CN202049159U - Automatic bacterium sorting and labeling device based on immune method - Google Patents
Automatic bacterium sorting and labeling device based on immune method Download PDFInfo
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- CN202049159U CN202049159U CN2011201029422U CN201120102942U CN202049159U CN 202049159 U CN202049159 U CN 202049159U CN 2011201029422 U CN2011201029422 U CN 2011201029422U CN 201120102942 U CN201120102942 U CN 201120102942U CN 202049159 U CN202049159 U CN 202049159U
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Abstract
The utility model discloses an automatic bacterium sorting and labeling device based on an immune method, which comprises a control unit, a liquid sample conveying unit, and a sorting and labeling unit, wherein, the sorting and labeling unit is provided with a magnetic bead cavity, a fluorescent substance cavity, a cleaning liquid cavity, a waste liquid cavity and a sample liquid cavity which are independent of each other; a revocable magnetic field is arranged on the periphery of the sample liquid cavity; the liquid sample conveying unit comprises an injection pump, a transfer column and a gating slide block which are connected with each other in sequence; the gating slide block is mounted on a slide rail and provided with a driving motor; the control unit controls the motor to drive the gating slide blocked to be connected with any one of the magnetic bead cavity, the fluorescent substance cavity, the cleaning liquid cavity, the waste liquid cavity and the sample liquid cavity; and electromagnetic valves are arranged on channels where the magnetic bead cavity, the fluorescent substance cavity, the cleaning liquid cavity, the waste liquid cavity and the sample liquid cavity are respectively connected with the gating slide block. The automatic bacterium sorting and labeling device can accurate control the liquid volume, avoids errors caused by manual operation, and has high repeatability.
Description
Technical field
The utility model belongs to biological specimen sorting technology field, based on the bacterium sorting technology field of immunization, particularly, is the automatic sorting indicia device of a kind of bacterium based on immunization method particularly.
Background technology
Along with the continuous development of life science, biology of bacteria all needs to separate and purification of bacterial from the mixing sample that contains different bacterium with the Clinics and Practices of amynologic basis research and clinical disease.Existing bacterium separation technology mainly contains Ficoll density gradient centrifugation, centrifugal wash-out, aqueous two-phase separation etc., these methods all are to utilize the bacterium size, density, the feature of physical propertys such as surface charge is separated, and is difficult to obtain the comparatively desirable purity and the recovery.Cell sorting based on magnetic bead is a cell separation technology that develops rapidly in recent years, mark antibody molecule on magnetic bead at first, make itself and the combination of cell generation specificity, relend the effect that helps external magnetic field, make separating of and realization purpose cell mobile with the cell generation orientation of magnetic bead combination.The method is easy and simple to handle, rapid, does not need extensive instrument, and can obtain the higher purity and the recovery.
The method of traditional bacterial detection comprises separation and Culture, biochemical identification etc., they operate loaded down with trivial details consuming time, sensitivity is low and specificity is not high, can not realize effective monitoring effect.Along with immunology, biological chemistry, molecular biological continuous development, created many quick, responsive microbiological test methods in recent years, accelerated the speed of Micro biological Tests, significantly improved detection level, but they also there is corresponding deficiency separately.The cultivation expense is lower, and the susceptibility height be classical detection method, but this method length consuming time does not meet the requirement of field quick detection; Gold mark method detection speed is fast, but can only do qualitative detection, and susceptibility is lower, and disturbing factor is more; Enzyme linked immunosorbent assay (ELISA) susceptibility height, but it is more to influence result's disturbing factor, and need the professional to operate, and some positive judgement need be based upon on the statistical basis, and subjectivity is bigger; The latex agglutination detection speed is fast, susceptibility height but reagent storage request height, aggegation easily; And it is fast to have a detection speed based on the particle detecting method of flow type cell principle, and therefore susceptibility and accuracy advantages of higher have obtained application more and more widely.
