Repositionable Over-the-Scope Clip for Visual Placement Review
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Solution Overview
Problem
Current endoscopic closure devices, particularly over-the-scope clips, are difficult to use, time-consuming, and often insufficient for certain perforations or anatomies, as they require deployment without direct visual confirmation and cannot be easily repositioned.
Innovation Solution
A clipping system with an adapter and clip configuration allowing for an insertion, initial deployed, and review configuration, enabling visual confirmation and adjustment of clip placement before final deployment, using extending members with angled holes and keyhole openings for controlled movement between configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If current over-the-scope clips are deployed without direct visual confirmation, then the deployment process is simpler, but the precision and reliability of clip placement deteriorates
Solution Approach 1:
The clip is designed to be dynamically repositionable between multiple configurations (insertion, initial deployed, review, and repositioning configurations). The extending members allow the clip to move between these states, enabling the operator to visually confirm placement in the review configuration before final deployment, thus resolving the contradiction between operational simplicity and placement precision.
Solution Approach 2:
The system provides visual feedback by allowing the operator to view the clip in the review configuration through the endoscope before final deployment. This feedback mechanism enables verification of clip placement accuracy, addressing the precision requirement while maintaining ease of operation through the automated extending member mechanism.
2Device complexity
If current over-the-scope clips are deployed without repositioning capability, then the device structure is simpler, but the adaptability to different tissue defects deteriorates
Solution Approach 1:
The clip incorporates dynamic repositioning capability through the extending members that can be moved to transition the clip between insertion, initial deployed, review, and repositioning configurations. This dynamic structure enables adaptability to different tissue defect locations and sizes while maintaining reasonable structural complexity through the use of existing endoscopic components.
Solution Approach 2:
The extending members serve multiple functions: they act as deployment mechanisms, allow visual verification through the review configuration, and enable repositioning for different anatomical locations. This multi-functionality achieves high adaptability without proportionally increasing device complexity.
3Measurement precision
If the clip is physically separated from the adapter to enhance visual observation, then the visibility and measurement precision improve, but the device complexity increases
Solution Approach 1:
The extending members enable dynamic separation and reconnection of the clip from the adapter through controlled movement. The enlarged distal ends can be inserted into and removed from the keyhole openings, allowing the clip to be physically separated for visual observation in the review configuration while maintaining a relatively simple mechanism based on existing endoscopic components.
Data Source
AI summary
A clipping system includes an adapter, a clip and an extending member. The adapter mounted over an insertion device. The clip mounted over the adapter and includes first and second jaws connected to one another such that the jaws are movable between an insertion configuration and an initial deployed configuration. The first jaw includes a keyhole opening. The member coupled to the clip and adapter. The member includes a distal end releasably engaging the opening. The distal end has a width smaller than a width of a first portion of the opening and larger than a second portion of the opening so that, when a portion of the member proximal of the distal end is received within the second portion, the adapter is released from the clip while the member remains coupled to the clip. The member forces the clip open as the clip retracts over the adapter.