Immunochromatography card box
By introducing a centralized sample dripper and a clamping frame into the immunochromatographic cartridge, the problems of uneven sample dripping and unstable test strip position are solved, achieving a highly accurate and convenient detection process and improving the user experience.
Patent Information
- Application Number
- CN202520241384.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing immunochromatographic cartridges have large sample loading areas, making it difficult for samples to concentrate during dripping and causing them to easily drip outside the cartridge, increasing the difficulty of operation. Furthermore, the test strip position is unstable, affecting the accuracy of the test results.
The design incorporates an immunochromatographic cartridge lid, sample application area, centralized sample application leak, push block, first clamping frame, second clamping frame, test strip cavity, and support groove to ensure the test strip is stably positioned within the cartridge. The centralized sample application leak ensures that the sample drips centrally to the center of the test strip, reducing waste and uneven application.
It improves the accuracy and reliability of detection, reduces detection errors, enhances user experience and ease of operation, and reduces user concerns and anxieties.
Smart Images

Figure CN223796559U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of immunochromatographic cartridge technology, and relates to an immunochromatographic cartridge. Background Technology
[0002] Immunochromatographic cartridges are an application of immunochromatographic technology. They are mainly used for the rapid and convenient detection of specific antigens or antibodies in samples. Depending on the detection target and marker, immunochromatographic cartridges can be divided into various types, such as colloidal gold immunochromatographic kits and fluorescent immunochromatographic kits. These different types of cartridges may vary in terms of sensitivity, accuracy, and ease of operation, and are suitable for different detection scenarios and needs.
[0003] A search revealed an immunochromatographic reagent cartridge case with publication number CN219496396U. Specifically, the case comprises an upper cover and a lower cover that are fastened together. The upper cover has a circular protrusion on its inner side, opposite to the viewing window, with the protrusion at the sample application hole being higher than that at the viewing window. The lower cover has a strip-shaped protrusion forming a cartridge placement area, with a protrusion in the middle of the opposite side of each strip-shaped protrusion. This novel structural combination offers advantages such as higher stability in cartridge fixation and improved chromatography speed.
[0004] Existing immunochromatographic cartridges, due to their large sample application area, cannot concentrate the sample during dripping, making it easy for it to drip outside the cartridge. This requires operators to more precisely control the amount and position of the sample, increasing the difficulty and inconvenience of operation. Furthermore, the immunochromatographic cartridges in the aforementioned comparative case also lack the ability to concentrate sample application and stabilize the test strip. Over long-term use, the unstable position of the test strip within the cartridge can easily lead to movement or deformation during testing, thus affecting the accuracy of the test results. Utility Model Content
[0005] The purpose of this invention is to provide an immunochromatographic cartridge that, through an immunochromatographic cartridge lid, sample application area, centralized sample application leak, push block, first clamping frame, second clamping frame, test strip cavity, and support groove, enables the immunochromatographic cartridge to achieve centralized sample application and test strip stabilization. This reduces user anxiety and unease during testing over long-term use, improving the overall user experience. Simultaneously, centralized sample application also improves the accuracy and reliability of testing, reducing the probability of testing errors. This addresses the problem in existing immunochromatographic cartridges where the large sample application area makes it difficult to concentrate the sample during dripping, causing it to easily drip outside the cartridge. This requires operators to more precisely control the amount and position of the added sample, increasing operational difficulty and inconvenience. Furthermore, the immunochromatographic cartridges in the aforementioned comparative case also lacked the ability to centrally apply sample and stabilize the test strip. Over long-term use, the unstable position of the test strip within the cartridge could lead to movement or deformation during testing, affecting the accuracy of the results.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an immunochromatographic cartridge, comprising an immunochromatographic cartridge body, which is a main body for carrying test strips;
[0007] An installation clip is provided on the outside of the immunochromatographic cartridge body for internal mounting tabs. An immunochromatographic cartridge cover is fixedly installed on the upper end of the mounting tabs. A sample application area is provided above the immunochromatographic cartridge cover. An annular groove is provided on the outside of the sample application area. An annular slider is rotatably connected inside the annular groove. A centralized sample application leak is fixedly installed above the annular slider. A push block is fixedly installed on the outside of the centralized sample application leak.
