Intestinal Sleeve Bypass for Gut Microbiota Modulation
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Solution Overview
Problem
Current pharmaceutical approaches face challenges in effectively targeting and eliminating 'bad' bacteria in the intestines to promote colonization by 'good' bacteria, as they struggle to specifically target bacteria that have already colonized, leading to difficulties in modifying intestinal microbial flora for treating chronic diseases like diabetes and obesity.
Innovation Solution
An implant system comprising an intestinal sleeve anchored at the pyloric junction, which bypasses a section of the intestine, combined with probiotics, prebiotics, or pharmacologic therapy, either administered separately or impregnated within the sleeve, to alter the microbial balance by starving 'bad' bacteria of nutrients and promoting 'good' bacteria colonization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If probiotic-based pharmaceutical therapy is used to ameliorate bad bacteria, then good bacteria colonization is promoted, but the ability to specifically target and eliminate bad bacteria that have already colonized is insufficient
Solution Approach 1:
The intestine is segmented into different regions, with the sleeve specifically targeting the proximal small intestine where bad bacteria predominantly colonize. This spatial segmentation allows concentrated therapeutic action on the problematic region while preserving other intestinal functions.
Solution Approach 2:
The intestinal sleeve acts as a physical intermediary device that creates a controlled environment within the intestine. It serves as a carrier for probiotics and a barrier that modifies the microbial ecosystem, enabling targeted modulation without directly contacting all bacteria throughout the entire intestine.
2Reliability
If the intestinal sleeve is implanted to bypass a section of the intestine, then bad bacteria are starved of nutrients and their prevalence is reduced, but the device complexity increases
Solution Approach 1:
The sleeve extracts or isolates a specific section of the intestine (proximal small intestine) from the normal digestive flow. By taking out this segment and creating a bypass, the device removes the problematic bacterial colony from the main nutrient pathway, starving them of nutrients while maintaining overall intestinal function.
Solution Approach 2:
The intestinal sleeve is constructed as a flexible, thin-walled implant that can be minimally invasively deployed within the intestine. Its flexible membrane structure allows it to conform to the intestinal anatomy while creating the necessary physical barrier, reducing device complexity compared to rigid structures.
3Strength
If the sleeve is anchored at the pyloric junction to stabilize the implant, then the anchoring strength is improved, but the device complexity increases due to additional anchoring components
Solution Approach 1:
The anchoring function is merged with the main sleeve structure rather than being a separate complex mechanism. The flanges are integrated extensions of the sleeve body itself, combining the containment function with the anchoring function in a single unified component, thereby reducing overall device complexity.
Solution Approach 2:
Instead of using active anchoring mechanisms that push or grip into tissue, the flanges use a passive inversion approach where they rest against the pyloric junction anatomy. The anchoring force is generated by the natural pressure differential and anatomical fit rather than active mechanical engagement, simplifying the anchoring mechanism.
Data Source
AI summary
Described is a system for affecting intestinal microbial flora. The system includes an intestinal sleeve that is implanted in a patient and bypasses a section of the intestine; and probiotics, prebiotics or pharmacologic therapy used in combination with the intestinal sleeve. Also described are related methods.