Flexible Sensor Wound Dressing for Real-Time Monitoring
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Solution Overview
Problem
Current wound dressings for negative pressure wound therapy (NPWT) lack effective visualization and information about the wound site, leading to premature dressing changes and inadequate assessment of wound healing progress.
Innovation Solution
A wound monitoring apparatus with a flexible substrate supporting sensors such as temperature, conductivity, optical, and pH sensors, which communicate data to a controller and processing device for real-time monitoring of wound conditions, enabling wireless communication and cloud data storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional wound dressings are used for negative pressure wound therapy, then the wound can be treated with negative pressure, but the clinician cannot effectively monitor the wound condition beneath the dressing
Solution Approach 1:
The patent combines multiple sensing functions (temperature, optical, pH, conductivity sensors) and communication capabilities into the wound dressing itself, merging the monitoring system with the therapeutic dressing to enable continuous wound condition assessment without requiring separate monitoring devices
Solution Approach 2:
The wound dressing is designed to perform multiple functions simultaneously: it provides negative pressure therapy, absorbs wound exudate, maintains moist environment, and monitors wound conditions through integrated sensors that detect temperature, pH, optical properties, and conductivity
2Measurement precision
If the dressing is changed frequently to assess wound healing, then the wound condition can be inspected, but the treatment time increases and healing process is disrupted
Solution Approach 1:
The integrated sensors enable continuous monitoring of wound conditions (temperature, pH, optical properties, conductivity) throughout the dressing wear period, eliminating the need for frequent dressing changes to assess healing progress and maintaining uninterrupted negative pressure therapy
Solution Approach 2:
The sensors provide real-time feedback on wound condition parameters, allowing clinicians to remotely assess healing progress and adjust treatment protocols without physically examining the wound, thereby reducing unnecessary dressing changes and treatment interruptions
3Quantity of substance
If absorbent dressings are used to full capacity, then fluid management is optimized, but the dressing cannot be inspected for wound status before becoming saturated
Solution Approach 1:
The sensors are integrated into the dressing structure before use, positioned to detect wound conditions through the absorbent layers, enabling preliminary assessment of wound status before the absorbent capacity is fully utilized
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
Provides continuous, real-time monitoring of wound conditions, allowing for timely adjustments in therapy and reducing the need for premature dressing changes, thereby enhancing wound healing assessment and treatment efficacy.
Implementation Method 1
The one or more sensors can include one or more temperature sensors
Implementation Method 2
The one or more sensors can include conductivity sensors
Implementation Method 3
The one or more sensors can include optical sensors, multispectral optical measurements sensors
Implementation Method 4
The one or more sensors can include pH sensors
Implementation Method 5
The one or more sensors can include pressure sensors
Implementation Method 6
The one or more sensors can include colorimetric sensors
Data Source
AI summary
In some embodiments, a wound dressing that incorporates a number of sensors or sensors separate from the wound dressing can be utilized in order to monitor characteristics of a wound as it heals or to identify one or more risk factors or conditions that may precipitate a wound. In some implementations, a wound dressing configured to be positioned in contact with a wound includes a substantially flexible substrate supporting one or more sensors. The one or more sensors can include temperature sensors, conductivity sensors, multispectral optical measurements sensors, sensors, pressure sensors, colorimetric sensors, optical sensors, ultraviolet (UV) sensors, or infrared (IR) sensors.