A new urine test paper and a test paper storage device used in cooperation

By using a hydrophilic nylon membrane and porous adhesive paper layer structure, combined with laser-engraved comb grooves to separate the detection area and a test strip storage device, the problems of inconvenient data calibration and crosstalk between multiple indicators in urine test strips are solved, achieving convenient calibration and improved hydrophilicity.

CN224529432UActive Publication Date: 2026-07-21谢昕桐
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
谢昕桐
Filing Date
2025-09-04
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing urine test strips are inconvenient for data verification after testing, have poor hydrophilicity, and suffer from severe crosstalk between multiple indicators.

Method used

It adopts a hydrophilic nylon membrane and porous adhesive paper layer structure, combined with laser-engraved comb grooves to separate the detection area, and is equipped with a test strip storage device to slide and isolate components, so as to realize data calibration and prevent crosstalk.

Benefits of technology

It facilitates the calibration and recording of test data, improves the hydrophilicity of urine test strips, prevents contamination, and avoids crosstalk between multiple indicators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel urine test paper and the test paper storage device of cooperation and use, including hydrophilic nylon film, the bottom fixed connection of hydrophilic nylon film has porous rubber paper layer, the bottom fixed connection of porous rubber paper layer has reagent area, the bottom fixed connection of reagent area has porous colloid layer, the bottom fixed connection of porous colloid layer has transparent nylon film. The utility model reagent area is separated through laser engraving comb tooth groove, and its width is 0.2mm, and is separated as 14 detection areas, prevents horizontal diffusion, and the cooperation hole colloid layer is arrayed distribution in microcolumn, realizes 14 coplanar detection, avoids multi -index crosstalk problem, hydrophilic nylon film is handled through plasma activation and PVP coating, improves its hydrophilicity and hydrophilic durability, is equipped with the transparent plate between the sliding sleeve on the arc slide rail, and the transparent plate is connected with elastic clamping strip, can fix urine test paper after the detection end, and then remove its and compare with the proofreading card, and personnel's proofreading and record to each detection data are convenient.
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Description

Technical Field

[0001] This utility model relates to the field of urine test strip technology, specifically a novel urine test strip and a test strip preservation device used in conjunction with it. Background Technology

[0002] Urine analysis test strips are test strips used to test for bilirubin, urobilinogen, ketones, ascorbic acid, glucose, protein (albumin), blood cells, pH, etc. in urine.

[0003] In response to this, a utility model patent with authorization announcement number CN214567022U discloses a urine test strip box, comprising: a urine test strip box body (1) with a sampling port (11), and one or more urine test strip sets (2) housed within the urine test strip box body (1). The urine test strip set (2) includes a urine test strip (21) and a urine test strip tray (22) supporting the urine test strip (21). This utility model protects the urine test strips by setting the urine test strip tray and urine test strips together to form a urine test strip set, thereby preventing the urine test strips from being contaminated during the testing process. At the same time, the urine test strip tray increases the weight of the urine test strip set, making the placement of the urine test strips in the urine test strip box more reliable. Finally, an elastic element is added to press the urine test strip set together, making the placement of the urine test strips more reliable.

[0004] However, the urine test kit in the aforementioned patent still has some problems: the current urine test kits are not convenient for calibrating various test data after the test is completed, and the existing urine test kits have problems such as poor hydrophilicity and serious crosstalk between multiple indicators. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a novel urine test strip and a corresponding test strip preservation device, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, this utility model proposes a novel urine test strip and a test strip storage device for use with it, including a hydrophilic nylon membrane, a porous adhesive paper layer fixedly connected to the bottom of the hydrophilic nylon membrane, a reagent area fixedly connected to the bottom of the porous adhesive paper layer, a porous gel layer fixedly connected to the bottom of the reagent area, and a transparent nylon membrane fixedly connected to the bottom of the porous gel layer.

