Moisture Sensing Wound Dressing with Electrode Assembly

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Solution Overview

Problem

Current wound dressings lack effective monitoring capabilities, leading to unpredictable changes, potential adhesive failure, leakage, and unsatisfactory wound healing conditions, as users cannot accurately determine when to replace them.

Innovation Solution

A wound dressing system incorporating a monitor device and electrode assembly with sensors that detect moisture levels and wetting patterns, providing real-time data on the dressing's condition to prevent premature or delayed changes, ensuring optimal healing conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wound dressings are used without monitoring capabilities, then the device complexity is low, but the reliability of wound healing is reduced due to unpredictable changes and potential adhesive failure

Engineering Contradiction:
Improvereliability of wound healingVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements feedback by incorporating sensors that continuously monitor wound conditions (moisture, temperature, pH) and transmit this information to a processing unit. The system provides real-time feedback about the wound state, enabling dynamic adjustment of care protocols and timely detection of complications, thereby significantly improving the reliability of wound healing outcomes.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The wound dressing system integrates multiple functions into a single device: absorption of exudate, sensing of wound parameters (moisture, temperature, pH), wireless communication, and data processing. This multi-functional approach improves healing reliability while minimizing the addition of separate devices, thus managing complexity through integration rather than proliferation of components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If wound dressings incorporate monitoring capabilities, then the measurement precision of wound conditions is improved, but the device complexity increases

Engineering Contradiction:
Improvemeasurement precision of wound conditionsVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The monitoring system is segmented into distinct functional modules: sensing elements for different parameters (moisture sensors, temperature sensors, pH sensors), a processing unit, and a communication module. This segmentation allows for precise measurement of multiple wound conditions while managing complexity through modular design, where each segment performs a specific function independently.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses an intermediary processing unit that receives raw data from multiple sensors, processes and interprets this information, and then transmits relevant data wirelessly. This intermediary layer enables high measurement precision by coordinating multiple sensors while reducing the complexity burden on individual sensor components and simplifying the overall system architecture.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of time

If wound dressings remain in use beyond optimal replacement time, then the loss of time for dressing changes is reduced, but the harmful factors increase due to leakage and unsatisfactory healing conditions

Engineering Contradiction:
Improveloss of time for dressing changesVSAvoidharmful factors from leakage and poor healing
Core Design Contradiction:
Loss of timeVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary action by continuously monitoring wound conditions and providing early warnings when the dressing approaches its replacement threshold. The processing unit analyzes sensor data in real-time and alerts users before leakage or deterioration occurs, enabling proactive scheduling of dressing changes and preventing harmful conditions from developing.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The feedback mechanism provides continuous information about the dressing's absorption capacity and wound state, enabling users to determine the optimal replacement time based on actual condition rather than fixed schedules. This real-time feedback prevents both premature changes (reducing time loss) and delayed changes (preventing leakage and poor healing).

Inventive Principle:
Principle #23Feedback

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 system enables reliable monitoring of wound dressing conditions, reducing the risk of leakage and unsatisfactory healing by providing timely replacement indications, thus enhancing user comfort and healthcare efficiency.

Implementation Method 1

an electrode assembly comprising a plurality of electrodes arranged on a distal side of the absorbent core layer

Methodology Applied
Scientific EffectElectrical conductivity: Conduction (electrical)

Data Source

PatentUS12070376B2Denmark moisture sensing wound dressing
Publication Date: 2024.08.27 COLOPLAST AS
  • US12070376B2 patent drawing
  • US12070376B2 patent drawing
  • US12070376B2 patent drawing

AI summary

A wound dressing is disclosed. In examples, the wound dressing includes a first adhesive layer with a proximal surface configured for attachment of the wound dressing to the skin surface of a user, an absorbent core layer, an electrode assembly, and a top layer on a distal side of the electrode assembly. The electrode assembly includes a plurality of electrodes arranged on a distal side of the absorbent core layer and a plurality of sensor points distributed along a distal surface of the absorbent core layer.