A flexible elbow pipette for cell culture

Abstract

The utility model discloses a flexible elbow pipette for cell culture belongs to pipette field. A flexible elbow pipette for cell culture of the utility model, including hard plastic pipe body, the hard plastic pipe body lower extreme is installed with the connecting pipe, the connecting pipe is integrally arranged with hard plastic pipe body, it still includes the embedded block, the embedded block is installed on the one end of connecting pipe away from hard plastic pipe body. The utility model solves the pipette head portion for straight design, when blowing and pasting the wall cell, it is difficult to reach the culture bottle corner area, especially the four corners of rectangular culture bottle, easy to cause cell residue, in addition, the dropper or pipette of glass material is easy to break because of extrusion or collision in the packing and transportation process, has increased the use cost and the experiment risk problem.

Description

Technical Field

[0001] This utility model relates to the field of pipettes, specifically a flexible elbow pipette for cell culture. Background Technology

[0002] In cell culture experiments, the digestion and collection of adherent cells are crucial steps. Currently, operators typically use bent glass droppers or pipettes for cell dispersal. Chinese Patent Publication No. CN213254516U discloses a pipette for cell culture, comprising a lower suction tube, a pipette reservoir connected to the upper end of the lower suction tube, and a pipette tip at the lower end of the lower suction tube. A lower choke tube is positioned between the lower suction tube and the pipette tip. The other end of the pipette reservoir is connected to an upper connecting tube, and the pipette reservoir is connected to an upper suction tube via the upper connecting tube. A connecting sleeve is connected to the upper end of the upper suction tube, and an upper choke tube is positioned between the upper suction tube and the connecting sleeve. This design, through the use of a detachable S-shaped pipette reservoir, prevents liquid from flowing back or spilling inside the pipette reservoir. Combined with the use of the upper and lower choke tubes, no residual liquid drips from the pipette tip, and it maintains pressure balance within the pipette, preventing liquid backflow. It is low-cost, simple to operate, and provides more stable and convenient solution transfer with higher efficiency.

[0003] The pipettes in the aforementioned patents have a straight tip design, which makes it difficult to reach the corners of the culture flask when blowing on adherent cells, especially the four corners of rectangular culture flasks, which can easily cause cell residue. In addition, glass droppers or pipettes are prone to breakage due to squeezing or collision during packaging and transportation, which increases the cost of use and experimental risks. Utility Model Content

[0004] The purpose of this invention is to provide a flexible elbow pipette for cell culture, which is a novel pipetting tool that can effectively pipette cells to the corners of the culture container and is easy to package and transport, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible elbow pipette for cell culture, comprising a rigid plastic tube body, a connecting tube installed at the lower end of the rigid plastic tube body, the connecting tube being integrally formed with the rigid plastic tube body, and an embedding block installed on the end of the connecting tube away from the rigid plastic tube body. A sleeve is installed at the end of the rigid plastic tube near the connecting tube, and an embedding groove is formed on the inner wall of the sleeve. The embedding block is engaged in the embedding groove. An elbow is installed at the lower end of the sleeve, the elbow being integrally formed with the sleeve. A suction bulb inlet is formed at the upper end of the rigid plastic tube body.

[0006] Preferably, a fitting slope is installed on the inner wall of the suction ball inlet, and the fitting slope is integrally formed with the rigid plastic tube body.

[0007] Preferably, the outer surface of the rigid plastic tube is provided with a scale, and the scale is integrally provided with the rigid plastic tube body.

[0008] Preferably, the rigid plastic tube has anti-slip patterns on both sides of its outer surface, and the anti-slip patterns are integrally formed with the rigid plastic tube.

[0009] Preferably, the connecting pipe has a first drain port at the end near the embedded block, and the first drain port is integrally formed with the connecting pipe.

[0010] Preferably, the rigid plastic tube has a baffle plate installed at one end near the connecting tube.

[0011] Preferably, an adhesive filling groove is provided between the adhesive baffle and the connecting pipe.

[0012] Preferably, the sleeve has a second drain port at the end away from the elbow.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features a non-toxic silicone elbow connected via an embedded limiter at the lower end of a rigid plastic tube. This design maintains the length advantage of traditional pipettes while enabling effective blowing of the corners of culture containers, significantly improving cell collection efficiency. The elbow, made of elastic silicone, can be bent and placed within traditional packaging materials during packaging, avoiding breakage caused by rigid structures and reducing transportation losses by over 80%. Furthermore, the pipette body is made of rigid plastic, unlike traditional glass, to prevent breakage during transportation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall external structure of this utility model; Figure 2 This is a schematic diagram of the overall main structure of this utility model; Figure 3 This is a schematic diagram of the connecting pipe structure of this utility model; Figure 4 This is a cross-sectional view of the elbow structure of this utility model.

