Wiping pen brush for pipettor suction nozzle

Abstract

The utility model relates to the field of pipettor suction nozzle cleaning, and discloses a wiping brush for a pipettor suction nozzle, which comprises an injector, a penholder and a brush, the end part of the injector is provided with a threaded interface, the penholder is conical and hollow, the large-diameter end of the penholder is provided with a threaded section connected with the threaded interface, and the brush is arranged on the penholder. The small-diameter end of the pen holder is fixedly connected with the brush, and the brush is in a water drop shape. The wiping pen brush for the pipettor suction nozzle has the advantages that the brush can conveniently extend into the suction nozzle for wiping through the wiping pen brush composed of the injector, the pen holder and the brush, and the problem that an existing wiping rod cannot extend into the suction nozzle for cleaning is solved; meanwhile, proper washing liquid can be selected for the injector so that the brush can be soaked for wiping conveniently, use is faster, and after cleaning, the large liquid flow can be increased to clean the brush.

Description

Technical Field

[0001] This utility model relates to the field of pipette tip cleaning, and in particular to a wiping brush for pipette tips. Background Technology

[0002] A pipette is a measuring instrument used to transfer liquid from one container to another within a certain volume range. When using it: first, select a suitable pipette and set the transfer volume. Then, align the pipette tip with the pipette head and press down vertically to secure the tip. Perform the pipetting operation. After pipetting, remove the tip. Commonly used pipettes in laboratories have capacities of 100 μL and 300 μL. If the sample is viscous or flocculent, sample may splash into the orifice of the flexible pipette tip during aspiration, or the tip may touch the bottom and be drawn into the flexible tip when aspirating solution. If these situations occur and are not addressed promptly, contamination can easily occur when preparing samples or solutions of lower concentrations. Furthermore, if the tip is not cleaned for a long time, sample may condense in the orifice, clogging the pores and affecting the accuracy of the pipette. The orifice diameter of the pipette tips of existing 100μL pipettes is about 1 mm, and that of 300μL pipette tips is about 1.5 mm. However, existing wiping swabs cannot meet this diameter requirement, and their tips cannot be inserted into the pipette tips for cleaning. Therefore, there is an urgent need to provide a tool for cleaning pipette tips. Utility Model Content

[0003] The purpose of this invention is to solve the problems in the background art by providing a wiping brush for pipette tips, which can clean commonly used pipette tips to prevent sample contamination and clogging.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A wiping brush for pipette tips includes a syringe, a pen barrel, and a brush. The syringe end is machined with a threaded interface. The pen barrel is tapered and hollow. The large-diameter end of the pen barrel is machined with a threaded section that connects to the threaded interface. The small-diameter end of the pen barrel is fixedly connected to the brush. The brush is teardrop-shaped.

[0006] The syringe has graduated lines machined on it.

[0007] The brush is 9 mm long and 1.5 mm wide.

[0008] The wiping brush for pipette tips provided by this utility model has the following advantages: the wiping brush, composed of a syringe, a pen, and a brush, allows the brush to be easily inserted into the tip for wiping, solving the problem that existing wiping sticks cannot be inserted into the tip for cleaning; at the same time, the syringe can be equipped with a suitable cleaning solution to easily wet the brush for wiping, making it quicker to use, and after cleaning, a larger liquid flow rate can be increased to clean the brush. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a structural schematic diagram provided for an embodiment of the present utility model.

[0011] Figure 2 An exploded view provided for an embodiment of this utility model.

[0012] Reference numerals: 1. Syringe; 2. Scale line; 3. Threaded interface; 4. Pen barrel; 5. Threaded section; 6. Brush. Detailed Implementation

[0013] Example

[0014] like Figure 1 , Figure 2 As shown, the wiping brush for pipette tips provided in this embodiment includes a syringe 1, a pen 4, and a brush 6. The syringe 1 has a threaded interface 3 machined at its end. The pen 4 is tapered and hollow. The large-diameter end of the pen 4 has a threaded section 5 that connects to the threaded interface 3. The pen 4 is detachably connected to the syringe 1 through the threaded section 5 for easy replacement. In addition, it can shorten the length of the wiping brush for easy storage. The small-diameter end of the pen 4 is fixedly connected to the brush 6. The brush 6 is slender and teardrop-shaped, with a length of 9 mm and a width of 1.5 mm. The starting end can easily extend into the pipette tip to clean the tip.

[0015] To improve cleaning efficiency, the syringe 1 is machined with graduation lines 2, which can be used to determine the pumping volume of the cleaning solution.

[0016] The method of using this utility model is as follows:

[0017] In use, first use syringe 1 to draw up the cleaning solution, then screw the threaded section 5 of pen barrel 4 together with the threaded interface 3 of syringe 1. Next, use syringe 1 to pump the cleaning solution into brush 6, so that the cleaning solution wets brush 6. Then, insert brush 6 into the suction nozzle for wiping. Using syringe 1 can reduce the process of removing the cleaning solution from brush 6, effectively saving cleaning time. After cleaning the suction nozzle, the flow rate of cleaning solution can be increased by syringe 1 to clean brush 6, thereby avoiding repeated cleaning of brush 6 in the cleaning solution, which would waste the cleaning solution, and avoid excessive cleaning of brush 6 which would cause bristle loss.

[0018] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by this utility model should be covered within the protection scope of this utility model. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and descriptions of well-known components, processing technologies, and processes are omitted to avoid unnecessarily limiting this utility model.

Claims

1. A wiping brush for pipette tips, characterized in that, The device includes a syringe (1), a pen (4), and a brush (6). The syringe (1) has a threaded interface (3) at its end. The pen (4) is conical and hollow. The large-diameter end of the pen (4) has a threaded section (5) that connects to the threaded interface (3). The small-diameter end of the pen (4) is fixedly connected to the brush (6). The brush (6) is teardrop-shaped.

2. The wiping brush for pipette tips according to claim 1, characterized in that, The syringe (1) has graduated lines (2) machined on it.

3. The wiping brush for pipette tips according to claim 1, characterized in that, The brush (6) is 9 mm long and 1.5 mm wide.

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