Multi-channel test strip clamping shell and detection card

Abstract

The utility model relates to the technical field of medical instruments, in particular to a multi-channel test strip clamping shell and a detection card, the multi-channel test strip clamping shell comprises a shell, a plurality of mounting tables are arranged in the shell at intervals in the length direction of the shell, and test strip channels used for containing test strips are formed; a gap is formed between the bottom wall, between the adjacent mounting tables, of the shell and the test strip; a sample adding opening and an observation window are formed in the shell cover, the shell cover covers the shell, the sample adding opening is located in front of the test paper channel, and the observation window is right opposite to the test paper channel and used for exposing a detection line of the test paper strip. The situation that the color of the detection line becomes light can be reduced, and the backflow phenomenon is reduced.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a multi-channel test strip card housing and a detection card. Background Art

[0002] The immunochromatographic test card is a portable diagnostic tool commonly used to quickly detect the presence of a target substance. It includes a card shell assembled by an upper cover and a lower cover, wherein the upper cover is provided with a sample addition hole and at least three observation ports; the inner cavity of the lower cover is formed with at least three test paper channels for embedding test papers, and a diversion portion adjacent to one end of the test paper channel, and the test paper strip is used to detect the test liquid by dripping the test liquid into the sample addition hole. During the flow of the test liquid, there will be a gap between the test paper strip and the bottom surface, which will produce liquid capillary action, resulting in too much liquid in the test paper strip, which is easy to cause the color of the test line to become lighter, and it is easy to cause reflux. Utility Model Content

[0003] The purpose of the present application is to provide a multi-channel test strip jam, which can reduce the occurrence of the situation where the color of the test line becomes lighter and reduce the backflow phenomenon.

[0004] In the first aspect, the present application provides a multi-channel test strip card using the following technical solution:

[0005] A multi-channel test strip card comprises:

[0006] A housing, wherein a plurality of mounting platforms are arranged in the housing along the length direction thereof at intervals to form a test paper channel for placing the test paper strip, so that there is a gap between the bottom wall of the housing located between adjacent mounting platforms and the test paper strip;

[0007] A shell cover is provided with a sample adding port and an observation window, and the shell cover is covered with the shell body, the sample adding port is located in front of the test paper channel, and the observation window is opposite to the test paper channel, and is used to reveal the detection line of the test paper strip.

[0008] There is a gap between the test strip and the bottom wall of the test strip channel. After the liquid to be tested is dripped into the test card, the flow of the liquid to be tested is divided into two places. Most of the liquid to be tested flows in the test strip, that is, the capillary phenomenon in the test strip. There is also a part of the liquid to be tested moving in the gap between the test strip and the bottom surface. At this time, there is also a capillary phenomenon between the liquid to be tested in the gap and the test strip, so that the liquid to be tested in the gap enters the test strip.

[0009] Because the liquid to be tested in the gap also enters the test strip, resulting in excessive liquid in the test strip, it is easy to cause the color of the test line to become lighter, and it is easy to cause reflux, which will affect the final test result;

[0010] By adopting the above technical solution, a plurality of mounting platforms are arranged at intervals, so that a gap is provided between the bottom wall of the shell located between adjacent mounting platforms and the test strip, so that the liquid to be tested in the gap flows into the gap, reducing the possibility of capillary phenomenon between the liquid to be tested in the gap and the test strip, and collecting the liquid to be tested in the gap, thereby reducing the occurrence of liquid reflux and increasing the accuracy of the test results.

[0011] Optionally, a plurality of test paper channels are provided in the shell in the width direction of the shell.

[0012] By adopting the above technical solution and setting up multiple test paper channels, a different test paper strip can be placed in each test paper channel. When the liquid to be tested is dripped into the sample addition port, it contacts multiple test paper strips, thereby being able to simultaneously test multiple test items on the liquid to be tested.

[0013] Optionally, each of the mounting platforms is provided with a plurality of card slots, and the plurality of card slots correspond one to one in the front-to-back direction to form the test paper channel.

[0014] By adopting the above technical solution, by opening a plurality of card slots on the mounting platform, the slot walls of the card slots can isolate a plurality of test strips, thereby achieving a better isolation effect and requiring less space, thus saving space.

[0015] Optionally, a plurality of isolation grooves are provided on the mounting platform near the sample adding port, and one isolation groove is provided between each of the adjacent test paper channels.

[0016] By adopting the above technical solution and setting the isolation groove, the isolation between different test strips is achieved, and the separation of liquid during chromatography is achieved at the same time.

