Detection card for DNA methylation

Abstract

The utility model discloses a DNA methylation detection card which comprises a card body, test paper is installed in the card body, a sample adding opening and an observation opening are formed in the card body, a sealing plate is connected to the card body in a sliding mode, the sealing plate can seal the sample adding opening when a result is waited, and a protection plate made of transparent materials is fixedly connected to the interior of the observation opening. According to the utility model, the sample adding port and the observation port can be covered and sealed when a test is waited, so that various impurities in the air are prevented from polluting a sample.

Description

Technical Field

[0001] The utility model relates to a DNA methylation detection card, belonging to the technical field of DNA methylation detection. Background Art

[0002] In order to facilitate the detection of DNA methylation, a detection card capable of detecting DNA methylation has now emerged. However, the observation port and the sample addition port of most of the detection cards are directly exposed to the air during detection. When waiting for the test results, various impurities in the air can easily contaminate the sample, thereby affecting the accuracy of the test results. In order to solve the above problem, the utility model provides a DNA methylation detection card. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the utility model provides a DNA methylation detection card, which can cover and seal the sample addition port and the observation port when waiting for the test, so as to prevent various impurities in the air from contaminating the sample.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a DNA methylation detection card, comprising a card body, a test paper is installed inside the card body, an interlayer is arranged inside the card body, the test paper is installed inside the interlayer, a sample addition port and an observation port are opened on the card body, the sample addition port and the observation port can communicate the test paper with the outside, a sealing plate is slidably connected to the card body, and the sealing plate can seal the sample addition port when waiting for the result, and when not testing, the sealing plate can cover and seal the sample addition port, and a protective plate of transparent material is fixedly connected to the inside of the observation port, which can protect the test paper without affecting the user's observation of the test result.

[0005] Preferably, a colorimetric paper is provided on one side of the observation port and on the card body, so that the user can compare the color of the test paper after detection.

[0006] Preferably, a bending portion is provided at the outer end of the sealing plate, and the bending portion surrounds the end of the card body and extends into a sliding groove provided on the card body, so that the sealing plate can slide stably on the card body.

[0007] Preferably, both side surfaces of one end of the bending portion located inside the slide slot are fixedly connected with spring sheets, and the spring sheets apply a pressing force to the slot wall of the slide slot, and the spring sheets pressing against the slot wall of the slide slot can play a damping role.

[0008] Preferably, the sealing plate is provided with a groove, and the interior of the groove is provided with a pattern for increasing friction, so that the user can push the sealing plate conveniently.

[0009] Preferably, a convex ring matched with the sample adding port is fixedly connected to the lower side of the sealing plate, so that the sealing plate can better seal the sample adding port.

[0010] Preferably, a limiting frame for limiting the inner end of the sealing plate is fixedly connected to the card body, so that the sealing plate can slide on the card body more stably.

[0011] Preferably, the sample adding port is in the shape of a funnel with a thick top and a thin bottom, which can facilitate users to add samples.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. A sliding sealing plate is set on the card body, so that the sample port and observation port can be sealed with the sealing plate while waiting for the test results, making the test results more accurate;

[0014] 2. The setting of the convex ring can not only prevent the sealing plate cover from sliding randomly when it is on the sample port, but also better seal the sample port and observation port;

[0015] 3. The setting of grooves and patterns enables users to push the sealing plate better and avoid slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the sample adding port of the utility model.

[0018] Figure 3 It is a cross-sectional view of the utility model.

[0019] Figure 4 For this utility model Figure 3 Enlarged view of point A.

[0020] In the figure: 1, card body, 2, test paper, 3, sample adding port, 4, observation port, 5, sealing plate, 6, limit frame, 7, protection plate, 8, colorimetric paper, 9, bending part, 10, slide groove, 11, spring piece, 12, convex ring, 13, groove. DETAILED DESCRIPTION

[0021] The present invention is described below with specific embodiments, but is not intended to be a limitation of the present invention.

