Wound Dressing with Viewing Portals for Tissue Visibility
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Solution Overview
Problem
Existing wound dressings often obscure underlying tissue, making it difficult for clinicians to assess the condition of the tissue site, which can hinder effective wound monitoring and treatment.
Innovation Solution
The development of wound dressings with transparent or translucent layers and strategically placed through holes allows for visibility of the underlying tissue, combined with negative pressure wound therapy systems that include a conduit for negative pressure application and a fluid collection canister to manage wound exudate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wound dressing is used to cover a wound site, then the wound is protected and therapy can be applied, but the underlying tissue becomes obscured and difficult to assess
Solution Approach 1:
The wound dressing is divided into multiple functional layers: a transparent cover layer for visibility, an absorbent layer for fluid management, and a transmission layer with through holes for negative pressure application. Each layer performs a specific function while allowing tissue assessment through the transparent portions.
Solution Approach 2:
The transparent cover layer acts as an intermediary between the clinician and the wound tissue, allowing visual assessment while maintaining the protective barrier. The layer includes strategically placed through holes that serve as intermediaries for negative pressure transmission without compromising visibility.
2Reliability
If traditional opaque wound dressings are used, then wound protection is maintained, but continuous monitoring of tissue condition is hindered
Solution Approach 1:
The cover layer is made transparent or translucent, allowing clinicians to visually assess tissue color, perfusion, and condition through the dressing without removing it. This enables continuous monitoring and eliminates the need for frequent dressing removals.
3Productivity
If negative pressure is applied through the wound dressing, then wound healing is promoted, but suction blisters may form in the tissue
Solution Approach 1:
The transmission layer contains through holes of specific sizes and distributions that are optimized for negative pressure transmission. The holes are sized to allow adequate suction while preventing tissue ingrowth and suction blister formation. Different regions of the dressing have different hole configurations tailored to local wound characteristics.
Solution Approach 2:
The transmission layer and absorbent layer incorporate porous structures and through holes that allow controlled passage of negative pressure. The porous design distributes suction forces evenly across the wound bed, preventing localized stress concentrations that cause suction blisters.
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
Enhances tissue visibility, facilitating better wound assessment and treatment by allowing clinicians to monitor tissue health and changes, while the negative pressure therapy promotes healing by reducing edema and infection risk.
Implementation Method 1
a conduit connected to the port configured to supply negative pressure to the wound dressing
Implementation Method 2
The one or more lower layers may comprise one or more transparent or translucent layers
Implementation Method 3
an absorbent layer comprising one or more through holes extending vertically through a thickness of the absorbent layer
Data Source
Figure 1
Figure 2A~2B
Figure 2C~2D
AI summary
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising a number of viewing portals that facilitate observation of wound tissue or healthy skin underlying the wound dressing. Some embodiments of the viewing portals are provided by forming through holes in internal dressing layers including absorbent material and transmission material, optionally by providing a plug material within the through holes, and by providing translucent or transparent cover layer and tissue contact layer materials.