Rotatable Fluid Transfer Device with Piercing Protection
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Solution Overview
Problem
Existing fluid transfer devices often lock fluid containers in unfavorable positions, making it difficult to read volume indications and increasing the risk of exposure to hazardous fluids and piercing members during handling, particularly in medical settings.
Innovation Solution
A fluid transfer device with a first locking mechanism that prevents the first connection part from turning in a predetermined direction, allowing easy and safe turning of attached fluid containers, and featuring a piercing member protection system that secures the piercing member to prevent exposure, with a stabilization member to prevent bending or breaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the fluid transfer device locks the first connection part in a fixed position, then the device structure is simplified, but the ability to read volume indications on attached fluid containers is impaired
Solution Approach 1:
The first connection part is designed with rotatable capability relative to the second connection part, transforming a static locking structure into a dynamic system. This allows the connection part to be rotated to favorable positions for reading volume indications while maintaining secure attachment, thus resolving the contradiction between structural simplicity and operational ease.
2Ease of operation
If the device allows free rotation of the first connection part, then access to volume indications is improved, but the risk of accidental disconnection increases
Solution Approach 1:
The connection part employs a dynamic locking mechanism that permits rotation during operation but prevents unintended disconnection. This dynamic design allows favorable positioning for reading volume indications while maintaining secure attachment, thus resolving the contradiction between operational ease and connection reliability.
3Productivity
If the piercing member is left exposed for easy access, then fluid transfer efficiency is improved, but the risk of staff exposure to hazardous fluids and sharp tips increases
Solution Approach 1:
The piercing member is nested within a protective sheath that can be retracted or moved aside during active use. This nested configuration provides protection during storage and transport while allowing easy access during fluid transfer operations, thus resolving the contradiction between productivity and safety.
Solution Approach 2:
A protective sheath acts as an intermediary between the piercing member and the external environment. This intermediary structure provides protection when not in use while allowing quick access when needed, thus resolving the contradiction between productivity and safety.
4Object-affected harmful factors
If the piercing member is fully protected, then staff safety is improved, but the ease of use and accessibility of the piercing member deteriorates
Solution Approach 1:
The piercing member is nested within a protective sheath that can be quickly retracted or moved aside. This nested design provides full protection during storage while maintaining easy accessibility during use, thus resolving the contradiction between safety and ease of operation.
Solution Approach 2:
The protective sheath is pre-positioned to cover the piercing member, and its retraction or movement is designed to be a simple preliminary action. This allows full protection during storage while enabling quick access when needed, thus resolving the contradiction between safety and ease of operation.
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
The present invention concerns a fluid transfer device for transferring fluid from a first fluid container to a second fluid container such as a piercing member protection device. The fluid transfer device comprises a longitudinal axis A, a first connection part comprising connection means for connecting to said first fluid container. The fluid transfer device further comprises a second connection part rotably mounted to the first connection part by mounting means, the second connection part further comprises connection means for connecting said second fluid container. The mounting means enable turning of said second connection part with respect to said first connection part. The present invention effectively allows a user to safely turn e.g. a syringe after assembly to read a volume indication or similar.