Test paper structure and detection device
By setting up a sample storage module and a split carrier plate in the test strip structure of the detection device, the re-examination problem caused by error in the detection result in the prior art is solved, and the effect of single sample collection and reducing medical equipment losses is achieved.
Patent Information
- Application Number
- CN202421395429.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-19
AI Technical Summary
When existing testing devices screen infectious diseases, there is an error in the test results, resulting in the test results of some positive patients being negative or invalid, and re-examination is required, which increases the number of sample collections and the loss of medical equipment.
A test strip structure is designed, including a sample preprocessing module, a sample storage module, an enrichment module, a detection module and a recycling module. By setting the first mark on the carrier plate, the test strip is divided into a retention area and a discarded area. The sample storage module saves the samples, and during re-checking, the samples are directly obtained from the retention area for detection.
It realizes that only a single sample collection is required, which reduces the work intensity of staff and the loss of medical equipment, simplifies the re-examination process, reduces the inspection cost, and avoids the difficulty of subsequent sample destruction.
Smart Images
Figure CN223022127U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a test strip structure and a detection device. Background Art
[0002] When screening for infectious diseases, corresponding detection devices are usually used for detection. During detection, a sample (including the body fluid or secretion of the person to be tested) is added into the collection port of the detection device, and the sample contacts the test strip, thereby showing the detection result. However, there are certain errors in the detection result, so that the detection results of a small number of positive patients are negative or invalid. Therefore, in order to ensure the accuracy of the screening result, for those tested personnel with negative and invalid detection results, a professional detection instrument is required for re-examination to determine the final detection result. This requires collecting samples twice from these tested personnel. Moreover, during the initial detection, the detection result of the detection device is not known, so samples will be collected twice from all tested personnel. For the other sample of the tested personnel with a positive detection result (detected by the detection device), there is no need for re-examination, which not only increases the number of samples collected by the staff, but also increases the loss of medical equipment and the difficulty of subsequent destruction. Summary of the Utility Model
[0003] In view of this, the utility model provides a test strip structure and a detection device. By arranging a storage module on the test strip and storing the sample through the storage module, after the detection is completed, if the detection result is negative, the carrier plate can be broken along the first score line, so that the retention area is separated from the discard area. When re-examination is required, the sample can be directly obtained from the storage module on the retention area for re-examination, so that only a single sample collection is required, reducing the working intensity of the staff and the loss of medical equipment.
[0004] The technical solution adopted by the utility model is as follows:
[0005] A test strip structure includes a test strip and a carrier plate. The carrier plate is in a plate-like structure, and the test strip is laid on the carrier plate. In the thickness direction of the carrier plate, the test strip and the carrier plate overlap each other.
[0006] The test strip includes a sample pretreatment module, a sample storage module, an enrichment module, a detection module, and a recovery module connected in sequence.
[0007] The carrier plate is provided with a first score line, and the first score line divides the carrier plate into a retention area and a discard area. Among them, the sample pretreatment module and the sample storage module are located in the retention area, and the enrichment module, the detection module, and the recovery module are located in the discard area.
[0008] Preferably, the sample storage module is made of a glass cellulose membrane and a cellulose membrane.
[0009] Preferably, the length of the sample pretreatment module is 8-20 mm, the length of the sample storage module is 6-12 mm, the length of the enrichment module is 8-16 mm, the length of the detection module is 10-40 mm, and the length of the recovery module is 10-20 mm.
[0010] Preferably, the first score line is a punching line, which includes a plurality of hole segments and a plurality of line segments. The hole segments and the line segments are arranged alternately. The length of the hole segment is more than three times the length of the line segment, and the length of the line segment is not more than 2 mm.
[0011] The present utility model further relates to a detection device, which includes a housing, a sample pool and the aforementioned test strip structure. The housing is provided with a collection port and an observation window. The sample pool is located inside the housing. The collection port is communicated with the sample pool. The test strip structure is fixedly arranged inside the housing. One end of the test strip structure is connected to the sample pool. The sample pretreatment module in the test strip structure is close to the sample pool, and the recovery module in the test strip structure is far from the sample pool. The observation window at least covers the detection module;
[0012] The retention area on the test strip structure is closer to the sample pool than the discard area on the test strip structure;
[0013] The housing is provided with a second score line. In the length direction of the housing, the second score line divides the housing into a first split body and a second split body. The first score line and the second score line are located at the same position. The retention area is located in the first split body, and the discard area is located in the second split body.