[0007] As a preferred embodiment of this utility model, the porous adhesive paper layer is a cellulose-gelatin porous adhesive paper with a porosity of 80%. The reagent area is divided into a detection area by laser-engraved comb grooves with a width of 0.2 mm. The porous adhesive layer is an agar-PVA adhesive distributed in a micro-column array.

[0008] As a preferred embodiment of this invention, the hydrophilic nylon membrane is treated with plasma activation and PVP coating, and the thickness of the transparent nylon membrane is 0.1 mm with a light transmittance of 92%.

[0009] A test strip storage device for storing the aforementioned novel urine test strip includes a bottle body. Fixed blocks are fixedly provided at the top and bottom of both ends of the bottle body. An arc-shaped slide rail is fixedly provided between two opposing fixed blocks. A sliding sleeve is slidably connected to the outer wall of each arc-shaped slide rail. A transparent plate is fixedly provided between two sliding sleeves. Elastic clips are fixedly provided at both ends of one side of the transparent plate.

[0010] As a preferred technical solution of this utility model, a connecting block is fixedly provided at the bottom of one side of the transparent plate, and an isolation component is fixedly provided at the top of the connecting block. The isolation component is composed of multiple overlapping transparent membranes. Each transparent membrane has a tear-off ear fixedly provided on one side, and a break-point cut is provided between each transparent membrane and the connecting block.

[0011] As a preferred embodiment of this utility model, a calibration card is fixedly provided in the middle of the outer wall of the bottle, and the surface of the bottle is covered with a plastic film sleeve. The top of the bottle is fixedly connected to the bottle mouth, and the outer wall of the bottle mouth is threadedly connected to the bottle cap. The top of the bottle cap is provided with a snap-fit ​​circular groove, and the inner wall of the snap-fit ​​circular groove is provided with a limit removal hole.

[0012] As a preferred embodiment of this utility model, a plastic strip is fixedly provided on one side of the bottle cap, a buckle is fixedly provided at the top of the plastic strip, and a protrusion is fixedly provided at the top of the buckle.

[0013] Compared with the prior art, this utility model provides a novel urine test strip and a test strip storage device for use with it, which has the following beneficial effects:

[0014] 1. This novel urine test strip and its accompanying test strip storage device feature an arc-shaped slide rail on the connecting block with a sliding sleeve. A transparent plate is positioned between the sliding sleeves, and an elastic clip is connected to the transparent plate. An isolation component on the connecting block is connected to a tear-off ear. After testing, the urine test strip can be fixed in place and then moved to compare with a calibration card, facilitating the calibration and recording of various test data. The isolation component consists of a transparent diaphragm connected to the tear-off ear, which isolates the test strip. After testing, the transparent diaphragm can be removed to prevent contamination of the bottle, making it more hygienic.

[0015] 2. This novel urine test strip and its accompanying test strip storage device feature a limiting retrieval hole within a snap-fit ​​groove in the bottle cap. A plastic strip connected to the bottle cap restricts the test strips inside the bottle, allowing only one strip to be dispensed at a time, preventing contamination from opening the cap directly. The reagent area is divided into 14 detection zones by laser-engraved comb grooves, each 0.2mm wide, preventing lateral diffusion. The pore gel layer is arranged in a micro-column array, enabling 14 coplanar detections and avoiding crosstalk issues. The hydrophilic nylon membrane undergoes plasma activation and PVP coating treatment to enhance its hydrophilicity and durability. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model is located in Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the connection structure between the bottle body and the bottle cap of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of the bottle body of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the urine test strip of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the urine test strip of this utility model;

[0023] Figure 7 This is a schematic diagram of the sampling process of the urine test strip of this utility model.

[0024] In the diagram: 1. Bottle body; 2. Calibration card; 3. Plastic film sleeve; 4. Bottle mouth; 5. Urine test strip; 501. Hydrophilic nylon membrane; 502. Porous adhesive tape layer; 503. Reagent area; 504. Porous adhesive layer; 505. Transparent nylon membrane; 6. Bottle cap; 7. Limiting and picking hole; 8. Cap snap-on; 9. Fixing block; 10. Arc-shaped slide rail; 11. Sliding sleeve; 12. Transparent plate; 13. Elastic clip; 14. Connecting block; 15. Isolation component; 16. Tear-off ear. Detailed Implementation

[0025] The technology of the present invention will now be described with reference to the accompanying drawings of the embodiments thereof.

