A tearable segmented combination reagent paper
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU FORMULA TECH CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-07
AI Technical Summary
[0002]组合式试剂纸作为一种便捷的检测工具,通常由基底和多个反应区域构成,通过反应区域与样本的化学反应实现检测目的,常用于医学检测、化学分析等领域,现有技术中的组合式试剂纸通常利用易撕线或压痕线实现分段,虽具备使用便利性,但这些连接处的结构较为薄弱,当人员同时操作多个试剂段进行样本取样检测或转移时,因手持施力点偏移、操作空间受限或意外触碰,极易导致试剂纸在相邻段连接薄弱处发生非预期的弯折或翻折,致使不同试剂区相互接触,引发严重的样本间交叉污染,同时相邻试剂区之间缺乏有效的物理隔离,样本液极易发生侧漏,进一步加剧了样本交叉污染的风险并可能造成检测台面等工作环境的污染,对检测的准确性和安全性造成不利影响,因此亟需一种可撕拉分段的组合式试剂纸
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Figure CN224609125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing tool technology, specifically to a tearable and segmentable combination reagent paper. Background Technology
[0002] As a convenient testing tool, modular reagent paper typically consists of a substrate and multiple reaction zones. It achieves detection through chemical reactions between the reaction zones and the sample, and is commonly used in medical testing and chemical analysis. Existing modular reagent paper often uses tear lines or indentation lines to create segments. While convenient, these connections are structurally weak. When personnel simultaneously operate multiple reagent segments for sample collection, testing, or transfer, misalignment of the hand grip, limited operating space, or accidental contact can easily cause unexpected bending or folding at weak points between adjacent segments. This leads to contact between different reagent zones, causing serious cross-contamination. Furthermore, the lack of effective physical isolation between adjacent reagent zones makes sample leakage highly likely, further exacerbating the risk of cross-contamination and potentially contaminating the testing surface and other working environments, adversely affecting the accuracy and safety of the test. Therefore, there is an urgent need for a tearable, segmentable modular reagent paper. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed tearable and segmented modular reagent paper to solve the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a reagent paper body, which is composed of a substrate and several reaction papers, with the several reaction papers equidistantly disposed on the upper part of the substrate; It also includes: Leak-proof protrusions, there are several of them, respectively set on the front and back sides of several reaction papers, and the leak-proof protrusions are fixedly set on the upper part of the base, and easy-tear lines are provided on the base between adjacent reaction papers; The isolation strips are of several kinds, respectively located on the left and right sides of several reaction papers, and the isolation strips are fixedly set on the upper part of the base. The base is provided with a tear corner at the rear side of the tear line, and the tear corner is set with a "V" shaped structure. The anti-slip grooves are a plurality of such grooves, which are respectively located on the rear side of the upper and lower side walls of the base. The base is provided with an anti-flip grip mechanism that cooperates with the anti-slip grooves.
[0005] Furthermore, the anti-flip grip mechanism includes: A torsion spring clip is clamped and abuts against the base. Four sliding grooves are provided on the opposite side walls of the upper and lower clamping plates of the torsion spring clip. A slider is slidably arranged in the sliding groove. An abutting strip is fixedly arranged on the slider and abuts against the anti-slip groove. The connecting plates consist of four plates, which are respectively suspended on the left and right sides of the two clamping plates. The connecting plates are fixedly mounted on the two corresponding front and rear abutment strips.
[0006] Furthermore, a crossbar is movably inserted into the groove, one end of which passes through a torsion spring clip and is fixedly connected to the connecting plate, while the other end of the crossbar is fixedly connected to the slider.
[0007] Furthermore, several color matching cards are fixedly installed on the upper part of the base, and the color matching cards are located on the rear side of the leak-proof protrusion.
[0008] Furthermore, a protective film is suspended above the reaction paper, and the protective film is adhered and fixed to the upper part of the leak-proof protrusion and the isolation protrusion.
[0009] Furthermore, the protective film is provided with a corner, and the corner is located at the rear side of the rear leak-proof protrusion.
[0010] Compared with the prior art, the beneficial effects of this utility model are: the tearable and segmented combination reagent paper of this utility model can not only physically isolate the outside of the reagent area, completely separate each reaction area and avoid side leakage of sample liquid, but also reduce the possibility of unexpected bending or folding at weak points such as the tear line on the reagent paper during use, ensuring the smoothness of multi-segment synchronous operation and the accuracy of test results. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 yes Figure 1 Enlarged view of part A in the image.
[0013] Figure 3 This is an exploded view of the components of this utility model, including the substrate, reaction paper, leak-proof raised strip, isolation raised strip, colorimetric card, and protective film.
[0014] Figure 4 This is an exploded view of the anti-tipping grip mechanism and crossbar in this utility model.