[0017] Optionally, a plurality of partitions are fixedly connected to the shell cover, and the plurality of partitions correspond to the positions of the plurality of isolation grooves one by one and can be inserted into the corresponding isolation grooves.

[0018] By adopting the above technical solution, the partition is inserted into the isolation groove, that is, the partition is inserted between adjacent test strips, which further realizes the isolation between adjacent test strips and improves the isolation effect.

[0019] Optionally, a plurality of protrusions are fixedly connected to the shell cover, and the positions of the plurality of protrusions are arranged in one-to-one correspondence with the positions of the plurality of test paper channels and are used to limit the movement of the test paper strips.

[0020] By adopting the above technical solution, the protrusion is arranged so that the protrusion abuts against the test strip, thereby limiting the movement of the test strip, reducing the movement of the test strip in the test strip channel, and increasing the installation stability of the test strip.

[0021] Optionally, an electronic information card is installed on the shell cover.

[0022] By adopting the above technical solution, an electronic information card is fixedly installed on the shell cover, and the results analyzed by the detection machine can be input into the electronic information card for convenience, so as to record the detection results.

[0023] Optionally, both the shell cover and the shell body are provided with fool-proof structures, and the fool-proof structures are used to cooperate with the bosses in the socket of the detection machine.

[0024] By adopting the above technical solution and designing the fool-proof structure, the occurrence of reverse insertion of the detection card during the process of inserting the detection card into the detection machine can be reduced.

[0025] Optionally, a vent hole is provided on the shell cover, and the vent hole is located behind the observation window.

[0026] After the liquid to be tested is dripped in, the entire sample addition port is easily blocked. At this time, the air pressure in the entire cavity will increase during the flow of the liquid to be tested into the cavity, which may easily cause liquid reflux and affect the test results. By adopting the above technical solution and setting the vent hole, the air pressure in the cavity is ensured to be consistent with the external air pressure, thereby reducing the occurrence of liquid reflux.

[0027] In the second aspect, a test card provided by the present application adopts the following technical solution:

[0028] It comprises a test paper strip card case and a test paper strip, wherein the test paper strip is located in the test paper channel.

[0029] By adopting the above technical solution, by placing the test strip in the test strip channel, the occurrence of liquid reflux is reduced, thereby increasing the accuracy of the test results.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. By arranging multiple mounting platforms at intervals, a gap is formed between the bottom wall of the housing located between adjacent mounting platforms and the test strip, so that the second liquid to be tested flows into the gap, reducing the possibility of capillary phenomenon between the second liquid to be tested and the test strip, and collecting the second liquid to be tested, thereby reducing the occurrence of liquid reflux and increasing the accuracy of the test result;

[0032] 2. By setting up multiple test paper channels, a different test paper strip can be placed in each test paper channel. When the liquid to be tested is dripped into the sample injection port, it contacts multiple test paper strips, so that multiple test items can be tested on the liquid to be tested at the same time;

[0033] 3. An electronic information card is fixedly installed on the shell cover, which is convenient for inputting the results analyzed by the detection machine into the electronic information card and recording the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of a multi-channel test strip card case in an embodiment of the present application.

[0035] Figure 2 It is a schematic diagram of the structure of the shell of the embodiment of the present application.

[0036] Figure 3 It is a schematic diagram of the structure of the shell cover of the embodiment of the present application.

[0037] In the figure, 1, shell cover; 11, sample injection port; 12, observation window; 13, vent hole; 14, electronic information card; 15, baffle; 16, partition; 17, protrusion;

[0038] 2. Shell; 21. Mounting platform; 22. Gap; 23. Isolation slot;

[0039] 3. Cavity;

[0040] 4. Foolproof structure;

[0041] 5. Test paper channel; 51. Card slot. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0043] A multi-channel test strip is stuck, referring to Figure 1 and Figure 2 , comprising a shell cover 1 and a housing 2, the shell cover 1 and the housing 2 are overlapped and fixedly connected to each other, and in this embodiment, the shell cover 1 and the housing 2 are fixedly connected to each other by a buckle. The shell cover 1 and the housing 2 are overlapped to form a card case, and a cavity 3 is provided in the card case, and the cavity 3 is used to install the test strip.

[0044] Reference Figure 2 and Figure 3 , a sample adding port 11 is provided on the shell cover 1, and the sample adding port 11 is located at the front end of the shell cover 1 and is connected to the cavity 3. In order to facilitate the dripping of the liquid to be tested, the sample adding port 11 is in a flared shape. The liquid to be tested is dripped into the cavity 3 from the sample adding port 11, so as to contact the test strip in the cavity 3, and then the liquid to be tested is detected by the test strip. In order to facilitate the observation of the detection line on the test strip, an observation window 12 is provided on the shell cover 1, and the position of the observation window 12 corresponds to the position of the detection line on the test strip. In the present embodiment, a transparent glass plate is fixedly installed at the observation window 12, and the observation window 12 is closed by the transparent glass plate to reduce the possibility of external dust or other debris falling onto the test strip.

