Multiplex detection kit

Abstract

A multiplex detection kit. The multiplex detection kit comprises an upper shell (1) and a lower shell (4); the lower shell (4) is detachably connected to the upper shell (1); the inner surface of the lower shell (4) is provided with a liquid storage device (5), supporting elements (18), and a first blocking mechanism (8), wherein the supporting elements (18) respectively carry test strips (14) extending out of the liquid storage device (5), and the first blocking mechanism (8) blocks excessive liquid in the lower shell (4) from flowing to absorbent papers (17) of the test strips (14). This structural design can block the liquid in the lower shell (4) from spreading to the ends of the test strips (14) when excessive liquid is added, thereby preventing excessive liquid from flowing to the absorbent papers (17) of the test strips (14) and affecting detection.

Description

A multi-test kit

[0001] This application claims priority to the following Chinese patent applications: Chinese Patent Application No. 2025101204733, filed on January 25, 2025, entitled "A Multi-Synthesis Detection Kit", and Chinese Patent Application No. 2025201733709, filed on January 25, 2025, entitled "A Multi-Synthesis Detection Kit", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This instruction manual pertains to the field of medical testing, and more specifically, relates to a multi-test kit. Background Technology

[0003] In the field of medical testing, diagnostic kits are widely used for detecting, screening, and monitoring disease-related indicators, pathogens, or specific biomarkers in biological samples due to their ease of operation and rapid testing speed. Depending on the specific testing requirements, kits can be based on various detection principles to identify target substances.

[0004] Patent publication number CN214668603U discloses a multi-unit drug test kit. This test kit includes a first detector and a second detector, both of which have a display unit, a dripping part, and a test card. The test kit also includes a socket; the first detector has a pin on its side; the second detector has a groove on its side to accommodate the pin; and both the first and second detectors have plugs at their ends. The socket has holes for the plugs. This multi-unit test kit reduces waste after opening the package. Furthermore, the dripping part is equipped with a switch that can seal the dripping part, extending the usability after opening the outer packaging.

[0005] Patent publication number CN219695137U discloses a rapid multiplex test kit. This kit includes an upper box, a lower box, and multiple test strips mounted on the lower box. The upper and lower boxes are interlocked. The upper box has a sample dispensing port and multiple observation ports on its surface, with the observation ports aligned with the display areas on the corresponding test strips. A connecting member is located inside the upper box, below the sample dispensing port, and connects to the detection areas of the multiple test strips. With this test kit, liquid only needs to be added to one sample dispensing port, and then evenly distributed to the detection areas of each test strip through the connecting member. Summary of the Invention

[0006] This instruction manual aims to provide a multi-detection kit.

[0007] Firstly, this specification provides a multi-test kit. The multi-test kit includes an upper shell and a lower shell. The lower shell is detachably connected to the upper shell. A liquid storage device, a support element, and a first blocking mechanism are provided on the inner surface of the lower shell. The support element carries a test strip extending from the liquid storage device, and the first blocking mechanism prevents excessive liquid in the lower shell from flowing to the absorbent paper of the test strip.

[0008] In one embodiment of this specification, the first blocking mechanism may be disposed at the absorbent paper of the test strip.

[0009] In one embodiment of this specification, the first blocking mechanism is configured as a serpentine, triangular, wavy, or straight liquid-blocking rib.

[0010] In one embodiment of this specification, the two ends of the first blocking mechanism are spaced apart from the sidewall of the lower housing.

[0011] In one embodiment of this specification, both ends of the first blocking mechanism extend to the sidewalls connected to the lower housing.

[0012] In one embodiment of this specification, the support element includes two first support ribs that extend from the liquid storage device and are arranged in parallel and spaced apart. Each first support rib extends with a ramp at its starting end to be parallel to and fixed to the inner surface of the lower housing.

[0013] In one embodiment of this specification, the beginning of the test strip is attached to the slope, thereby reducing the height of the beginning of the test strip; and / or the slope, the first support rib, and the front section of the liquid storage device enclose the liquid distribution area.

[0014] In one embodiment of this specification, a second blocking mechanism is further provided on the inner surface of the lower housing. The second blocking mechanism is located in the liquid storage device and positioned between the two first support ribs. The top surface of the second blocking mechanism is flush with the top surface of the test strip carried by the two first support ribs.

[0015] In one embodiment of this specification, the liquid storage device is provided with a second blocking mechanism inside, and the supporting element, the liquid storage device and the second blocking mechanism form a liquid separation zone.

[0016] In one embodiment of this specification, the liquid storage device is further provided with a third blocking mechanism, and the second blocking mechanism and the third blocking mechanism are distributed in a stepped manner along the liquid flow direction.

[0017] In one embodiment of this specification, a third blocking mechanism is further provided on the inner surface of the lower housing. The third blocking mechanism is positioned between the two first support ribs and is located behind the second blocking mechanism. The third blocking mechanism and the end of the liquid storage device are on the same horizontal line, and the top surface of the third blocking mechanism is flush with the top surface of the liquid storage device.

[0018] In one embodiment of this specification, the liquid storage device has fully open openings at both ends along the length of the lower housing.

[0019] In one embodiment of this specification, the liquid storage device has openings at both ends along the length of the lower housing, and both sides of the openings are connected to the sidewalls of the lower housing.

