Catheter Holding Tool Independent Fixing Prevents Tubular Kinking
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Solution Overview
Problem
Catheters often experience deformation and kinking when detached from containers due to improper sequence of releasing rigid and flexible portions, leading to unintended force application on the tubular portions.
Innovation Solution
A catheter holding tool with an accommodation member and a fixing tool that independently fixes and releases the first holding target portion, ensuring it remains fixed until the tubular portions are detached, preventing kinking by maintaining a specific order of unfixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the rigid portion on the distal side is unfixed first during catheter detachment, then the detachment process can be completed quickly, but unexpected deformation such as deflection occurs in the tubular portion and kink may occur
Solution Approach 1:
The holding portion is designed to preliminarily hold the second holding target portion (proximal rigid portion) in a fixed state before the tubular portion is completely detached from the container. This preliminary fixation prevents the tubular portion from deforming or kinking during the detachment process, while still allowing efficient completion of the detachment sequence.
2Reliability
If the rigid portion on the proximal side is unfixed first during catheter detachment, then the tubular portion is protected from deformation, but the detachment process becomes more complex and time-consuming
Solution Approach 1:
The catheter is divided into multiple holding target portions (distal rigid portion and proximal rigid portion) that can be fixed and unfixed independently. The holding portion is segmented from the main body to allow independent operation of the proximal rigid portion fixation, enabling a simplified detachment sequence where the proximal portion is held first, then the distal portion is detached, and finally the proximal portion is released.
3Device complexity
If no holding portion is provided for the proximal rigid portion, then the device structure remains simple, but the tubular portion is vulnerable to kinking during detachment
Solution Approach 1:
The holding portion acts as an intermediary component between the proximal rigid portion and the main body. It provides a dedicated fixation point for the proximal rigid portion, preventing the tubular portion from kinking during detachment, while maintaining a relatively simple overall structure by being integrated into the existing device architecture rather than adding a completely separate fixation system.
Data Source
AI summary
A catheter holding tool for holding a catheter. The catheter holding tool includes an accommodation member. The accommodation member has a first accommodation portion which accommodates a first tubular portion and/or a second tubular portion of the catheter, a second accommodation portion which accommodates a second holding target portion of the catheter, and a holding portion which holds the second holding target portion when the second holding target portion is accommodated in the second accommodation portion. The catheter holding tool includes a fixing tool to fix the position of the first holding target portion. The fixing and unfixing of the position of the first holding target portion is independent of the holding portion of the accommodation member holding the second holding target portion of the catheter.