Card shell and fluorescence chromatography reagent card

Abstract

The utility model relates to a card shell and a fluorescence chromatography reagent card, and belongs to the technical field of detection reagent cards. The clamping shell is formed by mutually buckling an upper cover and a bottom shell, the bottom shell is provided with a test strip placing groove, one surface, facing the bottom shell, of the upper cover is provided with a test strip pressing piece, and the test strip pressing piece is located above the absorbent paper and can abut against the absorbent paper packaged in the clamping shell. A separation strip is arranged between every two adjacent test strip placement grooves and is arranged between the sample pads of the adjacent test strips. According to the clamping shell, double limiting and fixing are conducted on a test strip, the test strip can be limited and fixed through the test strip containing groove, displacement of the test strip in the horizontal direction is avoided, the two test strip pressing pieces abut against absorbent paper, the test strip is further fixed, and therefore the test strip can be stably placed in the clamping shell without displacement or falling off; the separation strip is arranged to prevent the sample in the sample pad of the test strip from transversely flowing to the adjacent sample pad to influence the detection accuracy, and the quality of the card shell and the detection result of the sample to be detected are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of detection reagent cards, and in particular to a card shell and a fluorescent chromatography reagent card. Background Art

[0002] Immunochromatographic test reagent cards usually consist of two parts: reagent paper and card shell. The reagent paper is usually composed of a sample pad, a binding pad, a detection pad, a sample suction pad and a bottom plate, and sometimes also includes a blood filter membrane. The card shell is used to pack and fix the reagent paper to achieve biomedical testing. This type of reagent is characterized by its convenience, speed and low overall cost, and is widely used in clinical practice. Specifically, the lower shell of the card shell mainly serves to hold the reagent paper, and the upper cover realizes auxiliary fixation for sample addition and observation / detection at the same time. However, although there are many forms of the structure of the card shell to frame the reagent paper, they can basically only meet the needs of horizontal fixation. During the assembly process or transportation process, the test strips often appear dislocated or fall off, which will reduce production efficiency and increase product quality control risks.

[0003] For example, in the existing patent technology, the authorization announcement number CN218445529U is a new type of detection reagent cartridge, which includes an upper shell and a lower shell, an upper shell is arranged on the upper end of the lower shell, a partition is arranged inside the lower shell, symmetrically distributed water absorbent rods and detection test strips are arranged inside the lower shell, a plurality of card slots are provided inside the lower shell, a plurality of symmetrically distributed reagent papers are provided at the lower end of the upper shell, two reagent ports are provided inside the upper shell, and two observation ports are provided inside the upper shell. The cartridge of the utility model is still used to place and fix the detection test strip by means of the card slot. In the prior art, in order to place the detection test strip in the card slot, the reagent card manufacturer usually sets the width and length of the card slot to be slightly larger than the length and width of the detection test strip. Therefore, after the detection test strip is placed in the cartridge, it is still out of place or falls off only by limiting the position by the card slot itself.

[0004] There are also multi-cards on the market, which can achieve the advantage of using the same card to test multiple samples or multiple indicators at the same time. Although the existing multi-cards solve the problem that when multiple samples or multiple indicators need to be tested, multiple test cards need to be used for multiple tests, which increases the number of tests and reduces work efficiency. However, when the existing multi-cards are used for testing, after adding samples to the sample pad, the samples on the sample pad flow horizontally, causing contamination and interference to the samples on the adjacent sample pads, thereby affecting the test results.

[0005] Therefore, it is very necessary to provide a cartridge that can stably fix the test strip in the cartridge and ensure the accuracy of the test result. Utility Model Content

[0006] In order to overcome the problems existing in the related art, the purpose of the present application is to provide a card shell and a fluorescent chromatography reagent card. The card shell is formed by an upper cover and a bottom shell that are buckled together. The bottom shell is provided with a test strip placement slot, and the test strip placement slot is used to place the test strip. The card shell of the present application has a double limit fixation for the test strip. First, the test strip placement slot is used to place the test strip and can also limit and fix the test strip to avoid the horizontal displacement of the test strip. Second, the paper strip pressure piece abuts against the absorbent paper to further fix the test strip, so that the test strip can be stably placed in the card shell without being dislocated or falling off, thereby ensuring the quality of the card shell and the subsequent test results.

