Spiral pipette tip structure

Abstract

The utility model discloses a spiral pipette tip structure which comprises a tip part, an elastic clamping mechanism is arranged at the top end of the tip part, the tip part comprises an interface part, the bottom end of the interface part is fixedly communicated with a suction port part, the inner wall of the suction port part is provided with a plurality of inner spiral channels which are uniformly distributed, and the plurality of inner spiral channels are parallel to one another. And each inner spiral channel extends to a bottom end opening of the suction opening part. According to the utility model, the inner spiral channel is formed in the suction port part, so that a stable flow speed and direction can be formed when liquid flows, and the instability of liquid flowing is reduced. Compared with a straight barrel type gun head, the spiral channel can buffer violent fluctuation during liquid suction or release, especially when liquid with a large size is sucked, the effect is more obvious, liquid residues are reduced, the sample transfer efficiency is improved, and the spiral channel is beneficial to more stable liquid flowing and reduction of splashing or generation of bubbles.

Description

Technical Field

[0001] This utility model relates to the field of pipette technology, specifically to a spiral pipette tip structure. Background Technology

[0002] A pipette is a type of pipette commonly used in laboratories for transferring small or minute volumes of liquids. Pipettes are precision instruments and must be handled and stored with care to prevent damage and ensure their volume control capabilities are met. Pipettes come in different sizes, and different sizes of pipette tips are used with different pipette sizes.

[0003] However, existing pipette tips are prone to unstable liquid flow during use, with the liquid easily accelerating or decelerating suddenly, causing splashing or overflow. This not only leads to laboratory contamination and sample waste, but also results in residue buildup inside the pipette tip during pipetting, causing inaccurate pipetting and reducing experimental accuracy. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a spiral pipette tip structure to solve the issues raised in the background section.

[0005] To achieve the above objectives, this utility model proposes a spiral pipette tip structure, including a tip component, wherein an elastic clamping mechanism is provided at the top of the tip component;

[0006] The gun head component includes an interface portion, the bottom end of which is fixedly connected to a suction port portion, and the inner wall of the suction port portion is provided with multiple evenly distributed internal spiral channels.

[0007] As a preferred embodiment of this utility model, the plurality of inner spiral channels are parallel to each other, and each inner spiral channel extends to the bottom port of the suction port.

[0008] As a preferred technical solution of this utility model, the elastic clamping mechanism includes two arc-shaped plates, and each arc-shaped plate has a movable hole on one side.

[0009] As a preferred technical solution of this utility model, each of the movable holes is fixedly provided with an arc-shaped spring piece, and one end of each arc-shaped spring piece is fixedly provided with a rubber protective sleeve.

[0010] The spiral pipette tip structure proposed in this utility model can bring the following beneficial effects:

[0011] 1. This spiral pipette tip features an internal spiral channel within the suction port, which creates a stable flow velocity and direction, reducing flow instability. Compared to straight pipette tips, the spiral channel buffers drastic fluctuations during liquid aspiration or dispensing, especially noticeable when aspirating larger volumes, reducing liquid residue and improving sample transfer efficiency. The spiral channel also contributes to smoother liquid flow, minimizing splashing or bubble formation.

[0012] 2. This spiral pipette tip features an internal spiral channel within the aspiration port. This spiral channel provides a smoother flow path, preventing liquid from adhering to the inner wall of the tip, reducing liquid residue, and improving accuracy. It also reduces the deposition or clogging of particles or suspended matter, making it more suitable for handling complex fluids such as cell suspensions and particle suspensions. The spiral design alleviates excessive shear forces generated when fluid passes through the tip, thus better protecting sample integrity. Traditional straight pipette tips generate significant shear forces during rapid aspiration or release of liquids, leading to damage to biological samples or experimental errors. In some designs, the spiral structure can enhance the airtightness of the tip, preventing outside air from entering and ensuring more precise volume control during pipetting. Furthermore, this structure may reduce liquid evaporation, especially advantageous when handling volatile solutions.

[0013] 3. The spiral pipette tip structure features an elastic clamping mechanism. An arc-shaped spring is installed in the movable hole of the arc plate, and the arc-shaped spring is connected to a rubber protective sleeve. When the tip is connected to the pipette, the elastic clamping mechanism acts on the pipette end to ensure a more secure connection between the tip and the pipette. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a top view of the suction port of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the suction port of this utility model.

[0018] In the diagram: 1. Gun head component; 101. Interface part; 102. Suction port part; 103. Inner spiral channel; 2. Elastic clamping mechanism; 201. Arc plate; 202. Movable hole; 203. Arc spring; 204. Rubber protective sleeve. Detailed Implementation

[0019] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0020] like Figures 1-3 As shown, an embodiment of this utility model proposes a spiral pipette tip structure, including a tip component 1. The tip component 1 has an elastic clamping mechanism 2 at its top end. The tip component 1 includes an interface portion 101. The bottom end of the interface portion 101 is fixedly connected to a suction port portion 102. The inner wall of the suction port portion 102 has multiple evenly distributed inner spiral channels 103. The multiple inner spiral channels 103 are parallel to each other, and each inner spiral channel 103 extends to the bottom port of the suction port portion 102.

