount or minimal concentration of bacterial fluid. It has the advantage of being able to
- FIG. 1 is a cross-sectional view of an antibiotic susceptibility testing apparatus according to an embodiment of the present invention.
- FIG. 2 is a plan view of the antibiotic susceptibility testing apparatus of FIG. 1 .
- FIG. 3 is a diagram illustrating an embodiment of the channel of FIG. 2 .
- FIG. 4 is a diagram illustrating another embodiment of the channel of FIG. 2 .
- FIG. 5 is a diagram illustrating another embodiment of the channel of FIG. 2 .
- FIG. 6 is a diagram illustrating another embodiment of the channel of FIG. 2 .
- FIG. 7 is a view showing an antibiotic susceptibility test method using the antibiotic susceptibility test apparatus according to an embodiment of the present invention.
- FIG. 8 is a conceptual diagram of an antibiotic susceptibility test system according to an embodiment of the present invention.
- a component when referred to as “connected” or “connected” with another component, the component may be directly connected or directly connected to the other component, but in particular It should be understood that, unless there is a description to the contrary, it may be connected or connected through another element in the middle.
- ⁇ unit means a unit that processes at least one function or operation, which is a processor, a micro Processor (Micro Processor), Micro Controller (Micro Controller), CPU (Central Processing Unit), GPU (Graphics Processing Unit), APU (Accelerate Processor Unit), DSP (Drive Signal Processor), ASIC (Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array), etc.
- a micro Processor Micro Processor
- Micro Controller Micro Controller
- CPU Central Processing Unit
- GPU Graphics Processing Unit
- APU Accelerate Processor Unit
- DSP Drive Signal Processor
- ASIC Application Specific Integrated Circuit
- FPGA Field Programmable Gate Array
- each constituent unit in the present specification is merely a classification for each main function that each constituent unit is responsible for. That is, two or more components to be described below may be combined into one component, or one component may be divided into two or more for each more subdivided function.
- each of the constituent units to be described below may additionally perform some or all of the functions of other constituent units in addition to the main function it is responsible for. Of course, it can also be performed by being dedicated to it.
- FIG. 1 is a cross-sectional view of an antibiotic susceptibility testing apparatus according to an embodiment of the present invention.
- 2 is a plan view of the antibiotic susceptibility testing apparatus of FIG. 1 .
- the antibiotic susceptibility testing apparatus 10 may include a substrate 100 and a driving unit 200 .
- the substrate 100 may include channels 300 that form a path through which the antibiotic, the fungal solution, or a mixture thereof injected through the injection hole 310 can move.
- the substrate 100 may be formed of a transparent material so that the degree of growth of the strain in the bacterial solution mixed with the antibiotic can be checked from the outside.
- the substrate 100 may be a pre-processed substrate such as O 2 plasma treatment for improving hydrophilicity or gamma radiation treatment for sterilization.
- the substrate 100 may be formed in a circular shape.
- the driving unit 200 may apply a rotational force to the substrate 100 to rotate the substrate 100 based on the rotation axis AX-R located at the rotation center 305 of the substrate 100 .
- the driving unit 200 may include components for applying a rotational force, such as a power source, a motor, or a gear, to the substrate 100 .
- the mixed solution of the antibiotic and the bacterial solution injected into the channels 300 is concentrated at the ends of each of the channels 300 by centrifugal force applied as the substrate 100 rotates by the driving unit 200 , and the channels 300 ) At each end, a concentration region may be formed so that the mixed solution can be concentrated in a concentrated state.
- the channels 300 may be symmetrically disposed with respect to the rotation center 305 of the substrate 100 , and the mixture of antibiotics and bacteria liquid is concentrated at the farthest from the rotation center 305 . You can configure a focus area to focus on.
- the width d of the concentration region may be set according to the concentration of the bacterial solution used in the antibiotic susceptibility test apparatus 10 .
- the lower the concentration of the bacterial solution used in the antibiotic sensitivity test apparatus 10 the narrower the width (d) of the concentration region may be formed.
- channels 300 A detailed structure of the channels 300 will be described later with reference to FIGS. 3 to 6 .
- FIG. 3 is a diagram illustrating an embodiment of the channel of FIG. 2 .
- a plan view of the channel 300A is shown, and a cross-sectional view of the substrate 100 on which the channel 300A is formed is shown below.
