Endoscopic Tool With Protruding Electrode for Marking and Incision
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Solution Overview
Problem
Existing endoscopic treatment tools, such as high-frequency knives, require frequent replacement for different functions like tissue marking and incision, necessitating multifunctionality to avoid tool changes during procedures like ESD.
Innovation Solution
An endoscopic treatment tool with a sheath, rod, electrode, and insulator design where the electrode protrudes radially from the insulator, allowing for both tissue marking and incision without tool exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single endoscopic treatment tool is used for both tissue marking and incision, then tool replacement frequency is reduced and procedural efficiency is improved, but the device complexity increases due to the need for multifunctional design
Solution Approach 1:
The endoscopic treatment tool is designed with dual functionality to perform both tissue marking and incision procedures. The electrode can be configured to deliver different types of energy (e.g., low-power for marking, high-power for incision) allowing a single tool to replace multiple specialized tools, thereby improving procedural efficiency and reducing tool replacement frequency
Solution Approach 2:
The treatment tool incorporates adjustable parameters such as variable power output and selectable treatment modes that allow dynamic adaptation during procedures. This enables the same physical tool to deliver different treatment characteristics based on the specific clinical need, resolving the contradiction between simplicity and multifunctionality
2Reliability
If the electrode protrudes radially from the insulator, then tissue marking and incision effectiveness is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The treatment tool is divided into distinct functional segments: the insulator portion and the protruding electrode portion. This segmentation allows each component to be manufactured and tested independently, with the electrode protrusion distance and positioning controlled during assembly rather than requiring extremely tight tolerances on the electrode itself, thus maintaining reliability while reducing overall manufacturing precision requirements
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
Enables effective tissue marking and incision in a single tool, enhancing procedural efficiency by eliminating the need for tool replacement during ESD procedures.
Implementation Method 1
an electrode connected to a distal end of the rod
Data Source
AI summary
An endoscopic treatment tool can include a sheath, a rod arranged on a distal side of the sheath, an electrode connected to a distal end of the rod, and an insulator located distally relative the electrode, wherein at least a portion of the electrode protrudes outward, in a radial direction of the rod, from an outer surface of a proximal end of the insulator.