Endoscopic Treatment Tool With Bending Gripper for Lesion Lifting
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Solution Overview
Problem
Existing endoscopic treatment tools require complex operations involving both the treatment tool and the endoscope to grip and lift a lesion part, complicating the procedure and increasing difficulty due to the need for coordinated movements.
Innovation Solution
A treatment tool for an endoscope with an openable and closable grip part and a bendable part, integrated with a transmitting mechanism that allows gripping and lifting of a lesion part through a single operation of the tool, using a first transmitting member to close the grip part and a second member to bend the part in response to a pushing-in operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a grip forcep and an incision tool are used separately in two different insertion channels, then gripping and incision functions are achieved, but the operation becomes complicated requiring coordinated movements of multiple tools
Solution Approach 1:
The patent combines the grip forcep and incision tool into a single integrated treatment tool that can perform both gripping and incision functions. The tool includes a grip part with grip claws for gripping the lesion part, and an incision part with an incision blade for cutting. This integration eliminates the need to coordinate two separate tools, simplifying the operation while maintaining both functional capabilities.
Solution Approach 2:
The treatment tool is designed as a multi-functional instrument that can perform multiple operations including gripping the lesion part, lifting it by bending the insertion part, and incising it. The single tool replaces multiple specialized tools, allowing the practitioner to complete the entire procedure with one instrument rather than coordinating movements of separate forceps and incision tools.
2Ease of operation
If the endoscope bends to lift the lesion part, then the lesion part is elevated, but the visual field moves in response making treatment more difficult
Solution Approach 1:
The treatment tool separates the gripping function from the bending function. The grip part remains stationary relative to the insertion part, while the bendable part is specifically designed to bend independently to lift the lesion part. This segmentation allows the grip part to maintain a stable position for incision while the bendable part provides the lifting motion, preventing visual field movement that would occur if the entire endoscope had to bend.
Data Source
AI summary
As a wire moves in a first direction, which is an operating part side, relative to a grip part and a bendable part, the grip part is closed, and the bendable part is bent in a state where the grip part is closed. A coil spring is moved in a second direction, which is a distal end part side, in response to a pushing-in operation with respect to a piston and moves the wire in the first direction relative to the grip part and the bendable part by pushing the grip part and the bendable part in the second direction as being moved in the second direction.