- the channel 300A is formed inside the substrate 100 and may include a first region 320A to a fourth region 350A.
- a first injection hole 310 and a second injection hole 311 are formed in the first region 320A.
- the first injection hole 310 is formed to penetrate the upper surface of the substrate 100 so that antibiotics may be injected.
- the second injection hole 311 is formed to pass through the upper surface of the substrate 100 so that the fungicide may be injected.
- the second injection hole 311 may be formed at a position closer to the rotation axis of the substrate 100 (the left side in FIG. 3 ) than the first injection hole 310 .
- the first injection hole 310 and the second injection hole 311 may be implemented as one.
- the antibiotic and the bacterial solution may be injected into the channel 300A through the same injection hole.
- the wall BR of one side of the channel 300A may be formed at a position closer to the rotation axis of the substrate 100 (left in FIG. 3 ) than the second injection hole 311 .
- a first groove 101 may be formed in a position corresponding to the first injection hole 310 on the bottom surface of the channel 300A.
- the antibiotic when the antibiotic is injected through the first injection hole 310 , the antibiotic may be maintained in a state of being introduced into the first groove 101 . Thereafter, the antibiotic may be dried while being introduced into the first groove 101 .
- the bacterial solution injected through the second injection hole 311 may be mixed with the dried antibiotic while moving in a direction away from the rotation axis in the substrate 100 (right in FIG. 3 ) by centrifugal force.
- the second region 330A includes a section in which the width becomes narrower toward the third region 340A so that the mixed solution of the antibiotic and the bacterial solution can be delivered to the third region 340A when the centrifugal force applied is equal to or greater than the reference value. can do.
- the end of the second region 330A on the side of the third region 340A has a fine width, so that it can move to the third region 340A when the centrifugal force applied is equal to or greater than a reference value.
- the third region 340A may include a section in which the width becomes narrower toward the fourth region 350A in order to concentrate the mixed solution of antibiotic and bacterial liquid into the fourth region 350A according to centrifugal force.
- the third region 340A may include a section whose width becomes narrower toward the opposite side of the fourth region 350A. In this case, the reverse flow of the mixed solution of the introduced antibiotic and the bacterial solution can be prevented by the narrowing section.
- the fourth region 350A is a region in which the mixed solution of the antibiotic and the bacterial solution is finally concentrated and concentrated by the centrifugal force. By observing the degree to which bacteria increase in the mixed solution in the fourth region 350A, an antibiotic susceptibility test may be performed.
- the second groove 102 may be formed in a position corresponding to the fourth region 350A on the bottom surface of the channel 300A.
- the mixed solution of the antibiotic and the bacterial solution is finally concentrated by centrifugal force and concentrated toward the fourth region 350A, and in the fourth region 350A, the mixed solution is maintained in a state of being introduced into the first groove 101 by gravity.
- the width of the fourth region 350A may be the same as the width of the third region 340A and may be formed to have a uniform width.
- the bottom surface of the channel 300A may be inclined in a direction away from the rotation axis of the substrate 100 . In this case, the channel 300A may more effectively deliver the mixed solution of the antibiotic and the bacterial solution to the fourth region 350A.
- FIG. 4 is a diagram illustrating another embodiment of the channel of FIG. 2 .
- a plan view of the channel 300B is shown, and a cross-sectional view of the substrate 100 on which the channel 300B is formed is shown below.
- the channel 300B of FIG. 4 is compared with the channel 300A of FIG. 3 , except that one wall BR′ of the channel 300A is positioned relatively adjacent to the second injection hole 311 . It is substantially the same as channel 300A of 3.
- the channel 300B since one wall BR' of the channel 300A is adjacent to the second injection hole 311, the antibiotic injected through the first injection hole 310 and the second injection hole ( 311), the injected fungal liquid may be more effectively transferred to the fourth region 350B.
- FIG. 5 is a diagram illustrating another embodiment of the channel of FIG. 2 .
- the third region 340C is the opposite side of the fourth region 350C, that is, the section RG- protruding toward the second region 330C. PR) may be further included.
- the fourth region 350C of the channel 300C may be formed to have a wider and uniform width than the width of one end of the third region 340C.
- FIG. 6 is a diagram illustrating another embodiment of the channel of FIG. 2 .
- another embodiment 300D of a channel may include a first region 320D to a sixth region 370D.
