Centrifugal tube suitable for cell precipitation extraction

By designing the centrifuge tube as a detachable two-part structure, the problem of sample adhesion and transfer in existing 12ml centrifuge tubes is solved, achieving more efficient sample extraction and lower risk of contamination.

CN223921403UActive Publication Date: 2026-02-17NINGBO CLINICAL PATHOLOGICAL DIAGNOSIS CENT
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Patent Information

Application Number
CN202520386768.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-17
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The existing 12ml centrifuge tubes have small openings and long depths, which makes it easy for samples to adhere to the tube walls or remain at the bottom of the tube during extraction, affecting subsequent processes. Furthermore, sample transfer operations are difficult to integrate into the existing workflow, posing a risk of contamination.

Method used

The centrifuge tubes are designed as detachable upper and lower parts connected by a fixing mechanism, allowing the upper and lower tubes to be easily separated, reducing extraction depth and simplifying the sample retrieval process.

Benefits of technology

It improves the integrity and efficiency of sample extraction, reduces sample loss, lowers the risk of contamination, and does not require changes to existing workflows.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cell extraction, and provides a centrifugal tube suitable for cell precipitation extraction, which comprises a first centrifugal tube, a second centrifugal tube and a fixing mechanism, the first centrifugal tube is detachably connected with the second centrifugal tube through the fixing mechanism, and scale marks are carved on the outer side walls of the first centrifugal tube and the second centrifugal tube; the fixing mechanism comprises a first connecting block and a second connecting block, the first connecting block is mounted on the first centrifugal tube, the second connecting block is mounted on the second centrifugal tube, and a plurality of limiting pieces are mounted at the top of the second connecting block. The centrifugal tube has the beneficial effects that the centrifugal tube is divided into two parts, namely the upper tube body and the lower tube body, and the two parts are detachably connected by adopting the fixing mechanism, so that the centrifugal tube can be easily assembled and disassembled, and the upper tube body can be slightly rotated to be separated from the lower tube body in cell precipitation extraction work, so that the extraction depth is reduced, and the extraction efficiency is improved. The bottom sediment can be more easily and completely taken out, and the cell sediment extraction work is facilitated.
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Description

Technical Field

[0001] This utility model relates to the technical field of cell extraction, specifically to a centrifuge tube suitable for cell precipitation extraction. Background Technology

[0002] With the increasing clinical demand for cell blocks, optimizing the extraction process for preparing these blocks is becoming increasingly important. The basic steps before and after extraction are as follows: the liquid-based sample containing the specimen to be tested is typically first stored in a 50ml centrifuge tube for transport. Upon receipt, a series of pretreatment procedures are performed, and then the processed sample is transferred to a 12ml centrifuge tube for instrumentation, sampling, staining, and slide reading. After diagnosis, a decision is made on whether to further prepare cell blocks. Therefore, the successful extraction of cell samples from the 12ml centrifuge tube is crucial for producing cell blocks containing a sufficient quantity of viable cells.

[0003] However, the current 12ml centrifuge tubes have small openings and long depths, making it easy for samples to adhere to the tube walls or remain at the bottom during extraction, leading to sample loss and affecting subsequent processes. Furthermore, implementing sample transfer operations would not be able to be integrated into the existing workflow and would introduce additional contamination risks.

[0004] Therefore, a centrifuge tube suitable for cell precipitation extraction is proposed to address the above problems. Utility Model Content

[0005] This invention proposes a centrifuge tube suitable for cell precipitation extraction. By dividing the centrifuge tube into two parts, namely an upper tube and a lower tube, and connecting the two parts with a fixing mechanism for easy assembly and disassembly, the centrifuge tube can be easily assembled and disassembled. During cell precipitation extraction, the upper tube can be slightly rotated to separate it from the lower tube, thereby reducing the extraction depth and making it easier to completely remove the bottom precipitate, which is beneficial to the cell precipitation extraction process.

[0006] Therefore, the technical solution adopted is as follows:

[0007] A centrifuge tube suitable for cell precipitation extraction includes a first centrifuge tube, a second centrifuge tube, and a fixing mechanism. The first centrifuge tube is detachably connected to the second centrifuge tube through the fixing mechanism. Graduation lines are engraved on the outer walls of both the first centrifuge tube and the second centrifuge tube.

[0008] The fixing mechanism includes a first connecting block and a second connecting block. The first connecting block is installed on the first centrifuge tube, and the second connecting block is installed on the second centrifuge tube. The top of the second connecting block is equipped with multiple limiting members, and the bottom of the first connecting block is provided with multiple locking grooves that are adapted to the limiting members.

[0009] Furthermore, the first centrifuge tube includes an upper tube body, which is hollow.

