Wound Infection Detection via Pathogen VOC Sensors
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Solution Overview
Problem
Current diagnostic methods for wound infections are time-consuming, resource-intensive, and often delayed, leading to sub-optimal antibiotic treatment and increased antibiotic resistance, as they lack real-time detection capabilities and sensitivity.
Innovation Solution
A system comprising sensors and processors that detect volatile organic compounds (VOCs) emanating from pathogens in wounds, using nanostructured materials and machine learning algorithms to identify pathogens and determine infection presence in real-time, integrated into wearable or portable devices and negative pressure wound devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional culture-based and molecular methods are used for wound infection detection, then diagnostic accuracy can be achieved, but the process is time-consuming and delays real-time detection
Solution Approach 1:
The patent replaces traditional mechanical culture-based methods and complex molecular techniques with an electronic sensor system that detects volatile organic compounds (VOCs) emanating from pathogens. This substitution enables real-time detection without requiring sample transport or complex laboratory processing, thereby maintaining diagnostic accuracy while eliminating time delays.
Solution Approach 2:
The patent introduces volatile organic compounds (VOCs) as an intermediary medium for pathogen detection. Instead of directly analyzing pathogens through culture or molecular methods, the system detects VOCs that pathogens emit, which serves as a real-time proxy indicator of infection presence and pathogen identity, enabling immediate detection without waiting for pathogen cultivation.
2Measurement precision
If sample transport and complex laboratory processing are performed, then pathogen identification can be achieved, but resource consumption increases and user error risk rises
Solution Approach 1:
The patent extracts the essential detection function from complex laboratory settings and implements it directly at the wound site through a portable sensor device. By detecting VOCs in situ, the system eliminates the need for sample transport, laboratory equipment, and complex processing steps, thereby reducing device complexity and resource consumption while maintaining pathogen identification capability.
Solution Approach 2:
The patent enables the wound care system to perform pathogen detection autonomously without requiring external laboratory resources. The sensor device automatically detects and identifies pathogens through VOC analysis, eliminating the need for external laboratory processing and reducing dependency on complex equipment and specialized user skills.
3Speed
If empirical treatment is initiated before pathogen confirmation, then treatment time is reduced, but antibiotic resistance increases due to sub-optimal antibiotic selection
Solution Approach 1:
The patent performs preliminary pathogen identification through VOC detection before antibiotic selection is made. By providing real-time information about the specific pathogen present, the system enables clinicians to select appropriate antibiotics in advance, avoiding the need for empirical treatment and ensuring optimal antibiotic selection from the outset, thereby preventing antibiotic resistance development.
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 non-invasive, real-time monitoring and early detection of wound infections, facilitating timely and appropriate antimicrobial therapy, reducing the risk of complications and antibiotic resistance.
Implementation Method 1
The at least one sensor detects one or more gases emanating from one or more pathogens in a wound that produce an infection. The at least one sensor includes sensing materials that change one or more properties in response to a presence of the one or more gases.
Data Source
AI summary
According to a present invention embodiment, at least one sensor detects one or more gases emanating from one or more pathogens in a wound that produce an infection. The at least one sensor includes sensing materials that change one or more properties in response to a presence of the one or more gases. At least one processor analyzes information from the at least one sensor to identify the one or more pathogens and determine a presence of the infection in the wound. The one or more pathogens are identified based on patterns of changes of the one or more properties indicating corresponding pathogens. The at least one sensor may be disposed within one of a wearable device, a portable device, and a wound dressing. In addition, a negative pressure source may be utilized to apply negative pressure to the wound to promote healing.