Anatomical Foot Dressing with Fluid Restrictions
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Solution Overview
Problem
Current tissue treatment systems for negative-pressure therapy and instillation lack effective designs for wound care, particularly in complex anatomical areas like the foot, requiring improved systems for enhanced wound healing and reduced healing times.
Innovation Solution
A dressing system comprising a tissue interface with a hindfoot section, midfoot section, forefoot section, and forefoot extension, a fluid control layer with fluid restrictions, and a manifold, combined with a non-porous cover for negative-pressure therapy and instillation, which includes a gel layer with apertures aligned with fluid restrictions for enhanced fluid management and tissue interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a standard dressing design is used for foot wound treatment, then the application process is simple, but the dressing cannot effectively adapt to complex anatomical structures of the foot
Solution Approach 1:
The dressing is divided into multiple functional sections: a hindfoot section with heel flaps for the heel area, a midfoot section, a forefoot section, and a forefoot extension. Each section is designed to conform to specific anatomical regions of the foot, enabling effective adaptation to complex foot anatomy while maintaining manageable complexity through modular design
Solution Approach 2:
The forefoot extension is configured to fold over the forefoot section, and the heel flaps are designed to wrap around the heel. This nested folding structure allows the dressing to adapt to the three-dimensional contours of the foot while maintaining a compact form and manageable complexity
2Productivity
If fluid management is simplified in the dressing, then the device complexity is reduced, but fluid control and wound cleansing effectiveness deteriorate
Solution Approach 1:
The fluid control layer incorporates multiple fluid restrictions at specific locations corresponding to different wound areas. Each fluid restriction can be independently adjusted to control fluid flow rates to specific wound regions, enabling localized fluid management that enhances wound cleansing effectiveness while maintaining overall system functionality
Solution Approach 2:
The gel layer with apertures serves as an intermediary between the fluid control layer and the wound bed. It distributes fluid evenly across the wound surface, enhances fluid management through its gel properties, and improves tissue interaction while bridging the complex fluid control system with the biological wound environment
3Reliability
If the dressing is designed for comprehensive foot coverage, then wound healing effectiveness is improved, but the application process becomes more complex requiring extensive training
Solution Approach 1:
The dressing components are pre-configured and pre-assembled in the correct anatomical sequence before application. The hindfoot section, midfoot section, forefoot section, and forefoot extension are already positioned and connected in the proper configuration, allowing caregivers to simply apply the pre-assembled dressing without requiring extensive training on complex assembly procedures
Solution Approach 2:
The dressing is designed to be self-aligning and self-adjusting during application. The anatomical sections and folded extensions naturally conform to the foot's shape upon application, reducing the need for complex manual positioning and adjustment by the caregiver while ensuring comprehensive coverage and therapeutic effectiveness
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 provides a sealed therapeutic environment for improved wound healing by enhancing fluid management and tissue interaction, reducing healing times and minimizing tissue trauma, while simplifying application and reducing the need for extensive customization and caregiver training.
Implementation Method 1
a gel layer disposed adjacent to the fluid control layer opposite the manifold, with the gel layer having a plurality of apertures at least partially aligned with the fluid restrictions of the fluid control layer
Implementation Method 2
reducing pressure in proximity to a tissue site can augment and accelerate growth of new tissue at the tissue site... Negative-pressure therapy may provide a number of benefits
Data Source
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AI summary
Disclosed dressing embodiments may include a tissue interface and a cover, with the tissue interface shaped anatomically for interaction with a specific anatomical region, such as a foot. Such tissue interface embodiments would typically comprise a manifold and a fluid control layer having a plurality of fluid restrictions, with the manifold disposed in a stacked relationship with the fluid control layer. Some embodiments of the tissue interface might also include a gel layer in a stacked relationship with the fluid control layer, opposite the manifold. For foot dressings, tissue interface embodiments may be shaped with a hindfoot section, an underfoot section, and a forefoot extension section.