Adhesive Fecal Collection Interface for Continuous Drainage

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Solution Overview

Problem

Existing fecal collection systems are inadequate for individuals with limited or impaired mobility, as they often require complex installation, increase the risk of pressure sores, and are inefficient in managing feces collection and disposal.

Innovation Solution

A fecal collection system comprising a user interface assembly with an adhesive sheet, a drainage conduit, and a collection reservoir, designed for easy attachment to the user's skin, allowing for feces to be guided to a remote collection point with a one-way valve system, enabling easy replacement and maintenance without removing the interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex installation system is used, then the fecal collection can be achieved, but the ease of operation deteriorates

Engineering Contradiction:

Improvefecal collection effectivenessVSAvoidinstallation complexity

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system is divided into separate modular components: a user interface assembly with adhesive sheet, a drainage conduit, and a collection reservoir. Each component can be independently applied or replaced, simplifying the overall installation process while maintaining effective fecal collection functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The user interface assembly including the adhesive sheet is designed as a disposable component that can be easily applied and removed. This eliminates the need for complex reusable installation mechanisms, improving ease of operation while maintaining reliable fecal collection during the usage period.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Device complexity

If frequent detachment is required for maintenance, then the device complexity is reduced, but the duration of action deteriorates

Engineering Contradiction:

Improvemaintenance requirementVSAvoidcontinuous operation time

Core Design Contradiction:

Device complexityVSDuration of action of moving object

Solution Approach 1:

The system separates the user interface assembly (with adhesive sheet) from the drainage conduit and collection reservoir. This segmentation allows the interface to be independently replaced without detaching the entire system, enabling continuous operation while simplifying maintenance to only the interface component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The adhesive sheet and user interface are extracted as a removable module that can be replaced independently. This extraction allows maintenance to be performed on only the interface component, extending the continuous operation time of the overall system without requiring complex disassembly procedures.

Inventive Principle:

Principle #2Taking out (Extraction)

3Duration of action of moving object

If the interface remains attached continuously, then the duration of action is improved, but the ease of repair deteriorates

Engineering Contradiction:

Improvecontinuous operation timeVSAvoidinterface replacement difficulty

Core Design Contradiction:

Duration of action of moving objectVSEase of repair

Solution Approach 1:

The user interface assembly is segmented from the drainage conduit and collection reservoir, creating an independent replaceable module. This segmentation enables the interface to remain attached continuously for long periods while allowing easy removal and replacement of the interface component without affecting the rest of the system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The adhesive sheet and user interface are designed as disposable components with a planned service life. This design accepts that the interface will need periodic replacement rather than repair, simplifying the replacement process while enabling continuous operation of the overall system through rapid exchange of the short-living interface component.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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

The system facilitates efficient feces collection and disposal, reduces the risk of pressure sores, and allows for continuous operation without frequent detachment from the user, enhancing user comfort and convenience.

Implementation Method 1

The adhesive sheet is configured to couple to the skin of the user

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 2

The drainage conduit defines a lumen configured to guide feces from the proximal end to the distal end

Methodology Applied

Scientific EffectOne-way valve mechanism: Valve

Data Source

PatentUS20260102275A1Fecal Collection Systems and Methods

Publication Date: 2026.04.16 SAGE PROD LLC

AI summary

In an example, a fecal collection system includes a user interface assembly, a drainage conduit, and a collection reservoir. The user interface assembly includes a user interface and an applicator. The user interface has a proximal side and a distal side. The proximal side is configured to couple to skin of a user. The applicator is coupled to the distal side of the user interface. The applicator is removable from the user interface while the user interface is coupled to the user. The drainage conduit extends between a proximal end and a distal end. The proximal end is configured to couple to the distal side of the user interface. The drainage conduit defines a lumen configured to guide feces from the proximal end to the distal end. The collection reservoir coupled to the distal end of the drainage conduit.