[0007] One of the purposes of the invention of the present application is to provide a card case, wherein the card case is formed by an upper cover and a bottom shell that are buckled together, and the bottom shell is provided with a test strip placement slot, and the test strip placement slot is used to place a test strip, and the test strip comprises: a bottom plate and a sample pad, a binding pad, a reaction membrane and a water-absorbing paper that are arranged on the bottom plate and connected in sequence along the length direction of the card case;

[0008] A paper strip pressing piece is provided on one side of the upper cover facing the bottom shell. The paper strip pressing piece is located above the absorbent paper and can abut against the absorbent paper encapsulated in the card shell.

[0009] In a preferred technical solution of the present application, the test strip placement slot is a rectangular test strip placement slot surrounded by a plurality of limiting bars.

[0010] In a preferred technical solution of the present application, the inner wall of the upper cover or the bottom shell is provided with a columnar structure, and a cavity column structure embedded with the columnar structure is provided, so that the upper cover and the bottom shell can be assembled by buckling.

[0011] In a preferred technical solution of the present application, the upper cover is provided with a sample loading hole, the sample loading hole is recessed in the surface of the upper cover away from the bottom shell, and the sample loading hole is located above the sample pad.

[0012] And / or, the upper cover is provided with an observation window, and the observation window is located above the reaction membrane.

[0013] In a preferred technical solution of the present application, a partition bar is provided between two adjacent test strip placement slots, and the partition bar is located between adjacent sample pads.

[0014] In a preferred technical solution of the present application, the card shell further includes positioning grooves, and the positioning grooves are respectively arranged on the sides of the upper cover and the bottom shell, and the positioning grooves of the upper cover and the bottom shell correspond to each other.

[0015] In a preferred technical solution of the present application, the periphery of the upper cover is further provided with a folded edge, and the bottom shell is provided with a convex ridge that can be buckled into the folded edge.

[0016] In a preferred technical solution of the present application, the paper strip pressing piece includes a spherical protrusion, a needle-shaped protrusion or a columnar protrusion.

[0017] In a preferred technical solution of the present application, the limit strips include horizontal limit strips, vertical limit strips and gantry-shaped limit strips, wherein the horizontal limit strips and the gantry-shaped limit strips enclose a length limit space for the test strip, the vertical limit strips are relatively arranged to form a width limit space for the test strip, and an auxiliary limit edge is also arranged on the inner side of the limit strip.

[0018] The second object of the present invention is to provide a fluorescent chromatography reagent card, comprising a fluorescent chromatography test strip and any of the above-mentioned card shells.

[0019] The beneficial effects of the technical solution provided by this application are:

[0020] The card case of the present application is formed by an upper cover and a bottom shell that are buckled together. The bottom shell is provided with a test strip placement slot, which is used to place the test strip. The test strip includes: a bottom plate and a sample pad, a binding pad, a reaction membrane and absorbent paper that are arranged on the bottom plate and connected in sequence along the length direction of the card case; a paper strip press is provided on the side of the upper cover facing the bottom shell, and the paper strip press is located above the absorbent paper and can abut against the absorbent paper encapsulated in the card case. The card case of the present application performs a double limit fixation on the test strip. First, the test strip placement slot is used to place the test strip and can also limit and fix the test strip to avoid the horizontal displacement of the test strip. Second, the paper strip press abuts against the absorbent paper to further fix the test strip, so that the test strip can be stably placed in the card case without being dislocated or falling off, thereby ensuring the quality of the card case and the subsequent test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the inner surface structure of the upper cover shown in the embodiment of the present application;

[0022] Figure 2 is a schematic diagram of the structure of the bottom shell shown in an embodiment of the present application;

[0023] Figure 3 is a schematic diagram of the outer surface structure of the upper cover shown in the embodiment of the present application;

[0024] Figure 4 It is a structural schematic diagram of a stuck shell shown in an embodiment of the present application;

[0025] Figure 5 is a schematic diagram of a partially enlarged structure of a bottom shell shown in an embodiment of the present application;

[0026] Figure 6 It is a schematic diagram of the structure of the test strip shown in the embodiment of the present application.