[0008] The first clamping frame is located inside the immunochromatographic cartridge lid and is used to clamp the test strip when the lid is closed. A second clamping frame is fixedly installed on the right side of the first clamping frame. A test strip cavity is fixedly installed inside the immunochromatographic cartridge body. A support groove is opened inside the test strip cavity. An immunochromatographic test strip is placed above the support groove. A stiffening rib is fixedly installed on the outside of the test strip cavity.
[0009] The present invention is further configured such that the mounting buckle fixedly installed on the outside of the immunochromatographic cartridge body is engaged with the mounting tongue fixedly installed on the outside of the immunochromatographic cartridge cover, and the mounting buckle and the mounting tongue are used in cooperation.
[0010] The present invention is further provided that a hand-held area is provided above the immunochromatographic cartridge cover, and an observation window is provided on the right side of the hand-held area.
[0011] The present invention is further configured such that the centralized sample dispensing leak is slidably connected to the sample dispensing area, and the internal dimensions of the annular groove match the external dimensions of the annular slider.
[0012] The present invention is further configured such that a positioning sleeve is fixedly installed inside the immunochromatographic cartridge, a positioning post is embedded inside the positioning sleeve, and an immunochromatographic cartridge cover is fixedly connected above the positioning post.
[0013] The present invention is further configured such that the immunochromatographic cartridge cover is movably connected to the immunochromatographic cartridge body, and the positioning sleeves are evenly distributed on the immunochromatographic cartridge body.
[0014] The present invention is further configured such that the reinforcing ribs are provided in multiple forms, and the multiple reinforcing ribs are distributed at equal intervals on both sides of the test paper cavity.
[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0016] This utility model includes an immunochromatographic cartridge lid, a sample application area, a centralized sample application leak, a push block, a first clamping frame, a second clamping frame, a test strip cavity, and a support groove. When using this immunochromatographic cartridge, firstly, the immunochromatographic test strip is taken out and placed in the support groove of the test strip cavity in the immunochromatographic cartridge. When the immunochromatographic cartridge lid is closed, the first and second clamping frames at both ends firmly press the immunochromatographic test strip from above, ensuring the test strip's stable position in the cartridge and preventing movement or deformation of the test strip during testing, which could affect the test results. Then, during sample application, the first and second clamping frames press firmly against the test strip from above, ensuring the test strip's stable position in the cartridge and preventing movement or deformation of the test strip during testing, thus affecting the test results. Then, during sample application, the first and second clamping frames press firmly against the test strip from above, ensuring the test strip's stable position in the cartridge and preventing movement or deformation of the test strip during testing, which could affect the test results. The centralized sample dispensing leak in the sample dispensing area allows the sample to flow towards the center of the test strip as it drips. Furthermore, the leak can be manually rotated to further concentrate the sample dripping, reducing sample waste and uneven dispensing, thus improving accuracy. This combination of features gives the immunochromatographic cartridge the ability to concentrate sample dispensing and stabilize the test strip. Over the long term, this reduces user anxiety and concerns during testing, enhancing the overall user experience. Simultaneously, centralized sample dispensing improves the accuracy and reliability of the test, reducing the probability of errors.
[0017] This invention comprises an immunochromatographic cartridge body, mounting buckles, mounting tabs, an immunochromatographic cartridge lid, a positioning sleeve, and a positioning post. When using this immunochromatographic cartridge, the positioning sleeve and positioning post are located inside the immunochromatographic cartridge body, preventing misalignment when closing the lid. The quick operation of the mounting buckles and mounting tabs allows for rapid opening of the immunochromatographic cartridge body and lid, eliminating the need for complicated steps or tools and improving ease of use. Furthermore, the positioning sleeve and positioning post not only provide alignment but also increase the connection stability between the cartridge body and lid, helping to prevent the lid from loosening or falling off due to external factors such as vibration or improper operation during the detection process. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the immunochromatographic cartridge cover structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the centralized sample dispensing leak structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the positioning sleeve structure of this utility model;
[0022] Figure 5 This is a schematic diagram of the test paper cavity structure of this utility model.
[0023] The components include: 1. Immunochromatographic cartridge body; 2. Mounting buckle; 3. Mounting latch; 4. Immunochromatographic cartridge cover; 5. Handheld area; 6. Observation window; 7. Sample dispensing area; 8. Circular groove; 9. Circular slider; 10. Centralized sample dispensing leak; 11. Push block; 12. First clamping frame; 13. Second clamping frame; 14. Positioning sleeve; 15. Positioning column; 16. Test strip chamber; 17. Support groove; 18. Immunochromatographic test strip; 19. Reinforcing rib. Detailed Implementation
[0024] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the immunochromatographic cartridge proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.