For fluidic cell detects, generally all need sample is carried out sorting enrichment and fluorescence labeling, the specific implementation method adopts manual form usually.Operating personnel use immunomagnetic beads, fluorescent material, sorting test tube or consumptive material and instruments such as sorting post, magnetic force frame, finish whole sorting, mark flow process by hand.Whole process does not need complex apparatus, and form is flexible, cost is lower, is fit to all kinds of breadboard daily fragmentary sortings, mark use.When needs frequently carry out sorting, mark and each sample size when big, need the sorting indicia device of robotization badly.In addition, such as a lot of application scenarios such as inspection and quarantine, biological anti-terrorism, environmental monitoring, owing to often contain various pathogen or other objectionable impuritiess in the field samples, so the magnetic sorting behind the sample introduction should carry out in the space of relative closure, to avoid the pollution that leaks.
The utility model content
The utility model provides a kind of bacterium based on immunization method automatic sorting indicia device for solving the technical matters that exists in the known technology.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: the automatic sorting indicia device of a kind of bacterium based on immunization method comprises control module, liquid sample transmission unit and sorting indicia unit;
Described sorting indicia unit is provided with separate magnetic bead chamber, fluorescent material chamber, cleans sap cavity, waste liquid chamber and sample sap cavity, and the periphery of described sample sap cavity is provided with revocable magnetic field;
Described liquid sample transmission unit comprises syringe pump, middle rotary column and the gating slide block that links to each other successively, described gating slide block is installed on the slide rail, described gating slide block is provided with drive motor, described control module control motor-driven gating slide block and magnetic bead chamber, fluorescent material chamber, clean sap cavity, waste liquid chamber and be connected, on described magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity and passage that the gating slide block is connected, be equipped with solenoid valve with in the sample sap cavity any one.
The periphery of described sample sap cavity is provided with electromagnet.
The inner cavity chamber of described magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity all is infundibulate, and the lowermost end of described magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity is provided with the passage that is connected with the gating slide block.
The inwall of rotary column, magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity all passes through the silanization hydrophobic treatments in described.
Advantage and the good effect that the utlity model has are:
1) can realize parallel sorting and the fluorescence labeling of multiple purpose bacterium, improve treatment effeciency.
2) compare with the hand-sorting fluorescence labeling, the action of precise injection pump can realize the accurate control to liquid measure to promote the liquid stream in the pipeline, has avoided manually-operated error, has the repeatability of height.
3) each step process is all carried out in chamber that seals and pipeline behind the application of sample, can prevent effectively that sample from leaking and the pollution of environment to external world, is particularly suitable for the operation to dangerous substances such as pathogen.
4) this device can be finished from being sorted into the whole sample process process of fluorescence labeling, has realized functional integrity.
Description of drawings
Fig. 1 is the structural representation of a kind of automatic sorting indicia device based on immunization method of the utility model.
Among the figure: 1, control module, 2, the precise injection pump, 3, middle rotary column, 4, magnetic bead chamber, 5, the fluorescent material chamber, 6, clean sap cavity, 7, waste liquid chamber, 8, the sample sap cavity, 9, electromagnet, 10, magnetic bead chamber solenoid valve, 11, slide rail, 12, the gating slide block, 13, fluorescent material chamber solenoid valve, 14, clean the sap cavity solenoid valve, 15, waste liquid chamber solenoid valve, 16, sample sap cavity solenoid valve.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, a kind of automatic sorting indicia device based on immunization method comprises control module 1, liquid sample transmission unit and sorting indicia unit.
Above-mentioned sorting indicia unit is provided with separate magnetic bead chamber 4, fluorescent material chamber 5, cleans sap cavity 6, waste liquid chamber 7 and sample sap cavity 8, and the periphery of sample sap cavity 8 is provided with revocable magnetic field; In the present embodiment, revocable magnetic field realizes that by electromagnet 9 is set in sample sap cavity 8 peripheries the magnetic pole end face of electromagnet 9 and the outer wall of sample sap cavity 8 fit tightly, and control module 1 is controlled electromagnet 9 break-makes, can realize the loading in magnetic field and cancels; Above-mentioned electromagnet can be a permanent magnet also, by motion, makes permanent magnet away from the sample sap cavity, realizes the loading in magnetic field and cancels.The inner cavity chamber of magnetic bead chamber 4, fluorescent material chamber 5, cleaning sap cavity 6, waste liquid chamber 7 and sample sap cavity 8 all is infundibulate, and the lowermost end of funnel is provided with the passage that is connected with gating slide block 12, and passage is provided with solenoid valve.The inwall of magnetic bead chamber 4, fluorescent material chamber 5, cleaning sap cavity 6, waste liquid chamber 7 and sample sap cavity 8 all passes through the silanization hydrophobic treatments.
