Ostomy Appliance Dual Connection Formation Prevents Sagging
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Solution Overview
Problem
Conventional ostomy appliances face challenges in maintaining a secure seal and preventing sagging as the collecting volume fills with waste, leading to potential leakage and discomfort.
Innovation Solution
The ostomy appliance features a connection member with radially extending slits and a dual connection formation system, where the first connection formation provides support around the stoma-receiving opening and the second connection formation offers additional anchorage above, preventing the pouch from sagging forward.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single connection formation is used between the connection member and the first wall, then the device complexity is reduced, but the reliability of the seal deteriorates as the pouch fills with waste
Solution Approach 1:
The connection arrangement is segmented into multiple distinct connection formations (first connection formation extending around the stoma-receiving opening and second connection formation disposed outside its periphery). This segmentation allows each connection formation to independently maintain seal integrity at different radial positions, preventing the pouch from sagging forward as it fills with waste while distributing the sealing function across multiple locations rather than relying on a single connection point.
2Stability of the object's composition
If the connection member is positioned closer to the stoma-receiving opening, then the ease of operation is improved, but the stability of the pouch deteriorates as it sags forward
Solution Approach 1:
The connection formations are arranged in different radial dimensions from the stoma-receiving opening. The first connection formation is positioned immediately around the stoma-receiving opening for easy attachment and operation, while the second connection formation is positioned at a greater radial distance. This dimensional arrangement allows the pouch to be securely anchored at multiple radial positions, preventing forward sagging while maintaining ease of initial attachment at the inner periphery.
3Duration of action of moving object
If the collecting volume is increased to accommodate more waste, then the duration of action is extended, but the weight of the appliance increases causing more sagging
Solution Approach 1:
The connection arrangement is segmented into multiple connection formations distributed at different radial positions. The first connection formation provides initial support around the stoma-receiving opening, while the second connection formation provides additional anchorage at a greater radial distance. This segmented support structure distributes the weight of the filling collecting volume across multiple attachment points, reducing the sagging force at any single location and allowing extended collection duration without excessive forward sagging.
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
This design enhances the secure attachment and reduces the likelihood of leakage by providing additional support between the connection member and the first wall, maintaining a stable seal and preventing the pouch from sagging as it fills with waste.
Implementation Method 1
The surface 34 has a hydrocolloid to adhere the connection member 30 to the skin
Data Source
Figure 1
Figure 2~3B
Figure 4A~5
AI summary
An ostomy appliance (1) is provided including: first and second walls (10, 12) which are connected at or near their peripheries to provide a waste collecting cavity (14) therebetween, a stoma-receiving opening (20) provided in the first wall (10), and a connection member (30), which provides for connection to a patient around a stoma, which is connected, directly or indirectly, to the first wall (10) by a connection arrangement (40) which includes: a first connection formation (50), which extends around the stoma receiving opening (20) and has a periphery and provides support between the connection member (30) and the first wall (10), and a second connection formation (60), which is disposed outside of the periphery of the first connection formation (50) and further away from the stoma-receiving opening (20) than the first connection formation (50).