Folded Ostomy Collection Bag With Bulge Alert for Leak Control
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Solution Overview
Problem
Existing Ostomy containment systems face issues such as leakage, skin irritation, ballooning, embarrassing sounds, long irrigation durations, intestinal abrasion, non-sealed stoma closure, intestinal movement leading to hernias and prolapse, and excessive compressive force causing ischemia and necrosis.
Innovation Solution
An artificial Ostomy containment device with a soft, flexible sleeve implanted in the abdominal cavity, using a balloon for hermetic sealing and controlled mechanical stress, allowing peristaltic propelling of fecal matter, and incorporating features for irrigation and drug administration, with a closure system that minimizes mechanical stress on intestinal tissue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional Ostomy containment system is used, then waste collection is achieved, but leakage and skin irritation occur
Solution Approach 1:
The device divides the containment system into separate functional modules: a soft flexible sleeve for gentle contact with intestinal tissue, a closure system with balloon for hermetic sealing, and a collection bag for waste accumulation. This segmentation allows each component to optimize its function without compromising skin integrity.
Solution Approach 2:
The device employs a soft flexible sleeve made of compliant material that conformally contacts the intestinal tissue without rigid edges or sharp corners. This flexible shell design prevents mechanical irritation to the skin and tissue while maintaining effective waste containment.
2Ease of operation
If compression force is applied to control stoma, then waste flow control is achieved, but ischemia and necrosis occur
Solution Approach 1:
The closure system utilizes a balloon that can be inflated with fluid or gas to occlude the stoma and control waste flow. This pneumatic/hydraulic mechanism provides adjustable compression force distributed over a larger surface area, preventing localized ischemia and necrosis while maintaining effective flow control.
Solution Approach 2:
The device allows dynamic adjustment of compression parameters through controlled balloon inflation. The operator can modulate the degree of occlusion by varying the inflation pressure and volume, thereby controlling waste flow while preventing excessive compression that would cause tissue damage.
3Stability of the object's composition
If a rigid support structure is used, then structural stability is achieved, but intestinal abrasion occurs
Solution Approach 1:
The device replaces rigid support structures with a soft flexible sleeve that provides structural stability through material properties and geometric design rather than rigidity. The sleeve conforms to the intestinal surface, distributing forces evenly and eliminating abrasive contact points.
Solution Approach 2:
The sleeve is constructed from composite or specially formulated materials that combine flexibility with adequate structural support. These materials provide the necessary stability to maintain device position and function while remaining compliant enough to prevent intestinal abrasion.
4Quantity of substance
If frequent pouch emptying is required, then waste collection is achieved, but loss of time and convenience is reduced
Solution Approach 1:
The device allows preliminary accumulation of waste in the collection bag before reaching maximum capacity. The hermetic closure system maintains containment throughout the collection period, enabling users to defer pouch emptying or changing until a convenient time, thereby reducing the frequency of interruptions.
Solution Approach 2:
The device maintains continuous waste containment and control through the hermetic closure system. The closure remains effective throughout the entire collection period without requiring intermediate intervention, ensuring continuous protection and control while minimizing user interaction time.
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 device effectively prevents leakage and mechanical stress-related complications, allowing for controlled waste flow and irrigation while reducing the risk of hernias, prolapses, and tissue damage, providing a comfortable and functional Ostomy management solution.
Implementation Method 1
the balloon, on inflation, presenting an outwardly tapered surface with a shape which complements the tapered inner surface of the support whereby during control of the stoma with the device a relatively large surface of the bowel may be greatly compressed between the plug and the support
Implementation Method 2
allowing peristaltic propelling of fecal matter
Data Source
Figure 1
Figure 2A~2B
Figure 2C
AI summary
It is proposed an assembly comprising a disposable waste content collection bag for collecting waste from an ostomy containment device comprising a stomal cover adapted to adjust to a topology of a skin of a user around a stoma, and a cap; wherein the bag is arranged outside the stomal cover in a folded configuration; the bag is adapted to be unfolded under the pressure of a bowel content; the bag is held in place by a cap adapted to fit over the stomal cover; and the cap includes a flexible portion adapted to protrude outwards when exposed to axial pressure exerted by bowel content, so that the user notices bulging flexible portion and is made aware of a need for evacuation.