Detachable Urostomy Valve Closure for Secure, Comfortable Drainage
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Solution Overview
Problem
Existing urostomy and ileostomy appliances face challenges in providing a comfortable and reliable mechanism for draining liquid and solid waste, with potential detachment issues and discomfort due to sharp corners and inadequate closure mechanisms.
Innovation Solution
A valve system with a moveable closure arrangement and smooth transition design, featuring a detachable and rotatable closure member, integrated into the outlet portion for improved comfort and secure attachment, suitable for both liquid and solid waste types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a valve mechanism is provided for draining waste, then the ability to empty collected waste is improved, but detachment issues and discomfort occur due to sharp corners and inadequate closure mechanisms
Solution Approach 1:
The closure member is designed to be moveable between different positions (open and closed states) to dynamically control the outlet opening. This dynamic mechanism allows the valve to transition between allowing waste flow and preventing flow, improving both ease of operation and closure reliability through controlled movement rather than static design
Solution Approach 2:
The outlet portion is designed with a smooth transition from the collecting volume, eliminating sharp corners. This curved geometry reduces discomfort during wear and improves the reliability of the closure mechanism by providing a smoother surface that reduces stress concentration and enhances sealing effectiveness
2Reliability
If a closure arrangement is provided to block the outlet, then waste containment is improved, but the mechanism becomes complex and prone to detachment
Solution Approach 1:
The closure arrangement is divided into separate components: a closure member that can be detached from the outlet portion. This segmentation allows the closure member to be removed for cleaning or replacement while leaving the outlet portion intact, reducing overall system complexity and improving reliability by isolating the detachable component from the main structure
Solution Approach 2:
The closure member is designed as a detachable component that can be extracted from the outlet portion. This extraction capability simplifies the overall mechanism by allowing the closure function to be separated from the structural outlet portion, reducing complexity and making the system more maintainable while maintaining reliable waste containment when closed
Data Source
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AI summary
A valve for a urostomy appliance (10) including: a body (110) for connection to the urostomy appliance (10), an inlet (104) and an outlet (102), connected by a flow path, and a closure arrangement (120) which is moveable between a closed position, in which the closure arrangement (120) blocks the outlet (102), such that liquid cannot flow through the outlet (102), and an open position in which the outlet (102) is open, such that liquid is permitted to flow out of the outlet (102), wherein the closure arrangement (120) is detachably connectable to the body (110).