CN111500419B - Stem cell separation device - Google Patents
Stem cell separation device Download PDFInfo
- Publication number
- CN111500419B CN111500419B CN202010351069.4A CN202010351069A CN111500419B CN 111500419 B CN111500419 B CN 111500419B CN 202010351069 A CN202010351069 A CN 202010351069A CN 111500419 B CN111500419 B CN 111500419B
- Authority
- CN
- China
- Prior art keywords
- hole
- sleeve
- stem cell
- filter screen
- separation device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/02—Form or structure of the vessel
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/14—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus with filters, sieves or membranes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M37/00—Means for sterilizing, maintaining sterile conditions or avoiding chemical or biological contamination
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/04—Cell isolation or sorting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical & Material Sciences (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Sustainable Development (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Clinical Laboratory Science (AREA)
- Cell Biology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses a stem cell separation device which comprises a tank body, a sleeve, a cell screen and a water pushing piston, wherein openings are formed in two ends of the sleeve and are fixed in the tank body through a bracket, the water pushing piston moves at the lower part of the sleeve, a first filter screen is arranged at the upper part of the sleeve, a second filter screen is arranged in the sleeve below the cell screen, a first through hole is formed in the second filter screen, a first one-way baffle which is opened downwards is arranged in the first through hole, a second through hole is formed in the side wall of the sleeve, a second one-way baffle which is opened outwards is arranged in the second through hole, a metal block is arranged in the water pushing piston, a magnet is arranged outside the tank body, the magnet and the metal block are attracted mutually, and the magnet drives the metal block to move up and down along the tank body. The invention provides a stem cell separation device, which improves the cell separation efficiency and is convenient for cleaning and disinfection.
Description
Technical Field
The invention relates to the technical field of stem cell separation, in particular to a stem cell separation device.
Background
Stem cells have great significance in the medical field, and along with research of stem cells, the separation technology of stem cells is more and more paid attention to. The stem cell separation device can adopt a cell screen to separate, the efficiency of separation can be improved by pressurizing a sample in the separation process, the separation efficiency is improved by pressurizing an air bag in the prior art, but the air bag is pressurized to introduce external gas, so that the risk of sample pollution caused by introducing bacteria is still present even if a sterilizing filter is arranged for bacterial separation, meanwhile, the cell dispersion can not be promoted by forming reverse liquid flow through gas pressurization, and the separation efficiency can be influenced by the blockage generated by the cell screen.
Disclosure of Invention
Aiming at the prior art, the invention aims to provide the stem cell separation device which has the advantages of improving the cell separation efficiency, facilitating cleaning and disinfection, reducing the blockage of a cell screen and having high separation efficiency.
The technical scheme of the invention is realized as follows:
the utility model provides a stem cell separator, includes jar body, sleeve, cell screen cloth and pushes away the water piston, the sleeve both ends are equipped with the opening and are in through the support is fixed in the jar body, it is in to push away the water piston telescopic lower part motion, telescopic upper portion is equipped with the cell screen cloth, the sleeve with be equipped with first filter screen between the jar body, cell screen cloth below be equipped with the second filter screen in the sleeve, the second filter screen is equipped with first through-hole, first through-hole is equipped with the first one-way baffle of opening downwards, telescopic lateral wall is equipped with the second through-hole, the second through-hole is equipped with the second one-way baffle of outwards opening, be equipped with in pushing away the water piston with the metal piece, the jar is equipped with the magnet outward, the magnet with the metal piece looks mutual attraction, the magnet drive the metal piece is followed jar body up-and-down motion.
Further, the height position of the second through hole is smaller than that of the first through hole by 3-8 cm.
Further, the tank body is provided with a motor, a first deflector rod and a second deflector rod, an output shaft of the motor is provided with the first deflector rod and 2 second deflector rods, the length of the first deflector rod is larger than that of the second deflector rod, the tank body is sleeved with a slip ring, the slip ring is connected with the tank body through a spring, the magnet is fixed on the slip ring, the slip ring is provided with a protruding block, and the first deflector rod and the second deflector rod are used for pushing the protruding block to slide upwards.
