CN221156741U

CN221156741U - Pipette suction head

Info

Publication number: CN221156741U
Application number: CN202322936307.XU
Authority: CN
Inventors: 张香琴; 胡虎; 罗怡凡
Original assignee: Henan Honghui Medical Technology Co ltd
Current assignee: Henan Honghui Medical Technology Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-06-18
Anticipated expiration: 2033-10-31

Abstract

The utility model relates to the technical field of experimental consumables, in particular to a pipette tip, which can prevent aerosol, microorganisms and the like in an operation environment from polluting the inside of a hair washing head by adding a filter paper ventilation module in the interior of a connecting sample adding section, wherein the filter paper ventilation module adopts a circular filter paper structure with a water-contacting color-changing function, so that the filter paper module changes color when a pipette of the pipette tip is subjected to back suction, and an operator is reminded of the back suction; meanwhile, liquid and aerosol can be prevented from entering the liquid dispenser, pollution and damage of the liquid dispenser are prevented, and the inside of the suction head is kept from being polluted through the arranged filter block and the filter element; secondly, the connection tightness can be improved by adding the connecting end of the liquid dispenser and the anti-skid convex blocks arranged in the connecting adapting section on the top surface of the connecting adapting section, and the liquid dispenser is prevented from loosening and falling off during connection.

Description

Pipette suction head

Technical Field

The utility model relates to the technical field of experimental consumables, in particular to a pipette tip.

Background

The pipette tip is mainly applied to various laboratories, is usually matched with various pipettes, and is used for quantitatively transferring liquid. The pipette tip is of an inverted cone structure, and an opening is arranged at the lower part of the pipette tip. When the liquid sucking device is used, the upper part of the sucking head is connected with the liquid dispenser to form a closed structure, the lower part of the sucking head is placed into liquid to be sucked, the piston in the liquid dispenser moves for a certain distance, and the liquid with the same volume can enter the inside of the sucking head.

However, the pipette tips of the present stage have the following problems during use: 1. when the pipette tip is stored and used in a workbench, the pipette tip is frequently uncapped, and the risk of pollution caused by sedimentation of microorganisms/aerosols and the like into the tip exists; 2. generating aerosol in the suction head in the pipetting process, and entering the pipette to pollute the next reagent; 3. when the pipette tip is used, liquid can be sucked into the pipette tip upside down, but the operation staff can continue to use without awareness; 4. the problem of inaccurate pipetting due to the fact that the connection of the pipette tip is not tight due to the fact that the inner wall of the tip is not smooth may exist in the process of connection with the pipette.

Therefore, the production of the pipette tip can prevent pollution, and the pipette tip can remind the reverse suction pollution and the reverse suction in the pipetting process, so that the problem that the pipetting volume is inaccurate due to the fact that the pipette tip is not tightly connected with the pipette is effectively solved, and the pipette tip has wide market prospect.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the pipette tip which can prevent pollution, and can remind the suck-back pollution and suck-back in the pipetting process, effectively solves the problem of inaccurate pipetting volume caused by the fact that the pipette tip is not tightly connected with the pipette, and is used for overcoming the defects in the prior art.

The utility model adopts the technical scheme that: the utility model provides a pipettor suction head, includes filter core suction head body, filter core suction head body is both ends open-ended tubulose, filter core suction head body including the connection adaptation section that is equipped with, connect the application of sample section and connect sharp mouth section, the top surface of connection adaptation section on be equipped with the pipettor link, be equipped with skid proof block on the inner wall of connection adaptation section, the internally mounted of connection application of sample section have the filter block, the inside of filter block is equipped with the filter core, the inside of the connection application of sample section of the bottom surface below of filter block is equipped with the ventilative module of filter paper.

The connecting end, the connecting adapting section, the connecting sample adding section and the connecting tip section are of an integrated structure, and the connecting end, the connecting adapting section, the connecting sample adding section and the connecting tip section are all arranged to be in a pipe shape.

The diameter length of the connecting adapting section, the connecting sample adding section and the connecting tip section is reduced in sequence, and the diameter length of the connecting end is the same as that of the connecting adapting section.

The filter block is arranged at the top end of the interior of the connecting sample adding section, the filter block adopts a cylindrical structure of a cavity, and the diameter length of the filter block is identical with the diameter length of the connecting sample adding section.

The filter block is internally provided with a filter hole, and the filter element is inlaid in the filter hole.

The filter paper ventilation module is arranged on the bottom surface of the filter block, adopts a round filter paper structure with a water color-changing function, and the diameter length of the filter paper ventilation module is identical with that of the filter block.

The utility model has the beneficial effects that: firstly, the filter paper ventilation module is added into the connecting sample adding section, so that the frequent uncovering can be prevented, aerosol, microorganisms and the like in the operating environment pollute the inside of the hair washing, and the filter paper ventilation module adopts a round filter paper structure with a water color-changing function, so that the filter paper module changes color when the liquid transfer device is subjected to back suction, and an operator is reminded of back suction; meanwhile, liquid and aerosol can be prevented from entering the liquid dispenser, pollution and damage of the liquid dispenser are prevented, and the inside of the suction head is kept from being polluted through the arranged filter block and the filter element; secondly, the connection tightness can be improved by adding the connecting end of the liquid dispenser and the anti-skid convex blocks arranged in the connecting adapting section on the top surface of the connecting adapting section, and the liquid dispenser is prevented from loosening and falling off during connection; the utility model has the advantages of simple structure, convenient operation, ingenious design, great improvement of working efficiency, good social and economic benefits and easy popularization and use.

Drawings

Fig. 1 is a schematic overall perspective view of the present utility model.

Fig. 2 is a schematic perspective view of the whole perspective structure of the present utility model.

Fig. 3 is a schematic diagram of the front structure of the present utility model.

