Portable Fluorescence Imaging for Real-Time Wound Infection Detection
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Solution Overview
Problem
Current wound care methods rely heavily on subjective visual assessment and invasive techniques like bacterial swabs and tissue biopsies, which are time-consuming, costly, and often fail to detect early bacterial infections, leading to delayed treatment and increased morbidity.
Innovation Solution
A portable, fluorescence-based imaging device for real-time, non-invasive monitoring of wounds that provides high-resolution images of biochemical and biological changes, including bacterial contamination, using excitation light sources and a detector to capture fluorescence signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual inspection and bacterial swabs are used for wound assessment, then the assessment can be performed with simple equipment, but the detection precision for bacterial infection is insufficient and results are delayed
Solution Approach 1:
The patent replaces mechanical/invasive methods (visual inspection, bacterial swabs) with optical/fluorescence-based detection. The fluorescence imaging device uses optical principles to non-invasively detect bacterial infections through fluorescence signals, eliminating the need for physical swabs and biopsies while achieving superior detection precision.
Solution Approach 2:
The patent changes the detection parameter from traditional white light visualization to fluorescence wavelength detection. By using specific wavelength light sources and detecting fluorescence emission at different wavelengths, the system can identify bacterial infections that are invisible under conventional lighting, thereby improving measurement precision without requiring complex invasive procedures.
2Productivity
If bacterial swabs and tissue biopsies are collected, then bacterial identification can be obtained, but the process is time-consuming and costly
Solution Approach 1:
The patent replaces time-consuming mechanical procedures (swabbing, biopsy, laboratory culture) with rapid optical detection. The fluorescence imaging system provides real-time or near-real-time visualization of bacterial infections, eliminating the 2-3 day delay inherent in traditional culture methods and significantly accelerating the detection timeline.
Solution Approach 2:
The patent enables preliminary detection of bacterial infections before traditional culture results are available. By using fluorescence imaging to visualize bacterial presence and distribution in real-time, clinicians can initiate targeted treatment immediately, while traditional culture results serve only as confirmatory data.
3Loss of information
If qualitative visual assessment is used, then the assessment is simple and quick, but it does not provide information about underlying biological and molecular changes
Solution Approach 1:
The patent replaces simple visual assessment with advanced optical imaging technology. The fluorescence imaging device detects molecular and cellular changes through fluorescence signals, providing objective data about tissue health, bacterial load, and healing progress that goes far beyond subjective visual evaluation while maintaining operational simplicity.
Solution Approach 2:
The patent transitions from qualitative visual parameters to quantitative optical parameters. By measuring fluorescence intensity, wavelength, and temporal changes, the system objectively quantifies biological and molecular changes in real-time, providing precise information about tissue remodeling, inflammation, and infection status.
4Reliability
If invasive techniques like swabs and biopsies are used, then bacterial detection can be performed, but the procedures are painful and increase patient morbidity
Solution Approach 1:
The patent replaces invasive mechanical procedures with non-invasive optical detection. The fluorescence imaging system detects bacteria through the skin surface using light, completely eliminating the need for painful swabs, biopsies, or needle aspirations, thereby maintaining detection reliability while removing all harmful invasive effects.
Solution Approach 2:
The patent uses fluorescence as an intermediary signal to indirectly detect bacteria. Instead of directly contacting or invading the wound tissue to sample bacteria, the system uses fluorescence-emitting bacteria or fluorescently-labeled antibodies as intermediaries that can be visualized through the tissue, providing reliable detection without direct invasive contact.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid, objective assessment of wound healing and bacterial presence, guiding therapeutic interventions and reducing morbidity by providing valuable biological information in real-time, suitable for integration into telemedicine and various clinical and non-clinical applications.
Implementation Method 1
a light source emitting light for illuminating the target, the emitted light including at least one wavelength or wavelength band causing at least one biomarker associated with the target to fluoresce
Implementation Method 2
a light detector for detecting the fluorescence
Data Source
AI summary
A device for fluorescence-based imaging and monitoring of a target is provided. The device includes a light source emitting light for illuminating the target, the emitted light including at least one wavelength or wavelength band causing at least one biomarker associated with the target to fluoresce, and a light detector for detecting the fluorescence.