Endoscopic Repositional Clip With Extension for Visual Placement
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Solution Overview
Problem
Current endoscopic closure devices, particularly over-the-scope clips, are difficult to use, time-consuming, and insufficient for certain perforations and anatomies due to the inability to reposition the clip after deployment, which is deployed without direct visual confirmation and may obstruct the field of view.
Innovation Solution
A clipping system with an adapter and extending members that allows the clip to be moved between insertion, initial deployed, and review configurations, enabling visual confirmation and adjustment before final deployment, using a deployment member and extending members to facilitate repositioning and visibility of the clip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current over-the-scope clips are deployed without direct visual confirmation, then deployment speed is improved, but placement precision deteriorates
Solution Approach 1:
The clip system transitions from a static deployed state to a dynamic reconfigurable state. The extending member allows the clip to be repositioned after initial deployment by converting the system from a fixed configuration to one that can be dynamically adjusted, enabling both rapid deployment and precise placement correction
Solution Approach 2:
The extending member acts as an intermediary between the clip and the insertion device. It provides a mechanical connection that allows force transmission for repositioning the clip after deployment, serving as a mediator that enables adjustment without requiring complete redeployment
2Loss of time
If current over-the-scope clips are deployed without visual confirmation, then deployment time is reduced, but operational reliability deteriorates
Solution Approach 1:
The system performs preliminary deployment action to secure the clip in place, then enables subsequent verification and adjustment actions. The extending member is prepared in advance to allow repositioning if visual confirmation reveals improper placement, ensuring both time efficiency and reliability
Solution Approach 2:
The system incorporates visual feedback by allowing the operator to observe the clip after deployment through the endoscope. The extending member enables adjustment based on this visual feedback, creating a closed-loop control system that improves reliability while maintaining efficiency
3Device complexity
If the clip is deployed in a fixed position, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The system is segmented into distinct functional components: the insertion device, the extending member, and the clip. This segmentation allows the extending member to be selectively engaged or disengaged, providing repositioning capability when needed while maintaining simplicity for standard deployments
Solution Approach 2:
The extending member provides multiple functions: it serves as a deployment aid during initial placement, then becomes a repositioning mechanism if adjustment is needed, and finally can be disengaged for permanent fixation. This multi-functionality adds adaptability without significantly increasing overall device complexity
4Reliability
If the clip obstructs the field of view during deployment, then closure effectiveness is improved, but visibility deteriorates
Solution Approach 1:
The system dynamically adjusts the relative positions of the clip and the endoscope. The extending member allows the clip to be repositioned to optimize both closure effectiveness and visual access, enabling the operator to achieve proper closure while maintaining adequate field of view for verification
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 precise placement and adjustment of the clip before final deployment, enhancing usability and visibility during the procedure, thereby improving the effectiveness and efficiency of endoscopic tissue closure.
Implementation Method 1
The first jaw and second jaws are connected via first and second hinges so that the first and second jaws are movable between an insertion configuration, in which the first and second jaws are separated from one another and an initial deployed configuration in which the first and second jaws are drawn toward one another
Implementation Method 2
A deployment member configured to move the clip distally over and off of the adapter so that, as the clip leaves the adapter, the clip moves from the insertion configuration to the initial deployed configuration
Implementation Method 3
An extending member is releasably coupled to the clip and movably connected to the adapter, the extending member being configured to permit the withdrawal of the adapter proximally away from the clip while the extending member remains coupled to the clip
Implementation Method 4
The extending member is operable to retract the clip proximally over the adapter so that the clip is forced open as the clip is retracted over the adapter freeing the clip from on which it had been clipped
Data Source
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AI summary
A clipping system includes an adapter mounted on an insertion device and a clip including first and second jaws connected via hinges so that the first and second jaws are movable between an insertion configuration and an initial deployed configuration. A deployment member is configured to move the clip distally over and off of the adapter so that, as the clip leaves the adapter, the clip moves from the insertion configuration to the initial deployed configuration. An extending member is releasably coupled to the clip and movably connected to the adapter, and is configured to permit the withdrawal of the adapter away from the clip while the extending member remains coupled to the clip to place the system in a review configuration. The extending member is operable to retract the clip over the adapter, freeing the clip from tissue on which it had been clipped.