[0026] The solution is described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] like Figures 1-6 As shown, this utility model provides a novel urine test strip and a corresponding test strip storage device, including a hydrophilic nylon membrane 501. A porous adhesive paper layer 502 is fixedly connected to the bottom of the hydrophilic nylon membrane 501. A reagent area 503 is fixedly connected to the bottom of the porous adhesive paper layer 502. A porous gel layer 504 is fixedly connected to the bottom of the reagent area 503. A transparent nylon membrane 505 is fixedly connected to the bottom of the porous gel layer 504. The porous adhesive paper layer 502 is a cellulose-gelatin porous adhesive paper with a porosity of 80%. The reagent area 503 is divided into 14 detection zones by laser-engraved comb grooves, each 0.2 mm wide, to prevent lateral diffusion. The comb grooves can be replaced with honeycomb-shaped isolation chambers, each 0.25 mm wide. However, the yield decreased by 8%. The porous gel layer 504 is an agar-PVA gel with a micro-pillar array distribution. The hydrophilic nylon membrane 501 is treated with plasma activation and PVP coating. Plasma activation involves bombarding the nylon membrane surface with oxygen plasma to generate -OH and -COOH hydrophilic groups. The PVP coating is applied using a polyvinylpyrrolidone (K30) aqueous solution at a concentration of 6wt% using gravure coating with a wet thickness of 5μm. It is then cured with hot air at 80℃ for 2 minutes to fill micro-defects on the surface and improve hydrophilic durability. PVP can be replaced with PEG-400 at a concentration of 8wt%, but the hydrophilic durability will decrease. The transparent nylon membrane 505 has a thickness of 0.1mm and a light transmittance of 92%.

[0028] The preparation method of this novel urine test strip is as follows:

[0029] S1. Plasma activation: Using a roll-to-roll plasma generator, oxygen plasma is used to bombard the surface of the nylon film to generate -OH and -COOH hydrophilic groups, wherein O2 15 sccm + Ar 5 sccm, and the velocity is 3 m / min.

[0030] S2, PVP coating: The nylon film surface was coated with a 6wt% PVP K30 aqueous solution by gravure coating, with a wet thickness of 5μm, followed by hot air curing at 80℃ for 2min.

[0031] S3. Lamination and processing: Layer 1+2 is hot-pressed and laminated under the following conditions: 110℃, 0.3MPa. Then, comb grooves are laser-engraved on it with a width of 0.2mm. The reagent in Zone 14 is then screen-printed again.

[0032] A test strip storage device for storing the aforementioned novel urine test strips includes a bottle body 1. Fixing blocks 9 are fixedly provided at the top and bottom of both ends of the bottle body 1. An arc-shaped slide rail 10 is fixedly provided between two opposing fixing blocks 9. A sliding sleeve 11 is slidably connected to the outer wall of each arc-shaped slide rail 10. A transparent plate 12 is fixedly provided between two sliding sleeves 11. Elastic clips 13 are fixedly provided at both ends of one side of the transparent plate 12. A connecting block 14 is fixedly provided at the bottom of one side of the transparent plate 12. An isolation component 15 is fixedly provided at the top of the connecting block 14. The isolation component 15 consists of multiple transparent partitions. The membranes are stacked and assembled. Each transparent membrane has a tear-off lug 16 fixed on one side. Each transparent membrane and the connecting block 14 have a break-point cut. A calibration card 2 is fixed in the middle of the outer wall of the bottle body 1. The surface of the bottle body 1 is covered with a plastic film sleeve 3. The top of the bottle body 1 is fixedly connected to the bottle mouth 4. The outer wall of the bottle mouth 4 is threadedly connected to the bottle cap 6. The top of the bottle cap 6 has a snap-fit ​​groove. The inner wall of the snap-fit ​​groove has a limit removal hole 7. A plastic strip is fixed on one side of the bottle cap 6. A buckle 8 is fixed on the top of the plastic strip. A protrusion is fixed on the top of the buckle 8.

