Wound Healing System with Controlled Low Oxygen Environment
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Solution Overview
Problem
Current wound healing technologies often result in unsightly scars due to excessive granulation tissue and collagen formation, which can lead to hypertrophic and keloid scars, and existing oxygen therapy systems either fail to control oxygen levels effectively or do not address scarring issues.
Innovation Solution
A system that actively reduces the oxygen concentration within an enclosed wound environment to specific levels between 1 and 16 volume percent, maintaining it below a second level and above a third level, to mimic venous blood oxygen levels, thereby reducing scar formation by controlling granulation tissue and collagen production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If oxygen therapy is applied to wounds to promote healing, then wound healing is improved, but scarring increases due to excessive granulation tissue and collagen formation
Solution Approach 1:
The patent applies parameter changes by precisely controlling the oxygen concentration parameter within the wound environment. Instead of using normal atmospheric oxygen levels or hyperoxic therapy, the system maintains oxygen concentration at specific reduced levels (between 1 and 16 volume percent, preferably between 2 and 10 volume percent) to optimize healing while minimizing scarring. This parameter control directly addresses the contradiction by finding the optimal oxygen level that promotes healing without excessive collagen and granulation tissue formation.
Solution Approach 2:
The patent implements feedback control through oxygen sensors that continuously monitor the oxygen concentration within the wound environment and adjust the oxygen supply accordingly. The system includes control means that receive signals from oxygen sensors and modulate the oxygen concentration to maintain it within the desired range, ensuring consistent healing conditions while preventing scarring. This feedback mechanism allows dynamic adaptation to changing wound conditions.
2Object-generated harmful factors
If oxygen concentration is reduced to minimize scarring, then scar formation is reduced, but wound healing may be compromised
Solution Approach 1:
The patent resolves this contradiction by identifying and maintaining the optimal parameter range for oxygen concentration. Through controlled reduction of oxygen levels to specific ranges (1-16 volume percent), the system creates conditions that favor minimal scarring while preserving adequate healing capacity. This parameter optimization ensures that oxygen is reduced enough to minimize collagen overproduction but maintained high enough to support essential wound repair processes.
Solution Approach 2:
The patent replaces conventional mechanical oxygen delivery systems with a controlled gas environment system. Instead of simply adding oxygen or using vacuum, the system substitutes a controlled low-oxygen gas atmosphere that mimics venous blood oxygen levels. This substitution allows precise control over the chemical environment without the mechanical complexities of active oxygen delivery or removal systems.
3Object-generated harmful factors
If controlled gas environment is created over wound, then oxygen levels can be controlled to reduce scarring, but system complexity increases
Solution Approach 1:
The patent applies universality by designing a controlled gas environment system that serves multiple functions simultaneously. The same enclosed volume creation means and gas delivery system used to control oxygen levels also provides a barrier to external contaminants, maintains a controlled microenvironment, and enables monitoring. This multi-functionality reduces the need for separate systems for each function, thereby managing complexity while achieving comprehensive wound management.
Solution Approach 2:
The patent introduces an intermediary gas delivery and control system that mediates between the external environment and the wound. This intermediary layer (the controlled gas environment system) simplifies the overall approach by providing a single integrated solution that handles oxygen control, contamination prevention, and environmental monitoring, rather than requiring multiple separate interventions.
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 reduces scarring by maintaining a healthy wound environment with controlled oxygen levels, potentially minimizing the formation of hypertrophic and keloid scars by reducing oxygen free radicals and promoting efficient wound healing.
Implementation Method 1
means for actively reducing the oxygen concentration within the enclosed volume at the surface of the wound to a first oxygen concentration level while maintaining an environment within the enclosed volume which is healthy for wound healing, means for ensuring that the oxygen concentration of the gas composition of the gas within the enclosed volume at the surface of the wound is maintained below a second oxygen concentration level and above a third oxygen concentration level
Implementation Method 2
potentially minimizing the formation of hypertrophic and keloid scars by reducing oxygen free radicals and promoting efficient wound healing
Data Source
AI summary
A system for reduced scarring of wounds; said system comprising: means (1) for creating an enclosed volume (3) over a wound site (2). The system further comprises: means (6, 10, 11, 12) for actively reducing the oxygen concentration within the enclosed volume at the surface of the wound to a first oxygen concentration level while maintaining an environment within the enclosed volume which is healthy for wound healing, means (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14) for ensuring that the oxygen concentration of the gas composition of the gas within the enclosed volume at the surface of the wound is maintained below a second oxygen concentration level and above a third oxygen concentration level, and where said system is arranged such that said first, second and third oxygen concentration levels are between 1 and 16 volume percent.