Low-adsorption CSF collection and storage integrated device

Abstract

The utility model discloses a low-adsorption CSF collection and storage integrated device which comprises a tank body, the top of the tank body is in threaded connection with a cover plate, a test tube is placed in the center in the tank body, the top of the inner wall of the tank body is fixedly connected with an inner annular top plate, and the top of the inner wall of the cover plate is fixedly connected with an inner annular bottom plate. An annular sealing gasket is fixedly connected to the outer side of the bottom of the inner annular bottom plate, and two first sealing strips are fixedly connected to the position, close to the inner side, of the bottom of the inner annular bottom plate. According to the low-adsorption CSF collection and storage integrated device, the annular sealing gasket at the bottom of the inner annular bottom plate is tightly attached to the top of the tank body, so that a first layer of sealing is formed; meanwhile, two first sealing strips at the positions, close to the inner side, of the bottom of the inner annular bottom plate are tightly attached to a second sealing strip at the top of the inner annular top plate to form a second layer of sealing, the sealing performance of the device is greatly improved through the double-sealing design, leakage of the CSF sample is effectively prevented, and the purity and integrity of the sample are ensured.

Description

Technical Field

[0001] This utility model relates to the field of storage device technology, specifically to an integrated device for collecting and storing low-adsorption CSF. Background Technology

[0002] Ensuring the purity, integrity, and long-term stability of cerebrospinal fluid (CSF) samples is crucial during collection and storage.

[0003] Existing devices often use simple threaded connections or snap-fit ​​structures to connect the cover plate to the container. These designs are prone to poor sealing in practical applications. Since CSF samples are extremely sensitive to the external environment, any small leak can lead to sample contamination or evaporation, which in turn affects the accuracy and reliability of subsequent analyses. In addition, poor sealing may allow external air, microorganisms or other contaminants to enter the storage container, further increasing the risk of sample deterioration. Utility Model Content

[0004] The purpose of this invention is to provide an integrated device for collecting and storing low-adsorption CSF, in order to solve the problem mentioned in the background art that the existing devices often use simple threaded connections or snap-fit ​​structures in the connection design between the cover plate and the container. These designs are prone to poor sealing in practical applications. Since CSF samples are extremely sensitive to the external environment, any slight leakage may lead to sample contamination or evaporation, thereby affecting the accuracy and reliability of subsequent analysis. In addition, poor sealing may also allow external air, microorganisms or other contaminants to enter the storage container, further increasing the risk of sample deterioration.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated device for collecting and storing low-adsorption CSF, comprising a tank, a cover plate threaded to the top of the tank, a test tube placed in the center of the tank, an inner annular top plate fixedly connected to the top of the inner wall of the tank, an inner annular bottom plate fixedly connected to the top of the inner wall of the cover plate, an annular sealing gasket fixedly connected to the outer side of the bottom of the inner annular bottom plate, two sealing strips one fixedly connected to the inner side of the bottom of the inner annular bottom plate, an annular positioning groove formed on the outer side of the top of the inner annular top plate, an annular positioning plate fixedly connected to the outer side of the bottom of the inner annular bottom plate, the bottom of the annular positioning plate penetrating into the interior of the annular positioning groove and engaging with the annular positioning groove, and a sealing strip two fixedly connected to the inner side of the top of the inner annular top plate below the sealing strip one, the top of the sealing strip two being in close contact with the bottom of the sealing strip one.

[0006] Compared with the prior art, the beneficial effects of this utility model are:

[0007] This integrated low-adsorption CSF collection and storage device utilizes a dual-seal design. The first layer of seal is formed by the annular sealing gasket at the bottom of the inner annular base plate tightly adhering to the top of the tank. Simultaneously, two sealing strips on the innermost side of the bottom of the inner annular base plate and a second sealing strip on the top of the inner annular top plate form a second layer of seal. This double-seal design significantly enhances the device's sealing performance, effectively preventing CSF sample leakage and ensuring sample purity and integrity. The annular positioning plate at the bottom of the inner annular base plate engages with the annular positioning groove at the top of the inner annular top plate, enhancing the connection stability between the cover and the tank and further strengthening the sealing effect. This design avoids… To address the issue of inadequate sealing caused by loose simple threaded connections or snap-fit ​​structures, the double sealing structure of the annular sealing gasket, sealing strip one, and sealing strip two effectively isolates the risk of external air, microorganisms, or other contaminants entering the storage container. This ensures the quality of CSF samples during collection and storage, preventing sample deterioration. The movable block within the movable groove inside the inner annular top plate engages with the arc-shaped limiting groove on the inner wall of the annular positioning plate via an arc-shaped protrusion, enhancing the connection stability between the cover and the tank. Simultaneously, the design of the support rod and return spring allows the movable block to automatically reset when subjected to external force, maintaining the reliability of the snap-fit ​​structure. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This utility model Figure 1 A magnified view of part A in the diagram;

[0010] Figure 3 This is a cross-sectional view of the inner annular top plate of this utility model;

[0011] Figure 4 This is the main view of the structure of this utility model.

