Hyperbaric Dressing Oxygen Delivery and Exudate Removal
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Solution Overview
Problem
Current methods for supplying oxygen to wounds, such as hyperbaric chambers, are expensive, difficult to sterilize, and limit patient mobility, while also exposing large areas of normal tissue to high oxygen concentrations, necessitating a local and cost-effective solution for wound oxygenation.
Innovation Solution
A hyperbaric dressing comprising two layers with a gas-permeable and impermeable structure, allowing oxygen to flow to the wound while exudate can flow in the opposite direction, using a self-adhesive layer for application and a portable gas delivery system, such as an oxygen generator, to maintain hyperbaric pressure and collect exudate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealed container is used to supply oxygen to a wound, then oxygen pressure can be controlled and oxygen can be supplied to the wound, but the device becomes expensive, difficult to sterilize, and limits patient mobility
Solution Approach 1:
The invention divides the oxygen delivery system into a wearable hyperbaric dressing unit that can be detached from the patient's body, allowing the complex pressurization mechanism to be separated from the patient care function. The dressing itself is a simplified component that can be easily sterilized or disposed of, while the complex oxygen generation and pressurization systems remain in a portable external unit.
Solution Approach 2:
The hyperbaric dressing is designed as a disposable or easily replaceable component, eliminating the need for expensive, complex sterilization procedures. The dressing can be discarded after use, avoiding the need to sterilize the entire oxygen delivery system, thereby reducing costs and simplifying the overall device requirements.
2Reliability
If a sealed container is used to supply oxygen to a wound, then oxygen can be supplied to the wound, but large areas of normal tissue are subjected to high concentrations of oxygen
Solution Approach 1:
The hyperbaric dressing is designed to provide localized oxygen delivery directly to the wound area through controlled permeation pathways. The oxygen pressure is concentrated at the wound interface where it is needed, while normal surrounding tissue is protected from excessive oxygen exposure. This localized delivery mechanism eliminates the harmful effects of whole-body hyperoxia while maintaining effective wound oxygenation.
3Reliability
If the entire affected limb is placed within a container, then oxygen pressure can be controlled, but the patient's mobility is limited
Solution Approach 1:
The invention transitions from a static, rigid sealed container to a dynamic, flexible hyperbaric dressing that can accommodate patient movement. The dressing maintains oxygen pressure control through flexible membranes and controlled permeation pathways that allow the patient to move freely while the oxygen pressure is maintained at the wound site. This dynamic design enables mobility without sacrificing oxygen delivery reliability.
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
The dressing effectively delivers oxygen to wounds while allowing exudate removal, reducing scarring and promoting healing without the drawbacks of existing methods, offering greater mobility and ease of use with lower costs and no need for sterilization.
Implementation Method 1
the first layer is associated with the second layer to allow the fluid to flow in one direction through the second layer
Implementation Method 2
to allow another fluid, such as a liquid, to flow in the opposite direction through the second and first layers
Data Source
AI summary
A hyperbaric dressing has a fluid impermeable sheet and a fluid permeable layer with a sheet of porous material positioned between these two layers with passageways to permit fluid to flow out of the dressing.