Biotoxin detection card

Abstract

The utility model relates to the technical field of detection cards, and discloses a biotoxin detection card which comprises a shell and detection test paper, the shell comprises a bottom shell and a shell cover detachably installed on the bottom shell, the upper side face of the bottom shell is concaved inwards to form a driving groove and a containing groove which are communicated, and the containing groove is used for containing the detection test paper. A limiting piece for limiting the test paper in the placing groove is arranged in the driving groove in a sliding manner; the detection test paper comprises a bottom plate, a sample pad, a colloidal gold pad, a nitrocellulose membrane and an absorption pad are sequentially arranged on the bottom plate, a detection line is arranged on the nitrocellulose membrane, a sample adding hole corresponding to the sample pad is formed in the shell cover, and an observation opening corresponding to the nitrocellulose membrane is formed in the shell cover. The shell cover is detachably mounted on the bottom shell, meanwhile, the limiting piece moves in the driving groove, and the detection test paper is limited in the containing groove, so that the detection test paper can be better taken and placed, namely, the detection test paper of the detection card can be replaced, and the shell is repeatedly used.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection card technical field, specifically, relate to a biological toxin detection card. BACKGROUND

[0002] Biological toxin is also called biological poison, is the toxic substance produced by various organisms (animals, plants, microorganisms), is natural toxin, biological toxin is various, almost includes all types of compounds, and its biological activity is very complex, can produce influence to human physiological function, at present, biological toxin detection is carried out by adopting test paper card, directly adding sample solution from the sample adding hole of test paper card to detection test paper, the detection result is judged by observing the color change of detection test paper.

[0003] For example, the patent with the announcement number CN216449441U discloses a streptomycin detection test paper box, although the streptomycin detection test paper box can utilize the negative pressure inside the detection cavity to make the sample liquid inside the sample adding groove flow to the test paper quickly, and the sample liquid detection time is shortened, but when actually using, since the box body is not easy to disassemble, the detection test paper inside cannot be replaced, so that the box body cannot be used for multiple times, and therefore needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a biological toxin detection card to solve the problems in the above background.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A biological toxin detection card, comprising a shell and a detection test paper arranged in the shell, the shell comprises a bottom shell and a shell cover detachably arranged on the bottom shell, the upper side of the bottom shell is concave to form a driving groove and a placing groove in communication, the placing groove is used for placing the detection test paper, and a limiting piece for limiting the detection test paper in the placing groove is slidably arranged in the driving groove; the detection test paper comprises a bottom plate, a sample pad, a colloidal gold pad, a nitrocellulose membrane and an absorption pad are sequentially arranged on the bottom plate, the nitrocellulose membrane is provided with a detection line, a sample adding hole is arranged on the shell cover corresponding to the sample pad, and an observation port is arranged on the shell cover corresponding to the nitrocellulose membrane.

[0007] Further, the upper side of the bottom shell and the central position of the two end portions are provided with a slot, and the two end sides of the bottom shell are provided with a buckle groove in communication with the corresponding slot; the lower side of the shell cover and the two end portions are provided with a plug piece that can be inserted into the corresponding slot, and the plug piece is provided with a protruding block part that can be clamped into the buckle groove.

[0008] Furthermore, a sliding block is provided on the side wall opposite to the driving groove along the length direction of the bottom shell, and a groove is provided at the end of the sliding block near the placement groove; the limiting part includes a limiting plate slidably arranged in the driving groove, and the side wall of the limiting plate is provided with a sliding groove for the corresponding sliding block to slide into, and the side wall of the sliding groove is provided with a protrusion that can be inserted into the groove.

[0009] Furthermore, a handle groove is provided on the limiting plate.

[0010] Furthermore, the upper side of the bottom shell is concave on both sides of the slot to form positioning grooves, and the lower side of the shell cover is provided with positioning blocks extending into the corresponding positioning grooves.

[0011] Furthermore, a transparent partition is fixedly provided in the observation port.