[0045] In order to reduce labor costs, after the test strip is tested, the entire test card is inserted into the test machine, which takes a picture of the position of the observation window 12, and analyzes the test results by analyzing the color change of the test line in the picture. In order to facilitate the recording of the test results, an electronic information card 14 is fixedly installed on the shell cover 1, and the results analyzed by the test machine are input into the electronic information card 14, so as to record the test results.

[0046] In order to reduce the situation that the detection card is inserted upside down during the process of inserting the detection card into the detection machine, the shell cover 1 and the shell 2 are both provided with a foolproof structure 4, and the two foolproof structures 4 are in corresponding positions. The inner fixed connection of the detection machine socket is connected with a pair of bosses. When the detection card is inserted into the detection machine, the foolproof structure 4 corresponds to the boss position. When the detection card is inserted upside down, the boss will limit the detection card from being fully inserted into the detection machine socket, thereby ensuring that the detection card is inserted in the positive direction so that the detection machine can be used correctly to analyze the detection card. In this embodiment, the foolproof structure 4 is a notch, and the notch is adapted to the boss.

[0047] After the liquid to be tested is dripped in, the entire sample addition port 11 is easily blocked. At this time, the air pressure in the entire cavity 3 will increase during the flow of the liquid to be tested into the cavity 3, which may easily cause liquid backflow and affect the test results. In order to reduce liquid backflow, a vent hole 13 is provided on the shell cover 1. Through the setting of the vent hole 13, the air pressure in the cavity 3 is guaranteed to be consistent with the external air pressure, thereby reducing the occurrence of liquid backflow. In this embodiment, the vent hole 13 is in the form of a long strip hole and is arranged along the width direction of the shell cover 1, and is arranged at one end of the shell cover 1 away from the sample addition port 11.

[0048] In order to reduce the turbulence of the liquid to be tested in the cavity 3, a baffle plate 15 is fixedly connected to the shell cover 1. The baffle plate 15 is bent multiple times to form an n-type plate and the opening of the baffle plate 15 is set toward the test strip. The position of the sample addition port 11 corresponds to the position of the baffle plate 15, ensuring that the liquid to be tested entering from the sample addition port 11 can move toward the direction close to the test strip under the limitation of the guide plate.

[0049] A plurality of mounting platforms 21 are arranged in the housing 2 along its length to form a test paper channel 5 for placing the test paper strip, so that there is a gap 22 between the bottom wall of the housing 2 located between adjacent mounting platforms 21 and the test paper strip. The sample adding port 11 is located in front of the test paper channel 5, and the observation window 12 is directly opposite to the test paper channel 5 for revealing the test line of the test paper strip. The liquid to be tested enters the cavity 3 from the sample adding port 11, and then flows into the test paper channel 5, and contacts the test paper strip placed in the test paper channel 5, so that the test paper strip detects the liquid to be tested, and the detection line changes color due to the detection, and the detection line is observed through the observation window 12.

[0050] The test strip is placed in the test strip channel 5. Because the test strip is not completely in contact with the inner bottom wall of the test strip channel 5, there is a gap between the test strip and the inner bottom wall of the test strip channel 5. After the liquid to be tested enters the cavity 3, a part of it flows into the test strip under the action of the wool, and the other part flows into the gap. By setting the gap 22, the liquid to be tested that flows into the gap can reduce the capillary action between the immunochromatographic test strip and the inner bottom wall of the card slot 51 and can collect excess liquid to be tested, thereby reducing liquid reflux and increasing the accuracy of the test results of the test strip.

[0051] There are a plurality of test paper channels 5 , and each test paper channel 5 can accommodate a test paper strip, so that multiple tests can be performed on the liquid to be tested at the same time.

[0052] Each mounting platform 21 is provided with a plurality of slots 51, and a plurality of slots 51 are parallel to each other, and a plurality of slots 51 correspond to each other in the front-to-back direction to form the above-mentioned test paper channel 5. In other embodiments, the test strips can also be directly placed on the mounting platform 21. In this case, a reserved space needs to be set between adjacent test strips to reduce interference between multiple test strips. By providing a plurality of slots 51 on the mounting platform 21, the slot walls of the slots 51 isolate multiple test strips, the isolation effect is better, less space is required, and space is saved.

