Test card structure

Abstract

The utility model discloses a test card structure which comprises test paper arranged in a lower shell through a fixing assembly, and an IgM (Immunoglobulin M) detection line and an IgG (Immunoglobulin G) detection line are arranged in a detection area of the test paper; the upper inserting column and the upper inserting sleeve are arranged on the top surface of the inner cavity of the upper shell and are respectively distributed on two sides of the inner cavity of the upper shell in the width direction; the bottom inserting sleeve and the bottom inserting column are arranged on the bottom face of an inner cavity of the lower shell, the bottom inserting sleeve is matched with the upper inserting column in an inserting mode, and the bottom inserting column is matched with the upper inserting sleeve in an inserting mode; and the positioning notches are arranged at one ends of the upper shell and the lower shell in the length direction. According to the scheme, the upper shell and the lower shell are assembled through insertion of the upper insertion columns and the bottom insertion sleeves and insertion of the upper insertion sleeves and the bottom insertion columns, through distribution of the upper insertion columns and the upper insertion sleeves, the upper shell and the lower shell are assembled in a unique mode, the upper shell and the lower shell are matched with the positioning notches, and wrong assembly of the upper shell and the lower shell can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of test cards, and particularly relates to a test card structure. Background Art

[0002] When testing immunoglobulins, in order to reduce the waste of test cards, a test card that can simultaneously detect IgG (immunoglobulin G), the main component of immunoglobulins in serum, and IgM (Immunoglobulin M), an immunoglobulin item, has been developed; during the assembly of this test card, an incorrect assembly phenomenon where the upper shell and the lower shell are not in the corresponding direction easily occurs, making the sample addition hole of the upper shell unable to accurately correspond to the sample addition area of the test strip, thus affecting the test results. Content of the Utility Model

[0003] The utility model provides a test card structure. The upper shell and the lower shell are assembled through the insertion of the upper insertion posts and the bottom insertion sleeves, and the insertion of the upper insertion sleeves and the bottom insertion posts. Through the distribution of the upper insertion posts and the upper insertion sleeves, the assembly method of the upper shell and the lower shell is unique. With the cooperation of the positioning notch, incorrect assembly of the upper shell and the lower shell can be avoided.

[0004] To solve the above technical problems, the technical solution of the utility model is as follows:

[0005] A test card structure provided by the utility model includes:

[0006] A test strip disposed inside the lower shell through a fixing component, and an IgM detection line and an IgG detection line are disposed in the detection area of the test strip;

[0007] A sample addition hole and an observation window penetrating through the surface of the upper shell, the sample addition hole corresponds to the sample addition area of the test strip, and the observation window corresponds to the detection area of the test strip;

[0008] Upper insertion posts and upper insertion sleeves disposed on the top surface of the inner cavity of the upper shell, the upper insertion posts and the upper insertion sleeves are respectively distributed on both sides in the width direction of the inner cavity of the upper shell, and a plurality of upper insertion posts and upper insertion sleeves are distributed along the length direction of the upper shell;

[0009] Bottom insertion sleeves and bottom insertion posts disposed on the bottom surface of the inner cavity of the lower shell, the bottom insertion sleeves are in insertion fit with the upper insertion posts, and the bottom insertion posts are in insertion fit with the upper insertion sleeves;

[0010] A positioning notch disposed at one end in the length direction of the upper shell and the lower shell, and the positioning notch is far from the sample addition hole.

[0011] Optionally, the fixing component includes:

[0012] End positioning members and end limiting plates provided at both ends in the length direction of the inner cavity of the lower shell;

[0013] The end positioning member has a horizontal U-shaped structure, and the inner cavity of the end positioning member is adapted to the end of the sample addition area of the test strip; the distance dimension between the end positioning member and the end limiting plate is adapted to the length dimension of the test strip;

[0014] The first end support bars corresponding to the end positioning member, the first end support bars are in contact with the bottom surface of the test strip, there are two first end support bars, and the two first end support bars are respectively close to the sides in the width direction of the test strip;

[0015] The second end support bars corresponding to the end limiting plate, the second end support bars are in contact with the bottom surface of the test strip, there are two second end support bars, and the two second end support bars are respectively close to the sides in the width direction of the test strip;

[0016] The middle support bar provided on the bottom surface of the inner cavity of the lower shell, the middle support bar corresponds to the observation window, and the middle support bar is in contact with the bottom surface of the test strip.

