Integrated Multi-Layer Wound Dressing for Cut-Free Application
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Solution Overview
Problem
Conventional negative-pressure wound therapy dressings require assembly and cutting to fit the wound, leading to irregular pieces that can leave foreign materials and increase healing complications.
Innovation Solution
A multi-layered dressing system that integrates a port assembly, sealing layer, and irrigation network into a unified dressing assembly, allowing for quick application and customization to fit the wound without separate assembly, featuring a flexible irrigation network and adhesive sealing layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional wound dressings are cut to size to fit the wound, then the dressing can be customized to fit the wound contours, but the cutting process creates irregular pieces that may leave foreign materials in the wound and increase healing complications
Solution Approach 1:
The dressing is pre-formed with a contoured shape that matches typical wound geometries before application. This preliminary shaping eliminates the need for cutting at the time of application, thereby preventing foreign material retention while still providing customization for different wound sizes and shapes.
Solution Approach 2:
The dressing material is changed from conventional rigid or semi-rigid materials that require cutting to a highly flexible, conformable material that can be easily shaped and molded to fit various wound contours without cutting, thus eliminating the foreign material risk.
2Adaptability or versatility
If conventional wound dressings are assembled from multiple components, then the dressing can be customized and adjusted, but the assembly process increases preparation time and complexity
Solution Approach 1:
Multiple separate components (dressing layer, adhesive layer, barrier layer) are merged into a single integrated pre-assembled unit. This combination maintains the functional benefits of each component while eliminating the time-consuming assembly process, allowing quick application without sacrificing customization capabilities.
Solution Approach 2:
The dressing components are pre-assembled and pre-configured during manufacturing in the optimal arrangement. This preliminary assembly eliminates the need for time-consuming component assembly at the point of care, reducing preparation time while maintaining the ability to select appropriate dressing sizes and types for different wounds.
3Strength
If conventional wound dressings use rigid or difficult-to-cut materials, then the dressing maintains structural integrity, but the material is not easy to cut and results in multiple irregular pieces
Solution Approach 1:
The material properties are changed from rigid or semi-rigid materials to highly flexible, soft, and conformable materials that can be easily cut, molded, and shaped. This parameter change maintains sufficient structural integrity for wound coverage while dramatically improving ease of cutting and customization.
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
Reduces preparation time, minimizes wound irritation, and ensures consistent wound treatment by providing a flexible, customizable, and efficient delivery of negative pressure and irrigation, while reducing the risk of foreign material retention.
Implementation Method 1
The gel adhesive can be disposed at one or more peripheral locations on the film
Implementation Method 2
The system can be configured to apply sub-atmospheric (i.e., negative pressure) suction to the wound area
Implementation Method 3
the system may be configured to facilitate irrigation of the surrounding tissue along the periphery of the wound by delivering saline solution or medicaments
Implementation Method 4
The perforated layer can be coupled to the second surface of the sealing layer and define a plurality of pores for fluid flow toward the hub
Data Source
AI summary
Some embodiments of a multi-layered dressing system for sealed wound treatment include various components used for sealing, dressing, suctioning and irrigating that are coupled together as a single, composite unit.