Gastric Bypass Using Adjustable Sutures to Prevent Staple Line Failures
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Solution Overview
Problem
Current gastric bypass procedures, such as Roux-en-Y, face issues like staple line failures, metabolic complications, and difficulty in adjustment or reversal, and existing heart valve treatments for mitral regurgitation are limited in reversibility and adjustability.
Innovation Solution
The method involves forming anastomoses between the stomach and intestine to create a bypass without staples, using anastomotic devices with adjustable connectors and shunts that can direct fluid flow, allowing for reversible gastric bypass procedures and heart valve repairs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If staples are used to create gastric pouch in Roux-en-Y procedure, then the stomach can be restricted to limit food intake, but staple line failures occur causing weight regain and exposure to stray staples
Solution Approach 1:
The invention removes staples entirely from the gastric bypass procedure and replaces them with an endoscopic suturing system that creates full-thickness closures using absorbable sutures, thereby eliminating the harmful effect of stray staples while maintaining pouch security
Solution Approach 2:
The invention replaces the mechanical stapling system with an endoscopic suturing mechanism that uses threaded sutures and knots to create secure full-thickness closures, providing equivalent or superior reliability without the harmful byproducts of stapling
2Reliability
If additional suturing techniques are used to prevent staple line failure, then pouch security is improved, but the procedure complexity increases
Solution Approach 1:
The invention combines pouch creation and full-thickness suturing into a single integrated endoscopic procedure, eliminating the need for separate stapling and suturing steps, thereby reducing overall procedure complexity while maintaining or improving pouch security
Solution Approach 2:
The endoscopic suturing device performs multiple functions including pouch closure, full-thickness suturing, and reinforcement in a single instrument system, reducing the number of different devices and techniques needed compared to traditional approaches
3Adaptability or versatility
If gastric pouches are created to restrict food intake, then obesity treatment is achieved, but stenosis and dilation problems occur
Solution Approach 1:
The invention creates a dynamic, adjustable gastric outlet using full-thickness sutures that can be tightened or loosened to control stoma size, allowing the system to adapt to changing patient needs while maintaining patency and preventing both stenosis and dilation
Solution Approach 2:
The invention allows for parameter adjustment of the gastric outlet size through suture tension control, enabling precise regulation of food passage while preventing the extreme conditions of stenosis and dilation that occur with fixed pouches
4Productivity
If Roux-en-Y procedure is performed to bypass intestine, then caloric absorption is reduced for weight loss, but metabolic complications occur due to vitamin and nutrient deficiency
Solution Approach 1:
The invention performs a partial bypass by creating a gastric outlet that can be adjusted to allow sufficient nutrient absorption while still restricting caloric intake, avoiding the excessive bypass of traditional Roux-en-Y that causes metabolic complications
Solution Approach 2:
The invention allows for parameter adjustment of the gastric outlet size to optimize the balance between caloric restriction and nutrient absorption, enabling personalized treatment that achieves weight loss while preventing vitamin and mineral deficiencies
5Productivity
If traditional gastric bypass procedures are performed, then weight loss is achieved, but the procedures are difficult to adjust or reverse
Solution Approach 1:
The invention uses fully absorbable sutures that can be dissolved or removed to reverse the gastric bypass procedure, allowing the original gastric anatomy to be restored if needed, thereby providing a reversible treatment option that maintains weight loss benefits
Solution Approach 2:
The invention creates a dynamic, adjustable gastric outlet using sutures that can be modified after the procedure, allowing for adjustments to be made if weight loss goals are not met or complications arise, providing flexibility that permanent stapled procedures lack
Data Source
AI summary
Methods and devices for treating obesity are provided, and more particularly, methods and devices for performing gastric bypasses are disclosed. In one exemplary embodiment a gastric bypass procedure is provided that includes forming a gastro-entero anastomosis between a stomach and an intestine and forming an entero-entero anastomosis between a portion of the intestine distal to the gastro-entero anastomosis and a portion of the intestine proximal to the gastro-entero anastomosis. A surrogate path is formed between the esophagus and the gastro-entero anastomosis to at least partially direct fluid from the esophagus to the intestine by way of the gastro-entero anastomosis, thereby bypassing the stomach. A variety of devices that are particularly useful in gastric bypass procedures are also disclosed. The devices include anastomotic devices that can be coupled to or integrally formed with a shunt. The devices can include a plurality of tubular bodies that are configured to have an adjustable length. Still further, methods for repairing an abdominal aortic aneurysm and leaking heart valve are also disclosed.