Wound Dressing with Motion-Compensated Oxygen Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for monitoring wound healing are bulky, expensive, and require specialist equipment, making them unsuitable for frequent or long-term assessments at home, and are susceptible to patient movement, leading to erroneous results.
Innovation Solution
A portable, disposable wound dressing with integrated sensors, including a pulse oximeter and motion sensor, that can be secured to the patient's skin, providing real-time oxygen saturation data and motion compensation to ensure accurate readings, and can be used with a smartphone or tablet for remote monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional spectroscopy techniques are used to monitor oxygen saturation, then measurement precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The system divides the monitoring function into separate components: a simple wearable sensor unit for local measurements and a separate processing system for analysis. This segmentation allows the wearable component to be minimal while maintaining measurement capability through intelligent signal processing elsewhere in the system.
Solution Approach 2:
The patent replaces complex mechanical/optical spectroscopy equipment with a simpler sensor-based system that uses photodetectors and electronic signal processing. This substitution eliminates the need for bulky optical instruments while achieving comparable measurement precision through electronic rather than mechanical means.
2Measurement precision
If conventional clinic-based equipment is used, then measurement precision is improved, but ease of operation deteriorates due to requiring experienced operators
Solution Approach 1:
The wearable sensor system automatically performs measurements and data collection without requiring skilled operators. The device self-regulates its operation, continuously monitoring and transmitting data without human intervention, thereby eliminating the barrier of requiring experienced operators while maintaining assessment accuracy.
Solution Approach 2:
The system incorporates automatic feedback mechanisms that continuously monitor wound parameters and adjust measurements accordingly. This feedback loop ensures accurate data collection regardless of operator skill level, as the system automatically compensates for variations in measurement conditions and provides consistent results.
3Measurement precision
If patient must attend clinic regularly for assessment, then measurement precision is maintained, but loss of time increases due to frequent travel and appointments
Solution Approach 1:
The wearable sensor enables continuous, uninterrupted monitoring of wound healing parameters as the patient goes about their daily life. This eliminates the discontinuous nature of clinic visits, providing constant data collection without requiring the patient to stop their routine activities for assessment appointments.
Solution Approach 2:
The system transitions from spatial monitoring (requiring physical presence at a clinic location) to temporal monitoring (continuous data collection over time). By moving the monitoring capability from a fixed location to a wearable form factor, the system enables continuous measurement across different times and locations, eliminating travel time and appointment scheduling.
4Measurement precision
If bulky specialist equipment is used, then measurement precision is improved, but ease of operation deteriorates due to patient movement susceptibility
Solution Approach 1:
The wearable sensor is designed with dynamic characteristics that allow it to accommodate patient movement. The sensor can detect and compensate for motion artifacts in real-time, maintaining measurement precision even when the patient moves their body, thereby resolving the contradiction between measurement accuracy and motion resistance.
Solution Approach 2:
The system incorporates preliminary anti-action mechanisms that detect and compensate for motion effects before they can compromise measurement accuracy. By anticipating and correcting for motion artifacts proactively, the system maintains precise measurements despite patient movement that would otherwise degrade measurement quality.
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 reliable, accurate, and convenient wound healing assessments without interfering with daily activities, providing continuous, motion-compensated oxygen saturation data for effective wound monitoring.
Implementation Method 1
spectroscopy techniques such as near-infrared imaging have been developed to monitor oxygen saturation in a wound and the surrounding tissue
Implementation Method 2
it is known that oxygen saturation is correlated with blood perfusion and so spectroscopy techniques such as near-infrared imaging have been developed to monitor oxygen saturation
Implementation Method 3
The sensor module 14 comprises a first sensor in the form of a motion sensor 18 for sensing motion of the sensor 18
Data Source
Figure 1
Figure 2
Figure 3
AI summary
In some embodiments, a wound dressing includes at least one motion sensor for sensing a motion related parameter associated with motion of the wound dressing; and at least one further sensor for sensing a healing related parameter associated with wound healing at a region of tissue of a wound or proximate a wound covered by the wound dressing.