Caloric Bypass Device for Selective Nutrient Diversion
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Solution Overview
Problem
Current medical devices for treating obesity fail to effectively redirect damaging food components without inhibiting healthy nutrient digestion, often requiring patient input or causing malnutrition, and lack less invasive methods to alter eating behavior for diabetic metabolic disorders.
Innovation Solution
A novel caloric bypass device with a compliant wall and tubular structure that separates fluids from solids in the gastrointestinal tract, using porous elements and valves to divert high-calorie fluids away from the Duodenum, allowing healthy nutrients to be absorbed while providing biological feedback to avoid unhealthy food ingestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional bariatric surgery procedures (Roux-en-Y gastric bypass, BPD) are used to reduce caloric intake, then weight loss is achieved, but patients risk malnutrition and require invasive surgical procedures
Solution Approach 1:
The device segments the gastrointestinal tract into two separate pathways: a primary pathway for undigested food particles to bypass the duodenum and jejunum, and a secondary pathway for digestive enzymes and nutrients to reach the absorptive tissues. This segmentation allows selective redirection of caloric content while preserving nutrient absorption, resolving the contradiction between caloric restriction and malnutrition prevention
Solution Approach 2:
The implantable device acts as an intermediary structure that physically separates food flow from enzyme flow. The device includes a first lumen for undigested food particles and a second lumen for digestive enzymes, creating an intermediary system that prevents direct mixing while maintaining both pathways. This intermediary structure enables the contradiction resolution by allowing caloric bypass while preserving nutrient digestion and absorption
2Quantity of substance
If Roux-en-Y gastric bypass is performed to bypass the Duodenum, then caloric absorption is reduced, but the procedure is highly invasive with surgical risks
Solution Approach 1:
The invention replaces complex surgical anastomosis procedures with a self-contained implantable device that achieves the same physiological effect through mechanical separation of flow pathways. Instead of permanently altering gastrointestinal anatomy through multiple surgical connections, the device is inserted as a complete unit that creates the bypass effect, significantly reducing surgical complexity and invasiveness
Solution Approach 2:
The device employs a nested structure where the first lumen (for food particles) is positioned within or alongside the second lumen (for enzymes). This nested configuration allows both pathways to coexist within a single implantable unit, simplifying the overall device structure and insertion procedure while maintaining the caloric bypass function without requiring complex surgical reconstruction
3Quantity of substance
If malabsorption procedures are used to reduce caloric uptake, then weight loss occurs, but patient compliance with dietary restrictions becomes critical and difficult to maintain
Solution Approach 1:
The device performs the caloric restriction function automatically without requiring patient behavioral compliance. The implanted structure physically separates food particles from digestive enzymes and redirects caloric content bypassing the absorptive tissues, regardless of what the patient consumes. This self-service mechanism eliminates the need for patient education, monitoring, and behavioral modification, resolving the compliance contradiction
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 reduces caloric intake by diverting high-calorie fluids and carbohydrates, mimicking the Duodenal switch surgery's metabolic effects without the risks of malnutrition or invasive procedures, promoting behavioral changes through biological feedback.
Implementation Method 1
The wall is permeable in part to fluids and entrained particles
Data Source
AI summary
A novel caloric bypass device that is inserted through the oral cavity and into the digestive tract of a human is disclosed. The device is deliverable as either a unitary or modular structure that preferentially directs a significant volume of the high calorie fluidic components of the chyme through the digestive tract, preventing exposure to the absorptive tissues of the digestive tract and, in some forms, stimulates negative feedback to the patient when simple sugars and carbohydrates are consumed. Also disclosed is a novel method of reducing or restricting caloric intake using this device to prevent or minimize contact with the absorptive tissues of the digestive tract.