Urostomy Valve Closure for Secure Detachment and Comfort

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Solution Overview

Problem

Existing urostomy and ileostomy appliances face challenges in efficiently managing the flow of liquid and solid waste, with traditional valves being uncomfortable and prone to accidental detachment, especially when used for extended periods.

Innovation Solution

A valve system for urostomy appliances featuring a moveable closure arrangement with detachable and rotatable connection members, incorporating a bung portion for secure closure and a smooth transition design, ensuring comfort and preventing accidental detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional valves are used in urostomy appliances, then the valve can provide basic waste flow control, but the valve becomes uncomfortable and prone to accidental detachment during extended use

Engineering Contradiction:
Improveclosure integrityVSAvoidcomfort and security of attachment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The valve closure arrangement is divided into separate components: a closure member that can be detached from the valve body. This segmentation allows the closure member to be removed for cleaning or replacement while maintaining secure attachment during use, addressing both reliability and ease of operation requirements

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The closure arrangement transitions from a static attached state to a dynamic detachable state. The closure member can be securely attached during normal operation and then detached when needed for cleaning or disposal, providing adaptability throughout the extended use period

Inventive Principle:
Principle #15Dynamics

2Ease of repair

If the valve closure arrangement is made detachable for cleaning and maintenance, then ease of repair and cleaning is improved, but the risk of accidental detachment during normal operation increases

Engineering Contradiction:
Improvecleaning and maintenance accessibilityVSAvoidsecurity of attachment
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The closure member is pre-designed with a detachable connection mechanism that allows easy removal for cleaning or replacement. This preliminary design consideration enables maintenance activities without requiring disassembly of the entire valve assembly, improving ease of repair while maintaining secure attachment during normal use through proper connection design

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4426246B1A valve for a urostomy appliance
Publication Date: 2025.12.24 SALTS HEALTHCARE LTD
  • EP4426246B1 patent drawingFigure 1~2
  • EP4426246B1 patent drawingFigure 3~4
  • EP4426246B1 patent drawingFigure 5~6

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 connectable / connected to the body 110 in two locations.