A drying rack for sst2 immunochromatography reagent nc membrane bottom plate

Abstract

The utility model relates to a kind of drying rack of sST2 immunochromatography reagent NC membrane bottom plate, the drying rack is combined by bottom plate and support plate, the bottom plate and support plate each are provided with multiple parallel grooves, and the corresponding position groove is communicated, the middle part of the bottom plate groove is equipped with bottom support, and the bottom support is equipped with fence.This utility model is simple in structure, which can avoid the problem of mutual adhesion of adjacent NC membrane bottom plates during the drying process due to deformation, thereby affecting the test results.

Description

Technical Field

[0001] This utility model relates to a drying device for in vitro diagnostic reagent cards, specifically a drying rack for the NC membrane substrate of sST2 immunochromatographic reagent. Background Technology

[0002] Immunochromatographic assay reagents consist of two parts: a test strip and a casing (or outer shell). The test strip is typically composed of a sample pad, a conjugation pad, a detection pad (NC membrane), and an absorption pad, all stacked and fixed to a base plate. The NC membrane is first fixed to the base plate with T-lines and C-lines drawn, then dried. After drying, the other parts are assembled and cut. The NC membrane base plate to be dried is typically 30cm in length and 6-8cm in width; after being placed on a drying rack, the width becomes the height. Soluble growth-stimulating gene 2 protein (sST2) is a key biomarker for the diagnosis and prognostic assessment of heart failure. Due to its biological characteristics, the NC membrane needs to be longer for immunochromatographic detection of sST2. Based on research, our company's sST2 immunochromatographic reagent NC membrane base plate is determined to be 7.8cm. Therefore, the sST2 immunochromatographic reagent NC membrane base plate to be dried is 30×7.8cm.

[0003] The width of the drying chambers in existing drying racks is significantly greater than the thickness of the NC membrane substrate, while their depth is much smaller than the width of the NC membrane substrate. Furthermore, the NC membrane substrate is relatively long, and the drying chambers cannot provide the external force needed to maintain its straightness. During the drying process, as the temperature rises and time passes, the NC membrane substrate bends and deforms, coming into contact with and adhering to adjacent NC membrane substrates. This causes smudging of undried T and C lines, affecting test results and potentially reducing the yield of the finished product. This problem is even more pronounced with the 7.8cm wide sST2 immunochromatographic reagent NC membrane substrate. Considering production efficiency, it is also impossible to increase the spacing between the drying chambers beyond the width of the NC membrane substrate during bending and deformation.

[0004] Therefore, without affecting drying efficiency, further improvements need to be made to the drying rack structure to avoid the above situation. Utility Model Content

[0005] To address the aforementioned shortcomings of NC film base plate drying racks, this utility model provides a drying rack that prevents NC film base plates from contacting and sticking together after deformation. The specific technical solution is as follows:

[0006] A drying rack for the NC membrane substrate of sST2 immunochromatographic reagent, the drying rack being composed of a base plate and two support plates, wherein the two support plates are vertically fixed to both ends of the base plate, forming a... Shape structure, this The drying rack has multiple parallel grooves, also called drying troughs, on its inner bottom plate and support plate. The direction of the bottom plate grooves is perpendicular to the intersection line of the support plate and the bottom plate, and the positions of the bottom plate grooves and the support plate grooves correspond to each other. That is, the grooves on the bottom plate are connected to the corresponding grooves on the two support plates, and these three grooves can enclose a rectangular space. A base support is provided in the middle of the bottom plate groove, and a partition is provided on the base support.

[0007] Except for the central base support portion, the grooves on the base plate are all through-grooves, meaning they penetrate the entire base plate. This structure facilitates hot air circulation and improves drying efficiency. The base support is recessed into the base plate (i.e., the upper surface of the base support is lower than the upper surface of the base plate), which not only supports the NC film base plate but also, together with the corresponding grooves on the two support plates, provides a certain degree of fixation, ensuring the NC film base plate stands upright on the drying rack. Preferably, the base support has a perforated design, such as a mesh shape, which further ensures comprehensive hot air circulation.

[0008] The partition consists of a panel and inserts. The panel is composed of two parallel horizontal bars and posts. The posts are vertically fixed between the two horizontal bars. There are multiple posts, preferably cylindrical, which serve both as a barrier and reduce the contact area with the NC film base plate. The diameter of the posts is 0.5-1.5mm, and in a preferred embodiment, the diameter of the posts is 1mm.

[0009] The partition is fixed to the drying rack via a snap-fit. Specifically, the snap-fit ​​consists of two parallel sheet-like support pillars and a column support. The column support is parallel to the crossbar and vertically connected between the two support pillars. The tops of the two support pillars are fixed to the crossbar below the partition pillars. A locking platform is provided on opposite sides of the bottom of the platform. The distance between the locking platform and the column support is approximately equal to the thickness of the base support, and the distance between the two support pillars is approximately equal to the width of the base support. The partition is inserted vertically into the base support, parallel to the groove direction. The two sheet-like support pillars clamp the two sides of the base support, and the locking platform abuts against the bottom of the base support, thus locking the partition to the drying rack in place. It can be removed and disassembled when not needed. The number of partitions can be determined as needed, allowing for easy and flexible insertion and removal. The snap-fit ​​is preferably located in the middle of the partition. This partition effectively prevents adjacent NC film base plates from contacting and sticking together after deformation.

