Multiplex PCR Cycle Detection for Pathogen Specificity

The patent divides the multiplex PCR analysis into multiple discrete detection channels, each assigned to detect specific amplification products. By segmenting the detection process into distinct fluorescent channels with unique wavelength ranges, the system can simultaneously monitor multiple targets while maintaining precise measurement of each individual product, thus resolving the contradiction between high-throughput multiplexing and accurate detection.

The patent combines multiple PCR amplification reactions into a single multiplex PCR reaction by incorporating multiple primer pairs targeting different organisms into one reaction mixture. This merging approach maintains the robustness and specificity of nested PCR for each target while eliminating the need for separate handling steps, thereby reducing time loss and minimizing contamination risks associated with multiple transfer operations.

The patent employs fluorescent dyes with distinct emission wavelengths to label different amplification products. Each target organism is assigned a unique fluorescent color signature, allowing the detection system to distinguish between true positive signals from clinical infections and background contamination based on the specific color pattern and intensity profile. This spectral differentiation enables accurate interpretation even when multiple organisms are present at varying concentrations.