Wireless Wound Dressing Moisture Monitoring Without Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wound care technologies struggle to monitor moisture levels in wounds without disrupting the healing process, as removing protective dressings to assess moisture can lead to irritation and infection risks.
Innovation Solution
A flexible coupon with integrated electrochemical moisture sensors and a wireless communication system that allows for non-invasive, real-time moisture measurement and mapping, using a flexible substrate with radio-frequency antenna and microcontroller to transmit data without requiring batteries or wired connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If protective dressings are removed to examine wound moisture levels, then moisture assessment can be performed, but wound irritation and disruption of healing occur
Solution Approach 1:
A flexible coupon with moisture sensors is introduced as an intermediary device between the wound and the external environment. The coupon includes a flexible substrate with electrochemical moisture sensor circuits that can be placed on or in the wound dressing to continuously monitor moisture levels without requiring removal of the protective dressing, thereby eliminating wound irritation while maintaining accurate moisture assessment
Solution Approach 2:
The manual mechanical process of removing dressings to visually assess moisture is replaced with an electrochemical sensing system. The electrochemical moisture sensor circuits detect moisture levels through electrochemical reactions, substituting the mechanical action of dressing removal with a non-invasive electrical measurement process that provides continuous monitoring
2Measurement precision
If protective dressings are removed to assess moisture, then moisture levels can be evaluated, but infection risk increases
Solution Approach 1:
The flexible coupon acts as a barrier and monitoring intermediary that remains in place throughout the treatment period. By continuously monitoring moisture levels through the intact dressing system, the coupon eliminates the need to breach the protective barrier, thereby maintaining infection protection while providing reliable moisture evaluation data
Solution Approach 2:
The moisture monitoring function operates continuously through the electrochemical sensor circuits that remain active throughout the dressing wear period. This continuous monitoring provides ongoing moisture evaluation without interruption or removal of the protective dressing, ensuring both infection prevention and reliable data collection throughout the entire treatment cycle
3Productivity
If wireless communication components are added to enable real-time monitoring, then continuous moisture tracking is achieved, but device complexity increases
Solution Approach 1:
The flexible coupon is designed as a multi-functional integrated system where a single device performs multiple functions: the electrochemical moisture sensor circuits monitor moisture levels, the near-field communication module enables wireless data transmission, and the flexible substrate provides structural support and biocompatibility. This universal design consolidates multiple functions into one compact device, achieving real-time monitoring without proportionally increasing overall system complexity
Solution Approach 2:
The use of a flexible substrate as the base for all components allows the entire monitoring system to be made thin and conformal to the wound area. This flexible film structure integrates sensors, circuitry, and communication modules in a compact form factor that minimizes complexity while enabling continuous real-time monitoring through close contact with the wound surface
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 continuous, real-time wound moisture monitoring, reducing infection risk and facilitating timely management of exudate levels, while providing a cost-effective, disposable, and comfortable solution for wound care.
Implementation Method 1
at least one electrochemical moisture sensor circuit disposed on the bottom surface of the flexible substrate
Implementation Method 2
an antenna circuit disposed on the top surface of the flexible substrate configured to at least receive the radio frequency signals from the transceiver
Data Source
AI summary
A wound dressing for wireless communication with a transceiver includes a radio-frequency antenna circuit disposed on a flexible substrate, and an electrochemical moisture sensor circuit disposed on a surface of the flexible substrate. An adhesive is provided to attach the wound dressing skin of a user. The electrochemical moisture sensor is arranged between the adhesive and the flexible substrate.