Abdominal Wound Dressing With Application Pockets
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Solution Overview
Problem
Existing wound dressings for negative-pressure wound therapy in the abdominal region are difficult to apply, tend to adhere to the wound bed, and lack sufficient drainage capacity, making them cumbersome to use and replace.
Innovation Solution
A wound dressing with a flexible film having multiple pockets on the side facing away from the wound, allowing for easier application and placement by inserting a spatula or finger, and featuring a permeable design with conical or cylindrical openings to enhance fluid drainage, preventing adhesion to the wound bed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wound dressing is applied directly to the wound bed, then it provides coverage and protection, but it adheres to the wound bed causing trauma during removal
Solution Approach 1:
The wound dressing features a first flexible film with a first side for wound contact and a second side for the opposite surface. The film has selective permeability properties with conical or cylindrical openings that allow fluid passage while maintaining a barrier function. This local differentiation of properties between the two sides and across the film structure enables effective wound coverage while preventing harmful adhesion through the controlled opening geometry and material selection
2Object-affected harmful factors
If the wound dressing is made impermeable to prevent adhesion, then it reduces tissue growth into the dressing, but it lacks sufficient drainage capacity for wound fluids
Solution Approach 1:
The first flexible film incorporates a multiplicity of conical or cylindrical openings throughout its structure. These openings create a porous architecture that permits wound fluids to pass through the film while the overall film structure and opening configuration prevent tissue ingrowth. The porous design with specific geometry balances drainage productivity with adhesion prevention
3Ease of operation
If the wound dressing is applied without assistance tools, then the application process is simple, but it is difficult to position and lay out uniformly on the wound bed
Solution Approach 1:
A surgical instrument with a spatula-like end piece serves as an intermediary tool to facilitate wound dressing application. The instrument enables precise positioning and uniform lay-out of the dressing on the wound bed by providing mechanical assistance during the application process, bridging the gap between simple operation and precise positioning
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 wound dressing facilitates easy and atraumatic application, reduces tissue growth into the dressing, and ensures effective drainage of wound fluids, improving user friendliness and therapeutic outcomes.
Implementation Method 1
The first flexible film has a multiplicity of openings, which, to the greatest possible extent, have a conical or cylindrical shape and have a three-dimensional shape
Implementation Method 2
Devices for negative-pressure wound therapy and wound dressings as components of such devices are known from the prior art
Data Source
AI summary
The invention relates to a wound dressing and to a device for use in negative-pressure wound therapy, in particular for wounds in the abdominal region, and also to methods for producing the device. The wound dressing includes at least one flexible film for application onto the wound bed, more particularly onto exposed internal organs or onto the greater omentum, and furthermore at least one pocket, which is present on the side of the wound dressing that faces away from the wound during use and which simplifies the uniform application and placement of the wound dressing on the wound bed.