Moisture Detecting Base Plate for Ostomy Adhesive Failure
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Solution Overview
Problem
Ostomy devices often experience adhesive failure due to uneven skin surfaces, skin folds, and the natural moisture from stomal output, leading to unpredictable and embarrassing leakage incidents, which current solutions fail to reliably prevent or timely alert users to.
Innovation Solution
A base plate with integrated or separate sensor assembly parts that include a first and second sensor, connected to a control unit, to detect and signal moisture propagation patterns, providing early warnings for potential leakage and indicating the remaining lifespan of the adhesive, allowing users to replace the appliance before severe incidents occur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If hydrocolloid materials are used in adhesive to absorb moisture, then the adhesive stability is improved and wear time is prolonged, but the adhesive capability eventually fails due to continuous moisture accumulation
Solution Approach 1:
The sensor is integrated into the adhesive layer before use, positioned to detect moisture propagation at early stages. This preliminary detection capability allows the system to identify adhesive degradation trends before complete failure occurs, enabling proactive replacement and maintaining reliability throughout the extended wear time.
Solution Approach 2:
The sensor provides continuous feedback on moisture levels and propagation patterns within the adhesive layer. This feedback mechanism allows real-time monitoring of adhesive health, enabling the system to track the gradual degradation process and alert users before adhesive capability fails, thus resolving the contradiction between prolonged wear time and maintained reliability.
2Reliability
If sensors are integrated into the base plate to detect moisture propagation, then early warning capability is improved, but device complexity increases
Solution Approach 1:
The sensor is merged directly into the adhesive layer itself, rather than being a separate component. This integration approach combines the detection function with the existing adhesive structure, reducing overall device complexity while maintaining early warning capability. The sensor becomes an inherent part of the adhesive system rather than an added complexity.
Solution Approach 2:
The sensor serves multiple functions: detecting moisture propagation, determining propagation patterns, and providing early warnings. This multi-functionality consolidates several potential components into a single integrated sensor system, reducing device complexity while enhancing reliability through comprehensive monitoring capabilities.
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 effectively alerts users to impending adhesive failure, enabling timely replacement and preventing severe leakage incidents, thereby improving the reliability and comfort of ostomy appliances.
Implementation Method 1
hydrocolloid materials which are capable of absorbing high levels of moisture
Implementation Method 2
each sensor comprising a conductor electrode and a ground electrode... such that an electrical signal can be conducted between a respective sensor and the control unit interface
Data Source
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.