Fig. 4 is a schematic front sectional structure of the present utility model.

Detailed Description

In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application, but the "connection" in which the present application is referred to, unless otherwise indicated, includes both direct and indirect connection.

As shown in fig. 1, 2, 3 and 4, a pipette tip comprises a filter element tip body, wherein the filter element tip body is tubular with two open ends, the filter element tip body comprises a connecting adapting section (1), a connecting sample adding section (2) and a connecting tip section (3), a pipette connecting end (4) is arranged on the top surface of the connecting adapting section (1), an anti-slip bump (5) is arranged on the inner wall of the connecting adapting section (1), a filter block (6) is arranged in the connecting sample adding section (2), a filter element (7) is arranged in the filter block (6), a filter paper ventilation module (8) is arranged in the connecting sample adding section (2) below the bottom surface of the filter block (6), and the filter paper ventilation module (8) is added in the connecting sample adding section (2), so that the inside of a washing head can be prevented from being polluted by aerosol, microorganisms and the like in a frequent uncapping environment; simultaneously can prevent that liquid, aerosol from getting into the pipettor, prevent the pollution of pipettor from damaging the emergence, through adding pipettor link (4) and at internally mounted's of connection adaptation section (1) skid proof block (5) on the top surface of connection adaptation section (1), can promote connection compactness, prevent not hard up droing when the pipettor is connected.

The connecting end (4), the connecting adapting section (1), the connecting sample adding section (2) and the connecting tip section (3) are of an integrated structure, and the connecting end (4), the connecting adapting section (1), the connecting sample adding section (2) and the connecting tip section (3) are all arranged into a tube shape; the diameter length of the connecting adapting section (1), the connecting sample adding section (2) and the connecting tip section (3) is reduced in sequence, and the diameter length of the connecting end (4) is the same as that of the connecting adapting section (1).

The filter block (6) is arranged at the top end of the interior of the connecting sample adding section (2), the filter block (6) adopts a cylindrical structure of a cavity, and the diameter length of the filter block (6) is identical with the diameter length of the connecting sample adding section (2); the filter block (6) is internally provided with a filter hole, and the filter element (7) is inlaid in the filter hole.

The filter paper ventilation module (8) set up on the bottom surface of filter block (6), filter paper ventilation module (8) adopts the circular filter paper structure that has the function of changing colour that meets water, the diameter length of filter paper ventilation module (8) is identical with the diameter length of filter block (6), filter paper ventilation module (8) adopts the circular filter paper structure that has the function of changing colour that meets water, takes place the reaction of changing colour for filter paper module when making its pipettor take place the back suction, reminds operating personnel to take place the back suction.

The filter core suction head body can be replaced according to the size of a pipettor for sucking the solution.

The application method of the product is as follows: as shown in fig. 1, 2, 3 and 4, firstly, corresponding pipettors are arranged according to the volume of a solution to be sucked, according to the corresponding pipettors, a filter core suction head body corresponding to the pipettors is found, connection tightness can be improved by adding a pipettor connection end (4) and an anti-slip bump (5) arranged in the connection adaptation section (1) on the top surface of the connection adaptation section (1), loosening and falling off can be prevented when the pipettors are connected, and frequent uncovering can be prevented by adding a filter paper ventilation module (8) in the connection application section (2), and aerosol, microorganisms and the like in an operation environment pollute the inside of the hair washing; meanwhile, liquid and aerosol can be prevented from entering the liquid transfer device, pollution and damage of the liquid transfer device are prevented, and the inside of the suction head is kept from being polluted through the arranged filter block 6 and the filter element 7.

The utility model can prevent pollution, and can remind the reverse suction pollution and the reverse suction in the pipetting process, thereby effectively solving the problem of inaccurate pipetting volume caused by the fact that the pipette head is not tightly connected with the pipette, and leading the pipette head to have wide market prospect.

Claims

1. The utility model provides a pipettor suction head, includes filter core suction head body, filter core suction head body is both ends open-ended tubulose, filter core suction head body including connection adaptation section (1), connection application of sample section (2) and connection sharp mouth section (3) that are equipped with, its characterized in that: the top surface of connection adaptation section (1) on be equipped with pipettor link (4), be equipped with skid proof block (5) on the inner wall of connection adaptation section (1), the internally mounted of connection application of sample section (2) have filter block (6), the inside of filter block (6) is equipped with filter core (7), the inside of connection application of sample section (2) of the bottom surface below of filter block (6) is equipped with filter paper ventilation module (8).

2. The pipette tip of claim 1 wherein: the connecting end (4), the connecting adapting section (1), the connecting sample adding section (2) and the connecting tip section (3) are of an integrated structure, and the connecting end (4), the connecting adapting section (1), the connecting sample adding section (2) and the connecting tip section (3) are all arranged to be in a tube shape.

3. The pipette tip of claim 2 wherein: the diameter length of the connecting adapting section (1), the connecting sample adding section (2) and the connecting tip section (3) is reduced in sequence, and the diameter length of the connecting end (4) is the same as that of the connecting adapting section (1).

4. The pipette tip of claim 1 wherein: the filter block (6) is arranged at the top end of the interior of the connecting sample adding section (2), the filter block (6) adopts a cylindrical structure of a cavity, and the diameter length of the filter block (6) is identical with the diameter length of the connecting sample adding section (2).

5. The pipette tip of claim 1 wherein: the filter block (6) is internally provided with a filter hole, and the filter element (7) is inlaid in the filter hole.

6. The pipette tip of claim 1 wherein: the filter paper ventilation module (8) is arranged on the bottom surface of the filter block (6), the filter paper ventilation module (8) adopts a round filter paper structure with a water color-changing function, and the diameter length of the filter paper ventilation module (8) is identical with the diameter length of the filter block (6).