Further, the water pushing piston comprises a piston head and a C-shaped ring, the metal block is arranged in the piston head, an annular groove is formed in the side face of the piston head, and the C-shaped ring is arranged in the annular groove.
Further, the C-shaped ring is made of a metal material.
Further, the cell screen is of a conical structure.
Further, the first filter screen is of a conical structure, and the first through holes are formed in the bottom of the cell screen.
Further, the tank body is provided with a cover, and the cover is connected with the tank body through threads.
Further, a clamping groove is formed in the inner wall of the tank body, and the support is clamped in the clamping groove.
The invention has the beneficial effects that: the cell soaking liquid forms an internal circulation in stem cell separation, and no additional injection of new liquid is needed. In the circulation, the liquid passes through the cell screen in an upward flowing direction and a downward flowing direction, the downward flowing promotes the separation of cells, the upward flowing promotes the cells to loosen, the blocking of the cell screen is reduced, and the stem cell separation is facilitated. In the circulation process, the first filter screen and the second filter screen both filter the cell soaking liquid, so that large-particle substances are prevented from returning to the upper part of the cell screen. In the downward reciprocating motion of the water pushing piston, the opening and closing of the first unidirectional baffle and the second unidirectional baffle can be automatically controlled, the operation of loosening cells can be carried out after the stem cells are filtered every two times, liquid flowing upwards each time is filtered, and liquid flowing back to the upper part of the cell screen is filtered. The water pushing piston can promote stem cells to separate when moving downwards, and pushes the cell soaking liquid back to the upper part of the cell screen. When the water pushing piston moves upwards, the cell soaking liquid in the sleeve can be discharged or loosened. The magnet drives the water pushing piston to move up and down outside the tank body, so that the tank body and parts in the tank body can be sterilized at high temperature, and the driving parts are prevented from polluting the environment in the tank body.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a stem cell separation device according to the present invention;
FIG. 2 is a schematic diagram of the motor, first lever and second lever of the present invention;
in the figure, a tank body 1, a sleeve 2, a 3-cell screen mesh, a water pushing piston 4, a bracket 5, a first filter screen 6, a second filter screen 7, a first through hole 8, a first one-way baffle 9, a second through hole 10, a second one-way baffle 11, a metal block 12, a magnet 13, a motor 14, a first deflector rod 15, a second deflector rod 16, a slip ring 17, a spring 18, a C-shaped ring 19, a piston head 20, a ring groove 21, a cover 22, a clamping groove 23 and a lug 24.
Detailed Description
For a better understanding of the technical content of the present invention, specific examples are provided below and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1-2, a stem cell separation device, including a tank body 1, a sleeve 2, a cell screen 3 and a water pushing piston 4, the sleeve 2 both ends are equipped with the opening and fix through support 5 in the tank body 1, the water pushing piston 4 is in the lower part motion of sleeve 2, the upper portion of sleeve 2 is equipped with cell screen 3, sleeve 2 with be equipped with first filter screen 6 between the tank body 1, be equipped with second filter screen 7 in the sleeve 2 of cell screen 3 below, second filter screen 7 is equipped with first through-hole 8, first through-hole 8 is equipped with the first one-way baffle 9 of opening downwards, the lateral wall of sleeve 2 is equipped with second through-hole 10, second through-hole 10 is equipped with the second one-way baffle 11 of opening outwards, be equipped with in the water pushing piston 4 with metal piece 12, the external magnet 13 that is equipped with of tank body 1, magnet 13 with metal piece 12 attracts each other, magnet 13 drive metal piece 12 is followed tank body 1 up-down motion.