[0012] Furthermore, the depth of the driving cavity is deeper than the depth of the placement cavity.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The shell cover is detachably mounted on the bottom shell. At the same time, the limiter moves in the driving slot to limit the test paper to the placement slot, thereby enabling the test paper to be taken and placed better. That is, the test card can be used to replace the test paper, so that the shell can be reused.

[0015] 2. By moving the limit plate along the sliding block, it can be moved to push the test paper extending into the driving slot into the placement slot for installation of the test paper. At the same time, the moving plate is away from the placement slot to facilitate the removal and placement of the test paper in the placement slot, making the use of the limiter more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic structural diagram of a biotoxin detection card in the present utility model.

[0017] Figure 2 The figure is a schematic diagram of the explosion structure of a biotoxin detection card in the present utility model.

[0018] Figure 3 It is a structural diagram of the test paper in this utility model.

[0019] Figure 4 This is a schematic structural diagram of the bottom shell of the utility model.

[0020] Figure 5 It is a structural diagram of the shell cover of the utility model.

[0021] The meanings of the numbers in the figure are: 110, bottom shell; 120, shell cover; 121, sample loading hole; 122, observation port; 201, drive slot; 202, placement slot; 203, slot; 204, buckle slot; 205, positioning slot; 210, test paper; 221, insert; 222, protrusion; 230, limit plate; 310, bottom plate; 311, sample pad; 312, colloidal gold pad; 313, nitrocellulose membrane; 3131, test line; 314, absorption pad; 401, sliding block; 402, groove; 411, sliding slot; 412, protrusion; 413, handle slot; 501, positioning block. DETAILED DESCRIPTION

[0022] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0023] The following is combined with Figure 1-Figure 5 This embodiment is described in further detail.

[0024] like Figure 1-5 As shown, a biotoxin detection card in this embodiment includes a housing and a detection test paper 210 disposed in the housing. The housing is used to place the detection test paper 210, provide structural support for the detection test paper 210, and protect it.

[0025] The housing includes a bottom shell 110 and a cover 120 detachably mounted on the bottom shell 110. The upper side of the bottom shell 110 is concave to form a drive slot 201 and a placement slot 202 that are connected to each other. The placement slot 202 is used to place the test paper 210. A limiting member is slidably provided in the drive slot 201 to limit the test paper 210 to the placement slot 202.

[0026] The test paper 210 includes a base plate 310, on which a sample pad 311, a colloidal gold pad 312, a nitrocellulose membrane 313 and an absorption pad 314 are arranged in sequence. The nitrocellulose membrane 313 is provided with a detection line 3131, and the shell cover 120 is provided with a sample addition hole 121 corresponding to the sample pad 311, and the shell cover 120 is provided with an observation port 122 corresponding to the nitrocellulose membrane 313.

[0027] In this embodiment, Figure 4 As shown, the depth of the driving groove 201 is deeper than the depth of the placement groove 202, thereby forming a step portion at the communication portion between the two. The step portion blocks the limiting member, so that when the limiting member moves to the step portion, the test paper 210 can be better limited in the placement groove 202;

[0028] Specifically, when the shell cover 120 is overlapped on the upper side of the bottom shell 110, the test paper 210 can be preferably pressed into the placement groove 202. The shell cover 120 is detachably mounted on the bottom shell 110, so that the test paper 210 in the placement groove 202 can be replaced during actual use, thereby allowing the shell to be used multiple times.

[0029] The bottom shell 110 and the shell cover 120 can be made of PVC plastic, so that when the test strip 210 is replaced, both can be cleaned and disinfected to avoid the residual sample solution in the shell affecting the detection of the replaced test strip 210;

