Indwelling Fecal Diverting Device Balloon Fixation
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Solution Overview
Problem
Existing fecal diverting devices, such as abdominal colostomy and fecal discharging devices, face challenges in securely diverting feces without contact with anastomosed intestinal portions, leading to potential leakage and requiring prolonged installation or removal, which can be hazardous for patients, especially the elderly or weak.
Innovation Solution
A flexible, body-harmless tube with inflatable fixing and opening/closing balloons and injection passages is used to securely position and control the fecal diverting device within the intestinal tract, allowing for safe fecal diversion and easy installation, with the option to inject enemas or antibiotics for disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thin vinyl tube is sutured to the inner wall of the intestinal tract, then feces can be discharged without contacting the anastomosed portion, but the tube is difficult to suture properly and requires extended time for installation
Solution Approach 1:
The patent uses inflatable balloons (fixing balloon and opening/closing balloon) attached to the tube to secure the device in place and control fecal discharge. The balloons are inflated through air passages to provide mechanical fixation and functional control without requiring complex suturing procedures.
Solution Approach 2:
The patent changes the physical state of the balloons from deflated to inflated to achieve different functions. When the fixing balloon is inflated, it secures the tube to the intestinal wall. When the opening/closing balloon is inflated, it opens or closes the tube lumen to control fecal discharge, allowing parameter-based functional control.
2Ease of operation
If a thin vinyl tube is used for fecal discharge, then the tube can be easily removed after 5-10 days, but it is difficult to maintain indwelling fecal diversion for a desired period of time
Solution Approach 1:
The patent makes the tube dynamically adjustable through inflation and deflation of balloons. The fixing balloon can be inflated to secure the tube for long-term indwelling, and deflated for easy removal when needed. The opening/closing balloon provides dynamic control over the tube lumen, allowing the system to adapt between permanent fixation and easy removal based on clinical needs.
3Reliability
If an abdominal colostomy device is used to divert feces, then leakage at the anastomosed portion is prevented, but the device requires permanent installation and cannot be removed without a second operation
Solution Approach 1:
The patent uses an inflatable fixing balloon to provide secure mechanical fixation of the tube to the intestinal wall, achieving reliable leakage prevention similar to abdominal colostomy. However, the balloon can be deflated to allow easy removal of the tube without requiring a second surgical operation, thus simplifying the removal process.
4Adaptability or versatility
If a temporary abdominal colostomy device is installed for 2-3 months, then permanent colostomy can be avoided, but 30-60% of patients cannot be restored to original state and must live with the device permanently
Solution Approach 1:
The patent provides a dynamic system where the tube can be temporarily secured using the fixing balloon for 2-3 months to allow intestinal healing. After the temporary period, the balloon can be deflated and the tube removed, restoring the patient to their original state. The system adapts to both temporary and permanent needs based on patient recovery progress.
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 fecal contact with anastomosed portions, ensuring superior safety and easy installation, allowing for extended use without the risks associated with traditional methods, and can be easily removed when necessary.
Implementation Method 1
A pair of fixing balloons are attached up and down to a circumferential outer surface of the tubular body part
Implementation Method 2
a tube opening and closing balloon is attached to a circumferential inner surface of the tubular body part
Data Source
AI summary
Disclosed is an indwelling fecal diverting device. The device comprises an elongate tube formed, at an upper end thereof, with a tubular body part; a pair of fixing balloons attached up and down to an outer surface of the tubular body part such that a clamping portion is defined between the fixing balloons; and a tube opening and closing balloon attached to an inner surface of the tubular body part. An injection passage is defined in the tube so that a remedial liquid can be injected through the injection passage to the outside of the tube to medically treat an anastomosed portion of an intestinal tract of a patient. The indwelling fecal diverting device is fitted into the intestinal tract of the patient, air is supplied into the fixing balloons to inflate them, and the intestinal tract is clamped around the clamping portion using a clamping band.