The cell sample liquid to be separated is poured into the sleeve 2, a cell screen 3 is arranged at the upper part in the sleeve 2, and the stem cells are separated by the cell screen 3. The upper end and the lower end of the sleeve 2 are provided with openings, the sleeve 2 is arranged in the tank body 1, and cell soaking liquid can flow in from the upper end of the sleeve 2 and flow out from the lower end. The lower part of the sleeve 2 is provided with a water pushing piston 4, and when the water pushing piston 4 moves downwards, the cell soaking liquid is pumped into the sleeve 2. The lateral wall of sleeve 2 is equipped with second through-hole 10, and second through-hole 10 is equipped with the second one-way baffle 11 of outwards opening, and optionally, second one-way baffle 11 has elasticity, and one side and sleeve 2 are connected, cell screen 3 below be equipped with second filter screen 7 in the sleeve 2, second filter screen 7 is equipped with first through-hole 8, first through-hole 8 is equipped with the first one-way baffle 9 of opening downwards, and optionally, first one-way baffle 9 has elasticity, and one side and second filter screen 7 are connected. When the water pushing piston 4 moves downward under the second through hole 10: the second one-way baffle 11 covers the second through hole 10 under the action of water flow, so that the second through hole 10 is sealed, the cell soaking liquid cannot flow into the sleeve 2 from the second through hole 10, meanwhile, the first one-way baffle 9 moves downwards, the first through hole 8 is opened, so that the cell soaking liquid flows from the upper part to the lower part of the sleeve 2, the separation of stem cells by the cell screen 3 is promoted, the cell soaking liquid in the sleeve 2 flows into a gap between the sleeve 2 and the tank 1 from the bottom of the sleeve 2, and overflows upwards through the first filter screen 6 to flow back to the upper part of the sleeve 2, and because the pore diameters of the first filter screen 6 and the second filter screen 7 are smaller than those of the cell screen 3 through the filtering of the first filter screen 6, large-particle substances and cells cannot return to the top of the sleeve 2. When the water pushing piston 4 moves in the lower direction of the second through hole 10, the first one-way baffle 9 moves upward to block the first through hole 8, the first through hole 8 is closed, and the second one-way baffle 11 opens outward, so that the cell soaking liquid flows out of the sleeve 2 from the second through hole 10. When the water pushing piston 4 moves upwards to the second through hole 10 and then continues to move upwards, the second through hole 10 is blocked by the water pushing piston 4 or is positioned below the water pushing piston 4, the first through hole 8 and the second through hole 10 are both closed, the cell soaking liquid is pushed to flow upwards through the second filter screen 7, large particulate matters and cells are blocked by the grids under the filtering effect of the filter screen, the cell soaking liquid flows upwards to impact the cell screen 3, cells above the cell screen 3 are loosened, and the next cell screen 3 is convenient for separating stem cells. When the water pushing piston 4 reaches the top limit position and moves downwards, the first one-way baffle 9 moves downwards to open the first through hole 8 and the cell soaking liquid flows downwards to promote the cell screen 3 to separate cells. Be equipped with in the push away water piston 4 with the metal piece 12, the jar body 1 is equipped with magnet 13 outward, magnet 13 with metal piece 12 inter attraction, magnet 13 drive the metal piece 12 is followed jar body 1 up-and-down motion, magnet 13 locate jar body 1 outside, rethread magnetic field drive push away water piston 4 up-and-down motion, avoid actuating mechanism to contact jar body 1 inside, jar body 1, sleeve 2, push away parts such as water piston 4 all can carry out the high temperature sterilization, ensure that stem cell separation process is not polluted, and the device is clean and disinfection easily. The magnet 13 reciprocates 2 times below the second through hole 10 and then reciprocates 1 time above the second through hole 10.
Preferably, the height position of the second through hole 10 is smaller than the height position of the first through hole 8 by 3-8 cm. The water pushing piston 4 has a certain moving space above the second through hole 10, so that the water pushing is convenient to loosen cells.
