Automatic Tube Connector Attachment Mechanism for Injection Safety
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Solution Overview
Problem
The existing fluid delivery systems for multi-dose injections face complexity in reconnecting flow passages and risk contamination due to blood backflow, especially when reusable components are involved.
Innovation Solution
An attaching/detaching device with a fixing portion, holding portions, and a moving portion that automatically connects and disconnects tube connectors, ensuring physical separation after injection to prevent contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual connection and disconnection of tube connectors is used, then the device structure can be simple, but the connection work becomes complicated and time-consuming
Solution Approach 1:
The moving portion automatically moves the holding portion to connect the second tube connector to the first tube connector without requiring manual operation. The system performs the connection work itself through automated mechanical movement, eliminating the need for complicated manual connection procedures while maintaining relatively simple device structure.
2Adaptability or versatility
If reusable flow passages are used, then resource utilization is improved, but contamination risk increases due to blood backflow through the one-way valve
Solution Approach 1:
The second tube connector and associated flow passage are extracted as a disposable component that is connected only temporarily for the injection procedure. After use, the connection is automatically disconnected, removing the potential contamination source from the reusable first tube connector and preventing blood backflow contamination of the reusable portion.
Solution Approach 2:
The connection state of the tube connectors is made dynamic through the moving portion that can automatically connect and disconnect them. This dynamic capability allows the system to transition between connected and disconnected states, enabling the disposable second tube connector to be removed after use while maintaining the reusable first tube connector for future procedures.
3Extent of automation
If automatic connection and disconnection mechanism is implemented, then connection ease is improved, but device complexity increases
Solution Approach 1:
The holding portion and moving portion are combined into an integrated assembly that works together to achieve automatic connection and disconnection. The moving portion is integrated with the injection apparatus, and the holding portion is designed to work in conjunction with it, creating a unified automated system that provides connection automation without excessive complexity.
Data Source
AI summary
A first tube connector and a second tube connector are to be automatically and mechanically attached to and detached from each other. Provided is an attaching/detaching device (100) including: a fixing portion (104) configured to fix a first tube connector (105); a holding portion (107) configured to hold a second tube connector (106); a moving portion configured to move the holding portion (107), which holds the second tube connector (106), in a direction of approaching the first tube connector (105) to connect the second tube connector (106) to the first tube connector (105), and move the second tube connector (106) after the connection in a direction of separating from the first tube connector (105) to release the connection of the second tube connector (106) and the first tube connector (105).