CN211652212U - Pipetting device with filter screen for cell separation - Google Patents
Pipetting device with filter screen for cell separation Download PDFInfo
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- CN211652212U CN211652212U CN201922370945.3U CN201922370945U CN211652212U CN 211652212 U CN211652212 U CN 211652212U CN 201922370945 U CN201922370945 U CN 201922370945U CN 211652212 U CN211652212 U CN 211652212U
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Abstract
The utility model relates to the technical field of liquid transfer devices, and provides a liquid transfer device containing a filter screen for cell separation, which comprises a sealing cover, wherein the central position of the sealing cover is hermetically sleeved with a liquid suction barrel; the upper end of the liquid suction cylinder is connected with the liquid suction nozzle, and the lower end of the liquid suction cylinder is connected with the filter bag; the liquid suction nozzle is also connected with a liquid suction switch; the sealing cover is also inserted with an exhaust pipe; the air exhaust pipe is also connected with an air exhaust mechanism; the sealing cover is provided with a sealing ring which is in sealing sleeve connection with the pipette. Therefore, the utility model is hermetically sleeved with the liquid suction cylinder at the central position of the sealing cover; the upper end of the liquid suction cylinder is connected with the liquid suction nozzle, and the lower end of the liquid suction cylinder is connected with the filter bag; the sealing cover is also inserted with an exhaust pipe; the sealing cover is provided with a sealing ring which is in sealing sleeve connection with the pipette. Negative pressure is generated in the pipette through the air suction mechanism, and the liquid enters the pipette after being filtered by the filter bag. Integrate filtering capability to move the liquid in-process, improved sampling efficiency. The pipette can be dismantled with sealed lid, is convenient for realize gathering in proper order of a plurality of samples.
Description
Technical Field
The utility model relates to a move liquid device technical field, especially relate to a contain filter screen liquid-transfering device for cell separation.
Background
With the progress of science and technology, stem cell technology is more and more widely applied.
The stem cells are collected by centrifugal separation, filtered and then sampled and detected. The filtering time is long, so that the problem of low sampling efficiency is caused.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks, the present invention provides a liquid transferring device with a filter screen for cell separation, wherein a liquid sucking tube is hermetically sleeved at the center of a sealing cover; the upper end of the liquid suction cylinder is connected with the liquid suction nozzle, and the lower end of the liquid suction cylinder is connected with the filter bag; the sealing cover is also inserted with an exhaust pipe; the sealing cover is provided with a sealing ring which is in sealing sleeve connection with the pipette. Negative pressure is generated in the pipette through the air suction mechanism, and the liquid enters the pipette after being filtered by the filter bag. Integrate filtering capability to move the liquid in-process, improved sampling efficiency. The pipette can be dismantled with sealed lid, is convenient for realize gathering in proper order of a plurality of samples.
In order to achieve the purpose, the utility model provides a pipetting device containing a filter screen for cell separation, which comprises a sealing cover, wherein the central position of the sealing cover is hermetically sleeved with a pipetting cylinder; the upper end of the liquid suction cylinder is connected with the liquid suction nozzle, and the lower end of the liquid suction cylinder is connected with the filter bag; the liquid suction nozzle is also connected with a liquid suction switch; the sealing cover is also inserted with an exhaust pipe; the air exhaust pipe is also connected with an air exhaust mechanism;
the sealing cover is provided with a sealing ring which is in sealing sleeve connection with the pipette.
According to the utility model discloses a contain filter screen liquid-transfering device for cell separation, a liquid suction section of thick bamboo and pipette are transparent material.
According to the utility model discloses a contain filter screen liquid-transfering device for cell separation, a liquid suction section of thick bamboo and pipette are the glass material.
According to the utility model discloses a contain filter screen pipetting device for cell separation, the mesh number of crossing the filter bag is 200-.
According to the utility model discloses a contain filter screen liquid-transfering device for cell separation, the mechanism of bleeding is the vacuum pump.