[0012] In the diagram: 1. Tank body; 2. Test tube; 3. Cover plate; 4. Bottom transparent gasket; 5. Buckle plate; 6. Sponge pad; 7. Inner annular top plate; 8. Inner annular bottom plate; 9. Sealing strip one; 10. Annular sealing gasket; 11. Annular positioning groove; 12. Movable groove; 13. Annular positioning plate; 14. Arc-shaped limiting groove; 15. Movable block; 16. Arc-shaped protrusion; 17. Sealing strip two; 18. Support groove; 19. Support rod; 20. Return spring. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-4 This utility model provides a technical solution: an integrated device for collecting and storing low-adsorption CSF, including a tank 1, a cover plate 3 threadedly connected to the top of the tank 1, a test tube 2 placed in the center of the tank 1, an inner annular top plate 7 fixedly connected to the top of the inner wall of the tank 1, an inner annular bottom plate 8 fixedly connected to the top of the inner wall of the cover plate 3, an annular sealing gasket 10 fixedly connected to the outer side of the bottom of the inner annular bottom plate 8, two sealing strips 9 fixedly connected to the inner side of the bottom of the inner annular bottom plate 8, an annular positioning groove 11 opened on the outer side of the top of the inner annular top plate 7, an annular positioning plate 13 fixedly connected to the outer side of the bottom of the inner annular bottom plate 8, the bottom of the annular positioning plate 13 penetrating into the interior of the annular positioning groove 11 and engaging with the annular positioning groove 11, and a sealing strip 17 fixedly connected to the inner side of the top of the inner annular top plate 7 below the sealing strip 9, the top of the sealing strip 17 being in close contact with the bottom of the sealing strip 9.

[0015] The bottom of the annular sealing gasket 10 is in close contact with the top of the tank body 1.

[0016] A bottom transparent pad 4 is fixedly connected to the bottom of the container 1, and a buckle plate 5 is fixedly connected to the center of the bottom of the cover plate 3. A sponge pad 6 is fixedly connected to the center of the bottom of the buckle plate 5, and the bottom of the sponge pad 6 is in contact with the top of the test tube 2.

[0017] The inner annular top plate 7 has several movable grooves 12 on the inner side corresponding to the annular positioning groove 11. Movable blocks 15 are slidably connected inside the movable grooves 12. The inner wall of the annular positioning plate 13 has several arc-shaped limiting grooves 14.

[0018] An arc-shaped protrusion 16 is fixedly connected to the center of one side of the movable block 15. The side of the arc-shaped protrusion 16 away from the movable block 15 extends into the interior of the arc-shaped limiting groove 14 and engages with the arc-shaped limiting groove 14.

[0019] A support groove 18 is provided at the center of the other side of the movable block 15. A support rod 19 is slidably connected inside the support groove 18. One side of the support rod 19 extends through to the outside of the support groove 18 and is fixedly connected to the inner wall of the movable groove 12.

[0020] A return spring 20 is sleeved on the outer side of the support rod 19, and the two sides of the return spring 20 are fixedly connected to the inner walls of the movable block 15 and the movable groove 12, respectively.

[0021] Working principle: When the cover plate 3 is screwed onto the top of the tank body 1, the inner annular bottom plate 8 descends accordingly, driving the annular positioning plate 13 into the annular positioning groove 11. As the annular positioning plate 13 descends, its inner wall gradually approaches the arc-shaped protrusion 16 on the movable block 15. When the arc-shaped protrusion 16 aligns with the arc-shaped limiting groove 14, due to the elastic force of the return spring 20, the movable block 15 moves towards the arc-shaped limiting groove 14 under the guidance of the support rod 19, and the arc-shaped protrusion 16 smoothly enters the arc-shaped limiting groove 14, achieving a snap-fit. At this time, the movable block 15 is fixed in the arc-shaped limiting groove 14 and cannot move freely. This step enhances the connection stability between the cover plate 3 and the tank body 1. In addition to the snap-fit ​​between the annular positioning plate 13 and the annular positioning groove 11, the snap-fit ​​between the movable block 15 and the arc-shaped limiting groove 14 provides an additional fixing point for the cover plate 3. This double fixing design significantly improves the fixing effect of the cover plate 3 and prevents the cover plate 3 from loosening due to vibration or external force. The fixing effect of the movable block 15 also indirectly enhances the tightness between the annular sealing gasket 10 and the top of the tank body 1, further improving the sealing performance of the device. This helps to prevent leakage and contamination of CSF samples and ensures the purity and integrity of the samples.