[0017] Optionally, the fixing assembly further includes:

[0018] Reinforcing support platforms provided on the bottom surface of the inner cavity of the lower shell, there are two reinforcing support platforms, and the two reinforcing support platforms are distributed on both sides of the middle support bar along the length direction of the lower shell.

[0019] Optionally, the fixing assembly further includes:

[0020] Positioning plates provided on the bottom surface of the inner cavity of the lower shell, there are two positioning plates, and the two positioning plates respectively correspond to the two second end support bars. The facing surfaces of the two positioning plates are both provided with positioning edges having a triangular cross-sectional structure, and the edges of the positioning edges are in contact with the side surfaces in the width direction of the test strip;

[0021] A reinforcing support bar provided between the two positioning plates, and the reinforcing support bar is in contact with the bottom surface of the test strip.

[0022] Optionally, the test card structure further includes:

[0023] A pressing block provided on the top surface of the inner cavity of the upper shell, and the pressing block is located between the sample addition hole and the observation window;

[0024] The bottom surface of the pressing block is formed with a toothed structure, the toothed structure extends along the length direction of the test strip, there are multiple toothed structures, and the multiple toothed structures are evenly distributed along the width direction of the test strip, and the toothed structure is in contact with the surface of the sample addition area of the test strip.

[0025] Optionally, the test card structure further includes:

[0026] Fixing columns arranged on the top surface of the inner cavity of the upper shell, and the fixing columns are in contact with the surface of the water absorption area of the test strip.

[0027] Optionally, the test card structure further includes:

[0028] An avoidance inclined surface formed on the surface of the first end support strip, and the avoidance inclined surface is away from the observation window and the sample addition hole;

[0029] A pressing column formed on the top surface of the inner cavity of the upper shell, the pressing column corresponds to the avoidance inclined surface, and the surface of the sample addition area of the test strip contacts the pressing column and bends towards the avoidance inclined surface.

[0030] Optionally, the test card structure further includes:

[0031] A diversion groove formed on the top surface of the inner cavity of the upper shell, the diversion groove is communicated with the sample addition hole, and the diversion groove extends towards the avoidance inclined surface.

[0032] Optionally, the test card structure further includes:

[0033] Ventilation holes penetrating through the surface of the upper shell, and the ventilation holes are located on the side of the observation window away from the sample addition hole.

[0034] Optionally, the test card structure further includes:

[0035] A recessed cavity formed on the surface of the upper shell, and the sample addition hole is formed on the bottom surface of the recessed cavity.

[0036] The above solution of the present invention at least includes the following beneficial effects:

[0037] In the above solution of the present invention, the upper shell and the lower shell are assembled by the insertion of the upper insertion post and the bottom insertion sleeve and the insertion of the upper insertion sleeve and the bottom insertion post. Through the distribution of the upper insertion post and the upper insertion sleeve, the assembly method of the upper shell and the lower shell is unique. With the cooperation of the positioning notch, incorrect assembly of the upper shell and the lower shell can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural diagram of the test card structure provided by the embodiment of the present invention;

[0039] Figure 2 is a schematic structural diagram of the interior of the lower shell in the test card structure provided by the embodiment of the present invention;

[0040] Figure 3 is a schematic structural diagram of the interior of the upper shell in the test card structure provided by the embodiment of the present invention;

[0041] Figure 4 is the front cross-sectional view of the test card structure provided by the embodiment of the present utility model;

[0042] Figure 5 is the top view of the test strip in the test card structure provided by the embodiment of the present utility model.