[0015] In the diagram: 1. Rigid plastic tube; 2. Suction ball inlet; 3. Fitting slope; 4. Anti-slip pattern; 5. Scale; 6. Glue baffle; 7. Connecting pipe; 8. Glue filling groove; 9. First drain outlet; 10. Embedded block; 11. Socket pipe; 12. Second drain outlet; 13. Embedded groove; 14. Elbow. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] To address the problems in existing technologies where the straight tip of the pipette makes it difficult to reach the corners of the culture flask, especially the four corners of rectangular culture flasks, when dispersing adherent cells, easily resulting in cell residue, and the fact that glass droppers or pipettes are prone to breakage due to compression or impact during packaging and transportation, increasing usage costs and experimental risks, this embodiment provides the following technical solution: A flexible elbow pipette for cell culture includes a rigid plastic tube body 1, a connecting tube 7 integrally formed with the lower end of the rigid plastic tube body 1, and an insert block 10 mounted on the end of the connecting tube 7 away from the rigid plastic tube body 1. A sleeve tube 11 is mounted on the end of the rigid plastic tube 1 near the connecting tube 7, and an insert groove 13 is formed on the inner wall of the sleeve tube 11, into which the insert block 10 is engaged. An elbow 14 integrally formed with the sleeve tube 11 is mounted on the lower end of the sleeve tube 11. A suction bulb inlet 2 is formed on the upper end of the rigid plastic tube body 1, and a fitting is installed on the inner wall of the suction bulb inlet 2. Slope 3, the fitting slope 3 and the rigid plastic tube body 1 are integrally set. The outer surface of the rigid plastic tube body 1 is provided with scale 5, the scale 5 is integrally set with the rigid plastic tube body 1. The two sides of the outer surface of the rigid plastic tube body 1 are provided with anti-slip pattern 4, the anti-slip pattern 4 is integrally set with the rigid plastic tube body 1. The connecting pipe 7 has a first drain port 9 at the end near the embedded block 10, the first drain port 9 is integrally set with the connecting pipe 7. The rigid plastic tube body 1 has a baffle plate 6 installed at the end near the connecting pipe 7. The baffle plate 6 and the connecting pipe 7 have an adhesive filling groove 8. The sleeve 11 has a second drain port 12 at the end away from the elbow 14. In this embodiment, please refer to Figures 1-4A non-toxic silicone elbow is installed at the lower end of the rigid plastic tube body, which is connected by an embedded limit. This design maintains the length advantage of traditional pipettes and allows for effective blowing of the corner areas of the culture container, significantly improving cell collection efficiency. The elbow is made of elastic silicone, which can be bent and placed in traditional packaging materials during packaging, avoiding breakage caused by rigid structures and reducing transportation loss by more than 80%. In addition, the pipette body is made of rigid plastic support instead of traditional glass, preventing it from being squeezed and broken during transportation. To strengthen the connection between the rigid plastic tube body 1 and the elbow 14, an embedding groove 13 is opened on the inner wall of the sleeve 11 at the upper end of the elbow 14 to perfectly accommodate the embedding block 10 connected to one end of the connecting tube 7. The connecting tube 7 is inserted into the sleeve 11, and the embedding block 10 is locked into the embedding groove 13.

[0018] Working principle: First, the staff squeezes medical glue into the glue filling tank 8, then inserts the connecting tube 7 into the sleeve tube 11, and the embedding block 10 is inserted into the embedding groove 13 to complete the connection between the rigid plastic tube body 1 and the elbow 14. When pipetting is required, the user holds the rigid plastic tube body 1 and inserts the suction ball into the suction ball socket 2. The fitting slope 3 set on the inner wall of the suction ball socket 2 has the same curvature as the suction ball surface, perfectly fitting the suction ball surface and strengthening the seal between the suction ball and the rigid plastic tube body 1.

[0019] In summary, this invention improves the original straight pipette tip by replacing it with a detachable silicone elbow 14, which not only maintains the length advantage of traditional pipettes but also utilizes the elbow 14 design to achieve effective blowing and agitation of the corner areas of the culture container, significantly improving cell collection efficiency.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible elbow pipette for cell culture, comprising a rigid plastic tube body (1), wherein a connecting tube (7) is installed at the lower end of the rigid plastic tube body (1), and the connecting tube (7) is integrally formed with the rigid plastic tube body (1); Its features are: It also includes an embedding block (10), which is installed on the end of the connecting pipe (7) away from the rigid plastic pipe body (1). The rigid plastic pipe body (1) has a sleeve (11) installed at the end near the connecting pipe (7). An embedding groove (13) is provided on the inner wall of the sleeve (11). The embedding block (10) is stuck in the embedding groove (13). An elbow (14) is installed at the lower end of the sleeve (11). The elbow (14) and the sleeve (11) are integrally set. A suction ball inlet (2) is provided at the upper end of the rigid plastic pipe body (1).

2. The flexible elbow pipette for cell culture according to claim 1, characterized in that: The inner wall of the suction ball inlet (2) is equipped with a fitting slope (3), which is integrally formed with the rigid plastic tube body (1).

3. The flexible elbow pipette for cell culture according to claim 1, characterized in that: The outer surface of the rigid plastic tube (1) is provided with a scale (5), and the scale (5) is integrally provided with the rigid plastic tube (1).

4. The flexible elbow pipette for cell culture according to claim 1, characterized in that: The rigid plastic tube (1) has anti-slip patterns (4) on both sides of its outer surface, and the anti-slip patterns (4) are integrally formed with the rigid plastic tube (1).

5. A flexible elbow pipette for cell culture according to claim 1, characterized in that: The connecting pipe (7) has a first drain port (9) at the end near the embedded block (10), and the first drain port (9) and the connecting pipe (7) are integrally formed.

6. A flexible elbow pipette for cell culture according to claim 5, characterized in that: The rigid plastic tube (1) has a baffle plate (6) installed on one end near the connecting tube (7).

7. A flexible elbow pipette for cell culture according to claim 6, characterized in that: An adhesive filling groove (8) is provided between the adhesive baffle (6) and the connecting pipe (7).

8. A flexible elbow pipette for cell culture according to claim 1, characterized in that: The sleeve (11) has a second drain port (12) at the end away from the elbow (14).

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