Integrated Wound Dressing With Electronics Cassette

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Solution Overview

Problem

Existing negative pressure wound therapy (NPWT) systems require a remote negative pressure source and tubing, 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 into the dressing.

Innovation Solution

The integration of a negative pressure source and electronic components into a wound dressing apparatus, where the negative pressure source and electronics are positioned between the wound contact layer and the cover layer, allowing for an integral wound dressing structure that applies both the dressing and negative pressure simultaneously to the patient's wound.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a remote negative pressure source and tubing are used, then the negative pressure can be applied to the wound, but the system becomes cumbersome and difficult to position comfortably on the patient

Engineering Contradiction:

Improvecomfort and convenience of NPWT applicationVSAvoidremote pump and tubing configuration

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent integrates the negative pressure source directly into the wound dressing, merging previously separate components (dressing and pump) into a single unified device. This eliminates the need for remote pumps and external tubing, making the system more compact and easier to position on the patient while maintaining the ability to apply negative pressure to the wound

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If electronic components are incorporated into the dressing, then the system becomes more functional, but wound exudate makes incorporation difficult

Engineering Contradiction:

Improveincorporation of electronic componentsVSAvoidwound exudate interference

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent places electronic components within a dedicated electronics cassette that is nested within the wound dressing structure. This nested configuration allows electronic components to be integrated into the dressing while protecting them from wound exudate, as the cassette provides a contained environment that separates electronics from the moist wound interface

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The electronics cassette acts as an intermediary structure between the wound contact layer and the cover layer. It provides a protected environment for electronic components, shielding them from wound exudate while still allowing the dressing to function as intended. The cassette serves as a mediator that enables electronic integration without exposing components to harmful moisture

Inventive Principle:

Principle #24Intermediary (Mediator)

3Productivity

If the negative pressure source is integrated into the wound dressing, then the dressing and negative pressure are applied simultaneously, but the structure becomes more complex

Engineering Contradiction:

Improvesimultaneous application of dressing and negative pressureVSAvoidintegrated wound dressing structure

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent combines the wound dressing and negative pressure source into a single integrated unit, allowing simultaneous application of both components to the wound. This merger eliminates the need for separate application steps, improving efficiency and productivity while the modular cassette design helps manage the structural complexity

Inventive Principle:

Principle #5Merging (Combining)

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 comfortable and convenient application of NPWT, prevents pooling of wound exudate, maintains conformability of the dressing, and facilitates the incorporation of electronic components, thereby enhancing wound treatment efficacy.

Implementation Method 1

negative pressure is created and maintained under the cover. It is believed that such negative pressures promote wound healing by facilitating the formation of granulation tissue at the wound site and assisting the body's normal inflammatory process while simultaneously removing excess fluid

Methodology Applied

Scientific EffectNegative pressure: Pressure Gradient

Implementation Method 2

The absorbent layer may be configured to prevent pooling of wound exudate

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS20250082512A1Negative pressure wound treatment apparatuses and methods with integrated electronics

Publication Date: 2025.03.13 SMITH & NEPHEW PLC

AI summary

Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a wound dressing apparatus includes a wound contact layer, a first area and a second area over the wound contact layer, and a cover layer configured to cover the wound contact layer, the first area, and the second area. In some embodiments, a wound dressing apparatus includes a wound contact layer, a spacer layer, an absorbent layer positioned on the spacer layer, an electronics unit including a negative pressure source and/or electronic components, wherein the absorbent layer includes a recess configured to receive the electronics unit and the absorbent layer is configured to be in fluid communication with the electronics unit, and a cover layer configured to cover and form a seal over the wound contact layer, the spacer layer, the absorbent layer, and the electronics unit.