[0025] This utility model provides, for example Figure 1-5 An immunochromatographic cartridge shown includes an immunochromatographic cartridge body 1, which is a main body for holding test strips;
[0026] The mounting buckle 2 is set on the outside of the immunochromatographic cartridge 1 for internal mounting tab 3. The upper end of the mounting tab 3 is fixedly mounted with the immunochromatographic cartridge cover 4. The upper part of the immunochromatographic cartridge cover 4 is provided with a sample loading area 7. The outer part of the sample loading area 7 is provided with an annular groove 8. The annular groove 8 is rotatably connected to an annular slider 9. The upper part of the annular slider 9 is fixedly mounted with a centralized sample loading leak 10. The outer part of the centralized sample loading leak 10 is fixedly mounted with a push block 11.
[0027] The first clamping frame 12 is located inside the immunochromatographic cartridge cover 4 and is used to clamp the test strip when the cover is closed. A second clamping frame 13 is fixedly installed on the right side of the first clamping frame 12. A test strip cavity 16 is fixedly installed inside the immunochromatographic cartridge body 1. A support groove 17 is opened inside the test strip cavity 16. An immunochromatographic test strip 18 is placed above the support groove 17. A stiffening rib 19 is fixedly installed on the outside of the test strip cavity 16. The immunochromatographic test strip 18 is first taken out and placed in the support groove 17 of the test strip cavity 16 of the immunochromatographic cartridge body 1. In this way, when the immunochromatographic cartridge cover 4 is closed, the first clamping frame 12 and the second clamping frame 13 at both ends firmly clamp the immunochromatographic test strip 18 from above, ensuring that the test strip is in a stable position in the cartridge and preventing the test strip from moving or deforming during the test, thereby affecting the test results.
[0028] The mounting clip 2, which is externally fixed to the immunochromatographic cartridge body 1, engages with the mounting tongue 3, which is externally fixed to the immunochromatographic cartridge cover 4. The quick operation of the mounting clip 2 and mounting tongue 3 allows for rapid opening of the immunochromatographic cartridge body 1 and the immunochromatographic cartridge cover 4, eliminating the need for complicated steps or tools and improving ease of use. A handheld area 5 is located on the top of the immunochromatographic cartridge cover 4, and an observation window 6 is located on the right side of the handheld area 5. The anti-slip texture of the handheld area 5 helps the operator maintain stability when holding the immunochromatographic cartridge. The centralized sample dispensing leak 10 is slidably connected to the sample dispensing area 7. The internal dimensions of the annular groove 8 match the external dimensions of the annular slider 9. During sample dispensing, the centralized sample dispensing leak 10 in the sample dispensing area 7 causes the sample to flow towards the center of the test strip as it drips. Furthermore, manual rotation of the centralized sample dispensing leak 10 can further concentrate the dripping sample, reducing sample waste and uneven dispensing, thereby improving the accuracy of sample dispensing.
[0029] An immunochromatographic cartridge 1 has a positioning sleeve 14 fixedly installed inside, and a positioning post 15 is embedded inside the positioning sleeve 14. An immunochromatographic cartridge cover 4 is fixedly connected above the positioning post 15. The immunochromatographic cartridge cover 4 is movably connected to the immunochromatographic cartridge 1. The positioning sleeves 14 are evenly distributed on the immunochromatographic cartridge 1. When the immunochromatographic cartridge is used, the positioning sleeves 14 and positioning posts 15 are inside the immunochromatographic cartridge 1, which can prevent misalignment when closing the cover. Multiple stiffening ribs 19 are provided. The multiple stiffening ribs 19 are evenly distributed on both sides of the test strip cavity 16. The stiffening ribs 19 are located on both sides of the test strip cavity 16 and together with the test strip cavity 16, they enhance the stability of the immunochromatographic cartridge 1.
