CN211367566U

CN211367566U - Anti-pollution straw for cell culture

Info

Publication number: CN211367566U
Application number: CN202020775038.7U
Authority: CN
Inventors: 王忠伟; 陈爱花; 符世虎
Original assignee: Hainan Jimin Boao International Hospital Co ltd
Current assignee: Hainan Jimin Boao International Hospital Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-08-28
Anticipated expiration: 2030-05-12

Abstract

The utility model discloses an anti-pollution straw for cell culture relates to cell culture appurtenance technical field, including the straw main part, straw main part openly middle part bottom is provided with the scale, and straw main part middle part activity is provided with the piston, and the piston lateral wall is connected with straw main part inside wall laminating, and the straw main part is inside fixed to be provided with the limiting plate, and the limiting plate is located the piston top, and the limiting plate middle part runs through and has seted up logical groove, and the fixed dead lever that is provided with in piston top middle part, and the top of dead lever runs through logical groove to extend to the limiting plate top, the fixed extension. The utility model discloses a rotate the swivel and make the swivel rebound, drive extension ring and extension rod rebound to drive dead lever pulling piston rebound, make the straw main part absorb the culture solution through absorbing the tubule, the swivel can finely tune, is provided with the scale in the straw main part simultaneously, is favorable to making things convenient for the ration to absorb.

Description

Anti-pollution straw for cell culture

Technical Field

The utility model relates to a cell culture appurtenance technical field, in particular to anti-pollution straw for cell culture.

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. The growth of cells requires a nutrient environment and the nutrient medium used to maintain cell growth is called the culture medium. The culture medium can be divided into a liquid culture medium and a solid culture medium according to its physical state. Adding a certain coagulating agent (such as agar) or solid culture (such as testa Tritici, rice, etc.) into the liquid culture medium to obtain solid culture medium. The solid medium provides a nutrient and aerated surface for the growth of cells, and cells produced on such a nutrient surface can form a single colony.

The prior suction tube for cell culture mostly adopts an integral structure when in use, and a rubber head is connected with a sampling tube body into a whole, so that the suction tube can not achieve quantitative suction, and the suction amount is inconvenient to control when in use; simultaneously the head is glued to the straw rubber of integral structure and is even as an organic whole with the body of taking a sample, need glue the head together with rubber and wash when wasing, comparatively troublesome to current straw when absorbing the culture solution, the power of extrusion rubber glue the head is too big, can make culture solution and rubber diaphragm contact, causes rubber diaphragm to receive the pollution, needs to clear up rubber diaphragm, need consume a large amount of labour resources and wash.

Therefore, it is necessary to develop a pipette for cell culture which is resistant to contamination to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-pollution straw for cell culture to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-pollution straw for cell culture comprises a straw body, wherein scales are arranged at the bottom end of the middle part of the front surface of the straw body, a piston is movably arranged at the middle part of the straw body, the outer side wall of the piston is jointed and connected with the inner side wall of the straw body, a limiting plate is fixedly arranged inside the straw body and is positioned at the top of the piston, a through groove is formed in the middle of the limiting plate in a penetrating manner, a fixed rod is fixedly arranged at the middle of the top end of the piston, the top end of the fixed rod penetrates through the through groove and extends to the top of the limiting plate, an extension rod is fixedly arranged at the top end of the fixed rod, sliding grooves are respectively formed in the top ends of the inner walls at two sides of the straw body, two ends of the extension rod respectively penetrate through the sliding grooves and extend to the outer side of the straw body, the bottom of extending the ring inserts swivel top middle part, the bottom of extending the ring is passed through the bearing and is rotated with the swivel and be connected, straw main part lateral wall top portion is provided with the screw thread, and swivel inboard and straw main part lateral wall threaded connection, the limiting plate both sides all run through and have seted up first through-hole, straw main part inner wall both sides middle part all runs through and has seted up the second through-hole, and two second through-holes all are located the limiting plate top.

Preferably, the inner wall of the through groove is fixedly provided with a slip increasing layer, and the slip increasing layer is attached to and connected with the outer side wall of the fixed rod.

Preferably, the outer side of the swivel is fixedly provided with a plurality of groups of damping bulges distributed at equal intervals, and each group of damping bulges comprises a plurality of damping bulges distributed in an annular array.

Preferably, the front top end of the straw body is fixedly provided with two limiting blocks, and the two limiting blocks are respectively positioned at the top end and the bottom end of the thread on the outer side wall of the straw body.

Preferably, the fixed thin pipe that absorbs that runs through in straw main part inner wall bottom middle part is provided with, and the top and the straw main part bottom inner wall parallel and level of absorbing the thin pipe, the straw main part is made for transparent plastic.

Preferably, the damping blocks are fixedly arranged on two sides of the middle part of the outer side wall of the straw body and are arranged in an arc shape.

Preferably, the top end of the straw main body is fixedly provided with a fixed block, and the middle part of one side of the fixed block is fixedly provided with a hook.

