Ostomy Port With Expandable Fixation Element
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Solution Overview
Problem
Patients undergoing ostomy surgery face challenges with peristomal skin irritation and medical complications due to the continuous attachment of adhesive-backed collection bags, which can lead to erosion, bleeding, and discomfort, as well as the lack of control over body waste evacuation.
Innovation Solution
An ostomy management device featuring an ostomy port with an outer flange, intermediate channel, and fixation element that anchors within the abdomen, allowing for the use of a stoma plug to cover the opening and eliminate the need for a continuous collection bag, using a collapsible chamber and expandable fixation element for secure placement and easy self-application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive-backed collection bags are continuously attached to collect body wastes, then waste collection is effective, but peristomal skin irritation and medical complications increase
Solution Approach 1:
The patent extracts the harmful adhesive component from the waste collection system. Instead of using adhesive-backed bags that directly contact the stoma and surrounding skin, the invention uses a non-adhesive collection bag that attaches to an ostomy port inserted into the stoma. This separates the waste collection function from the skin-contact function, eliminating skin irritation while maintaining effective waste collection.
Solution Approach 2:
The ostomy port acts as an intermediary device between the stoma and the collection bag. The port is inserted into the stoma and provides a secure anchoring point for the collection bag, eliminating the need for adhesive materials that cause skin irritation. The intermediary port transfers the attachment function away from the sensitive peristomal skin.
2Reliability
If adhesive-backed collection bags are used for waste collection, then waste evacuation is managed, but patient control over evacuation is lost
Solution Approach 1:
The collection bag in the patent incorporates a valve mechanism that transitions from a closed state (preventing waste evacuation) to an open state (allowing controlled evacuation). This dynamic element enables the patient to control when waste is evacuated by simply opening the valve, providing ease of operation while maintaining reliable waste management.
Solution Approach 2:
The valve mechanism is designed to be operated by the patient themselves without requiring medical assistance. The patient can control waste evacuation by opening the valve when convenient, enabling self-service operation while maintaining effective waste management throughout the wear period.
3Strength
If strong adhesives are used to attach collection bags, then secure attachment is achieved, but peristomal skin erosion and bleeding occur
Solution Approach 1:
The patent completely removes adhesive materials from the attachment system. The collection bag attaches to the ostomy port through mechanical means (such as a flange or connector) rather than adhesive, eliminating the source of skin erosion and bleeding while maintaining secure attachment through the port structure.
Solution Approach 2:
The ostomy port serves as an intermediary that provides a secure attachment point for the collection bag without requiring adhesive contact with the skin. The port is inserted into the stoma and provides a robust mechanical interface for bag attachment, transferring the attachment function away from the vulnerable peristomal skin.
4Reliability
If removable bags are attached to stoma, then waste collection is effective, but frequent medical assistance is required
Solution Approach 1:
The patent extends the wear time of the collection bag beyond typical adhesive-backed bags. The non-adhesive design with secure port attachment and controlled valve allows the bag to remain in place for longer periods (up to 3-7 days or more), reducing the frequency of changes and medical assistance while maintaining effective waste collection throughout the extended wear period.
Solution Approach 2:
The device is designed for patient self-management including self-application and self-removal of the collection bag. The simple valve mechanism and secure port attachment enable patients to manage their own waste evacuation without frequent medical intervention, reducing time loss while maintaining reliable waste collection.
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 provides a safe and economical solution by reducing skin irritation, improving patient control over waste evacuation, and allowing for extended use without frequent medical assistance, enhancing the quality of life for ostomy patients by minimizing the need for external bags and adhesives.
Implementation Method 1
The fixation element is to expand within the intestine, so as to anchor the ostomy management device against an inner surface of an abdominal wall
Data Source
AI summary
An ostomy management device (100) including an ostomy port (102) insertable inside a stoma (202) on a patient's abdomen. The ostomy port (102) includes an outer flange (204) placed at periphery of the stoma (202). The outer flange (204) includes a collapsible chamber (210) to collect instilling fluid in a non-operating state of the outer flange (204). A fixation element (208) to anchor the ostomy management device (100) inside an intestine (214). The fixation element (208) is to expand after displacement of the instilling fluid contained in the outer flange (204) to the fixation element (208). An intermediate channel (206) to transport body waste to the stoma (202). A stoma plug (106), attached to the outer flange (204), to cover an opening in the outer flange (204) to stop the body waste from flowing out from the stoma (202) during an operating state of the outer flange (204).