[0027] Reference numerals:

[0028] 1. Card shell; 11. Upper cover; 111. Paper strip pressure piece; 112. Sample addition hole; 113. Observation window; 114. Folded edge; 12. Bottom shell; 121. Raised ridge; 13. Test strip placement slot; 14. Limiting strip; 141. Horizontal limiting strip; 142. Vertical limiting strip; 143. Gantry-shaped limiting strip; 15. Columnar structure; 16. Cavity column structure; 17. Positioning groove; 18. Separation strip; 19. Auxiliary limiting ridge; 2. Test strip; 21. Bottom plate; 22. Sample pad; 23. Combination pad; 24. Reaction membrane; 25. Absorbent paper. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0030] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0031] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] Embodiment 1

[0033] Although there are many forms of the structure of the placement slot of the existing card shell, they can basically only meet the needs of horizontal fixation. During the assembly process, they often deviate from the horizontal state, resulting in the dislocation and falling of the test strip, which will reduce production efficiency and increase product quality control risks. Therefore, it is necessary to study and provide a card shell that can not only meet the needs of horizontal fixation but also limit the longitudinal dislocation of the test strip. The embodiments of the present application will be invented to solve the above problems, and the present invention will be described in detail in conjunction with the accompanying drawings.

[0034] See also Figures 1 to 5 .

[0035] The card shell 1 of the embodiment of the present application is composed of an upper cover 11 and a bottom shell 12 that are buckled together. The bottom shell 12 is provided with at least one test strip placement slot 13, and the test strip placement slot 13 is used to place the test strip 2. The test strip 2 includes: a bottom plate 21 and a sample pad 22, a binding pad 23, a reaction membrane 24 and an absorbent paper 25 that are arranged on the bottom plate 21 and connected in sequence along the length direction of the card shell 1.

[0036] At least one test strip placement slot 13 is provided on the bottom shell 12 of the embodiment of the present application. For example, it can be set according to the actual application requirements. One test strip placement slot 13 or three test strip placement slots 13 can be set. For example, if the test results need to be obtained by combining and analyzing the test results of multiple processed samples, it can be set as a triple card-type card shell, such as by detecting the secretion of gamma-interferon by memory lymphocytes in the blood when they are stimulated in vitro with Mycobacterium tuberculosis-specific antigens again, it is judged whether there is a specific T cell response against Mycobacterium tuberculosis in the body. The sample to be tested needs to be dripped into the sample addition hole 112 of the test card, and the test object in the sample combines with the fluorescent labeled antibody on the binding pad to form a reaction complex. Under the action of chromatography, the reaction complex moves forward along the nitrocellulose membrane and is captured by the coated antibody on the nitrocellulose membrane detection line. The concentration of IFN-γ in the sample can be detected by a fluorescent immunoassay analyzer. This detection method needs to judge the test result of the sample to be tested by combining the IFN-γ concentration of the negative control tube, the IFN-γ concentration of the specific stimulation tube, and the IFN-γ concentration of the positive control tube. Therefore, a triple card can facilitate the testing requirements of the product, and can also greatly improve the testing efficiency and the cost of the card shell 1.

[0037] Exemplarily, the test strip 2 includes a base plate 21; a reaction membrane 24 is provided on the base plate 21, and the reaction membrane 24 may be a nitrocellulose membrane, on which a detection line and a quality control line are provided; two ends of the nitrocellulose membrane are overlapped with a conjugation pad 23 and an absorbent paper 25, respectively, and the conjugation pad 23 is arranged near the detection line end, and the absorbent paper 25 is arranged near the quality control line end; the conjugation pad 23 and the absorbent paper 25 are arranged on the upper part of the nitrocellulose membrane; the other end of the conjugation pad 23 is overlapped with a sample pad 22, and the sample pad 22 is arranged on the upper part of the conjugation pad 23.

[0038] A paper strip pressing piece 111 is disposed on one side of the upper cover 11 facing the bottom shell 12 . The paper strip pressing piece 111 is located above the absorbent paper 25 and can abut against the absorbent paper 25 encapsulated in the card shell 1 .

[0039] The placement grooves of the existing card shell 1 can basically only meet the requirements of horizontal fixation, and they often leave the horizontal state during the assembly process, resulting in the test strip 2 being dislocated or falling off. Therefore, the card shell 1 of the present application performs dual limit fixation on the test strip 2. First, the test strip placement groove 13 is used to place the test strip 2 and can also limit and fix the test strip 2 to avoid horizontal displacement of the test strip 2. Second, the paper strip pressing piece 111 abuts against the absorbent paper 25 to further fix the test strip 2, so that the test strip 2 can be stably placed in the card shell 1 without being dislocated or falling off.