Optionally, the motor 14, the first deflector rod 15 and the second deflector rod 16 are arranged outside the tank body 1, one first deflector rod 15 and 2 second deflector rods 16 are arranged on an output shaft of the motor 14, the length of the first deflector rod 15 is greater than that of the second deflector rod 16, the tank body 1 is sleeved with the sliding ring 17, the sliding ring 17 is connected with the tank body 1 through a spring 18, the magnet 13 is fixed on the sliding ring 17, the sliding ring 17 is provided with a protruding block 24, and the first deflector rod 15 and the second deflector rod 16 are used for pushing the protruding block 24 to slide upwards. The first deflector rod 15 and the second deflector rod 16 are perpendicular to the output shaft of the motor 14, and when the motor 14 rotates, the first deflector rod 15 and the second deflector rod 16 rotate, so that the lug 24 is pushed to move upwards, and the slip ring 17 is driven to move upwards. Since the length of the first shift lever 15 is longer than the length of the second shift lever 16, the distance that the first shift lever 15 pushes the slip ring 17 upward is longer than the distance that the second shift lever 16 pushes the slip ring 17 upward, thereby ensuring that the magnet 13 reciprocates 2 times below the second through hole 10 and then reciprocates 1 time above the second through hole 10. The tank body 1 is sleeved with the slip ring 17, the slip ring 17 can move up and down, the magnet 13 moves up and down along with the slip ring 17, the magnet 13 is prevented from deviating, and the components such as the tank body 1 can be sterilized after the magnet 13 is taken down. Preferably, the motor 14 outside the tank 1 is fixed on the base, and the tank 1 is clamped with the base. After the projection 17 loses the pushing force, the slip ring 17 moves downward to return under the pulling force of the spring 18.
Optionally, the water pushing piston 4 includes a piston head 20 and a plurality of C-shaped rings 19, the metal block 12 is disposed in the piston head 20, a ring groove 21 is disposed on a side surface of the piston head 20, and the C-shaped rings 19 are disposed in the ring groove 21. The C-shaped ring 19 is made of elastic materials, and annular openings are staggered, so that the sealing performance of the water pushing piston 4 is improved, and the water pushing capability is provided.
Preferably, the C-ring 19 is made of a metal material. Is made of a magnetizable metal material, is convenient to be close to the sleeve 2 under the action of the magnet 13, and improves the sealing effect.
Specifically, the cell screen 3 has a conical structure. The surface area of the cell screen 3 is increased, and the cell separation effect is improved.
Specifically, the first filter screen 6 has a conical structure, and the first through hole 8 is formed in the bottom of the cell screen 3. The area of the filter screen is increased, and the filtering effect is improved.
Specifically, the can body 1 is provided with a cover 22, and the cover 22 and the can body 1 are connected through threads. The tank 1 is covered by a cover 22 to avoid overflow of the cell soaking liquid during the separation process.
Optionally, a clamping groove 23 is formed in the inner wall of the tank body 1, and the bracket 5 is clamped in the clamping groove 23. The bracket 5 is clamped in the pipe body, and can be detached during cleaning and disinfection, so that the operation is convenient.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides a stem cell separator, its characterized in that, includes a jar body, sleeve, cell screen cloth and pushes away the water piston, the sleeve both ends are equipped with the opening and are in through the support is in the jar is internal, it is in to push away the water piston telescopic lower part motion, telescopic upper portion is equipped with the cell screen cloth, the sleeve with be equipped with first filter screen between the jar body, be equipped with the second filter screen in the sleeve of cell screen cloth below, the aperture of first filter screen and second filter screen is all less than the aperture of cell screen cloth, the second filter screen is equipped with first through-hole, first through-hole is located the below of first filter screen, first through-hole is equipped with the first one-way baffle of opening downwards, the lateral wall of sleeve is equipped with the second through-hole, the second through-hole is located the below of first through-hole, the second through-hole is equipped with the second one-way baffle of outwards opening, be equipped with the metal piece in pushing away the water piston, the jar is external the magnet that is equipped with, the magnet with the metal piece attracts each other, the drive the metal piece is followed the jar body moves down.
