Dual-Chamber Ostomy Pouch Flat Tap Segmentation
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Solution Overview
Problem
Conventional ostomy pouches with cylindrical output taps are bulky and prone to clogging when used with night drainage systems, leading to user discomfort and leakage due to the mixture of liquids and solids being drained continuously.
Innovation Solution
A dual-chamber ostomy pouch with a flat output tap that separates solids and liquids, where solids are retained in a body side chamber and liquids flow into an outer chamber, allowing for continuous liquid drainage without clogging, and the output tap can be adjusted to accommodate larger solids and opened to drain both liquids and solids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a cylindrical output tap is used for continuous drainage, then liquid waste can be drained continuously, but the tap becomes bulky under clothing and prone to clogging by solid matter
Solution Approach 1:
The ostomy pouch is divided into two separate chambers: an inner chamber that collects both liquid and solid waste, and an outer chamber that receives only liquid waste through a filter. This segmentation allows continuous liquid drainage while preventing solids from entering the output tap, resolving the clogging issue while maintaining productivity.
Solution Approach 2:
The output tap is changed from a cylindrical shape to a flat shape, representing a dimensional change from three-dimensional circular cross-section to a flattened profile. This dimensional change reduces bulkiness under clothing while maintaining the drainage function.
2Strength
If a cylindrical output tap is used, then it can maintain structural integrity, but it is bulky under clothing and causes user discomfort
Solution Approach 1:
The output tap is redesigned from a cylindrical form to a flat profile, changing its dimensional characteristics. This flat design reduces the volume protruding under clothing, improving comfort and discretion while maintaining sufficient structural integrity through appropriate material selection and wall thickness design.
3Ease of operation
If continuous drainage is enabled, then user comfort during sleep is improved, but solid matter clogs the drainage system
Solution Approach 1:
The pouch system is segmented into an inner collection chamber and an outer drainage chamber separated by a filter. This segmentation allows continuous drainage of liquids to maintain user comfort during sleep, while the filter prevents solids from entering the drainage pathway, ensuring system reliability.
Solution Approach 2:
A filter is introduced as an intermediary component between the inner chamber containing solids and the outer chamber for liquid drainage. This intermediary element selectively permits liquid passage while blocking solids, enabling continuous drainage without clogging and maintaining both comfort and reliability.
Data Source
AI summary
An ostomy appliance includes a dual-chamber pouch, which can continuously drain liquids from body waste, while collecting solids in the pouch. The ostomy appliance can also include a flat output tap including a lumen, the size of which can be increased by applying pressure.