According to the utility model discloses a contain filter screen pipetting device for cell separation, the mechanism of bleeding is manual aspiration pump.
According to the utility model discloses a filter screen-containing liquid-transfering device for cell separation, manual air pump includes the exhaust pump, be equipped with the piston in the exhaust pump, the piston is connected with the piston rod, the one end that the piston rod extends to the outside of the section of thick bamboo is connected with the thrust plate, press from both sides between thrust plate and the exhaust pump and establish the spring that cup joints with the piston rod; the air pumping cylinder is also provided with an air outlet and an air suction port; the air suction port is connected with the air suction pipe.
According to the utility model discloses a contain filter screen liquid-transfering device for cell separation, gas vent and induction port all are equipped with one-way valve.
The utility model aims to provide a liquid-transfering device containing a filter screen for cell separation, which is characterized in that a liquid-transfering cylinder is hermetically sleeved at the central position of a sealing cover; the upper end of the liquid suction cylinder is connected with the liquid suction nozzle, and the lower end of the liquid suction cylinder is connected with the filter bag; the sealing cover is also inserted with an exhaust pipe; the sealing cover is provided with a sealing ring which is in sealing sleeve connection with the pipette. Negative pressure is generated in the pipette through the air suction mechanism, and the liquid enters the pipette after being filtered by the filter bag. Integrate filtering capability to move the liquid in-process, improved sampling efficiency. The pipette can be dismantled with sealed lid, is convenient for realize gathering in proper order of a plurality of samples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of the region A in FIG. 1;
FIG. 3 is a schematic structural view of an embodiment of the air pumping mechanism of the present invention;
in the figure, 1-a sealing cover, 11-a liquid suction nozzle, 12-a liquid suction switch, 13-a liquid suction cylinder, 14-a filter bag, 15-an air suction pipe and 16-a sealing ring; 2-pipette, 3-air extractor, 4-air extractor, 41-piston, 42-piston rod, 43-spring, 44-thrust plate, 45-air outlet, 46-air inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the utility model provides a liquid-transfering device with a filter screen for cell separation, which comprises a sealing cover 1, wherein a liquid-transfering cylinder 13 is hermetically sleeved at the center of the sealing cover 1; the upper end of the liquid suction cylinder 13 is connected with the liquid suction nozzle 11, and the lower end of the liquid suction cylinder is connected with the filter bag 14; the liquid suction nozzle 11 is also connected with a liquid suction switch 12; the sealing cover 1 is also inserted with an exhaust tube 15; the air exhaust pipe 15 is also connected with an air exhaust mechanism 3.
With reference to fig. 2, the sealing cap 1 has a sealing ring 16, and the sealing ring 16 is sealed and sleeved on the pipette 2;
for the observation, a imbibition section of thick bamboo 13 and pipette 2 are transparent material, the utility model discloses preferred is transparent plastic or glass material.
When the device is used, one pipette 2 is manually taken, and the nozzle of the pipette 2 is plugged into the sealing ring 16; the suction switch 12 is turned on to start the air suction mechanism 3 to suck liquid, and the liquid level in the liquid suction cylinder 13 is observed manually to judge the suction amount. The suction switch 12 is then closed and the suction mechanism 3 is continued to be activated, creating a negative pressure in the pipette 2, filtering the liquid through the filter bag 14 and into the pipette 2.
The utility model discloses a filter bag 14 adopts filter screen cloth to make up and forms, and filter bag 14's mesh number is 200-.
The pumping mechanism 3 may be a vacuum pump.
The utility model discloses a required negative pressure is not big, and the sample is mostly the detection, and is high to the requirement of flexibility. Therefore, the air exhaust mechanism 3 of the utility model is a manual air exhaust pump.
