Wound Dressing Sealant Composition for Trimmable Negative Pressure Therapy
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Solution Overview
Problem
Existing wound dressings, particularly those used in negative pressure therapy, struggle to adequately conform to complex or irregularly shaped wounds such as vein harvest wounds and diabetic foot ulcers, limiting the application of advanced wound care therapies.
Innovation Solution
A dispensable sealant composition is applied to a composite wound dressing, allowing it to be trimmed and sealed to fit various wound shapes and sizes, ensuring compatibility with negative pressure therapy systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional composite TNP dressings are used, then they provide standardized wound coverage, but they cannot adequately conform to complex or irregularly shaped wounds
Solution Approach 1:
The dressing is designed with a trimmable backing layer that allows dynamic adaptation to different wound shapes and sizes. The backing layer can be cut to custom shapes, transforming a static standardized dressing into a dynamic solution that conforms to irregular wound topographies while maintaining structural integrity for TNP therapy application.
Solution Approach 2:
The dressing is segmented into distinct functional layers (backing layer, wound contact layer, transmission layer) that can be independently trimmed and configured. This segmentation allows the backing layer to be customized to match wound contours while preserving the integrity of the sealed wound interface and transmission pathways.
2Adaptability or versatility
If the dressing is trimmed to fit irregular wounds, then adaptability improves, but the sealing integrity may be compromised
Solution Approach 1:
The backing layer is pre-configured with a perimeter designed for sealing to intact skin. This preliminary sealing design ensures that when the dressing is trimmed to fit irregular wounds, the remaining perimeter maintains its sealing capability, preventing loss of negative pressure and maintaining the sterile field.
Solution Approach 2:
The backing layer functions as a flexible impermeable film that can be trimmed to conform to wound shapes while maintaining its barrier properties. The flexible nature allows it to adapt to irregular contours, and the impermeable characteristic ensures sealing integrity is preserved even after customization.
3Ease of manufacture
If standardized dressings are used, then manufacturing is simplified, but they cannot be applied to wounds of different shapes or sizes
Solution Approach 1:
The dressing design provides universality by combining a standardized multi-layer construction with a trimmable backing layer. This allows a single standardized dressing design to serve multiple wound types and shapes, eliminating the need to manufacture multiple specialized dressing variants while maintaining broad applicability.
Data Source
AI summary
Embodiments disclosed herein are directed to sealing compositions for negative pressure treatment systems and wound dressing systems, devices containing the same, apparatuses, uses and methods for creating a main wound dressing portion for use in wound care, more particularly for sealing a trimmable dressing, having a main dressing portion or cell in fluid (e.g., gas) communication with additional dressing portions or cells, for use in wound care, more particularly that may be used for the treatment of wounds. In particular, some embodiments are directed to compositions for improving the versatility of wound dressings for wounds of different shapes or sizes.