CN108410714B

CN108410714B - Cell mixing pipette

Info

Publication number: CN108410714B
Application number: CN201810216044.6A
Authority: CN
Inventors: 苏杰; 韦眀典; 韩涛
Original assignee: Suzhou Yatong Biomedical Technology Co ltd
Current assignee: Suzhou Yatong Biomedical Technology Co.,Ltd.
Priority date: 2018-03-16
Filing date: 2018-03-16
Publication date: 2021-05-04
Anticipated expiration: 2038-03-16
Also published as: CN108410714A

Abstract

The invention relates to the technical field of biology, in particular to a cell blending pipetting gun, which comprises a straw, a motor, a blocking mechanism, a control mechanism, a handle, a compression mechanism, a cylinder, a discharge mechanism, a lifting mechanism, a stirring mechanism, a communication mechanism and a sealing mechanism, wherein the stirring mechanism is arranged on the side wall of the straw; the cylinder body is rotationally connected with the blocking mechanism, and in the process of replacing the nutrient solution, the blocking mechanism filters the cells and keeps the cells at the bottom end of the cylinder body to separate the cells from the waste nutrient solution and prevent the cells from being discharged along with the waste nutrient solution; the bottom end of the stirring mechanism is provided with a sealing mechanism, and in the process of extracting cells, the blocking mechanism seals the stirring mechanism to prevent nutrient solution from entering the stirring mechanism; the bottom of barrel installs hoist mechanism, and inside automatic lifting to the barrel in with the nutrient solution, convenient to use.

Description

Cell mixing pipette

Technical Field

The invention relates to the technical field of biology, in particular to a cell uniformly-mixing pipette.

Background

Cell culture is also called cell cloning technology, and the formal term in biology is cell culture technology. Cell culture is an essential process for both the whole bioengineering technique and one of the biological cloning techniques, and is itself a large-scale cloning of cells. The cell culture technology can be used for culturing a single cell into simple single cells or cells with few differentiation in a large scale, which is an indispensable link of the cloning technology, and the cell culture is the cloning of the cell. A large number of cells or their metabolites are obtained by cell culture. Since biological products are all derived from cells, it can be said that cell culture technology is the most core and basic technology in biotechnology.

In the process of sucking the cells by using the pipetting device, but the cells are settled at the bottom end of the culture medium, the cells are unevenly distributed in the culture medium, so that the cells extracted from the inside of the pipetting device are unevenly distributed, and the cells are inconvenient to observe under a microscope; when the nutrient solution in the culture medium is replaced by the liquid-transferring equipment, the liquid-transferring equipment can suck cells and the nutrient solution into the cylinder together, and a part of the cells are discharged together with the waste nutrient solution, so that waste is caused. In view of this, the invention provides a pipetting device for cell blending, which has the following characteristics:

(1) according to the cell uniformly-mixing pipette, the stirring mechanism is arranged on the side wall of the suction pipe, and before cells are extracted, the stirring mechanism stirs the culture solution to enable the cells to be uniformly distributed in the culture solution, so that the cells in the extracted nutrient solution are uniformly distributed, and observation is facilitated.

(2) According to the cell uniformly-mixing pipette, the barrel is rotatably connected with the blocking mechanism, and in the process of replacing the nutrient solution, the blocking mechanism filters the cells at the bottom end of the barrel to separate the cells from the waste nutrient solution, so that the cells are prevented from being discharged along with the waste nutrient solution, and the waste of the cells is avoided.

(3) According to the cell blending pipetting gun, the sealing mechanism is arranged at the bottom end of the stirring mechanism, and the sealing mechanism seals the stirring mechanism in the cell extraction process, so that nutrient solution is prevented from entering the stirring mechanism, and the stirring mechanism is prevented from being polluted.

(4) According to the cell uniformly-mixing pipetting gun, the lifting mechanism is arranged at the bottom end of the barrel body, so that nutrient solution is automatically lifted into the barrel body, and the use is convenient.

Disclosure of Invention

Aiming at the problems in the prior art, the stirring mechanism is arranged on the side wall of the suction pipe, and before the cells are extracted, the stirring mechanism stirs the culture solution to ensure that the cells are uniformly distributed in the culture solution, so that the cells in the extracted nutrient solution are uniformly distributed, and the observation is convenient. The barrel rotates and is connected the block mechanism, and at the in-process of changing the nutrient solution, the block mechanism is stayed the bottom of barrel with the cell filtration, separates cell and discarded nutrient solution, prevents that the cell from discharging along with discarded nutrient solution together, avoids extravagant cell. The bottom of rabbling mechanism sets up closing mechanism, and at the in-process of drawing the cell, closing mechanism seals the rabbling mechanism, prevents that the nutrient solution from getting into the inside of rabbling mechanism, avoids the rabbling mechanism to receive the pollution. The bottom of barrel installs hoist mechanism, promotes the inside of barrel in the nutrient solution automatically, convenient to use.

The technical scheme adopted by the invention for solving the technical problems is as follows: a cell mixing pipetting gun comprises a pipette, a motor, a blocking mechanism, a control mechanism, a handle, a compression mechanism, a cylinder body, a discharge mechanism, a lifting mechanism, a stirring mechanism, a communication mechanism and a sealing mechanism; the bottom end of the cylinder body is provided with the lifting mechanism, and the side wall of the lifting mechanism is rotatably connected with the motor; the bottom end of the lifting mechanism is provided with the suction pipe, the suction pipe is communicated with the cylinder body through the lifting mechanism, and the top end of the cylinder body is communicated with the exhaust hole; the handle is arranged on the side wall of the barrel, the control mechanism is arranged on the side walls of the handle and the barrel, and the control mechanism is electrically connected with the motor; the blocking mechanism is arranged at the bottom end of the cylinder body, and one side of the blocking mechanism is abutted against the discharging mechanism; the top sliding connection of barrel the compression mechanism, the bottom of compression mechanism sets up the coupling mechanism, the bottom installation of coupling mechanism the rabbling mechanism, the rabbling mechanism intercommunication the straw, just the one end installation of rabbling mechanism the closing mechanism.

Specifically, the blocking mechanism comprises a knob, a connecting sleeve, a connecting rod, a sliding chute and a cell filtering membrane, the connecting sleeve is fixedly connected to the bottom end of the cylinder body, and the connecting sleeve is rotatably connected with the knob; the side wall of the barrel is provided with the sliding groove, and the connecting rod penetrates through the sliding groove; and the both ends of connecting rod distribute fixed connection the knob with cell filtration membrane, cell filtration membrane block the barrel, just cell filtration membrane's diameter equals the internal diameter of barrel rotates the knob makes cell filtration membrane is in the rotation of barrel, when changing nutrient solution, cell filtration membrane block the inside of barrel is stayed the cell the bottom of barrel avoids the cell to inhale the inside of barrel.

Specifically, the lifting mechanism comprises a first gear, a fixed box, a water outlet, a second gear and a water inlet, two ends of the fixed box are respectively and fixedly connected with the suction pipe and the cylinder body, the water inlet is arranged at the bottom end of the fixed box, the water inlet is communicated with the suction pipe, and the water outlet is communicated with the cylinder body; the inner part of the fixed box is rotatably connected with the first gear and the second gear, and the first gear is meshed with the second gear; the first gear and the second gear are rotationally connected with the motor, and the rotation directions of the first gear and the second gear are opposite; the fixing box is positioned right below the cell filtering membrane, and the first gear and the second gear rotate oppositely to generate negative pressure inside the fixing box so as to suck nutrient solution and cells into the cylinder.

Specifically, the control mechanism comprises a battery and a switch, the battery is mounted on the side wall of the barrel, and the battery is electrically connected with the switch and the motor; the switch is connected with the handle in a sliding mode, the switch is electrically connected with the motor, the motor is rotated by turning on the switch conveniently, and therefore the first gear and the second gear are rotated.

Specifically, the compression mechanism comprises a fixed rod, a through hole, a first baffle, a groove, a fixed sleeve, a first spring, a fixed disk and a second baffle, the top end of the cylinder is connected with the fixed rod in a sliding manner, and the top surface of the cylinder is provided with the through hole; the side wall of the fixed rod is fixedly connected with the fixed sleeve, the top end of the cylinder is fixedly connected with the fixed disk, and the first spring is arranged between the fixed disk and the fixed sleeve; the fixed rod is connected with the fixed disk in a sliding mode, the bottom end of the fixed rod is fixedly connected with the first baffle, and the top surface of the first baffle is provided with the groove; the inner side wall of the barrel is rotatably connected with the second baffle, the second baffle is clamped with the groove, so that the fixed rod is pressed down to drive the first baffle to descend conveniently, the first baffle compresses gas downwards, the gas drives the second baffle to rotate upwards to be clamped with the groove, the top end of the barrel is closed, and the gas is continuously compressed downwards at the top end of the barrel; meanwhile, the first spring is compressed between the fixed disc and the fixed sleeve, so that the fixed rod is convenient to reset.

Specifically, the communicating mechanism comprises the funnel and a communicating pipe, the funnel is fixedly connected inside the barrel, and the funnel is positioned below the second baffle; the bottom of funnel is installed communicating pipe, the bottom of communicating pipe with the vertical distance between the knob is greater than the radius of cell filtration membrane, for the convenience with the gas that first baffle with the second baffle compresses down passes through the funnel is pressed into in communicating pipe, increases gaseous speed of moving.

Specifically, rabbling mechanism includes filter screen, trachea and draw-in groove, the lateral wall of barrel is equipped with the draw-in groove, the draw-in groove block the trachea, the trachea intercommunication communicating pipe, tracheal bottom intercommunication the straw, just the bottom lateral wall of straw is equipped with the filter screen, the gas of the inside high-speed motion of communicating pipe passes through the trachea gets into the inside of straw, through the straw with the filter screen blows to the inside of culture medium, stirs the culture medium, makes the inside cell evenly distributed of culture medium.

Specifically, the closing mechanism comprises a second spring and a third baffle plate, the bottom end of the air pipe is rotatably connected with the third baffle plate, and the third baffle plate is connected with the air pipe through the second spring; the third baffle plate with the T-shaped side wall is clamped with the air pipe, the maximum diameter of the third baffle plate is equal to the inner diameter of the suction pipe, and when the air pipe does not blow air, the third baffle plate is clamped with the air pipe to seal the air pipe, so that nutrient solution is prevented from entering the interior of the air pipe; and when the air pipe blows outwards, the third baffle is blown up to be clamped with the inside of the suction pipe, the top end of the suction pipe is sealed, and air is blown out from the ground mat of the suction pipe.

Specifically, the discharging mechanism comprises a water discharging pipe and a water valve, the cylinder is communicated with the water discharging pipe, and the water valve is mounted on the side wall of the water discharging pipe; the bottom of drain pipe with the center of adapter sleeve is located same straight line, just the drain pipe with cell filtration membrane staggers and distributes, in order to make things convenient for with waste nutrient solution discharges on the cell filtration membrane, leaves the cell the bottom of barrel.

Specifically, the lateral wall of barrel is equipped with observation mechanism, observation mechanism includes observation window and scale mark, the lateral wall of barrel is equipped with the observation window, one side of observation pipe is equipped with the scale mark is inhaled for the convenient observation the quantity of the inside nutrient solution of barrel.

The invention has the beneficial effects that:

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a preferred embodiment of the pipetting apparatus for cell blending according to the present invention;

FIG. 2 is a schematic view showing the internal structure of the cartridge shown in FIG. 1;

FIG. 3 is a schematic view of the lifting mechanism shown in FIG. 1;

FIG. 4 is a schematic view of the internal structure of the compression mechanism shown in FIG. 1;

fig. 5 is a schematic view of the internal structure of the closure mechanism of the present invention.

In the figure: 1. a straw, 2, a motor, 3, a blocking mechanism, 31, a knob, 32, a connecting sleeve, 33, a connecting rod, 34, a sliding chute, 35, a cell filtering membrane, 4, a control mechanism, 41, a battery, 42, a switch, 5, a handle, 6, a compression mechanism, 61, a fixing rod, 62, a through hole, 63, a first baffle, 64, a groove, 65, a fixing sleeve, 66, a first spring, 67, a fixing disk, 68, a second baffle, 7, a cylinder, 8, an observation mechanism, 81, an observation window, 82, a scale mark, 9, a discharging mechanism, 91, a drain pipe, 92, a water valve, 10, a lifting mechanism, 101, a first gear, 102, a fixing box, 103, a water outlet, 104, a second gear, 105, a water inlet, 11, a stirring mechanism, 111, a filter screen, 112, an air pipe, 113, a clamping groove, 12, a communication mechanism, 123, a lifting mechanism, a funnel, a communicating pipe, 13, a sealing mechanism, a sealing, 132. third baffle, 14, exhaust hole.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1, the cell blending pipetting gun of the present invention comprises a pipette 1, a motor 2, a blocking mechanism 3, a control mechanism 4, a handle 5, a compressing mechanism 6, a cylinder 7, a discharging mechanism 9, a lifting mechanism 10, a stirring mechanism 11, a communicating mechanism 12 and a sealing mechanism 13; the lifting mechanism 10 is installed at the bottom end of the barrel 7, and the side wall of the lifting mechanism 10 is rotatably connected with the motor 2; the bottom end of the lifting mechanism 10 is provided with the straw 1, the straw 1 is communicated with the cylinder body 7 through the lifting mechanism 10, and the top end of the cylinder body 7 is communicated with the exhaust hole 14; the handle 5 is installed on the side wall of the barrel 7, the control mechanism 4 is installed on the side walls of the handle 5 and the barrel 7, and the control mechanism 4 is electrically connected with the motor 2; the blocking mechanism 3 is arranged at the bottom end of the cylinder 7, and one side of the blocking mechanism 3 abuts against the discharging mechanism 9; the top sliding connection of barrel 7 compressing mechanism 6, compressing mechanism 6's bottom sets up communicating mechanism 12, the bottom installation of communicating mechanism 12 rabbling mechanism 11, rabbling mechanism 11 intercommunication straw 1, just the one end installation of rabbling mechanism 11 closing mechanism 13.

Specifically, as shown in fig. 1 and 2, the blocking mechanism 3 of the pipette gun for uniformly mixing cells comprises a knob 31, a connecting sleeve 32, a connecting rod 33, a chute 34 and a cell filtering membrane 35, wherein the connecting sleeve 32 is fixedly connected to the bottom end of the cylinder 7, and the connecting sleeve 32 is rotatably connected to the knob 31; the side wall of the cylinder 7 is provided with the sliding groove 34, and the connecting rod 33 penetrates through the sliding groove 34; and the both ends of connecting rod 33 distribute fixed connection knob 31 with cell filtration membrane 35, cell filtration membrane 35 block barrel 7, and cell filtration membrane 35's diameter equals the internal diameter of barrel 7, rotates knob 31, makes cell filtration membrane 35 is in the rotation of barrel 7, when changing nutrient solution, cell filtration membrane 35 block the inside of barrel 7, remains the cell in the bottom of barrel 7, avoids the cell to inhale the inside of barrel 7.

Specifically, as shown in fig. 3, the lifting mechanism 10 of the pipette tip for uniformly mixing cells comprises a first gear 101, a fixed box 102, a water outlet 103, a second gear 104 and a water inlet 105, wherein two ends of the fixed box 102 are respectively and fixedly connected with the pipette tip 1 and the barrel 7, the water inlet 105 is arranged at the bottom end of the fixed box 102, the water inlet 105 is communicated with the pipette tip 1, and the water outlet 103 is communicated with the barrel 7; the inner part of the fixed box 102 is rotatably connected with the first gear 101 and the second gear 104, and the first gear 101 is meshed with the second gear 104; the first gear 101 and the second gear 104 are rotationally connected with the motor 2, and the rotation directions of the first gear 101 and the second gear 104 are opposite; the fixing case 102 is positioned just below the cell filtration membrane 35, and the first gear 101 and the second gear 104 rotate in opposite directions, so that negative pressure is generated inside the fixing case 102, and the nutrient solution and the cells are sucked into the cylinder 7.

Specifically, as shown in fig. 1, the control mechanism 4 of the pipette gun for uniformly mixing cells of the present invention includes a battery 41 and a switch 42, the battery 41 is installed on the side wall of the barrel 7, and the battery 41 is electrically connected to the switch 42 and the motor 2; the switch 42 is slidably connected to the handle 5, and the switch 42 is electrically connected to the motor 2, so as to turn on the switch 42 to rotate the motor 2, thereby rotating the first gear 101 and the second gear 104.

Specifically, as shown in fig. 2 and 4, the compressing mechanism 6 of the cell blending pipette according to the present invention includes a fixing rod 61, a through hole 62, a first baffle 63, a groove 64, a fixing sleeve 65, a first spring 66, a fixing disk 67, and a second baffle 68, the top end of the cylinder 7 is slidably connected to the fixing rod 61, and the top surface of the cylinder 7 is provided with the through hole 62; the side wall of the fixing rod 61 is fixedly connected with the fixing sleeve 65, the top end of the cylinder 7 is fixedly connected with the fixing disc 67, and the first spring 66 is arranged between the fixing disc 67 and the fixing sleeve 65; the fixed rod 61 is slidably connected with the fixed disc 67, the bottom end of the fixed rod 61 is fixedly connected with the first baffle 63, and the top surface of the first baffle 63 is provided with the groove 64; the inner side wall of the cylinder 7 is rotatably connected with the second baffle 68, the second baffle 68 is clamped with the groove 64, so that the fixing rod 61 is pressed down to drive the first baffle 63 to descend, the first baffle 63 compresses gas downwards, the gas generates a negative acting force to drive the second baffle 68 to rotate upwards to be clamped with the groove 64, the top end of the cylinder 7 is closed, and the gas is continuously compressed downwards at the top end of the cylinder 7; meanwhile, the first spring 66 is compressed between the fixed disk 67 and the fixed sleeve 65, so that the fixed rod 61 is convenient to reset.

Specifically, as shown in fig. 2, in the cell blending pipette according to the present invention, the communicating mechanism 12 includes the funnel 123 and the communicating pipe 121, the funnel 123 is fixedly connected to the inside of the cylinder 7, and the funnel 123 is located below the second baffle 68; the communication pipe 121 is installed at the bottom end of the funnel 123, and the vertical distance between the bottom end of the communication pipe 121 and the knob 31 is greater than the radius of the cell filtration membrane 35, so that the gas compressed downward by the first baffle 63 and the second baffle 68 is pressed into the communication pipe 121 through the funnel 123, and the movement speed of the gas is increased.

Specifically, as shown in fig. 1 and 2, the stirring mechanism 11 of the cell blending pipette according to the present invention includes a filter screen 111, an air tube 112 and a clamping groove 113, the clamping groove 113 is disposed on the side wall of the barrel 7, the clamping groove 113 is clamped with the air tube 112, the air tube 112 is communicated with the communicating tube 121, the bottom end of the air tube 112 is communicated with the suction tube 1, the filter screen 111 is disposed on the side wall of the bottom end of the suction tube 1, the gas moving at a high speed in the communicating tube 121 enters the interior of the suction tube 1 through the air tube 112, and is blown to the interior of the culture medium through the suction tube 1 and the filter screen 111 to stir the culture medium, so that cells in the culture medium are uniformly distributed.

Specifically, as shown in fig. 1 and 5, the closing mechanism 13 of the pipette gun for uniformly mixing cells of the present invention includes a second spring 131 and a third baffle 132, the bottom end of the air tube 112 is rotatably connected to the third baffle 132, and the third baffle 132 is connected to the air tube 112 through the second spring 131; the third baffle 132 with a T-shaped side wall is clamped with the air tube 112, and the maximum diameter of the third baffle 132 is equal to the inner diameter of the straw 1, so that when the air tube 112 does not blow air, the third baffle 132 is clamped with the air tube 112 to seal the air tube 112, and the nutrient solution is prevented from entering the air tube 112; when the air pipe 11 blows out, the third baffle 132 blows up to be engaged with the inside of the straw 1, the top end of the straw 1 is closed, and air is blown out from the floor mat of the straw 1.

Specifically, as shown in fig. 1 and 2, the discharging mechanism 9 of the cell blending pipette according to the present invention includes a water discharging pipe 91 and a water valve 92, the cylinder 7 is communicated with the water discharging pipe 91, and the water valve 92 is installed on a side wall of the water discharging pipe 91; the bottom end of the drainage pipe 91 and the center of the connecting sleeve 32 are located on the same straight line, the drainage pipe 91 and the cell filtering membrane 35 are distributed in a staggered mode, and cells are left at the bottom end of the barrel 7 in order to discharge waste nutrient solution on the cell filtering membrane 35.

Specifically, as shown in fig. 1, according to the cell mixing pipette, the observation mechanism 8 is arranged on the side wall of the cylinder 7, the observation mechanism 8 comprises an observation window 81 and scale marks 82, the observation window 81 is arranged on the side wall of the cylinder 7, the scale marks 82 are arranged on one side of the observation tube 81, and therefore the number of nutrient solutions sucked into the cylinder 7 can be conveniently observed.

The knob 31 is rotated to rotate the knob 31 by 90 degrees, the knob 31 is connected with the cell filtering membrane 35 through the connecting rod 33, the cell filtering membrane 35 rotates by 90 degrees at the bottom end inside the cylinder 7, and the cylinder 7 is opened.

(1) Holding the cylinder 7, pressing a finger against the switch 42 at the bottom end of the handle 5, putting the straw 1 into the culture medium through the side wall, rotating the straw 1 in the culture medium, pressing the fixing rod 61 downwards, driving the first baffle 63 and the fixing sleeve 65 to descend at the top end of the cylinder 7 by the fixing rod 61, descending the fixing sleeve 65, and compressing the first spring 66 between the fixing sleeve 65 and the fixing disc 67; the first baffle 63 descends to compress air in the cylinder 7 downwards, the air generates a reaction force to enable the second baffle 68 in the cylinder 7 to rotate 90 degrees upwards, the second baffle 68 is clamped with the groove 64 in the side wall of the first baffle 63 to seal the first baffle 63 and continue to compress the air upwards, the compressed air enters the inside of the communicating pipe 121 through the funnel 123 at an accelerated speed, the communicating pipe 121 is connected with the air pipe 112, the accelerated air enters the inside of the air pipe 112, the third baffle 132 at one end of the air pipe 112 is blown up, the second spring 131 is pulled out, the third baffle 132 rotates 90 degrees to be clamped with the top end of the suction pipe 1, the air is blown into the culture medium through the suction pipe 1 and the filter screen 111, and cells in the culture medium are uniformly distributed; the fixing rod 61 is loosened, the air pipe 112 stops blowing, the second spring 131 contracts to enable the third baffle plate 132 to reset and clamp the air pipe 1 to seal the air pipe 1, the second baffle plate 68 rotates downwards to be separated from the groove 64, the top end of the barrel body 7 is provided with the through hole 62 to enable the bottom end of the first baffle plate 63 to be communicated with air, and the first spring 66 extends to drive the fixing rod 61 and the first baffle plate 63 to reset.

(2) Upwards press switch 42, make battery 41 and motor 2 switch-on, motor 2 rotates, make first gear 101 and second gear 104 rotate, first gear 101 and second gear 104 rotate the opposite direction and produce the negative pressure, fixed 102 communicates with the external world through exhaust hole 14, thereby take into the inside of fixed case 102 through water inlet 105 with the inside nutrient solution of straw 1, the nutrient solution upwards transports through the both sides of first gear 101 and second gear 104, rethread delivery port 103 gets into the inside of barrel 7, look over the volume of the inside nutrient solution of barrel 7 through watching observation window 81 and scale mark 82, after inhaling proper amount of nutrient solution, take out straw 1 from the inside of culture medium. When the nutrient solution needs to be put down, the switch 42 is released, the battery 41 is disconnected from the motor 2, the first gear 101 and the second gear 104 stop rotating, and the nutrient solution flows out from the interior of the cylinder 7 through the straw 1 under the action of gravity.

(3) When the nutrient solution needs to be replaced, the knob 31 is rotated by 90 degrees, the cell filtering membrane 35 is rotated by 90 degrees at the bottom end in the cylinder 7, the cell filtering membrane is clamped with the cylinder 7, the straw 1 is placed in the culture medium to open the switch 42, the first gear 101 and the second gear 104 rotate to draw the nutrient solution into the cylinder 7, the cells are filtered by the cell filtering membrane 35 and are left at the bottom end of the cylinder 7, the nutrient solution penetrates through the cell filtering membrane 35 to enter the cylinder 7, when enough nutrient solution is sucked, the straw 1 is taken out from the interior of the culture medium, the valve 92 is opened, and the waste liquid on the upper layer of the cylinder 7 is drained to the inside of the waste material pool through the drain pipe 91; the waste liquid is drained, the valve 92 is closed, the straw 1 is placed above the culture medium again, the switch 42 is closed, and the nutrient solution and the cells at the bottom end of the cylinder 7 are placed inside the culture medium again.

According to the cell uniformly-mixing pipette, the stirring mechanism 11 is arranged on the side wall of the suction pipe 1, and before cell extraction, the stirring mechanism 11 stirs the culture solution to enable cells to be uniformly distributed in the culture solution, so that the cells in the extracted nutrient solution are uniformly distributed, and observation is facilitated. Barrel 7 rotates and connects blocking mechanism 3, and at the in-process of changing the nutrient solution, blocking mechanism 3 stays the bottom of barrel 7 with the cell filtration, with cell and the separation of discarded nutrient solution, prevents that the cell from discharging along with discarded nutrient solution together, avoids extravagant cell. The bottom of rabbling mechanism 11 sets up closing mechanism 13, and at the in-process of drawing the cell, closing mechanism 13 seals the rabbling mechanism 13, prevents that the nutrient solution from getting into the inside of rabbling mechanism 11, avoids rabbling mechanism 11 to receive the pollution. The bottom end of the cylinder body 7 is provided with a lifting mechanism 10, so that the nutrient solution is automatically lifted to the inside of the cylinder body 7, and the use is convenient.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a cell mixing pipette which characterized in that: comprises a suction pipe (1), a motor (2), a blocking mechanism (3), a control mechanism (4), a handle (5), a compression mechanism (6), a cylinder body (7), a discharge mechanism (9), a lifting mechanism (10), a stirring mechanism (11), a communication mechanism (12) and a sealing mechanism (13); the bottom end of the barrel body (7) is provided with the lifting mechanism (10), and the side wall of the lifting mechanism (10) is rotatably connected with the motor (2); the bottom end of the lifting mechanism (10) is provided with the straw (1), the straw (1) is communicated with the cylinder body (7) through the lifting mechanism (10), and the top end of the cylinder body (7) is communicated with the exhaust hole (14); the handle (5) is installed on the side wall of the barrel body (7), the control mechanism (4) is installed on the side walls of the handle (5) and the barrel body (7), and the control mechanism (4) is electrically connected with the motor (2); the blocking mechanism (3) is arranged at the bottom end of the cylinder body (7), and one side of the blocking mechanism (3) is abutted against the discharging mechanism (9); the top sliding connection of barrel (7) compressing mechanism (6), the bottom of compressing mechanism (6) sets up communicating mechanism (12), the bottom installation of communicating mechanism (12) rabbling mechanism (11), rabbling mechanism (11) intercommunication straw (1), just the one end installation of rabbling mechanism (11) closing mechanism (13).

2. The cell mixing pipette according to claim 1, wherein: the blocking mechanism (3) comprises a knob (31), a connecting sleeve (32), a connecting rod (33), a sliding chute (34) and a cell filtering membrane (35), the bottom end of the cylinder body (7) is fixedly connected with the connecting sleeve (32), and the connecting sleeve (32) is rotatably connected with the knob (31); the side wall of the barrel body (7) is provided with the sliding groove (34), and the connecting rod (33) penetrates through the sliding groove (34); and the two ends of the connecting rod (33) are fixedly connected with the knob (31) and the cell filtering membrane (35) in a distributed manner, the cell filtering membrane (35) is clamped with the cylinder body (7), and the diameter of the cell filtering membrane (35) is equal to the inner diameter of the cylinder body (7).

3. The cell mixing pipette according to claim 2, wherein: the lifting mechanism (10) comprises a first gear (101), a fixed box (102), a water outlet (103), a second gear (104) and a water inlet (105), two ends of the fixed box (102) are fixedly connected with the suction pipe (1) and the barrel body (7) respectively, the water inlet (105) is formed in the bottom end of the fixed box (102), the water inlet (105) is communicated with the suction pipe (1), and the water outlet (103) is communicated with the barrel body (7); the inner part of the fixed box (102) is rotatably connected with the first gear (101) and the second gear (104), and the first gear (101) is meshed with the second gear (104); the first gear (101) and the second gear (104) are rotationally connected with the motor (2), and the rotation directions of the first gear (101) and the second gear (104) are opposite; the fixing box (102) is located right below the cell filtration membrane (35).

4. The cell mixing pipette according to claim 1, wherein: the control mechanism (4) comprises a battery (41) and a switch (42), the battery (41) is installed on the side wall of the barrel (7), and the battery (41) is electrically connected with the switch (42) and the motor (2); the switch (42) is connected with the handle (5) in a sliding mode, and the switch (42) is electrically connected with the motor (2).

5. The cell mixing pipette according to claim 1, wherein: the compression mechanism (6) comprises a fixing rod (61), a through hole (62), a first baffle (63), a groove (64), a fixing sleeve (65), a first spring (66), a fixing disc (67) and a second baffle (68), the top end of the cylinder (7) is connected with the fixing rod (61) in a sliding mode, and the through hole (62) is formed in the top surface of the cylinder (7); the side wall of the fixing rod (61) is fixedly connected with the fixing sleeve (65), the top end of the cylinder (7) is internally and fixedly connected with the fixing disc (67), and the first spring (66) is arranged between the fixing disc (67) and the fixing sleeve (65); the fixed rod (61) is connected with the fixed disc (67) in a sliding mode, the bottom end of the fixed rod (61) is fixedly connected with the first baffle (63), and the top surface of the first baffle (63) is provided with the groove (64); the inner side wall of the barrel (7) is rotatably connected with the second baffle (68), and the second baffle (68) is clamped with the groove (64).

6. The cell mixing pipette according to claim 5, wherein: the communication mechanism (12) comprises the funnel (123) and a communication pipe (121), the funnel (123) is fixedly connected to the inside of the barrel (7), and the funnel (123) is located below the second baffle (68); the bottom end of the funnel (123) is provided with the communication pipe (121), and the vertical distance between the bottom end of the communication pipe (121) and the knob (31) is larger than the radius of the cell filtering membrane (35).

7. The cell mixing pipette according to claim 6, wherein: rabbling mechanism (11) are including filter screen (111), trachea (112) and draw-in groove (113), the lateral wall of barrel (7) is equipped with draw-in groove (113), draw-in groove (113) block trachea (112), trachea (112) intercommunication communicating pipe (121), the bottom intercommunication of trachea (112) straw (1), just the bottom lateral wall of straw (1) is equipped with filter screen (111).

8. The cell mixing pipette according to claim 7, wherein: the closing mechanism (13) comprises a second spring (131) and a third baffle plate (132), the bottom end of the air pipe (112) is rotatably connected with the third baffle plate (132), and the third baffle plate (132) is connected with the air pipe (112) through the second spring (131); the third baffle (132) with the T-shaped side wall is clamped with the air pipe (112), and the maximum diameter of the third baffle (132) is equal to the inner diameter of the suction pipe (1).

9. The cell mixing pipette according to claim 2, wherein: the discharging mechanism (9) comprises a water discharging pipe (91) and a water valve (92), the cylinder body (7) is communicated with the water discharging pipe (91), and the water valve (92) is installed on the side wall of the water discharging pipe (91); the bottom of drain pipe (91) with the center of adapter sleeve (32) is located same straight line, just drain pipe (91) with cell filtration membrane (35) staggers the distribution.

10. The cell mixing pipette according to claim 1, wherein: the lateral wall of barrel (7) is equipped with observation mechanism (8), observation mechanism (8) are including observation window (81) and scale mark (82), the lateral wall of barrel (7) is equipped with observation window (81), one side of observation pipe (81) is equipped with scale mark (82).