A colloidal gold test strip detection device
By designing protective and drying components on the colloidal gold reader, the problem of environmental influence on the test strips during the testing process was solved, thus achieving the stability of the test strips and the accuracy of the test results, and improving the testing efficiency.
Patent Information
- Application Number
- CN202521657864.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-08-05
AI Technical Summary
When colloidal gold test strips are tested in batches using a colloidal gold reader, the test strips are exposed to the laboratory environment, which causes the test results to be affected by factors such as humidity, dust and light, slowing down the chromatography speed and affecting the detection efficiency and accuracy.
A colloidal gold test strip detection device was designed, comprising a protective component and a drying component. The protective component forms a closed space through a temporary storage box and a sealing cover. The drying component uses a drying plate to keep the environment dry and prevent the test strip from getting damp. A clamping structure fixes the test strip to prevent shaking.
It effectively reduces the impact of external environmental factors on the test strips, improves the accuracy and reliability of test results, ensures the stability and dryness of the test strips during the testing process, and improves testing efficiency.
Smart Images
Figure CN224278125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of colloidal gold test strip testing equipment, and in particular to a colloidal gold test strip testing equipment. Background Technology
[0002] The colloidal gold test strip detection device is a specialized instrument based on colloidal gold immunochromatography technology, used to analyze the detection process and results of colloidal gold test strips. It achieves qualitative, semi-quantitative, or quantitative detection of target substances in samples by reading and processing the colorimetric reaction on the test strip.
[0003] Currently, when using a colloidal gold reader to perform batch testing of colloidal gold test strips, the test strips are usually directly exposed to the laboratory environment. The chromatography time for testing one sample is about ten minutes, but the colloidal gold reader can only test one sample at a time, which greatly prolongs the testing time. However, factors such as humidity, dust, and light in the laboratory environment can affect the test results of the test strips. For example, prolonged exposure in a high-humidity environment can cause the test strips to become damp, affecting their detection performance. This is because the NC membrane of the test strip absorbs moisture from the air, causing abnormal chromatography speed, slowing down the chromatography process, and affecting detection efficiency. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a colloidal gold test strip detection device.
[0005] This utility model is achieved using the following technical solution: a colloidal gold test strip detection device, including a colloidal gold reader, a protective component on one side of the colloidal gold reader for protecting a batch of test strips to be tested, a drying component inside the protective component for drying the protective space, the protective component including a temporary storage box fixedly installed on one side of the colloidal gold reader, a placement plate inside the temporary storage box for temporarily storing a batch of test strips, multiple placement slots arranged in an array on both sides of the placement plate, a sealing cover on the top of the temporary storage box, and the top of the placement plate and the bottom of the sealing cover fixedly installed.
[0006] With the above technical solution, when testing a batch of test strips, the test strips can be placed in the placement slot, and the temporary storage box can be sealed with a sealing cover to form a relatively closed protective space, reducing the influence of external environmental factors on the test strips. At the same time, the drying component can dry the protective space, further ensuring that the storage environment of the test strips is dry and improving the accuracy of the test results.
[0007] As a further improvement to the above solution, the bottom of the placement plate is provided with multiple spring holes, a first limiting piece is fixedly installed at the opening of each spring hole, a limiting rod is provided inside each spring hole, a second limiting piece is fixedly installed at the top of each limiting rod, and the other end of each limiting rod passes downward through the first limiting piece and is fixedly installed with the inner wall of the temporary storage box.
[0008] Through the above technical solution, the setting of the limiting rod and the first and second limiting plates allows the placement plate to move up and down inside the temporary storage box along with the sealing cover.
[0009] As a further improvement to the above solution, each of the limiting rods is fitted with a first spring, and the two ends of each first spring abut against the first limiting piece and the second limiting piece, respectively.
[0010] Through the above technical solution, the first spring can make the placement plate have a certain elasticity when moving up and down, so that the placement plate can automatically descend into the interior of the temporary storage box and keep the sealing cover sealed.
[0011] As a further improvement to the above solution, a fixing post is rotatably mounted on the top of the sealing cover, and a pull ring is rotatably mounted on the fixing post.
[0012] The above technical solution allows operators to easily open and close the sealing cover, and the rotating installation of the fixing column allows the pull ring to be folded when not in use, saving space.
[0013] As a further improvement to the above solution, the drying assembly includes drying plates disposed on both sides inside the temporary storage box. Each of the two drying plates is provided with a retaining plate fixedly installed on both sides of the temporary storage box, and each retaining plate is arranged in an "L" shape.