[0030] The working principle of this utility model is as follows: First, take out the immunochromatographic cartridge and place the immunochromatographic test strip 18 into the support groove 17 of the test strip cavity 16 of the immunochromatographic cartridge body 1. When the immunochromatographic cartridge lid 4 is closed, the first clamping bracket 12 and the second clamping bracket 13 at both ends firmly press the immunochromatographic test strip 18 from above, ensuring the stability of the test strip in the cartridge and preventing movement or deformation of the test strip during the testing process, which would affect the test results. Then, when closing the lid, the positioning sleeve 14 and the positioning post 15 are inside the immunochromatographic cartridge body 1. Align the positioning post 15 with the positioning sleeve 14, and engage the mounting tab 3 and the mounting buckle 2 to complete the closing. This not only prevents misalignment during closing but also allows for quick operation of the mounting buckle 2 and mounting tab 3, enabling rapid opening of the immunochromatographic cartridge body 1 and the immunochromatographic cartridge lid 4. Users can complete the operation without complicated steps or tools, improving ease of use. Subsequently, the operator... The sample can be added by holding the immunochromatographic cartridge through the handheld area 5. After the sample drips, the concentrated sample dripping leak 10 in the sample application area 7 will cause the sample to flow towards the center of the test strip. Then, the concentrated sample dripping leak 10 can be rotated by manually pushing the pusher block 11 through the annular groove 8 and the annular slider 9. This concentrated sample dripping leak 10 makes the sample dripping more concentrated, reducing sample waste and uneven dripping, thereby improving the accuracy of sample application. This gives the immunochromatographic cartridge the ability to concentrate sample application and stabilize the test strip. With long-term use, it reduces the user's worries and anxieties during the testing process and improves the overall user experience. Then, the operator can view the test strip test results through the observation window 6 to complete the use of the immunochromatographic cartridge. Finally, after completing all the installation and use of the immunochromatographic cartridge according to the above operations, routine maintenance of the device is required. This completes the use of the immunochromatographic cartridge.
[0031] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.
[0032] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. An immunochromatographic cartridge, characterized in that, include Immunochromatographic cassette (1), the main body for holding the test strip; Installing buckle (2) is set on the outside of the immunochromatographic cartridge body (1) for internal mounting tab (3), and the upper end of the mounting tab (3) is fixedly installed with the immunochromatographic cartridge cover (4). The immunochromatographic cartridge cover (4) is provided with a sample loading area (7) above it. The sample loading area (7) is provided with an annular groove (8) on the outside. The annular groove (8) is rotatably connected to an annular slider (9). The annular slider (9) is fixedly installed above it with a centralized sample loading leak (10). The centralized sample loading leak (10) is fixedly installed with a push block (11) on the outside. A first clamping frame (12) is located inside the immunochromatographic box cover (4) and is used to clamp the test strip when the cover is closed. A second clamping frame (13) is fixedly installed on the right side of the first clamping frame (12). A test strip cavity (16) is fixedly installed inside the immunochromatographic box body (1). A support groove (17) is opened inside the test strip cavity (16). An immunochromatographic test strip (18) is placed above the support groove (17). A stiffening rib (19) is fixedly installed on the outside of the test strip cavity (16).
2. The immunochromatographic cartridge according to claim 1, characterized in that: The mounting buckle (2) fixedly installed on the outside of the immunochromatographic cartridge body (1) engages with the mounting tab (3) fixedly installed on the outside of the immunochromatographic cartridge cover (4), and the mounting buckle (2) and the mounting tab (3) are used together.
3. An immunochromatographic cartridge according to claim 1, characterized in that: The immunochromatographic cartridge cover (4) has a hand-held area (5) on its upper part, and an observation window (6) is provided on the right side of the hand-held area (5).
4. An immunochromatographic cartridge according to claim 1, characterized in that: The centralized sample dispensing leak (10) is slidably connected to the sample dispensing area (7), and the internal dimensions of the annular groove (8) match the external dimensions of the annular slider (9).
5. An immunochromatographic cartridge according to claim 1, characterized in that: An immunochromatographic cartridge (1) is fixedly installed inside a positioning sleeve (14), and a positioning post (15) is embedded inside the positioning sleeve (14). An immunochromatographic cartridge cover (4) is fixedly connected above the positioning post (15).
6. An immunochromatographic cartridge according to claim 5, characterized in that: The immunochromatographic cartridge cover (4) is movably connected to the immunochromatographic cartridge body (1), and the positioning sleeves (14) are evenly distributed on the immunochromatographic cartridge body (1).
7. An immunochromatographic cartridge according to claim 1, characterized in that: The stiffening ribs (19) are configured in multiple ways, and the multiple stiffening ribs (19) are distributed at equal intervals on both sides of the test paper cavity (16).
Citation Information
Patent Citations
Immunochromatography reagent card shell
CN219496396U