Fluorescence immunochromatography test paper card for detecting D-dimer

By adding a cover to the outside of the fluorescent immunochromatographic test strip and using magnetic material at the bottom of the test strip, the problems of test strip contamination and spillage caused by movement were solved, thus achieving stability and signal enhancement of the test strip.

CN223526364UActive Publication Date: 2025-11-07SHIJIAZHUANG BOYANG BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422625828.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-11-07
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

Existing fluorescent immunochromatographic test strips are susceptible to external contamination during use, and they are prone to shifting when laid flat, causing the test liquid to spill.

Method used

An adjustable cover is set on the outside of the test strip assembly, and the cover is installed at the bottom of the liner. The stability of the liner is improved by using a suction cup, and the signal strength is enhanced by using a base plate made of magnetic nanomaterials and plastic at the bottom of the test strip.

Benefits of technology

It effectively prevents the test strip components from being contaminated during the transfer process, while enhancing the display effect of the detection signal and improving the stability and detection accuracy of the test strip.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fluorescence immunochromatography test paper card for detecting D-dimer, and particularly relates to the technical field of test paper cards, the fluorescence immunochromatography test paper card comprises a test paper card assembly for detecting D-dimer, the test paper card assembly comprises a lining plate, the top of the lining plate is fixedly provided with sample paper, binding paper, a test paper strip and absorbent paper in sequence from left to right, one end of the combination paper is arranged at the top of the test strip, one side of the top end of the test strip is provided with a detection line T, the other side of the top end of the test strip is provided with a contrast line C, the outer side of the lining plate is sleeved with a protection assembly, the protection assembly comprises a housing, and spring bolts fixedly penetrate through the centers of the outer walls of the front side and the rear side of the housing. The position-adjustable housing is arranged on the outer side of the test paper card assembly, the housing is mounted at the bottom of the lining plate, the lining plate can be supported to be horizontally placed, meanwhile, the firmness of the lining plate can be improved through the suction cup, the housing covers the outer side of the lining plate for sealing, and the test paper card assembly can be prevented from being polluted in the transfer process.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a test paper card technical field more specifically, it is a kind of fluorescent immunoassay test paper card for detecting D-dimer. BACKGROUND

[0002] D-dimer is the specific degradation product produced by activated factor XIII cross-linking and then hydrolysis by plasmin, and it is a specific fibrinolysis marker, D-dimer is derived from the cross-linked fibrin clot dissolved by plasmin, and plasma D-dimer determination is a test for understanding secondary fibrinolysis function.In the D-dimer, fluorescent immunoassay test paper card needs to be used, and the fluorescent immunoassay test paper card is detected by using fluorescent immunoassay technology, and the fluorescent immunoassay technology is a new type of membrane detection technology based on the specificity of antigen-antibody immune response, and the fluorescent immunoassay test paper card is usually composed of sample paper, combination paper, test paper strip, water absorption strip and bottom lining.

[0003] For example, the prior art with publication number CN214703651U discloses a fluorescent immunoassay test strip and a fluorescent immunoassay detection card, which optimizes the position of the detection line and is beneficial to increasing the linearity range of the test strip.

[0004] However, the above-mentioned prior art has the following problems when in use: the existing fluorescent immunoassay test paper card is exposed to the outside during transfer when opening the package for use, which is easy to be contaminated by the external environment, and the bottom of the test paper card is flat, so it will move when placed flat, causing the detection liquid to spill, based on this, the utility model provides a fluorescent immunoassay test paper card for detecting D-dimer. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a fluorescent immunoassay test paper card for detecting D-dimer, which is provided with a position-adjustable cover outside the test paper card assembly, and the cover is installed at the bottom of the lining, which can support the lining to be placed flat, and the suction cup can improve the firmness of the lining, and the cover is sealed outside the lining, which can avoid contamination during transfer of the test paper card assembly, to solve the problems in the above-mentioned background art.

[0006] To achieve the above object, the utility model provides following technical scheme: a kind of fluorescent immunoassay test strip card of detecting D-dimer, including the test strip card component of detecting D-dimer, the test strip card component includes backing plate, sample paper, combination paper, test strip and bibulous paper are sequentially fixed with being equipped with in the top of backing plate from left to right, one end of combination paper is equipped at the top of test strip, one side of the top of test strip is equipped with detection line T, the other side of the top of test strip is equipped with control line C, protective assembly is equipped with in the outside of backing plate, protective assembly includes cover shell, spring latch is fixedly penetrated in the center of the outer wall of cover shell two sides, slot is opened in the center of the outer wall of backing plate two sides, spring latch is inserted with slot, multiple suction cups are fixedly embedded in the top of cover shell.

[0007] In a preferred embodiment, the cover shell is provided with a moving cavity on one side, and each suction cup is provided with a ventilation hole on one side of the bottom end, which is in communication with the inside of the moving cavity, so that the ventilation of the suction cup balances the pressure in the suction cup.