[0015] Explanation of reference numerals in the attached figures: 1. Reagent paper body, 1-1. Base, 1-2. Reaction paper, 2. Leak-proof raised strip, 3. Easy-tear line, 4. Isolation raised strip, 5. Easy-tear corner, 6. Anti-slip groove, 7. Anti-folding grip mechanism, 7. Torsion spring clip, 7-1. Clamping plate, 7-1-1. Slide groove, 7-2. Slider, 7-3. Abutment strip, 7-4. Connecting plate, 7-5. Crossbar, 8. Colorimetric card, 9. Protective film, 10. Flying corner, 11. Detailed Implementation
[0016] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0017] like Figures 1-4 As shown, the specific embodiment adopts the following technical solution: it includes a reagent paper body 1, which is composed of a substrate 1-1 and several reaction papers 1-2. The several reaction papers 1-2 are equidistantly arranged on the upper part of the substrate 1-1. The substrate 1-1 is made of a flexible, waterproof medical-grade polyester film with certain strength and chemical stability, which can prevent sample leakage. It also includes: Leak-proof protrusions 2, of which there are several, are respectively set on the front and back sides of several reaction papers 1-2, and the leak-proof protrusions 2 are fixedly set on the upper part of the base 1-1. The base 1-1 is provided with easy-tear lines 3 between adjacent reaction papers 1-2. The leak-proof protrusions 2 can protect the front and back sides of the reaction papers 1-2, preventing the sample on the reaction papers 1-2 from leaking to the front and back sides and causing environmental pollution or contamination of the hand-held part. Several colorimetric cards 9 are fixedly set on the upper part of the base 1-1, and the colorimetric cards 9 are set on the rear side of the leak-proof protrusions 2. After the sample is dropped on the reaction paper 1-2, the staff can compare it with the colorimetric cards 9 to facilitate accurate judgment of the test results. The isolation strips 4, of which there are several, are respectively disposed on the left and right sides of several reaction papers 1-2, and are fixedly disposed on the upper part of the base 1-1. The isolation strips 4 can achieve physical isolation between adjacent reaction papers 1-2, preventing samples on adjacent reaction papers 1-2 from leaking to each other and causing cross-contamination. The base 1-1 is provided with an easy-tear corner 5 located behind the easy-tear line 3, and the easy-tear corner 5 is set with a "V" shape structure. The easy-tear corner 5 can improve the convenience of tearing and segmenting. To prevent uneven tearing due to force dispersion, a protective film 10 is suspended above the reaction paper 1-2. The protective film 10 is adhered and fixed to the upper part of the leak-proof protrusion 2 and the isolation protrusion 4. When the reagent paper is stored, the protective film 10 can protect the reaction paper 1-2 and prevent the reaction paper 1-2 from being contaminated during idle storage. The protective film 10 is provided with a flap 11, which is located on the rear side of the leak-proof protrusion 2. The staff can easily remove the protective film 10 through the flap 11. Anti-slip grooves 6, there are several anti-slip grooves 6, which are respectively set on the rear side of the upper and lower side walls of the base 1-1. The base 1-1 is provided with an anti-flip grip mechanism 7 that cooperates with the anti-slip grooves 6. When the reagent paper body 1 is torn into a single piece for use, the anti-slip grooves 6 on the base 1-1 can be pinched with fingers to increase the friction between the base 1-1 and the fingers and reduce the occurrence of slippage. The anti-tipping grip mechanism 7 includes: A torsion spring clip 7-1 is clamped and abuts against the base 1-1. Four sliding grooves 7-2 are provided on the opposite side walls of the upper and lower clamping plates 7-1-1 of the torsion spring clip 7-1. A slider 7-3 is slidably arranged in the sliding groove 7-2. An abutting strip 7-4 is fixedly arranged on the slider 7-3. The abutting strip 7-4 abuts against the anti-slip groove 6. Four connecting plates 7-5 are suspended on the left and right sides of the two clamping plates 7-1-1 respectively. The connecting plates 7-5 are fixedly mounted on the two corresponding front and rear abutment strips 7-4. When the reagent paper body 1 is used in multiple segments simultaneously, the anti-folding gripping mechanism 7 can prevent the reagent paper body 1 from folding at the tear line 3. A crossbar 8 is movably inserted in the slide groove 7-2. One end of the crossbar 8 passes through the torsion spring clamp 7-1 and is fixedly connected to the connecting plate 7-5. The other end of the crossbar 8 is fixedly connected to the slider 7-3. The crossbar 8 can realize the connection between the slider 7-3 and the connecting plate 7-5, thereby improving the stability of the slider 7-3, the connecting plate 7-5 and the abutment strip 7-4.
