Multifunctional sampling tube for in-vitro diagnostics

Abstract

The utility model relates to medical instrument technical field discloses a kind of multifunctional sampling tubes for in-vitro diagnosis, the sampling tube includes tube body, with the sampling component of breakable swab, the sampling nozzle integrally formed in the bottom of tube body and detachable lower cover. Its core is that fixedly arranged on the side wall of tube body is press component, the component includes rubber mould with the side wall of tube body abut, and the elastic deformation of tube body can be made by extruding rubber mould through press component, to discharge internal liquid from sampling nozzle stably. The utility model highly integrates the collection, storage and accurate drop function of sample, without external tools such as pipette when operating, significantly simplify detection process, avoid cross-contamination risk fundamentally, greatly improve the safety, convenience and efficiency of operation, especially suitable for instant detection scene.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a multifunctional sampling tube for in vitro diagnostics. Background Technology

[0002] In in vitro diagnostics, especially in the field of pathogen nucleic acid or antigen detection, the first step is usually to collect biological samples from patients using sampling swabs, such as throat or nasal swabs. After collection, the routine procedure is to place the swab head with the sample into a sampling tube containing a virus preservation solution, then break the swab stick and tighten the tube cap to seal it for subsequent transportation and testing. This process can effectively complete the collection and preservation of samples.

[0003] When it is necessary to test the sample inside the tube, the tester must first unscrew the tube cap, and then use a precision pipette or other pipette to insert into the tube to draw a certain amount of sample mixture, and then carefully drop it onto the test reagent card or reaction well.

[0004] However, this series of separation procedures has inherent shortcomings. First, the sample transfer process requires opening the sealed sampling tube twice, which not only increases the number of steps but also significantly increases the risk of cross-contamination of the sample by the external environment. At the same time, the aerosols that may be generated also pose a potential threat to the safety of the testing personnel. Second, the process is forced to rely on external equipment such as pipettes, which not only increases the hardware cost of the test but also requires professional skills from the operators, limiting its ease of application in rapid, on-site (POCT) or resource-limited environments. The entire process is inefficient due to the large number of tools and steps. To address these issues, a multifunctional sampling tube for in vitro diagnostics is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multifunctional sampling tube for in vitro diagnostics, which aims to improve the problems of existing in vitro diagnostic sampling tubes, such as limited functionality, cumbersome operation steps, the need for external tools such as pipettes for sample transfer, and the risk of cross-contamination.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a multifunctional sampling tube for in vitro diagnostics, comprising: a tube body, a sampling component disposed on the upper part of the tube body, a sampling nozzle integrally formed on the bottom of the tube body, a pressing component disposed on the side wall of the tube body, and a lower cover threadedly connected to the sampling nozzle.

[0007] The pressing component includes a rubber mold that abuts against the side wall of the tube. The rubber mold can squeeze the tube under external force to cause it to undergo elastic deformation.

[0008] Furthermore, the sampling component is threadedly connected to the upper part of the tube body via its upper cover; the pressing component is fixedly disposed on the side wall of the tube body for applying external pressure to the tube body; and the lower cover is detachably threadedly connected to the end of the sampling nozzle for sealing.

[0009] Preferably, the pressing assembly further includes a housing disposed outside the rubber mold and a pressing block movable within the housing to press the rubber mold.

[0010] Preferably, the upper cover of the sampling component has a rubber ring inside, which provides a reliable seal when the upper cover is tightened with the tube body.

[0011] Preferably, the lower cover has a sealing ball inside, which is used to block the outlet of the sampling nozzle when the lower cover is tightened with the sampling nozzle, so as to provide double sealing protection.

[0012] Preferably, the outer peripheral surface of the top cover is integrally formed with several levers to increase rotational friction, so as to facilitate opening and closing.

[0013] Preferably, an annular limiting ring is provided on the outer wall of the tube body below the external thread at its upper end, to provide a limit for tightening the upper cover.

[0014] Preferably, the tube is made of a transparent or translucent material, and its outer wall is printed with scale lines to facilitate observation of the internal liquid volume.

[0015] Preferably, the rubber mold is integrally formed with the sidewall of the tube body to simplify the structure and improve the sealing performance.

[0016] This utility model has the following beneficial effects: 1. In this utility model, the functions of sample collection, preservation, transfer and quantitative addition are highly integrated into the same tube, which significantly simplifies the operation process of in vitro diagnostics, reduces the dependence on external auxiliary tools such as pipettes, improves the overall detection efficiency, and reduces the professional skill requirements of operators.

[0017] 2. In this utility model, through the integrated closed design, the entire process of sample collection and final drop is completed inside the tube, which effectively avoids cross-contamination that may be caused when the sample is transferred between different containers. At the same time, it also minimizes the risk of contact between operators and potential pathogens, thereby improving the biosafety of the operation.

[0018] 3. This invention features a unique side-wall pressing component that dispenses sample solution by squeezing the elastic tube wall, thus giving the sampling tube the function of a dropper. Operators can conveniently and accurately control the amount of sample solution added by adjusting the pressing pressure, meeting the precise sample volume requirements of different testing reagents.

