A cross-contamination-preventing traditional Chinese medicine detection sample bearing device

Abstract

The utility model belongs to traditional Chinese medicine detection auxiliary equipment technical field, especially for a kind of traditional Chinese medicine detection sample bearing device of preventing cross-contamination, and the sample containing cavity of uniform distribution is arranged in array on the bearing main body, and the inner wall of sample containing cavity is provided with annular step;Sealing assembly is arranged at the upper end port part of sample containing cavity, and sealing assembly includes sealing cover, elastic sealing gasket and exclusive sampling channel.The utility model, by independent sealing cavity and double-sealing structure, each sample is in independent sealing space, both avoid sample volatile cross diffusion, and prevent external contaminant from entering when sampling, block cross-contamination path from source, exclusive sampling channel cooperates one-way sealing valve, sampling tool does not need to contact the sealing structure of sample container outside or other sample, thoroughly avoid cross contact pollution in sampling process, leakage diversion structure can quickly collect leakage sample, avoid leakage diffusion to other sample containing cavity, further improve the reliability of anti-pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for traditional Chinese medicine testing, specifically a sample carrier device for traditional Chinese medicine testing that prevents cross-contamination. Background Technology

[0002] In the process of testing traditional Chinese medicine, multiple samples of traditional Chinese medicine need to be tested separately for component analysis, content determination and other tests. The sample carrier device is the core auxiliary equipment used to store the samples of traditional Chinese medicine to be tested (such as traditional Chinese medicine powder, extract and so on).

[0003] In existing technologies, most traditional Chinese medicine (TCM) testing sample carriers are simple porous tray structures that can only accommodate multiple samples. However, they have significant drawbacks: First, there is a lack of effective sealing and isolation structures between sample containers, allowing volatile substances from the samples to easily diffuse into each other, or allowing leaked samples to directly contaminate adjacent samples. Second, sampling requires opening the overall cover or the ordinary lid of a single sample container, making it easy for sampling tools to come into contact with other sample containers, or for airborne contaminants to enter the sample. Third, there is a lack of targeted leak-proof collection structures, allowing leaked samples to easily spread throughout the carrier, leading to cross-contamination of batches of samples and affecting the accuracy of the test results. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a sample carrier device for traditional Chinese medicine testing that prevents cross-contamination, thereby improving the accuracy of traditional Chinese medicine testing and solving the problems of sample volatilization and diffusion, leakage and contamination, and cross-contamination during sampling that are common in existing devices.

[0005] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A sample carrier device for preventing cross-contamination of traditional Chinese medicine testing includes a carrier body, which is a cuboid structure and integrally injection molded from polypropylene. The carrier body has a uniformly distributed array of sample receiving cavities, the inner diameter of each sample receiving cavity being adapted to the outer diameter of commonly used traditional Chinese medicine testing sample tubes. The inner wall of the sample receiving cavity is provided with annular steps for positioning the elastic sealing gasket and the sample container. The carrier body is provided with an independent marking groove, into which a label with sample information can be inserted to avoid confusion. The marking groove is set one-to-one with the sample receiving cavity, and the side wall of the carrier body is provided with anti-slip protrusions for easy hand operation. A sealing assembly is installed at the upper port of the sample receiving cavity, and each assembly is provided in a corresponding manner. The sealing assembly includes a sealing cap, an elastic sealing gasket, and a dedicated sampling channel. The elastic sealing gasket is embedded in the annular step to achieve a sealed fit between the sample container and the sample receiving cavity. The sealing cap is detachably connected to the top of the sample receiving cavity via threads, and the bottom of the sealing cap presses against the elastic sealing gasket to form a primary seal. The elastic sealing gasket is made of silicone and has an annular groove on its top surface. The bottom of the sealing cap has an annular protrusion that matches the annular groove. When the sealing cap is tightened to the top of the sample receiving cavity via threads, the annular protrusion presses against the elastic sealing gasket, achieving a tight seal between the sample container and the sample receiving cavity. After use, the sealing cap can be removed and the elastic sealing gasket can be taken out for cleaning, making it easy to reuse. The dedicated sampling channel is located in the middle of the sealing cover. Its inner diameter is adapted to the outer diameter of commonly used sampling needles. A one-way sealing valve is installed in the dedicated sampling channel. It is made of medical-grade silicone and is normally closed. When sampling, the sampling needle can push open the valve and insert into the sample container to take a sample. After sampling, the valve automatically closes, effectively preventing sample volatilization and the entry of external contaminants. The one-way sealing valve is directed from the outside to the inside of the sample receiving cavity, allowing the sampling tool to be inserted in one direction only to take a sample, thus avoiding sample volatilization or the entry of external contaminants and forming a secondary seal. The sample receiving cavity is equipped with a dust cap at the top port. The dust cap is fixedly connected to the supporting body by a flexible connecting strap, which can close the sampling channel when no sampling is being performed, further improving the sealing performance. The bottom of each sample receiving cavity is provided with a leak-proof flow guiding structure. The leak-proof flow guiding structure includes a flow guiding channel opened at the bottom of the sample receiving cavity and a collection box detachably connected to the bottom of the supporting body. The flow guiding channel is arranged around the bottom of each sample receiving cavity and is connected to the inside of the collection box. When the sample leaks, the leaked material flows into the collection box along the flow guiding channel, which can quickly collect the leaked sample and prevent the spread of pollution. The collection box is detachably connected to the bottom of the carrier body via a snap-fit ​​structure. The snap-fit ​​structure includes a snap-fit ​​seat at the bottom of the carrier body and a snap-fit ​​lip plate at the upper port of the collection box. The snap-fit ​​lip plate is slidably inserted into the snap-fit ​​seat. A transparent observation window is provided on the outer wall of the collection box to facilitate observation of whether there is any leakage of samples. After use, the collection box can be separated and cleaned for easy reuse.