[0018] When using this utility model, the reagent paper body 1 is torn into sections along a certain tear line 3 according to the usage requirements. Then, the connecting plate 7-5 can be moved according to the width of the torn reagent paper body 1. The connecting plate 7-5 drives the abutment strip 7-4 to move. The abutment strip 7-4 drives the slider 7-3 to slide in the groove 7-2 to adjust the clamping width that the torsion spring clip 7-1 and the abutment strip 7-4 can achieve. Then, the torsion spring clip 7-1 can be clamped on the reagent paper body 1, and the abutment strip 7-4 can abut against the anti-slip groove 6 to prevent the reagent paper body 1 from folding along the tear line 3 during use. After that, the protective film 10 can be peeled off, and the sample can be dropped onto the reaction paper 1-2 for testing. In addition, the cooperation of the isolation convex strip 4 and the anti-leakage convex strip 2 can also prevent the sample from leaking and causing cross-contamination of adjacent reaction papers 1-2 or contamination of the working environment.
[0019] Compared with the prior art, the beneficial effects of this utility model are: By setting isolation strips 4 on the left and right sides of reaction paper 1-2, physical isolation between adjacent reaction papers 1-2 can be achieved, preventing side leakage of samples from the left and right sides and causing cross-contamination; at the same time, anti-leakage strips 2 are set on the front and back sides of reaction paper 1-2 to prevent samples from leaking to the front and back sides, avoiding contamination of the environment or the handheld part. The dual protection structure greatly improves the cleanliness of the detection process. The easy-tear line 3 on the base 1-1, together with the "V" shaped easy-tear angle 5, makes the segmented tearing of the reagent paper body 1 easier and effectively avoids the problem of tearing deviation caused by force dispersion. The anti-folding gripping mechanism 7 adjusts the clamping width by sliding the slider 7-3 within the groove 7-2, and works with the crossbar 8 to enhance structural stability, so that the contact strip 7-4 closely contacts the anti-slip groove 6. This effectively prevents the reagent paper body 1 from folding along the tear line 3 during use, ensuring the stability of the sample testing process and providing support for accurate judgment of test results. The protective film 10 not only protects the reaction paper 1-2 in its stored state, but also allows for quick removal of the protective film 10 by utilizing its fly-angle 11 design, reducing preparation time.
[0020] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A tearable and segmentable composite reagent paper, comprising a reagent paper body (1), the reagent paper body (1) being composed of a substrate (1-1) and several reaction papers (1-2), the several reaction papers (1-2) being equidistantly disposed on the upper part of the substrate (1-1); Its features are, It also includes: Leak-proof protrusions (2), there are several of them, which are respectively set on the front and back sides of several reaction papers (1-2), and the leak-proof protrusions (2) are fixedly set on the upper part of the base (1-1). The base (1-1) is provided with easy-tear lines (3) between adjacent reaction papers (1-2). The isolation strip (4) is a plurality of such strips, which are respectively provided on the left and right sides of a plurality of reaction papers (1-2), and the isolation strip (4) is fixedly provided on the upper part of the base (1-1). The base (1-1) is provided with a tear corner (5) at the rear side of the tear line (3), and the tear corner (5) is a "V" shaped structure. Anti-slip grooves (6) are a plurality of such grooves, which are respectively located on the rear side of the upper and lower side walls of the base (1-1). The base (1-1) is provided with an anti-flip grip mechanism (7) that cooperates with the anti-slip grooves (6).
2. The tearable and segmented modular reagent paper according to claim 1, characterized in that: The anti-tipping grip mechanism (7) includes: A torsion spring clip (7-1) is clamped and abuts against the base (1-1). Four sliding grooves (7-2) are provided on the opposite side walls of the upper and lower clamping plates (7-1-1) of the torsion spring clip (7-1). A slider (7-3) is slidably arranged in the sliding groove (7-2). An abutting strip (7-4) is fixedly arranged on the slider (7-3). The abutting strip (7-4) abuts against the anti-slip groove (6). Connecting plates (7-5), there are four connecting plates (7-5), which are respectively suspended on the left and right sides of the two clamping plates (7-1-1). The connecting plates (7-5) are fixedly installed on the two corresponding front and rear abutment strips (7-4).
3. The tearable and segmented modular reagent paper according to claim 2, characterized in that: A crossbar (8) is movably inserted into the groove (7-2). One end of the crossbar (8) passes through the torsion spring clip (7-1) and is fixedly connected to the connecting plate (7-5). The other end of the crossbar (8) is fixedly connected to the slider (7-3).
4. The tearable and segmented modular reagent paper according to claim 1, characterized in that: Several color matching cards (9) are fixedly installed on the upper part of the base (1-1), and the color matching cards (9) are located on the rear side of the rear leak-proof protrusion (2).
5. The tearable and segmented modular reagent paper according to claim 1, characterized in that: A protective film (10) is suspended above the reaction paper (1-2), and the protective film (10) is pasted and fixed on the upper part of the leak-proof protrusion (2) and the isolation protrusion (4).
6. The tearable, segmented, modular reagent paper according to claim 5, characterized in that: The protective film (10) is provided with a flying corner (11), and the flying corner (11) is located at the rear side of the rear leak-proof protrusion (2).