[0043] The description of the reference numerals is as follows:

[0044] 1. Upper shell; 2. Lower shell; 3. Positioning notch; 4. Ventilation hole; 5. Observation window; 6. IgM detection line; 7. IgG detection line; 8. Sampling hole; 9. Concave cavity; 10. Bottom socket; 11. Bottom plug; 12. End positioning member; 13. First end support bar; 14. Avoidance inclined plane; 15. Reinforcing support platform; 16. Middle support bar; 17. Positioning plate; 18. Reinforcing support bar; 19. Positioning rib; 20. End limiting plate; 21. Second end support bar; 22. Upper socket; 23. Upper plug; 24. Pressing block; 25. Diversion groove; 26. Pressing column; 27. Fixed column; 28. Test strip; 29. Sampling area; 30. Detection area; 31. Water absorption area. Detailed implementation manners

[0045] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0046] As Figures 1-5 shown, the present utility model provides a test card structure, including:

[0047] A test strip 28 disposed inside the lower shell 2 through a fixing component, and an IgM detection line 6 and an IgG detection line 7 are disposed in the detection area 30 of the test strip 28;

[0048] A sampling hole 8 and an observation window 5 penetrating through the surface of the upper shell 1, the sampling hole 8 corresponds to the sampling area 29 of the test strip 28, and the observation window 5 corresponds to the detection area 30 of the test strip 28;

[0049] An upper plug 23 and an upper socket 22 disposed on the top surface of the inner cavity of the upper shell 1, the upper plug 23 and the upper socket 22 are respectively distributed on both sides of the inner cavity width direction of the upper shell 1, and a plurality of upper plugs 23 and upper sockets 22 are distributed along the length direction of the upper shell 1;

[0050] The bottom plug socket 10 and the bottom plug post 11 are arranged on the bottom surface of the inner cavity of the lower shell 2. The bottom plug socket 10 is in plug-in fit with the upper plug post 23, and the bottom plug post 11 is in plug-in fit with the upper plug socket 22;

[0051] The positioning notch 3 is arranged at one end of the upper shell 1 and the lower shell 2 in the length direction, and the positioning notch 3 is far away from the sample adding hole 8.

[0052] In this embodiment, during assembly, the test strip 28 is fixed inside the lower shell 2 through the fixing component, and positioned through the positioning notches 3 at the ends of the upper shell 1 and the lower shell 2 to realize the direction positioning of the upper shell 1 and the lower shell 2; the upper shell 1 and the lower shell 2 are assembled by the plug-in connection of the upper plug post 23 and the bottom plug socket 10 and the plug-in connection of the upper plug socket 22 and the bottom plug post 11; since the upper plug post 23 and the upper plug socket 22 are respectively distributed on both sides of the inner cavity width direction of the upper shell 1, and a plurality of upper plug posts 23 and upper plug sockets 22 are distributed along the length direction of the upper shell 1, adopting this distribution method can make the assembly method of the upper shell 1 and the lower shell 2 unique, and cooperate with the positioning notch 3 to avoid the wrong assembly of the upper shell 1 and the lower shell 2;

[0053] During the test, the sample and the diluent are added into the sample adding hole 8. The sample and the diluent fall onto the sample adding area 29 of the test strip 28 and are chromatographically transferred to the detection area 30 of the test strip 28. The detection area 30 of the test strip 28 is provided with an IgM detection line 6 and an IgG detection line 7, which can simultaneously detect the IgM item and the IgG item, and realize the detection of two items at the same time, which helps to avoid waste.

[0054] Such as Figure 2 shown, in an optional embodiment of the present utility model, the fixing component includes:

[0055] The end positioning members 12 and the end limiting plates 20 are arranged at both ends of the inner cavity of the lower shell 2 in the length direction;

[0056] The end positioning member 12 has a horizontal U-shaped structure, and the inner cavity of the end positioning member 12 is adapted to the end of the sample adding area 29 of the test strip 28; the distance dimension between the end positioning member 12 and the end limiting plate 20 is adapted to the length dimension of the test strip 28;

[0057] The first end support bars 13 corresponding to the end positioning member 12, the first end support bars 13 are in contact with the bottom surface of the test strip 28, and there are two first end support bars 13, and the two first end support bars 13 are respectively close to the sides of the test strip 28 in the width direction;

[0058] The second end support bars 21 corresponding to the end limiting plate 20, the second end support bars 21 are in contact with the bottom surface of the test strip 28, and there are two second end support bars 21, and the two second end support bars 21 are respectively close to the sides of the test strip 28 in the width direction;

[0059] The middle support bar 16 is arranged at the middle of the inner cavity bottom surface of the lower shell 2. The middle support bar 16 corresponds to the observation window 5, and the bottom surface of the middle support bar 16 abuts against the bottom surface of the test strip 28.

