Wide Rotating Clip for Endoscopic Tissue Defect Closure
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Solution Overview
Problem
Current endoscopic clipping devices face challenges in effectively treating mid-range to larger tissue defects in the gastrointestinal tract, as they often require multiple clips or cumbersome suturing, and existing through-the-scope clips struggle to position and close larger defects efficiently.
Innovation Solution
A novel endoscopic clipping device featuring a capsule with pivotally coupled jaws and clip arms that can transition between open and closed configurations, allowing the jaws to rotate from an insertion to a tissue-receiving position, enabling the device to grip larger tissue defects with a single application, similar to traditional through-the-scope clips but with enhanced capability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple through-the-scope clips are used to treat mid-range defects, then the defect can be closed, but the positioning becomes difficult and the procedure complexity increases
Solution Approach 1:
The patent combines multiple clipping functions into a single integrated device. The wide rotating clip integrates the functionality of multiple through-the-scope clips into one device with a wider jaw structure, allowing it to span and close larger defects that would otherwise require multiple separate clips to be positioned and deployed individually
Solution Approach 2:
The patent introduces rotational movement as an additional degree of freedom. The jaws can rotate relative to the clip arms, transitioning from an insertion configuration to a tissue-receiving configuration. This rotational capability allows the device to adapt its orientation and achieve proper positioning more easily, reducing the complexity associated with manual positioning of multiple clips
2Reliability
If over-the-scope clips are used for mid-range defects, then closure is achieved, but the positioning difficulty increases
Solution Approach 1:
The patent employs dynamic, movable components rather than fixed structures. The jaws are pivotally coupled to the clip arms, allowing them to move between insertion and tissue-receiving configurations. This dynamic design enables the device to self-adjust during deployment, making positioning easier and more intuitive compared to static over-the-scope clips that require precise pre-positioning
Solution Approach 2:
The device is pre-configured with jaws in an insertion configuration where the longitudinal axes are aligned with the clip arms. This preliminary arrangement facilitates smooth passage through the endoscope and automatic transition to the tissue-receiving configuration upon deployment, reducing the operator's burden in achieving proper positioning
3Reliability
If suturing is used for larger defects, then closure is achieved, but the procedure becomes cumbersome
Solution Approach 1:
The patent replaces the complex mechanical process of suturing with a simpler clipping mechanism. Instead of requiring needle passage, thread manipulation, and knot tying associated with suturing, the device uses a spring-loaded jaw closure system that achieves defect closure through mechanical compression and tissue apposition, significantly reducing procedural complexity while maintaining closure effectiveness for larger defects
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
The device effectively treats larger tissue defects with a single application, reducing the need for multiple clips and simplifying the procedure by allowing the jaws to pivot and grip tissue more efficiently, addressing the limitations of existing technologies in closing mid-range to larger defects.
Implementation Method 1
each of the pair of jaws may be biased toward the tissue-receiving configuration via a torsion spring so that the pair of jaws are restrained toward the insertion configuration via the retaining structures when the clip arms are in the closed configuration
Implementation Method 2
each of the pair of jaws may be elastically deformable toward a straightened configuration, when the pair of clip arms is in the closed configuration
Data Source
AI summary
A clipping device includes a capsule and a pair of clip arms, proximal ends of the clip arms slidably received within the channel of the capsule such that the clip arms are movable relative to the capsule between an open configuration and a closed configuration. The clipping device also includes a pair of jaws, each of the jaws pivotally coupled to a corresponding one of the clip arms and movable relative to the clip arms between an insertion configuration, in which longitudinal axes of the pair of jaws are substantially aligned with longitudinal axes of the clip arms, and a tissue-receiving configuration, in which the longitudinal axes of the pair of jaws extend transverse to the longitudinal axes of the clip arms, the pair of jaws movable toward the tissue-receiving configuration when the pair of clip arms are in the open configuration.