Gastrectomy Apparatus with Steerable Anchor Template
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Solution Overview
Problem
Current methods lack an effective means to create a lumen of desired shape and size in hollow viscus organs, such as the stomach, using the organ's tissue for surgical procedures like gastric sleeve creation without causing significant constriction.
Innovation Solution
An apparatus comprising a flexible tube with steerable, anchor, and adjustable features, along with suction capabilities, is used to guide and secure the tube within the stomach, allowing tissue to be wrapped around it to create a tubular gastric sleeve, ensuring no limiting constriction post-procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional surgical methods are used to create a gastric sleeve, then the procedure can be performed, but significant constriction occurs in the sleeve interior configuration at the stomach incisura area
Solution Approach 1:
The apparatus is positioned and anchored in the stomach before the actual sleeve creation procedure. The template feature is预先 placed to define the desired lumen configuration, and opposing portions of the stomach wall are affixed together along the sides of the template. This preliminary positioning ensures that when the sleeve is formed, the incisura area maintains an open, non-constrictive configuration as predetermined by the template, rather than creating constriction that would occur with traditional sequential surgical steps.
Solution Approach 2:
The apparatus serves as an intermediary template between the surgeon and the final gastric sleeve structure. The template feature with its predetermined lumen configuration acts as a mediator that guides the formation of the sleeve, ensuring the desired non-constrictive interior geometry is achieved. The template is affixed to the stomach wall and used as a guide for creating the sleeve, transferring the desired geometric configuration from the template to the final surgical structure.
2Manufacturing precision
If the apparatus is used to create a lumen of desired shape and size, then a non-constrictive gastric sleeve is achieved, but the device complexity increases
Solution Approach 1:
The apparatus integrates multiple functions into a single device: it includes an anchor feature for securing the device to the stomach wall, a template feature for defining the desired lumen configuration, and a structure that serves as both a guide and a form for the gastric sleeve. This multi-functionality allows the complex geometric control to be achieved through one integrated apparatus rather than multiple separate surgical tools and procedures.
Solution Approach 2:
The apparatus is divided into distinct functional segments: an anchor feature portion for securing, a template feature portion for defining geometry, and connecting structures. This segmentation allows each component to perform its specific function efficiently while maintaining overall device manageability. The template feature itself can be segmented into sections corresponding to different portions of the desired lumen configuration.
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 apparatus effectively creates a gastric sleeve with a non-constrictive interior configuration, functioning as a new gastric reservoir, facilitating surgical procedures by forming a lumen of desired shape and size using the stomach's tissue without causing significant internal constriction.
Implementation Method 1
Manual operation of the suction feature supplies suction pressure along at least a portion of the tube length that draws the tissue of the hollow viscus organ toward the exterior surface of the tube
Data Source
AI summary
A method for performing a gastrectomy (stomach reduction surgery).