Negative Pressure Wound Therapy Oxygen Integration
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Solution Overview
Problem
Current negative-pressure wound therapy systems lack efficient integration of oxygen delivery and pressure control to enhance tissue growth and healing, particularly in maintaining optimal oxygen concentrations and pressure levels within the wound environment.
Innovation Solution
A therapy system comprising a negative-pressure source, a hyperoxic fluid source, and a controller that maintains a sealed space at negative pressure while delivering hyperoxic fluid to the tissue site, utilizing a wound dressing with a manifold interface layer to distribute pressure and fluids effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If negative pressure is applied to the wound site, then tissue growth and granulation tissue development are enhanced, but oxygen concentration control becomes difficult
Solution Approach 1:
The system merges negative pressure delivery and oxygen delivery into a single integrated wound dressing assembly. The manifold interface layer simultaneously distributes negative pressure and delivers oxygen to the wound site, eliminating the need for separate systems and enabling coordinated control of both parameters.
Solution Approach 2:
The wound dressing is designed as a multi-functional device that performs multiple functions: applying negative pressure, delivering oxygen, and distributing fluids. The manifold interface layer acts as a universal distribution system that handles both gas and fluid pathways through a single integrated structure.
2Productivity
If oxygen is delivered to the wound site, then tissue healing is accelerated, but pressure control stability deteriorates
Solution Approach 1:
The system combines oxygen delivery and pressure control functions within the same sealed environment. The controller simultaneously manages both oxygen flow and negative pressure levels, ensuring that oxygen delivery does not compromise pressure stability and vice versa.
Solution Approach 2:
The controller monitors and adjusts both oxygen delivery and pressure levels in real-time, maintaining stable pressure conditions while delivering oxygen therapy. The integrated control system coordinates the operation of oxygen sources and negative pressure sources to prevent interference between the two functions.
3Reliability
If separate systems are used for negative pressure and oxygen delivery, then each function can be optimized independently, but device complexity increases
Solution Approach 1:
The patent integrates negative pressure delivery and oxygen delivery into a single wound dressing assembly with a unified manifold interface layer. This merging reduces the number of separate components and simplifies the overall system architecture while maintaining the ability to independently control each function through a single controller.
4Stability of the object's composition
If a sealed space is created around the wound, then pressure control is improved, but fluid distribution becomes challenging
Solution Approach 1:
The manifold interface layer utilizes porous or permeable materials that allow fluid distribution throughout the sealed space while maintaining pressure control. The porous structure enables uniform fluid delivery to the wound site through the sealed environment without compromising the integrity of the seal or the stability of negative pressure.
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
This system enhances tissue growth by maintaining optimal oxygen concentrations and pressure levels, improving wound healing by promoting granulation tissue development and reducing healing times through controlled delivery of negative pressure and hyperoxic fluid.
Implementation Method 1
reducing pressure in proximity to a tissue site can augment and accelerate growth of new tissue at the tissue site
Implementation Method 2
delivering a hyperoxic fluid to the sealed space while maintaining the sealed space at a negative pressure
Data Source
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AI summary
In an example is a system for providing treatment to a tissue site. The system may include a tissue interface for transporting fluid to the tissue site. The system may further include a cover for providing a sealed space including the tissue interface. The system may further include a negative-pressure source fluidly coupled to the tissue interface and providing negative pressure. The system may further include a hyperoxic fluid source fluidly coupled to the tissue interface and providing a hyperoxic fluid. The system may further include a controller for controlling the negative pressure and the hyperoxic fluid so as to maintain the sealed space at a negative pressure while the hyperoxic fluid is provided to the sealed space.