[0014] The above technical solution allows the drying plate to dry the air inside the temporary storage box. The card plate design facilitates the installation and replacement of the drying plate. When the drying plate loses its drying effect, it can be directly removed from the card plate for replacement, making the operation convenient.
[0015] As a further improvement to the above solution, two symmetrically arranged fixing blocks are fixedly installed on the inner wall of each placement slot. Each fixing block has a clamping plate on one side, and two connecting rods are fixedly installed on one side of each clamping plate. One end of each connecting rod passes through the adjacent fixing block and is fixedly installed with a third limiting piece. A second spring is sleeved on each connecting rod, and the two ends of each second spring abut against the adjacent fixing block and the clamping plate, respectively. One side of each clamping plate is inclined.
[0016] Through the above technical solution, the clamping plate and the second spring can clamp and fix the test strip placed in the placement slot, preventing the test strip from shaking or shifting during storage and ensuring the stability of the test strip. The clamping plate is set at an angle on one side, which facilitates the insertion and removal of the test strip.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This invention, by incorporating protective and drying components, provides a dry and sealed storage environment for batches of test strips, effectively reducing the impact of external environmental factors on the test strips and improving the accuracy and reliability of test results. Simultaneously, the clamping structure within the placement slot can fix the test strips, preventing them from shaking or shifting, further ensuring the stability of the test. Furthermore, the drying plate is easily replaceable, ensuring the continuity of the drying effect. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the internal structure of the temporary storage box of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the present invention with protective components;
[0022] Figure 4 This is a cross-sectional structural diagram of the present invention, showing the placement plate.
[0023] Explanation of key symbols:
[0024] 1. Colloidal gold reader; 201. Temporary storage box; 202. Placement plate; 203. Placement slot; 204. Sealing cover; 301. Drying plate; 302. Clamping plate; 4. First limiting plate; 5. Limiting rod; 6. Second limiting plate; 7. First spring; 8. Fixing post; 9. Pull ring; 10. Fixing block; 11. Clamping plate; 12. Connecting rod; 13. Third limiting plate; 14. Second spring. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0026] Please combine Figures 1-4 This embodiment of a colloidal gold test strip detection device includes a colloidal gold reader 1, which performs detection as follows:
[0027] I. Testing Process
[0028] 1. Preparation before testing
[0029] Sample processing: Collect samples (such as blood, urine, etc.) according to the requirements of the test items, and perform pretreatment such as centrifugation and dilution to remove impurities.
[0030] Instrument calibration: Turn on the colloidal gold reader and use standards or calibration strips to calibrate the instrument to ensure the accuracy of the optical path and detection parameters (such as wavelength and absorbance threshold).
[0031] Test strip preparation: Remove the test strip from the sealed packaging and place it on a dry, clean testing platform, avoiding touching the testing area with your fingers.
[0032] 2. Sample addition procedure
[0033] Use a pipette or pipette to draw an appropriate amount of the pretreated sample and evenly drop it onto the sample pad of the test strip. Ensure the sample volume is accurate (usually 50-100 μL) and avoid sample spillage or contamination of other areas.
[0034] 3. Reaction and Detection
[0035] After adding the sample, place the test strip into the detection slot of the reader and start the instrument. The instrument controls the reaction time according to the preset program (usually 5-15 minutes). During this time, the colloidal gold marker reacts with the target substance in the sample to form colored bands on the detection line (T line) and the control line (C line).
[0036] The reader illuminates the test strip with a light source, and the sensor reads the absorbance (OD value) or optical density signal of the T line and C line, which is then converted into an electrical signal and transmitted to the data processing system.
[0037] 4. Data Processing and Recording
[0038] The instrument's built-in software automatically calculates the ratio of the OD values of the T-line to the C-line (T / C value) based on a standard curve or algorithm, and compares it with a preset threshold to generate qualitative, semi-quantitative, or quantitative results.
[0039] The results are automatically stored in the instrument's database and can be exported to a computer or printed as a test report, including sample information, test time, result values, and reference ranges.
[0040] II. Result Judgment Criteria
[0041] 1. Qualitative detection and judgment
[0042] Positive: The T line color intensity is ≥ the preset positive threshold (e.g., T / C ≥ 0.5), and the C line shows normal color development, indicating that the target substance is present in the sample.
[0043] Negative: The T line color intensity is less than the negative threshold (e.g., T / C < 0.1), and the C line shows normal color development, indicating that there is no target substance in the sample or the concentration is below the detection limit.