Above-mentioned liquid sample transmission unit comprises precise injection pump 2, middle rotary column 3 and the gating slide block 12 that links to each other successively, gating slide block 12 is installed on the slide rail 11, gating slide block 12 is provided with drive motor, and control module 1 control motor-driven gating slide block 12 and magnetic bead chamber 4, fluorescent material chamber 5, cleaning sap cavity 6, waste liquid chamber 7 are connected with in the sample sap cavity 8 any one.The inwall of middle rotary column 3 is through the silanization hydrophobic treatments.The drive motor of control module 1 control precise injection pump 2, magnetic bead chamber solenoid valve 10, fluorescent material chamber solenoid valve 13, cleaning sap cavity solenoid valve 14, waste liquid chamber solenoid valve 15 and sample sap cavity solenoid valve 16 and electromagnet 9 and gating slide block 12 presses setting process and sequential is carried out corresponding action; The drive motor rotation of control module 1 control gating slide block 12, thereby driving gating slide block 12 moves on slide rail 11, change the position of gating slide block 12, the gating of rotary column 3 and sorting indicia unit different chamber in the realization, the suction movement that cooperates precise injection pump 2 realizes the circulation of liquid between different chamber.
Adopt said apparatus to carry out the method for automatic sorting indicia:
1) magnetic bead coated antibody molecule: magnetic bead, crosslinking chemical and antibody molecule are mixed, obtain the crosslinked immunomagnetic beads that antibody molecule is arranged, antibody capable crosslinked on the described immunomagnetic beads combines with purpose bacterium specificity;
2) fluorescent material coated antibody molecule: fluorescent material, crosslinking chemical and antibody molecule are mixed, obtain the crosslinked immunofluorescence material that antibody molecule is arranged, the crosslinked antibody molecule of described fluorescent material can combine with purpose bacterium specificity;
3) analyte sample fluid is added the sample sap cavity 8 of sorting indicia unit, the magnetic bead chamber 4 that immunomagnetic beads is added the sorting indicia unit, with the crosslinked fluorescent material chamber 5 that the fluorescent material adding sorting indicia unit of antibody molecule is arranged, cleaning fluid is added the cleaning sap cavity 6 of sorting indicia unit;
4) combining of immunomagnetic beads and purpose bacterium: under the control of control module 1, motor-driven gating slide block 12 moves on slide rail 11, gating magnetic bead chamber 4 at first, and magnetic bead chamber solenoid valve 10 is opened, rotary column 3 during precise injection pump 2 sucks immunomagnetic beads, magnetic bead chamber solenoid valve 10 cuts out; Motor-driven gating slide block 12 moves to sample sap cavity 8 on slide rail 11, sample sap cavity solenoid valve 16 is opened, precise injection pump 2 injects sample sap cavity 8 with immunomagnetic beads, hatch 10-60min at 15-40 ℃, the abundant mixing of analyte sample fluid in the sample sap cavity 8 and immunomagnetic beads, make the crosslinked antibody of purpose bacterium surface antigen and immunomagnetic beads that the specificity combination fully take place, immunomagnetic beads is finished the catching of purpose bacterium, and obtains immunomagnetic beads and purpose bacterium compound;
5) magnetic separates: add magnetic field, immunomagnetic beads and purpose bacterium compound are adsorbed onto on the inwall of sample sap cavity 8, use externally-applied magnetic field to carry out magnetic and separate, the purpose bacterium is separated from analyte sample fluid;