[0060] In this embodiment, when fixing the test strip 28, the test strip 28 is respectively placed on the first end support bar 13, the second end support bar 21 and the middle support bar 16. At this time, the end of the sample addition area 29 of the test strip 28 is clamped and fixed inside the end positioning member 12. The width direction of the test strip 28 is limited by the end positioning member 12, and the length direction of the test strip 28 is limited by the end limiting plate 20 and the end positioning member 12, so as to fix the test strip 28 inside the lower shell 2.

[0061] As Figure 2 shown, in an alternative embodiment of the present utility model, the fixing assembly further includes:

[0062] The strengthening support platforms 15 are arranged at the inner cavity bottom surface of the lower shell 2. There are two strengthening support platforms 15, and the two strengthening support platforms 15 are distributed on both sides of the middle support bar 16 along the length direction of the lower shell 2.

[0063] In this embodiment, the test strip 28 is supported by the two strengthening support platforms 15 to ensure the stability of the test strip 28 inside the lower shell 2.

[0064] As Figure 2 shown, in an alternative embodiment of the present utility model, the fixing assembly further includes:

[0065] The positioning plates 17 are arranged at the inner cavity bottom surface of the lower shell 2. There are two positioning plates 17, and the two positioning plates 17 respectively correspond to the two second end support bars 21. The facing surfaces of the two positioning plates 17 are both provided with positioning edges 19 with a triangular cross-section structure, and the edges of the positioning edges 19 abut against the side surfaces of the test strip 28 in the width direction;

[0066] The strengthening support bar 18 is arranged between the two positioning plates 17, and the strengthening support bar 18 abuts against the bottom surface of the test strip 28.

[0067] In this embodiment, the test strip 28 is limited by the positioning plates 17 and the positioning edges 19, and the test strip 28 is supported by the strengthening support bar 18 to further improve the stability of the test strip 28.

[0068] As Figure 3 and Figure 4 shown, in an alternative embodiment of the present utility model, the test card structure further includes:

[0069] The pressing block 24 is arranged at the inner cavity top surface of the upper shell 1. The pressing block 24 is located between the sample addition hole 8 and the observation window 5;

[0070] The bottom surface of the pressing block 24 is formed with a toothed structure that extends along the length direction of the test strip 28. There are multiple toothed structures, and the multiple toothed structures are evenly distributed along the width direction of the test strip 28. The toothed structure abuts against the surface of the sample application area 29 of the test strip 28.

[0071] In this embodiment, by pressing the test strip 28 with the pressing block 24 and the toothed structure on the bottom surface of the pressing block 24, the chromatographic transfer speed of the sample and the diluent on the test strip 28 can be controlled, which plays a role in controlling the speed and ensures that the sample and the diluent can fully contact and react with the IgM test line 6 and the IgG test line 7 in the detection area 30, thus ensuring the detection accuracy.

[0072] As Figure 3 and Figure 4 shown, in an alternative embodiment of the present utility model, the test card structure further includes:

[0073] The fixing column 27 provided on the inner cavity top surface of the upper shell 1, and the fixing column 27 abuts against the surface of the water absorption area 31 of the test strip 28.

[0074] In this embodiment, the test strip 28 is positioned by the fixing column 27, further ensuring the stability of the test strip 28.