[0044] Invalid: Line C does not develop color (regardless of whether line T develops color), indicating that the testing process has failed (e.g., incorrect sample addition, test strip failure), and needs to be tested again.
[0045] 2. Semi-quantitative detection and judgment
[0046] Based on the concentration range of the T / C value (such as the instrument's preset low, medium, and high concentration ranges), determine the approximate concentration range of the target substance in the sample (such as "weak positive", "medium positive", "strong positive").
[0047] 3. Quantitative detection and judgment
[0048] The instrument uses a standard curve (established from standards of known concentrations) to convert the T / C value into the specific concentration of the target substance (e.g., ng / mL). The result is displayed directly with a reference range indicated (e.g., <5 ng / mL is normal, ≥5 ng / mL is abnormal).
[0049] The colloidal gold reader (1) is provided with a protective component on one side that can protect a batch of test strips to be inspected, and the protective component is provided with a drying component that can dry the protective space.
[0050] The protective component includes a temporary storage box 201 fixedly installed on one side of the colloidal gold reader 1. The interior of the temporary storage box 201 is provided with a placement plate 202 for temporarily storing and placing a batch of test strips. Multiple placement slots 203 arranged in an array are provided on both sides of the placement plate 202. A sealing cover 204 is provided on the top of the temporary storage box 201. The top of the placement plate 202 and the bottom of the sealing cover 204 are fixedly installed.
[0051] When testing a batch of test strips, the test strips can be placed in the placement slot 203 and the temporary storage box 201 can be sealed by the sealing cover 204 to form a relatively closed protective space, reducing the influence of external environmental factors on the test strips. At the same time, the drying component can dry the protective space, further ensuring that the storage environment of the test strips is dry and improving the accuracy of the test results.
[0052] The bottom of the placement plate 202 has multiple spring holes. A first limiting piece 4 is fixedly installed at the opening of each spring hole. A limiting rod 5 is provided inside each spring hole. A second limiting piece 6 is fixedly installed at the top of each limiting rod 5. The other end of each limiting rod 5 passes downward through the first limiting piece 4 and is fixedly installed on the inner wall of the temporary storage box 201. The setting of the limiting rod 5, the first limiting piece 4, and the second limiting piece 6 allows the placement plate 202 to move up and down inside the temporary storage box 201 along with the sealing cover 204. A first spring 7 is sleeved on each limiting rod 5. The two ends of each first spring 7 abut against the first limiting piece 4 and the second limiting piece 6, respectively. The setting of the first spring 7 allows the placement plate 202 to have a certain elasticity when moving up and down, so that the placement plate 202 can automatically descend into the interior of the temporary storage box 201, keeping the sealing cover 204 in a sealed state.
[0053] A fixing post 8 is rotatably mounted on the top of the sealing cover 204, and a pull ring 9 is rotatably mounted on the fixing post 8.
[0054] The pull ring 9 is designed to facilitate the opening and closing of the sealing cover 204 by the operator, and the rotating installation of the fixing post 8 allows the pull ring 9 to be folded when not in use, saving space.
[0055] The drying assembly includes drying plates 301 disposed on both sides inside the temporary storage box 201. The drying plates 301 can be made of materials that can absorb ambient humidity, such as calcium chloride desiccant plates. Both sides of the two drying plates 301 are provided with clips 302 that are fixedly installed to the inner wall of the temporary storage box 201. Each clip 302 is arranged in an "L" shape.
[0056] The drying plate 301 can dry the air inside the temporary storage box 201. The setting of the card plate 302 can facilitate the installation and replacement of the drying plate 301. When the drying plate 301 loses its drying effect, it can be directly removed from the card plate 302 for replacement, which is convenient to operate.
[0057] Two symmetrically arranged fixing blocks 10 are fixedly installed on the inner wall of each placement slot 203. Each fixing block 10 has a clamping plate 11 on one side. Each clamping plate 11 has two connecting rods 12 fixedly installed on one side. One end of each connecting rod 12 passes through the adjacent fixing block 10 and is fixedly installed with a third limiting piece 13. Each connecting rod 12 is fitted with a second spring 14. The two ends of each second spring 14 abut against the adjacent fixing block 10 and the clamping plate 11 respectively. One side of each clamping plate 11 is inclined.
[0058] The clamping plate 11 and the second spring 14 are designed to clamp and fix the test strip placed in the placement slot 203, preventing the test strip from shaking or shifting during storage and ensuring the stability of the test strip. The clamping plate 11 is inclined on one side to facilitate the insertion and removal of the test strip.