[0030] In this embodiment, combined with Figure 3 As shown, the bottom plate 310 can be made of a PVC plate, which can fix the other components of the test paper 210. Specifically, the sample pad 311, the colloidal gold pad 312, the nitrocellulose membrane 313 and the absorption pad 314 are of existing structures, which are all fixed to the bottom plate 310 by pasting. The detection line 3131 is an antigen line for biotoxin detection. Therefore, when the shell cover 120 is installed on the bottom shell 110 so that the test paper 210 is installed in the placement groove 202, the sample addition hole 121 can correspond to the sample pad 311. At this time, the sample solution is dripped from the sample addition hole 121 to the sample pad 311 and moves to the colloidal gold pad 312 by capillary action. The biotoxins in the sample solution react with the colloidal gold pad 312 marked The biotoxin antibody reacts to form a conjugate, which continues to move to the detection line 3131 on the nitrocellulose membrane 313. Because the biotoxin antibody labeled in the colloidal gold pad 312 has only one binding site, after the corresponding biotoxin in the sample solution binds to it, the corresponding detection antigen on the detection line 3131 can no longer bind to the biotoxin antibody labeled with colloidal gold, so the detection line 3131 is colorless; when there is no corresponding biotoxin in the sample solution or the amount is below the detection limit, the biotoxin antibody labeled in the colloidal gold pad 312 reaches the detection line 3131 and is captured by the corresponding detection antigen, forming a red color visible to the naked eye. Therefore, the test result can be determined by observing the color change of the detection line 3131 through the observation port 122.

[0031] In actual use, in order to prevent the observation port 122 from affecting the detection effect of the test paper 210, a transparent partition is fixed in the observation port 122, and the color change of the detection line 3131 can be seen through the transparent partition.

[0032] In this embodiment, the limiting member slides in the driving groove 201, so that in actual use, when the limiting member moves to the step portion, the test paper 210 extending into the driving groove 201 can be better pushed into the placement groove 202, so that it can be stably placed, so that the sample loading hole 121 and the sample pad 311 and the observation port 122 and the nitrocellulose membrane 313 are aligned. When the limiting member moves away from the step portion, the limit on the test paper 210 is released, so that the test paper 210 in the placement groove 202 can be taken out.

[0033] In this embodiment, a slot 203 is provided on the upper side surface of the bottom shell 110 and located at the center position of the two ends, and buckle grooves 204 connected to the corresponding slots 203 are opened on the two end sides of the bottom shell 110; an insert 221 that can be extended into the corresponding slot 203 is provided on the lower side surface of the shell cover 120 and located at the two ends, and a protrusion 222 that can be snapped into the buckle groove 204 is provided on the insert 221.

[0034] In this embodiment, the insert 221 is also made of PVC plastic, which has a certain degree of deformation ability. It is integrally formed on the lower side of the shell cover 120. The insert 221 has a protruding portion 222 protruding outward from the side facing away from each other and located below. As a result, the insert 221 extends into the corresponding slot 203, and the protruding portion 222 snaps into the buckle groove 204, achieving overlapping installation of the shell cover 120 on the upper side of the bottom shell 110.

[0035] When the shell cover 120 needs to be disassembled, the buckle groove 204 squeezes the protrusion 222 to deform the insert 221, so that the protrusion 222 is separated from the buckle groove 204, so that the shell cover 120 can be disassembled. In this way, the shell can be disassembled and assembled preferably, so that the test paper 210 can be replaced.

[0036] In actual use, in order to facilitate the insertion of the plug 221 into the corresponding slot 203, the lower side wall of the protrusion 222 is provided with an arc-shaped inclined surface that matches the side wall of the slot 203. The arc-shaped inclined surface allows the plug 221 to be aligned with the slot 203 for insertion. The side wall of the slot 203 squeezes the arc-shaped inclined surface to deform the plug 221, thereby facilitating the insertion of the plug 221 into the slot 203, which is beneficial for actual use.

[0037] In this embodiment, a sliding block 401 is provided on the side wall opposite to the driving groove 201 along the length direction of the bottom shell 110, and a groove 402 is provided at the end of the sliding block 401 near the placement groove 202; the limiting member includes a limiting plate 230 that is slidably arranged in the driving groove 201, and a sliding groove 411 is provided on the side wall of the limiting plate 230 for the corresponding sliding block 401 to slide and engage, and a protrusion 412 that can be engaged in the groove 402 is provided on the side wall of the sliding groove 411.

