Automated Coagulation Analyzer with Immunoturbidimetric Assays

What is the Automated Coagulation Analyzer with Immunoturbidimetric Assays?

This analyzer includes immunoturbidimetric channels that measure specific proteins such as D-dimer, von Willebrand factor and antithrombin by light scatter from antigen-antibody complexes. It suits laboratories testing both clotting times and thrombotic markers on one platform.

Overview

Immunoturbidimetric assays add latex-bound antibody to diluted plasma, and the increase in turbidity as complexes form is measured at a defined wavelength, typically 540 to 700 nanometers. The signal is proportional to analyte concentration over the validated range, and an antigen excess check prevents falsely low results at very high concentrations. Because these reactions take longer than clotting tests, the analyzer schedules them on dedicated channels or during periods when clotting demand is low, and the software manages calibration separately for each assay with lot-specific curves. Combined testing supports pathways such as D-dimer with a clinical probability score for excluding venous thromboembolism, and von Willebrand factor panels for bleeding disorder investigation, without sending samples to a second instrument.

How does it work?

An automatic analyzer moves plasma from a sample tube to a reaction cuvette, adds reagent from a cooled position, incubates at 37 degrees Celsius and starts the measurement. Detection may be optical, using the change in light scatter or turbidity as fibrin forms; mechanical or magnetic, following the movement of a ball; or chromogenic, measuring the colour released from a synthetic substrate at 405 nanometers. Immunoturbidimetric channels measure light scattered by antigen-antibody complexes for assays such as D-dimer. The software applies the stored calibration for each reagent lot, calculates ratios and international normalised ratios, applies reflex rules such as automatic repeat at a dilution, and flags results for review. Random access allows any test combination on any sample, and STAT samples are given priority so that emergency results are not delayed by routine batches.

What are the key features?

• Immunoturbidimetric channels with latex-enhanced reagents
• Measurement at 540 to 700 nanometers for protein assays
• Antigen excess check to prevent falsely low results
• Dedicated scheduling for long immunoturbidimetric reactions
• Lot-specific calibration per protein assay
• One platform for clotting times and thrombotic markers

What are the technical specifications?

A typical automated coagulation analyzer with immunoturbidimetric assays configuration offers detection principle of Immunoturbidimetry with latex enhancement, wavelengths of 540–700 nm selectable, typical assays of D-dimer, von Willebrand factor, antithrombin, fibrinogen, throughput of 150–400 tests/h combined, immunoturbidimetric reaction time of 5–15 min per assay and calibration of Multi-point, lot-specific per assay. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Automated Coagulation Analyzer with Immunoturbidimetric Assays is used in D-dimer testing for thromboembolism exclusion, von Willebrand disease investigation, antithrombin and thrombophilia testing and sepsis and inflammation coagulation markers. Across the wider Automatic Coagulation Analyzers class, laboratories also deploy it for hospital routine and emergency hemostasis testing, anticoagulation monitoring and dosing and pre-operative and bleeding disorder assessment.

Which standards and certifications apply?

Relevant standards and methods include ISO 15189, CLSI H57, CLSI H21, CLSI EP05, CLSI EP15, IEC 61010-1 and IEC 61010-2-101. Certification candidates for this model are CE, ISO 13485 manufacturing and NMPA class II registration; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Install the analyzer on a stable bench or floor position with controlled temperature, a grounded power supply and space for reagent and waste containers, and verify performance at installation with precision, linearity and method comparison studies for every assay reported. Daily work includes running normal and abnormal control plasma, checking reagent and cuvette status and reviewing calibration validity. Optical and mechanical detection systems need periodic cleaning and mechanical alignment checks, and the sample and reagent probes require regular decontamination. Because pre-analytical variables strongly influence coagulation results, the laboratory should monitor tube fill, transport time and centrifugation parameters as part of quality management, and participate in external quality assessment for all reported assays.

How do I select the right Automated Coagulation Analyzer with Immunoturbidimetric Assays?

Specify this variant when D-dimer and other protein assays are requested frequently and consolidating them avoids a second instrument and extra sample handling. In the RFQ confirm which immunoturbidimetric assays are validated on the platform, the cut-offs and units used, whether results are method specific, and the reagent storage and stability requirements.

How does it compare with other Automatic Coagulation Analyzers variants?

Match the instrument to your workload and menu. A benchtop analyzer with two to six reagent positions suits a laboratory reporting one hundred to three hundred tests per day, while high-throughput models with multiple reagent carousels are needed above about five hundred tests. Check which detection principles are available, because chromogenic and immunoturbidimetric assays require additional channels and reagents, and check whether cap piercing is needed for biosafety. Consider the sample volume for pediatric tubes, reagent onboard capacity and refrigeration, STAT handling and first-result time, reflex rules such as automatic dilution, and the availability of application support and calibrators. Confirm LIS connectivity and the traceability features, including lot, curve and operator records required for accreditation.