Duplex detection device

Abstract

The utility model provides a duplex detection device, which relates to the field of in-vitro medical detection and comprises an upper shell cover and a lower shell, and two pieces of detection test paper are mounted on the upper shell cover and the lower shell in a matched manner; two groups of mounting grooves are symmetrically formed in the inner side wall of the lower shell, the two pieces of test paper are respectively and vertically mounted in the mounting grooves, two observation windows and two sample adding holes are correspondingly formed in the upper shell cover, liquid guide grooves are formed in the back surfaces of the sample adding holes and are connected with the test paper, and a partition plate is arranged between the two pieces of test paper. And the partition plate is arranged between the two sample adding holes. According to the utility model, the partition plate is arranged between the two pieces of test paper, so that cross contamination caused by overflow of reagents is effectively prevented; a liquid guide groove is formed in the back surface of the sample adding hole, so that liquid flow is promoted, an accommodating space is provided, liquid can be prevented from being accumulated at the end part, and the problem of poor flowability of a sample with relatively high viscosity is effectively relieved; the structure is simple, the detection time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of in vitro medical detection, and particularly to a dual detection device. Background Art

[0002] With the diversified penetration of point-of-care testing (POCT) scenarios such as home health monitoring, disease screening, and food safety management, the application boundary of immunochromatography technology is accelerating its extension to the consumer side. The housing design of the core carrier - the home immunochromatography reagent card faces two technical challenges: structural requirements and functional requirements.

[0003] The existing Chinese patent with the publication number CN112285358A discloses a dual detection reagent card for canine C-reactive protein and pancreatic specific lipase, including a dual detection reagent card body, which is composed of a card surface and a card bottom. A canine C-reactive protein immunochromatography test strip and a canine pancreatic specific lipase immunochromatography test strip are arranged between the card bottom and the card surface. A CRP sample adding end and a cPL sample adding end are arranged on the upper side of the card surface; both the canine C-reactive protein immunochromatography test strip and the canine pancreatic specific lipase immunochromatography test strip are composed of a sample pad, a conjugate pad, a coated membrane, and a blotting paper that are sequentially lapped and pasted on a PCV material bottom plate, and a detection T zone and a quality control C zone are arranged on the coated membrane.

[0004] The structure of the dual detection reagent card in the prior art is complex, and a large sample addition amount easily leads to overflow, resulting in cross-contamination. There is also a problem that the fluidity of samples with high viscosity is poor. Therefore, it is necessary to provide a dual detection device with a simple structure that can block cross-contamination, promote liquid flow and provide a containing space, shorten the detection time required by the operator, thereby improving work efficiency, and ensuring the reliability and safety of detection. Summary of the Utility Model

[0005] Aiming at the defects in the prior art, the purpose of the utility model is to provide a dual detection device.

[0006] According to a dual detection device provided by the utility model, it includes: an upper shell cover and a lower housing, and two detection test strips are cooperatively installed by the upper shell cover and the lower housing;

[0007] Two groups of installation grooves are symmetrically arranged on the inner side wall of the lower housing, and two detection test strips are respectively vertically installed in the installation grooves. Two observation windows and two sample adding holes are correspondingly opened on the upper shell cover. A liquid guiding groove is arranged on the back of the sample adding hole, and the liquid guiding groove is connected to the detection test strip. A partition is arranged between the two detection test strips, and the partition is arranged between the two sample adding holes;

[0008] One or more limiting grooves are arranged on the edges of the upper shell cover and the lower housing.

[0009] Preferably, the height of the partition is higher than the cavity height of the installation groove.

[0010] Preferably, the partition completely separates the two sample addition holes, and the two sample addition holes are not connected.

[0011] Preferably, the liquid guide groove extends obliquely downward from the bottom of the sample addition hole to the lower side, is strip-shaped, and the cross-sectional shape includes a semi-circular shape or a trapezoidal shape.

[0012] Preferably, the liquid guide groove has a concave structure, the groove wall is smooth, and slopes or rounded corners are provided at both ends for transition.

[0013] Preferably, a plurality of pressing columns for pressing the test strip are uniformly arranged on the inner side wall of the upper shell cover, and the pressing columns are arranged on the upper side of the observation window.