[0010] Furthermore, the second centrifuge tube includes a lower tube body, the end of which is provided with a tapered portion.

[0011] Furthermore, the first connecting block is installed at the end of the upper pipe body, and the second connecting block is installed at the end of the lower pipe body, with the first connecting block and the second connecting block abutting against each other.

[0012] Furthermore, the limiting component includes a base, an arc-shaped block is mounted on the top of the base, the arc-shaped block is arc-shaped, the locking groove includes a positioning groove and a limiting groove communicating with the positioning groove, the limiting groove is adapted to the arc-shaped block, and the cross-section of the arc-shaped block matches the cross-section of the positioning groove.

[0013] Furthermore, the top of the arc-shaped block is provided with multiple evenly distributed anti-slip ridges.

[0014] Furthermore, both the first connecting block and the second connecting block have notches.

[0015] The working principle and beneficial effects of this application are as follows:

[0016] By dividing the centrifuge tube into two parts, namely the upper tube and the lower tube, and connecting the two parts with a detachable fixing mechanism, the centrifuge tube can be easily assembled and disassembled. During cell precipitation extraction, the upper tube can be slightly rotated to separate it from the lower tube, thereby reducing the extraction depth and making it easier to completely remove the bottom precipitate, which is beneficial to the cell precipitation extraction process. Attached Figure Description

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2 This is a schematic diagram of the exploded structure of this application;

[0020] Figure 3 This is a first structural schematic diagram of the fixing mechanism described in this application;

[0021] Figure 4 This is a schematic diagram of the second structure of the fixing mechanism described in this application;

[0022] Figure 5 This is a cross-sectional view of the first connecting block in this application;

[0023] Figure 6 This is a schematic diagram of the structure of the limiting component described in this application.

[0024] In the diagram: 1. First centrifuge tube; 11. Upper tube body; 2. Second centrifuge tube; 21. Lower tube body; 22. Conical part; 3. Fixing mechanism; 31. First connecting block; 32. Second connecting block; 33. Limiting component; 331. Base; 332. Arc-shaped block; 333. Anti-slip ridge; 34. Positioning groove; 35. Limiting groove; 4. Scale line. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1-6 As shown, a centrifuge tube suitable for cell precipitation extraction includes a first centrifuge tube 1, a second centrifuge tube 2 and a fixing mechanism 3. The first centrifuge tube 1 is detachably connected to the second centrifuge tube 2 through the fixing mechanism 3. Graduation lines 4 are engraved on the outer walls of both the first centrifuge tube 1 and the second centrifuge tube 2.

[0027] The fixing mechanism 3 includes a first connecting block 31 and a second connecting block 32. The first connecting block 31 is installed on the first centrifuge tube 1 and fixed to the first centrifuge tube 1. The second connecting block 32 is installed on the second centrifuge tube 2 and fixed to the second centrifuge tube 2. A plurality of limiting members 33 are installed on the top of the second connecting block 32, and a plurality of locking grooves adapted to the limiting members 33 are opened at the bottom of the first connecting block 31.

[0028] In this embodiment, the first centrifuge tube 1 and the second centrifuge tube 2 are detachably connected by the fixing mechanism 3, dividing the centrifuge tube into upper and lower parts. This design allows the operator to easily separate the first centrifuge tube 1 from the second centrifuge tube 2, which is equivalent to removing the upper part of the centrifuge tube, thereby reducing the extraction depth and making it easier to completely remove the bottom precipitate, which is beneficial to the cell precipitation extraction work. This device can be integrated into the existing laboratory workflow without modifying the existing equipment or steps.

[0029] Among them, the fixing mechanism 3 is located at one-third of the total length from the bottom of the centrifuge tube upwards to the tube opening.

[0030] It should be noted that the connection surface between the first centrifuge tube 1 and the second centrifuge tube 2 should be smooth and flat to reduce gaps and prevent cell residue.

[0031] like Figure 2As shown, the first centrifuge tube 1 includes an upper tube body 11, which is hollow.

[0032] like Figures 1-2 As shown, the second centrifuge tube 2 includes a lower tube body 21, and a tapered portion 22 is provided at the end of the lower tube body 21.

[0033] In this embodiment, by providing a conical portion 22 at the bottom of the second centrifuge tube 2, which is conical in shape, it is beneficial to separate the precipitate.

[0034] like Figures 3-5 As shown, the first connecting block 31 is installed at the end of the upper pipe body 11, and the second connecting block 32 is installed at the end of the lower pipe body 21. The first connecting block 31 and the second connecting block 32 abut against each other. The limiting member 33 includes a base 331, and an arc-shaped block 332 is installed on the top of the base 331. The arc-shaped block 332 is arc-shaped. The locking groove includes a positioning groove 34 and a limiting groove 35 connected to the positioning groove 34. The limiting groove 35 is adapted to the arc-shaped block 332. The cross section of the arc-shaped block 332 matches the cross section of the positioning groove 34. When the upper pipe body 11 and the lower pipe body 21 are connected, the arc-shaped block 332 can be just inserted into the positioning groove 34.

