CN1763170A - Cell microinjection instrument - Google Patents
Cell microinjection instrument Download PDFInfo
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- CN1763170A CN1763170A CN 200410065016 CN200410065016A CN1763170A CN 1763170 A CN1763170 A CN 1763170A CN 200410065016 CN200410065016 CN 200410065016 CN 200410065016 A CN200410065016 A CN 200410065016A CN 1763170 A CN1763170 A CN 1763170A
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Abstract
The microscopic cell injecting instrument includes cell conveyer, cell injector, cell holder and digital control and drive system. In cell injection, cell is conveyed automatically with the cell conveyer and in microfluid conveying mode to the cell injector, and the outlet of the cell holder. During cell injection, all the cell conveyance, holding, cell membrane puncture with the injection needle, intracellular medicine injection, the withdrawn of injection needle, cell release and other microscopic operation steps are computer digital controlled in the same computer operating interface. The present invention has simple operation, high successful injection rate, and automatic separation and counting of injected and un-injected cells.
Description
Affiliated technical field
The present invention relates to a kind of cell microinjection instrument, it comprises cell delivery device, injection cell device, cell sticking device and Digital Control drive system, can realize the digitizing microinjection of cell.
Background technology
In the present prior art, cell microinjection mainly adopts manual type microinjection mode and active automatization to seek the injection cell mode.Manual type microinjection mode is an example with the manual micromanipulator of Japanese Nikon NT-88NE, the operator is the visual informations such as distance between enlarged image, pose, injection tool and the cell when the microscope naked-eye observation injection cell, adopt two cover armstrong's patent formula coarse adjustment to be installed on inverted microscope and manual type hydraulic pressure micro-adjusting mechanism is controlled the sticking pin respectively and the entry needle pair cell is sought, location, sticking and injection.Injection process depends on operator's self various factors strongly, as mood, fatigue etc. and environmental influence on every side.At present, can be engaged in the experimenter of this high degree of accuracy operation, at least will be through the strict training in 1 year, cost is very high, and injection cell success ratio has only about one of percentage.The injection cell mode is sought in active automatization to be by inverted microscope and to be installed in the observation that high-resolution camera on the microscope is finished pair cell, camera will gather to cell image utilize computer image processing technology to make cell be presented on the computer screen clearly, computer calculates and demarcates by control software pair cell current position after finding cell, and the micro devices that the micro-operation arm of guiding automatization control carries fixed cells such as the sticking pin of automatic holding cell or micro-clamp moves to the stationkeeping cell of demarcation.A lot of cells owing to suspending in the nutrient solution, cell is subjected to slight disturbance location will be changed, the cell of different positions is wanted the parameters such as focal length that clear expression all must adjust the telescope to one's eyes to be adjusted, therefore seek, localized efficiency ratio is lower, accurate positioning is subjected to the transmission accuracy of total system and the influence of control accuracy.How improving searching, aiming, localized speed and accuracy is the research focus of at present domestic and international research institution.In exploitation automatic cytological injecting systems and injection cell robot process, control and the innovation of operating aspect technical application are subjected to the restriction of micromechanics electronic technology, computer control and many technical developments such as image recognition technology, optical microscopy, and this technology still is in the experimental development stage.
Summary of the invention
The purpose of this invention is to provide a kind of cell microinjection instrument, when injection cell, adopt the microfluid carrying method,. the form with self-feeding arrives specified location with cell delivery, in injection process, the conveying of cell, sticking location, entry needle inserting needle carry out the computer digital that cytolemma puncture, cell inner liquid medicine calibrated shot, entry needle withdraw from the same operation interface that microscopic procedures such as cell, cell release are implemented in computer fully and control.This cell microinjection instrument is simple to operate, and the injection success rate height can be realized having injected with the cell of not injection and separate automatically and automatic counting.
The invention provides a kind of cell microinjection instrument, it comprises cell delivery device, injection cell device, cell sticking device and Digital Control drive system for this reason.Described cell delivery device comprises a stepped start-stop system digitizing e Foerderanlage by Piezoelectric Ceramic, the microsyringe of different size, and various micron order size internal diameters are carried the glass microchannel, are used to adjust accurate little transposition complete machine structure of microchannel position.
Adopt after the above-mentioned cell delivery device, when carrying out injection cell, the operator need not control the sticking pin in the mode of manual regulation or automatic control and adjustment and go to seek in cell culture fluid and the indefinite cell of sticking suspension when injection cell, but the nutrient solution that will contain cell is installed in the cell delivery device, makes nutrient solution do the micron order stepped start-stop system to outlet gradually through microchannel by driving and flows.Cell is wrapped in by nutrient solution and is single arrangement and is transported to specified location from the microtubule road junction one by one successively in microchannel, because sticking pin and entry needle have been adjusted to this position, the sticking pin is maintained fixed when carrying out the cell sticking, and entry needle is finished the cell piercing process with the single degree of freedom stretching motion of preset parameter.Whole process is implemented in the Digital Control under the same operation interface, and the injection cell process operation is simple, success ratio is high thereby make.And realize having injected with the cell of not injection and separate automatically and automatic juice number.