[0040] Beneficial effects of the embodiments of the present application: the card shell of the present application is formed by the upper cover and the bottom shell being buckled together, and the bottom shell is provided with a test strip placement slot, the test strip placement slot is used to place the test strip, and the test strip includes: a bottom plate and a sample pad, a binding pad, a reaction membrane and a blotting paper arranged on the bottom plate and connected in sequence along the length direction of the card shell; a paper strip pressing piece is provided on the side of the upper cover facing the bottom shell, and the paper strip pressing piece is located above the blotting paper and can abut against the blotting paper encapsulated in the card shell. The card shell of the present application performs a double limit fixation on the test strip, firstly, the test strip placement slot is used to place the test strip and can also limit and fix the test strip to avoid the horizontal displacement of the test strip, and secondly, the paper strip pressing piece abuts against the blotting paper to further fix the test strip, so that the test strip can be stably placed in the card shell without displacement or falling off, thereby ensuring the quality of the card shell and the subsequent test results.

[0041] Embodiment 2

[0042] The card holder of the first embodiment can not only meet the requirements of horizontal fixation but also limit the longitudinal displacement of the test strip, improve production efficiency, ensure product quality, have practical application value, and are worthy of promotion and application. In order to improve the application effect of the card holder of the present application, the present embodiment will further invent and design the card holder.

[0043] See also Figures 1 to 5 .

[0044] The card housing 1 of the embodiment of the present application is formed by an upper cover 11 and a bottom housing 12 that are buckled together. The bottom housing 12 is provided with at least one test strip placement slot 13 for placing the test strip 2 .

[0045] The test strip placement slot 13 of the embodiment of the present application is a rectangular test strip placement slot 13 surrounded by a plurality of limiting bars 14 .

[0046] The limit bar 14 includes a horizontal limit bar 141, a vertical limit bar 142 and a gantry-shaped limit bar 143, wherein the horizontal limit bar 141 and the gantry-shaped limit bar 143 enclose a length limiting space for the test strip 2, that is, the gantry-shaped limit bar 143 is placed toward the horizontal limit bar 141, and the space formed with the horizontal limit bar 141 is the length of the test strip 2, and the vertical limit bars 142 are relatively arranged to form a width limiting space for the test strip 2. The embodiment of the present application has no less than two vertical limit bars 142, and the vertical limit bars 142 are relatively arranged to form a width limiting space for the test strip 2. Furthermore, a separator bar 18 can be provided between the two test strip placement slots 13. In the detection application, after adding a sample to the sample pad 22, the card housing 1 with multiple test strips 2 needs to wait for a certain reaction time before reading the card and displaying the result. During the waiting reaction process, the sample on the sample pad 22 may flow horizontally, thereby contaminating and interfering with the sample on the adjacent sample pad 22 and affecting the detection result. The setting of the separator bar 18 in the embodiment of the present application can isolate the samples added to the adjacent sample pads 22 and ensure the accuracy of the inspection result.

[0047] At the same time, the separator strip 18 can also guide the installation of the test strip 2. That is, when the test strip 2 is placed at one end of the test strip placement slot 13, if the test strip 2 is long, there is a situation where the test strip 2 is inclined toward the adjacent test strip placement slot 13. The setting of the separator strip 18 can guide the installation of the test strip 2 and also avoid the situation where the test strip 2 is laterally displaced.

[0048] An auxiliary limiting rib 19 is also provided on the inner side of the limiting strip 14. For example, the auxiliary limiting rib 19 of the embodiment of the present application is correspondingly provided on the inner side of the two vertical limiting strips 142. The auxiliary limiting rib 19 extends into the groove for a short length, so as not to affect the installation of the test strip 2 on the test strip placement groove 13. Furthermore, the two auxiliary limiting ribs 19 can further assist in limiting the test strip 2 and further clamp the test strip 2, that is, when the test strip 2 is installed on the bottom shell 12 and the upper cover 11 is not covered in time, the test strip 2 can be prevented from falling off when the bottom shell 12 is transferred, thereby reducing the probability of rework.

[0049] Furthermore, the paper strip pressing piece 111 of the embodiment of the present application includes a spherical protrusion, a needle-shaped protrusion or a columnar protrusion. That is, the paper strip pressing piece 111 can be set as a spherical protrusion, a needle-shaped protrusion or a columnar protrusion, and the setting height of the protrusion is set to the height that can abut the absorbent paper 25 of the test strip 2 when the upper cover 11 is covered. The embodiment of the present application does not limit the number of protrusions, and the setting of the shape and number of protrusions belongs to the invention protection scope of the present application.