[0020] In one embodiment of this specification, the support element further includes a second support rib and a third support rib, wherein the first support rib, the second support rib, and the third support rib correspond to each other and bear the corresponding test strip.

[0021] In one embodiment of this specification, the upper housing is provided with a sample dispensing port and an observation window.

[0022] In one embodiment of this specification, the sample dispensing port adopts a funnel-shaped structure.

[0023] In one embodiment of this specification, when the upper housing is connected to the lower housing, the bottom end of the sample dispensing port abuts against the test strip, and the narrowest diameter of the sample dispensing port is not greater than the distance between the inner sides of the two test strips.

[0024] In one embodiment of this specification, the upper housing is provided with at least two observation windows.

[0025] In one embodiment of this specification, the lower housing and the upper housing are fixedly connected by a snap-fit ​​mechanism.

[0026] Compared with existing technologies, the technical solution provided in this manual has the following advantages: it can prevent the liquid inside the lower housing from spreading to the end of the test strip when the amount of liquid added is too large, thus preventing excessive liquid from flowing onto the absorbent paper of the test strip and affecting the detection.

[0027] Secondly, this specification provides a multi-test kit. The multi-test kit includes an upper shell and a lower shell. The lower shell is detachably connected to the upper shell, and the lower shell contains a support element for carrying test strips; the lower shell also contains a liquid storage device, which has a second blocking mechanism inside; the support element, the liquid storage device, and the second blocking mechanism form a liquid separation zone.

[0028] In one embodiment of this specification, the liquid storage device is further provided with a third blocking mechanism, and the second blocking mechanism and the third blocking mechanism are distributed in a stepped manner along the liquid flow direction.

[0029] In one embodiment of this specification, the third blocking mechanism is at the same horizontal line as the end of the liquid storage device, and the third blocking mechanism is flush with the top surface of the liquid storage device.

[0030] In one embodiment of this specification, the top surface of the second blocking mechanism is flush with the top surface of the assembled test strip.

[0031] In one embodiment of this specification, the support element includes a first support rib, a second support rib, and a third support rib, wherein the first support rib extends from within the liquid storage device along the direction of liquid flow.

[0032] In one embodiment of this specification, the starting end of the first support rib is a slope extending from the inner surface of the lower shell, and the starting end of the test strip is in contact with the slope, thereby reducing the height of the starting end of the test strip.

[0033] In one embodiment of this specification, the ramp, the first support rib, and the front section of the liquid storage device enclose the liquid distribution area.

[0034] In one embodiment of this specification, the liquid storage device has openings on both sides.

[0035] In one embodiment of this specification, the test strip includes a sample pad, a test area, and absorbent paper, and a first blocking mechanism is provided in the lower housing area below the test area.

[0036] In one embodiment of this specification, the upper housing includes sample dispensing ports and observation windows arranged in sequence, the number of observation windows being the same as the number of test strips, and the orthographic projection of the observation windows being located within the test area.

[0037] In one embodiment of this specification, the sample dispensing port is funnel-shaped with a larger top and a smaller bottom, and the orthographic projection of the sample dispensing port is located inside the liquid storage device and between the test strips.

[0038] In one embodiment of this specification, when the upper housing is connected to the lower housing, the bottom end of the sample dispensing port abuts against the test strip, fixing the test strip onto the support element.

[0039] Compared with the prior art, the technical solution provided in this specification has the following advantages: This specification provides a test kit that can perform single-item and / or multi-item joint detection with a single sample dispensing port and without the need for a dispensing cotton to overlap the test strip. Furthermore, this utility model can ensure that the test results of the test strip will not be affected when the amount of liquid added is too small, and it can also ensure that the test results of the test strip will not be affected when the amount of liquid added is too large. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0041] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0042] Figure 1 shows an exploded view of the overall structure of a multi-detection kit provided in one embodiment of this specification;

[0043] Figure 2 shows a schematic diagram of the relative positions of the upper shell and the test strips after the multi-test kit in Figure 1 is installed;

[0044] Figure 3 shows a partial structural cross-sectional view of the multi-test kit in Figure 1;

[0045] Figure 4 shows a cross-sectional view of the 3° angled ramp structure used in the multi-test kit of Figure 1;

[0046] Figure 5 shows a cross-sectional view of the 15° angled ramp structure used in the multi-test kit of Figure 1;

[0047] Figure 6 shows a schematic diagram of the liquid flow in the lower shell of the multi-test kit in Figure 1 when the liquid level is low;

[0048] Figure 7 shows a schematic diagram of the liquid flow in the lower shell of the multi-unit test kit in Figure 1 when there is too much liquid.

[0049] Figure 8 shows a schematic diagram of the liquid flow in the lower shell of the multi-test kit in Figure 1 when there is too much liquid.

[0050] Figure 9 shows an alternative embodiment of the opening structure in Figure 1 and a schematic diagram of the liquid flow in the lower shell when there is more liquid.

[0051] Figure 10 shows another alternative embodiment of the opening structure in Figure 1 and a schematic diagram of the liquid flow in the lower housing when there is more liquid.

[0052] Figure 11 shows another alternative embodiment of the opening structure in Figure 1 and a schematic diagram of the liquid flow in the lower shell when there is more liquid.