[0033] Working principle: When in use, open the cap 8, tilt the bottle 1, and let the single urine test strip 5 pass through the limiting pick-up hole 7. After the urine test strip is placed in the urine for testing, insert it from above into the isolation component 15 and clamp it by the two elastic clips 13. Then, the transparent plate 12 can be moved and the sliding sleeve 11 slides on the arc-shaped slide rail 10 to move the urine test strip 5 to the calibration card 2. Each data can then be calibrated and recorded. After calibration, remove the urine test strip 5 and tear off the used transparent diaphragm through the tear-off ear 16.

[0034] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel urine test strip, characterized in that: The device includes a hydrophilic nylon membrane (501), a porous adhesive tape layer (502) is fixedly connected to the bottom of the hydrophilic nylon membrane (501), a reagent area (503) is fixedly connected to the bottom of the porous adhesive tape layer (502), a porous gel layer (504) is fixedly connected to the bottom of the reagent area (503), and a transparent nylon membrane (505) is fixedly connected to the bottom of the porous gel layer (504).

2. The novel urine test strip according to claim 1, characterized in that: The porous adhesive paper layer (502) is a cellulose-gelatin porous adhesive paper with a porosity of 80%.

3. The novel urine test strip according to claim 1, characterized in that: The reagent area (503) is divided into 14 detection areas by laser-engraved comb grooves, the width of which is 0.2 mm.

4. The novel urine test strip according to claim 1, characterized in that: The reagent area (503) is laser-engraved into a honeycomb shape with a groove width of 0.25 mm.

5. A novel urine test strip according to claim 1, characterized in that: The porous gel layer (504) is an agar-PVA gel, which is distributed in a microcolumn array.

6. The novel urine test strip according to claim 1, characterized in that: The hydrophilic nylon membrane (501) is coated with PVP or PEG-400 after plasma activation, and the transparent nylon membrane (505) has a thickness of 0.1 mm and a light transmittance of 92%.

7. A test strip storage device for use with the novel urine test strip according to any one of claims 1-6, characterized in that: The device includes a bottle (1) for storing a new type of urine test strip. Fixing blocks (9) are fixed at the top and bottom of both ends of the bottle (1). An arc-shaped slide rail (10) is fixed between two opposing fixing blocks (9). A sliding sleeve (11) is slidably connected to the outer wall of each arc-shaped slide rail (10). A transparent plate (12) is fixed between two sliding sleeves (11). An elastic clip (13) is fixed at both ends of one side of the transparent plate (12).

8. The test strip preservation device according to claim 7, characterized in that: A connecting block (14) is fixedly provided at the bottom of one side of the transparent plate (12), and an isolation component (15) is fixedly provided at the top of the connecting block (14). The isolation component (15) is composed of multiple overlapping transparent membranes. Each transparent membrane has a tear-off ear (16) fixedly provided on one side, and a break-point cut is provided between each transparent membrane and the connecting block (14).

9. A test strip preservation device according to claim 7, characterized in that: A calibration card (2) is fixedly provided in the middle of the outer wall of the bottle body (1), and the surface of the bottle body (1) is covered with a plastic film sleeve (3). The top of the bottle body (1) is fixedly connected to the bottle mouth (4). The outer wall of the bottle mouth (4) is threadedly connected to the bottle cap (6). The top of the bottle cap (6) is provided with a snap-fit ​​groove, and the inner wall of the snap-fit ​​groove is provided with a limit removal hole (7).

10. A test strip preservation device according to claim 9, characterized in that: A plastic strip is fixedly provided on one side of the bottle cap (6), and a buckle (8) is fixedly provided at the top of the plastic strip. A protrusion is fixedly provided at the top of the buckle (8).