Disposable Defecation Pocket with Pre-Formed Void Volume
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Solution Overview
Problem
Existing fecal management devices often experience issues with improper expansion, leading to discomfort, leakage, and detachment from the wearer's skin, which can result in distressing consequences for both the wearer and the carer.
Innovation Solution
A disposable defecation pocket that can expand from a flat configuration to an erected configuration without external pressure, featuring a first material for the bottom and a second material for the side wall, with attachment materials for secure attachment to the skin and an article, such as a diaper or absorbent pant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device is expanded passively upon exposure of feces inside the device, then the device can contain feces, but the fecal material exerts pressure on the device leading to awkward feeling of pressure upon defecation or even hinder proper defecation
Solution Approach 1:
The pocket is pre-formed with a three-dimensional erected configuration that provides adequate void volume before use. This preliminary structuring ensures that the pocket is already expanded and ready to receive fecal material without requiring passive expansion during defecation, thereby eliminating pressure discomfort while maintaining reliable containment.
2Reliability
If the device is expanded passively upon exposure of feces inside the device, then the device can contain feces, but the storage capacity of the device can be detrimentally affected
Solution Approach 1:
The pocket is pre-formed with a three-dimensional erected configuration that maximizes void volume before use. This preliminary expansion ensures adequate storage capacity is available from the start, preventing any reduction in storage capacity that would result from passive expansion during actual use.
3Device complexity
If the device is not properly expanded, then the device structure remains compact, but improper expansion of the pocket leading to insufficient void volume can cause leakage of feces
Solution Approach 1:
The pocket is pre-formed with a three-dimensional erected configuration that ensures adequate void volume and proper structural form before use. This preliminary structuring guarantees sufficient capacity and appropriate geometry to prevent leakage, while maintaining a compact form when not in use through the inherent stability of the pre-formed structure.
4Device complexity
If the device is not properly expanded, then the device structure remains compact, but the pressure exerted by the feces on the attachment between device and wearer's skin can result in unintentional partial or complete detachment from the wearer's skin
Solution Approach 1:
The pocket is pre-formed with a three-dimensional erected configuration that provides adequate void volume to distribute fecal pressure evenly. This preliminary structuring prevents pressure concentration that could compromise attachment stability, while maintaining secure attachment through the balanced design of the pre-formed structure.
5Device complexity
If the device may not stick in their proper position, then the device can be simpler in design, but leading to a discomfort of the wearer due to an uncomfortable position of the device, or even to detachment of the device from the wearer's skin
Solution Approach 1:
The pocket is pre-formed with a three-dimensional erected configuration and equipped with attachment means that are activated or engaged during application. This preliminary preparation ensures proper positioning and secure attachment through mechanisms such as adhesives or fasteners that are ready to engage, providing wearer comfort without overly complex attachment mechanisms.
Data Source
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AI summary
A disposable defecation pocket for containing feces is disclosed. The pocket has an opening, a perimeter around the opening, a bottom, and a side wall. The pocket is able to expand from a flat, collapsed configuration to an erected configuration, wherein the erected configuration provides a void volume inside the pocket. The pocket is, at least partly, in its erected configuration in the absence of any applied pressure.