2. The stem cell separation apparatus of claim 1, wherein the height of the second through hole is 3-8 cm smaller than the height of the first through hole.
3. The stem cell separation device according to claim 1, wherein a motor, a first deflector rod and a second deflector rod are arranged outside the tank body, one first deflector rod and 2 second deflector rods are arranged on an output shaft of the motor, the length of the first deflector rod is larger than that of the second deflector rod, the tank body is sleeved with a sliding ring, the sliding ring is connected with the tank body through a spring, the magnet is fixed on the sliding ring, the sliding ring is provided with a protruding block, and the first deflector rod and the second deflector rod are used for pushing the protruding block to slide upwards.
4. The stem cell separation device of claim 1, wherein the water-pushing piston comprises a piston head and a C-shaped ring, the metal block is arranged in the piston head, a ring groove is arranged on the side surface of the piston head, and the C-shaped ring is arranged in the ring groove.
5. The stem cell separation device of claim 4, wherein the C-ring is made of a metallic material.
6. The stem cell separation device of claim 1, wherein the cell screen is a cone-shaped structure.
7. The stem cell separation device of claim 1, wherein the first filter screen has a conical structure, and the first through holes are formed in the bottom of the cell screen.
8. The stem cell separation device of claim 1, wherein the canister is provided with a cap, and the cap and the canister are threadably connected.
9. The stem cell separation device according to claim 1, wherein the inner wall of the tank body is provided with a clamping groove, and the bracket is clamped in the clamping groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010351069.4A CN111500419B (en) | 2020-04-28 | 2020-04-28 | Stem cell separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010351069.4A CN111500419B (en) | 2020-04-28 | 2020-04-28 | Stem cell separation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111500419A CN111500419A (en) | 2020-08-07 |
| CN111500419B true CN111500419B (en) | 2023-07-28 |
Family
ID=71873549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010351069.4A Active CN111500419B (en) | 2020-04-28 | 2020-04-28 | Stem cell separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111500419B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112300935A (en) * | 2020-11-05 | 2021-02-02 | 广东康盾生物工程技术有限公司 | Stem cell isolated culture device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS636267A (en) * | 1986-06-23 | 1988-01-12 | Ryoichi Fujita | Piston using magnet |
| CN210269325U (en) * | 2019-08-05 | 2020-04-07 | 青岛顺昌检测评价有限公司 | Gaseous collection system of environmental detection |
| CN212955118U (en) * | 2020-07-02 | 2021-04-13 | 丽水市人民医院 | Collection device of circulating tumor cells in blood |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100485B (en) * | 1985-04-01 | 1988-07-27 | 江丽华 | Scientific magnetic toy magic tray |
| US20020121416A1 (en) * | 2001-02-19 | 2002-09-05 | Yohei Katayama | Hydraulic cylinder apparatus |
| CN201412469Y (en) * | 2009-05-13 | 2010-02-24 | 岳双喜 | Open gas chamber type electro-hydraulic thruster |
| CN101974412B (en) * | 2010-09-30 | 2013-03-13 | 广州大学 | Photosynthetic hydrogen preparation device |
| CN203048934U (en) * | 2012-12-29 | 2013-07-10 | 余启焕 | Filtering and separating device |
| US10520484B2 (en) * | 2016-12-21 | 2019-12-31 | Halliburton Energy Services, Inc. | Aging testing apparatus and use thereof |
| CN208440603U (en) * | 2018-06-06 | 2019-01-29 | 太原师范学院 | A kind of circulating tumor cell automatic separating apparatus |
| CN108991883B (en) * | 2018-08-22 | 2021-11-09 | 江苏那美实业有限公司 | Water cup capable of draining inner wall rapidly |