[0014] Preferably, a plurality of upper positioning columns are arranged on the inner side wall of the upper shell cover, and a plurality of lower positioning columns are correspondingly arranged on the inner side wall of the lower shell. The upper shell cover and the lower shell are tightly connected through the cooperation of the upper positioning columns and the lower positioning columns.

[0015] Preferably, three groups of symmetric upper positioning columns are arranged on the inner side wall of the upper shell cover. Two groups of upper positioning columns are respectively located on the upper and lower sides of the inner side wall of the upper shell cover, and the third group of upper positioning columns is arranged on the lower side of the observation window.

[0016] Preferably, two groups of pressing strips are arranged between the third group of upper positioning columns, and the pressing strips respectively press the two test strips.

[0017] Preferably, a plurality of rib strips are further arranged on the inner side wall of the lower shell.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] By arranging a partition between the two test strips, the utility model effectively prevents cross-contamination caused by reagent overflow; by designing a liquid guide groove on the back of the sample addition hole, it promotes liquid flow and provides a receiving space, and can prevent liquid from accumulating at the end, effectively alleviating the problem of poor fluidity of samples with high viscosity; the structure is simple, which can reduce experimental errors caused by difficult assembly, shorten the detection time required by the operator, thereby improving work efficiency, and at the same time ensuring the reliability and safety of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the utility model will become more obvious:

[0021] Figure 1 It is a front view diagram mainly showing the upper shell cover of the utility model;

[0022] Figure 2 This is a schematic diagram mainly showing the inner side of the upper shell cover of the present utility model;

[0023] Figure 3 This is a schematic diagram mainly showing the inner side of the lower housing of the present utility model.

[0024] Reference numerals:

[0025] Specific embodiments

[0026] The present utility model will be described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present utility model, but do not limit the present utility model in any form. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several changes and improvements can still be made. These all belong to the protection scope of the present utility model.

[0027] As Figures 1-3 shown, a double - detection device provided according to the present utility model includes: an upper shell cover 1 and a lower housing 11. Two test strips are cooperatively installed between the upper shell cover 1 and the lower housing 11. Two groups of installation grooves 10 are symmetrically arranged on the inner side wall of the lower housing 11, and the two test strips are respectively vertically installed in the installation grooves 10. Two observation windows 2 and two sample - adding holes 3 are correspondingly provided on the upper shell cover 1. A liquid - guiding groove 8 is provided on the back of the sample - adding hole 3, and the liquid - guiding groove 8 is connected to the test strip. A partition 12 is arranged between the two test strips, and the partition 12 is arranged between the two sample - adding holes 3. One or more limiting grooves 4 are arranged at the edges of the upper shell cover 1 and the lower housing 11.

[0028] The height of the partition 12 is higher than the cavity height of the installation groove 10, that is, the height should be higher than the cavity height where the test strip is located, ensuring that even if a large amount of liquid overflows, it will be effectively blocked by the partition 12 and will not cross over the partition 12 from above to reach the other side, effectively solving the problem of cross - contamination caused by reagent overflow.

[0029] The partition 12 completely separates the two sample - adding holes 3, and the two sample - adding holes 3 are not communicated.

[0030] The liquid - guiding groove 8 extends obliquely downward from the bottom of the sample - adding hole 3 to the lower side, is in a long - strip shape, and the cross - sectional shape includes a semi - circular shape or a trapezoidal shape, aiming to promote liquid flow and provide an accommodation space.

[0031] The liquid - guiding groove 8 is a concave structure with a certain depth, and the groove wall is designed to be smooth to reduce the resistance when the liquid flows. The two ends of the liquid - guiding groove 8 are provided with slopes or rounded - corner transitions to prevent the liquid from accumulating at the ends, effectively alleviating the problem of poor fluidity of samples with high viscosity.

[0032] On the inner side wall of the upper shell cover 1, a plurality of pressing columns 6 for pressing the test strip are evenly arranged, and the pressing columns 6 are arranged on the upper side of the observation window 2.

[0033] On the inner side wall of the upper shell cover 1, a plurality of upper positioning columns 5 are arranged, and on the inner side wall of the lower shell 11, a plurality of lower positioning columns 9 are correspondingly arranged. The upper shell cover 1 and the lower shell 11 are tightly connected through the cooperation of the upper positioning columns 5 and the lower positioning columns 9.

