Integrated Negative Pressure Wound Dressing Electronics
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Solution Overview
Problem
Existing negative pressure wound therapy (NPWT) systems require a remote negative pressure source, which can be cumbersome and difficult to position comfortably and conveniently on the patient, especially when wound exudate makes it challenging to incorporate electronic components.
Innovation Solution
The integration of a negative pressure source and electronic components directly into a wound dressing, where the electronics assembly is positioned between the wound contact layer and the cover layer, allowing for an integral wound dressing structure that applies both the dressing and the negative pressure simultaneously.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a remote negative pressure source is used, then the negative pressure can be applied to the wound, but the system becomes cumbersome and difficult to position comfortably on the patient
Solution Approach 1:
The patent integrates the negative pressure source directly into the wound dressing structure, merging previously separate components (remote pump, tubing, and dressing) into a single integrated unit. This eliminates the need for external pumps and tubing, making the system easier to position and apply to the patient while maintaining the necessary negative pressure function.
2Adaptability or versatility
If electronic components are incorporated into the dressing, then the system becomes more integrated and convenient, but the moisture from wound exudate makes it difficult to protect the electronics
Solution Approach 1:
The patent applies different material properties to different regions of the dressing. The electronics assembly is positioned in a specific zone with localized protective features, while other areas maintain their original absorbent and wound-contact properties. This allows the dressing to simultaneously protect electronics from moisture while maintaining overall functionality.
Solution Approach 2:
The patent introduces protective barriers and moisture-management layers as intermediary elements between the wound exudate and the electronic components. These intermediary layers allow the electronics to be integrated into the dressing while protecting them from direct contact with moisture.
3Ease of operation
If the negative pressure source is integrated into the wound dressing, then the system becomes more convenient and comfortable for the patient, but the manufacturing complexity increases
Solution Approach 1:
The patent divides the integrated dressing into distinct functional modules or layers, such as the wound contact layer, absorbent layer, and electronics assembly section. This segmentation allows each component to be manufactured separately using established processes, then assembled into the final integrated product, reducing overall manufacturing complexity while maintaining integration benefits.
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
This solution enables a more convenient, comfortable, and effective application of negative pressure wound therapy, reducing the bulk and complexity of the treatment system while allowing for the incorporation of electronic components.
Implementation Method 1
applying negative pressure to the site of the wound... a source of negative pressure (such as a vacuum pump) to the cover in a manner so that negative pressure is created and maintained under the cover
Implementation Method 2
an absorbent layer over the wound contact layer... Wound exudate may soak into the dressing
Data Source
AI summary
Disclosed herein are embodiments of a wound treatment apparatus with electronic components integrated within a wound dressing. In some embodiments, a wound dressing apparatus can comprise a wound contact layer, an absorbent layer over the wound contact layer, the absorbent layer comprising one or more apertures, a cover layer configured to cover and form a seal over the wound contact layer and the absorbent layer, and an electronics assembly comprising a negative pressure source. A portion of the cover layer overlying the one or more apertures in the absorbent layer can be configured to be compressed within the aperture in the absorbent layer when negative pressure is applied to the wound dressing apparatus. The compressed cover layer can indicate a level of negative pressure below the cover layer. In some embodiments, the wound dressing apparatus can comprise an indicator material layer and a cover layer configured to cover and form a seal over the wound contact layer and the indicator material layer. The indicator material layer can be configured to protrude relative to a surrounding surface of an upper surface of the wound dressing apparatus when negative pressure is applied to the wound dressing apparatus and the protruding indicator material layer indicates a level of negative pressure below the cover layer.