[0014] Preferably, a first hook is connected to the upper wall of the first split body, and a second hook is connected to the lower wall of the first split body. The first hook and the second hook are located at one end of the first split body close to the second split body. The first hook faces the lower wall, and the second hook faces the upper wall. There is a first gap between the lower end of the first hook and the test strip structure, and a second gap between the upper end of the second hook and the test strip structure.
[0015] Preferably, the second score line is a punching line, which includes a plurality of hole segments and a plurality of line segments. The hole segments and the line segments are arranged alternately. The length of the hole segment is more than three times the length of the line segment, and the length of the line segment is not more than 2 mm.
[0016] Preferably, the housing includes an upper wall and a lower wall which are arranged opposite to each other up and down. The collection port and the observation window are formed on the upper wall. The collection port extends towards the lower wall with an annular guide wall, and the guide wall extends into the sample pool.
[0017] Preferably, the number of the collection ports is one, the number of the observation windows is two, the collection port is located at the middle position of the housing, and in the length direction, the two observation windows are located on both sides of the collection port;
[0018] The number of the test strip structures is two, and the two test strip structures are respectively located on both sides of the collection port;
[0019] The number of the second score lines on the housing is two, which respectively correspond to the first score lines on the two carrier plates. The part of the housing between the two second score lines is the first split body, and the part outside the second score lines is the second split body.
[0020] Advantages of the present utility model:
[0021] The test strip structure of the present utility model is applied to a detection device. When detecting through the detection device, a sample is dropped into a sampling pool from the collection port. The sample contacts the test strip, and the sample sequentially passes through a sample processing module, a sample storage module, an enrichment module and enters a detection module. The detection module detects the sample and displays the result, and finally enters a recovery module. The observation window corresponds to the detection module, so that the detection result can be directly seen. When the detection result is positive, the detection device can be directly discarded; when the detection result is negative or invalid, a re-inspection is required at this time. The housing can be broken along the second score line, so that the housing is divided into a first split body and a second split body. Moreover, in the length direction, the first score line and the second score line are located at the same position. Therefore, when the housing is broken, the carrier plate is also broken along the first score line, so that the carrier plate is divided into a reserved area and a discarded area, and the whole detection device is broken into two parts, namely a first part and a second part. The first part is the first split body and the reserved area located in the first split body, and the sample processing module and the sample storage module on the reserved area. The second part is the second split body and the discarded area located in the second split body, and the enrichment module, the detection module and the recovery module on the discarded area. The second part is discarded, and the first part is left. When re-inspecting, the sample can be directly obtained from the sample storage module of the first part for detection. Therefore, it is not necessary to repeat sample collection, reducing the labor intensity of the staff. In addition, only sequential sampling is required during initial sampling, without storing the two samplings separately, reducing the loss of medical equipment, reducing the detection cost, and also avoiding the difficulty of subsequent sample destruction. Description of the Drawings
[0022] Through the following description of the embodiments of the present utility model with reference to the drawings, the above and other objects, features and advantages of the present utility model will become clearer. In the drawings:
[0023] Figure 1 is a schematic structural diagram of the detection device;
[0024] Figure 2 It is a cross-sectional view of the detection device;
[0025] Figure 3 It is a schematic structural diagram of the carrier plate;
[0026] Figure 4 It is Figure 2 an enlarged view of part A in
[0027] In the figure: 1. housing; 2. sample pool; 3. carrier plate;
[0028] 11. collection port; 12. observation window; 13. second notch; 14. upper wall; 15. lower wall; 16. guiding wall; 17. first hook; 18. second hook;
[0029] 31. retention area; 32. discard area; 33. first notch;
[0030] 41. sample pretreatment module; 42. sample storage module; 43. enrichment module; 44. detection module; 45. recovery module. Specific embodiments
[0031] The following describes the present utility model based on embodiments, but the present utility model is not limited to these embodiments. In the following detailed description of the present utility model, some specific details are described in detail. In order to avoid obscuring the essence of the present utility model, well-known methods, processes, procedures, and components are not described in detail.
[0032] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only, and the drawings are not necessarily drawn to scale.
[0033] Unless the context clearly requires otherwise, the words "including", "comprising", and the like throughout the specification and claims should be construed in an inclusive sense rather than an exclusive or exhaustive sense; that is, the meaning of "including but not limited to".
[0034] In the description of the present utility model, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0035] Referring to Figures 1-4 , the present utility model provides a test strip structure, including a test strip and a carrier plate. The carrier plate is a plate-like structure, and the test strip is laid on the carrier plate. In the thickness direction of the carrier plate, the test strip and the carrier plate overlap each other.
