Endoscope Holding Device Tissue Displacement Overtube
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Solution Overview
Problem
In Natural Orifice Translumenal procedures, the limited access and hindrance from surrounding internal organs complicate the operative field, making it difficult to perform tasks effectively with existing endoscope systems.
Innovation Solution
An endoscope holding device with a spatula part that displaces body tissue to secure an operative field, featuring a through hole for locking the endoscope insertion part and a plate-like body for occluding space, allowing the endoscope to be freely moved and preventing slipping, while maintaining a compact integration with the overtube.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multifunctional instrument (overtube) with expansion member is used to expand working space, then the ability to perform various treatments is improved, but the device complexity increases
Solution Approach 1:
The overtube is divided into distinct functional segments: the insertion part for access, the displacement part with curved displacement face for tissue manipulation, and the locking portion for securing the endoscope. This segmentation allows each component to perform its specific function independently, reducing overall system complexity while maintaining versatility
Solution Approach 2:
The displacement part serves multiple functions: it displaces body tissue to secure operative field, provides structural support for endoscope locking, and maintains the integrity of the overtube structure. This multi-functionality reduces the need for separate components, thereby reducing device complexity while enhancing adaptability
2Ease of operation
If the endoscope insertion part is freely movable within the overtube, then the ease of operation is improved, but the reliability of positioning decreases
Solution Approach 1:
The system transitions from a static to a dynamic state: the endoscope insertion part can move freely within the overtube for easy positioning and operation, but when the locking portion engages with the displacement part, it transitions to a fixed state that ensures reliable positioning. This dynamic capability allows the system to satisfy both ease of operation and positioning reliability requirements at different stages of the procedure
3Adaptability or versatility
If the displacement part is positioned apart from the distal end face, then the ability to displace tissue is improved, but the device complexity increases
Solution Approach 1:
The displacement part is merged with the insertion part as an integrated structure rather than a separate component. The curved displacement face is formed as part of the insertion part's structure, positioned at an appropriate distance from the distal end face. This merging reduces the number of separate components and simplifies the overall device structure while maintaining the tissue displacement capability
Data Source
AI summary
An endoscope holding device includes an insertion part that is long and holds the distal end part of an endoscope so as to freely protrude and retract; a distal end face that specifies a protruding direction of the endoscope, and is formed at the distal end of the insertion part, a displacement part which has a displacement face that is curved from the distal end toward a proximal end and provided at a position apart from the distal end face in order to displace living body tissue in front of the insertion part to secure a space for operating the distal end part of the endoscope protruded from the distal end face to curve; and a fixing portion that fixes the displacement part and the insertion part such that the distal end side of the displacement face intersects a direction orthogonal to the distal end face.