[0010] The deformation and adhesion of the NC membrane base plate during drying mainly occurs in the middle. The degree of deformation varies slightly depending on the material of the NC membrane base plate. Therefore, the length of the guardrail is preferably set to 1 / 5 to 1 / 3 of the length of the groove in the base plate. In a preferred embodiment of the sST2 immunochromatographic reagent NC membrane base plate drying rack, the length of the guardrail is 1 / 4 of the length of the groove in the base plate. The length of the guardrail is the same as the length of the crossbar.

[0011] Taking into account factors such as isolation effect, hot air circulation and material cost, the height of the partition is set to be no less than 75% of the height of the NC film bottom plate in the drying rack, preferably 80%-85%.

[0012] Due to the implementation of the above technical solutions, this utility model has the following advantages compared with the prior art: it avoids the adjacent NC film base plates from sticking together due to deformation during the drying process, which would cause the undried T-line and C-line to bleed and affect the test results or reduce the finished product qualification rate; it does not require increasing the spacing of the drying tank, thus ensuring the drying efficiency; the partition and the base are detachably fixed, which is convenient for cleaning and flexible in use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the NC film bottom plate drying rack of this utility model;

[0014] Figure 2 This is a schematic diagram of the partition of the NC film bottom plate drying rack of this utility model;

[0015] Figure label:

[0016] 1. Base plate 2. Support plate 3. Drying trough 4. Base support 5. Partition 6. Support column

[0017] 7. Platform; 8. Support column; 9. Balustrade post; 10. Horizontal bar. Detailed Implementation

[0018] like Figure 1 As shown, this embodiment provides a drying rack for the NC membrane substrate of sST2 immunochromatographic reagent. The drying rack is composed of a base plate 1 and two support plates 2. The two support plates 2 are vertically fixed to both ends of the base plate 1. The base plate 1 and support plates 2 inside the drying rack are provided with multiple parallel grooves (drying grooves) 3, and the direction of the grooves 3 on the base plate is perpendicular to the intersection line of the support plates 2 and the base plate 1. The grooves 3 on the base plate 1 are connected to the corresponding grooves 3 on the two support plates 2. The three grooves 3 can enclose a rectangular space.

[0019] A base support 4 is provided in the middle of the groove of the base plate 1, and a partition 5 is provided on the base support 4. The groove 3 on the base plate 1, except for the part of the base support 4, extends through the base plate 1. The base support 4 is grid-shaped and recessed into the base plate 1.

[0020] like Figure 2 As shown, the partition 5 consists of a panel and a clip. The panel is composed of two parallel horizontal bars 10 and multiple posts 9. The posts 9 are vertically fixed between the two horizontal bars 10. The posts 9 are cylindrical and have a diameter of 1 mm.

[0021] The partition 5 is fixed to the drying rack via a clip. The clip consists of two parallel sheet-like pillars 6 and a column support 8. The column support 8 is parallel to the crossbar 10 and vertically connected between the two pillars 6. The tops of the two pillars 6 are vertically fixed to the crossbar 10 below the railing post 9. A locking platform 7 is provided on the opposite side of its bottom. The distance between the locking platform 7 and the column support 8 is approximately equal to the thickness of the base 4, and the distance between the two pillars 6 is approximately equal to the width of the base 4.

[0022] Therefore, the length of the guardrail is 1 / 4 of the length of the groove in the base plate 1. The height of the guardrail is 80% of the height of the NC film base plate in the drying rack.

[0023] The present utility model has been described in detail above, with the purpose of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A drying rack for the NC membrane substrate of sST2 immunochromatographic reagent, characterized in that: The drying rack consists of a base plate and two support plates, and is in the shape of... The drying rack has a three-dimensional structure, with multiple parallel grooves on the bottom plate and support plate inside. The grooves on the bottom plate are connected to the corresponding grooves on the two support plates. A base support is provided in the middle of the groove on the bottom plate, and a partition is provided on the base support.

2. The drying rack according to claim 1, characterized in that: The partition consists of a panel and a card insert, wherein the bottom inner side of the card insert has a card holder that can engage with the base tray.

3. The drying rack according to claim 2, characterized in that: The balustrade consists of two horizontal bars and multiple posts, with the posts vertically fixed between the two horizontal bars.

4. The drying rack according to claim 3, characterized in that: The railing posts are cylindrical with a diameter of 0.5-1.5 mm.

5. The drying rack according to claim 3, characterized in that: The diameter of the railing post is 1 mm.

6. The drying rack according to claim 2, characterized in that: The length of the guardrail is 1 / 5 to 1 / 3 of the length of the groove in the base plate.

7. The drying rack according to claim 2, characterized in that: The length of the guardrail is 1 / 4 of the length of the groove in the base plate.

8. The drying rack according to claim 1, characterized in that: The height of the partition is not less than 75% of the height of the NC film bottom plate in the drying rack.

9. The drying rack according to claim 1, characterized in that: The height of the partition is 80-85% of the height of the NC film bottom plate in the drying rack.

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