Description of drawings
Fig. 1 is the explanatory view that the present invention is used for the cell microinjection instrument of injection cell
Fig. 2 is the injection position synoptic diagram of embodiment shown in Figure 1
Fig. 3 is the cell delivery device principle schematic of embodiment shown in Figure 1
Embodiment
At first see Fig. 1, experimental installation is by cell delivery device 1 and carry microchannel 2 to form the cell delivery device, sticking pin 4 is formed with the sticking device 5 of the pressure assembly that can produce positive negative pressure and the injection cell device 18 of liquid medicine injection, in the cell sticking device 5 pressure transmitter is installed, pressure transmitter is connected by the computer 11 of pilot circuit with control cell delivery device.165 ° of microchannel 2 bendings are installed on the cell delivery device 1, and cell delivery device 1 is installed on the three-dimensional regulator 12 that can carry out the three-dimensional adjustment.Sticking pin 4 is bent into 135 °, and cell sticking device 5 is installed in horizontal plane 5 dimensions that have at 45 and adjusts on the right micro actuator 6 of function, and three-dimensional regulator 12 and left micro actuator 6 all are installed on the support of inverted microscope 7.Injection cell device 18 is installed on 17 on the micro actuator of a left side, is responsible for the injection of cell.
Fig. 2 is the injection position synoptic diagram of embodiment shown in the present, and the Stage microscope with inverted microscope 7 when cell delivery device 1 and sticking pin 4 are installed is at an angle, main possibility and the accessibility of considering installation.Utilize the three-dimensional micro positioner 12 of sticking pin 4 following right micro actuators 6 and adjustment cell delivery device 1 position, the medullary ray (axis) that can make transfer lime 2 outlet positions and the vertical and intersectant centerline at sticking pin 4 suction inlet positions in one plane are defined as principal plane with this plane.This plane is parallel with the table plane of inverted microscope 7.Adjust 17 adjustment injection cell devices, 18 locus on the left micro actuator on the syringe, make entry needle 19 and above-mentioned plane be 45.As shown in Figure 2.
The injection initial stage, the needle point internal diameter of this glass micropipette 19 of preresearch estimates also calculates critical spraying pressure, adjust pressure system 21, make system be added in the critical spraying pressure that micropin 19 interior pressure are slightly larger than micropin 19, open magnetic valve 20, needle point to be found is closed magnetic valve 20 after having liquid to penetrate, utilize thick fine setting to make transfer lime 2, sticking pin 4, entry needle 19 be the state of Fig. 2, the X-axis of control driving power 10 drives beginning among the figure, cell delivery device 1 is started working, cell 3 is near transfer lime road junction 2 in the microchannel 2, and this moment, the sticking pin was in negative pressure state
After injection finished, sticking pin 4 produced malleation, and the cell of having injected 3 that sticking is discharged in the nutrient solution 15.In a single day cell 3 breaks away from the pin mouth of sticking pin 4, pressure in the sticking pin 4 changes immediately, by pressure transmitter,, computer 11, control driving power 10 make cell delivery device 1 restart work, cell to be injected 5 beginning steppings in the microchannel 2 are moved to the microtubule road junction, begin next injection cell.
The ccd video camera 13 that is contained on the inverted microscope 7 can be gathered injection process, and the operator can be by the watch-dog monitoring ejection situation of computer 14.Register 16 can carry out the statistics of injection cell number by the positive/negative pressure change frequency of perception in cell delivery device 1.
Fig. 3 is a cell delivery device principle of the present invention, utilize the micrometric displacement characteristic of piezoelectric ceramics, design less than the micron order folk prescription to continuous step mechanism, the stepped start-stop system of realization cell 3 in microchannel 2 carries moving body 22 (mass M) and coasting body 20 (quality m) to be bonded in the both sides of piezoelectric ceramics 21 respectively, running fit between moving body 22 and the shell 24, do not contact between coasting body 20 and the shell 24, piezoelectric ceramics 21 is connected with driving power, sealing-ring 23 is arranged on the moving body 22, shell 24 glueds joint with microchannel 2 sealings, piezoelectric ceramics 22 discharges and recharges once, moving body 20 moves once as micron order, and the nutrient solutions 25 in the microchannel 2 are wrapped in the stepped start-stop systems that cell 3 is implemented in the microchannel 2 and carry.
