Anti-interference screen printing electrode

Abstract

The utility model discloses an anti-interference silk-screen printing electrode, which relates to the technical field of electrochemistry and comprises a carrier, a main body is fixedly arranged at the upper end of the carrier, a sealing film is arranged above the main body, glue is coated below the sealing film, the glue is positioned on two sides of the main body, the two glue are symmetrically arranged along the center line of the main body, and the glue is coated below the main body. The glue is coated on the carrier at the same time, a cover film is arranged on the inner side of the sealing film, and cutting lines are arranged at the junctions of the cover film and the sealing film. Compared with an existing common silk-screen printing electrode, the anti-interference silk-screen printing electrode has the advantages that the coating II is firstly coated on the main body, and the coating I is coated on the coating II and a carrier near the main body after the coating II is dried, so that the main body can be protected by the coating I and is prevented from being rusted or oxidized, and then the coating II is coated above the coating I, so that the anti-interference performance of the anti-interference silk-screen printing electrode is improved. Therefore, the main body and the first coating can be protected from being scratched through the second coating. And during use, the coating II is directly scraped off.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemistry, in particular to an anti-interference screen-printed electrode. Background Art

[0002] It is crucial to be able to detect small biomolecules quickly and sensitively in clinical diagnostic applications. Among them, the detection of blood sugar, glucose and uric acid is very important. Blood sugar value directly reflects the actual degree of sugar metabolism disorder. Blood sugar control refers to the overall control of blood sugar throughout the day; glucose is an indispensable substance in life activities, and it can directly participate in the metabolic process in the human body; uric acid (UA) exists in blood and urine, and higher or lower uric acid levels may lead to disease. Therefore, rapid detection technology for these three molecules has attracted widespread attention. Electrochemical analysis is considered to be a potential method for detecting blood sugar, glucose, and uric acid, because these molecules are electrically active on the electrode surface and are easily oxidized and reduced.

[0003] As the application number is 201820640287.8, the utility model relates to the field of electrochemical method detection technology, and provides an anti-interference dual-port screen-printed electrode, including an insulated electrode substrate, a detection electrode assembly is provided on the electrode substrate, the detection electrode assembly includes two electrode layers arranged in parallel and extending along the length direction of the electrode substrate, the two electrode layers are respectively a working electrode and a reference electrode, a reaction enzyme layer is covered on the middle part of the working electrode, a lateral chromatography layer is provided on the outer side of the reaction enzyme layer, a selective permeable membrane is provided at the junction of the reaction enzyme layer and the lateral chromatography layer, the middle section of the electrode layer is covered with an insulating layer, and the insulating layer also covers the part of the lateral chromatography layer corresponding to the electrode layer, and the plug-in ends of all the electrode layer pins located at the same end together form an electrode port. The anti-interference dual-port screen-printed electrode provided by the utility model is convenient and fast, has a short response time, and has good anti-interference ability, which can effectively reduce the cost of screen printing and reduce the complexity of printing. However, the connection between the electrode and the adapter of the screen-printed electrode is in an exposed state. As the placement time increases, it is not convenient to protect the electrode and extend its service life.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an anti-interference screen-printed electrode is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-interference screen-printed electrode to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-interference screen-printed electrode, comprising a carrier, a main body is fixedly arranged on the upper end of the carrier, and a sealing film is arranged above the main body, glue is coated on the bottom of the sealing film, and the glue is located on both sides of the main body, two of the glue are symmetrically arranged along the center line of the main body, and the glue is coated on the carrier at the same time, a cover film is arranged on the inner side of the sealing film, and a cutting line is opened at the junction of the cover film and the sealing film.

[0007] Preferably, the upper end of the main body is coated with a protective coating, and the protective coating consists of coating one and coating two, the material of coating one is set to polyvinyl alcohol (PVA), and the area of ​​coating one is larger than the main body.

[0008] Preferably, the thickness of the coating 1 is three millimeters, and after coating, the coating 1 can not only completely cover one end of the main body, but also adhere to the carrier around the main body.

[0009] Preferably, the coating 2 is configured as silicone sealant, and the area of ​​the coating 2 is consistent with that of the main body, the thickness of the coating 2 is one millimeter, and the coating 1 and the coating 2 are both located below the cover film.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model is provided with a carrier, a sealing film, glue, a cover film, a main body, a protective coating, a coating 1 and a coating 2. After the electrode is printed, the coating 2 is first applied on the main body, and after the coating 2 is dried, the coating 1 is applied on the coating 2 and the carrier near the main body. In this way, the main body can be protected by the coating 1 to avoid rust or oxidation over time. Subsequently, the coating 2 is applied on top of the coating 1, so that the main body and the coating 1 can be protected by the coating 2 and will not be scratched. When in use, the coating 2 is directly scraped off to provide convenience for the user while ensuring its protective performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the sealing film of the utility model;

[0014] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0015] Figure 4 This is a schematic diagram of the split structure of the main body and protective coating of the utility model.