The utility model discloses a technological effect and advantage:

1. the utility model makes the rotary ring move upwards by rotating the rotary ring, drives the extension ring and the extension rod to move upwards, thereby driving the fixed rod to pull the piston to move upwards, making the straw main body absorb the culture solution by absorbing the tubule, the rotary ring can be finely adjusted, and the straw main body is provided with scales, which is beneficial to convenient quantitative absorption;

2. the utility model, through the arrangement of the piston, the culture solution can not be sucked to the top of the piston forever when the culture solution is sucked, so that only the tube body at the bottom part of the straw main body needs to be cleaned when the straw is cleaned, thereby being beneficial to the convenience of cleaning and preventing other parts in the straw main body from being polluted;

3. the utility model discloses a setting of fixed block and couple is favorable to conveniently taking and placing the straw main part.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the cross-sectional view of fig. 1 according to the present invention.

Fig. 3 is a partially enlarged schematic structural diagram of fig. 2 according to the present invention.

In the figure: 1. a straw body; 2. sucking the thin tube; 3. a piston; 4. fixing the rod; 5. a chute; 6. an extension rod; 7. an extension ring; 8. rotating the ring; 9. a limiting plate; 10. a through groove; 11. a first through hole; 12. a second through hole; 13. a slip layer; 14. a fixed block; 15. hooking; 16. a damping projection; 17. a limiting block; 18. a damping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an anti-pollution straw for cell culture as shown in figures 1-3, which comprises a straw main body 1, wherein the bottom end of the middle part of the front surface of the straw main body 1 is provided with scales, and the scales are formulated according to the size of the actual straw main body 1.

The middle part of the straw main body 1 is movably provided with a piston 3, the outer side wall of the piston 3 is connected with the inner side wall of the straw main body 1 in a fitting manner, and the setting of the piston 3 ensures that the culture solution can not be sucked to the top of the piston 3 forever when being sucked, so that only the pipe body at the bottom part of the straw main body 1 needs to be cleaned when being cleaned, which is beneficial to cleaning and is beneficial to preventing pollution to other parts inside the straw main body 1, a limiting plate 9 is fixedly arranged inside the straw main body 1, the limiting plate 9 is positioned at the top part of the piston 3, a through groove 10 is penetratingly arranged in the middle part of the limiting plate 9, a fixed rod 4 is fixedly arranged in the middle part of the top end of the piston 3, the top end of the fixed rod 4 penetrates through the through groove 10 and extends to the top part of the limiting plate 9, the, contamination is formed.

An extension rod 6 is fixedly arranged at the top end of the fixed rod 4, sliding grooves 5 are respectively arranged at the top ends of the inner walls of two sides of the straw body 1 in a penetrating way, two ends of the extension rod 6 respectively penetrate through the sliding grooves 5 and extend to the outer side of the straw body 1, an extension ring 7 and a rotating ring 8 are sleeved in the middle of the outer side wall of the straw body 1, the rotating ring 8 is positioned at the bottom of the extension ring 7, two ends of the extension rod 6 are respectively and fixedly connected with two sides of the inner side wall of the extension ring 7, the bottom end of the extension ring 7 is inserted into the middle of the top end of the rotating ring 8, the bottom end of the extension ring 7 is rotatably connected with the rotating ring 8 through a bearing, a thread is arranged at the top end part of the outer side wall of the straw body 1, the inner side of the rotating ring 8 is in threaded connection with the outer side wall of the straw body 1 (the density, drive extension ring 7 and extension rod 6 rebound to drive 4 pulling pistons of dead lever 3 rebound, make straw main part 1 absorb the culture solution through absorbing tubule 2, swivel 8 can finely tune, be provided with the scale on the straw main part 1 simultaneously, be favorable to making things convenient for the ration to absorb, limiting plate 9 both sides all run through and have seted up first through-hole 11, straw main part 1 inner wall both sides middle part all runs through and has seted up second through-hole 12, and two second through-holes 12 all are located limiting plate 9 top.

Further, the fixed multiunit that is equidistant distribution's damping arch 16 that is provided with in the change 8 outside, and every group includes a plurality of annular array distribution's that are damping arch 16, setting through a plurality of damping arch 16, damping arch 16 is favorable to increasing frictional force, convenient rotation change 8, the fixed portion that runs through in 1 inner wall bottom middle part of straw main part is provided with absorbs tubule 2, and absorb tubule 2's top and 1 bottom inner wall parallel and level of straw main part, straw main part 1 is made for transparent plastic, the fixed block 14 that is provided with in 1 top of straw main part, the fixed couple 15 that is provided with in one side middle part of fixed block 14, setting through fixed block 14 and couple 15, fixed block 14 can conveniently take straw main part 1, and couple 15 can be when not using straw main part 1, hang, conveniently place.

