Multiplex test cassette with single-well sample loading

Abstract

A multiplex test cassette with single-well sample loading, comprising a cassette body (1), wherein at least two test strips (2) are provided in the cassette body (1); a liquid guide groove (3) is provided on the cassette body (1); a plurality of liquid seepage wells (31) in communication with an inner cavity of the cassette body (1) are provided at the bottom of the liquid guide groove (3), and the liquid seepage wells (31) are located above sample loading pads of the test strips (2) and guide a sample solution to flow onto the sample loading pads; and a cover plate (32) is provided on the upper part of the liquid guide groove (3). The multiplex test cassette further comprises a sample dropping well (4) in communication with the liquid guide groove (3), wherein by means of dropping a sample into the sample dropping well (4), the sample solution flows into the liquid guide groove (3) and passes through the liquid seepage wells (31) to flow into the different sample loading pads, and the sample dropping well (4) is located at the end of the liquid guide groove (3). By means of a single instance of sample dropping, multiple test purposes are achieved, and an efficient and stable test effect is also ensured. The structure is simple and rational, and the practicability is high.

Description

Single-well sample dispensing multi-unit detection kit Technical Field

[0001] This utility model relates to the field of medical testing technology, and in particular to a single-well sample dispensing multi-unit testing kit. Background Technology

[0002] With the development of in vitro diagnostic technology, most current diagnostic testing methods adopt the form of test strips. Conventional test strips can generally only hold one test strip and can only be used to detect one item. However, the differential diagnosis of similar diseases often requires the simultaneous detection of two or more items, such as influenza A / B virus, novel coronavirus, respiratory syncytial virus, adenovirus, and mycoplasma pneumoniae antigen in respiratory tract tests.

[0003] However, most existing multi-sample test kits use test strips distributed around the dropper well for testing. In practical applications, this structure is prone to problems where some test strips fail to complete sampling due to differences in the liquid absorption capacity of each strip, which greatly reduces the success rate of the test.

[0004] Therefore, it is necessary to design a multi-part test paper box with a more reasonable structure. Technical issues

[0005] This invention addresses the shortcomings of existing technologies by providing a single-well sample loading multi-unit detection box. Technical solutions

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] A single-well multi-unit test kit includes a box body containing at least two test strips. The box body has a liquid guiding groove with multiple leakage holes at the bottom communicating with the inner cavity of the box. These leakage holes are located above the sample pads of the test strips and guide the sample liquid to flow onto the sample pads. A cover plate is provided at the top of the liquid guiding groove. The kit also includes a dropper hole communicating with the liquid guiding groove. By dropping a sample into the dropper hole, the sample liquid flows into the liquid guiding groove and through the leakage holes to flow onto different sample pads. The dropper hole is located at the end of the liquid guiding groove.

[0008] Preferably, the seepage holes are regular hexagonal holes, and multiple seepage holes are evenly arranged in a honeycomb pattern.

[0009] Preferably, the diameter of the seepage hole is 1.0 mm to 3.0 mm.

[0010] Preferably, the distance between the bottom of the liquid guiding tank and the cover plate is 1.0mm~3.0mm. By controlling the small distance, the capillary flow of the sample liquid is achieved, so that the sample liquid can move laterally and come into uniform contact with different test paper pads.

[0011] Preferably, multiple test strips are arranged vertically in parallel inside the box, the liquid guide groove is set horizontally at the bottom of the box, and the drop hole is located at the right end of the liquid guide groove.

[0012] Preferably, the right end of the cover plate is provided with a first arc notch, and the right end of the liquid guiding groove is provided with a second arc notch. The first arc notch and the second arc notch are arranged opposite to each other to form a drop hole.

[0013] Preferably, the box has a detection cavity, and the detection cavity has a slot. The test strip is fitted into the slot and installed in the slot; there are three slots and three test strips.

[0014] Preferably, the box body includes an upper box body and a lower box body, which are interlocked with each other.

[0015] Preferably, the liquid guide groove is located on the upper box body, and the lower part of the lower box body is provided with a liquid storage baffle, which is a ring structure and located below the liquid guide groove.

[0016] Preferably, the upper box is also provided with an observation window, which is located above the detection section of the test strip. Beneficial effects

[0017] This utility model has significant technical effects due to the adoption of the above technical solutions: this application can achieve multiple inspection purposes with a single sample drop while ensuring high efficiency and stability of the detection effect, with a simple and reasonable structure and strong practicality. Attached Figure Description

[0018] Figure 1 is a structural schematic diagram of this utility model.

[0019] Figure 2 is a partial enlarged view of this utility model.

[0020] Figure 3 is a schematic diagram of the lower shell of this utility model.

[0021] The parts referred to by the numbers in the attached diagram are as follows: 1—box body, 2—test paper, 3—liquid guide groove, 4—dropping hole, 31—leakage hole, 32—cover plate, 10—slot, 11—upper box body, 111—observation window, 12—lower box body, 121—liquid storage strip. Embodiments of the present invention

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0023] Example 1: A single-well multi-unit test kit, as shown in the figure, includes a box body 1, which contains at least two test strips 2. The box body 1 is provided with a liquid guiding groove 3. The bottom of the liquid guiding groove 3 is provided with multiple leakage holes 31 that communicate with the inner cavity of the box body 1. The leakage holes 31 are located above the sample pads of the test strips 2 and guide the sample liquid to flow onto the sample pads. The upper part of the liquid guiding groove 3 is provided with a cover plate 32 and a step. The cover plate 32 is fastened to the step. It also includes a drop hole 4 that communicates with the liquid guiding groove 3. By dropping a sample into the drop hole 4, the sample liquid flows into the liquid guiding groove 3 and through the leakage holes 32 into different sample pads. The drop hole 4 is located at the end of the liquid guiding groove 3.

