Wound Dressing Component Positioning and Stress Relief
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Solution Overview
Problem
Existing wound dressings for negative pressure wound therapy lack visualization and information about the wound condition beneath the dressing, leading to premature dressing changes and inefficient wound healing.
Innovation Solution
A wound dressing with a stretchable wound contact layer incorporating electronic components and connections, including sensors, to monitor wound conditions and provide real-time data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional wound dressings are used without sensors, then the dressing structure remains simple and cost-effective, but the clinician lacks real-time information about wound conditions leading to premature dressing changes
Solution Approach 1:
Electronic sensors and communication modules are introduced as intermediary components between the wound site and the clinician. These sensors act as mediators that detect wound parameters (moisture, pH, temperature) and transmit information to provide real-time monitoring, resolving the information loss problem without requiring direct visual inspection of the wound through the dressing.
Solution Approach 2:
The patent replaces the mechanical approach of physically removing and visually inspecting the dressing to assess wound healing with an electronic sensing system. Instead of mechanically opening or removing the dressing to see the wound condition, electronic sensors embedded in or with the dressing continuously monitor and transmit wound parameters, eliminating the need for premature dressing removal for inspection.
2Reliability
If the wound contact layer is made non-stretchable to support electronic components, then component stability is improved, but the dressing cannot accommodate wound expansion or movement
Solution Approach 1:
The patent applies different mechanical properties to different regions of the wound contact layer. The areas containing electronic components are made non-stretchable to ensure component stability and prevent dislodgement, while other regions of the contact layer maintain stretchability to accommodate wound expansion, movement, and conform to the patient's body contours. This localized differentiation resolves the contradiction between component stability and wound adaptability.
Solution Approach 2:
The wound contact layer is segmented into distinct functional zones: a non-stretchable region for housing and securing electronic components, and a stretchable region for maintaining contact with the wound and accommodating tissue movement. This segmentation allows each region to perform its specific function optimally without compromising the other.
Data Source
AI summary
Systems and methods for component stress relief are disclosed. In some embodiments, a wound dressing includes a substantially stretchable wound contact layer including a wound facing side and a non-wound facing side. The wound facing side or the non-wound facing side of the wound contact layer can support a plurality of electronic components and a plurality of electronic connections that connect at least some of the plurality of the electronic components. The wound facing side or the non-wound facing side of the wound contact layer can include a region of substantially non-stretchable material that supports at least one electronic component from the plurality of electronic components. The at least one electronic component can be attached to the wound contact layer with adhesive material. Such arrangement can securely position the at least one electronic component and limit the mechanical strain on the at least one electronic component supported by the region.