- the channel 300D of FIG. 6 is a sixth area 370D for concentrating bacteria different from those concentrated in the fourth area 350D when a plurality of types of bacteria are included in the mixed solution of the antibiotic and the bacterial solution.
- the channel 300D may include a fifth region 360D that connects between the fourth region 350D and the sixth region 370D.
- the width of the fifth region 360D may be formed to be relatively narrower than the widths of the fourth region 350D and the sixth region 370D.
- the width of the fifth region 360D may be formed so that bacteria of different sizes can be concentrated in the fourth region 350D and the sixth region 370D.
- the magnitude of the centrifugal force applied is different according to the size of the different bacteria, and the width of the fifth region 360D may be set to a level of resistance enough to prevent the movement of bacteria receiving relatively little centrifugal force. .
- FIG. 7 is a view showing an antibiotic susceptibility test method using the antibiotic susceptibility test apparatus according to an embodiment of the present invention.
- the antibiotic is injected into the channel formed inside the substrate through the injection hole formed on the upper surface of the substrate in the first step (STEP1) and dried. there is.
- the antibiotic may be dried while being introduced into the groove formed on the lower surface of the channel.
- a bacterial solution may be injected into the dried antibiotic in the second step (STEP2) and mixed with the dried antibiotic.
- the substrate can be rotated by the driving unit in the third step (STEP3), and accordingly, centrifugal force is applied to the mixed solution of the antibiotic and the bacterial solution to concentrate the mixed solution in the concentration area of the channel.
- FIG. 8 is a conceptual diagram of an antibiotic susceptibility test system according to an embodiment of the present invention.
- the antibiotic susceptibility testing system 1000 includes a channel-formed substrate 100 , a driving unit 200 , a thin film 400 , an image acquisition unit 500 , and an image processing unit 600 . may include
- the thin film 400 may be covered on the upper portion of the substrate 100 .
- the thin film 400 seals the upper portion of the substrate 100 to prevent antibiotics and bacteria from escaping to the outside of the substrate 100 while the substrate 100 is rotated.
- the thin film 400 may function as an image background from which the image acquisition unit 500 may acquire a clear image of the fungus.
- the image acquisition unit 500 may acquire an image of a mixed solution of an antibiotic and a bacterial solution concentrated in a concentrated state in the concentration region of the substrate 100 .
- the image acquisition unit 500 may be implemented in various forms capable of acquiring images, such as a microscope (eg, an optical microscope, a small microscope, etc.), a camera of a smartphone, and the like.
- a microscope eg, an optical microscope, a small microscope, etc.
- a camera of a smartphone e.g., a smartphone, and the like.
- the image processing unit 600 may perform an antibiotic susceptibility test by processing the image of the bacteria acquired by the image acquisition unit 500 and acquiring data on changes in the amount of bacteria over time. For example, the image processing unit 600 may evaluate the antibiotic resistance of the corresponding bacteria according to the degree of increase in the amount of the bacteria over time.
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- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
Claims (17)
- 기판; 및상기 기판을 회전시키는 구동부를 포함하며,상기 기판은,상기 기판의 상면을 관통하도록 형성되는 제1주입 홀; 및상기 제1주입 홀을 통해 주입된 항생제, 균액, 또는 이들의 혼합액이 이동할 수 있는 경로를 상기 기판의 내부에 형성하며, 상기 구동부에 의하여 상기 기판이 회전함에 따라 가해지는 원심력에 의하여 상기 혼합액을 농축된 상태로 집중시키는 제1영역이 형성된 채널을 포함하는, 항생제 감수성 검사 장치.
- 제1항에 있어서,상기 채널은,상기 혼합액을 상기 제1영역으로 집중시키기 위하여 상기 제1영역 측으로 갈수록 폭이 좁아지는 구간을 포함하는 제2영역이 형성되는, 항생제 감수성 검사 장치.
- 제2항에 있어서,상기 제2영역은,상기 제1영역의 반대 측으로 갈수록 폭이 좁아지는 구간을 더 포함하며, 상기 폭이 좁아지는 구간에 의하여 유입된 상기 혼합액의 역류가 방지되는, 항생제 감수성 검사 장치.
- 제2항에 있어서,상기 제1영역의 폭은,상기 제2영역의 일단의 폭과 동일하고 균일한 폭으로 형성되는, 항생제 감수성 검사 장치.
