Waisted Ostomy Pouch Structure for High-Volume Discreet Wear
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Solution Overview
Problem
Existing ostomy pouches face a trade-off between increased capacity and discreetness, with larger volumes often compromising discretion and comfort, and intermittent draining systems reducing convenience.
Innovation Solution
The ostomy pouch design features a cavity with three sections, including two waisted sections, allowing for increased volume while maintaining discretion and comfort, and incorporates a deployable drain and filter arrangement for reliable and hygienic emptying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the volume of the pouch is increased to extend the length of use, then the duration of action is improved, but the discreetness and comfort are worsened
Solution Approach 1:
The pouch is divided into multiple sections (first section, second section, third section) separated by waisted portions. This segmentation allows the pouch to achieve increased total volume while maintaining a compact, discreet profile through the constricted waisted regions that prevent excessive bulging in any single section.
Solution Approach 2:
The pouch utilizes a three-dimensional multi-section configuration with waisted portions creating a figure-of-8 or multi-lobed shape. This dimensional arrangement distributes volume across multiple spatial regions while the waisted sections control the overall envelope, allowing extended capacity without proportional increase in external dimensions.
2Duration of action of moving object
If the volume of the pouch is increased to extend the length of use, then the duration of action is improved, but the discreetness is worsened
Solution Approach 1:
The pouch is divided into multiple sections (first section, second section, third section) separated by waisted portions. This segmentation allows the pouch to achieve increased total volume while maintaining a compact, discreet profile through the constricted waisted regions that prevent excessive bulging in any single section.
Solution Approach 2:
The pouch utilizes a three-dimensional multi-section configuration with waisted portions creating a figure-of-8 or multi-lobed shape. This dimensional arrangement distributes volume across multiple spatial regions while the waisted sections control the overall envelope, allowing extended capacity without proportional increase in external dimensions.
3Quantity of substance
If a drain is provided to allow intermittent draining, then the control over stomal output is improved, but the convenience is worsened due to reduced ease of operation
Solution Approach 1:
The pouch incorporates a valve mechanism that enables the user to drain the pouch on-demand without requiring external equipment or complex operations. The valve allows simple manual activation to release accumulated output, providing self-contained control that maintains convenience while enabling quantity management.
Data Source
AI summary
The invention relates to an ostomy pouch 10, 110. The pouch 10, 110 comprises an inner wall 18b, 118b and an outer wall 20b, 120b sealed about at least part of the periphery thereof to define a cavity for containing a stomal output. An inlet 22, 122 is provided into the cavity for receiving stomal output from an ostomate, in use. The cavity comprises multiple sections 12, 14, 16; 112, 114, 116 separated by waisted sections 13, 15; 113, 115. The maximum width of the sections 12, 14, 16; 112, 114, 116 has a greater width than a minimum width of the waisted section(s) 13, 15; 113, 115.