Expandable Excretion Cup Sealing for Posture-Change Leakage
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Solution Overview
Problem
Existing automatic excretion treating apparatuses face issues with excrement leakage due to gaps between the cup and the body of the user, especially when the user is in various postures, leading to potential odor leakage and increased burden on nursing staff.
Innovation Solution
A cup for an automatic excretion treating apparatus equipped with an expansion body that expands to maintain close contact with the body using working fluid, such as air or rinse water, and includes pressure sensors and an adhesive layer to ensure no gaps form during excretion treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid cup structure is used to maintain shape, then structural stability is improved, but gaps form between the cup and body when the user changes posture, causing leakage
Solution Approach 1:
The cup incorporates a flexible expansion body made of elastic material that can deform and adapt to different body postures. This flexible structure maintains close contact with the body surface while providing structural stability, preventing gaps that would cause leakage.
Solution Approach 2:
The expansion body is designed to dynamically adjust its shape and volume in response to body movements. By incorporating expandable and contractible elements, the cup maintains reliable sealing contact with the body regardless of posture changes, resolving the contradiction between structural stability and leakage prevention.
2Reliability
If an expansion body is added to eliminate gaps, then leakage prevention is improved, but device complexity increases
Solution Approach 1:
The expansion body is integrated into the cup structure as a unified component rather than a separate additive element. The elastic material forms an inherent part of the cup wall, allowing the cup to expand and contract while maintaining structural integrity, thus improving leakage prevention without significantly increasing device complexity.
Solution Approach 2:
The expansion body utilizes the elasticity of its material to automatically adjust and maintain contact with the body surface. This self-regulating mechanism eliminates the need for complex control systems, motors, or sensors, achieving reliable leakage prevention through the material's inherent properties while keeping the device simple.
3Reliability
If air suction is used to prevent leakage from gaps, then leakage prevention is improved, but energy consumption increases
Solution Approach 1:
Instead of using energy-intensive air suction to counteract leakage, the invention converts the cup's structural flexibility into a beneficial feature. The elastic expansion body passively adapts to body movements, maintaining sealing contact without requiring additional energy input, thus preventing leakage while avoiding increased 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
The expansion body effectively prevents leakage of excrement and rinse water by ensuring a secure fit, reducing the burden on nursing staff and simplifying the apparatus configuration without additional components.
Implementation Method 1
an expansion body provided between the cup main body and the body, expanding to be in close contact with the body by supplying with working fluid
Implementation Method 2
an adhesive layer provided between the expansion body and the body and configured to attach the expansion body and the body
Data Source
AI summary
A cup for an automatic excretion treating apparatus provided in an automatic excretion treating apparatus configured to automatically perform excretion treatment of a person dependent on care includes a cup main body attached to the body of the person dependent on care and configured to receive excrement, and an expansion body provided between the cup main body and the body, expanding to be in close contact with the body by supplying with working fluid.