Multilayer film test module

The parts of the multilayer film test module as illustrated in Fig. 29 are described as follows In the sample port the sample is introduced into the test module. The spreader consists of a plastic grid which ensures a uniform spreading of the applied sample. The film chip contains three layers coated onto a polyester film base. The optical window permits the fluorescent signal from the multilayer film to be read by the fluorimeter of the analyzer. 

The reagents used for the Opus system are totally self-contained in the test modules. There are two types of assay methodologies used with the analyzer multilayer film assays and fluorogenic ELISA assays. 

The OPUS system has dry reagents impregnated in a coated multilayer film chip encased within a plastic bar coded test module. No external or supplementary reagents are required. A serum or plasma specimen is applied to the test module by the instrument and the fluorescence intensity from the module is measured after an assay-specific time interval. 

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