[0016] In the figure: 1. carrier; 2. sealing film; 3. glue; 4. cover film; 5. main body; 6. protective coating; 601. coating one; 602. coating two. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-Figure 4 As shown, an anti-interference screen-printed electrode comprises a carrier 1, a main body 5 is fixedly arranged on the upper end of the carrier 1, and a sealing film 2 is arranged above the main body 5, glue 3 is coated on the lower side of the sealing film 2, and the glue 3 is located on both sides of the main body 5, two glues 3 are symmetrically arranged along the center line of the main body 5, and the glue 3 is coated on the carrier 1 at the same time, a cover film 4 is arranged on the inner side of the sealing film 2, and a cutting line is provided at the junction of the cover film 4 and the sealing film 2, a protective coating 6 is coated on the upper end of the main body 5, and the protective coating 6 is composed of a coating 1 601 and a coating 2 602, the material of the coating 1 601 is set to polyvinyl alcohol PVA, and the area of ​​the coating 1 601 is larger than the main body 5, the thickness of the coating 1 601 is three millimeters, and after the coating of the coating 1 601 is completed, it can not only completely cover one end of the main body 5, but also adhere to the carrier around the main body 5. On the body 1, the coating 2 602 is set as silicone sealant, and the area of ​​the coating 2 602 is consistent with the main body 5, the thickness of the coating 2 602 is one millimeter, and the coating 1 601 and the coating 2 602 are both located below the cover film 4. After the electrode is printed, the coating 2 602 is first applied to the main body 5, and after the coating 2 602 is dried, the coating 1 601 is applied to the carrier 1 near the coating 2 602 and the main body 5. In this way, the main body 5 can be protected by the coating 1 601 to avoid rust or oxidation over time. Subsequently, the coating 2 602 is applied on top of the coating 1 601, so that the main body 5 and the coating 1 601 can be protected by the coating 2 602 from being scratched; when in use, the coating 2 602 is directly scraped off to provide convenience for the user while ensuring its protective performance.

[0019] Furthermore, the material used for coating 1 601 is polyvinyl alcohol PVA. PVA material has the advantages of good insulation, long service life, low viscosity, etc., so that it can meet the requirements of not adding burden to the user when protecting the main body 5. At the same time, after coating 2 602 is completely scraped off, it will not affect the use of the main body 5.

[0020] Furthermore, the coating 2 602 is a silicone sealant, which has the advantages of good conductivity, a wide operating temperature range, and excellent aging resistance. This can not only protect the main body 5 from oxidation, but also provide protection for the main body 5 while allowing it to be used normally.

[0021] Furthermore, the coating 601 can be coated on the surface of the main body 5 by screen printing, thereby simplifying the preparation process to a certain extent.

[0022] Furthermore, the sealing film 2 can cover the main body 5 that does not need to be exposed, thereby further providing protection for the main body 5 .

[0023] Furthermore, the cover film 4 can further protect the coating 601 to prevent the coating 601 from being accidentally damaged due to external force when not in use.

[0024] Working principle: When using the anti-interference screen-printed electrode, first, after the electrode is printed, the coating 2 602 is first applied on the main body 5, and after the coating 2 602 is dried, the coating 1 601 is applied on the carrier 1 near the coating 2 602 and the main body 5. In this way, the main body 5 can be protected by the coating 1 601 to avoid rust or oxidation over time, and the coating 2 602 can prevent the coating 1 601 from being directly applied on the main body 5, and the coating 2 602 can be directly scraped off when in use, so as to provide convenience for the user while ensuring its protective performance. This is the working principle of the anti-interference screen-printed electrode.

Claims

1. An anti-interference screen-printed electrode, comprising a carrier (1), characterized in that: A main body (5) is fixedly arranged at the upper end of the carrier (1), and a sealing film (2) is arranged above the main body (5). Glue (3) is coated below the sealing film (2), and the glue (3) is located on both sides of the main body (5). Two glues (3) are symmetrically arranged along the center line of the main body (5), and the glue (3) is coated on the carrier (1) at the same time. A cover film (4) is arranged on the inner side of the sealing film (2), and a cutting line is provided at the junction of the cover film (4) and the sealing film (2).

2. The anti-interference screen-printed electrode according to claim 1, characterized in that: The upper end of the main body (5) is coated with a protective coating (6), and the protective coating (6) is composed of coating 1 (601) and coating 2 (602), the material of coating 1 (601) is set to polyvinyl alcohol (PVA), and the area of ​​coating 1 (601) is larger than that of the main body (5).

3. The anti-interference screen-printed electrode according to claim 2, characterized in that: The coating 1 (601) has a thickness of three millimeters, and after coating, the coating 1 (601) can not only completely cover one end of the main body (5), but also adhere to the carrier (1) around the main body (5).

4. The anti-interference screen-printed electrode according to claim 2, characterized in that: The coating 2 (602) is configured as silicone sealant, and the area of ​​the coating 2 (602) is consistent with the main body (5). The thickness of the coating 2 (602) is one millimeter. The coating 1 (601) and the coating 2 (602) are both located below the cover film (4).

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