Ostomy Base Plate Sensing for Predictive Adhesive Change Timing
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Solution Overview
Problem
Current ostomy appliances lack effective monitoring systems to determine the operating state and predict future conditions, leading to potential leakage and skin damage due to inadequate adhesive performance, which can result in early or late appliance changes.
Innovation Solution
An ostomy system comprising a base plate with electrodes and a monitor device that communicates with a mobile or wearable accessory device to assess the adhesive layer's erosion and swelling, providing real-time and predictive data on the appliance's operating state, enabling timely changes and reducing leakage and skin damage risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no monitoring system is used, then the appliance structure remains simple, but adhesive performance cannot be determined and leakage risks increase
Solution Approach 1:
The patent replaces complex mechanical monitoring systems with electrical measurement systems. Electrodes measure electrical properties (resistance, capacitance, impedance) of the adhesive layer to detect erosion and swelling, substituting mechanical sensing with electrical field-based detection that is less intrusive and more precise.
Solution Approach 2:
The patent introduces electrical properties as an intermediary parameter to assess adhesive condition. Instead of directly measuring physical erosion or swelling, the system measures changes in electrical resistance, capacitance, or impedance caused by moisture absorption and material degradation, providing indirect but reliable detection of adhesive performance.
2Object-affected harmful factors
If appliance changes are made early, then leakage and skin damage risks are reduced, but material waste increases
Solution Approach 1:
The system performs preliminary detection of adhesive degradation through electrical property measurements before actual leakage or skin damage occurs. By detecting erosion and swelling in early stages, the system enables proactive appliance replacement timing, preventing harmful effects while avoiding premature replacement that would waste material.
Solution Approach 2:
The monitoring system provides continuous feedback on adhesive layer condition through electrical measurements. This feedback loop allows real-time assessment of adhesive performance, enabling users to replace appliances at the optimal moment when degradation thresholds are reached, balancing skin protection with material utilization efficiency.
3Measurement precision
If electrodes and monitor devices are added, then adhesive performance can be determined, but device complexity increases
Solution Approach 1:
The electrodes serve multiple functions: they measure electrical properties of the adhesive layer, detect moisture levels, monitor erosion and swelling, and provide data for predictive analytics. This multi-functionality reduces the need for separate specialized sensors, minimizing overall device complexity while achieving comprehensive monitoring.
Solution Approach 2:
The system monitors changes in electrical parameters (resistance, capacitance, impedance) of the adhesive layer to detect degradation. By using electrical property changes as indicators of physical and chemical degradation, the system achieves precise measurement without requiring complex mechanical or optical sensing apparatus.
Data Source
AI summary
The present disclosure relates to a method, performed in an accessory device, for monitoring the current operating state and the future operating state of a base plate of an ostomy appliance. The accessory device comprises an interface configured to communicate with one or more devices of an ostomy system. The interface comprises a display. The ostomy system comprises a monitor device, and/or the ostomy appliance configured to be placed on a skin surface of a user. The ostomy appliance comprises a base plate. The method comprises obtaining monitor data from the monitor device; determining a current operating state of the ostomy appliance based on the monitor data; determining a future operating state of the ostomy appliance based on the monitor data and/or the current operating state; and displaying, on the display, a first user interface screen comprising a first primary user interface object representing the current operating state and/or a first secondary user interface object representing the future operating state.