[0019] 4. The present invention features an ingenious structural design. By setting a lever on the upper cover, it facilitates the opening operation in actual working scenarios such as wearing gloves or having slippery hands. By setting a rubber ring inside the upper cover and a sealing ball inside the lower cover, a double reliable sealing system is formed, which ensures the integrity and airtightness of the sample during transportation and storage, and effectively prevents the leakage of the sample. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a multifunctional sampling tube for in vitro diagnostics proposed in this utility model; Figure 2 This is a schematic diagram of the pressing assembly of a multifunctional sampling tube for in vitro diagnostics proposed in this utility model; Figure 3 This is a schematic diagram of the sampling assembly of a multifunctional sampling tube for in vitro diagnostics proposed in this utility model; Figure 4 This is a cross-sectional schematic diagram of the tube body of a multifunctional sampling tube for in vitro diagnostics proposed in this utility model; Figure 5 This is a schematic diagram of the lower cover of a multifunctional sampling tube for in vitro diagnostics proposed in this utility model.

[0021] Legend: 1. Tube body; 2. Pressing assembly; 201. Pressing block; 202. Outer shell; 203. Rubber mold; 3. Sampling nozzle; 4. Sampling assembly; 401. Top cover; 402. Swab rod; 403. Swab head; 404. Break point; 5. Bottom cover; 6. Notch; 7. External thread; 8. Limiting ring; 9. Paddle plate; 10. Scale line; 11. Rubber ring; 12. Internal thread one; 13. Sealing ball; 14. Internal thread two. Detailed Implementation

[0022] 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.

[0023] Please refer to Figures 1 to 5This utility model provides a multifunctional sampling tube for in vitro diagnostics, which aims to solve the problems of single function, cumbersome operation steps, and easy cross-contamination during sample transfer in the prior art.

[0024] like Figures 1 to 5 As shown, the multifunctional sampling tube for in vitro diagnostics includes a tube body 1 and a sampling component 4 disposed on the upper part of the tube body 1. The tube body 1 has a hollow structure, and its upper outer wall is machined with an external thread 7. Below the external thread 7, an annular limiting ring 8 is integrally formed. A notch 6 is provided at the edge of the upper opening of the tube body 1. The sampling component 4 includes a top cover 401 and a swab fixedly connected to the top cover 401. The top cover 401 has an internal thread 12, which is screwed into the external thread 7 at the upper end of the tube body 1. An internal rubber ring 11 is also provided. When the upper cover 401 is tightened to the tube body 1 until its lower end face abuts against the limiting ring 8, the rubber ring 11 is compressed and tightly adheres to the end face of the tube body 1. Multiple paddle plates 9 are integrally formed on the outer circumferential surface of the upper cover 401. The swab connected to the upper cover 401 includes a swab rod 402 and a swab head 403 set at the end of the swab rod 402. A break point 404 is provided on the rod body of the swab rod 402. The structure of the break point 404 is a ring groove, and its position corresponds to the notch 6 on the tube body 1.

[0025] As a preferred embodiment, in order to improve production efficiency and sealing reliability, the rubber mold 203 and the side wall of the tube body 1 are manufactured by integral injection molding to form an integral structure.

[0026] The core principle of this multifunctional sampling tube for in vitro diagnostics is to seamlessly integrate sample collection and sealing with quantitative dripping. During the collection phase, the upper cover 401 with the lever 9 is rotated to open the tube. After the swab head 403 collects the sample, the break point 404 on the swab rod 402 is engaged with the notch 6 of the tube body 1 to achieve contactless breakage. The swab head 403 falls into the tube body 1 and finally engages with the external thread 7 of the tube body 1 through the internal thread 12 of the upper cover 401. The final axial seal is provided by the rubber ring 11. The whole process is fast and airtight.

[0027] During the sample dispensing stage, the physical principle is based on applying external pressure to a sealed container to expel the internal liquid. When the user unscrews the lower cap 5, force is applied to the pressure block 201 in the pressing component 2. This force is transmitted to the rubber mold 203, causing the rubber mold 203 to squeeze the elastic tube 1 sidewall inward, instantly reducing the internal volume of the tube 1. According to the principle of fluid pressure, the internal pressure increases accordingly, thereby precisely squeezing out the liquid sample in the tube 1 through the only channel at the bottom, namely the sampling nozzle 3. When the external force is removed, the tube 1 and the rubber mold 203 return to their original state due to their own elasticity. The entire dispensing process does not require the use of other tools, and the dispensing dosage can be intuitively controlled by the pressure applied.

[0028] Working principle: When medical staff use sampling component 4 for sampling, they first need to open it through the top cover 401. The lever 9 ensures that medical staff can easily open it even with hand lubrication such as disinfectant gel. Then, they can sample through the swab head 403. After sampling, the swab head 403 is placed inside the tube body 1. Then, the break point 404 of the swab rod 402 is locked at the notch 6, which can easily break the swab rod 402. The swab head 403 will then fall directly into the tube body 1 and come into contact with the preservation solution. Then, the top cover 401 is tightened directly through the internal thread 12 and the external thread 7. When the top cover 401 is in contact with the limiting ring 8, it means that it is tightened. The rubber ring 11 inside the top cover 401 can further prevent the internal sample from leaking out.