[0036] The test strip includes a sample pretreatment module, a sample storage module, an enrichment module, a detection module, and a recovery module that are connected in sequence.
[0037] A first notch is provided on the carrier plate, and the first notch divides the carrier plate into a retention area and a discard area. Among them, the sample pretreatment module and the sample storage module are located in the retention area, and the enrichment module, the detection module, and the recovery module are located in the discard area.
[0038] The test strip structure of the present utility model is applied to a detection device. Taking the application of the test strip structure to a detection device as an example, the detection device includes a housing 1, a sample pool 2, and a test strip structure. A collection port 11 and an observation window 12 are provided on the housing 1. The sample pool 2 is located inside the housing 1. The collection port 11 is communicated with the sample pool 2. The carrier plate 3 is arranged inside the housing 1. One end of the carrier plate 3 is connected to the sample pool 2. The test strip is arranged on the carrier plate 3 (the test strip and the carrier plate 3 form the test strip structure).
[0039] The test strip includes a sample pretreatment module 41, a sample storage module 42, an enrichment module 43, a detection module 44, and a recovery module 45 that are connected in sequence. Among them, the sample pretreatment module 41 is close to the sample pool 2, the recovery module 45 is far from the sample pool 2, and the observation window 12 at least covers the detection module.
[0040] A first notch 33 is provided on the carrier plate 3. The first notch 33 divides the carrier plate 3 into a retention area 31 and a discard area 32. The retention area 31 is closer to the sample pool 2 than the discard area 32. The sample pretreatment module 41 and the sample storage module 42 are located in the retention area 31, and the enrichment module 43, the detection module 44, and the recovery module 45 are located in the discard area 32.
[0041] A second notch 13 is provided on the housing 1. The second notch 13 surrounds the housing 1 for one week. In the length direction of the housing 1, the second notch 13 divides the housing 1 into a first split body and a second split body. The first notch 33 and the second notch 13 are located at the same position. The retention area 31 is located in the first split body, and the discard area 32 is located in the second split body.
[0042] The detection device is overall in a long strip shape, and its cross-section is rectangular. The housing 1 includes an upper wall 14 and a lower wall 15. The four sides of the upper wall 14 and the lower wall 15 are connected by side walls. A collection port 11 and an observation window 12 are provided on the upper wall 14. A sample pool 2 is provided at the collection port 11. During detection, the sample is injected into the sample pool 2 from the collection port 11. A test strip is provided on the carrier plate 3. The sample pretreatment module 41 in the test strip is in contact with the sample pool 2, so the sample will enter the sample pretreatment module 41, enabling the sample to enter the test strip. In the test strip, the sample penetrates toward the side of the recovery module 45. Therefore, the sample will successively pass through the sample storage module 42, the enrichment module 43, the detection module 44 and enter the recovery module 45. The sample is filtered in the sample pretreatment module 41, and the filtered sample enters the sample storage module 42. Part of the sample is stored in the sample storage module 42, and the remaining sample continues to penetrate toward the enrichment module 43. There are latex microspheres with detection group antibodies or antigens in the enrichment module 43, which react with the sample. The sample continues to penetrate toward the detection module 44. In the detection module 44, the detection module 44 can intercept the agglutinated sample, thus being able to display the detection result. The setting of the recovery module 45 can provide a strong water absorption capacity, enabling the sample to penetrate toward the detection module 44, thereby achieving the purpose of detection. The excess sample finally enters the recovery module 45.
[0043] When the detection result of the detection device is positive, it indicates that the person being tested has relevant risks and there is no need for reexamination; for negative or invalid detection results, reexamination is required. During reexamination, the detection device is broken along the second notch 13 on the housing 1. Since the second notch 13 corresponds to the first notch 33 on the carrier plate 3, when the housing 1 is broken, the carrier plate 3 is also broken simultaneously (along the first notch 33), separating the retention area 31 and the discard area 32 on the carrier plate 3, and the test strip is also divided into two parts. Among them, the sample pretreatment module 41 and the sample storage module 42 are located in the retention area 31, and other modules are located in the discard area 32; thus, the entire detection device is broken into two parts, namely the first part and the second part. The first part is the first split body and the retention area 31 located in the first split body, as well as the sample processing module and the sample storage module 42 on the retention area 31. The second part is the second split body and the discard area 32 located in the second split body, as well as the enrichment module 43, the detection module 44 and the recovery module 45 on the discard area 32. The second part is discarded, leaving the first part. During reexamination, the sample can be directly obtained from the sample storage module 42 of the first part for detection, so there is no need to repeat sample collection, reducing the labor intensity of the staff. In addition, during initial sampling, only sequential sampling is required, without the need to store the two samplings separately, reducing the loss of medical equipment, reducing the detection cost, and also avoiding the difficulty of subsequent sample destruction.