[0038] In this embodiment, the sliding block 401 and the sliding groove 411 are matched to preferably realize the sliding installation of the limit plate 230 in the driving groove 201. The setting of the protrusion 412 and the groove 402 enables the limit plate 230 to slide to the step portion, so that the protrusion 412 is snapped into the groove 402, so that the limit plate 230 can be fixed, and the test paper 210 in the placement groove 202 is limited and fixed, thereby realizing the installation of the test paper 210 in the housing;

[0039] Among them, the protrusion 412 is also made of PVC material, and its deformation can better enable the limiting plate 230 to slide along the sliding block 401. By sliding the limiting plate 230 along the sliding block 401 to move it away from the step portion, the limitation of the test paper 210 in the placement slot 202 is released, thereby facilitating the removal and placement of the test paper 210 in the placement slot 202.

[0040] In this embodiment, in order to facilitate the operator to drive the limiting plate 230 to slide, a handle groove 413 is opened on the limiting plate 230.

[0041] In this embodiment, in order to ensure the stable installation of the shell cover 120 on the bottom shell 110, the upper side surface of the bottom shell 110 is concave to form positioning grooves 205 on both sides of the slot 203, and the lower side surface of the shell cover 120 is provided with positioning blocks 501 that extend into the corresponding positioning grooves 205. The positioning blocks 501 extend into the positioning grooves 205, so that the shell cover 120 is positioned when installed on the bottom shell 110, making the installation between the two more stable.

[0042] In short, the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention patent.

Claims

1. A biotoxin detection card, comprising a housing and a detection test paper (210) disposed in the housing, characterized in that: The shell comprises a bottom shell (110) and a shell cover (120) detachably mounted on the bottom shell (110); the upper side surface of the bottom shell (110) is concave to form a connected driving groove (201) and a placement groove (202); the placement groove (202) is used to place the test paper (210); a limiting member is slidably provided in the driving groove (201) for limiting the test paper (210) in the placement groove (202); the test paper (210) comprises a bottom plate (310); a sample pad (311), a colloidal gold pad (312), a nitrocellulose membrane (313) and an absorption pad (314) are arranged on the bottom plate (310) in sequence; a detection line (3131) is provided on the nitrocellulose membrane (313); a sample addition hole (121) is provided on the shell cover (120) corresponding to the sample pad (311); and an observation port (122) is provided on the shell cover (120) corresponding to the nitrocellulose membrane (313).

2. A biotoxin detection card according to claim 1, characterized in that: A slot (203) is provided on the upper side of the bottom shell (110) and at the center of both ends. Buckle slots (204) communicating with the corresponding slots (203) are provided on both end sides of the bottom shell (110). An insert (221) capable of extending into the corresponding slot (203) is provided on the lower side of the shell cover (120) and at both ends. A protrusion (222) capable of snapping into the buckle slot (204) is provided on the insert (221).

3. A biotoxin detection card according to claim 1, characterized in that: A sliding block (401) is provided on the side wall opposite to the driving groove (201) along the length direction of the bottom shell (110), and a groove (402) is provided at the end of the sliding block (401) close to the placement groove (202); the limiting member includes a limiting plate (230) slidably arranged in the driving groove (201), a sliding groove (411) for the corresponding sliding block (401) to slide and snap into is provided on the side wall of the limiting plate (230), and a protrusion (412) that can be snapped into the groove (402) is provided on the side wall of the sliding groove (411).

4. A biotoxin detection card according to claim 3, characterized in that: A handle groove (413) is provided on the limiting plate (230).

5. The biotoxin detection card according to claim 1, characterized in that: The upper side of the bottom shell (110) is concave on both sides of the slot (203) to form a positioning groove (205), and the lower side of the shell cover (120) is provided with a positioning block (501) extending into the corresponding positioning groove (205).

6. A biotoxin detection card according to claim 1, characterized in that: A transparent partition is fixedly provided in the observation port (122).

7. A biotoxin detection card according to claim 1, characterized in that: The depth of the driving cavity (201) is deeper than the depth of the placement cavity (202).

Images