[0035] In this embodiment, the first connecting block 31 is installed on the upper tube 11, and the second connecting block 32 is installed on the lower tube 21. The upper tube 11 and the lower tube 21 can be connected, and the limiting member 33 on the second connecting block 32 can be inserted into the locking groove. At this time, the base 331 and the arc-shaped block 332 are both located in the positioning groove 34. The upper tube 11 can be rotated at a certain angle to make the arc-shaped block 332 inserted into the limiting groove 35, thereby achieving the purpose of fixing the upper tube 11 and the lower tube 21 and completing the assembly of the centrifuge tube. In addition, the upper tube 11 can be slightly rotated to make the arc-shaped block 332 slide out of the limiting groove 35 and re-enter the positioning groove 34, separating it from the lower tube 21, thereby reducing the extraction depth and making it easier to completely remove the bottom sediment. The assembly and disassembly of the centrifuge tube can be easily realized through the fixed mechanism 3.

[0036] like Figure 6 As shown, the top of the arc-shaped block 332 is provided with multiple evenly distributed anti-slip ridges 333.

[0037] In this embodiment, the anti-slip protrusions 333 are used to increase the friction between the arc-shaped block 332 and the limiting groove 35, so that the arc-shaped block 332 is not easily displaced in the limiting groove 35, and the assembled centrifuge tube can remain stable and undeformed under the pressure of high centrifugal force.

[0038] like Figures 1-2 As shown, both the first connecting block 31 and the second connecting block 32 have notches, which are provided to reserve space for the scale line 4.

[0039] Working principle:

[0040] The upper tube 11 and the lower tube 21 can be connected, and the limiting member 33 on the second connecting block 32 can be inserted into the locking groove. At this time, the base 331 and the arc block 332 are both located in the positioning groove 34. The upper tube 11 can be rotated at a certain angle so that the arc block 332 can be inserted into the limiting groove 35, thereby achieving the purpose of fixing the upper tube 11 and the lower tube 21 and completing the assembly of the centrifuge tube. In addition, the upper tube 11 can be slightly rotated to separate it from the lower tube 21, thereby reducing the extraction depth and making it easier to completely remove the bottom sediment.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A centrifuge tube suitable for cell pellet extraction, comprising a first centrifuge tube (1), a second centrifuge tube (2) and a fixation mechanism (3), characterized in that: The first centrifuge tube (1) is detachably connected to the second centrifuge tube (2) through the fixing mechanism (3), and scale lines (4) are engraved on the outer walls of both the first centrifuge tube (1) and the second centrifuge tube (2); The fixing mechanism (3) includes a first connecting block (31) and a second connecting block (32). The first connecting block (31) is installed on the first centrifuge tube (1), and the second connecting block (32) is installed on the second centrifuge tube (2). The top of the second connecting block (32) is equipped with a plurality of limiting members (33), and the bottom of the first connecting block (31) is provided with a plurality of locking grooves that are adapted to the limiting members (33).

2. The centrifuge tube suitable for cell pellet extraction according to claim 1, wherein, The first centrifuge tube (1) includes an upper tube body (11), which is hollow.

3. The centrifuge tube suitable for cell pellet extraction according to claim 1, wherein, The second centrifuge tube (2) includes a lower tube body (21), and a tapered portion (22) is provided at the end of the lower tube body (21).

4. The centrifuge tube suitable for cell pellet extraction according to claim 1, wherein, The first connecting block (31) is installed at the end of the upper pipe body (11), and the second connecting block (32) is installed at the end of the lower pipe body (21). The first connecting block (31) and the second connecting block (32) abut against each other.

5. The centrifuge tube suitable for cell pellet extraction according to claim 1, wherein, The limiting member (33) includes a base (331), and an arc-shaped block (332) is mounted on the top of the base (331). The arc-shaped block (332) is arc-shaped. The locking groove includes a positioning groove (34) and a limiting groove (35) that communicates with the positioning groove (34). The limiting groove (35) is adapted to the arc-shaped block (332), and the cross-section of the arc-shaped block (332) matches the cross-section of the positioning groove (34).

6. A centrifuge tube suitable for cell pellet extraction according to claim 5, wherein, The top of the arc-shaped block (332) is provided with multiple uniformly distributed anti-slip ridges (333).

7. A centrifuge tube suitable for cell precipitation extraction according to claim 1, characterized in that, Both the first connecting block (31) and the second connecting block (32) have notches.