[0053] Figure 12 shows a schematic diagram of the completely sealed structure of the liquid storage device in Figure 1;

[0054] Figure 13 shows an alternative structural design of the first blocking mechanism at the absorbent paper end of the test strip in the multi-unit test kit of Figure 1, and a schematic diagram illustrating how, in the event of excessive liquid, the liquid spreads and flows to the first blocking mechanism where it is blocked; and

[0055] Figure 14 shows a schematic diagram of another structural design for the test strip and the third support rib in the multi-test kit of Figure 1.

[0056] The reference numerals in the accompanying drawings are as follows, where the same numerals represent the same components:

[0057] 1. Upper shell; 2. Sample inlet; 3. Observation window; 4. Lower shell; 5. Liquid storage device; 6. First support rib; 7. Slope; 8. First blocking mechanism; 9. Second blocking mechanism; 10. Opening; 11. Second support rib; 12. Third support rib; 13. Third blocking mechanism; 14. Test strip; 15. Sample pad; 16. Test area; 17. Absorbent paper; 18. Support element; D, narrowest opening diameter; d, inner side spacing; W1, test strip width; W2, width of the first support rib. Detailed Implementation

[0058] To better understand the above-described objects, features, and advantages of this disclosure, embodiments of this specification will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0059] Numerous specific details are set forth in the following description in order to provide a full understanding of this specification, but this specification may also be implemented in other ways than those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0060] It should be understood that the terms “comprising” and “including” used in this disclosure and claims indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0061] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0062] It should also be further understood that the term "and / or" as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. In this specification, expressions such as "A, B, and / or C" have the same meaning as "X includes at least one of A, B, or C," indicating that X includes at least A, or at least B, or at least C. That is, X includes only one of A, B, and C, or any combination of A, B, and C, as well as other possible contents / elements. Any combination of A, B, and C is A, B, C, AB, AC, BC, or ABC.

[0063] In this specification, unless explicitly stated otherwise, the relationships between structures are both direct and indirect, both complete and partial. For example, when describing "A is connected to B," unless it is explicitly stated that A and B are directly connected, it should be understood that A is directly connected to B and also indirectly connected to B. Similarly, when describing "A is above B," unless it is explicitly stated that A is directly above B (AB is adjacent and A is above B), it should be understood that A is directly above B and also indirectly above B (AB is separated by other elements, and A is above B). Furthermore, when describing "A is inside B," unless it is explicitly stated that A is entirely inside B, it should be understood that A is entirely inside B and also partially inside B. And so on.

[0064] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0065] Currently available reagent kits often suffer from issues where excessive liquid is added, causing it to spread to the absorbent paper and affect test results, potentially rendering the test undetectable. Therefore, a structural design is urgently needed to prevent this from occurring.

[0066] The patent in the background art with patent publication number CN214668603U does not consider the situation where the dripping liquid spreads to the absorbent paper end of the test strip. The patent in the background art with patent publication number CN219695137U also does not consider the problem of excessive dripping liquid spreading to the absorbent paper end of the test strip and affecting the detection.

[0067] Therefore, this specification provides a multi-test kit with an improved structure. More specifically, this specification provides a kit that prevents liquid from spreading to the absorbent paper end of the test strip when too much liquid is added.

[0068] The specific implementation methods of this specification will now be described in detail with reference to the accompanying drawings.

[0069] Figure 1 shows an exploded view of the overall structure of a multi-unit test kit provided in one embodiment of this specification. As shown in Figure 1, a multi-unit test kit includes an upper housing 1, a lower housing 4 detachably connected to the upper housing 1, and a test strip 14 placed between the two. The lower housing 4 is used to receive the test strip. This multi-unit test kit can distribute as much of the available test liquid as possible to the test strip 14 to complete the test when the available test liquid volume is too small, so as to complete the test; it can also prevent the test strip 14 from overflowing and affecting the test when the liquid volume is large.

[0070] The upper shell 1 is provided with a sample inlet 2 and an observation window 3 in sequence. The sample inlet 2 is a funnel-shaped structure that is larger at the top and smaller at the bottom. This structure can store the dripping test liquid, allowing the test liquid to drip through the bottom opening of the sample inlet 2, preventing the liquid from spreading on the surface of the upper shell 1 due to excessive liquid being dripped into the sample inlet 2 by the user. In this embodiment, as shown in FIG1, the sample inlet 2 is preferably a circular funnel.

[0071] The test strip 14 is divided into a sample pad 15, a test area 16, and absorbent paper 17 in the direction of liquid flow.

[0072] A liquid storage device 5 is provided on the inner surface of the lower housing 4. In this embodiment, the liquid storage device 5 is square and takes the form of a liquid storage tank, and the liquid storage device 5 is located at the front of the lower housing 4.

[0073] The inner surface of the lower housing 4 is also provided with support elements 18 for supporting or carrying the test strip 14. In this embodiment, the support element 18 includes a first support rib 6, a second support rib 11, and a third support rib 12 arranged sequentially along the liquid flow direction. The number of support elements 18 is equal to the number of observation windows 3, and they are located below the observation windows 3. In this embodiment, there are two sets of support elements 18 and two sets of observation windows 3. The starting ends of the two first support ribs 6 are located inside the liquid storage device 5, and their ends extend outward. As shown in Figure 1, the starting end of the first support rib 6 is a ramp 7. In this embodiment, preferably, the starting end of the ramp 7 is connected to the bottom end of the liquid storage device 5, and the sample pad 15 of the test strip 14 is supported on the first support rib 6, and the starting end of the sample pad 15 corresponds to the starting end of the ramp 7. Since the ramp 7 at the front end of the first support rib 6 lowers the height of the sample pad 15 of the test strip 14, the liquid is more likely to contact the sample pad 15 after it is dripped into the liquid storage device 5, so that the test strip 14 can quickly absorb the sample liquid. The second support rib 11 is located in the middle of the lower shell 4, and the third support rib 12 is located in the rear of the lower shell 4. The first support rib 6, the second support rib 11 and the third support rib 12 correspond to each other and bear the corresponding test strip 14.