Claims (8)
1. cell microinjection instrument, it comprises injection cell device, cell sticking device and drive system.It is characterized in that: described cell delivery device 1 one by one carries cell 3 to converge in an injection areas, and this zone is injection cell device 18 and cell sticking device 5 outlet regions.
2. cell microinjection instrument according to claim 1 is characterized in that: the driving power 10 of cell delivery device 1 adopts and is driven by computer 11, and conveying step-length and the frequency of cell 3 in microchannel 2 can realize Digital Control
3. cell microinjection instrument according to claim 1 is characterized in that: a counter 16 is arranged, and the change frequency of automated cell sticking device 5 interior gas pressure change signals offers register 16 and counts.
4. cell microinjection instrument according to claim 1 is characterized in that: being the cell of not injecting in cell delivery device 1, is the cell of having injected in the culture dish 15 that fills nutrient solution.
5. cell microinjection instrument according to claim 1 is characterized in that: described cell delivery device 1 is installed on the three-dimensional micro positioner 12, and three-dimensional micro positioner 12 is installed on the inverted microscope 7,
6. according to cell microinjection instrument according to claim 1, it is characterized in that: in the injection process, with the stationkeeping of carrying microchannel 2,19 of entry needles are done the single degree of freedom inserting needle and the withdraw of the needle in described injection cell device 18 injection process.
7. according to cell microinjection instrument according to claim 1, it is characterized in that: the driving power 10 of described cell sticking device 5 and injection cell device 18 adopts and carries out Digital Control by computer 11.
8. according to according to claim 1 or 7 described cell microinjection instruments, it is characterized in that: the sequential control that cell delivery device 1, cell sticking device 5, injection cell device are 18 by gas pressure change signals and electrical signal in the cell sticking device 5 by computer 11 controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100650167A CN100408668C (en) | 2004-10-19 | 2004-10-19 | Cell microinjection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100650167A CN100408668C (en) | 2004-10-19 | 2004-10-19 | Cell microinjection instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1763170A true CN1763170A (en) | 2006-04-26 |
| CN100408668C CN100408668C (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100650167A Expired - Fee Related CN100408668C (en) | 2004-10-19 | 2004-10-19 | Cell microinjection instrument |
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| CN (1) | CN100408668C (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481653B (en) * | 2008-01-11 | 2011-12-07 | 南京理工大学 | Single cell microoperation apparatus for microscopic injection |
| CN102352312A (en) * | 2011-07-21 | 2012-02-15 | 西安交通大学 | Integrated system of detection and injection of getting gene to cell and technology thereof |
| CN102755942A (en) * | 2012-07-04 | 2012-10-31 | 华瑞科学仪器(上海)有限公司 | Equipment and method for coating sensitive material on micro-heater |
| CN103087898A (en) * | 2013-01-04 | 2013-05-08 | 华南理工大学 | Swirl-based single-cell posture adjustment method |
| CN103255049A (en) * | 2013-05-20 | 2013-08-21 | 苏州大学 | Composite piezoelectric injection system and injection method |
| CN104630050A (en) * | 2015-01-19 | 2015-05-20 | 中国科学院物理研究所 | Micro/nano suction tube device for cell injection and extraction |
| CN105511511A (en) * | 2016-01-11 | 2016-04-20 | 浙江大学 | Fast hydraulic pressure control system |
| CN105511512A (en) * | 2016-01-11 | 2016-04-20 | 浙江大学 | Submicron precision water pressure control system |
| CN105631240A (en) * | 2016-01-07 | 2016-06-01 | 南开大学 | Youngs modulus method for batch measuring of cell pellucida based on microtube holding method |
| CN106148165A (en) * | 2016-07-21 | 2016-11-23 | 河海大学常州校区 | Micro-fluidic chip, injecting systems and method of work thereof for cell injection |
| CN106381264A (en) * | 2016-11-25 | 2017-02-08 | 哈尔滨工业大学 | Wide-range automatic positioning method of robot assisted microinjection system medium trace pipette needle point |
| CN107245431A (en) * | 2017-08-04 | 2017-10-13 | 重庆三峡医药高等专科学校 | A kind of microinjection device precisely injected for cell drug and its operating method |