[0008] In a preferred embodiment, a moving plate is slidably arranged in the inside of the moving cavity, and a plurality of plugging plugs are fixedly arranged on the top end of the moving plate and matched with the ventilation holes, and the plugging plugs are respectively inserted in the ventilation holes, so that the ventilation of the suction cup is sealed by adjusting the position of the plugging plugs, thereby facilitating the disassembly of the cover shell by the operator.

[0009] In a preferred embodiment, two limiting grooves are formed in the inner walls of the front and rear sides of the cover shell, and two limiting blocks are fixedly arranged on the outer walls of the front and rear sides of the backing plate, and the limiting blocks are arranged in the limiting grooves, so that the cover shell is quickly installed by cooperation of the limiting blocks and the limiting grooves.

[0010] In a preferred embodiment, an opening is formed in the bottom end of the backing plate, and a bottom plate is inserted in the opening, and the bottom plate is made of magnetic nano material and plastic, so that the bottom plate has magnetism, thereby enhancing the amplification signal of the test strip.

[0011] In a preferred embodiment, a positioning block is fixedly arranged on each side of the bottom plate, and a positioning groove matched with the positioning block is formed in each side of the bottom of the opening, and the positioning block is arranged in the positioning groove, so that the bottom plate is quickly installed.

[0012] In a preferred embodiment, a plurality of rubber clamping blocks are fixedly arranged on the top end of each positioning block, and a plurality of clamping grooves matched with the rubber clamping blocks are formed in the inner walls of the bottom end of each positioning groove, and the rubber clamping blocks are clamped with the clamping grooves, so as to improve the firmness between the bottom plate and the backing plate.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] 1. The utility model discloses a position adjustable cover is arranged outside test paper card subassembly, installs the cover in the bottom of the lining plate, can support the lining plate to lie down, and the sucker can improve the firmness of the lining plate, the cover is sealed outside the lining plate, can avoid the test paper card subassembly to be polluted in the transfer process.

[0015] 2. The utility model discloses a bottom plate that sets up magnetic nanometer material and plastic material at test strip bottom, and the magnetism of magnetic nanometer material can make test strip have stronger luminous intensity, makes the detection line T and contrast line C on test strip can obtain deeper band color on test line, thereby realizes the purpose of amplifying detection signal. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the cover and lining plate structure diagram of the utility model;

[0018] Figure 3 It is Figure 2 The bottom view of

[0019] Figure 4 It is the lining plate section view of the utility model;

[0020] Figure 5 It is Figure 4 The enlarged view of A part in

[0021] The figure mark is: 1, test paper card subassembly;2, protection subassembly;3, moving cavity;4, air hole;5, moving plate;6, block plug;7, limit slot;8, limit block;9, opening;10, bottom plate;11, positioning block;12, positioning slot;13, rubber clamping block;14, clamping slot;

[0022] 101, lining plate;102, sample paper;103, combination paper;104, test strip;105, water absorption paper;106, detection line T;107, contrast line C;

[0023] 201, cover;202, spring bolt;203, slot;204, sucker. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0025] Refer to the drawings in the specificationFigures 1-5 The utility model provides a kind of fluorescent immunoassay test strip card for detecting D-dimer, including the test strip card component 1 for detecting D-dimer, the test strip card component 1 includes backing plate 101, sample paper 102, combination paper 103, test strip 104 and bibulous paper 105 are sequentially fixed with being equipped with in the top from left to right of backing plate 101, one end of combination paper 103 is equipped at the top of test strip 104, detection line T 106 is equipped in the top one side of test strip 104, control line C 107 is equipped in the top other side of test strip 104;

[0026] Protective assembly 2 is sleeved on the outside of backing plate 101, protective assembly 2 includes cover 201, spring latch 202 is fixedly penetrated in the center of the outer wall of both sides of cover 201, plug groove 203 is formed in the center of the outer wall of both sides of backing plate 101, spring latch 202 is inserted with plug groove 203, a plurality of suction cups 204 are fixedly embedded in the top of cover 201;

[0027] In order to facilitate the disassembly of cover 201, moving cavity 3 is formed in one side of cover 201, air hole 4 is formed in the bottom one side of each suction cup 204 and communicated with the inside of moving cavity 3, so that the air balance of suction cup 204 is balanced, moving plate 5 is slidably arranged in the inside of moving cavity 3, a plurality of plugging plugs 6 are fixedly arranged on the top of moving plate 5 and matched with air hole 4, a plurality of plugging plugs 6 are respectively inserted in a plurality of air holes 4, the air tightness of suction cup 204 is realized by adjusting the position of plugging plug 6, so as to facilitate the operator to disassemble cover 201.

[0028] In use, the operator first removes cover 201 from backing plate 101, then reversely installs cover 201 to the bottom of backing plate 101, uses cover 201 to support the horizontal placement of backing plate 101, and uses a plurality of suction cups 204 on cover 201 to be adsorbed on the plane, so as to improve the stability of backing plate 101, then drops the liquid to be detected on sample paper 101, the liquid wets combination paper 103 and test strip 104, and the detection line T 106 and control line C 107 on test strip 104 react, so as to facilitate the judgment of D-dimer in the liquid, because it is prior art, detailed description is not made, when it is necessary to transfer, the operator first disassembles cover 201, then covers it outside backing plate 101, which can play a protective role and avoid the pollution of test strip card component 1 in the transfer process.

