Neutralizing Release Layer for Ostomy Adhesive Protection

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Solution Overview

Problem

Ostomy appliances face challenges in providing long wear time and skin protection due to aggressive stomal output, which degrades adhesive materials and causes skin irritation and adhesive failure.

Innovation Solution

A complementary-material element with a release layer containing a neutralizing component that is activated by moisture, which is directed into the peristomal gap to neutralize the harmful effects of stomal output, thereby protecting the skin and adhesive layer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If adhesive materials are used to attach the ostomy device to the user's skin surface, then the device can be securely fixed, but the adhesive materials degrade due to aggressive stomal output, reducing wear time and reliability

Engineering Contradiction:

Improveadhesive integrityVSAvoidwear time

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

A complementary-material element is introduced as an intermediary component between the stomal output and the adhesive base plate. This element includes a neutralizing component that chemically neutralizes aggressive substances in the stomal output, preventing direct contact with and degradation of the adhesive materials, thereby maintaining adhesive integrity and extending wear time

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The neutralizing component in the complementary-material element converts harmful aggressive substances in the stomal output into beneficial neutralized substances. By chemically neutralizing acids, enzymes, and other aggressive components, the system transforms potentially damaging output into a state that no longer degrades the adhesive, thus extending device wear time

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Duration of action of stationary object

If the device is designed for prolonged wear time, then user convenience is improved, but skin maceration and contact dermatitis occur due to exposure to aggressive stomal output

Engineering Contradiction:

Improvewear timeVSAvoidskin irritation

Core Design Contradiction:

Duration of action of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The complementary-material element serves as a protective intermediary layer between the stomal output and the user's skin. It contains a neutralizing component that chemically neutralizes aggressive substances before they can contact the skin, preventing maceration and contact dermatitis while enabling prolonged wear time

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The neutralizing component in the complementary-material element performs preliminary neutralization of aggressive substances in the stomal output before they can cause harm to the skin. By pre-neutralizing acids, enzymes, and other irritants, the system prevents skin maceration and contact dermatitis from occurring

Inventive Principle:

Principle #9Preliminary anti-action

3Device complexity

If a simple adhesive base plate is used, then device complexity is minimized, but skin protection and adhesive efficiency are insufficient under prolonged exposure to stomal output

Engineering Contradiction:

Improvedevice structureVSAvoidskin protection

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The ostomy device is segmented into separate functional components: a base plate for attachment and a complementary-material element for neutralization and protection. This modular segmentation allows the neutralizing functionality to be added without completely redesigning the base plate, maintaining relatively simple device structure while significantly improving skin protection and adhesive efficiency

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The complementary-material element is constructed as a composite structure containing a neutralizing component embedded in a matrix material. This composite design provides both structural integrity and chemical neutralization functionality, enhancing skin protection without requiring overly complex device architecture

Inventive Principle:

Principle #40Composite materials

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 solution effectively reduces skin maceration, contact dermatitis, and adhesive degradation, leading to increased wear time and improved user comfort and device reliability.

Implementation Method 1

the release layer comprises a neutralizing component configured to be releasable from the complementary-material element in response to subjection of the complementary-material element to moisture

Methodology Applied

Scientific EffectNeutralization reaction: Chemical Bonding

Data Source

PatentUS11534327B2Complementary-material element for an ostomy appliance

Publication Date: 2022.12.27 COLOPLAST AS

AI summary

A complementary-material element configured to be attachable to a base plate of an ostomy appliance and comprising a release layer, the element comprising a release layer comprises a neutralizing component configured to be releasable from the complementary-material element in response to subjection of the complementary-material element to moisture. The complementary-material element comprises a first surface and a second surface, wherein the first surface is provided with a first cover layer.