- 제2항에 있어서,상기 제1영역의 폭은,상기 제2영역의 일단의 폭보다 넓고 균일한 폭으로 형성되는, 항생제 감수성 검사 장치.
- 제2항에 있어서,상기 제2영역은,상기 제1영역의 반대 측으로 돌출된 구간을 더 포함하는, 항생제 감수성 검사 장치.
- 제2항에 있어서,상기 채널은,가해지는 상기 원심력이 기준 수치 이상이 될 때 상기 혼합액을 상기 제2영역으로 전달시킬 수 있도록, 상기 제2영역 측으로 갈수록 폭이 좁아지는 구간을 포함하는 제3영역이 형성되는, 항생제 감수성 검사 장치.
- 제7항에 있어서,상기 채널은,상기 혼합액에 복수의 종류의 균들이 포함되는 경우에, 상기 제1영역에 집중되는 균과 서로 다른 균을 집중시키기 위한 제4영역이 형성되는, 항생제 감수성 검사 장치.
- 제8항에 있어서,상기 채널은,상기 제1영역과 상기 제4영역의 사이를 잇는 제5영역을 포함하는, 항생제 감수성 검사 장치.
- 제9항에 있어서,상기 제5영역의 폭은,상기 제1영역과 상기 제4영역의 폭보다 상대적으로 좁게 형성되는, 항생제 감수성 검사 장치.
- 제10항에 있어서,상기 제5영역의 폭은,상기 제1영역과 상기 제4영역에 서로 다른 크기의 균들이 집중될 수 있도록 설정되는, 항생제 감수성 검사 장치.
- 제1항에 있어서,상기 항생제 감수성 검사 장치는,상기 기판의 상면을 관통하도록 형성되는 제2주입 홀을 더 포함하는, 항생제 감수성 검사 장치.
- 제12항에 있어서,상기 제2주입 홀은,상기 항생제가 주입되는 상기 제1주입 홀보다 상기 기판의 회전 축에 더 가까운 위치에 형성되어 상기 균액이 주입되는, 항생제 감수성 검사 장치.
- 제1항에 있어서,상기 채널의 바닥면에는 상기 제1주입 홀에 상응하는 위치에 홈이 형성되는, 항생제 감수성 검사 장치.
- 제1항에 있어서,상기 채널의 바닥면에는 상기 제1영역에 상응하는 위치에 홈이 형성되는, 항생제 감수성 검사 장치.
- 기판의 내부에 형성된 채널로 항생제를 주입하고 건조시키는 단계;균액을 상기 채널로 주입하여 건조된 상기 항생제와 혼합하는 단계; 및상기 기판을 회전시켜 상기 항생제와 상기 균액의 혼합액에 원심력을 가함으로써 상기 혼합액을 상기 채널의 집중 영역에 집중시키는 단계를 포함하는, 항생제 감수성 검사 방법.
- 기판;상기 기판을 회전시키는 구동부;상기 기판의 집중 영역의 이미지를 획득하는 이미지 획득부; 및상기 이미지 획득부에서 획득한 이미지를 분석하는 이미지 분석부를 포함하며,상기 기판은,상기 기판의 상면을 관통하도록 형성되는 주입 홀; 및상기 주입 홀을 통해 주입된 항생제, 균액, 또는 이들의 혼합액이 이동할 수 있는 경로를 상기 기판의 내부에 형성하며, 상기 구동부에 의하여 상기 기판이 회전함에 따라 가해지는 원심력에 의하여 상기 혼합액을 농축된 상태로 집중시키는 상기 집중 영역이 형성된 채널을 포함하는, 항생제 감수성 검사 시스템.
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KR101398764B1 (ko) * | 2013-08-29 | 2014-05-27 | 강릉원주대학교산학협력단 | 입자의 이동에 의해 분석물질을 검출하는 장치 및 방법 |
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US20090233805A1 (en) * | 2005-08-31 | 2009-09-17 | Rohm Co., Ltd | Biochip and immunological analysis method |
KR20090118749A (ko) * | 2008-05-14 | 2009-11-18 | 삼성전자주식회사 | 동결건조시약이 저장된 미세유동장치 및 이를 이용한시료분석방법 |
KR20100007809A (ko) * | 2008-07-14 | 2010-01-22 | 삼성전자주식회사 | 미세유동장치, 이를 이용한 시료분석방법 및 희석비율측정방법 |
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