[0006] (III) Beneficial Effects Compared with the prior art, this utility model provides a sample carrier device for traditional Chinese medicine testing that prevents cross-contamination, and has the following beneficial effects: This invention, through its independent sealed cavity and double sealing structure, ensures that each sample is in an independent sealed space, preventing cross-diffusion of volatile substances from the sample and preventing external contaminants from entering during sampling. It blocks cross-contamination paths at the source. The dedicated sampling channel, combined with a one-way sealing valve, eliminates the need for sampling tools to contact the outside of the sample container or the sealing structure of other samples, completely avoiding cross-contamination during sampling. The leak-proof diversion structure can quickly collect leaked samples, preventing leaked substances from spreading to other sample cavities, further improving the reliability of pollution prevention. Attached Figure Description

[0007] Figure 1 This is a cross-sectional view of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a cross-sectional view of the supporting body in this utility model; Figure 4 This is a cross-sectional view of the sealing cap in this utility model.

[0008] In the diagram: 1. Support body; 2. Sample receiving cavity; 3. Annular step; 4. Sealing cap; 5. Elastic sealing gasket; 6. Dedicated sampling channel; 7. One-way sealing valve; 8. Flow guide groove; 9. Collection box; 10. Marking groove; 11. Annular boss; 12. Dust cap; 13. Anti-slip protrusion; 14. Snap-on structure; 15. Observation window. Detailed Implementation

[0009] 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.

[0010] Example like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, one embodiment of the present invention proposes a sample carrier device for preventing cross-contamination of traditional Chinese medicine testing, including a carrier body 1. The carrier body 1 is a cuboid structure and is integrally injection molded from polypropylene material. It has a uniformly distributed sample receiving cavity 2 arrayed on it. The inner diameter of each sample receiving cavity 2 is adapted to the outer diameter of commonly used traditional Chinese medicine testing sample tubes. The inner wall of the sample receiving cavity 2 is provided with an annular step 3 for positioning the elastic sealing gasket 5 and the sample container. The carrier body 1 is provided with an independent marking groove 10, into which a label with sample information can be inserted to avoid confusion. The marking groove 10 is set one-to-one with the sample receiving cavity 2, and the side wall of the carrier body 1 is provided with anti-slip protrusions 13 for easy hand operation. A sealing assembly is installed at the upper port of the sample receiving cavity 2, and each assembly is provided in a corresponding manner. The sealing assembly includes a sealing cap 4, an elastic sealing gasket 5, and a dedicated sampling channel 6. The elastic sealing gasket 5 is embedded in the annular step 3 to achieve a sealed fit between the sample container and the sample receiving cavity 2. The sealing cap 4 is detachably connected to the top of the sample receiving cavity 2 by threads, and the bottom of the sealing cap 4 presses against the elastic sealing gasket 5 to form a primary seal. The elastic sealing gasket 5 is made of silicone and has an annular groove on its top surface. The sealing cap 4 has an annular protrusion 11 at its bottom that matches the annular groove. When the sealing cap 4 is screwed onto the top of the sample receiving cavity 2 via threads, the annular protrusion 11 presses against the elastic sealing gasket 5 to achieve a tight seal between the sample container and the sample receiving cavity 2. After use, the sealing cap 4 can be removed and the elastic sealing gasket 5 can be taken out for cleaning, making it easy to reuse. Among them, the external thread on the outer wall of the sealing cap 4 matches the internal thread at the upper port of the sample receiving cavity 2; A dedicated sampling channel 6 is located in the middle of the sealing cover 4. Its inner diameter is adapted to the outer diameter of commonly used sampling needles. A one-way sealing valve 7 is installed in the dedicated sampling channel 6. It is made of medical-grade silicone and is normally closed. When sampling, the sampling needle can push open the valve and insert into the sample container to take a sample. After sampling, the valve automatically closes, effectively preventing sample volatilization and the entry of external contaminants. The one-way sealing valve 7 is directed from the outside to the inside of the sample receiving cavity 2, allowing the sampling tool to be inserted into the sample container in one direction only, thus avoiding sample volatilization or the entry of external contaminants and forming a secondary seal. Among them, a dust cap 12 is provided at the top port of the sample receiving cavity 2. The dust cap 12 is fixedly connected to the supporting body 1 through a flexible connecting strip, which can close the sampling channel when not sampling, further improving the sealing performance. Each sample receiving cavity 2 is equipped with a leak-proof flow guiding structure at its bottom. The leak-proof flow guiding structure includes a flow guiding channel 8 opened at the bottom of the sample receiving cavity 2 and a collection box 9 detachably connected to the bottom of the supporting body 1. The flow guiding channel 8 is arranged around the bottom of each sample receiving cavity 2 and is connected to the inside of the collection box 9. When the sample leaks, the leaked material flows into the collection box 9 along the flow guiding channel 8, which can quickly collect the leaked sample and prevent the spread of pollution. The collection box 9 is detachably connected to the bottom of the carrier body 1 via a snap-fit ​​structure 14. The outer wall of the collection box 9 is provided with a transparent observation window 15 to facilitate observation of whether there is any leakage of samples. After use, the collection box 9 can be separated and cleaned for easy reuse.