[0022] Embodiment 1

[0023] In this embodiment, a DNA methylation detection card is provided, such as Figure 1 and Figure 2As shown, it includes a card body 1, a test paper 2 is installed inside the card body 1, an interlayer is provided inside the card body 1, the test paper 2 is installed inside the interlayer, a sample adding port 3 and an observation port 4 are provided on the card body 1, the sample adding port 3 and the observation port 4 can connect the test paper 2 with the outside, when in use, the sample can be added to the test paper 2 through the sample adding port 3, and the test result (i.e. the color of the test paper 2 below the observation port 4) can be observed through the observation port 4, a sealing plate 5 is slidably connected to the card body 1, and the sealing plate 5 can seal the sample adding port 3 when waiting for the result, when not tested, the sealing plate 5 can cover and seal the sample adding port 3 to prevent the test paper 2 from being contaminated, and when testing, the sealing plate 5 can be pushed away to add the sample to the inside of the sample adding port 3, and the inside of the observation port 4 is fixedly connected with a protective plate 7 of a transparent material, and the setting of the protective plate 7 can protect the test paper 2 from being contaminated and affecting the test result without affecting the user's observation of the test result.

[0024] A colorimetric paper 8 is provided on one side of the observation port 4 and on the card body 1 . The colorimetric paper 8 is adhered to the card body 1 , so that the user can compare the color of the test paper after the test and determine the result.

[0025] Combination Figure 3 and Figure 4 As shown, a bending portion 9 is provided at the outer end of the sealing plate 5, and the end of the sealing plate 5 away from the center of the card body 1 is the outer end, and the bending portion 9 surrounds the end of the card body 1 and extends into a slide groove 10 provided on the card body 1, so that the sealing plate 5 can slide stably on the card body 1.

[0026] The bending portion 9 is located inside the slide groove 10 and both sides thereof are fixedly connected with spring sheets 11, which apply a pressing force to the groove wall of the slide groove 10. The spring sheets 11 pressing against the groove wall of the slide groove 10 can play a damping role, so that the sealing plate 5 can remain stable and will not slide randomly in the absence of external force.

[0027] The sealing plate 5 is provided with a groove 13 , and the interior of the groove 13 is provided with a pattern for increasing friction. The arrangement of the groove 13 can facilitate the user to push the sealing plate 5 .

[0028] A convex ring 12 adapted to the sample adding port 3 is fixedly connected to the lower side of the sealing plate 5 . The provision of the convex ring 12 enables the sealing plate 5 to better seal the sample adding port 3 .

[0029] The sample adding port 3 is in the shape of a funnel with a thick top and a thin bottom. The funnel shape can facilitate users to add samples.

[0030] Embodiment 2

[0031] A limiting frame 6 for limiting the inner end of the sealing plate 5 is fixedly connected to the card body 1 . The setting of the limiting frame 6 can make the sealing plate 5 slide on the card body 1 more stably.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A DNA methylation detection card, comprising a card body (1), a test paper (2) installed inside the card body (1), a sample addition port (3) and an observation port (4) provided on the card body (1), characterized in that: A sealing plate (5) is slidably connected to the card body (1), and the sealing plate (5) can seal the sample addition port (3) while waiting for the result. A protective plate (7) made of a transparent material is fixedly connected to the inside of the observation port (4).

2. A DNA methylation detection card according to claim 1, characterized in that: A colorimetric paper (8) is provided on one side of the observation port (4) and located on the card body (1).

3. A DNA methylation detection card according to claim 1, characterized in that: The outer ends of the sealing plates (5) are each provided with a bending portion (9), and the bending portion (9) surrounds the end of the card body (1) and extends into a sliding groove (10) provided on the card body (1).

4. A DNA methylation detection card according to claim 3, characterized in that: The bending portion (9) is located inside the slide groove (10) and has spring sheets (11) fixedly connected to both side surfaces of one end thereof. The spring sheets (11) apply a pressing force to the groove wall of the slide groove (10).

5. A DNA methylation detection card according to claim 4, characterized in that: The sealing plate (5) is provided with a groove (13), and the interior of the groove (13) is provided with a pattern for increasing friction.

6. A DNA methylation detection card according to claim 3, characterized in that: A convex ring (12) adapted to the sample addition port (3) is fixedly connected to the lower side of the sealing plate (5).

7. A DNA methylation detection card according to claim 6, characterized in that: A limiting frame (6) for limiting the inner end of the sealing plate (5) is fixedly connected to the card body (1).

8. A DNA methylation detection card according to claim 1, characterized in that: The sample addition port (3) is in the shape of a funnel that is thick at the top and thin at the bottom.

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