Frangible Wound Packing Material for Negative Pressure Therapy
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Solution Overview
Problem
Current negative pressure wound therapy (NPWT) systems face challenges in efficiently shaping wound packing materials to fit the wound, leading to prolonged closure times and potential complications such as secondary infections and incomplete tissue reapproximation, due to the need for manual cutting of foam blocks which can be time-consuming and risky.
Innovation Solution
A wound packing material with frangible regions defined by partial pre-cuts, allowing for easy manual removal of portions to customize the shape without tools, facilitating faster wound closure and improved healing by reducing the need for repetitive material replacement and enhancing fluid removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual cutting of foam blocks is used to shape wound packing material, then the material can be customized to fit the wound, but the process becomes time-consuming and increases risk of contamination
Solution Approach 1:
The foam block is pre-cut into multiple smaller portions with frangible regions between them, allowing the practitioner to easily separate and remove individual portions as needed. This segmentation enables quick customization of the wound packing material shape without requiring manual cutting tools or extensive time investment.
Solution Approach 2:
The foam block is pre-prepared with frangible regions and partial pre-cuts during manufacturing, creating ready-to-use portions that can be easily separated. This preliminary action eliminates the need for time-consuming manual cutting during the wound dressing procedure, allowing practitioners to quickly customize the material to fit the wound.
2Adaptability or versatility
If manual cutting of foam blocks is used to shape wound packing material, then the material can be customized to fit the wound, but the risk of contamination and accidents increases
Solution Approach 1:
The foam block is pre-divided into separate portions with frangible regions, eliminating the need for practitioners to use sharp cutting tools that could cause accidents or contaminate the wound. The pre-segmented portions can be safely handled and applied without the risks associated with manual cutting.
Solution Approach 2:
The harmful cutting operation is extracted from the wound dressing procedure. Instead of requiring practitioners to cut the foam at the point of care, the foam is pre-cut into portions with frangible regions during manufacturing, removing the source of potential contamination and accidents from the clinical setting.
3Manufacturing precision
If repetitive replacement of wound packing material is needed, then proper fitting can be achieved, but closure time is prolonged and healing is delayed
Solution Approach 1:
The foam is divided into multiple portions that can be easily added or removed to achieve the precise fit needed for the wound. This segmentation allows practitioners to customize the packing material configuration without requiring repetitive replacement of entire foam blocks, thereby reducing closure time while maintaining precision.
Solution Approach 2:
The foam is pre-divided into portions during manufacturing, allowing practitioners to quickly assemble the appropriate configuration for the wound. This preliminary preparation eliminates the need for repetitive replacement procedures, as the correct amount and shape of packing material can be achieved in a single application.
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 customizable wound packing material with frangible regions enables quicker shaping and application, potentially reducing closure times and improving wound healing by allowing for precise fitting and efficient fluid management during NPWT.
Implementation Method 1
The wound cavity or surface is filled or covered with a material that allows the transmission of a partial vacuum (i.e. does not completely collapse) to the wound bed when a negative pressure is applied to the wound area
Implementation Method 2
The wound cavity, enclosed by the drape and tissue, contracts under the force of atmospheric pressure
Implementation Method 3
The packing material mechanically supports the tissue to which it is applied, and also allows the free flow of fluids away from the site when a vacuum is applied
Implementation Method 4
The fluid is transmitted through the packing material and up the vacuum tube to a collection receptacle positioned between the distal end of the tube and the vacuum source
Data Source
AI summary
Some embodiments of the present disclosure relate 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 wound packing material can be shaped to partially or fully surround a secondary wound packing member, such as a stabilizing structure. Some embodiments further relate to methods of manufacturing the wound packing material, and to methods of its use.