[0044] The utility model innovatively adds a sample storage module 42 into the test paper, so that the test paper can store filtered samples, and this part of the sample has not passed through the enrichment module 43 and the detection module 44, so that this part of the sample can be re-tested, and at the same time, by setting the first notch 33 and the second notch 13, the detection device can be easily broken off, so that the sample storage module 42 can be stored separately, so that it is convenient to obtain samples from the sample storage module 42 during re-examination, thereby eliminating the trouble of re-obtaining samples for testing, thereby facilitating rapid screening of infectious diseases.
[0045] It should be noted that each module in the test paper is independent of each other, and two adjacent modules are just next to each other and are not connected. It is only necessary to ensure that the sample (liquid) can flow in these modules.
[0046] The sample pretreatment module 41 is made of glass cellulose membrane, cellulose membrane, polyester membrane, and Fusion5; the sample storage module 42 is made of glass cellulose membrane and cellulose membrane, the enrichment module 43 is made of glass cellulose membrane, cellulose membrane, and polyester membrane; the detection module 44 is made of nitrocellulose membrane and nylon membrane; the recovery module 45 is made of absorbent paper, polyester paper, and desiccant.
[0047] The length of the sample preprocessing module 41 is 8-20 mm, the length of the sample storage module 42 is 6-12 mm, the length of the enrichment module 43 is 8-16 mm, the length of the detection module 44 is 10-40 mm, and the length of the recovery module 45 is 10-20 mm.
[0048] The first notch 33 and the second notch 13 are perforated lines, which include a plurality of hole segments and a plurality of line segments, the hole segments and the line segments are alternately arranged, the length of the hole segment is more than three times the length of the line segment, and the length of the line segment is not greater than 2 mm.
[0049] The first notch 33 and the second notch 13 are formed in the form of perforated lines, so that the first notch 33 and the second notch 13 are relatively fragile, and can be broken along the first notch 33 and the second notch 13 when the detection device is bent.
[0050] The length of a single hole segment is more than three times the length of the line segment, and the length of the line segment is controlled within 2 mm, so that the detection device will not break under non-human conditions. When the detection device (carrier board) needs to be broken, it can be achieved by applying a certain force and ensuring that the detection device breaks along the set position.
[0051] The utility model also provides a detection device, the specific structure of which has been described in the foregoing text and will not be repeated here.
[0052] See alsoFigure 4 A first hook 17 is connected to the upper wall 14 of the first split body, and a second hook 18 is connected to the lower wall 15 of the first split body. The first hook 17 and the second hook 18 are located at one end of the first split body close to the second split body. The first hook 17 faces the lower wall 15, and the second hook 18 faces the upper wall 14. A first gap is left between the lower end of the first hook 17 and the test strip structure, and a second gap is left between the upper end of the second hook 18 and the test strip structure.
[0053] In actual application, when the test result is negative or invalid, the test device can be directly broken off, leaving the first part. At this time, the side of the first split body close to the sample storage module 42 is an open structure, so that the sample in the sample storage module 42 has a risk of volatilization.
[0054] The material of the housing 1 is plastic, so that the housing 1 can be deformed under the action of an external force. Therefore, the upper wall 14 and the lower wall 15 can be pinched, so that the first hook 17 and the second hook 18 are engaged with each other, so that the open structure is basically closed, thereby reducing the volatilization of the sample and ensuring the effect of re-examination.
[0055] The housing 1 includes an upper wall 14 and a lower wall 15 which are arranged opposite to each other up and down. The collection port 11 and the observation window 12 are formed on the upper wall 14. A circular guide wall 16 extends from the side of the collection port 11 facing the lower wall 15, and the guide wall 16 extends into the sample pool 2.
[0056] The arrangement of the circular guide wall 16 facilitates guiding the sample into the sample pool 2.
[0057] The number of the collection ports 11 is one, and the number of the observation windows 12 is two. The collection port 11 is located at the middle position of the housing 1. In the length direction, the two observation windows 12 are located on both sides of the collection port 11.
[0058] The number of the test strip structures is two. The two test strip structures are respectively located on both sides of the collection port 11. The number of the test strips is two, and the two test strips are respectively arranged on the two carrier plates 3.
[0059] The number of the second score lines 13 on the housing 1 is two, which correspond to the first score lines 33 on the two carrier plates 3 respectively. The part of the housing 1 between the two second score lines 13 is the first split body, and the part outside the second score lines 13 is the second split body.
