Triple-Lipid Ostomy Skin Barrier for Adhesion Without Irritation
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Solution Overview
Problem
Ostomy appliances cause peristomal skin irritation and injuries due to prolonged use, necessitating skin barriers with sufficient adhesive strength without causing skin injury or irritation.
Innovation Solution
A skin barrier composition comprising a water-insoluble pressure-sensitive adhesive component, a hydrophilic component, and at least three types of lipids, including ceramide, cholesterol, and fatty acids, formulated to provide optimal adhesive properties and minimize skin irritation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If skin barriers include ceramide and have sufficient adhesive strength to support an ostomy pouch, then adhesive strength is improved, but skin irritation and injuries may occur during use and upon removal
Solution Approach 1:
The patent modifies the chemical composition parameters of the adhesive by incorporating a triple lipid formulation (ceramide, cholesterol, and fatty acids) in specific ratios. This changes the adhesive's properties to reduce skin irritation while maintaining strength. The ceramide content is specifically controlled at 0.1-5% of the adhesive composition, and the lipid formulation is applied at controlled levels to optimize both adhesion and skin compatibility.
Solution Approach 2:
The patent creates a composite adhesive material combining water-insoluble pressure-sensitive adhesive components with a triple lipid formulation. This composite structure integrates the bonding capabilities of traditional adhesives with the skin-protective properties of lipids, achieving both strong attachment and reduced skin damage. The hydrophilic component (30-70% of composition) works synergistically with the lipid formulation to balance adhesion and skin safety.
2Strength
If skin barriers are designed to securely attach and support an ostomy appliance, then adhesive strength is improved, but peristomal skin health may be compromised due to prolonged use
Solution Approach 1:
The lipid formulation in the adhesive provides self-service skin protection functions. The ceramide, cholesterol, and fatty acids work together to maintain skin barrier integrity, reduce water loss, and protect against irritation during prolonged wear. This self-protective mechanism operates continuously without additional intervention, ensuring skin health is maintained throughout the appliance's wear period.
Solution Approach 2:
The adhesive is formulated with skin-protective lipids that proactively protect the skin before damage can occur. The ceramide and cholesterol components create a protective barrier that prevents irritation and maintains skin integrity during extended wear, cushioning the skin against the potential harmful effects of prolonged adhesive contact.
3Reliability
If skin barriers include ceramide to promote peristomal skin health, then skin health is improved, but adhesive strength may be insufficient to support an ostomy pouch
Solution Approach 1:
The patent optimizes the concentration parameters of ceramide and other lipids to achieve the right balance between skin health and adhesive strength. By controlling ceramide at 0.1-5% of the adhesive composition and using specific ratios of the triple lipid formulation, the adhesive maintains sufficient bonding strength while providing skin protective benefits. The water-insoluble pressure-sensitive adhesive component (30-70% of composition) provides the primary bonding strength.
Solution Approach 2:
The patent creates a composite adhesive system where the water-insoluble pressure-sensitive adhesive provides structural bonding strength, while the hydrophilic component and triple lipid formulation provide skin-protective functions. This composite structure allows both adhesive strength and skin health promotion to coexist, with each component performing its specialized function synergistically.
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 composition achieves improved skin hydration, reduced trans-epidermal water loss, and enhanced adhesive characteristics, reducing peristomal skin irritation and injuries while maintaining effective attachment of ostomy pouches.
Implementation Method 1
a water-insoluble pressure-sensitive adhesive component
Implementation Method 2
absorbing moisture and liquid from the peristomal skin
Implementation Method 3
reduced trans-epidermal water loss, and enhanced adhesive characteristics, reducing peristomal skin irritation and injuries
Data Source
AI summary
An ostomy skin barrier composition includes a water-insoluble pressure-sensitive adhesive component, a hydrophilic component, and at least three different types of lipids including ceramide, cholesterol, and fatty acids. The skin barrier composition is configured to provide skin barriers having adhesive characteristics suitable for ostomy applications to securely attach an ostomy pouch to user's peristomal skin, while minimizing peristomal skin irritation and injuries.