[0053] A plurality of isolation grooves 23 are provided on the mounting platform 21 near the sample adding port 11. An isolation groove 23 is provided between each adjacent test strip channel 5. The isolation grooves 23 are provided to achieve isolation between different test strips and separation of liquids during chromatography.

[0054] A plurality of partitions 16 are fixedly connected to the shell cover 1. The plurality of partitions 16 correspond to the plurality of isolation slots 23 one by one and can be inserted into the corresponding isolation slots 23. By inserting the partitions 16 into the isolation slots 23, the partitions 16 are inserted between adjacent test strips, thereby further isolating the adjacent test strips and increasing the isolation effect.

[0055] A plurality of protrusions 17 are fixedly connected to the shell cover 1, and the plurality of protrusions 17 are divided into a plurality of groups along the length direction of the shell cover 1. Each group of protrusions 17 is arranged along the width direction of the shell cover 1 and corresponds one-to-one with the positions of a plurality of test paper channels 5. When the shell cover 1 and the housing 2 are covered with each other, the plurality of protrusions 17 press the corresponding test paper strips, thereby limiting the movement of the test paper strips.

[0056] In this embodiment, the protrusion 17 corresponding to the position of the sample pad on the test strip is in a truncated cone shape, and the protrusion 17 corresponding to the position of the absorbent paper on the test strip is also in a truncated cone shape. The remaining protrusions 17 are all in a stepped shape. In other embodiments, the shape of the protrusion 17 can also be rectangular or other shapes, as long as the test strip can be fixed.

[0057] The implementation principle of the embodiment of the present application is: different test strips are placed in each test strip channel 5, and the test liquid is dripped into the sample addition port 11, and the test liquid contacts with different test strips respectively, so that the test liquid is tested multiple times at the same time.

[0058] The present embodiment further discloses a detection card, comprising the above-mentioned test strip card housing and a test strip, wherein the test strip is located in the test strip channel 5. In the present embodiment, there are several test strip channels 5, each of which has a test strip placed therein, and the detection items of each test strip are different.

[0059] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-channel test strip stuck, characterized in that: include: A housing (2), wherein a plurality of mounting platforms (21) are arranged at intervals along the length direction of the housing (2) to form a test paper channel (5) for placing a test paper strip, so that a gap (22) exists between the bottom wall of the housing (2) located between adjacent mounting platforms (21) and the test paper strip; A shell cover (1), wherein the shell cover (1) is provided with a sample addition port (11) and an observation window (12), and the shell cover (1) is covered with the housing (2), the sample addition port (11) is located in front of the test paper channel (5), and the observation window (12) is directly opposite to the test paper channel (5) and is used to reveal the detection line of the test paper strip.

2. A multi-channel test strip jam according to claim 1, characterized in that: In the width direction of the housing (2), a plurality of test paper channels (5) are arranged in the housing (2).

3. A multi-channel test strip jam according to claim 2, characterized in that: A plurality of card slots (51) are provided on each of the mounting platforms (21), and the plurality of card slots (51) correspond one to one in the front-to-back direction to form the test paper channel (5).

4. A multi-channel test strip jam according to claim 3, characterized in that: A plurality of isolation grooves (23) are provided on the mounting platform (21) near the sample adding port (11), and one isolation groove (23) is provided between each of the adjacent test paper channels (5).

5. A multi-channel test strip jam according to claim 4, characterized in that: A plurality of partitions (16) are fixedly connected to the shell cover (1); the plurality of partitions (16) correspond to the plurality of isolation grooves (23) in position one-to-one and can be inserted into the corresponding isolation grooves (23).

6. A multi-channel test strip jam according to claim 2, characterized in that: A plurality of protrusions (17) are fixedly connected to the shell cover (1), and the positions of the plurality of protrusions (17) are arranged in one-to-one correspondence with the positions of the plurality of test paper channels (5) and are used to restrict the movement of the test paper strips.

7. A multi-channel test strip jam according to claim 1, characterized in that: An electronic information card (14) is mounted on the shell cover (1).

8. A multi-channel test strip jam according to claim 1, characterized in that: The shell cover (1) and the shell body (2) are both provided with a foolproof structure (4), and the foolproof structure (4) is used to cooperate with a boss in the socket of the detection machine.

9. A multi-channel test strip jam according to claim 1, characterized in that: The shell cover (1) is provided with a vent hole (13), and the vent hole (13) is located behind the observation window (12).

10. A detection card, characterized in that: It comprises a test strip cartridge and a test strip as claimed in any one of claims 1 to 9, wherein the test strip is located in the test strip channel (5).

Images