[0050] As shown in the embodiment of the present application, the paper strip press 111 is exemplarily a spherical protrusion and is arranged in a triangular shape. After the upper cover 11 and the bottom shell 12 are buckled together, the paper strip press 111 can press the absorbent paper 25 to further stabilize the absorbent paper 25. Since the absorbent paper 25 plays a role in absorbing water and draining, the pressing of the paper strip press 111 has no effect on the detection performance of the test strip 2.

[0051] Beneficial effects of the embodiments of the present application:

[0052] The card shell of the embodiment of the present application is provided with an auxiliary limiting edge on the inner side of the limiting strip. The auxiliary limiting edge is relatively short in length extending into the groove, which can not affect the installation of the test strip on the test strip placement groove and can further assist in limiting the test strip. That is, when the test strip is installed on the bottom shell and there is no time to cover the upper cover, the test strip can be prevented from falling off when the bottom shell is transferred, thereby reducing the chance of rework.

[0053] Embodiment 3

[0054] The embodiments of the present application provide an example to introduce the card shell.

[0055] See also Figures 1 to 6 .

[0056] The card housing 1 of the embodiment of the present application is formed by an upper cover 11 and a bottom housing 12 that are buckled together. The bottom housing 12 is provided with at least one test strip placement slot 13 for placing the test strip 2 .

[0057] The inner wall of the upper cover 11 or the bottom shell 12 is provided with a columnar structure 15, and the inner wall of the upper cover 11 or the bottom shell 12 without the columnar structure 15 is provided with a cavity column structure 16 embedded with the columnar structure 15, so that the upper cover 11 and the bottom shell 12 can be assembled by buckling.

[0058] The upper cover 11 is provided with a sample adding hole 112, which is recessed in the surface of the upper card shell 1 away from the bottom shell 12, and is located above the sample pad 22. The number of the sample adding holes 112 is set according to the number of the test strips 2. That is, a sample adding hole 112 is set above the sample pad 22 of each test strip 2.

[0059] The upper cover 11 is provided with an observation window 113, and the observation window 113 is located above the reaction membrane 24. The number of the observation windows 113 is set according to the number of the test strips 2, and an observation window 113 is set above the reaction membrane 24 of each test strip 2.

[0060] The card shell 1 further includes a positioning groove 17, which is respectively arranged on the side of the upper cover 11 and the bottom shell 12, and the positioning grooves 17 of the upper cover 11 correspond to the positioning grooves 17 of the bottom shell 12. The embodiment of the present application provides the positioning grooves 17 on the upper cover 11 and the bottom cover, so that the assembly operator can quickly buckle the upper cover 11 on the bottom shell 12 in a certain direction without repeatedly trying to assemble the bottom shell 12 and the upper cover 11, which plays a role in preventing mistakes and thereby improving the production efficiency of the card shell 1.

[0061] Furthermore, the upper cover 11 of the embodiment of the present application is also provided with a folded edge 114 on its periphery, and the bottom shell 12 is provided with a ridge 121 that can be buckled into the folded edge 114 .

[0062] When producing and assembling the cartridge 1 of the embodiment of the present application, the test strip 2 is placed on the test strip placement groove 13 in advance, and the upper cover 11 is placed above the bottom shell 12. The positioning groove 17 of the upper cover 11 corresponds to the positioning groove 17 of the bottom shell 12, and the columnar structure 15 corresponds to the cavity column structure 16. Force is applied to the cartridge 1 so that the columnar structure 15 moves downward along the height direction of the cavity column structure 16 and is inserted into the cavity of the cavity column structure 16. The convex ridge 121 is buckled into the folded edge 114 of the upper cover 11. At this time, the upper cover 11 and the bottom shell 12 are tightly fitted, and the paper strip pressing piece 111 presses the test strip 2. The entire cartridge 1 can be quickly installed and ensure that the test strip 2 is stable in the test strip placement groove 13. The color change of the reaction membrane 24 is observed through the observation window 113 provided on the upper cover 11, and the reaction readings on the reaction membrane 24 are analyzed and read, thereby completing the entire test work.

