Composite NPWT Dressing with Affixed Packing Member
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The application of individual packing members and cover layers in negative pressure wound therapy (NPWT) systems is time-consuming and labor-intensive, hindering efficient wound dressing application.
Innovation Solution
A composite wound dressing with a packing member affixed to a cover layer, featuring a vacuum port for fluid communication and a packing member designed with open-celled foam or elongated fingers to facilitate easy application and maintain negative pressure, while the cellulose solution provides rigidity for handling and pliability for wound contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If packing members and cover layers are applied individually to a wound, then each component can be optimized for its specific function, but the application process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent combines the packing member and cover layer into a single composite dressing assembly where the packing member is affixed to the cover layer. This merging allows the entire assembly to be applied to the wound as one unit, eliminating the need for separate application steps and reducing labor intensity while maintaining the functional optimization of each component.
2Productivity
If a composite dressing with affixed packing member is used, then application time is reduced, but the device complexity increases
Solution Approach 1:
The composite dressing is designed as a segmented assembly with distinct functional components (packing member, cover layer, vacuum port) that are affixed together in a modular fashion. This segmentation allows each component to be optimized independently while maintaining overall simplicity through standardized connection methods and clear functional separation.
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 composite dressing simplifies the application process, promotes efficient fluid transport, and supports wound healing by maintaining a negative pressure reservoir, reducing bacterial growth and enhancing granulation tissue formation.
Implementation Method 1
The packing member serves to support the cover layer and also to absorb and/or promote fluid transport away from the wound bed
Implementation Method 2
Application of a reduced pressure, e.g. sub-atmospheric, to a localized reservoir over a wound has been found to assist in closing the wound. The reduced pressure may be effective to promote blood flow to the area, to stimulate the formation of granulation tissue
Implementation Method 3
The vacuum port is affixed to the cover layer, and establishes a substantially fluid tight seal about the opening in the cover layer
Data Source
AI summary
A wound dressing suitable for use in negative pressure wound therapy system includes a cover layer adapted to establish a reservoir over a wound in which a negative pressure may be maintained. The cover layer includes an opening therein through which atmospheric gasses and wound exudates may pass through the cover layer. A vacuum port is affixed to the cover layer, and establishes a substantially fluid tight seal about the opening in the cover layer. The vacuum port includes a hollow interior in fluid communication with the opening in the cover layer and a connector to facilitate connection to a vacuum source. A packing member is affixed to the cover layer, to provide a wound dressing that may be applied in a single step process. The packing member is adapted to fill the wound and support the cover layer when a negative pressure is applied to the reservoir.