Endoscopic Clip Arms With Switchable Pivot Modes for Tangential Clipping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing clip devices for endoscopic treatments face challenges in efficiently maneuvering and securing biological tissue due to limitations in the control and alignment of clip arms, particularly when using a tangential approach in narrow lumens.
Innovation Solution
The clip device incorporates a clip unit with independently pivotable arms that can transition between normal and swing modes, allowing for enhanced control and alignment, and a detachable sheath and holder system for easy reloading and separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the clip arms are designed to pivot independently, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The clip unit is divided into separate arms (first arm and second arm) that can pivot independently relative to the holder. This segmentation allows each arm to be controlled separately for precise tissue manipulation, while the modular design actually reduces overall system complexity by allowing independent optimization of each component.
2Adaptability or versatility
If the arms can transition between normal mode and swing mode, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The clip arms are designed with dynamic pivot capabilities that allow transition between normal mode (independent pivoting) and swing mode (coordinated movement). This dynamic design enables the same mechanical structure to perform multiple functions - independent arm control for precise positioning and coordinated swing motion for efficient tissue engagement - without requiring separate mechanisms for each mode.
Solution Approach 2:
The holder and arm assembly is designed as a multi-functional unit that can operate in different modes (normal mode and swing mode) depending on the surgical requirements. The same mechanical components serve multiple purposes: the pivot joints enable both independent arm movement and coordinated swing motion, making the device adaptable to various surgical scenarios including tangential approaches in narrow lumens.
3Ease of operation
If a detachable sheath and holder system is used, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The applicator is segmented into detachable components including the sheath and the holder. This allows the operator to easily assemble and disassemble the device for reloading clip units, improving ease of operation during surgical procedures. The detachable design enables quick replacement of consumable parts while maintaining the integrity of the main applicator body.
Data Source
AI summary
A clip device includes a clip unit having arms that open and close in a front direction and a holder that supports the arms to be pivotable in opening and closing directions, a sheath that is detachably connected to the clip unit, and a wire that passes through the sheath and is detachably connected to the arms, in which the arms have a first arm and a second arm, and the arms are able to transition between a first mode in which the first arm and the second arm pivot independently and a second mode in which the first arm, which pivots in an opening direction of the opening and closing directions, causes the second arm to pivot in a closing direction of the opening and closing directions.