Secondly, it increases smooth layer 13 to lead to fixed being provided with of 10 inner walls of groove, and increase smooth layer 13 and be connected with the laminating of 4 lateral walls of dead lever, it makes for polytetrafluoroethylene to increase smooth layer 13, polytetrafluoroethylene has minimum coefficient of friction, thereby reduce the friction of 4 lateral walls of dead lever and the interior wall of

groove

10, 1 positive top of straw main part is fixed and is provided with two stopper 17, and two stopper 17 are located 1 lateral wall threaded top and bottom of straw main part respectively, 1 lateral wall middle part both sides of straw main part are all fixed and are provided with damping block 18, and damping block 18 is the arc setting, setting through damping block 18, can be when using straw main part 1, conveniently catch straw main part 1, place straw main part 1 and rock, the culture solution is absorb in the influence.

The utility model discloses the theory of operation:

when the suction tube is used, firstly, the whole suction tube body 1 is taken up through the fixing block 14, the damping block 18 is held by the left hand to prevent the suction tube body 1 from shaking, then, a part of the bottom end of the suction tubule 2 is inserted into a culture solution, then, the swivel 8 is rotated by the right hand to enable the swivel 8 to move upwards, the swivel 8 drives the extension ring 7 and the extension rod 6 to move upwards while moving, the extension rod 6 drives the fixing rod 4 and the piston 3 to move upwards, the piston 3 moves upwards while enabling air in the inner cavity of the suction tube body 1 positioned at the top of the piston 3 to be extruded out and to be discharged through the first through hole 11 and the second through hole 12, the air amount in the inner cavity of the suction tube body 1 positioned at the bottom of the piston 3 is unchanged, the air pressure is reduced to form negative pressure, so that the culture solution enters the inner lower end of the suction tube body 1 through the suction tubule 2, the swivel 8 is slowly rotated and, to quantitatively aspirate the culture solution.

After sucking a certain amount of culture solution, remove straw main part 1 to the household utensils top that need place the culture solution, through reverse rotation swivel 8, make swivel 8 drive extend ring 7 and extension rod 6 downstream to make piston 3 downstream, extrude the culture solution of the inside lower extreme of straw main part 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. An anti-pollution straw for cell culture, includes straw main part (1), its characterized in that: the scale is arranged at the bottom end of the middle part of the front surface of the straw main body (1), a piston (3) is movably arranged at the middle part of the straw main body (1), the outer side wall of the piston (3) is connected with the inner side wall of the straw main body (1) in a laminating manner, a limiting plate (9) is fixedly arranged in the straw main body (1), the limiting plate (9) is positioned at the top part of the piston (3), a through groove (10) is formed in the middle part of the top end of the piston (3), a fixing rod (4) is fixedly arranged at the top end of the fixing rod (4) in a penetrating manner and extending manner to the top part of the limiting plate (9), an extending rod (6) is fixedly arranged at the top end of the fixing rod (4), sliding grooves (5) are formed in the top ends of the inner walls at the two sides of the straw main, straw body (1) lateral wall middle part is cup jointed and is provided with extension ring (7) and swivel (8), and swivel (8) are located extension ring (7) bottom, the both ends of extension rod (6) respectively with extend ring (7) inside wall both sides fixed connection, the bottom of extending ring (7) inserts swivel (8) top middle part, the bottom of extending ring (7) is passed through the bearing and is rotated with swivel (8) and be connected, straw body (1) lateral wall top portion is provided with the screw thread, and swivel (8) inboard and straw body (1) lateral wall threaded connection, limiting plate (9) both sides all run through and have seted up first through-hole (11), straw body (1) inner wall both sides middle part all runs through and has seted up second through-hole (12), and two second through-holes (12) all are located limiting plate (9) top.

2. The contamination-preventive pipette for cell culture according to claim 1, characterized in that: the inner wall of the through groove (10) is fixedly provided with a slip increasing layer (13), and the slip increasing layer (13) is attached to and connected with the outer side wall of the fixing rod (4).

3. The contamination-preventive pipette for cell culture according to claim 1, characterized in that: the outer side of the rotating ring (8) is fixedly provided with a plurality of groups of damping bulges (16) which are distributed at equal intervals, and each group comprises a plurality of damping bulges (16) which are distributed in an annular array.

4. The contamination-preventive pipette for cell culture according to claim 1, characterized in that: the suction pipe is characterized in that two limiting blocks (17) are fixedly arranged at the top end of the front surface of the suction pipe main body (1), and the two limiting blocks (17) are respectively positioned at the top end and the bottom end of the thread on the outer side wall of the suction pipe main body (1).

5. The contamination-preventive pipette for cell culture according to claim 1, characterized in that: straw main part (1) inner wall bottom middle part is fixed to run through and is provided with and absorbs tubule (2), and absorbs the top and straw main part (1) bottom inner wall parallel and level of tubule (2), straw main part (1) is made for transparent plastic.

6. The contamination-preventive pipette for cell culture according to claim 1, characterized in that: the straw body (1) is characterized in that damping blocks (18) are fixedly arranged on two sides of the middle of the outer side wall of the straw body (1), and the damping blocks (18) are arranged in an arc shape.

7. The contamination-preventive pipette for cell culture according to claim 1, characterized in that: the straw is characterized in that a fixing block (14) is fixedly arranged at the top end of the straw main body (1), and a hook (15) is fixedly arranged in the middle of one side of the fixing block (14).