Endoscope Mucous Membrane Lifting Instrument for ESD Working Space
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Solution Overview
Problem
Current endoscopic submucosal dissection (ESD) techniques face challenges in effectively lifting and tensioning the mucous membrane to create a clear working space for precise incision and resection, which can lead to difficulties in visualizing and accessing the target site.
Innovation Solution
A mucous membrane lifting instrument for an endoscope is designed with a configuration that includes a first and second support portion, a pressing portion, and a lifting portion, which are attached to the endoscope to create a space between the submucosal layer and the muscle layer, allowing for tensioning of the mucous membrane and enhancing the working space for ESD procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional endoscopic tools are used without specialized lifting instruments, then the endoscope structure remains simple, but the mucous membrane cannot be effectively lifted and tensioned to create a clear working space
Solution Approach 1:
The lifting instrument is divided into multiple functional components: pressing portions for applying force, lifting portions for creating tension, and support portions for structural stability. This segmentation allows each component to perform its specific function effectively while working together to achieve mucous membrane lifting.
Solution Approach 2:
The lifting instrument is designed to be inserted through the endoscope's insertion portion and mounted on the distal end, nesting within the existing endoscope structure. The instrument's components are arranged concentrically and sequentially, allowing it to be contained within the endoscope's existing pathways.
2Area of stationary object
If the mucous membrane is not properly tensioned, then the endoscope structure remains simple, but the working space for visualization and incision is insufficient
Solution Approach 1:
The lifting instrument creates a third dimension of working space by lifting the mucous membrane away from the underlying muscle layer. The pressing portions apply force in one direction while the lifting portions create tension in another direction, establishing a vertical working space between the submucosal layer and muscle layer for better visualization and access.
3Ease of operation
If a complex lifting instrument is used to create adequate working space, then visualization and access improve, but the instrument becomes more difficult to operate
Solution Approach 1:
The lifting instrument incorporates flexible components that can dynamically adapt to the tissue being manipulated. The lifting portions and support portions are designed with appropriate flexibility to navigate tissue planes and maintain their functional positions during the procedure, allowing operators to manipulate the instrument with ease while maintaining effective lifting action.
Data Source
AI summary
A mucous membrane lifting instrument for an endoscope includes a first support portion which has an outer circumference surface and a longitudinal axis; a second support portion which is provided at a position spaced from the outer circumference surface of the first support portion, and has an outer circumference surface and a longitudinal axis; a pressing portion which has a proximal end and a distal end connected to the proximal end thereof and positioned more distally than the distal end portion of the endoscope; a lifting portion which is connected to the distal end of the pressing portion, extended from the distal end of the pressing portion, and passes through the space between the first support portion and the second support portion; and an attachment member configured to attach both of the first pressing portion and the second pressing portion to the endoscope.