Needle Guide Jig for Syringe Attachment Safety
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Solution Overview
Problem
Conventional methods for attaching and detaching needle members from syringe units are cumbersome and pose safety risks due to manual handling and potential deformation or injury from high-viscosity conductive resins used in dispenser applications.
Innovation Solution
A needle attachment and detachment assist device featuring a frame body with a syringe guide jig and a needle guide jig that securely holds and guides the needle member, preventing rotation and ensuring safe attachment or detachment by screwing the needle member into a luer-lock-type joint, thereby minimizing contact risks and improving handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual handling of needle member is used, then operation simplicity is maintained, but safety and handling ease deteriorate due to deformation risk and injury from high-viscosity conductive resins
Solution Approach 1:
A guide jig is introduced as an intermediary tool between the operator and the needle member. The guide jig includes a guide hole for the syringe and a needle insertion hole with a rib guide groove, allowing the operator to safely attach and detach the needle member without direct manual handling, thus preventing deformation and injury while maintaining operational simplicity
Solution Approach 2:
The guide jig is divided into functional segments: a syringe guide portion with a guide hole, and a needle guide portion with a needle insertion hole and rib guide groove. This segmentation allows each part to perform its specific function - guiding the syringe and securing the needle member respectively - improving overall handling safety and ease
2Reliability
If tight clamping operation is performed manually, then attachment reliability is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The guide jig serves as a mediator that provides a structured method for achieving tight clamping. The rib guide groove in the needle insertion hole guides the rib of the needle member, ensuring proper alignment and secure attachment to the syringe without requiring complex manual manipulation or additional tools
Solution Approach 2:
The guide jig is prepared in advance with the guide hole and needle insertion hole positioned correctly. This preliminary preparation ensures that when the syringe and needle member are inserted, they are automatically aligned for secure attachment, eliminating the need for complex real-time adjustment operations
Data Source
AI summary
A needle attachment and detachment assist device includes a frame body, a syringe guide jig, and a needle guide jig. A guide hole is formed in the syringe guide jig. In the needle guide jig, a needle insertion hole is formed on a central axis of the guide hole. The needle insertion hole includes a center hole portion and a rib guide groove. When a syringe is inserted into the guide hole, and a needle member is further inserted into the needle insertion hole, rotation prevention of the needle member is achieved. In this state, when the syringe is rotated in a first direction, the needle member can be clamped to a thread portion of the syringe. When the syringe is rotated in a second direction, the needle member can be loosened.