Wound Dressing with Oxygen Generation and Negative Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional oxygen-based wound therapies for topical applications are limited by short treatment periods, high costs, and reduced patient mobility due to the need for expensive equipment and proprietary dressings, while also requiring investment in hyperbaric oxygen chambers and animal-derived hemoglobin.
Innovation Solution
A wound dressing system that combines oxygen generation using water-sorbent materials and a gas-occlusive layer to deliver oxygen directly to the wound site, integrated with a negative pressure source for enhanced wound healing, featuring a manifold for gas passageways, an oxygen-generating material, and a gas-occlusive layer to maintain oxygen concentration and prevent escape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional oxygen-based therapies (hyperbaric oxygen chambers, oxygen concentrating devices) are used, then therapeutic oxygen can be delivered to improve wound healing, but treatment periods are short and patient mobility is reduced
Solution Approach 1:
The wound dressing system generates oxygen autonomously through oxygen-generating materials (such as sodium percarbonate or hydrogen peroxide-based compounds) that react with moisture from the wound or surrounding tissue to release oxygen continuously. This eliminates the need for external hyperbaric oxygen chambers and allows patients to remain mobile while receiving continuous therapeutic oxygen throughout the wound healing process.
Solution Approach 2:
The system changes the delivery parameters of oxygen therapy by transitioning from intermittent, equipment-dependent delivery (hyperbaric chambers) to continuous, self-contained delivery through the wound dressing. The oxygen-generating materials maintain stable oxygen release over extended periods, transforming the temporal parameter of oxygen delivery from short bursts to prolonged continuous supply.
2Reliability
If traditional oxygen-based therapies are used, then therapeutic oxygen can be delivered, but expensive equipment and proprietary dressings are required
Solution Approach 1:
The invention extracts the oxygen generation function from complex external equipment (hyperbaric oxygen chambers, oxygen concentrating devices) and integrates it directly into the wound dressing itself. The oxygen-generating materials are incorporated within the dressing structure, eliminating the need for separate expensive equipment and reducing overall system complexity while maintaining therapeutic effectiveness.
Solution Approach 2:
The system replaces expensive, complex, and reusable equipment with affordable, disposable wound dressings containing oxygen-generating materials. The dressing is designed as a single-use or limited-use product that provides therapeutic oxygen during the healing period, eliminating the need for costly equipment investment and reducing long-term costs for patients and healthcare systems.
3Reliability
If traditional oxygen-based therapies are used, then oxygen can be delivered to the wound site, but patient mobility is reduced
Solution Approach 1:
The wound dressing system is self-contained and portable, generating oxygen autonomously without requiring connection to external hyperbaric oxygen chambers or oxygen concentrating devices. This independence allows patients to move freely, transfer between surfaces, and perform daily activities while continuously receiving therapeutic oxygen through the dressing applied directly to the wound site.
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 system effectively delivers high-purity oxygen to the wound site, improving healing by maintaining an oxygen concentration of at least 80% within the dressing, facilitating longer treatment periods with improved patient mobility and reduced costs.
Implementation Method 1
an oxygen-generating material configured to release oxygen when exposed to water
Implementation Method 2
a gas-occlusive layer configured to be disposed over the manifold and the oxygen-generating material... the gas-occlusive layer limits escape of oxygen from the interior volume
Implementation Method 3
a port coupled to the gas-occlusive layer and configured to be coupled to a negative pressure source
Data Source
AI summary
This disclosure includes negative pressure wound therapy dressings with local oxygen generation for topical wound therapy. The dressings (18) for facilitating delivery of oxygen and application of negative pressure to target tissue include a manifold (46) that defines a plurality of gas passageways (50) and is configured to allow communication of oxygen to the target tissue; an oxygen-generating material (146) that is configured to release oxygen when exposed to water; a gas-occlusive layer (74) configured to be disposed over the manifold and the oxygen-generating material and coupled to tissue surrounding the target tissue such that an interior volume containing the manifold and the oxygen-generating material is defined between the gas-occlusive layer and the target tissue; and a port (94) coupled to the gas-occlusive layer and configured to be coupled to a negative pressure source.