Ostomy Appliance Wear-Time Detection Through Adhesive Moisture Sensing
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Solution Overview
Problem
Existing ostomy appliances lack effective methods for determining wear time, leading to potential adhesive failure, leakage, and skin damage due to early or late replacement.
Innovation Solution
An ostomy system with a base plate and monitor device that includes sensors and electrodes to detect moisture propagation in the adhesive, providing real-time data for determining the remaining wear time and preventing adhesive failure or leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ostomy appliance wear time is determined without sensors, then device complexity is reduced, but reliability of wear time determination deteriorates
Solution Approach 1:
The sensor system is divided into multiple independent sensors (moisture sensor, temperature sensor, acceleration sensor) that each monitor specific parameters. This segmentation allows the system to achieve high reliability through multiple data points while keeping individual sensor components simple and manageable.
Solution Approach 2:
The system continuously collects sensor data and provides feedback to determine adhesive performance and remaining wear time. This feedback mechanism enables real-time monitoring and prediction of adhesive failure, significantly improving wear time determination reliability without requiring complex manual assessment.
2Measurement precision
If sensor data collection is implemented, then measurement precision of adhesive condition is improved, but device complexity increases
Solution Approach 1:
The system replaces manual visual inspection and mechanical assessment of adhesive condition with automated sensor-based detection. Moisture sensors, temperature sensors, and acceleration sensors objectively measure adhesive state, providing high measurement precision while the data processing algorithms manage the complexity of monitoring multiple parameters simultaneously.
3Reliability
If early replacement based on sensor data is implemented, then reliability is improved, but loss of time increases
Solution Approach 1:
The system performs preliminary detection of adhesive degradation trends before actual failure occurs. By analyzing sensor data patterns and predicting remaining wear time, the system enables proactive replacement scheduling that prevents leakage while minimizing unnecessary early replacements, thus optimizing both reliability and time utilization.
4Reliability
If continuous monitoring is implemented, then reliability of leakage prevention is improved, but use of energy increases
Solution Approach 1:
The sensor system operates periodically rather than continuously, collecting data at scheduled intervals and during key events (such as when the user stands up or sits down). This periodic operation maintains reliable leakage detection capability while significantly reducing energy consumption compared to continuous monitoring.
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
Enables reliable determination of ostomy appliance wear time, reducing the risk of leakage and skin damage by ensuring timely replacement, thus enhancing user comfort and reducing material waste.
Implementation Method 1
sensors and electrodes to detect moisture propagation in the adhesive
Data Source
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AI summary
Embodiments for determining an ostomy appliance wear time based on sensor data are disclosed. In an embodiment, an accessory device for an ostomy system comprises a monitor device and an ostomy appliance. The ostomy appliance comprises a base plate. The accessory device comprises: a memory, a processor, and a monitor interface coupled to the processor and configured to communicate with the monitor device and obtain monitor data from the monitor device coupled to the ostomy appliance. The processor is configured to determine an operating state of the base plate, determine sensor data associated with the user, the user's activities, and/or the user's environment, and determine an actual wear time of the ostomy appliance based on the operating state and the sensor data.