Ostomy Body Side Member with Moldable Sealing Pockets
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Solution Overview
Problem
Conventional ostomy appliances face challenges in providing a secure seal around irregular stoma surfaces, leading to leakage issues due to aggressive stomal output and adhesive disintegration, requiring additional accessory products for compensation.
Innovation Solution
A body side member with a backing film and moldable material pockets that can be customized and dispensed to adapt closely to the stoma surface, providing an improved sealing effect without the need for additional accessories, using a combination of adhesives and moisture-absorbing materials to enhance adhesion and prevent leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ostomy appliances use standard adhesive backing, then the device is simple to manufacture and apply, but the adhesive disintegrates when exposed to aggressive stomal output, causing leakage
Solution Approach 1:
The body side member is divided into distinct functional zones: a first zone with adhesive material for skin attachment and a second zone with moldable material for stoma sealing. This segmentation allows each zone to perform its specific function optimally - the adhesive zone provides secure skin attachment while the moldable zone creates a customized seal around the stoma, preventing leakage without requiring complex multi-layer adhesives throughout the entire device.
Solution Approach 2:
Different materials are applied to different regions of the body side member. The first zone uses adhesive material optimized for skin attachment, while the second zone uses moldable material optimized for conforming to irregular stoma surfaces. This local quality approach ensures that each region has the precise properties needed for its function, improving seal integrity without unnecessarily complicating the overall device structure.
2Reliability
If additional accessory products are used to compensate for sealing deficiencies, then leakage is reduced, but the device complexity and number of components increases
Solution Approach 1:
The invention merges the sealing function and the adhesive backing into a single integrated body side member. The moldable material in the second zone provides the sealing function that would otherwise require separate accessory products, while the adhesive material in the first zone provides attachment. This integration eliminates the need for multiple separate components, reducing device complexity while maintaining reliable leakage prevention.
Solution Approach 2:
The body side member is designed to perform multiple functions within a single component: skin attachment via adhesive material, sealing around the stoma via moldable material, and leakage prevention through the combined action of both zones. This multi-functionality eliminates the need for separate accessory products, reducing the number of components while improving reliability.
3Reliability
If moldable material is pre-applied to the entire surface, then sealing coverage is maximized, but the material is wasted and cost increases
Solution Approach 1:
The body side member is segmented into a first zone with adhesive material and a second zone with moldable material. This segmentation ensures that moldable material is only placed in the second zone where it is needed for stoma sealing, rather than being pre-applied across the entire surface. This reduces material waste while maintaining adequate seal coverage for irregular stoma surfaces.
Solution Approach 2:
Moldable material is applied locally only in the second zone where stoma contact is required, rather than uniformly across the entire body side member. This localized application ensures adequate sealing coverage at the stoma interface while minimizing material usage and waste in areas where the material is not needed.
4Strength
If the adhesive layer is made thicker to improve bonding, then adhesion strength increases, but the device becomes more complex and material usage increases
Solution Approach 1:
The adhesive function is segmented into a specific first zone rather than being distributed throughout the entire body side member. This allows the adhesive material to be concentrated where skin attachment is needed, providing sufficient bonding strength without requiring excessive thickness or complex multi-layer structures across the entire device.
Solution Approach 2:
Adhesive material is applied locally in the first zone where skin attachment is required, rather than uniformly across the entire surface. This localized application provides adequate bonding strength at the skin interface while simplifying the overall device structure and reducing material usage in areas where adhesive properties are not needed.
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 leakage incidents and extends wear time by creating a secure seal that adapts to individual stoma irregularities, using a combination of adhesives and moisture-absorbing materials to maintain adhesion and prevent adhesive disintegration.
Implementation Method 1
The moldable material is configured to swell upon exposure to moisture from stomal output and/or the environment
Implementation Method 2
The proximal surface of the backing film comprises an adhesive
Data Source
AI summary
A body side member of an ostomy appliance having backing film forming a distal surface, the distal surface including one or more individual pockets containing a moldable material that can exit the pockets.