Multi-petaled Ostomy Pouch Mounting Member for Irregular Skin Fit
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Solution Overview
Problem
Ostomates face challenges in finding ostomy appliances that provide a suitable fit, leading to discomfort and reluctance to try different options due to concerns about unsuitable fits.
Innovation Solution
A multi-petaled mounting member for ostomy pouches, featuring a flexible plastic member with a central body and surrounding rim, along with double-sided adhesive substrates and an adhesive skin barrier member, designed to adhere securely to various skin surfaces without the need for additional adhesive tape, ensuring a smooth fit across different skin contours.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a traditional flat adhesive wafer is used, then the appliance can be manufactured simply, but it fails to provide a smooth fit on irregular peristomal skin surfaces
Solution Approach 1:
The adhesive wafer is segmented into multiple radial zones (first adhesive zone with first set of properties, second adhesive zone with second set of properties) connected by interconnecting parts. This segmentation allows different portions of the wafer to conform to different contours of the peristomal skin surface, providing a smooth fit on irregular surfaces while maintaining a manageable structural complexity through systematic zonation.
Solution Approach 2:
Different radial zones of the adhesive wafer are assigned different adhesive properties (first set of properties in the first adhesive zone, second set of properties in the second adhesive zone). This local differentiation enables specific zones to adapt to specific skin surface conditions, with some zones providing stronger adhesion for protruding areas and other zones providing flexibility for recessed areas, thereby achieving smooth fit on irregular surfaces.
2Reliability
If the adhesive wafer covers a large area to ensure secure attachment, then attachment reliability improves, but the wafer may peel or bunch on irregular skin surfaces
Solution Approach 1:
The large adhesive wafer is divided into multiple radial zones with different adhesive properties, allowing each zone to independently adapt to the skin surface contour. This prevents peeling and bunching by ensuring that no single large continuous adhesive area is forced to conform to irregular surfaces, thereby maintaining attachment security without compromising adhesive uniformity.
Solution Approach 2:
The adhesive properties (such as adhesive strength, flexibility, or viscosity) are varied across different radial zones of the wafer. This parameter change allows the adhesive composition to be optimized for different locations on the peristomal skin surface, ensuring reliable attachment while preventing peeling and bunching through localized adaptation to surface irregularities.
3Adaptability or versatility
If a single adhesive property is used across the entire wafer, then the manufacturing process is simple, but the appliance cannot adapt to varying skin surface conditions
Solution Approach 1:
The adhesive wafer is manufactured with segmented radial zones, each containing a specific adhesive property. This segmentation enables the appliance to adapt to varying skin surface conditions (protruding, recessed, or irregular areas) while maintaining ease of manufacture through a systematic zonation approach that can be implemented using conventional manufacturing techniques such as co-extrusion or layering during wafer production.
Solution Approach 2:
Different adhesive properties are incorporated into different radial zones of the wafer during manufacturing. This local quality differentiation allows the appliance to adapt to various skin surface conditions without significantly complicating the manufacturing process, as the different adhesive properties can be integrated into the wafer structure using standard multi-layer or zoned manufacturing methods.
4Reliability
If additional adhesive tape is used to secure the appliance, then attachment strength increases, but the complexity of application and potential for skin irritation increases
Solution Approach 1:
The adhesive wafer itself is segmented into multiple zones with different adhesive properties, providing varied attachment strengths across different areas of the peristomal skin surface. This eliminates the need for additional adhesive tape, as the zoned wafer independently provides sufficient attachment strength while simplifying the application process and reducing potential skin irritation from multiple adhesive layers.
Solution Approach 2:
The adhesive functionality and the structural support functions are merged into a single multi-zoned adhesive wafer. This integration eliminates the need for separate adhesive tape components, simplifying the application process and reducing the number of adhesive interfaces that could potentially irritate the skin, while maintaining or enhancing overall attachment strength through the zoned design.
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 multi-petaled mounting member provides improved fit and comfort by securely adhering to peristomal skin surfaces, preventing peeling and bunching, even on irregular surfaces, and maintaining attachment as the pouch fills with waste, thus enhancing user experience and wear time.
Implementation Method 1
a first double-sided adhesive substrate member (24) comprising a first face (26), an opposite second face (28), and an outer perimeter (30)... a second double-sided adhesive substrate member (32) comprising a first face (34), an opposite second face (36)... an adhesive skin barrier member (40)... The second face (28) of the first double-sided adhesive substrate member (24) is adhered to the central body portion (18) and the surrounding rim (20)... The second face (36) of the second double-sided adhesive substrate member (32) is adhered to the first face (26) of the first double-sided adhesive substrate member (24)... The second face (44) of the adhesive skin barrier member (40) is adhered to the first face (34) of the second double-sided adhesive substrate member (32)
Data Source
Figure 1~3
Figure 2
Figure 4
AI summary
A multi-petaled mounting member for an ostomy pouch is disclosed. The mounting member comprises a flexible plastic member comprising a central body portion, a surrounding rim, and an outer perimeter, a first double-sided adhesive substrate member comprising a first face, an opposite second face, and an outer perimeter, a second double-sided adhesive substrate member comprising a first face, an opposite second face, and a multi-petaled outer perimeter, and an adhesive skin barrier member comprising a first face, an opposite second face, and a multi-petaled outer perimeter. The perimeters of the first member and the adhesive skin barrier member substantially correspond in size and shape to the perimeters of the flexible plastic member and the second member, respectively. The perimeter of the second member has a size greater than the perimeter of the flexible plastic member and a shape corresponding to 2 to 8 petals extending radially from the second member.