Wound Packing Material with Frangible Regions for NPWT
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Solution Overview
Problem
Current wound packing materials for negative pressure wound therapy (NPWT) require complex, time-consuming, and potentially hazardous manual shaping to fit the wound, which hinders effective and widespread use.
Innovation Solution
A porous wound packing material with frangible regions, defined by partial pre-cuts, allowing for easy manual removal of portions to shape the material without the need for additional tools, enhancing customization and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If manual shaping of foam packing material is performed using cutting tools, then the material can be shaped to fit the wound, but the process becomes complex, time-consuming, and potentially hazardous with risk of contamination
Solution Approach 1:
The foam packing material is pre-cut with frangible regions (weakened zones) during manufacturing, allowing the practitioner to easily separate portions by hand without requiring cutting tools. This preliminary preparation enables quick customization of the packing shape to fit different wound configurations while eliminating the time-consuming and hazardous manual cutting process
Solution Approach 2:
The foam block is divided into multiple separable portions through frangible regions that allow easy manual separation. This segmentation enables the practitioner to remove only the necessary portions for the specific wound size and shape, reducing preparation time and avoiding the need for complex cutting operations
2Adaptability or versatility
If manual shaping with cutting tools is used, then the packing can be customized, but the complexity and hazard of the procedure increases
Solution Approach 1:
The frangible regions are pre-formed in the foam material during manufacturing, creating predetermined separation zones that guide the practitioner in easily dividing the foam into appropriate portions. This eliminates the need for cutting tools and complex shaping procedures while maintaining full adaptability to different wound configurations
Solution Approach 2:
The foam material is designed to be self-sufficient for shaping purposes through its frangible regions, allowing the practitioner to easily separate portions by hand without requiring additional cutting tools or equipment. The material essentially shapes itself through manual separation rather than requiring external cutting instruments
3Shape
If manual cutting is performed, then the packing material can be shaped, but the risk of contamination and accidents increases
Solution Approach 1:
The frangible regions are pre-formed in the foam material during manufacturing under controlled conditions, eliminating the need for practitioners to perform manual cutting operations that could introduce contamination. The pre-prepared separation zones allow safe, tool-free portion removal that maintains sterility
Solution Approach 2:
The hazardous cutting operation is completely removed from the procedure. Instead of requiring practitioners to use scalpels or knives that could contaminate the wound or cause accidents, the foam is designed with frangible regions that allow safe, tool-free separation of portions by hand
Data Source
AI summary
The present invention relates to a wound packing material, suitable for use in negative pressure wound therapy, comprising a body of a porous material, the body comprising frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body. The invention further relates to methods of manufacturing the wound packing material, and to methods of its use.