[0034] On the inner side wall of the upper shell cover 1, three groups of symmetric upper positioning columns 5 are arranged. Two groups of upper positioning columns 5 are respectively located on the upper and lower sides of the inner side wall of the upper shell cover 1, and the third group of upper positioning columns 5 is arranged on the lower side of the observation window 2.

[0035] Between the third group of upper positioning columns 5, two groups of pressing strips 7 are arranged, and the pressing strips 7 respectively press two test strips.

[0036] On the inner side wall of the lower shell 11, a plurality of rib strips 13 are also arranged.

[0037] In this application, the test strips for different detection indicators are fixed inside the detection device, and a partition 12 is arranged between the two test strips, effectively preventing cross-contamination caused by reagent overflow.

[0038] In this application, a liquid guide groove 8 is designed on the back of the sample adding hole 3 to solve the problem of poor fluidity of samples with high viscosity.

[0039] In the dual detection device of this application, by adding a partition 12 between the two test strips, cross-contamination caused by capillary siphon interference is blocked; at the same time, a liquid guide structure is integrated on the back of the sample adding hole 3, so that high-viscosity samples can complete siphon spreading within 10 seconds, significantly improving the detection consistency of complex samples such as blood samples / mucus.

[0040] The structure of this application is simple and concise, which can reduce experimental errors caused by difficult assembly, shorten the detection time required by the operator, thereby improving work efficiency, and at the same time ensuring the reliability and safety of detection.

[0041] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0042] The specific embodiments of the present utility model have been described above. It should be understood that the present utility model is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present utility model. Without conflict, the embodiments of the present application and the features in the embodiments can be combined arbitrarily with each other.

Claims

1. A dual detection device, characterized in that: include: An upper shell cover (1) and a lower shell (11), wherein the upper shell cover (1) and the lower shell (11) cooperate to mount two test strips; Two groups of mounting grooves (10) are symmetrically arranged on the inner side wall of the lower shell (11), and two test strips are vertically installed in the mounting grooves (10) respectively. Two observation windows (2) and two sample addition holes (3) are correspondingly opened on the upper shell cover (1), and a liquid guide groove (8) is arranged on the back of the sample addition hole (3), and the liquid guide groove (8) is connected to the test strips. A partition plate (12) is arranged between the two test strips, and the partition plate (12) is arranged between the two sample addition holes (3); One or more limiting grooves (4) are provided on the edges of the upper shell cover (1) and the lower shell body (11).

2. The dual detection device according to claim 1, characterized in that: The height of the partition plate (12) is higher than the cavity height of the installation groove (10).

3. The dual detection device according to claim 1, characterized in that: The partition (12) completely separates the two sample addition holes (3), and the two sample addition holes (3) are not connected.

4. The dual detection device according to claim 1, characterized in that: The liquid guiding groove (8) extends obliquely downward from the bottom of the sample adding hole (3) and is in the shape of a long strip, with a cross-sectional shape including a semicircular shape or a trapezoidal shape.

5. The dual detection device according to claim 1, characterized in that: The liquid-conducting groove (8) is of a concave structure, with smooth groove walls and slopes or rounded corners at both ends.

6. The dual detection device according to claim 1, characterized in that: A plurality of pressure columns (6) for pressing the test paper are evenly arranged on the inner side wall of the upper shell cover (1); the pressure columns (6) are arranged on the upper side of the observation window (2).

7. The dual detection device according to claim 1, characterized in that: A plurality of upper positioning columns (5) are arranged on the inner side wall of the upper shell cover (1), and a plurality of lower positioning columns (9) are correspondingly arranged on the inner side wall of the lower shell body (11); the upper shell cover (1) and the lower shell body (11) are fastened together by the upper positioning columns (5) and the lower positioning columns (9).

8. The dual detection device according to claim 1, characterized in that: Three groups of symmetrical upper positioning columns (5) are arranged on the inner side wall of the upper shell cover (1), two groups of upper positioning columns (5) are respectively located on the upper and lower sides of the inner side wall of the upper shell cover (1), and the third group of upper positioning columns (5) is arranged on the lower side of the observation window (2).

9. The dual detection device according to claim 8, characterized in that: Two groups of pressure strips (7) are arranged between the third group of upper positioning columns (5), and the pressure strips (7) respectively press the two test strips.

10. The dual detection device according to claim 1, characterized in that: A plurality of ribs (13) are also provided on the inner side wall of the lower shell (11).

Images