Moisture Detecting Base Plate for Ostomy Adhesive Failure

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Solution Overview

Problem

Ostomy devices face adhesive failure issues due to stomal output and peristomal skin moisture, leading to unpredictable and embarrassing leakage incidents, which current solutions fail to adequately address, impacting the quality of life for ostomists.

Innovation Solution

A base plate with integrated sensor elements that detect moisture propagation patterns, providing early warnings to users about impending adhesive failure, allowing timely replacement and preventing severe leakage incidents, through a system comprising a first sensor element with a conductor and ground electrode pair, and a control unit that distinguishes between normal and unusual moisture propagation patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of stationary object

If hydrocolloid materials are used in adhesive to absorb moisture, then the adhesive capability is stabilized and wear time is prolonged, but the adhesive eventually fails when moisture absorption capacity is exhausted

Engineering Contradiction:
Improvewear timeVSAvoidadhesive capability
Core Design Contradiction:
Duration of action of stationary objectVSReliability

Solution Approach 1:

The sensor element detects moisture propagation in the adhesive layer before complete adhesive failure occurs, enabling early warning and timely replacement of the ostomy appliance to prevent leakage incidents

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The sensor assembly provides continuous feedback on moisture levels in the adhesive layer, allowing users to monitor adhesive condition and replace the appliance at the optimal time based on actual moisture propagation patterns

Inventive Principle:
Principle #23Feedback

2Reliability

If sensor elements are integrated into the base plate, then early detection of adhesive failure is enabled, but device complexity increases

Engineering Contradiction:
Improveleakage preventionVSAvoidsensor integration
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sensor assembly is integrated with the base plate structure, combining the adhesive layer, sensor element, and backing layer into a unified component that maintains simplicity while enabling moisture detection functionality

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The base plate serves multiple functions: providing adhesive attachment, containing the sensor element for moisture detection, and forming part of the overall ostomy appliance structure, thereby reducing the need for separate components

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

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 solution enables users to react promptly to adhesive failure, reducing the occurrence of embarrassing leakage incidents and improving the reliability and longevity of ostomy appliances by providing timely alerts and guidance on when to replace the appliance.

Implementation Method 1

the sensor is configured to detect moisture propagation in the layer of adhesive material

Methodology Applied
Scientific EffectMoisture absorption: Absorption (physical)

Implementation Method 2

the sensor pair comprises a first sensor and a second sensor... each comprising a conductor electrode and a ground electrode

Methodology Applied
Scientific EffectElectrical resistance change: Electrical Resistance

Data Source

PatentUS20240000602A1Moisture detecting base plate for an ostomy appliance and a system for determining moisture propagation in a base plate and/or a sensor assembly part
Publication Date: 2024.01.04 COLOPLAST AS
  • US20240000602A1 patent drawing
  • US20240000602A1 patent drawing
  • US20240000602A1 patent drawing

AI summary

The disclosure relates to a system for determining and signalling moisture propagation in an adhesive material layer of a base plate and/or a sensor assembly part for an ostomy appliance. The disclosure further relates to aspects of a base plate and/or a sensor assembly part for an ostomy appliance and its use in such a system.