[0022] In summary, this integrated low-adsorption CSF collection and storage device forms a first layer of seal by having the annular sealing gasket 10 at the bottom of the inner annular bottom plate 8 tightly adhere to the top of the tank body 1; simultaneously, the two sealing strips 9 on the inner side of the bottom of the inner annular bottom plate 8 tightly adhere to the sealing strip 17 on the top of the inner annular top plate 7, forming a second layer of seal. This dual-seal design greatly improves the sealing performance of the device, effectively preventing CSF sample leakage and ensuring the purity and integrity of the sample. The annular positioning plate 13 at the bottom of the inner annular bottom plate 8 engages with the annular positioning groove 11 on the top of the inner annular top plate 7, which not only enhances the connection stability between the cover plate 3 and the tank body 1 but also further strengthens the sealing effect. This design avoids... To prevent sealing issues caused by loose simple threaded connections or snap-fit ​​structures, the double sealing structure of the annular sealing gasket 10, sealing strip 19, and sealing strip 2 17 effectively isolates the risk of external air, microorganisms, or other contaminants entering the storage container, thereby ensuring the quality of CSF samples during collection and storage and avoiding the possibility of sample deterioration. The movable block 15 in the movable groove 12 inside the inner annular top plate 7 is engaged with the arc-shaped limiting groove 14 on the inner wall of the annular positioning plate 13 through the arc-shaped protrusion 16, enhancing the connection stability between the cover plate 3 and the tank body 1. At the same time, the design of the support rod 19 and the return spring 20 enables the movable block 15 to automatically reset when subjected to external force, maintaining the reliability of the engagement structure.

[0023] 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.

[0024] 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. An integrated device for collecting and storing low-adsorption CSF, comprising a tank (1), characterized in that: The top of the tank (1) is threaded with a cover plate (3). A test tube (2) is placed in the center of the tank (1). An inner annular top plate (7) is fixedly connected to the top of the inner wall of the tank (1). An inner annular bottom plate (8) is fixedly connected to the top of the inner wall of the cover plate (3). An annular sealing gasket (10) is fixedly connected to the outer side of the bottom of the inner annular bottom plate (8). Two sealing strips (9) are fixedly connected to the inner side of the bottom of the inner annular bottom plate (8). The top of the inner annular top plate (7) is... An annular positioning groove (11) is provided on the outer side of the part. An annular positioning plate (13) is fixedly connected to the outer side of the bottom of the inner annular bottom plate (8). The bottom of the annular positioning plate (13) extends through the interior of the annular positioning groove (11) and engages with the annular positioning groove (11). A sealing strip (17) is fixedly connected to the inner side of the top of the inner annular top plate (7) below the sealing strip one (9). The top of the sealing strip two (17) is in close contact with the bottom of the sealing strip one (9).

2. The integrated device for collecting and storing low-adsorption CSF according to claim 1, characterized in that: The bottom of the annular sealing gasket (10) is in close contact with the top of the tank body (1).

3. The integrated device for collecting and storing low-adsorption CSF according to claim 1, characterized in that: The bottom of the container (1) is fixedly connected to a bottom transparent pad (4), and the center of the bottom of the cover plate (3) is fixedly connected to a buckle plate (5). The center of the bottom of the buckle plate (5) is fixedly connected to a sponge pad (6), and the bottom of the sponge pad (6) is in contact with the top of the test tube (2).

4. The integrated device for collecting and storing low-adsorption CSF according to claim 1, characterized in that: The inner annular top plate (7) has several movable grooves (12) on the inner side corresponding to the annular positioning groove (11). Movable blocks (15) are slidably connected inside the movable grooves (12). The inner wall of the annular positioning plate (13) has several arc-shaped limiting grooves (14).

5. The integrated device for collecting and storing low-adsorption CSF according to claim 4, characterized in that: An arc-shaped protrusion (16) is fixedly connected to the center of one side of the movable block (15). The side of the arc-shaped protrusion (16) away from the movable block (15) extends into the interior of the arc-shaped limiting groove (14) and engages with the arc-shaped limiting groove (14).

6. The integrated device for collecting and storing low-adsorption CSF according to claim 4, characterized in that: A support groove (18) is provided at the center of the other side of the movable block (15). A support rod (19) is slidably connected inside the support groove (18). One side of the support rod (19) extends through to the outside of the support groove (18) and is fixedly connected to the inner wall of the movable groove (12).

7. The integrated device for collecting and storing low-adsorption CSF according to claim 6, characterized in that: A return spring (20) is sleeved on the outside of the support rod (19), and the two sides of the return spring (20) are fixedly connected to the inner walls of the movable block (15) and the movable groove (12), respectively.

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