A card case for a glycated hemoglobin detection card

Abstract

The utility model relates to a card shell for glycosylated hemoglobin detection card belongs to the technical field of detection card, the utility model discloses through setting upper cover, the lower cover joint forms the card shell to provide the external protection of glycosylated hemoglobin detection card, can effectively avoid sample exposure, wherein, the upper cover part is equipped with chromatography liquid tank hole and strip's sample hole, not only can guarantee the function of original drop chromatography liquid, still can simulate linear sample's process, more favorably even lateral chromatography, through setting up the reflection platform to replace the original reflection strip to realize not contact chromatography membrane, can effectively avoid the sample accumulation caused by the capillary phenomenon after adding chromatography liquid and cause the test anomaly, can improve the reflectivity, avoid external light interference.

Description

Technical Field

[0001] This utility model relates to a card shell for a glycated hemoglobin test card, belonging to the field of test card technology. Background Technology

[0002] The boric acid affinity lateral chromatography glycated hemoglobin test strip is an in vitro diagnostic reagent designed based on the principle of boric acid affinity chromatography. It is mainly used for the quantitative detection of glycated hemoglobin (HbA1c) levels in human whole blood samples. This test strip typically consists of a chromatographic membrane, absorbent paper, and a base plate.

[0003] Currently, most boric acid affinity lateral chromatography glycated hemoglobin test strips are bare test strips, posing a risk of sample exposure during use. Furthermore, semi-quantitative linear loading can result in over- or under-loading of the sample, potentially leading to inaccurate results. Additionally, poor contact between the absorbent paper and the chromatographic membrane can occur during testing, resulting in poor chromatography, error messages, or inaccurate results.

[0004] Therefore, there is an urgent need to find a solution that can overcome the above-mentioned defects in order to solve problems such as sample exposure risk, sample loading error and chromatography stability. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a card housing for a glycated hemoglobin (HbA1c) test card. The HbA1c test card includes a base plate, a chromatography membrane disposed above the base plate and at least partially covering a portion of the base plate, and absorbent paper. At least a portion of the absorbent paper covers the chromatography membrane. The base plate is provided with a reflective aperture. The card housing includes:

[0006] The top cover has a chromatography solvent reservoir and a sample loading reservoir corresponding to the position of the chromatography membrane. The chromatography solvent reservoir includes a chromatography solvent hole and a first inclined groove connected to the outer periphery of the chromatography solvent hole. The sample loading reservoir includes a sample loading hole and a second inclined groove connected to the outer periphery of the sample loading hole. Both the first and second inclined grooves are recessed inward toward the direction where the glycated hemoglobin test card is located. The top cover is also provided with a reflection platform corresponding to the position of the reflection hole.

[0007] The lower cover is joined to the upper cover. The lower cover has a reflective opening at the corresponding reflective hole position and is provided with a limiting structure to cooperate with the glycated hemoglobin test card.

[0008] Furthermore, the chromatography fluid hole is a circular hole, and the first inclined groove and the chromatography fluid hole form a first and second secondary boss structure on the side of the upper cover near the glycated hemoglobin test card. The first and second secondary boss structure includes a first conical platform formed on the side of the first inclined groove near the glycated hemoglobin test card and a first annular platform connecting the edge of the chromatography fluid hole near the glycated hemoglobin test card.

[0009] Furthermore, the sample loading hole is a strip-shaped hole, and the second inclined groove and the sample loading hole form a second secondary boss structure on the side of the upper cover near the glycated hemoglobin test card. The second secondary boss structure includes a second conical platform formed on the side of the second inclined groove near the glycated hemoglobin test card, and a second annular platform connecting the side edge of the sample loading hole near the glycated hemoglobin test card.

[0010] Furthermore, the reflective platform is a planar bump structure located directly above the reflective aperture, and the reflective platform does not contact the chromatography membrane and is parallel to the chromatography membrane.

[0011] Furthermore, the top cover is provided with ribs near the reflective platform, and the ribs are located above the overlapping portion of the absorbent paper and the chromatography membrane.

[0012] Furthermore, the upper cover is provided with multiple insertion holes, and the lower cover is provided with multiple insertion parts corresponding to the positions of the insertion holes. The upper cover and the lower cover are joined together by the cooperation of the insertion holes and the insertion parts.

[0013] Furthermore, the insertion hole has a cylindrical structure, and the insertion member has a cylindrical structure.

