Cell separation tube

Abstract

The utility model discloses a cell separation tube, which relates to the field of experimental instruments, and comprises a tube body, an inner thread, an outer thread and an inner thread, an external thread is arranged in the tube cover, and the external thread is matched with the internal thread of the tube body, so that the tube body and the tube cover are assembled in a thread dismounting manner; the two ends of the flexible connecting piece are connected with the pipe body and the pipe cover respectively, so that the pipe body and the pipe cover form a complete whole. According to the utility model, the existing plugging design is changed into a threaded connection mode, the pipe body and the pipe cover are connected and sealed through threaded connection, the pipe body and the pipe cover can be completely assembled by using a relatively large force through threaded connection, the dismounting is labor-saving, the problem that the sealing effect is poor or the pipe cover is difficult to pull out due to too small and too large plugging force is avoided, and the service life of the pipe body and the pipe cover is prolonged. And the convenience and reliability of connection between the tube body and the tube cover are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of experimental instruments, and in particular to a cell separation tube. Background Technology

[0002] In the cell preparation process, cell culture and centrifugation need to be carried out in culture flasks and centrifuge tubes, respectively. Currently, when cells are harvested after culturing in the culture medium, they are transferred from the culture flasks to centrifuge tubes.

[0003] Existing patent CN209412228U discloses a cell culture centrifuge tube, comprising a centrifuge tube body with a tubular structure open at one end, a cap assembly, and a long, flexible connector. The cap assembly includes an elastic cap, which comprises a plate-shaped cap and a snap-fit ​​structure fixed to one side of the cap. The snap-fit ​​structure can be received at one end of the centrifuge tube opening and abuts against the inner wall of the centrifuge tube body. The two ends of the flexible connector are fixedly connected to the cap assembly and the centrifuge tube body, respectively. Cell culture and centrifugation can both be completed within the cell culture centrifuge tube, thus eliminating the step of transferring culture medium between cell culture and centrifugation, shortening the cell preparation time.

[0004] The centrifuge tubes described above are sealed by snapping the caps onto the openings of the centrifuge tubes. However, the snapping method makes it difficult to control the force applied. When the pressure is too light, the caps do not make stable contact with the centrifuge tubes, resulting in a poor seal and making it easy for outside air to enter or for liquid inside the tubes to leak out. When the pressure is too heavy, the caps are too tightly fitted to the centrifuge tubes, making them difficult to remove when taking out the liquid. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cell separation tube to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a cell separation tube, comprising:

[0007] The tube body has an internal thread at the opening at the top;

[0008] The pipe cap has an internal external thread that matches the internal thread of the pipe body, allowing for threaded disassembly and assembly between the pipe body and the pipe cap.

[0009] The flexible connector is connected at both ends to the pipe body and the pipe cap respectively, so that the pipe body and the pipe cap form a complete whole.

[0010] In one embodiment, the internal thread is provided on the top inner wall of the tube body, and an external thread post adapted to the internal thread is provided at the inner center of the tube cap.

[0011] In one embodiment, the external threaded post and the inner wall of the pipe cap form a gap with the same thickness as the pipe body, and a sealing gasket is provided in the gap.

[0012] In one embodiment, a convex hole is provided at the center of the top of the tube cap, and an I-shaped rotating connector is rotatably installed in the convex hole, with one end of the flexible connector connected to the rotating connector.

[0013] In one embodiment, the outer surface of the tube cap is provided with a plurality of anti-slip protrusions, which are evenly distributed along the outer circumference of the tube cap.

[0014] In one embodiment, the outer surface of the tube is provided with longitudinal graduation lines.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model modifies the existing plug-in design to a threaded connection. The threaded connection seals the connection between the tube body and the cap. The threaded connection allows for the complete assembly of the tube body and cap with less force, and disassembly is easier. It avoids the problems of poor sealing effect or difficulty in pulling out due to insufficient or excessive plugging and unplugging force, and greatly improves the convenience and reliability of the connection between the tube body and the cap. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the tube structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the pipe cap structure of this utility model.

[0020] Figure 4 This is a cross-sectional structural diagram of the pipe cap and pipe body in the connected state of this utility model.

