In order to further optimize the new coronavirus testing strategy and serve the needs of epidemic prevention and control, on March 22, 2022, the National Health Commission issued the "Notice on Printing and Distributing the Implementation Guidelines for Regional Novel Coronavirus Nucleic Acid Testing Organizations (Third Edition)", pointing out that all localities can combine the relevant requirements of new coronavirus antigen testing to promote the monitoring mode of "antigen screening and nucleic acid diagnosis", and increase antigen testing as a supplementary means of regional nucleic acid testing.
What is an antigen test?
Antigen detection is the detection of the structural proteins of the novel coronavirus, including S protein, N protein, M protein, and E protein. Once the human body is infected with the new coronavirus, these structural proteins can act as immunogens to stimulate plasma cells to produce specific antibodies. The antigen reagent uses the principle of specific binding of antigen to antibody, and the presence of antigen can be detected by antibody, so as to prove the presence of new coronavirus in the sample
Why antigen tests?
1. It can be used for screening of specific populations, which is conducive to improving the ability of "early detection" and facilitating the early triage and rapid management of suspected new crown populations
2. It is convenient to operate, supports home self-testing, has fast detection speed and low cost, which can effectively reduce the inconvenience of waiting for nucleic acid results for a long time and reduce the risk of cross-infection
According to the report of Huaan Securities Research Institute, the new crown antigen test, as an important supplementary means of acid testing, has a total demand of more than 30 billion yuan in the diagnosis and treatment of primary medical and health institutions, the testing of isolation observers, and the self-testing of community residents. In the long run, if the society opens up under the normalization of the new crown, the market size of antigen testing is expected to reach 270 billion yuan.
From nucleic acid testing to antigen self-testing, a new coronavirus testing market with a scale of hundreds of billions is taking shape. Antigen reagent manufacturers need to rapidly expand their production capacity in a short period of time to meet the rapidly rising market demand. Fully automating the testing process to meet future order peaks, improving the production efficiency of antigen reagents and ensuring product quality is the only way to go.
Today, we will take you to the production line process of antigen reagents, analyze the difficulties of product testing in the production process, and recommend the best visual inspection solution for you, so as to help you quickly realize the automation of antigen reagent production and testing, and effectively ensure product quality and reduce labor costs while improving production efficiency!
1. Lower cover plate feeding
The manufacturer uses the manipulator to position and grab the lower cover plate to load, but it is a big problem to ensure the accuracy of the grabbing. Cognex's breakthrough pattern-matching technology, PatMax RedLine, is a no-brainer
Application difficulties: the track running speed is fast, and the product placement is not uniform
Applicable products: In-Sight 7000 and In-Sight 8000
2. Cutting the reagent strip
Antigens have strict requirements for reagent strips, and it is necessary to ensure that the cut width is uniform, and any defects may have an impact on the antigen test results. Cognex deep learning technology makes it easy to analyze complex defect detection tasks
Application difficulties: There are many types of defects in reagent strips, and high requirements for cutting dimensional accuracy
Applicable products: In-Sight 2800 and In-Sight D900
3. Reagent strip installation
Accurate positioning is required when installing the test strip tampon, and the results are checked to ensure that the installation position is correct. The powerful ViDi EL classification tool is able to classify defects into different categories and correctly identify parts with differences
Application difficulties: Position positioning requires high precision, and the product runs fast, requiring high-speed positioning
Applicable products: In-Sight 2800
4. Grab the upper cover
When the manipulator is used for positioning and grabbing, a certain precision is required to ensure that the grasping is accurate and efficient. PatMax RedLine image matching technology makes it no longer difficult for the robot to position and grasp
Application difficulties: the track movement speed is fast, and the product placement position is not uniform
Applicable products: In-Sight 7000 and In-Sight 8000
5. The card loading machine guides the pressing
The entire kit is completed by a manipulator guiding the gland, which places extremely high demands on the positioning system. Cognex's compact vision systems fit into the tight spaces of robots, reducing cycle time and increasing throughput without compromising inspection accuracy
Application difficulties: alignment detection, multi-point positioning, high precision required
Applicable products: In-Sight 7000 and In-Sight 8000
6. CCD appearance inspection of the lid
First, detect whether there are black spots, dirt, damage and other defects on the surface of the kit; Then, the reagent strip is tested again to be installed in the correct position, and finally the surface characters and QR codes are recognized. Cognex products that address challenging optical character recognition, assembly verification, and defect detection applications
Application difficulties: many types of defects; High positioning accuracy requirements; Front and back detection, character deletion detection, QR code detection speed
Applicable products: In-Sight 2800, In-Sight D900, DataMan 280, Vision Pro Deep Learning
7. Coding and marking of packaging bags
The outer packaging of the kit also needs to be subject to character recognition, defect detection, QR code recognition, duplicate code detection, and front and back detection of the cover plate to ensure that the product is traceable and unique. The latest Cognex technology improves barcode handling and coverage, increasing read processing speeds
Application difficulties: There are many types of character OCR defects, and the product movement speed is fast
Applicable products: DataMan 280 and In-Sight 2800
8. Aluminum foil bagging and sealing
Finally, it is necessary to check whether the bag is damaged, whether the seal is safe and whether the characters are complete to ensure the safety of the product. Cognex combines deep learning technology with traditional rule-based vision tools to address the wide range of applications described above
Application difficulties: the sealing defects are not obvious, and there are many types of defects
Applicable products: In-Sight 2800 and In-Sight D900
Cognex is committed to providing customers with the best visual inspection solutions, and in this epidemic battle, it has also helped many pharmaceutical and medical-related customers to do safety testing from the source of production and avoid defective products entering the market. We will always be deeply engaged in the field of machine vision, help customers improve product yield, improve quality control and reduce overall production costs, and help enterprises complete the transformation of "intelligent manufacturing". Let's win this battle against the epidemic together!
*Note: The Cognex products mentioned above are not medical devices and are not intended for any diagnostic or therapeutic purpose on their own.
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