[0075] As Figures 2 to 4 shown, in an alternative embodiment of the present utility model, the test card structure further includes:

[0076] The avoiding inclined surface 14 formed on the surface of the first end support strip 13, and the avoiding inclined surface 14 is far away from the observation window 5 and the sample application hole 8;

[0077] The pressing column 26 formed on the inner cavity top surface of the upper shell 1, the pressing column 26 corresponds to the avoiding inclined surface 14, and the surface of the sample application area 29 of the test strip 28 contacts the pressing column 26 and bends towards the avoiding inclined surface 14.

[0078] In this embodiment, the sample application area 29 of the test strip 28 is formed into a slope structure by the pressing column 26 and the avoiding inclined surface 14, which helps to delay the chromatographic transfer speed of the sample and the diluent to the detection area 30, plays a role in controlling the speed, and ensures that the sample and the diluent can fully contact and react with the IgM test line 6 and the IgG test line 7 in the detection area 30, thus ensuring the detection accuracy.

[0079] As Figure 3 and Figure 4 shown, in an alternative embodiment of the present utility model, the test card structure further includes:

[0080] The diversion groove 25 formed on the inner cavity top surface of the upper shell 1, the diversion groove 25 is communicated with the sample application hole 8, and the diversion groove 25 extends towards the avoiding inclined surface 14.

[0081] In this embodiment, when a relatively large amount of sample and diluent are added, the sample and diluent are diverted through the diversion groove 25 so that the sample and diluent flow to a part of the sample application area 29 away from the detection area 30, ensuring that the sample and diluent can be slowly chromatographically transferred to the detection area 30, and ensuring that the sample and diluent can fully contact and react with the IgM detection line 6 and IgG detection line 7 in the detection area 30, thus ensuring the detection accuracy.

[0082] As Figure 3 and Figure 4 shown, in an alternative embodiment of the present utility model, the test card structure further includes:

[0083] The air vent holes 4 penetrating through the surface of the upper shell 1, and the air vent holes 4 are located on the side of the observation window 5 away from the sample application hole 8.

[0084] In this embodiment, when adding the sample and diluent, air flow surges will occur during the chromatographic transfer of the sample and diluent, which affects the chromatographic transfer of the sample and diluent. By providing the air vent holes 4, it can play an exhaust role, thereby avoiding the influence of air flow surges on the chromatographic transfer of the sample and diluent, and ensuring that the sample and diluent can be accurately chromatographically transferred to the detection area 30.

[0085] As Figure 1 shown, in an alternative embodiment of the present utility model, the test card structure further includes:

[0086] The recessed cavity 9 formed on the surface of the upper shell 1, and the sample application hole 8 is formed on the inner bottom surface of the recessed cavity 9.

[0087] In this embodiment, by arranging the sample application hole 8 on the inner bottom surface of the recessed cavity 9, it can avoid the contamination of the sample application hole 8 and ensure the detection accuracy.

[0088] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle described in the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A test card structure, characterized in that: include: A test paper (28) is arranged inside the lower shell (2) by a fixing component, wherein the detection area (30) of the test paper (28) is provided with an IgM detection line (6) and an IgG detection line (7); A sample addition hole (8) and an observation window (5) are provided through the surface of the upper shell (1), wherein the sample addition hole (8) corresponds to the sample addition area (29) of the test paper (28), and the observation window (5) corresponds to the detection area (30) of the test paper (28); An upper plug post (23) and an upper plug sleeve (22) are arranged on the top surface of the inner cavity of the upper shell (1), the upper plug post (23) and the upper plug sleeve (22) are respectively distributed on both sides of the inner cavity width direction of the upper shell (1), and a plurality of upper plug posts (23) and upper plug sleeves (22) are distributed along the length direction of the upper shell (1); A bottom plug sleeve (10) and a bottom plug post (11) are arranged on the bottom surface of the inner cavity of the lower shell (2), the bottom plug sleeve (10) is plugged into and matched with the upper plug post (23), and the bottom plug post (11) is plugged into and matched with the upper plug sleeve (22); A positioning notch (3) is provided at one end of the upper shell (1) and the lower shell (2) in the length direction, and the positioning notch (3) is away from the sample addition hole (8).