Referring to fig. 3, as an embodiment, the manual air pump of the present invention includes an air pump cylinder 4, a piston 41 is disposed in the air pump cylinder 4, the piston 41 is connected to a piston rod 42, one end of the piston rod 42 extending to the outside of the cylinder is connected to a thrust plate 44, and a spring 43 sleeved with the piston rod 42 is interposed between the thrust plate 44 and the air pump cylinder 4; the air extracting cylinder 4 is also provided with an air outlet 45 and an air suction port 46; the suction port 46 is connected to the suction pipe 15.
Preferably, the exhaust port 45 and the intake port 46 are provided with one-way valves. The thrust plate 44 is pressed by hand, the piston 41 moves downwards, the one-way valve of the exhaust port 45 is opened to exhaust outwards, and the valve of the air suction port 46 is closed; the spring 43 rebounds, the one-way valve of the exhaust port 45 closes, and the valve of the intake port 46 opens to draw air into the cylinder. Repeated repetition can form negative pressure in the pipette 2.
In summary, the present invention provides a liquid transfer device for cell separation, which comprises a liquid transfer cylinder, wherein the liquid transfer cylinder is hermetically sleeved at the center of a sealing cover; the upper end of the liquid suction cylinder is connected with the liquid suction nozzle, and the lower end of the liquid suction cylinder is connected with the filter bag; the sealing cover is also inserted with an exhaust pipe; the sealing cover is provided with a sealing ring which is in sealing sleeve connection with the pipette. Negative pressure is generated in the pipette through the air suction mechanism, and the liquid enters the pipette after being filtered by the filter bag. Integrate filtering capability to move the liquid in-process, improved sampling efficiency. The pipette can be dismantled with sealed lid, is convenient for realize gathering in proper order of a plurality of samples.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (8)
1. A pipetting device containing a filter screen for cell separation is characterized by comprising a sealing cover, wherein the central position of the sealing cover is hermetically sleeved with a pipetting cylinder; the upper end of the liquid suction cylinder is connected with the liquid suction nozzle, and the lower end of the liquid suction cylinder is connected with the filter bag; the liquid suction nozzle is also connected with a liquid suction switch; the sealing cover is also inserted with an exhaust pipe; the air exhaust pipe is also connected with an air exhaust mechanism;
the sealing cover is provided with a sealing ring which is in sealing sleeve connection with the pipette.
2. The filter screen-containing pipetting device for cell separation of claim 1, wherein the pipette barrel and the pipette are transparent.
3. The screen-containing pipetting device for cell separation according to claim 2, wherein the pipette barrel and the pipette are made of glass.
4. The filter screen-containing pipetting device for cell separation according to claim 1, wherein the filter bag has a mesh size of 200-300 meshes.
5. The filter screen-containing pipetting device for cell separation according to any one of claims 1 to 4, wherein the air suction mechanism is a vacuum pump.
6. The filter screen-containing pipetting device for cell separation according to any one of claims 1 to 4, wherein the air pumping mechanism is a hand-operated air pump.
7. The filter screen-containing pipetting device for cell separation according to claim 6, wherein the manual air pump comprises an air pump cylinder, a piston is arranged in the air pump cylinder and connected with a piston rod, one end of the piston rod, which extends out of the cylinder, is connected with a thrust plate, and a spring sleeved with the piston rod is clamped between the thrust plate and the air pump cylinder; the air pumping cylinder is also provided with an air outlet and an air suction port; the air suction port is connected with the air suction pipe.
8. The screen-containing pipetting device for cell separation according to claim 7, wherein the air outlet and the air inlet are each provided with a one-way air gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370945.3U CN211652212U (en) | 2019-12-26 | 2019-12-26 | Pipetting device with filter screen for cell separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922370945.3U CN211652212U (en) | 2019-12-26 | 2019-12-26 | Pipetting device with filter screen for cell separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211652212U true CN211652212U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922370945.3U Active CN211652212U (en) | 2019-12-26 | 2019-12-26 | Pipetting device with filter screen for cell separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211652212U (en) |
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2019
- 2019-12-26 CN CN201922370945.3U patent/CN211652212U/en active Active
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