[0021] The elastic clamping mechanism 2 includes two arc-shaped plates 201. Each arc-shaped plate 201 has a movable hole 202 on one side. Each movable hole 202 has an arc-shaped spring piece 203 fixedly installed inside it. Each arc-shaped spring piece 203 has a rubber protective sleeve 204 fixedly installed at one end.

[0022] Working Principle: In use, the experimenter aligns the elastic clamping mechanism 2 with the pipette tip and places it on the tip. The movable hole 202 of the arc-shaped plate 201 connects to the arc-shaped spring 203. Under the elastic action of the arc-shaped spring 203, the interface 101 of the pipette tip component can be stably fitted at the pipette port. By setting the pipette's suction volume, the suction nozzle 102 can be operated to draw liquid. The inner spiral channel 103 within the suction nozzle 102 allows the liquid to form a stable flow velocity and direction, reducing the instability of liquid flow. Compared to a straight pipette tip, the inner spiral channel 103 can buffer the violent fluctuations during liquid aspiration or release, especially when drawing larger volumes of liquid. The inner spiral channel 103 can reduce the formation of air bubbles, thereby improving the accuracy of pipetting and the reliability of experimental results. The inner spiral channel 103 is helpful for handling high-viscosity liquids, such as glycerol, oils, or concentrated solutions. In this context, the inner spiral channel 103 provides a smoother flow path, preventing liquid from adhering to the inner wall of the pipette tip, while reducing liquid residue and improving accuracy. The spiral design of the inner spiral channel 103 reduces the deposition or clogging of particles or suspended matter, making it more suitable for handling complex fluids such as cell suspensions and particulate suspensions. The spiral structure of the inner spiral channel 103 allows the liquid to flow in a rotating manner along the channel, which helps to completely expel the liquid from the pipette tip, reducing residue inside the tip, especially when aspirating trace amounts or high-viscosity liquids. Compared to traditional straight pipette tips, the residue is significantly reduced, further improving experimental accuracy. The spiral design of the inner spiral channel 103 helps to more precisely control the sample volume per pipette transfer, ensuring that almost all liquid is effectively transferred, reducing sample waste. For some shear-sensitive samples (such as biological samples, protein solutions, or cell suspensions), the spiral design of the inner spiral channel 103 can alleviate excessive shear forces generated when fluid passes through the pipette tip, thereby better protecting the integrity of the sample. The spiral structure of the inner spiral channel 103 enhances the airtightness of the pipette tip, preventing outside air from entering and ensuring more precise volume control during pipetting. This structure also reduces liquid evaporation, offering particular advantage when handling volatile solutions. The spiral structure of the inner spiral channel 103 can be combined with a high-efficiency filter design to further reduce the entry of external contaminants or aerosols into the sample, making it especially suitable for experimental environments requiring high cleanliness. The inner spiral channel 103 not only reduces the residue of large volumes of liquid but also facilitates high-precision pipetting operations, especially in micro-pipettes, reducing the possibility of liquid remaining at the tip and ensuring more accurate volume control. Compared to traditional pipette tips, which are prone to errors when aspirating small volumes of liquid, the spiral structure of the inner spiral channel 103 reduces such errors through fluid guidance. The advantages of spiral pipette tips are particularly evident in high-precision experiments (such as PCR and quantitative fluorescence analysis).The spiral structure can mitigate sudden acceleration and deceleration of liquids, especially during drainage, reducing liquid splashing or overflow, preventing laboratory contamination and sample waste, which is particularly important when handling high-risk or sensitive chemicals.

[0023] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A spiral pipette tip structure, comprising a tip component (1), wherein the tip component (1) is provided with an elastic clamping mechanism (2) at its top end, characterized in that: The gun head component (1) includes an interface part (101), the bottom end of which is fixedly connected to a suction port part (102), and the inner wall of the suction port part (102) is provided with a plurality of evenly distributed inner spiral channels (103).

2. The spiral pipette tip structure according to claim 1, characterized in that: The plurality of inner spiral channels (103) are parallel to each other, and each inner spiral channel (103) extends to the bottom port of the suction port (102).

3. The spiral pipette tip structure according to claim 1, characterized in that: The elastic clamping mechanism (2) includes two arc-shaped plates (201), and each arc-shaped plate (201) has a movable hole (202) on one side.

4. The spiral pipette tip structure according to claim 3, characterized in that: Each of the movable holes (202) is fixedly provided with an arc-shaped spring piece (203), and one end of each arc-shaped spring piece (203) is fixedly provided with a rubber protective sleeve (204).

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