[0074] When the upper shell 1 and the lower shell 4 are assembled, the sample inlet 2 is located above the liquid storage device 5; from the length direction of the lower shell 4, the bottom end of the sample inlet 2 can firmly abut against the two test strips 14 supported on the two first support ribs 6; and the observation window 3 corresponds to the test area 16 of the test strip 14 to observe the test results of the test strip 14.

[0075] Furthermore, in the embodiment structure shown in Figure 1, a first blocking mechanism 8 is provided in front of the third support rib 12 to prevent liquid from flowing directly to the absorbent paper 17 of the test strip 14. The present invention does not limit the specific location of the first blocking mechanism 8. Optionally, the first blocking mechanism 8 can be located at the beginning of the absorbent paper 17 or in the test area 16. In other words, the first blocking mechanism 8 can be located anywhere that can prevent liquid in the lower housing 4 from reaching the absorbent paper 17 before liquid on the test strip 14. More specifically, when excessive liquid overflows from the liquid storage device 5, the liquid will flow from inside the lower housing 4 to the end of the lower housing 4 (the absorbent paper 17 end of the test strip 14), and the flow speed of the liquid inside the lower housing 4 is faster than the flow speed on the test strip 14. If no blocking mechanism is provided in the direction of liquid flow, the liquid in the lower housing will flow to the vicinity of the absorbent paper 17 end before the test strip 14, and then be absorbed by the absorbent paper 17 within the lower housing 4. This can cause the absorbent paper 17 to absorb too much water, weakening its siphon effect and affecting the liquid flow onto the test strip 14, or even preventing the liquid from flowing onto the test strip 14 altogether. This can lead to inaccurate test results or even prevent the test results from being displayed. In this embodiment, a first blocking mechanism 8 is provided on the inner surface of the lower housing 4. This mechanism can intercept the flowing liquid inside the lower housing 4, preventing the liquid from continuing to flow backward. If the liquid volume is too large, it can also be guided to both sides to prevent the liquid inside the lower housing 4 from approaching the absorbent paper 17 and weakening its siphon effect.

[0076] In this embodiment, the first blocking mechanism 8 is serpentine, with a "U" shape formed in its middle. Besides its functions of blocking and separating liquid, the "U"-shaped recess in the middle of the first blocking mechanism 8 can store some liquid, and the protruding part of the first blocking mechanism 8 can also serve as a support rib, supporting the test strip 14. Specifically, in cases of excessive liquid volume, the "U" shape first blocks the liquid from flowing towards the absorbent paper; if the liquid volume is too high and the "U" shape cannot block it, the liquid will spread to both sides. The portion of the first blocking mechanism 8 perpendicular to the test strip 14 on both sides guides the overflowing liquid to the sides of the lower housing 4, preventing the liquid from flowing to the absorbent paper 17. This design serves both to block liquid and to repel water in cases of excessive liquid volume.

[0077] Alternatively, the first blocking mechanism 8 can also be configured in other shapes, such as triangles, waves, or straight lines.

[0078] In the embodiments described above, the straight-line lengths at both ends of the first blocking mechanism 8 are greater than the distance between the outer sides of the two test strips 14. Of course, in other alternative embodiments, the first blocking mechanism 8 must also meet the above condition.

[0079] In the above embodiments of the present invention, as shown in FIG1, both ends of the first blocking mechanism 8 maintain a distance from the side wall of the lower housing 4, that is, both ends of the first blocking mechanism 8 are a certain distance from the side wall of the lower housing 4. This prevents liquid from crawling out of the lower housing 4 along the ribs due to surface tension and wetting the user's fingers. Of course, in other alternative embodiments, both ends of the first blocking mechanism 8 may also extend to connect to the side wall of the lower housing 4. This can better prevent liquid from continuing to flow backward or to the end of the test strip 14.

[0080] In the above embodiments of the present invention, as shown in FIG1, the angle range of the ramp 7 can be 3°-15°, preferably 3° or 15°. As mentioned above, the starting end of the ramp 7 is connected to the bottom end of the liquid storage device 5. The sample pad 15 of the test strip 14 is supported on the first support rib 6, and the starting end of the sample pad 15 corresponds to the starting end of the ramp 7. Thus, the ramp 7 at the front end of the first support rib 6 lowers the height of the sample pad 15 of the test strip 14, so that the sample pad 15 contacts the inner surface of the lower housing 4. When the liquid is too little (only a shallow layer can be spread), the height of the sample pad 15 is lower, so that the test strip 14 can contact the liquid as much as possible, thereby quickly absorbing the sample liquid and facilitating the subsequent testing of the test strip 14.