| CN108070618A (en) * | 2017-12-12 | 2018-05-25 | 浙江海洋大学 | A kind of method of microinjection operation |
| CN111909839A (en) * | 2019-05-08 | 2020-11-10 | 香港城市大学深圳研究院 | System for delivering substances into cells, master control device, microcontroller and method |
| CN114134021A (en) * | 2021-11-30 | 2022-03-04 | 南开大学 | Single cell automatic transfer method without visual feedback |
| CN114591827A (en) * | 2022-01-25 | 2022-06-07 | 浙江大学 | High-flux cell micromanipulation device based on micro-fluidic chip and control method |
| CN115960698A (en) * | 2022-03-24 | 2023-04-14 | 无锡瑞思医疗科技有限公司 | Full-automatic sperm-egg plasma microinjection system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108122A (en) * | 1986-11-30 | 1988-01-13 | 华中农业大学 | The micromanipulator and the micromanipulation method that are used for bio-science |
| CN2360092Y (en) * | 1998-12-04 | 2000-01-26 | 广东工业大学 | Super-micro syringe |
| CN2360093Y (en) * | 1998-12-04 | 2000-01-26 | 广东工业大学 | Improved super-micro syringe |
-
2004
- 2004-10-19 CN CNB2004100650167A patent/CN100408668C/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481653B (en) * | 2008-01-11 | 2011-12-07 | 南京理工大学 | Single cell microoperation apparatus for microscopic injection |
| CN102352312B (en) * | 2011-07-21 | 2013-04-17 | 西安交通大学 | Integrated system of detection and injection of getting gene to cell and technology thereof |
| CN102352312A (en) * | 2011-07-21 | 2012-02-15 | 西安交通大学 | Integrated system of detection and injection of getting gene to cell and technology thereof |
| CN102755942B (en) * | 2012-07-04 | 2014-08-20 | 华瑞科学仪器(上海)有限公司 | Equipment and method for coating sensitive material on micro-heater |
| CN102755942A (en) * | 2012-07-04 | 2012-10-31 | 华瑞科学仪器(上海)有限公司 | Equipment and method for coating sensitive material on micro-heater |
| CN103087898A (en) * | 2013-01-04 | 2013-05-08 | 华南理工大学 | Swirl-based single-cell posture adjustment method |
| CN103255049A (en) * | 2013-05-20 | 2013-08-21 | 苏州大学 | Composite piezoelectric injection system and injection method |
| CN104630050A (en) * | 2015-01-19 | 2015-05-20 | 中国科学院物理研究所 | Micro/nano suction tube device for cell injection and extraction |
| CN104630050B (en) * | 2015-01-19 | 2017-06-27 | 中国科学院物理研究所 | A kind of cell injection and the micro-nano suction tube device for extracting |
| CN105631240A (en) * | 2016-01-07 | 2016-06-01 | 南开大学 | Youngs modulus method for batch measuring of cell pellucida based on microtube holding method |
| CN105511512B (en) * | 2016-01-11 | 2018-01-30 | 浙江大学 | Submicron order precision water pressure control system |
| CN105511511A (en) * | 2016-01-11 | 2016-04-20 | 浙江大学 | Fast hydraulic pressure control system |
| CN105511512A (en) * | 2016-01-11 | 2016-04-20 | 浙江大学 | Submicron precision water pressure control system |
| CN106148165A (en) * | 2016-07-21 | 2016-11-23 | 河海大学常州校区 | Micro-fluidic chip, injecting systems and method of work thereof for cell injection |
| CN106148165B (en) * | 2016-07-21 | 2019-04-12 | 河海大学常州校区 | Micro-fluidic chip, injecting systems and its working method for cell injection |
| CN106381264A (en) * | 2016-11-25 | 2017-02-08 | 哈尔滨工业大学 | Wide-range automatic positioning method of robot assisted microinjection system medium trace pipette needle point |
| CN107245431A (en) * | 2017-08-04 | 2017-10-13 | 重庆三峡医药高等专科学校 | A kind of microinjection device precisely injected for cell drug and its operating method |
| CN108070618A (en) * | 2017-12-12 | 2018-05-25 | 浙江海洋大学 | A kind of method of microinjection operation |
| CN108070618B (en) * | 2017-12-12 | 2021-03-05 | 浙江海洋大学 | Microinjection operation method |
| CN111909839A (en) * | 2019-05-08 | 2020-11-10 | 香港城市大学深圳研究院 | System for delivering substances into cells, master control device, microcontroller and method |
| CN114134021A (en) * | 2021-11-30 | 2022-03-04 | 南开大学 | Single cell automatic transfer method without visual feedback |
| CN114134021B (en) * | 2021-11-30 | 2023-12-26 | 南开大学 | Single cell automatic transfer method without visual feedback |
| CN114591827A (en) * | 2022-01-25 | 2022-06-07 | 浙江大学 | High-flux cell micromanipulation device based on micro-fluidic chip and control method |
| CN115960698A (en) * | 2022-03-24 | 2023-04-14 | 无锡瑞思医疗科技有限公司 | Full-automatic sperm-egg plasma microinjection system |
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| CN100408668C (en) | 2008-08-06 |
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