6) clean: rotary column 3 during precise injection pump 2 sucks the liquid in the sample sap cavity 8, close sample sap cavity solenoid valve 16; Under the control of control module 1, motor-driven gating slide block 12 moves on slide rail 11, and gating slide block 12 moves to the waste liquid chamber 7 of sorting indicia unit, and waste liquid chamber solenoid valve 15 is opened, precise injection pump 2 injects waste liquid chamber 7 with the liquid in the middle rotary column 3, and waste liquid chamber solenoid valve 15 cuts out; Gating slide block 12 moves to and cleans sap cavity 6, cleans sap cavity solenoid valve 14 and opens, and rotary column 3 during precise injection pump 2 sucks cleaning fluid cleans sap cavity solenoid valve 14 and closes; Gating slide block 12 moves to sample sap cavity 8, and sample sap cavity solenoid valve 16 is opened, and precise injection pump 2 injects sample sap cavity 8 with cleaning fluid, flushing sample sap cavity 8; Repeat above-mentioned cleaning process, clean the bacterium that goes non-specific binding, up to the magnetic bead that obtains purifying-purpose bacterium complex;
7) fluorescent material mark purpose bacterium: under the control of control module 1, motor-driven gating slide block 12 gating fluorescent material chambeies 5, fluorescent material chamber solenoid valve 13 is opened, rotary column 3 during precise injection pump 2 sucks the crosslinked fluorescent material that antibody molecule arranged, and fluorescent material chamber solenoid valve 13 cuts out; Motor-driven gating slide block 12 moves to the sample sap cavity on slide rail 11, sample sap cavity solenoid valve 8 is opened, precise injection pump 2 has the fluorescent material of antibody molecule to inject sample sap cavity 8 with crosslinked, cancel magnetic field, magnetic bead in the sample sap cavity 8-purpose bacterium complex and the crosslinked abundant mixing of fluorescent material that antibody molecule is arranged, hatch 10-60min at 15-40 ℃, make the crosslinked antibody molecule of purpose bacterium surface antigen and fluorescent material that the specificity combination fully take place, make fluorescent material be combined in the purpose bacterium surface, form magnetic bead-purpose bacterium-fluorescent material complex, finish dyeing the purpose bacterium; Add magnetic field, magnetic bead-purpose bacterium-fluorescent material complex be adsorbed onto on the inwall of sample sap cavity 8 repeating step 6), the fluorescent material of flush away free state is up to the magnetic bead that obtains purifying in sample sap cavity 8-purpose bacterium-fluorescent material complex.
The antibody molecule of quilt that above-mentioned magnetic bead wraps can be a kind of, also can be two kinds, even two or more, and the antibody of multiple purpose bacterium can be realized the parallel capture to multiple purpose bacterium.In like manner, the antibody molecule of quilt that fluorescent material wraps can be a kind of, also can be two kinds, even two or more, and the antibody of multiple purpose bacterium can be realized the parallel dyeing to multiple purpose bacterium.
The antibody molecule of quilt that described magnetic bead wraps is purpose bacterium surface antigen monoclonal antibody or two anti-coupling monoclonal antibodies again.The antibody molecule of quilt that described fluorescent material wraps is purpose bacterium surface antigen monoclonal antibody or two anti-coupling monoclonal antibodies again.
Described fluorescent material is that monochromatic quantum dot, fluorescence-encoded quantum dot, many quantum dots are inlayed any one in assembling microballoon and the fluorescent dye.
Described magnetic bead bag by the antibody molecule of antibody molecule and quilt that described fluorescent material wraps can be identical, also can be different.Described magnetic bead bag by antibody molecule and the antibody molecule of quilt that described fluorescent material wraps not simultaneously, can play the effect of cross validation to the purpose bacterium.
Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (4)
1. the automatic sorting indicia device of the bacterium based on immunization method is characterized in that, comprises control module, liquid sample transmission unit and sorting indicia unit;
Described sorting indicia unit is provided with separate magnetic bead chamber, fluorescent material chamber, cleans sap cavity, waste liquid chamber and sample sap cavity, and the periphery of described sample sap cavity is provided with revocable magnetic field;
Described liquid sample transmission unit comprises syringe pump, middle rotary column and the gating slide block that links to each other successively, described gating slide block is installed on the slide rail, described gating slide block is provided with drive motor, described control module control motor-driven gating slide block and magnetic bead chamber, fluorescent material chamber, clean sap cavity, waste liquid chamber and be connected, on described magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity and passage that the gating slide block is connected, be equipped with solenoid valve with in the sample sap cavity any one.
2. automatic sorting indicia device according to claim 1 is characterized in that the periphery of described sample sap cavity is provided with electromagnet.
3. automatic sorting indicia device according to claim 1 and 2, it is characterized in that, the inner cavity chamber of described magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity all is infundibulate, and the lowermost end of described magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity is provided with the passage that is connected with the gating slide block.
4. automatic sorting indicia device according to claim 1 and 2 is characterized in that, the inwall of described middle rotary column, magnetic bead chamber, fluorescent material chamber, cleaning sap cavity, waste liquid chamber and sample sap cavity all passes through the silanization hydrophobic treatments.
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| CN2011201029422U CN202049159U (en) | 2011-04-11 | 2011-04-11 | Automatic bacterium sorting and labeling device based on immune method |
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| CN2011201029422U CN202049159U (en) | 2011-04-11 | 2011-04-11 | Automatic bacterium sorting and labeling device based on immune method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243234A (en) * | 2011-04-11 | 2011-11-16 | 中国人民解放军军事医学科学院卫生装备研究所 | Automatic bacterial sorting and labeling method based on immune method, and apparatus thereof |
| CN107063815A (en) * | 2017-03-14 | 2017-08-18 | 骏实生物科技(上海)有限公司 | A kind of automatic dye cleaning device for medical treatment detection device |
| CN108414752A (en) * | 2018-03-28 | 2018-08-17 | 黄河科技学院 | A kind of bacterium automatic sorting labeling method and device based on immunization method |
| CN109536434A (en) * | 2017-09-21 | 2019-03-29 | 北京航空航天大学青岛研究院 | Cell screening method and system based on immunomagnetic beads label |
| CN113030050A (en) * | 2021-03-13 | 2021-06-25 | 长春长光辰英生物科学仪器有限公司 | Cell detection device with self-flushing structure and flushing method |
-
2011
- 2011-04-11 CN CN2011201029422U patent/CN202049159U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243234A (en) * | 2011-04-11 | 2011-11-16 | 中国人民解放军军事医学科学院卫生装备研究所 | Automatic bacterial sorting and labeling method based on immune method, and apparatus thereof |
| CN102243234B (en) * | 2011-04-11 | 2013-10-02 | 中国人民解放军军事医学科学院卫生装备研究所 | Automatic bacterial sorting and labeling method based on immune method, and apparatus thereof |
| CN107063815A (en) * | 2017-03-14 | 2017-08-18 | 骏实生物科技(上海)有限公司 | A kind of automatic dye cleaning device for medical treatment detection device |
| CN109536434A (en) * | 2017-09-21 | 2019-03-29 | 北京航空航天大学青岛研究院 | Cell screening method and system based on immunomagnetic beads label |
| CN109536434B (en) * | 2017-09-21 | 2022-04-29 | 北京航空航天大学青岛研究院 | Method and system for screening cells based on immunomagnetic bead labeling |
| CN108414752A (en) * | 2018-03-28 | 2018-08-17 | 黄河科技学院 | A kind of bacterium automatic sorting labeling method and device based on immunization method |
| CN113030050A (en) * | 2021-03-13 | 2021-06-25 | 长春长光辰英生物科学仪器有限公司 | Cell detection device with self-flushing structure and flushing method |
| CN113030050B (en) * | 2021-03-13 | 2023-10-03 | 长春长光辰英生物科学仪器有限公司 | Cell detection device with self-flushing structure and flushing method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20180411 |