[0081] Furthermore, the inventors noted that most existing multi-sample test kits use multiple dispensing ports to dispense samples for each relevant test strip. The drawback of this approach is that each test requires individual dispensing, increasing the number of dispensing attempts and increasing the risk of misremembering the quantity, thus reducing the accuracy of the displayed results. In multi-sample test kits using a single dispensing port, the addition of a dispensing cotton for backflow poses a potential risk of uneven dispensing. Additionally, the dispensing cotton itself absorbs some sample; increasing the total droplet volume could lead to incorrect droplet counting or incorrect test strip results. Maintaining a constant total droplet volume, however, could result in insufficient liquid flow to the test strip after dispensing, making it impossible to read the test results.

[0082] Therefore, in this example, as shown in Figure 1, there is one sample application port 2 and two observation windows 3 arranged in parallel. Furthermore, the two observation windows 3 correspond to the test area 16 of the test strip 14 to observe the test results of the test strip 14.

[0083] Optionally, in order to enable the test kit to perform multiple tests using a single sample dispensing port without the need for a dispensing cotton swab, and to obtain more accurate test results, the multi-test kit provided in this manual, in addition to the first blocking mechanism 8 mentioned above, can also be further equipped with other blocking mechanisms. These will be described in detail below.

[0084] In the above embodiments of the present invention, as shown in FIG1, a second blocking mechanism 9 is provided in the liquid storage device 5, wherein the second blocking mechanism 9 is preferably in the form of a liquid-blocking rib. The second blocking mechanism 9 (liquid-blocking rib) is located between two first support ribs 6, and the top surface of the liquid-blocking rib is flush with the top surface of the test strip 14 supported on the first support ribs 6 after assembly. The second blocking mechanism 9, the first support ribs 6 (e.g., ramp 7), and the front end of the liquid storage device 5 form a liquid distribution zone, which can both block the liquid flow direction and evenly distribute the liquid to the test strip. Specifically, when the liquid is insufficient, the liquid distribution zone can prevent the liquid from spreading in the liquid flow direction and distribute the limited liquid to the test strip 14 for sampling and measurement as much as possible; when the liquid dripping into the liquid distribution zone is excessive, the second blocking mechanism 9 can prevent the liquid from directly overflowing the test strip 14 and affecting the test results. The starting end of the sample pad 15 of the test strip 14 corresponds to the starting end of the slope 7 of the first support rib 6, and the starting end of the slope 7 is connected to the bottom end of the liquid storage device 5. Therefore, the starting end of the sample pad 15 of the test strip 14 is actually located on the inner surface of the lower shell 4, so that even when the liquid volume is small, it can absorb liquid to the maximum extent and complete the test. Of course, in the liquid distribution area formed between the second blocking mechanism 9, the slope 7 and the front end of the liquid storage device 5, when the liquid enters the liquid distribution area, it will spread evenly in all directions from the point of entry, thereby ensuring uniform liquid distribution and that each test strip 14 receives an equal amount of liquid.

[0085] In the embodiments described above, as shown in FIG1, the liquid storage device 5 is further provided with a third blocking mechanism 13, and the second blocking mechanism 9 and the third blocking mechanism 13 are distributed in a stepped manner along the liquid flow direction. Optionally, the third blocking mechanism 13 is provided behind the second blocking mechanism 9. The third blocking mechanism 13 is preferably also in the form of a liquid-blocking rib, and its position is at the same horizontal line as the end of the liquid storage device 5, and the top surface of the third blocking mechanism 13 is flush with the top surface of the liquid storage device 5. The third blocking mechanism 13 can serve as a further blocking structure, and can also play a role in fixing the test strip 14 in cooperation with the side wall of the liquid storage device 5. At the same time, the third blocking mechanism 12 can also prevent the liquid from submerging the test strip when there is too much liquid, thus preventing the situation of being unable to detect or inaccurate detection.

[0086] Furthermore, as shown in Figure 1, the liquid storage device 5 has fully open openings 10 at both ends along the length of the lower housing 4. When too much liquid is added, the liquid will overflow the sample pad 15 and the second blocking mechanism 9 of the test strip 14 and flow in all directions, with some liquid flowing towards the third blocking mechanism 13. Since the height of the third blocking mechanism 13 is higher than that of the second blocking mechanism 9, the third blocking mechanism 13 will prevent the liquid from flowing between the two test strips 14, thus preventing excessive submersion of the test strip 14, or even direct flow into the test area 16 of the test strip 14. This causes excess liquid to flow towards the openings 10, exit from the openings 10, and flow through both sides of the lower housing 4. Therefore, the third blocking mechanism 13 can prevent excessive liquid from spreading in the flow direction and over-submerging the test strip 14, and prevent excessive liquid from directly flowing into the test area 16 of the test strip 14, thus preventing inaccurate test results.

[0087] In the embodiment shown in Figure 1 above, the first blocking mechanism 8 provided at the absorbent paper 17 can prevent liquid from spreading on the inner surface of the lower housing 4, causing the liquid in the lower housing 4 to reach the absorbent paper 17 before the liquid on the test strip 14. This would result in the absorbent paper 17 absorbing too much liquid from the lower housing 4, or even becoming saturated with liquid, causing the liquid on the test strip 14 to fail to climb and affecting the detection. When an excessive amount of sample liquid is added, the excess liquid overflows the sample pad 15 and the second blocking mechanism 9 of the test strip 14 and flows to the surroundings. Some of the liquid flows to the third blocking mechanism 13, which blocks the incoming liquid, causing the excess liquid to drain from the openings 10 at both ends of the liquid storage device 5. When the drainage capacity of the opening 10 is less than the amount of sample liquid added, the liquid will flow along the inner surface of the lower housing 4 to the absorbent paper 17 of the test strip 14. At this time, the first blocking mechanism 8 located at the absorbent paper 17 can prevent the liquid from flowing to the absorbent paper 17 and being absorbed by it, thereby ensuring that the liquid on the test strip 14 can climb normally.