| CN109187215B (en) * | 2018-09-30 | 2019-10-29 | 中国矿业大学 | A kind of sea area hydrate in-situ preparation and triaxial tests pressure chamber and its application method |
| CN209722154U (en) * | 2019-03-05 | 2019-12-03 | 南京市溧水区人民医院 | A kind of stem cell separator |
| CN209636227U (en) * | 2019-03-05 | 2019-11-15 | 韩晓芳 | A kind of separator of oophoroma circulating tumor cell excretion body |
| CN111040950A (en) * | 2020-01-23 | 2020-04-21 | 中科宝承生物医学科技有限公司 | Stem cell cleaning device and operation method thereof |
-
2020
- 2020-04-28 CN CN202010351069.4A patent/CN111500419B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS636267A (en) * | 1986-06-23 | 1988-01-12 | Ryoichi Fujita | Piston using magnet |
| CN210269325U (en) * | 2019-08-05 | 2020-04-07 | 青岛顺昌检测评价有限公司 | Gaseous collection system of environmental detection |
| CN212955118U (en) * | 2020-07-02 | 2021-04-13 | 丽水市人民医院 | Collection device of circulating tumor cells in blood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111500419A (en) | 2020-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111500419B (en) | Stem cell separation device | |
| CN208415475U (en) | A kind of municipal administration environmental sanitation sewage collection equipment | |
| CN113265996A (en) | Novel river channel garbage device with automatic collection function | |
| CN112777783A (en) | Heat recycling industrial sewage treatment process | |
| CN205850513U (en) | A kind of for rare earth waste torrefaction waste gas retracting device | |
| CN219399175U (en) | Domestic sewage filtering and separating device | |
| CN210736445U (en) | Novel concentrated water recovery treatment equipment | |
| CN115318029A (en) | Miniature dust remover | |
| CN205057672U (en) | Lathe waste liquid treatment device | |
| CN210674492U (en) | Waste material is sewage treatment structure for refuse treatment facility | |
| CN209838846U (en) | Oil return filter capable of avoiding overflowing | |
| CN219908812U (en) | Adjustable pollution control gate valve | |
| CN212104345U (en) | Wash platform for containing vomitus | |
| CN216586159U (en) | Bridge drainage pipe network for municipal maintenance | |
| CN219502075U (en) | Integrated ecological restoration tank | |
| CN220558744U (en) | Efficient metal cleaner filter equipment | |
| CN217399583U (en) | Novel river channel garbage collector with automatic collection function | |
| CN217717042U (en) | Industrial waste water sampling device | |
| CN221206812U (en) | High-recovery concentration tank for chemical drugs | |
| CN221056117U (en) | Water quality analysis sampling device | |
| CN221224386U (en) | Microplastic enrichment device | |
| CN218956168U (en) | Liquid sampling device | |
| CN219345601U (en) | Prevent stifled effectual one-way choke valve | |
| CN221432316U (en) | Membrane cleaning structure and wastewater quality-classifying treatment equipment | |
| CN210545181U (en) | Laboratory organic waste liquid collection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200922 Address after: 511500 the third card shop on the first floor, No. 251, xibailing village, Shiling village committee, Longtang Town, Qingyuan City, Guangdong Province Applicant after: Guangdong kangdun Bioengineering Technology Co.,Ltd. Address before: 571157 building 196, science and technology innovation center, mei'an science and technology new town, Xiuying street, Xiuying District, Haikou City, Hainan Province Applicant before: Haikou health Island Biotechnology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210421 Address after: 2806, foreign trade group building, 239 Zhongxing Road, Chengdong community, Dongmen street, Luohu District, Shenzhen, Guangdong 518000 Applicant after: Guangdong kangdun Innovation Industry Group Co.,Ltd. Address before: 511500 the third card shop on the first floor, No. 251, xibailing village, Shiling village committee, Longtang Town, Qingyuan City, Guangdong Province Applicant before: Guangdong kangdun Bioengineering Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |