CN215823103U - Pipette tip for preventing cross contamination of cells - Google Patents
Pipette tip for preventing cross contamination of cells Download PDFInfo
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- CN215823103U CN215823103U CN202121343884.2U CN202121343884U CN215823103U CN 215823103 U CN215823103 U CN 215823103U CN 202121343884 U CN202121343884 U CN 202121343884U CN 215823103 U CN215823103 U CN 215823103U
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- head
- liquid
- transfering gun
- pipette tip
- gun head
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Abstract
A liquid-transfering gun head for preventing cross contamination of cells relates to the technical field of cell culture, and comprises a liquid-transfering gun head, a limiting block and a liquid-dropping device, wherein the limiting block is arranged on the liquid-transfering gun head; the pipette tip has a reasonable and practical structure, is suitable for various test tubes, does not need to touch the test tubes when the pipette tip adds test solution into the test tubes, prevents the dropper from cross contamination, and improves the accuracy of the experiment.
Description
Technical Field
The utility model belongs to the technical field of cell culture, and particularly relates to a pipette tip for preventing cross contamination of cells.
Background
Pipette tips are an essential tool for cell culture. In the prior art, when various cell culture operations are carried out, instruments used are strictly distinguished, preferably marked for convenient identification, the operations are carried out in sequence, only one cell is processed at one time, and various operations of various cells are easy to be disordered when carried out together. When the test solution is dripped or the passage operation is carried out, the pipette tip inevitably touches the test tube and sticks cells, thereby causing the cross contamination of the cells. In addition, the test solutions added dropwise during the culture of different cells are different and need to be added quantitatively sometimes, so that the dosage of the added test solution is not easy to control, and the difficulty of the experiment is increased.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the background art, the utility model discloses a liquid transfer gun head for preventing cross contamination of cells.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides a prevent cell cross contamination's liquid-transfering gun head, includes liquid-transfering gun head, stopper and dropping liquid device: the liquid transfer gun head is provided with a limiting block, a liquid dropping device is arranged in the liquid transfer gun head and consists of a rubber head dropper and an extrusion device, the extrusion device is arranged on the liquid dropping device, and the extrusion device is connected with the liquid transfer gun head.
The inside hollow structure that is of pipette head is equipped with the rubber head drip tube in the pipette head, and the one end of pipette head is circular cone structure, and the other end of pipette head is cylinder or prism column structure, and the pipette head all is equipped with the second round hole on the both sides of the outer wall of cylindrical one end, and the second round hole is at least one, and the orderly range of second round hole is equipped with the extrusion device in the second round hole on the pipette head on the outer wall of pipette head, and the pipette head is equipped with the stopper on the outer wall of the cylindrical other end.
The liquid transferring gun is characterized in that a first round hole is formed in the middle of one end of the limiting block, the limiting block is sleeved on the liquid transferring gun head through the first round hole, a fourth groove is formed in the other end of the limiting block, a third groove is formed in the bottom of the fourth groove, a second groove is formed in the bottom of the third groove, a first groove is formed in the bottom of the second groove, and the bottom of the first groove is connected with the first round hole in the limiting block.
The rubber head dropper is arranged inside the liquid-transfering gun head and comprises a connecting pipe, a first rubber head, a second rubber head and a third rubber head, wherein the first rubber head is arranged on the connecting pipe, the second rubber head is arranged on the first rubber head, and the third rubber head is arranged on the second rubber head.
The one end of connecting pipe is connected with the one end of liquid-transfering gun head, be equipped with the first head of gluing on the other end of connecting pipe, the one end of the first head of gluing is connected with the connecting pipe, it glues the head to be equipped with the second on the first other end of gluing, the one end of the first head of gluing is connected with the first head of gluing of second, the head is glued to be equipped with the third on the second, the one end of the first head of gluing of third is glued with the second and is connected, be equipped with the connecting pipe on the other end of the first head of gluing of third, the one end of connecting pipe is glued the head with the third and is connected, the other end of connecting pipe is connected with the other end of liquid-transfering gun head.
The first glue head, the second glue head and the third glue head are made of soft materials and are made of springback materials, the first glue head, the second glue head and the third glue head are of an integrated structure, the second glue head is larger than the first glue head, the third glue head is larger than the second glue head, and the positions of the first glue head, the second glue head and the third glue head correspond to the position of a second round hole in the outer wall of the liquid-transfer gun head respectively.
The extruding device is composed of a first fixing block, a spring, a fixing rod and a second fixing block, wherein the fixing rod is arranged on the first fixing block, the spring and the second fixing block are arranged on the fixing rod, the fixing rod is connected with the liquid-transfer gun head, and the fixing rod is arranged in a second round hole in the liquid-transfer gun head.
The first fixing block is of an arc-shaped structure and is arranged inside the pipette head, the inner wall of the first fixing block corresponds to the position of the rubber head on the rubber head dropper, and the fixing rod is arranged in the middle of the outer wall of the first fixing block.
One end of the fixing rod is connected with the first fixing block, an external thread is arranged on the outer wall of the other end of the fixing rod, one end of the fixing rod provided with the external thread penetrates through a second round hole in the pipette head, the fixing rod penetrates through the outer portion of the pipette head and is sleeved with a spring, one end of the fixing rod provided with the external thread is provided with a second fixing block, a threaded hole is formed in the second fixing block, and the threaded hole in the second fixing block is matched with the external thread in the outer wall of the fixing rod.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the utility model discloses a pipette tip for preventing cross contamination of cells, which achieves the purpose of preventing cross contamination of the pipette tip by arranging a limiting block on the pipette tip, arranging a liquid dropping device in the pipette tip and arranging an extruding device on the liquid dropping device.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the dropping device of the present invention;
FIG. 3 is a schematic view of the stopper structure of the present invention;
FIG. 4 is a schematic view of a rubber dropper structure according to the present invention;
FIG. 5 is a schematic view of a pipette tip according to the present invention;
FIG. 6 is a schematic view of the extrusion apparatus of the present invention;
1. a pipette tip; 2. a limiting block; 3. a liquid dropping device; 4. an extrusion device; 5. a first circular hole; 6. a first groove; 7. a second groove; 8. a third groove; 9. a fourth groove; 10. a first glue head; 11. a connecting pipe; 12. a second glue head; 13. a third rubber head; 14. a rubber head dropper; 15. a second circular hole; 16. a first fixed block; 17. a spring; 18. a second fixed block; 19. a threaded hole; 20. an external thread; 21. and (5) fixing the rod.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
Combine attached 1~4, a prevent cell cross contamination liquid-transfering gun head, including liquid-transfering gun head 1, stopper 2 and dropping liquid device 3, be equipped with stopper 2 on the liquid-transfering gun head 1, be equipped with dropping liquid device 3 in the liquid-transfering gun head 1, dropping liquid device 3 comprises rubber head burette 14 and extrusion device 4, is equipped with extrusion device 4 on the dropping liquid device 3, and extrusion device 4 is connected with liquid-transfering gun head 1.
The inside hollow structure that is of pipette tip 1 is equipped with rubber head drip tube 14 in the pipette tip 1, the one end of pipette tip 1 is circular cone column structure, the other end of pipette tip 1 is cylinder or prism column structure, pipette tip 1 all is equipped with second round hole 15 on the both sides of the outer wall of cylindrical one end, 15 at least one of second round holes, the orderly range of second round hole 15 is on the outer wall of pipette tip 1, be equipped with extrusion device 4 in the second round hole 15 on pipette tip 1, pipette tip 1 is equipped with stopper 2 on the outer wall of the cylindrical other end.
Be equipped with first round hole 5 on the 2 one end intermediate positions of stopper, stopper 2 overlaps on liquid-transfering gun head 1 through first round hole 5, and the inside fourth recess 9 that is equipped with of the other end of stopper 2 is equipped with third recess 8 on the bottom of fourth recess 9, is equipped with second recess 7 on the bottom of third recess 8, is equipped with first recess 6 on the bottom of second recess 7, and the bottom of first recess 6 is connected with first round hole 5 on the stopper 2.
The rubber head dropper 14 is arranged inside the liquid-transfering gun head 1, the rubber head dropper 14 is composed of a connecting pipe 11, a first rubber head 10, a second rubber head 12 and a third rubber head 13, the first rubber head 10 is arranged on the connecting pipe 11, the second rubber head 12 is arranged on the first rubber head 10, and the third rubber head 13 is arranged on the second rubber head 12.
One end of the connecting pipe 11 is connected with one end of the pipette head 1, the other end of the connecting pipe 11 is provided with a first glue head 10, one end of the first glue head 10 is connected with the connecting pipe 11, the other end of the first glue head 10 is provided with a second glue head 12, one end of the second glue head 12 is connected with the first glue head 10, the second glue head 12 is provided with a third glue head 13, one end of the third glue head 13 is connected with the second glue head 12, the other end of the third glue head 13 is provided with the connecting pipe 11, one end of the connecting pipe 11 is connected with the third glue head 13, and the other end of the connecting pipe 11 is connected with the other end of the pipette head 1.
The squeezing device 4 is composed of a first fixing block 16, a spring 17, a fixing rod 21 and a second fixing block 18, the fixing rod 21 is arranged on the first fixing block 16, the spring 17 and the second fixing block 18 are arranged on the fixing rod 21, the fixing rod 21 is connected with the pipette tip 1, and the fixing rod 21 is arranged in a second round hole 15 on the pipette tip 1.
The first fixing block 16 is of an arc-shaped structure, the first fixing block 16 is arranged inside the pipette tip 1, the inner wall of the first fixing block 16 corresponds to the position of the rubber head on the rubber head dropper 14, and a fixing rod 21 is arranged in the middle of the outer wall of the first fixing block 16.
One end of the fixing rod 21 is connected with the first fixing block 16, an external thread 20 is arranged on the outer wall of the other end of the fixing rod 21, one end of the fixing rod 21 provided with the external thread 20 penetrates through the second round hole 15 in the pipette head 1, the fixing rod 21 penetrates through the outside of the pipette head 1 and is sleeved with the spring 17, one end of the fixing rod 21 provided with the external thread 20 is provided with the second fixing block 18, the second fixing block 18 is provided with a threaded hole 19, and the threaded hole 19 in the second fixing block 18 is matched with the external thread 20 in the outer wall of the fixing rod 21.
In embodiments 1 to 4, the limiting block 2 is arranged on the pipette tip 1, the dropping device 3 is arranged in the pipette tip 1, and the extruding device 4 is arranged on the dropping device 3, so that the purpose of preventing cross contamination of the pipette tip is achieved.
In addition, a limiting block 2 is arranged on the outer wall of the pipette tip 1, the limiting block 2 is used for being clamped on the opening of a test tube to prevent the pipette tip 1 from contacting the wall of the test tube, a connecting tube 11 is arranged in the pipette tip 1, a first rubber head 10, a second rubber head 12 and a third rubber head 13 are arranged between the connecting tubes 11, first fixing blocks 16 are arranged at corresponding positions on two sides of the first rubber head 10, the second rubber head 12 and the third rubber head 13, the first fixing blocks 16 are connected with the pipette tip 1 through fixing rods 21, springs 17 and second fixing blocks 18 are arranged on the fixing rods 21, the pipette tip 1 is arranged on the pipette tip, the pipette tip pumps test solution into the pipette tip 1, the second fixing blocks 18 on the pipette tip 1 push the first fixing blocks 16 through the fixing rods 21, the first fixing blocks 16 extrude the rubber heads, the second fixing blocks 18 at different positions on the pipette tip 1 are pressed to enable the first fixing blocks 16 to press the corresponding rubber heads, the test solution dripped by the rubber heads with different sizes is also relatively different, the structure of the utility model is reasonable and practical, the utility model is not only used for various test tubes, but also the pipette head is not required to touch the test tube when the test solution is added into the test tube, the cross contamination of the dropper is prevented, and the accuracy of the experiment is improved.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. The utility model provides a prevent cell cross contamination's liquid-transfering gun head, includes liquid-transfering gun head (1), stopper (2) and dropping liquid device (3), characterized by: be equipped with stopper (2) on liquid-transfering gun head (1), be equipped with dropping liquid device (3) in liquid-transfering gun head (1), dropping liquid device (3) comprise rubber head burette (14) and extrusion device (4), are equipped with extrusion device (4) on dropping liquid device (3), and extrusion device (4) are connected with liquid-transfering gun head (1).
2. A pipette tip for preventing cross-contamination of cells according to claim 1, wherein: the inside hollow structure that is of liquid-transfering gun head (1), be equipped with rubber head drip tube (14) in liquid-transfering gun head (1), the one end of liquid-transfering gun head (1) is coniform structure, the other end of liquid-transfering gun head (1) is cylinder or prism column structure, liquid-transfering gun head (1) all is equipped with second round hole (15) on the both sides of the outer wall of cylindrical one end, second round hole (15) are at least one, the orderly range of second round hole (15) is on the outer wall of liquid-transfering gun head (1), be equipped with extrusion device (4) in second round hole (15) on liquid-transfering gun head (1), liquid-transfering gun head (1) is equipped with stopper (2) on the outer wall of the cylindrical other end.