[0060] The two test strips have different detection targets. For example, one test strip is used to detect Mycoplasma pneumoniae, and the other test strip is used to detect Chlamydia pneumoniae, so that only one injection of the sample is required to achieve two different types of detections.
[0061] Moreover, when it is found that one of the detection results is negative or invalid, the detection device can be broken along the two second notches 13 respectively, so that the detection device is divided into three parts, and the middle part (the first part) is left for subsequent re-inspection. At this time, there are two sample storage modules 42 in the first part, and samples are stored in both of these two sample storage modules 42, so as to ensure that a sufficient amount of samples can be provided for re-inspection during subsequent re-inspection and ensure the validity of the re-inspection results.
[0062] It should be understood that the above embodiments are merely exemplary and not restrictive. Without departing from the basic principles of the present invention, various obvious or equivalent modifications or substitutions that those skilled in the art can make to the above details will be included within the scope of the claims of the present invention.
Claims
1. A test paper structure, characterized in that: It comprises a test paper and a carrier plate, wherein the carrier plate is a plate-shaped structure, the test paper is laid on the carrier plate, and in the thickness direction of the carrier plate, the test paper and the carrier plate overlap each other; The test paper comprises a sample pretreatment module, a sample storage module, an enrichment module, a detection module and a recovery module connected in sequence; The carrier is provided with a first notch, which divides the carrier into a reserved area and a discarded area, wherein the sample preprocessing module and the sample storage module are located in the reserved area, and the enrichment module, the detection module and the recovery module are located in the discarded area.
2. The test paper structure according to claim 1, characterized in that: The sample storage module is made of glass cellulose membrane and cellulose membrane.
3. The test paper structure according to claim 1, characterized in that: The length of the sample preprocessing module is 8-20 mm, the length of the sample storage module is 6-12 mm, the length of the enrichment module is 8-16 mm, the length of the detection module is 10-40 mm, and the length of the recovery module is 10-20 mm.
4. The test paper structure according to any one of claims 1 to 3, characterized in that: The first notch is a perforated line, which includes a plurality of hole segments and a plurality of line segments, the hole segments and the line segments are alternately arranged, the length of the hole segment is more than three times the length of the line segment, and the length of the line segment is not greater than 2 mm.
5. A detection device, characterized in that: The invention comprises a shell, a sample pool and the test paper structure according to any one of claims 1 to 4, wherein the shell is provided with a collection port and an observation window, the sample pool is located in the shell, the collection port is communicated with the sample pool, the test paper structure is fixedly arranged in the shell, one end of the test paper structure is connected to the sample pool, the sample pretreatment module in the test paper structure is close to the sample pool, the recovery module in the test paper structure is far away from the sample pool, and the observation window at least covers the detection module; The retention area on the test paper structure is closer to the sample pool than the discarding area on the test paper structure; The shell is provided with a second notch, and in the length direction of the shell, the second notch divides the shell into a first sub-body and a second sub-body, the first notch and the second notch are located at the same position, the reserved area is located in the first sub-body, and the discarded area is located in the second sub-body.
6. The detection device according to claim 5, characterized in that: A first hook is connected to the upper wall of the first split body, and a second hook is connected to the lower wall of the first split body. The first hook and the second hook are located at one end of the first split body close to the second split body, the first hook faces the lower wall, and the second hook faces the upper wall. A first gap is left between the lower end of the first hook and the test paper structure, and a second gap is left between the upper end of the second hook and the test paper structure.
7. The detection device according to claim 5, characterized in that: The second notch is a perforated line, which includes a plurality of hole segments and a plurality of line segments, the hole segments and the line segments are alternately arranged, the length of the hole segment is more than three times the length of the line segment, and the length of the line segment is not greater than 2 mm.
8. The detection device according to claim 5, characterized in that: The shell comprises an upper wall and a lower wall which are arranged opposite to each other. The upper wall is formed with the collection port and the observation window. The collection port is provided with an annular guide wall extending toward one side of the lower wall, and the guide wall extends into the sample pool.
9. The detection device according to any one of claims 5 to 8, characterized in that: The number of the collection port is one, the number of the observation windows is two, the collection port is located in the middle of the shell, and the two observation windows are located on both sides of the collection port in the length direction; The number of the test paper structures is two, and the two test paper structures are respectively located on both sides of the collection port; There are two second notches on the shell, which correspond to the first notches on the two carriers respectively. The part of the shell between the two second notches is the first split body, and the part outside the second notches is the second split body.