[0024] The liquid guiding groove 3 facilitates the uniform flow of sample liquid onto different test strips 2, enabling multiple tests to be performed with a single drop. The design of the liquid guiding groove 3 and the cover plate 32 utilizes capillary action to guide the flow of sample liquid. The design of the seepage hole 31 better controls the flow rate of sample liquid, ensuring uniform sampling across all test strips 2.

[0025] Example 2: Same as Example 1, except that the seepage holes 31 are regular hexagonal holes, and multiple seepage holes 31 are evenly arranged in a honeycomb pattern.

[0026] The diameter of the seepage hole 31 is 2.0 mm.

[0027] Example 3: Similar to Example 1, except that the distance between the bottom of the liquid guiding groove 3 and the cover plate 32 is 2.0 mm. By controlling the small distance, the capillary flow of the sample liquid is achieved, so that the sample liquid can move laterally and contact the sample pads of different test papers 2 evenly.

[0028] Example 4: Same as Example 1, except that multiple test strips 2 are arranged vertically in parallel inside the box 1, the liquid guide groove 3 is arranged horizontally at the bottom of the box 1, and the drop hole 4 is located at the right end of the liquid guide groove 3.

[0029] The right end of the cover plate 32 has a first arc-shaped notch, and the right end of the liquid guiding groove 3 has a second arc-shaped notch. The first and second arc-shaped notches are arranged opposite each other to form a dropper hole 4. Users can drop a specified amount of sample liquid through the dropper hole 4 to perform multiple tests simultaneously without the need for repeated dropping, making it more convenient to use.

[0030] Example 5: Same as Example 1, except that the box body 1 is provided with a detection cavity, and the detection cavity is provided with a slot 10. The test strip 2 is fitted with the slot 10 and installed in the slot 10; there are three slots 10 and three test strips 2.

[0031] Example 6: Same as Example 1, except that the box 1 includes an upper box 11 and a lower box 12, which are interlocked.

[0032] The liquid guide groove 3 is located on the upper box 11, and the lower part of the lower box 12 is provided with a liquid storage baffle 121. The sample pad of the test strip 2 is inserted into the storage pool formed by the liquid storage baffle 121. The liquid storage baffle 121 has a ring structure and is located below the liquid guide groove 3. By setting the liquid storage baffle 121, excess sample liquid can be stored in the storage pool, which not only serves as a buffer for the sample liquid, but also prevents contamination of other parts of the test strip 2.

[0033] The upper housing 11 is also provided with an observation window 111, which is located above the detection section of the test strip 2. The user can observe the result of the test strip 2 through the observation window 111.

[0034] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A single-well sample dispensing multi-unit detection box, comprising a box body (1), characterized in that: The box (1) contains at least two test strips (2), and the box (1) is provided with a liquid guiding groove (3). The bottom of the liquid guiding groove (3) is provided with multiple leakage holes (31). The leakage holes (31) are located above the sample pad of the test strip (2). The upper part of the liquid guiding groove (3) is provided with a cover plate (32). It also includes a sample dropping hole (4) that communicates with the liquid guiding groove (3). The sample dropping hole (4) is located at the end of the liquid guiding groove (3).

2. The single-well sample dispensing multi-unit detection box according to claim 1, characterized in that: The seepage holes (31) are regular hexagonal holes, and multiple seepage holes (31) are evenly arranged in a honeycomb pattern.

3. The single-well sample loading multi-unit detection box according to claim 1 or 2, characterized in that: The diameter of the seepage hole (31) is 1.0 mm to 3.0 mm.

4. The single-well sample loading multi-unit detection box according to claim 1, characterized in that: The distance between the bottom of the liquid guiding tank (3) and the cover plate (32) is 1.0mm~3.0mm.

5. The single-well sample loading multi-unit detection box according to claim 1, characterized in that: Multiple test strips (2) are arranged vertically in parallel inside the box (1), the liquid guide groove (3) is set horizontally at the bottom of the box (1), and the drop hole (4) is located at the right end of the liquid guide groove (3).

6. The single-well sample dispensing multi-unit detection box according to claim 1 or 5, characterized in that: The right end of the cover plate (32) is provided with a first arc notch, and the right end of the liquid guide groove (3) is provided with a second arc notch. The first arc notch and the second arc notch are arranged opposite to each other to form a drop sample hole (4).

7. The single-well sample loading multi-unit detection box according to claim 1, characterized in that: The box (1) has a card slot (10) inside, and the test strip (2) is fitted with the card slot (10) and installed in the card slot (10); there are three card slots (10) and three test strips (2).

8. The single-well sample loading multi-unit detection box according to claim 1, characterized in that: The box (1) includes an upper box (11) and a lower box (12), which are interlocked.

9. The single-well sample loading multi-unit detection box according to claim 8, characterized in that: The liquid guide groove (3) is located on the upper box (11), and the lower part of the lower box (12) is provided with a liquid storage baffle (121). The liquid storage baffle (121) is a ring structure and is located below the liquid guide groove (3).

10. The single-well sample loading multi-unit detection box according to claim 8, characterized in that: The upper box (11) is also provided with an observation window (111), which is located above the detection section of the test strip (2).

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