[0021] The attached diagram is labeled as follows: 1. Pipe body; 11. Internal thread; 12. Scale line; 2. Pipe cap; 21. External thread post; 22. Sealing gasket; 23. Convex hole; 24. Rotating connector; 25. Anti-slip protrusion; 3. Flexible connector. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0023] This invention provides a cell separation tube, such as Figure 1-4As shown, it includes:

[0024] The tube body 1 has an internal thread 11 at the opening at its top;

[0025] The pipe cap 2 has an external thread inside, and the external thread is designed to match the internal thread 11 of the pipe body 1, so that the pipe body 1 and the pipe cap 2 can be disassembled and assembled by thread.

[0026] The flexible connector 3 is connected at both ends to the pipe body 1 and the pipe cover 2 respectively, so that the pipe body 1 and the pipe cover 2 form a complete whole.

[0027] The existing plug-in design is modified to a threaded connection. The connection between the tube body 1 and the tube cap 2 is sealed by the threaded connection. The threaded connection can use more force to fully assemble the tube body 1 and the tube cap 2, and disassembly is easier. It avoids the problems of poor sealing effect or difficulty in pulling out due to insufficient or excessive plugging and pulling force, and greatly improves the convenience and reliability of the connection between the tube body 1 and the tube cap 2.

[0028] Furthermore, in this embodiment, the internal thread 11 is provided on the top inner wall of the pipe body 1, and the inner center of the pipe cover 2 is provided with an external thread post 21 that is compatible with the internal thread 11. The outer wall of the pipe cover 2 is fitted onto the outer wall of the pipe body 1, and the external thread post 21 provided on the pipe cover 2 plugs the inner wall of the pipe body 1. The sealing design on both sides greatly improves the sealing performance of the connection between the pipe body 1 and the pipe cover 2.

[0029] Furthermore, in this embodiment, the external threaded post 21 and the inner wall of the pipe cap 2 form a gap with the same thickness as the pipe body 1. A sealing gasket 22 is provided in the gap. Under the double sealing effect of 21 and 2, the sealing gasket 22 is used to abut and seal the top surface of the pipe body 1, further improving the sealing effect of the pipe opening of the pipe body 1 and achieving triple sealing.

[0030] Furthermore, in this embodiment, a convex hole 23 is provided at the center of the top of the pipe cap 2, and an I-shaped rotating connector 24 is rotatably installed in the convex hole 23. One end of the flexible connector 3 is connected to the rotating connector 24. The rotating connector 24 is rotatably installed on the top of the pipe cap 2. By connecting the flexible connector 3 through the rotating connector 24, the pipe cap 2 can rotate freely when connected to the pipe body 1 without affecting the connection with the flexible connector 3, thus avoiding the twisting and deformation of the flexible connector 3.

[0031] Furthermore, in this embodiment, the outer surface of the pipe cover 2 is provided with a number of anti-slip protrusions 25, which are evenly arranged along the outer circumference of the pipe cover 2 to increase the contact friction between the operator's hand and the pipe cover 2.

[0032] Furthermore, in this embodiment, the outer surface of the tube body 1 is longitudinally provided with scale lines 12 for operators to observe the volume of liquid inside the tube body 1.

[0033] Several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A cell separation tube, characterized by, include: The tube body (1) has an internal thread (11) at the opening at its top. The pipe cap (2) has an external thread inside, and the external thread is designed to match the internal thread (11) of the pipe body (1), so that the pipe body (1) and the pipe cap (2) can be disassembled and assembled by thread. The flexible connector (3) is connected at both ends to the pipe body (1) and the pipe cap (2) respectively, so that the pipe body (1) and the pipe cap (2) form a complete whole; The internal thread (11) is provided on the top inner wall of the pipe body (1), and the inner center of the pipe cover (2) is provided with an external thread post (21) that is compatible with the internal thread (11). The external threaded post (21) and the inner wall of the tube cap (2) form a gap with the same thickness as the tube body (1), and a sealing gasket (22) is provided in the gap. A convex hole (23) is provided at the center of the top of the tube cap (2). An I-shaped rotating connector (24) is rotatably installed in the convex hole (23). One end of the flexible connector (3) is connected to the rotating connector (24).

2. A cell separation tube according to claim 1, wherein: The outer surface of the tube cap (2) is provided with a number of anti-slip protrusions (25), which are evenly arranged along the outer circumference of the tube cap (2).

3. The cell separation tube of claim 1, wherein: The outer surface of the tube (1) is longitudinally provided with scale lines (12).

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