VivaChek Immunofluorescence Instruments for Rapid Testing

Understanding VivaChek's Immunofluorescence Instrument Line

Point-of-care testing depends on instruments that can turn a small biological sample into a clear, actionable result within minutes. Within its broader diagnostics portfolio, VivaChek Biotech (Hangzhou) Co., Ltd. offers an immunofluorescence instrument line built to work alongside a range of VivaDiag FIA test kits, giving healthcare professionals a compact system for quantitative or qualitative measurement of multiple parameters. This article examines the technology, supporting test kits, and clinical coverage areas associated with VivaChek's immunofluorescence instruments, drawing exclusively on information published by the company.

The VivaDiag Multifunction Meter (Model: VIM220H): Core Technology

The VivaDiag Multifunction Meter, identified by the model number VIM220H, is positioned as a system that works with VivaDiag FIA Test Kits to deliver quantitative or qualitative measurement across multiple parameters. According to company information, professionals working in point-of-care and laboratory settings need rapid, reliable results to support quick decision-making, and this meter is built around that requirement.

Detection Principle and Technology
The VIM220H is described as an immunofluorescence detection device based on the photoelectric detection principle. It applies fluorescence immunochromatography technology to process samples and generate results. This combination allows the meter to read fluorescence signals from a test strip and translate them into measurable output.

Key Operational Features

• Detection principle: Photoelectric detection
• Technology: Fluorescence immunochromatography
• Sample type: Tiny sample
• Result time: Just a few minutes

Because the meter is designed to work with a tiny sample and return results in just a few minutes, it is positioned for professional in vitro diagnostic use, where turnaround time and reliability both matter. VivaChek describes the differentiated value of this instrument as delivering reliable results in just a few minutes from tiny samples, using fluorescence immunochromatography as the underlying detection technology.

Comprehensive Test Kit Portfolio Supporting the Instrument

The VIM220H is designed to be used together with a series of VivaDiag FIA Test Kits, each targeting a specific analyte relevant to different clinical questions. According to VivaChek's published product information, the following test kits form part of this ecosystem:

• T3 VivaDiag Triiodothyronine Test Kit (FIA): A fluorescence immunoassay for quantitative determination of T3 in human serum or plasma. T3 measurement can be used as one indicator to evaluate thyroid function.
• fT3 VivaDiag Free Triiodothyronine Test Kit (FIA): A fluorescence immunoassay for quantitative determination of fT3 in human whole blood, serum, or plasma, collected via fingerstick or venous sampling. Measurement of fT3 can likewise be used as one indicator to evaluate thyroid function.
• CAL VivaDiag Calprotectin Test Kit (FIA): A fluorescence immunoassay for quantitative determination of Calprotectin in human feces. This test aids management and monitoring of reflex gastrointestinal inflammation caused by inflammatory bowel disease, colorectal cancer, and some enteropathies.
• SAA VivaDiag Serum Amyloid A Protein Test Kit (FIA): A fluorescence immunoassay for quantitative determination of serum amyloid A protein in human whole blood, serum, or plasma. Measurement of SAA can evaluate viral and bacterial infections.
• MOP VivaDiag Morphine Test Kit (FIA): A fluorescence immunoassay for quantitative determination of Morphine in human hair, providing information for drug of abuse assessment.
• cTnI/CK-MB/MYO VivaDiag Cardiac Combo Test Kit (FIA): A fluorescence immunoassay for quantitative determination of cardiac troponin I, creatine kinase-MB, and myoglobin in human whole blood, serum, or plasma. These cardiac biomarker measurements may serve as indicators for diagnosis of myocardial injury and can help assess prognosis.
• Anti-SARS-CoV-2 S: Listed within the immunofluorescence product portfolio for SARS-CoV-2 S testing.
• SARS-CoV-2/Flu A/Flu B: Listed within the immunofluorescence product portfolio for testing that addresses SARS-CoV-2, Flu A, and Flu B.

Each kit specifies its own sample type and assay type, but all rely on fluorescence immunoassay methodology and are designed to be read on the compatible instrument, forming a coherent detection ecosystem rather than a set of isolated products.

Broad Diagnostic Coverage Across Clinical Categories

Beyond individual test kits, VivaChek organizes its immunofluorescence offering into distinct clinical categories, reflecting the breadth of conditions the instrument line can help address:

• Immunofluorescence——Instruments: The instrument product line itself, supporting the VivaDiag FIA test kit line.
• Immunofluorescence——Diabetes: Supports rapid diagnosis through fluorescence immunoassay testing related to diabetes.
• Immunofluorescence——Cardiac markers: Supports cardiac marker measurement through fluorescence immunoassay testing.
• Immunofluorescence——Renal function: Supports renal function assessment through fluorescence immunoassay testing.
• Immunofluorescence——Hormone: Supports hormone measurement through fluorescence immunoassay testing.
• Immunofluorescence——Drug of abuse: Supports drug abuse assessment through fluorescence immunoassay testing.
• Immunofluorescence——Tumor markers: Supports tumor marker assessment through fluorescence immunoassay testing.
• Immunofluorescence——Inflammation: Supports inflammation evaluation through fluorescence immunoassay testing.
• Immunofluorescence——Autoimmune: Supports autoimmune testing through fluorescence immunoassay.
• Immunofluorescence——Infectious diseases: Supports infectious disease assessment through fluorescence immunoassay.
• Immunofluorescence——Others: Broadens the immunofluorescence test menu for additional diagnostic testing needs.

This categorization illustrates how a single instrument platform, paired with different reagent kits, can be applied across thyroid function, gastrointestinal inflammation, infection markers, drug screening, and cardiac assessment, among other areas, all within the same fluorescence immunochromatography detection framework.

Quality Assurance and Corporate Background

VivaChek Biotech (Hangzhou) Co., Ltd. was established in August 2013 and operates from its headquarters in Linping District, Hangzhou, Zhejiang, People's Republic of China. The company also maintains related entities, including VivaChek Laboratoires, Inc. in Wilmington, Delaware, USA; Vivachek Diagnostics Inc. in Sacramento, California, USA; VivaChek Life Care in Chennai, India; along with Singapore and India branches.

The company's quality management system is described as aligned with FDA 510(k) clearance, European Union CE, China NMPA, EN ISO 13485, China GMP, the international ISO system, and FDA QSR (Quality System Regulations). These certifications apply across VivaChek's diagnostic portfolio, of which the immunofluorescence instrument line is one component.

VivaChek describes its strategic positioning as building an ecosystem of chronic disease management, rapid diagnosis, and digital medical services, operating under the development concept of "making health management accessible." The immunofluorescence instrument and its associated test kits fit within this broader rapid diagnosis ecosystem, offering professional users a way to obtain multiple types of biomarker information from a single compact device.

Global Reach and Industry Positioning

VivaChek states that its products are available in over 120 countries across the globe. The company has participated in global medical exhibitions, including FIME, CMEF, MEDICA, Arab Health, EASD, Medtrade, MEDICAL FAIR THAILAND, SFD, and MEDIALAB Asia Pacific, between 2014 and 2019, and has supported exhibition activities tied to World Diabetes Day awareness.

For healthcare professionals seeking a fluorescence immunoassay platform capable of addressing thyroid function, gastrointestinal inflammation, infection markers, cardiac injury indicators, and drug screening from a single meter and a compatible set of test kits, VivaChek's VivaDiag Multifunction Meter (VIM220H) and its associated Immunofluorescence——Instruments line represent a documented option within the company's professional in vitro diagnostic portfolio.

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VivaChek Biotech (Hangzhou) Co., Ltd.