Ostomy Accessory Absorbing Stoma Secretions
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Solution Overview
Problem
Patients with an intestinal stoma post-ostomy procedure experience discomfort due to fluid leakage and dehydration from the mucosa wall, which is not adequately addressed by traditional pouching systems.
Innovation Solution
An ostomy accessory with an artificial closing sphincter function, featuring an insertion portion with an absorbing body to retain liquid secretions and an outer non-permeable layer to prevent dehydration, along with an attachment mechanism for secure placement on the abdominal wall, including adhesive or non-adhesive options and a gasket for additional sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pouching systems are used to cover the stoma, then the stoma is protected and feces can be collected, but fluid leakage and dehydration from the mucosa wall occur causing patient discomfort
Solution Approach 1:
The ostomy accessory employs a nested structure where the inner tube is inserted into the stoma lumen and the outer pouch is attached to the abdominal wall, with the inner tube nested within the outer pouch system. This nested configuration allows the inner absorbing tube to capture secretions at their source while the outer pouch provides additional containment and sealing, thereby preventing fluid leakage and dehydration without requiring a complete traditional pouching system.
Solution Approach 2:
The inner tube is specifically designed with absorbing material to address the local issue of secretions from the mucosa wall, while the outer pouch provides general containment. This localized quality approach targets the specific problem of fluid leakage at the stoma site without requiring the entire pouching system to be modified, improving sealing effectiveness while maintaining patient comfort.
2Ease of operation
If an artificial constriction device is implanted to control opening times, then patient control over faecal matter removal is improved, but fluid secretions from the mucosa wall still leak causing discomfort
Solution Approach 1:
The inner absorbing tube serves as an intermediary element between the mucosa wall and the external environment. It is positioned within the stoma lumen to directly intercept and absorb secretions before they can leak outward, while the outer pouch acts as a secondary intermediary providing additional containment. This dual intermediary approach maintains the functionality of the artificial constriction device while eliminating the harmful fluid leakage effect.
3Productivity
If the stoma is left open for natural digestion, then optimal digestion occurs, but transpiration and dissemination through the intestinal wall cause discomfort
Solution Approach 1:
The ostomy accessory utilizes flexible thin-walled structures for both the inner tube and outer pouch that conform to the stoma anatomy. These flexible shells allow the stoma to remain functionally open for natural digestion while providing a barrier against transpiration and dissemination. The thin-film construction maintains comfort and flexibility while preventing harmful fluid loss through the intestinal wall.
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 accessory effectively seals the stoma, preventing fluid leakage and dehydration of the mucosa wall, enhancing patient comfort by containing secretions and maintaining the intestinal environment, while allowing for convenient faecal matter collection.
Implementation Method 1
an absorbing body for absorbing and retaining liquid matter, consisting of liquid secreted from a mucosa wall of the intestine
Implementation Method 2
an absorbing body for absorbing and retaining liquid matter
Implementation Method 3
The outer part of the accessory comprises a liquid non-permeable layer in order to allow the absorbing body of the accessory to retain absorbed liquid secretions
Implementation Method 4
The accessory may further comprise an adhesive material or a layer of adhesive material for attachment to the abdominal wall
Data Source
Figure 1~2
Figure 3a~3c
Figure 4~6
AI summary
The invention discloses an ostomy accessory (20) for an intestinal stoma of a mammal ostomy patient, adapted to be used together with an implanted constriction device with an artificial closing sphincter function for closing the intestinal passageway. The ostomy accessory is adapted to absorb secret from the mucosa wall of the part of the intestine which is distal to the constriction device, which may secrete or disseminate some liquid matter, which may thus spill out and cause discomfort to the patient, for example by staining the clothes of the patient. The ostomy accessory comprises an insertion portion (21) for insertion into said intestinal stoma and comprising an absorbing body (23, 24, 25) for absorbing and retaining liquid matter consisting of liquid secreted from a mucosa wall of the intestine (31). The accessory (20) also comprises an outer part (22) attached to the insertion portion and adapted to seal said stoma (5) together with the insertion portion (21), the outer part (22) comprising a liquid non-permeable layer in order to allow the absorbing body to retain absorbed liquid secretions from the mucosa wall so that the mucosa wall does not dehydrate.