Ostomy Sensor Assembly for Adhesive Moisture Failure Detection
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Solution Overview
Problem
Existing ostomy systems lack reliable methods for determining the nature, severity, and rapidness of moisture propagation in the adhesive material, leading to potential appliance failure, leakage, and skin damage.
Innovation Solution
An ostomy system with a base plate and sensor assembly that includes adhesive layers and electrodes to monitor moisture propagation, providing real-time data to a monitor device for assessing adhesive failure and predicting replacement needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive layers are used to secure the base plate to the skin, then the appliance can be firmly attached, but moisture propagation through the adhesive causes adhesive failure and potential leakage
Solution Approach 1:
The adhesive layer is segmented into multiple regions with different properties: a first adhesive layer with higher moisture resistance for secure attachment, and a second adhesive layer with lower moisture resistance for flexibility. This segmentation allows each region to perform its specific function optimally while preventing moisture propagation that would cause overall adhesive failure.
Solution Approach 2:
Different regions of the adhesive layer are given different qualities - the first adhesive layer has enhanced moisture resistance and bonding strength, while the second adhesive layer provides flexibility and comfort. This local differentiation prevents moisture propagation from compromising the entire adhesive system.
2Measurement precision
If electrodes are added to monitor moisture propagation, then real-time detection capability is improved, but device complexity increases
Solution Approach 1:
The monitoring function is extracted into a separate sensor assembly that can be independently configured and positioned. This sensor assembly includes electrodes and circuitry that can be optimized for moisture detection without complicating the base plate design, allowing modular integration.
Solution Approach 2:
The sensor assembly serves multiple functions: it monitors moisture propagation, detects adhesive layer status, and provides real-time data to the control unit. This multi-functionality justifies the added complexity by consolidating multiple monitoring tasks into a single integrated system.
3Reliability
If real-time monitoring of adhesive failure is implemented, then timely replacement can be detected, but energy consumption increases
Solution Approach 1:
The monitoring system operates in periodic cycles rather than continuously - the sensor assembly periodically checks moisture levels and adhesive integrity, then transmits data to the control unit. This periodic operation significantly reduces energy consumption while maintaining reliable detection of adhesive failure conditions.
Solution Approach 2:
The adhesive layers themselves serve as part of the sensing mechanism through their different moisture resistance properties. The first and second adhesive layers inherently provide the monitoring function through their differential response to moisture, reducing the need for additional active sensing components and associated energy consumption.
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 timely replacement of ostomy appliances to prevent leakage and skin damage by accurately detecting adhesive failure and moisture propagation patterns.
Implementation Method 1
the first adhesive layer and the second adhesive layer configured for attachment to a skin surface of a user
Implementation Method 2
obtain one or more parameters based on the first identifier response
Data Source
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AI summary
Disclosed is a sensor assembly part for a base plate of an ostomy system and an associated method for operating a monitor device, wherein the sensor assembly part comprises: an electrode assembly including a plurality of electrodes, each electrode including a sensing part and a connection part, the connection part being configured to electrically couple the sensing part to a monitor device of the ostomy system; a monitor interface configured to couple the sensor assembly part to the monitor device; and a first identifier element configured to be queried by the monitor device.