Intraluminal Absorbent Ileostomy Insert for Waste Containment
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Solution Overview
Problem
Current solutions for managing liquid intestinal waste from ileostomies, such as stoma bags, are cumbersome, lead to psychological strain, and often result in leakage due to incontinence and skin complications, with limited absorption capacity and discomfort during physical activity.
Innovation Solution
An absorbent insert device configured to expand radially and longitudinally upon insertion into the ileum, forming a leak-tight closure that retains liquid waste, using an expandable elongated body with absorbent material and withdrawal means, allowing for secure retention and removal without leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stoma bag is used to collect intestinal waste, then the waste can be collected externally, but the user experiences psychological strain, social handicap, and discomfort during physical exercise
Solution Approach 1:
The invention extracts the waste collection function from the external stoma bag and relocates it inside the intestine using an intraluminal absorbent device. The device comprises an expandable body with absorbent material that is inserted through the stoma and expanded within the intestinal lumen to collect waste internally, eliminating the need for external bag attachment and improving user comfort while maintaining reliable waste collection
Solution Approach 2:
The patent introduces an intermediary expandable device that acts as a mediator between the intestinal waste and the stoma opening. This device expands within the intestine to form a closure that prevents waste leakage while allowing controlled access through the stoma, serving as an intermediate solution that eliminates both external bags and traditional tampon closures
2Reliability
If traditional tampon-like closures are used in the intestine, then the stoma can be closed, but the absorption capacity is insufficient leading to leakage and increased pressure on the intestinal wall
Solution Approach 1:
The invention employs composite materials combining an expandable structural body with integrated absorbent material. The device includes a framework or support structure that provides mechanical strength for closure, combined with hydrophilic absorbent polymers or fibers that provide high absorption capacity for liquid waste, creating a composite structure that simultaneously achieves reliable closure and high absorption volume
Solution Approach 2:
The patent utilizes parameter changes by transforming the device from a compressed insertion state to an expanded operational state. The absorbent material undergoes phase transition from dry to saturated state, and the device volume increases significantly upon expansion, enabling the same device to provide both initial closure and subsequent high-capacity absorption of large volumes of liquid intestinal waste
3Reliability
If the stoma bag is adhered to the skin, then waste can be collected, but the weight causes discomfort and may result in involuntary detachment and leakage
Solution Approach 1:
The invention extracts the waste collection function from the external adhesive bag system and relocates it internally. The device is inserted through the stoma and expanded within the intestine, eliminating the need for adhesive attachment to the skin and the associated weight-related discomfort while maintaining secure waste containment through internal expansion and absorption
4Object-affected harmful factors
If a protruding stoma is created to guide waste into the bag, then waste contact with surrounding skin is minimized, but skin ulcerations may occur and the protruding stoma adds to mental burden
Solution Approach 1:
The invention extracts the waste collection function from the external environment and relocates it inside the intestine. By collecting waste internally through the expandable absorbent device, the need for a protruding stoma is eliminated, allowing the stoma to be flush with the skin surface while still preventing waste contact with surrounding skin and improving psychological comfort
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 absorbs and retains the majority of liquid waste, reducing the need for external bags, minimizing leakage, and providing a discreet and comfortable solution for individuals with ileostomies, while avoiding skin complications and social stigma.
Implementation Method 1
an expandable elongated body comprising an absorbent material
Implementation Method 2
absorbent material selected from the group consisting of carboxymethyl cellulose, alginate, super absorbent polymers, super absorbent fibers, cotton, plant fibers/polymers, and foams made from any of the aforementioned materials
Data Source
AI summary
Disposable absorbing closures for liquid and semi-liquid intestinal wastes from intestinal openings. In particular, an absorbent insert device for insertion through an ileostomy of a subject, the device being configured to absorb and/or collect intestinal waste inside the ileum of the subject to form a leak-tight closure of the ileostomy, the device including: an expandable elongated body having an initial length and including an absorbent material, and withdrawal means attached to the elongated body, wherein the expandable elongated body is configured to: expand radially upon insertion into the ileum through the ileostomy; and optionally expand longitudinally thereby increasing the length of the elongated body inside the ileum.