[0059] The implementation principle of the colloidal gold test strip detection device in this application embodiment is as follows: When it is necessary to store a batch of test strips to be tested, pull the pull ring 9, and open the sealing cover 204 through the fixing column 8. When the sealing cover 204 is lifted, the placement plate 202 will also move upward. At this time, the limiting rod 5 will limit the upward movement of the placement plate 202. Since the first limiting piece 4 is fixedly installed with the placement plate 202, when the placement plate 202 rises, it will slide on the limiting rod 5 and cooperate with the second limiting piece 6 to squeeze the first spring 7. Then, the test strips are placed into the placement slot 203 respectively.
[0060] During the insertion of the test strip, the test strip will squeeze the clamping plate 11, causing the clamping plate 11 to move within the fixing block 10 via the connecting rod 12, compressing the second spring 14. After the test strip is inserted, the second spring 14 returns to its original position, causing the clamping plate 11 to clamp and fix the test strip.
[0061] Since the two clamping plates 11 in each placement slot 203 are set at an angle on one side, it is convenient to put in and take out the test strips.
[0062] After inserting the test strip, release your hand. The first spring 7 unfolds and presses down the first limiting piece 4, causing the placement plate 202 to descend, along with the sealing cover 204. The sealing cover 204 covers the temporary storage box 201, and with the downward pressure, the sealing cover 204 maintains a sealing effect with the temporary storage box 201. Through the cooperation of the sealing cover 204 and the temporary storage box 201, a sealed protective space is formed.
[0063] The drying plates 301 on both sides inside the temporary storage box 201 can dry the air in the protected space, maintain a dry environment, and prevent the test strips from getting damp.
[0064] The drying plate 301 is installed in the temporary storage box 201 via the card plate 302. When the drying plate 301 loses its drying effect, it can be directly removed from the card plate 302 for replacement, which is convenient.
[0065] When it is necessary to use the test strip for testing, open the sealing cover 204, take out the test strip from the placement slot 203, and put it into the colloidal gold reader 1 for testing.
[0066] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A colloidal gold test strip detection device, comprising a colloidal gold reader (1), characterized in that, The colloidal gold reader (1) has a protective component on one side that can protect a batch of test strips to be tested. The protective component has a drying component inside that can dry the protective space. The protective component includes a temporary storage box (201) fixedly installed on one side of the colloidal gold reader (1). The temporary storage box (201) has a placement plate (202) inside that can temporarily store and place a batch of test strips. The placement plate (202) has multiple placement slots (203) arranged in an array on both sides. The temporary storage box (201) has a sealing cover (204) on the top. The top of the placement plate (202) and the bottom of the sealing cover (204) are fixedly installed.
2. The colloidal gold test strip detection device as described in claim 1, characterized in that, The bottom of the placement plate (202) is provided with multiple spring holes. A first limiting piece (4) is fixedly installed at the opening of each spring hole. A limiting rod (5) is provided inside each spring hole. A second limiting piece (6) is fixedly installed at the top of each limiting rod (5). The other end of each limiting rod (5) passes downward through the first limiting piece (4) and is fixedly installed with the inner wall of the temporary storage box (201).
3. The colloidal gold test strip detection device as described in claim 2, characterized in that, Each of the limiting rods (5) is fitted with a first spring (7), and the two ends of each first spring (7) abut against the first limiting piece (4) and the second limiting piece (6) respectively.
4. The colloidal gold test strip detection device as described in claim 1, characterized in that, A fixing post (8) is rotatably mounted on the top of the sealing cover (204), and a pull ring (9) is rotatably mounted on the fixing post (8).
5. The colloidal gold test strip detection device as described in claim 1, characterized in that, The drying assembly includes drying plates (301) disposed on both sides inside the temporary storage box (201). Each of the two drying plates (301) is provided with a card plate (302) fixedly installed on the inner wall of the temporary storage box (201) on both sides. Each card plate (302) is arranged in an "L" shape.
6. The colloidal gold test strip detection device as described in claim 1, characterized in that, Two symmetrically arranged fixing blocks (10) are fixedly installed on the inner wall of each placement slot (203). Each fixing block (10) has a clamping plate (11) on one side. Each clamping plate (11) has two connecting rods (12) fixedly installed on one side. One end of each connecting rod (12) passes through the adjacent fixing block (10) and is fixedly installed with a third limiting piece (13). Each connecting rod (12) is fitted with a second spring (14). The two ends of each second spring (14) abut against the adjacent fixing block (10) and the clamping plate (11) respectively. One side of each clamping plate (11) is inclined.