[0063] In the technical solution of the embodiment of the present application, a sample information area or a QR code area is provided on the upper surface of the upper cover. The sample information barcode area or the QR code area can be provided at one end of the upper cover close to the edge in the length direction. The sample information area can be used to fill in the sample information, and the QR code area can be used to spray the QR code to determine the card information, that is, it can cooperate with the QR code scanning and reading device to read the QR code when reading the card to obtain the card information, which is convenient for the management of the reading results of the card, realizes accurate corresponding recording of the detection information of each card, and ensures the accuracy of the detection results.

[0064] The embodiment of the present application also includes a fluorescent chromatography reagent card, which includes a fluorescent chromatography test strip 2 and a card shell 1 mentioned in the present application.

[0065] Illustratively, the fluorescent chromatography test strip 2 of the embodiment of the present application includes a base plate 21, on which a sample pad 22, a conjugation pad 23, a reaction membrane 24 such as a nitrocellulose membrane and an absorbent paper 25 are sequentially arranged along its length direction; the sample pad 22 partially overlaps with the conjugation pad 23, the conjugation pad 23 partially overlaps with the nitrocellulose membrane, and one side of the conjugation pad 23 is located below the sample pad 22, and the other side of the conjugation pad 23 is located above one side of the nitrocellulose membrane; the nitrocellulose membrane partially overlaps with the absorbent paper 25, and the other side of the nitrocellulose membrane is located below the absorbent paper 25; a detection line and a quality control line are arranged on the nitrocellulose membrane, and the detection line is close to the conjugation pad 23; the sample pad 22 is treated with a sample pad 22 treatment solution.

[0066] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0067] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0068] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0069] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A card case, wherein the card case (1) is formed by an upper cover (11) and a bottom case (12) being buckled together, and characterized in that: The bottom shell (12) is provided with at least one test strip placement slot (13), the test strip placement slot (13) being used to place a test strip (2), the test strip (2) comprising: a bottom plate (21), and a sample pad (22), a binding pad (23), a reaction membrane (24), and absorbent paper (25) arranged on the bottom plate (21) and connected in sequence along the length direction of the cartridge (1); A paper strip pressing piece (111) is provided on one side of the upper cover (11) facing the bottom shell (12); the paper strip pressing piece (111) is located above the absorbent paper (25) and can abut against the absorbent paper (25) encapsulated in the card shell (1).

2. The card shell according to claim 1, characterized in that: The test strip placement slot (13) is a rectangular test strip placement slot (13) enclosed by a plurality of limit strips (14).

3. The card shell according to claim 1, characterized in that: The inner wall of the upper cover (11) or the bottom shell (12) is provided with a columnar structure (15), and is also provided with a cavity column structure (16) that engages with the columnar structure (15), so that the upper cover (11) and the bottom shell (12) can be assembled by buckling.

4. The card shell according to claim 1, characterized in that: The upper cover (11) is provided with a sample loading hole (112), the sample loading hole (112) is recessed in the surface of the upper cover (11) away from the bottom shell (12), and the sample loading hole (112) is located above the sample pad (22); and / or, The upper cover (11) is provided with an observation window (113), and the observation window (113) is located above the reaction membrane (24).

5. The card shell according to claim 1, characterized in that: A separation bar (18) is provided between two adjacent test strip placement slots (13), and the separation bar (18) is located between the sample pads (22).

6. The card shell according to claim 1, characterized in that: The card shell (1) further comprises a positioning groove (17), wherein the positioning groove (17) is respectively arranged on the side of the upper cover (11) and the bottom shell (12), and the positioning grooves (17) of the upper cover (11) and the bottom shell (12) correspond to each other.

7. The card case according to claim 1, characterized in that: The upper cover (11) is also provided with a folded edge (114) on its periphery, and the bottom shell (12) is provided with a convex ridge (121) capable of being buckled into the folded edge (114).

8. The card case according to claim 1, characterized in that: The paper strip pressing piece (111) comprises a spherical protrusion, a needle-shaped protrusion or a columnar protrusion.

9. The card case according to claim 2, characterized in that: The limiting strip (14) comprises a transverse limiting strip (141), a vertical limiting strip (142) and a gantry-shaped limiting strip (143), wherein the transverse limiting strip (141) and the gantry-shaped limiting strip (143) enclose a length limiting space of the test strip (2), and the vertical limiting strip (142) is relatively arranged to form a width limiting space of the test strip (2), and an auxiliary limiting edge (19) is also arranged on the inner side of the limiting strip (14).

10. A fluorescence chromatography reagent card, comprising a fluorescence chromatography test strip (2) and a card housing (1) according to any one of claims 1 to 9.

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