Steerable Over-the-Scope Clip for Visual Repositioning

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Solution Overview

Problem

Current endoscopic closure devices, particularly over-the-scope clips, are difficult to use, time-consuming, and often require deployment without visual confirmation, making them inadequate for certain perforations and anatomies, and are incapable of repositioning once deployed.

Innovation Solution

A steerable over-the-scope clipping system with an adapter and control wires allows for visual confirmation and adjustment of clip placement before final deployment, featuring a clip that can be moved between insertion, initial deployed, and review configurations via steering members and control wires, enabling repositioning and enhanced visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If current over-the-scope clips are deployed from a position where the clip is not visible to the operator, then the deployment mechanism is simplified, but visual confirmation of clip placement is lost and repositioning becomes impossible

Engineering Contradiction:

Improvedeployment mechanism simplicityVSAvoidvisual confirmation of clip placement

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The clip device is nested within the adapter assembly, which itself is nested within the endoscope system. The clip, extending member, and control wire are contained within the adapter, allowing the operator to manipulate the clip through the adapter structure while maintaining visual observation through the endoscope.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The adapter serves as an intermediary device between the operator and the clip. It provides a interface that allows the operator to control the clip's deployment and repositioning while maintaining visual contact with the clip through the endoscope's imaging system.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If current over-the-scope clips are deployed without the ability to see the clip, then the device structure is simpler, but the time required for proper positioning increases and accuracy decreases

Engineering Contradiction:

Improvedevice structureVSAvoidtime to position clip

Core Design Contradiction:

Device complexityVSLoss of time

Solution Approach 1:

The system provides visual feedback to the operator through the endoscope's imaging system, allowing real-time observation of the clip's position and deployment status. This feedback loop enables the operator to make immediate adjustments to achieve proper positioning without time-consuming trial and error.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The clip device incorporates dynamic components including the extendable extending member and controllable wire system that allow the clip to be moved between deployed and repositioned states. This dynamic capability enables rapid adjustment of clip position without requiring complete device replacement or complex manual manipulation.

Inventive Principle:

Principle #15Dynamics

3Productivity

If current over-the-scope clips are deployed without visual confirmation, then the deployment process is faster, but the accuracy of clip placement on target tissue is reduced

Engineering Contradiction:

Improvedeployment speedVSAvoidclip placement accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The system replaces blind mechanical deployment with visually-guided deployment. The endoscope's imaging system substitutes for the lack of direct visual contact, allowing the operator to see the clip's position relative to the target tissue while maintaining the mechanical deployment mechanism's speed and simplicity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The operator can preliminarily position the clip and adapter assembly in the desired location before final deployment. The extending member can be advanced to bring the clip into position while the operator visually confirms alignment with the target tissue, ensuring accurate placement before the clipping action is completed.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250352221A1Steerable platform repositionable over the scope clip

Publication Date: 2025.11.20 BOSTON SCI MEDICAL DEVICE LTD

AI summary

A clipping system for treating tissue including an adapter, a clip, an extending member and a control wire. The adapter couplable to an insertion device via steering members. The steering members extend alongside the insertion device and connect to the adapter to steer the adapter between a first position and a second position. The clip mounted over the adapter. The clip includes first and second jaws connected to one another and movable between an insertion configuration and an initial deployed configuration. The extending member slidably received within one of the steering members. The control wire slidably received within the extending member and extends through the first jaw such that simultaneous longitudinal movement of the control wire and the extending member relative to the adapter moves the clip between the insertion configuration, the initial deployed configuration, and a review configuration in which the clip is separated from the adapter.