Multi-Size Aperture Contact Layer for Negative-Pressure Therapy
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Solution Overview
Problem
Existing negative-pressure therapy systems lack versatility and effectiveness in treating diverse tissue sites, particularly in terms of aperture size and distribution, which can impact the efficacy of tissue growth and healing.
Innovation Solution
The development of a contact layer with configurable apertures of varying diameters (2 mm to 6 mm and 8 mm to 15 mm) to enhance tissue engagement and fluid management, combined with a compressible material for adaptability to different tissue types and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single aperture size is used in negative-pressure therapy, then the device structure is simple, but the adaptability to different tissue sites and wound types is limited
Solution Approach 1:
The contact layer is segmented into multiple aperture groups, where each group contains apertures of a specific size (first size, second size, third size). This segmentation allows the system to handle different tissue types and wound characteristics through selective aperture engagement, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
Different regions of the contact layer are equipped with apertures of different sizes tailored to specific local requirements. Smaller apertures can engage with delicate tissue while larger apertures accommodate more robust tissue structures, enabling localized optimization of therapy delivery across the treatment area.
2Reliability
If multiple aperture sizes are implemented, then tissue engagement and fluid management are enhanced, but the manufacturing complexity increases
Solution Approach 1:
The contact layer is pre-manufactured with multiple aperture sizes already integrated into its structure. This preliminary configuration eliminates the need for complex post-manufacturing adjustments or assemblies, allowing healthcare providers to simply select and apply the appropriate contact layer for their specific therapy needs, thereby maintaining manufacturing feasibility while achieving therapeutic reliability.
3Productivity
If apertures are configured for optimal tissue engagement, then granulation tissue development is promoted, but fluid flow control becomes more complex
Solution Approach 1:
The multi-sized aperture configuration enables the system to self-regulate fluid flow based on the physical properties of the tissue and wound bed. Smaller apertures provide finer control for delicate fluid management while larger apertures facilitate greater flow when needed, allowing the structure itself to perform the fluid management function without additional complex control mechanisms.
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 solution enhances tissue engagement and fluid management, promoting granulation tissue development and reducing healing times by optimizing pressure distribution and fluid exchange.
Implementation Method 1
a contact layer formed from a compressible material
Implementation Method 2
reducing pressure in proximity to a tissue site can augment and accelerate growth of new tissue
Implementation Method 3
Negative-pressure therapy may provide a number of benefits, including migration of epithelial and subcutaneous tissues, improved blood flow, and micro-deformation of tissue at a wound site
Data Source
AI summary
In one example embodiment, an apparatus for treating a tissue site may include a contact layer formed from a compressible material. The contact layer may include a plurality of apertures extending at least partially through the contact layer. The contact layer may be configurable such that at least a portion of the apertures include a first plurality of orifices having a diameter in a first diameter range and such that at least a portion of the apertures include a second plurality of orifices having a diameter in a second diameter range. The first diameter range may be from about 2 mm to about 6 mm. The second diameter range may be from about 8 mm to about 15 mm. The apparatus may include a cover configured to form a sealed space including the contact layer and the tissue site.