Gastrointestinal Bypass Instrumentation Using Linear Stapler Guide Means
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Solution Overview
Problem
Current gastrointestinal bypass instrumentation is invasive, time-consuming, and poses high post-operative risks due to the need for large intestinal sections and incomplete verification of anastomosis integrity, particularly during gastroenteroanastomosis and enteroenteroanastomosis procedures.
Innovation Solution
The use of a linear stapler with guide means to create and verify gastroenteroanastomosis and enteroenteroanastomosis by forming loops and incisions that allow for precise tissue joining and integrity restoration, with a seal test to ensure anastomosis effectiveness, while minimizing the operation area and maintaining tissue continuity until completion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If circular staplers are used to create gastroenteroanastomosis, then the anastomosis can be formed, but large sections of the intestine must be used and the operation remains invasive
Solution Approach 1:
The intestine is divided into specific segments or loops that can be independently manipulated and brought together for anastomosis. The method creates specific intestinal loops (first and second loops) that are brought close together at defined locations, allowing precise control over the sections used without requiring large intestinal resections.
Solution Approach 2:
A guide means is introduced as an intermediary element to facilitate the bringing together of intestinal loops. The guide means provides a structured pathway or framework that enables precise alignment and connection of intestinal segments, reducing the need for extensive manual manipulation and large tissue sections.
2Productivity
If conventional surgical methodology is used, then gastrointestinal bypass can be performed, but the procedure is invasive with high post-operative risks and long execution time
Solution Approach 1:
The guide means is preliminarily positioned or prepared before the actual anastomosis procedure. Intestinal loops are pre-formed and positioned according to the guide means, allowing the surgeon to proceed with the connection without time-consuming manipulation during the critical anastomosis phase, thereby reducing overall operation time.
Solution Approach 2:
The method replaces complex manual surgical techniques with a more systematic approach using the guide means. This substitution of mechanical methodology streamlines the procedure, reduces surgical complexity, and minimizes operative time while maintaining anastomosis quality.
3Ease of operation
If large areas of the abdomen are covered during surgery, then adequate access to intestinal structures is achieved, but the invasiveness of the procedure increases
Solution Approach 1:
The guide means enables localized access and manipulation of intestinal structures at specific abdominal sites. Rather than requiring broad exposure of the entire abdomen, the procedure focuses on creating and connecting specific intestinal loops at defined locations, thereby limiting the operational area while maintaining ease of access to the necessary structures.
4Adaptability or versatility
If preliminary section of the intestine is performed, then the bypass can be created, but considerable experience is required to evaluate correct cutting length and recognize sectioned flaps
Solution Approach 1:
The guide means serves as an intermediary that simplifies the identification and connection of intestinal sections. By providing a structured framework or visual guide, it reduces the cognitive load and skill requirement for evaluating cutting length and recognizing flaps, making the procedure more accessible to surgeons with varying levels of experience.
Data Source
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AI summary
An instrumentation for carrying out a gastrointestinal bypass comprises means for bringing close together a first tissue portion (12) of the intestine and second tissue portion (14) of the stomach by realising a first intestine loop (A), means for creating a gastroenteroanastomosis (16) between the two close tissue portions, for example a linear stapler, maintaining or restoring the continuity of the intestinal duct after the realisation of the gastroenteroanastomosis, means for bringing close together an additional first tissue portion (18) of the intestine, arranged distally with respect to the gastroenteroanastomosis (16) with reference to the natural flow of the food along the intestinal duct, and an additional second tissue portion (20) of the intestine arranged proximally with respect to the gastroenteroanastomosis (16) with reference to the natural flow of the food along the intestinal duct, realising a second loop (B) of the intestine, wherein said additional second tissue portion (20) of the intestine arranged proximally with respect to the gastroenteroanastomosis (16) is brought close to the gastroenteroanastomosis (16), means for creating an enteroenteroanastomosis (22) between the two close tissue portions of the intestine, maintaining or restoring the continuity of the intestinal duct after the realisation of the enteroenteroanastomosis, and means for sectioning the intestine between the gastroenteroanastomosis (16) and the enteroenteroanastomosis (22).