[0088] Figure 2 shows a schematic diagram of the relative positions of the upper shell and test strips after the multi-test kit of Figure 1 is installed. As shown in Figure 2, the sample dispensing port 2 is a circular funnel-shaped structure. The orthographic projection of the smallest part of the circular funnel-shaped structure of the sample dispensing port 2 is located between the orthographic projections of the two test strips 14, that is, the narrowest diameter D of the sample dispensing port is not greater than the distance d between the inner sides of the two test strips, where d is preferably 3-5 mm. In this embodiment, the narrowest diameter D of the sample dispensing port 2 is at least 3 mm to ensure smooth liquid dripping. Alternatively, the sample dispensing port 2 can be of other shapes, but it should be ensured that the maximum distance at the smallest point of the sample dispensing port 2 is not greater than the distance d between the inner sides of the two test strips.

[0089] Figure 3 shows a partial structural cross-sectional view of the multi-test kit in Figure 1. As shown in Figure 3, in the embodiment of Figure 1, the outermost spacing of the first support ribs 6 along the length of the test strip 14 (width W2 of the first support rib) is less than or equal to the width W1 of the test strip, and the height of each first support rib 6 is consistent.

[0090] Figures 4 and 5 show cross-sectional views of the ramp structures with angles of 3° and 15° used in the multi-test kit of Figure 1, respectively. As shown in Figures 4 and 5, the ramp 7 can optionally be tilted at an angle of 3° or 15°.

[0091] Figure 6 shows a schematic diagram of the liquid flow within the lower housing of the multi-unit test kit in Figure 1 when the liquid level is low. As shown in Figure 6, in the embodiment structure shown in Figure 1, the dispensing zone is enclosed between the second blocking mechanism 9, the ramp 7, and the front end of the liquid storage device 5, and the sample inlet 2 is located in the middle of the dispensing zone. This ensures that the falling liquid reaches the two test strips 14 at the same distance, allowing both test strips 14 to simultaneously contact approximately the same amount of liquid. This results in approximately equal amounts of liquid participating in the test on both test strips 14, thus ensuring uniform dispensing on the two test strips 14. When the liquid level in the dispensing zone is low, the second blocking mechanism 9 prevents the liquid from spreading in the direction of liquid flow, maximizing the utilization of the limited liquid. The sample pad 15 of the test strip 14 can absorb the liquid to the maximum extent for testing and measurement.

[0092] Figure 7 illustrates the flow of liquid within the lower housing of the multi-sample test kit in Figure 1 when there is an excess of liquid. As shown in Figure 7, in the embodiment shown in Figure 1, when there is an excess of liquid in the dispensing area (a slightly larger volume of liquid), the liquid overflows the sample pad 15 of the test strip 14 and the second blocking mechanism 9, flowing outwards. Some of the liquid flows towards the third blocking mechanism 13. Since the height of the third blocking mechanism 13 is greater than that of the second blocking mechanism 9, the third blocking mechanism 13 prevents the overflowing liquid from flowing between the two test strips 14, thus preventing excessive submersion of the test strips 14, or even direct flow into the test area 16 of the test strip 14. The excess liquid flows towards the opening 10, diverting out through the opening 10 and flowing through both sides of the lower housing 4, thereby preventing excessive liquid from directly flowing into the test area 16 of the test strip 14 and causing inaccurate test results.

[0093] Figure 8 shows a schematic diagram of the liquid flow within the lower housing of the multi-test kit of Figure 1 when there is excess liquid. As shown in Figure 8, in the embodiment structure shown in Figure 1, when there is excess liquid (more liquid volume) in the dispensing zone, the excess liquid overflows the second blocking mechanism 9 and flows to the third blocking mechanism 13. The third blocking mechanism 13 blocks the overflowing liquid, and the blocked liquid is discharged from the openings 10 at both ends of the liquid storage device 5. When the discharge capacity of the openings 10 is less than the liquid volume in the dispensing zone, the liquid flows along the inner surface of the lower housing 4 to the end of the test strip 14 (at the absorbent paper 17), and the first blocking mechanism 8 located at the end can prevent the liquid from flowing to the end and prevent the liquid from being absorbed by the absorbent paper 17.

[0094] Figures 9-11 illustrate three alternative embodiments of the opening structure in Figure 1 and corresponding schematic diagrams of liquid flow within the lower housing when there is excess liquid. Compared to the embodiment structure in Figure 1, in an alternative embodiment, as shown in Figure 9, the two sides of the openings 10 at both ends of the liquid storage device 5 can be connected to the side walls of the lower housing 4. This structure expands the space of the liquid storage device 5, allowing it to store more liquid. Compared to the embodiment structure in Figure 1, in an alternative embodiment, as shown in Figure 10, the side of the opening 10 furthest from the starting end of the sample pad 15 can be connected to the side wall of the lower housing 4. As shown on the right side of Figure 10, excess liquid can flow out through this opening 10 and continue flowing towards the front of the lower housing 4. Compared to the embodiment structure in Figure 1, in an alternative embodiment, as shown in Figure 11, the two sides of the opening 10 can be appropriately extended outwards to close the space, increasing the liquid storage capacity of the storage area, allowing excess liquid to flow out through the opening 10 into the closed space for storage. This also expands the space of the liquid storage device 5, allowing it to store more liquid. Moreover, the opening of this structure will not flow to the edge of the lower shell 4 when there is too much liquid, thus further preventing the liquid from seeping out along the connection between the lower shell 4 and the upper shell 1 and onto the outside of the entire reagent kit shell when there is too much liquid.