3. A pipette tip for preventing cross-contamination of cells according to claim 1, wherein: be equipped with first round hole (5) on stopper (2) one end intermediate position, stopper (2) are overlapped on liquid-transfering gun head (1) through first round hole (5), and the other end inside of stopper (2) is equipped with fourth recess (9), is equipped with third recess (8) on the bottom of fourth recess (9), is equipped with second recess (7) on the bottom of third recess (8), is equipped with first recess (6) on the bottom of second recess (7), and the bottom of first recess (6) is connected with first round hole (5) on stopper (2).
4. A pipette tip for preventing cross-contamination of cells according to claim 2, wherein: the rubber head dropper (14) is arranged inside the liquid transfer gun head (1), the rubber head dropper (14) is composed of a connecting pipe (11), a first rubber head (10), a second rubber head (12) and a third rubber head (13), the first rubber head (10) is arranged on the connecting pipe (11), the second rubber head (12) is arranged on the first rubber head (10), and the third rubber head (13) is arranged on the second rubber head (12).
5. A pipette tip for preventing cross-contamination of cells according to claim 4, in which: one end of connecting pipe (11) is connected with the one end of liquid-transfering gun head (1), be equipped with first gluey head (10) on the other end of connecting pipe (11), the one end of first gluey head (10) is connected with connecting pipe (11), be equipped with second gluey head (12) on the other end of first gluey head (10), the one end of second gluey head (12) is connected with first gluey head (10), the one end of third gluey head (13) is glued with second and is glued head (12) and be connected, be equipped with connecting pipe (11) on the other end of third gluey head (13), the one end of connecting pipe (11) is glued with the third and is connected head (13), the other end of connecting pipe (11) is connected with the other end of liquid-transfering gun head (1).
6. A pipette tip for preventing cross-contamination of cells according to claim 5, in which: first glue head (10), second and glue head (12) and third and glue head (13) and be soft material resilience matter and make, first glue head (10), second glue head (12) and third and glue head (13) structure as an organic whole, second glue head (12) and be greater than first glue head (10), third glue head (13) and be greater than second and glue head (12), the first position of gluing head (10), second glue head (12) and third glue head (13) is corresponding with second round hole (15) position on pipetting gun head (1) outer wall respectively.
7. A pipette tip for preventing cross-contamination of cells according to claim 1, wherein: the squeezing device (4) is composed of a first fixing block (16), a spring (17), a fixing rod (21) and a second fixing block (18), the fixing rod (21) is arranged on the first fixing block (16), the spring (17) and the second fixing block (18) are arranged on the fixing rod (21), the fixing rod (21) is connected with the liquid transfer gun head (1), and the fixing rod (21) is arranged in a second round hole (15) in the liquid transfer gun head (1).
8. A pipette tip for preventing cross-contamination of cells according to claim 7, in which: the first fixing block (16) is of an arc-shaped structure, the first fixing block (16) is arranged inside the pipette tip (1), the inner wall of the first fixing block (16) corresponds to the position of a rubber head on the rubber head dropper (14), and a fixing rod (21) is arranged in the middle of the outer wall of the first fixing block (16).
9. A pipette tip for preventing cross-contamination of cells according to claim 8 and in which: one end of a fixing rod (21) is connected with a first fixing block (16), an external thread (20) is arranged on the outer wall of the other end of the fixing rod (21), one end of the fixing rod (21) provided with the external thread (20) penetrates through a second round hole (15) in a liquid-transfer gun head (1), the fixing rod (21) penetrates through the outside of the liquid-transfer gun head (1) and is sleeved with a spring (17), one end of the fixing rod (21) provided with the external thread (20) is provided with a second fixing block (18), the second fixing block (18) is provided with a threaded hole (19), and the threaded hole (19) in the second fixing block (18) is matched with the external thread (20) in the outer wall of the fixing rod (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121343884.2U CN215823103U (en) | 2021-06-17 | 2021-06-17 | Pipette tip for preventing cross contamination of cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121343884.2U CN215823103U (en) | 2021-06-17 | 2021-06-17 | Pipette tip for preventing cross contamination of cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215823103U true CN215823103U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121343884.2U Active CN215823103U (en) | 2021-06-17 | 2021-06-17 | Pipette tip for preventing cross contamination of cells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215823103U (en) |
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2021
- 2021-06-17 CN CN202121343884.2U patent/CN215823103U/en active Active
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