[0011] When using, place the containers containing the Chinese medicine test samples one by one into the corresponding sample receiving cavity 2, ensuring that the upper surface of the container is in contact with the bottom surface of the elastic sealing gasket 5. Next, tighten the sealing cap 4 of each sample receiving cavity 2, and press the elastic sealing gasket 5 with the annular boss 11 to form a double seal, thus completing the anti-contamination preparation for sample storage. When sampling is required, open the dust cap 12 of the target sample, insert the sampling tool into the container through the dedicated sampling channel 6 to open the one-way sealing valve 7 and take the sample. After sampling, take out the tool, the one-way sealing valve 7 will close automatically, and the dust cap 12 will be fastened again. If a leaked sample is observed in the collection box 9 through the observation window 15 during use, remove the collection box 9 and clean it to avoid secondary pollution caused by residual leaked material.

[0012] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A sample carrier device for traditional Chinese medicine testing that prevents cross-contamination, comprising a carrier body (1), characterized in that: The supporting body (1) has a uniformly distributed sample receiving cavity (2) arrayed on it, and the inner wall of the sample receiving cavity (2) is provided with an annular step (3). A sealing assembly is provided at the upper port of the sample receiving cavity (2). The sealing assembly includes a sealing cover (4), an elastic sealing gasket (5), and a dedicated sampling channel (6). The elastic sealing gasket (5) is embedded in the annular step (3). The sealing cover (4) is detachably connected to the top of the sample receiving cavity (2) by threads, and the bottom of the sealing cover (4) presses against the elastic sealing gasket (5). The dedicated sampling channel (6) is opened through the middle of the sealing cover (4), and a one-way sealing valve (7) is installed in the dedicated sampling channel (6). The bottom of each sample receiving cavity (2) is provided with a leak-proof flow guiding structure. The leak-proof flow guiding structure includes a flow guiding groove (8) opened at the bottom of the sample receiving cavity (2) and a collection box (9) detachably connected to the bottom of the supporting body (1). The flow guiding groove (8) is arranged around the bottom of each sample receiving cavity (2), and the flow guiding groove (8) is connected to the inside of the collection box (9).

2. The traditional Chinese medicine testing sample carrier device for preventing cross-contamination according to claim 1, characterized in that: The supporting body (1) is provided with an independent marking groove (10), which corresponds to the sample receiving cavity (2) one by one, and the side wall of the supporting body (1) is provided with anti-slip protrusions (13).

3. The traditional Chinese medicine testing sample carrier device for preventing cross-contamination according to claim 1, characterized in that: The one-way sealing valve (7) is directed from the outside to the inside of the sample receiving cavity (2).

4. The traditional Chinese medicine testing sample carrier device for preventing cross-contamination according to claim 1, characterized in that: The top surface of the elastic sealing gasket (5) is provided with an annular groove, and the bottom of the sealing cover (4) is provided with an annular boss (11) that matches the annular groove.

5. The traditional Chinese medicine testing sample carrier device for preventing cross-contamination according to claim 1, characterized in that: A dust cap (12) is provided at the top port of the sample receiving cavity (2), and the dust cap (12) is fixedly connected to the supporting body (1) by a flexible connecting strip.

6. The traditional Chinese medicine testing sample carrier device for preventing cross-contamination according to claim 1, characterized in that: The collection box (9) is detachably connected to the bottom of the supporting body (1) via a snap-fit ​​structure (14), and a transparent observation window (15) is provided on the outer side wall of the collection box (9).

7. A sample carrier for traditional Chinese medicine testing that prevents cross-contamination according to claim 6, characterized in that: The snap-fit ​​structure (14) includes a snap-fit ​​seat at the bottom of the support body (1) and a snap-fit ​​lip plate at the upper port of the collection box (9), the snap-fit ​​lip plate being slidably inserted into the snap-fit ​​seat.

8. A sample carrier for traditional Chinese medicine testing that prevents cross-contamination according to claim 1, characterized in that: The external thread on the outer wall of the sealing cap (4) matches the internal thread at the upper port of the sample receiving cavity (2).

9. A sample carrier for traditional Chinese medicine testing that prevents cross-contamination according to claim 1, characterized in that: The inner diameter of the dedicated sampling channel (6) is adapted to the outer diameter of commonly used sampling needles.

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