2. The test card structure according to claim 1, characterized in that: The fixing assembly comprises: End positioning members (12) and end limiting plates (20) are arranged at both ends of the inner cavity of the lower shell (2) in the length direction; The end positioning member (12) is in a horizontal U-shaped structure, and the inner cavity of the end positioning member (12) is adapted to the end of the sample adding area (29) of the test paper (28); the distance between the end positioning member (12) and the end limiting plate (20) is adapted to the length of the test paper (28); a first end support strip (13) corresponding to the end positioning member (12), the first end support strip (13) being in contact with the bottom surface of the test paper (28), two first end support strips (13) being provided, and the two first end support strips (13) being respectively close to the side edges of the test paper (28) in the width direction; a second end support bar (21) corresponding to the end stop plate (20), the second end support bar (21) abutting against the bottom surface of the test paper (28), two second end support bars (21) being provided, and the two second end support bars (21) are respectively close to the side edges of the test paper (28) in the width direction; A middle support strip (16) is arranged on the bottom surface of the inner cavity of the lower shell (2), the middle support strip (16) corresponds to the observation window (5), and the middle support strip (16) abuts against the bottom surface of the test paper (28).

3. The test card structure according to claim 2, characterized in that: The fixing assembly also includes: A reinforcing support platform (15) is arranged on the bottom surface of the inner cavity of the lower shell (2), wherein two reinforcing support platforms (15) are arranged, and the two reinforcing support platforms (15) are distributed on both sides of the middle support strip (16) along the length direction of the lower shell (2).

4. The test card structure according to claim 2, characterized in that: The fixing assembly also includes: A positioning plate (17) is arranged on the bottom surface of the inner cavity of the lower shell (2), wherein two positioning plates (17) are arranged, and the two positioning plates (17) correspond to the two second end support strips (21) respectively, and the facing surfaces of the two positioning plates (17) are both provided with positioning edges (19) with a triangular cross-section structure, and the edges of the positioning edges (19) abut against the side surface of the test paper (28) in the width direction; A reinforcing support strip (18) is arranged between the two positioning plates (17), and the reinforcing support strip (18) abuts against the bottom surface of the test paper (28).

5. The test card structure according to claim 2, characterized in that: Also includes: A pressing block (24) arranged on the top surface of the inner cavity of the upper shell (1), wherein the pressing block (24) is located between the sample addition hole (8) and the observation window (5); The bottom surface of the pressing block (24) is formed with a tooth-shaped structure, the tooth-shaped structure extends along the length direction of the test paper (28), a plurality of the tooth-shaped structures are provided, and the plurality of tooth-shaped structures are evenly distributed along the width direction of the test paper (28), and the tooth-shaped structure abuts against the surface of the sample addition area (29) of the test paper (28).

6. The test card structure according to claim 2, characterized in that: Also includes: A fixing column (27) is arranged on the top surface of the inner cavity of the upper shell (1), and the fixing column (27) abuts against the surface of the water absorption area (31) of the test paper (28).

7. The test card structure according to claim 2, characterized in that: Also includes: An avoidance slope (14) formed on the surface of the first end support strip (13), the avoidance slope (14) being away from the observation window (5) and the sample addition hole (8); A pressure column (26) is formed on the top surface of the inner cavity of the upper shell (1), the pressure column (26) corresponds to the avoidance slope (14), and the surface of the sample addition area (29) of the test paper (28) contacts the pressure column (26) and is bent toward the avoidance slope (14).

8. The test card structure according to claim 7, characterized in that: Also includes: A flow guide groove (25) is formed on the top surface of the inner cavity of the upper shell (1), the flow guide groove (25) is connected to the sample addition hole (8), and the flow guide groove (25) extends toward the avoidance slope (14).

9. The test card structure according to claim 1, characterized in that: Also includes: A ventilation hole (4) is provided through the surface of the upper shell (1), and the ventilation hole (4) is located on a side of the observation window (5) away from the sample addition hole (8).

10. The test card structure according to claim 1, characterized in that: Also includes: A recessed cavity (9) is formed on the surface of the upper shell (1), and the sample addition hole (8) is formed on the inner bottom surface of the recessed cavity (9).

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