[0014] Furthermore, the limiting structure includes C-shaped limiting members on both sides of the reflective port, and the two ends of the glycated hemoglobin test card can be fixed in the two C-shaped limiting members respectively.

[0015] The beneficial effects of this utility model are:

[0016] This invention provides external protection for the glycated hemoglobin test card by setting an upper and lower cover that, when joined together, form a housing, effectively preventing sample exposure. The upper cover has a chromatography solvent groove and a strip-shaped sample loading hole, which not only ensures the original function of adding chromatography solvent but also simulates a linear sample loading process, which is more conducive to uniform lateral chromatography. By setting a reflective platform instead of the original reflective strip, it achieves non-contact with the chromatography membrane, effectively avoiding sample accumulation caused by capillary action after adding chromatography solvent, which can lead to test abnormalities. It can also improve reflectivity and avoid interference from external light. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure after the retaining clips are engaged in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a glycated hemoglobin detection card in one embodiment of the present invention;

[0019] Figure 3 This is an exploded view of the jamming casing in one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the upper shell structure in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the lower shell structure in one embodiment of the present invention.

[0022] In the diagram: 1. Top cover; 2. Bottom cover; 3. Base plate; 4. Chromatography membrane; 5. Absorbent paper; 6. Reflection hole; 11. First inclined groove; 111. First conical platform; 12. Second inclined groove; 121. Second conical platform; 13. Chromatography solution hole; 131. First annular platform; 14. Sample loading hole; 141. Second annular platform; 15. Reflection platform; 16. Rib; 17. Insertion hole; 21. Reflection port; 22. C-shaped limiting component; 23. Insertion component. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] like Figure 2As shown, the glycated hemoglobin test card includes a base plate 3, a chromatography membrane 4 disposed above the base plate 3 and covering at least a portion of the base plate 3, and absorbent paper 5. A portion of the left end of the absorbent paper 5 overlaps the chromatography membrane 4. A reflective hole 6 is provided in the middle of the base plate 3.

[0028] This invention provides a card housing for a glycated hemoglobin test card, the card housing comprising an upper cover 1 and a lower cover 2. The upper cover 1 is provided with multiple insertion holes 17, and the lower cover 2 is provided with multiple insertion parts 23 corresponding to the insertion holes 17. The upper cover 1 and the lower cover 2 are joined together through the cooperation of the insertion holes 17 and the insertion parts 23. Preferably, the insertion holes 17 are cylindrical and the insertion parts 23 are columnar, facilitating quick insertion and joining of the upper cover 1 and the lower cover 2.

[0029] The upper cover 1 has a chromatography solvent slot and a sample loading slot corresponding to the position of the chromatography membrane 4. Both the chromatography solvent slot and the sample loading slot are located above the chromatography membrane 4. The chromatography solvent slot includes a chromatography solvent hole 13 and a first inclined groove 11 connected to the outer periphery of the chromatography solvent hole 13. The sample loading slot includes a sample loading hole 14 and a second inclined groove 12 connected to the outer periphery of the sample loading hole 14. Both the first inclined groove 11 and the second inclined groove 12 are recessed inward toward the direction where the glycated hemoglobin test card is located.

[0030] Further, the chromatography fluid orifice 13 is a circular orifice. The first inclined groove 11 and the chromatography fluid orifice 13 form a first and second secondary protrusion structure on the side of the upper cover 1 near the glycated hemoglobin test card. The first and second secondary protrusion structure includes a first conical platform 111 formed on the side of the first inclined groove 11 near the glycated hemoglobin test card, and a first annular platform 113 connecting the side edge of the chromatography fluid orifice 13 near the glycated hemoglobin test card. The sample loading orifice 14 is a strip-shaped orifice. The second inclined groove 12 and the sample loading orifice 14 form a second and second secondary protrusion structure on the side of the upper cover near the glycated hemoglobin test card. The second and second secondary protrusion structure includes a second conical platform 121 formed on the side of the second inclined groove 12 near the glycated hemoglobin test card, and a second annular platform 141 connecting the side edge of the sample loading orifice 13 near the glycated hemoglobin test card. The structure of the secondary platform allows the chromatography solvent and sample solution to come into contact with the chromatography membrane more easily, avoiding retention. At the same time, the sample loading well 14 is designed as a strip-shaped well, which can simulate linear sample loading and is more conducive to uniform lateral chromatography of the sample. It can also match capillary quantitative sample loading, replacing semi-quantitative sample loading, making sample loading more accurate and avoiding the situation of loading too much or too little sample.