[0029] Referring to the description attached Figures 1-5 Two limiting grooves 7 are formed in the inner wall of both sides of cover 201, two limiting blocks 8 are fixedly arranged on the outer wall of both sides of backing plate 101, limiting block 8 is arranged in limiting groove 7, and limiting block 8 is matched with limiting groove 7, so as to facilitate the rapid installation of cover 201;

[0030] The bottom end of the lining plate 101 is provided with an opening 9, and a bottom plate 10 is inserted into the opening 9, the bottom plate 10 is made of magnetic nano material and plastic, so that the bottom plate 10 has magnetism, so as to enhance the amplification signal of the test strip 104, both sides of the bottom plate 10 are fixedly provided with positioning blocks 11, both sides of the bottom of the opening 9 are provided with positioning grooves 12 matched with the positioning blocks 11, the positioning blocks 11 are arranged in the positioning grooves 12, so as to facilitate quick installation of the bottom plate 10.

[0031] Furthermore, a plurality of rubber clamping blocks 13 are fixedly arranged at the top end of each positioning block 11, a plurality of clamping grooves 14 matched with the rubber clamping blocks 13 are arranged on the inner wall of the bottom end of each positioning groove 12, the rubber clamping blocks 13 are clamped in the clamping grooves 14, so as to improve the firmness between the bottom plate 10 and the lining plate 101.

[0032] By arranging the bottom plate 10 in the opening 9 of the bottom of the lining plate 101, the bottom plate 10 is made of magnetic nano material and plastic material, the magnetic nano material has magnetism, so that the test strip 104 has stronger luminous intensity, the detection line T106 and the control line C107 on the test strip 104 can obtain deeper strip color on the test line, so as to achieve the purpose of amplifying the detection signal.

[0033] Finally, the above-mentioned is only preferred embodiment of the present application, and is not used for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fluorescent immunochromatographic test strip card for detecting D-dimer, characterized by: The application relates to a test paper card assembly (1) comprising a test paper card assembly (1) comprising a backing plate (101), wherein a sample paper (102), a combination paper (103), a test paper strip (104) and a water absorption paper (105) are sequentially fixed on the top of the backing plate (101) from left to right, the combination paper (103) is arranged at the top of the test paper strip (104), a detection line T (106) is arranged on one side of the top end of the test paper strip (104), and a control line C (107) is arranged on the other side of the top end of the test paper strip (104); The outer side of the backing plate (101) is provided with a protection assembly (2), the protection assembly (2) comprises a cover shell (201), spring latches (202) are fixedly arranged in the center of the outer walls of the front and back sides of the cover shell (201), and the center of the outer walls of the front and back sides of the backing plate (101) is provided with a slot (203); the spring latches (202) are inserted into the slots (203); and a plurality of suction cups (204) are fixedly arranged on the top end of the cover shell (201). 2.The fluorescence immunochromatographic test strip card for detecting D-dimer according to claim 1, characterized in that: A moving cavity (3) is formed in one side of the cover shell (201), and a ventilation hole (4) in communication with the moving cavity (3) is formed in one side of the bottom end of each suction cup (204). 3.The fluorescence immunochromatographic test strip card for detecting D-dimer according to claim 2, characterized in that: A moving plate (5) is slidably arranged in the moving cavity (3), a plurality of plugging plugs (6) matched with the ventilation holes (4) are fixedly arranged on the top end of the moving plate (5), and the plugging plugs (6) are respectively inserted into the ventilation holes (4).

4. The fluorescence immunochromatographic test strip card for detecting D-dimer according to claim 1, characterized in that: Two limiting grooves (7) are formed in the inner walls of the front and back sides of the cover shell (201), and two limiting blocks (8) are fixedly arranged on the outer walls of the front and back sides of the backing plate (101) and arranged in the limiting grooves (7).

5. The fluorescence immunochromatographic test strip card for detecting D-dimer according to claim 1, characterized in that: An opening (9) is formed in the bottom end of the backing plate (101), and a bottom plate (10) is inserted into the opening (9).

6. The fluorescence immunochromatographic test strip card for detecting D-dimer according to claim 5, characterized in that: Positioning blocks (11) are fixedly arranged on the two sides of the bottom plate (10), positioning grooves (12) matched with the positioning blocks (11) are formed in the bottom part of the opening (9), and the positioning blocks (11) are arranged in the positioning grooves (12).

7. The fluorescence immunochromatographic test strip card for detecting D-dimer according to claim 6, characterized in that: A plurality of rubber clamping blocks (13) are fixedly arranged on the top ends of the two positioning blocks (11), a plurality of clamping grooves (14) matched with the rubber clamping blocks (13) are formed in the inner walls of the bottom ends of the two positioning grooves (12), and the rubber clamping blocks (13) are clamped in the clamping grooves (14).

Citation Information

Patent Citations

  • Fluorescence immunochromatography test strip and fluorescence immunochromatography detection card

    CN214703651U