Treatment Tool Holder Structure for Driver Insulation and Assembly
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Solution Overview
Problem
Existing treatment tools for living tissues face challenges in assembly and disassembly complexity, potential component deterioration due to direct contact, and increased manufacturing costs due to the insertion of flexible wires into elongated sheaths.
Innovation Solution
The treatment tool design includes a holder with a groove structure that separates and insulates the first and second drivers (electrically conductive wires) and a transmission shaft, allowing easy assembly and disassembly, reducing component wear, and maintaining electrical insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first driver and second driver are directly inserted into the sheath without separation structure, then the assembly structure is simpler, but the drivers will deteriorate due to direct contact and friction
Solution Approach 1:
The holder is segmented into multiple functional regions: a groove for inserting drivers, an intervening portion that separates adjacent drivers, and a storage portion. This segmentation protects drivers by providing dedicated spaces and separation structures, reducing direct contact and friction between components while maintaining organizational simplicity.
Solution Approach 2:
The intervening portion acts as an intermediary structure between the first driver and second driver. It physically separates the drivers within the holder, preventing direct contact and reducing wear. This mediator structure achieves component protection without requiring complex external mechanisms.
2Ease of manufacture
If flexible wires are inserted into elongated sheaths without intermediate structures, then the manufacturing process is simpler, but assembly and disassembly become complex and costly
Solution Approach 1:
The holder is pre-configured with grooves, intervening portions, and storage portions before driver insertion. This preliminary structuring of the holder enables straightforward assembly by guiding drivers into predetermined positions and simplifies disassembly by providing clear separation structures, reducing both manufacturing complexity and operational difficulty.
Solution Approach 2:
The holder provides a nested structure where drivers are inserted into grooves within the holder, which itself is inserted into the sheath. This nesting arrangement organizes multiple components in a hierarchical manner, making assembly and disassembly systematic and straightforward while maintaining compact overall structure.
3Reliability
If drivers are closely arranged in the holder without intervening portions, then the holder size is smaller, but electrical insulation between drivers cannot be ensured
Solution Approach 1:
The holder incorporates an intervening portion with different material properties or structural characteristics at specific locations where electrical insulation is needed. This localized modification provides electrical insulation between drivers only where required, rather than uniformly increasing the entire holder volume, achieving insulation while maintaining compact dimensions.
Data Source
AI summary
A treatment tool includes: a sheath; a treatment portion that is capable of treating a living tissue and is provided at a distal end of the sheath; a first driver and a second driver that are inserted in the sheath and are capable of driving the treatment portion; and a holder that is inserted in the sheath, and holds the first driver and the second driver. The holder includes a groove in which the first and second driver are inserted, and an intervening portion provided in the groove and arranged between the first driver and the second driver in a cross section perpendicular to a longitudinal direction of the groove that extends from a distal end to a proximal end of the holder.