[0031] The upper cover 1 is also provided with a reflective platform 15 corresponding to the position of the reflective hole 6; the reflective platform 15 is a planar protrusion structure and is located directly above the reflective hole 6. The reflective platform does not contact the chromatography membrane 4 and is parallel to the chromatography membrane 4, which can effectively avoid sample accumulation caused by capillary phenomenon after adding chromatography liquid and thus avoid test abnormalities. At the same time, it can improve reflectivity and avoid interference from external light.

[0032] Furthermore, the upper cover 1 is provided with a rib 16 near the reflective platform. The rib 16 is located above the overlapping part of the absorbent paper 5 and the chromatography membrane 4. The rib 16 can press down on the overlapping part of the absorbent paper 5 and the chromatography membrane 4, which can ensure good contact between the absorbent paper 5 and the membrane and prevent poor contact between the absorbent paper 5 and the chromatography membrane 4 after the absorbent paper 5 absorbs liquid, thus affecting the detection results. This is beneficial to the lateral chromatography of the glycated hemoglobin test card.

[0033] The lower cover 2 is joined to the upper cover 1. The lower cover 2 has a reflection port 21 corresponding to the position of the reflection hole 6 and is provided with a limiting structure for cooperating with the glycated hemoglobin test card. The limiting structure includes C-shaped limiting members 22 on both sides of the reflection port 21. The two ends of the glycated hemoglobin test card can be fixed in the two C-shaped limiting members 22 respectively to prevent the glycated hemoglobin test card from sliding and affecting the detection.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A casing for a glycated hemoglobin (HbA1c) test card, the HbA1c test card comprising a base plate, a chromatography membrane disposed above the base plate and at least covering a portion thereof, and absorbent paper, wherein at least a portion of the absorbent paper covers the chromatography membrane, and the base plate is provided with a reflective aperture, characterized in that, The casing includes: The top cover has a chromatography solvent reservoir and a sample loading reservoir corresponding to the position of the chromatography membrane. The chromatography solvent reservoir includes a chromatography solvent hole and a first inclined groove connected to the outer periphery of the chromatography solvent hole. The sample loading reservoir includes a sample loading hole and a second inclined groove connected to the outer periphery of the sample loading hole. Both the first and second inclined grooves are recessed inward toward the direction where the glycated hemoglobin test card is located. The top cover is also provided with a reflection platform corresponding to the position of the reflection hole. The lower cover is joined to the upper cover. The lower cover has a reflective opening at the corresponding reflective hole position and is provided with a limiting structure to cooperate with the glycated hemoglobin test card.

2. The card case according to claim 1, characterized in that, The chromatography fluid orifice is a circular orifice. The first inclined groove and the chromatography fluid orifice form a first and second secondary protrusion structure on the side of the upper cover near the glycated hemoglobin test card. The first and second secondary protrusion structure includes a first conical platform formed on the side of the first inclined groove near the glycated hemoglobin test card and a first annular platform connecting the edge of the chromatography fluid orifice near the glycated hemoglobin test card.

3. The card case according to claim 2, characterized in that, The sample loading hole is a strip-shaped hole. The second inclined groove and the sample loading hole form a second secondary boss structure on the side of the upper cover near the glycated hemoglobin test card. The second secondary boss structure includes a second conical platform formed on the side of the second inclined groove near the glycated hemoglobin test card and a second annular platform connecting the side edge of the sample loading hole near the glycated hemoglobin test card.

4. The card case according to claim 3, characterized in that, The reflective platform is a planar bump structure located directly above the reflective aperture. The reflective platform does not contact the chromatography membrane and is parallel to the chromatography membrane.

5. The card case according to claim 4, characterized in that, The top cover has ribs near the reflective platform, and the ribs are located above the overlapping portion of the absorbent paper and the chromatography membrane.

6. The casing according to claim 1, characterized in that, The upper cover is provided with multiple insertion holes, and the lower cover is provided with multiple insertion parts corresponding to the insertion hole positions. The upper cover and the lower cover are joined together by the cooperation of the insertion holes and insertion parts.

7. The card case according to claim 6, characterized in that, The insertion hole has a cylindrical structure, and the insertion component has a cylindrical structure.

8. The card case according to claim 1, characterized in that, The limiting structure includes C-shaped limiting members on both sides of the reflective port, and the two ends of the glycated hemoglobin test card can be fixed in the two C-shaped limiting members respectively.

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