[0095] Figure 12 shows a schematic diagram of the completely closed structure of the liquid storage device in Figure 1. Compared with the embodiment structure in Figure 1, in an optional embodiment, as shown in Figure 12, both ends of the liquid storage device 5 can be closed, without openings 10. This structure is suitable for situations where the liquid level in the distribution zone is low. When the liquid level in the distribution zone is low, the liquid will be directly blocked by the second blocking mechanism 9 from spreading in the flow direction, thus distributing the liquid to the test strip 14 for sampling and measurement.

[0096] Figure 13 illustrates another structural design of the first blocking mechanism 8 at the absorbent paper end of the test strip in the multi-unit test kit of Figure 1, and a schematic diagram of how the liquid spreads and flows to the first blocking mechanism and is blocked when there is too much liquid. As shown in Figure 13, the two sides of the first blocking mechanism 8 are connected to the two side walls of the lower housing 4. When too much liquid flows to the first blocking mechanism 8, the first blocking mechanism 8 will prevent the liquid from continuing to flow to the rear of the lower housing 4 and divert the liquid to the two side walls of the lower housing 4, thereby completely blocking the liquid from flowing to the end of the test strip 14, preventing the end from absorbing too much liquid first and affecting the test. Optionally, the first blocking mechanism 8 can also be a serpentine liquid-blocking rib. Of course, the first blocking mechanism 8 can also be set as other shapes of liquid-blocking ribs, such as triangular, wavy, or straight liquid-blocking ribs.

[0097] Figure 14 shows a schematic diagram of another structural design for the test strips and the third support rib in the multi-test kit of Figure 1. As shown in Figure 14, the structure is similar to that of the lower shell shown in Figure 1, except that the two test strips 14 can be different (e.g., different lengths). Based on the difference between the two test strips 14, the shape of the third support rib 12 at the rear of the lower shell 4 can be changed.

[0098] Other structures not described in Figure 2-14 are the same as the corresponding structures in Figure 1, and will not be repeated here.

[0099] In summary, the multi-analytical reagent kit provided in this manual prevents the liquid inside the lower casing 4 from spreading to the end of the test strip 14 before the liquid on the test strip 14, even when the amount of liquid added is excessive. This prevents the absorbent paper 17 at the end of the test strip 14 from becoming saturated first, thus affecting the siphon effect of the liquid on the test strip 14 and consequently impacting the accuracy of the test. Furthermore, the multi-analytical reagent kit provided in this manual features a single sample well and eliminates the need for a dispensing cotton pad to overlap the test strip, enabling multi-item combined testing and improving operational convenience. The multi-analytical reagent kit provided in this manual also ensures that both insufficient and excessive liquid amounts will not affect the test results.

[0100] The above description is merely an embodiment of this disclosure, which enables those skilled in the art to understand and implement this disclosure. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

Claims

1. A multi-detection kit, characterized in that, include: Upper shell (1); and The lower housing (4) is detachably connected to the upper housing (1); The lower housing (4) carries the test strip (14), and the inner surface of the lower housing (4) is provided with a first blocking mechanism (8). The first blocking mechanism (8) is used to prevent the liquid in the lower housing (4) from reaching the end of the test strip (14) before the liquid on the test strip (14).

2. The multi-detection kit according to claim 1, characterized in that, The first blocking mechanism (8) is either linear or non-linear.

3. The multi-detection kit according to any one of claims 1 to 2, characterized in that, The straight-line distance between the two ends of the first blocking mechanism (8) is greater than the straight-line distance of the outer end of the test strip (14) in the width direction.

4. The multi-detection kit according to any one of claims 1 to 3, characterized in that, The first blocking mechanism (8) is placed in the rear section of the assembled test strip (14).

5. The multi-detection kit according to any one of claims 1 to 4, characterized in that, The inner surface of the lower housing (4) is provided with a liquid storage device (5) and a support element (18). The beginning of the support element (18) is placed inside the liquid storage device (5) and extends outward. The support element (18) is used to support the test strip (14), and the number of support elements (18) is equal to the number of test strips (14).

6. The multi-detection kit according to any one of claims 1 to 5, characterized in that, The support element (18) includes a first support rib (6), a second support rib (11) and a third support rib (12) arranged in sequence, wherein the first support rib (6) extends outward from inside the liquid storage device (5); The test strip (14) includes a sample pad (15), a test area (16), and absorbent paper (17) arranged in sequence; The test strip (14) is fixed to the top of the support element (18) under the action of the upper shell (1).

7. The multi-detection kit according to any one of claims 1 to 6, characterized in that, The first blocking mechanism (8) is located below the intersection area of ​​the test area (16) and the absorbent paper.