[0029] When the collected sample needs to be tested, simply unscrew the lower cover 5, then align the sampling nozzle 3 with the testing equipment. Pressing the component 2 will allow the sample liquid to be discharged from the sampling nozzle 3. Medical personnel can press the pressure block 201 in the outer shell 202, which will then squeeze the inside of the tube 1 through the rubber mold 203, thereby increasing the air pressure inside the tube 1 and allowing the sample liquid to be discharged from the sampling nozzle 3. The amount of sample liquid discharged can be controlled according to the pressure applied. The rubber mold 203 can also prevent the internal sample liquid from leaking out from the pressing component 2. After sampling, the internal thread 14 of the lower cover 5 needs to be tightened again with the sampling nozzle 3. The sealing ball 13 in the lower cover 5 can prevent the internal sample liquid from leaking out. Medical personnel can observe the amount of internal sample liquid through the scale line 10.

[0030] The bottom of the tube body 1 is integrally provided with a downwardly extending sampling nozzle 3. The outer wall of the sampling nozzle 3 is machined with a threaded structure for cooperating with the lower cover 5. The lower cover 5 is machined with an internal thread 14, and a sealing ball 13 is also accommodated in its internal cavity. The lower cover 5 is screwed into the threaded structure of the sampling nozzle 3 through its internal thread 14 to achieve a detachable sealing connection. In the tightened state, the sealing ball 13 seals the outlet of the sampling nozzle 3.

[0031] A pressing component 2 is fixedly connected to the side wall of the tube body 1. The tube body 1 is preferably made of a transparent or semi-transparent material with a certain elasticity. Scale lines 10 are also provided on its outer wall. The pressing component 2 includes a shell 202, a pressing block 201, and a rubber mold 203. The shell 202 is fixed to the outside of the side wall of the tube body 1. The pressing block 201 is slidably disposed inside the shell 202. The rubber mold 203 is an elastic body disposed between the pressing block 201 and the side wall of the tube body 1, and is sealed and fitted to the side wall of the tube body 1. In one embodiment, the rubber mold 203 and the side wall of the tube body 1 can be integrally formed. When an external force is applied to the pressing block 201, the pressing block 201 slides towards the tube body 1, thereby squeezing the rubber mold 203. After being compressed, the rubber mold 203 undergoes elastic deformation and squeezes the tube wall of the tube body 1 inward, causing local deformation of the tube body 1 to reduce its internal volume.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional sampling tube for in vitro diagnostics, comprising: tube body(1); A sampling assembly (4) is disposed on the upper part of the tube body (1). The sampling assembly (4) includes an upper cover (401) threadedly connected to the upper end of the tube body (1) by an internal thread (12) and an external thread (7), and a swab connected to the upper cover (401). The swab includes a swab rod (402) with a break (404) and a swab head (403). The upper part of the tube (1) is provided with a notch (6) for breaking the swab rod (402) at the break point (404). Its features are, The bottom of the tube (1) is integrally provided with a sampling nozzle (3). The side wall of the tube (1) is provided with a pressing component (2), which includes a rubber mold (203) that abuts against the side wall of the tube (1). The rubber mold (203) can squeeze the tube (1) under the action of external force to deform it. It also includes a lower cover (5) that is threadedly connected to the sampling nozzle (3) via an internal thread two (14).

2. The multifunctional sampling tube for in vitro diagnostics according to claim 1, characterized in that: The pressing assembly (2) further includes a housing (202) disposed outside the rubber mold (203) and a pressing block (201) movable within the housing (202) to press the rubber mold (203).

3. The multifunctional sampling tube for in vitro diagnostics according to claim 1, characterized in that: The upper cover (401) has a rubber ring (11) inside. When the upper cover (401) and the tube body (1) are screwed together, the rubber ring (11) abuts against the end face of the tube body (1) to form a seal.

4. The multifunctional sampling tube for in vitro diagnostics according to claim 1, characterized in that: The lower cover (5) is provided with a sealing ball (13) inside. When the lower cover (5) is screwed onto the sampling nozzle (3) by the thread, the sealing ball (13) is used to block the outlet of the sampling nozzle (3).

5. A multifunctional sampling tube for in vitro diagnostics according to claim 1, characterized in that: The outer peripheral surface of the top cover (401) is integrally formed with several baffles (9) for increasing friction.

6. A multifunctional sampling tube for in vitro diagnostics according to claim 1, characterized in that: A ring-shaped limiting ring (8) is provided on the outer wall of the tube body (1) below the external thread (7).

7. A multifunctional sampling tube for in vitro diagnostics according to claim 1, characterized in that: The tube (1) is transparent or semi-transparent, and its outer wall is printed with scale lines (10).

8. A multifunctional sampling tube for in vitro diagnostics according to claim 1, characterized in that: The rubber mold (203) is integrally formed with the side wall of the tube (1).

Images