8. The multi-detection kit according to any one of claims 1 to 7, characterized in that, The first support rib (6) extends upward from the inner surface of the lower shell (4) to form a slope (7) until the highest point of the slope (7) is flush with the second support rib (11) and the third support rib (12), and continues to extend outward from the liquid storage device (5).

9. The multi-detection kit according to any one of claims 1 to 8, characterized in that, The beginning of the test strip is aligned with the slope, thereby reducing the height of the beginning of the test strip; and / or The ramp, the first support rib, and the front section of the liquid storage device enclose the liquid distribution area.

10. The multi-detection kit according to any one of claims 1 to 9, characterized in that, A second blocking mechanism (9) is provided between the supporting elements (18), and the second blocking mechanism (9) is located inside the liquid storage device (5). The second blocking mechanism (9) is flush with the top surface of the assembled test strip (14).

11. The multi-detection kit according to any one of claims 1 to 10, characterized in that, The liquid storage device is equipped with a second blocking mechanism inside, and the supporting element, the liquid storage device and the second blocking mechanism form a liquid separation zone.

12. The multi-detection kit according to any one of claims 1 to 11, characterized in that, The liquid storage device is also provided with a third blocking mechanism, and the second blocking mechanism and the third blocking mechanism are distributed in a stepped manner along the liquid flow direction.

13. The multi-detection kit according to any one of claims 1 to 12, characterized in that, A third blocking mechanism (13) is also provided between the supporting elements (18). The third blocking mechanism is located on the same horizontal line as the end of the liquid storage device (5), and the top surface of the third blocking mechanism is flush with the top surface of the liquid storage device (5).

14. The multi-detection kit according to any one of claims 1 to 13, characterized in that, The liquid storage device (5) has openings (10) on its opposite side walls.

15. The multi-detection kit according to any one of claims 1 to 14, characterized in that, The upper shell (1) includes a sample inlet (2) and an observation window (3) arranged in sequence. The number of observation windows (3) is the same as the number of test strips (14), and the orthographic projection of the observation window (3) is located on the test area (16).

16. The multi-detection kit according to any one of claims 1 to 15, characterized in that, The sample inlet (2) has a funnel-shaped structure with a larger top and a smaller bottom, and the orthographic projection of the sample inlet (2) is located inside the liquid storage device (5) and between the test strips (14).

17. The multi-detection kit according to any one of claims 1 to 16, characterized in that, When the upper housing (1) is connected to the lower housing (4), the bottom end of the sample inlet (2) abuts against the test strip (14) to fix the test strip on the support element (18).

18. A multi-detection kit, characterized in that, include: Upper shell (1); and The lower housing (4) is detachably connected to the upper housing (1), and the lower housing (4) is provided with a support element (18) for carrying the test strip (14); The lower housing (4) is also provided with a liquid storage device (5), which has a second blocking mechanism (9) inside; the supporting element (18), the liquid storage device (5) and the second blocking mechanism (9) form a liquid separation zone.

19. The multi-detection kit according to claim 18, characterized in that, The liquid storage device (5) is also provided with a third blocking mechanism (13), and the second blocking mechanism (9) and the third blocking mechanism (13) are distributed in a stepped manner along the liquid flow direction.

20. The multi-detection kit according to claim 18 or 19, characterized in that, The third blocking mechanism (13) is at the same horizontal line as the end of the liquid storage device (5), and the top surface of the third blocking mechanism (13) is flush with the top surface of the liquid storage device (5).

21. The multi-detection kit according to any one of claims 18 to 20, characterized in that, The top surface of the second blocking mechanism (9) is flush with the top surface of the assembled test strip (14).

22. The multi-detection kit according to any one of claims 18 to 21, characterized in that, The support element (18) includes a first support rib (6), a second support rib (11) and a third support rib (12), wherein the first support rib (6) extends from the liquid storage device (5) along the liquid flow direction.

23. The multi-detection kit according to any one of claims 18 to 22, characterized in that, The first support rib (6) starts at a ramp (7) extending from the inner surface of the lower shell (4), and the starting end of the test strip (14) fits against the ramp (7), thereby reducing the height of the starting end of the test strip (14).

24. The multi-detection kit according to any one of claims 18 to 23, characterized in that, The slope (7), the first support rib (6), and the front section of the liquid storage device (5) form a liquid distribution area.

25. The multi-detection kit according to any one of claims 18 to 24, characterized in that, The liquid storage device (5) has openings (10) on both sides.

26. The multi-detection kit according to any one of claims 18 to 25, characterized in that, The test strip (14) includes a sample pad (15), a test area (16), and absorbent paper (17). A first blocking mechanism (8) is provided in the area of ​​the lower housing (4) below the test area (16).

27. The multi-detection kit according to any one of claims 18 to 26, characterized in that, The upper shell (1) includes a sample inlet (2) and an observation window arranged in sequence. The number of observation windows is the same as the number of test strips (14), and the orthographic projection of the observation window is located in the test area (16).

28. The multi-detection kit according to any one of claims 18 to 27, characterized in that, The sample inlet (2) is funnel-shaped with a larger top and a smaller bottom, and the orthographic projection of the sample inlet (2) is located inside the liquid storage device (5) and between the test strips (14).

29. The multi-detection kit according to any one of claims 18 to 28, characterized in that, When the upper housing (1) is connected to the lower housing (4), the bottom end of the sample inlet (2) abuts against the test strip (14) and fixes the test strip (14) on the support element (18).

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