Quick Release Drug Vial Adapter with Snap Fit Flex Member
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Solution Overview
Problem
Existing dual vial adapter assemblies, such as the Zinger and Denenburg assemblages, face difficulties in securely detaching the drug vial adapter from the drug vial, especially with gloved hands, and often result in incorrect detachment of the liquid vial adapter before initial aspiration, deviating from the intended administration protocol.
Innovation Solution
The introduction of a quick release drug vial adapter with a snap fit flex member pair and upright finger grip extensions that allow for easy detachment by inwardly flexing the snap fit flex member pair, ensuring the drug vial adapter cannot be removed until the liquid vial adapter is detached, thus enforcing correct protocol adherence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a telescopic snap fit mounting is used for the drug vial adapter, then the initial attachment is secure, but the detachment becomes difficult especially with gloved hands
Solution Approach 1:
The release mechanism is segmented into two distinct operations: first detaching the liquid vial adapter from the drug vial adapter, and second detaching the drug vial adapter from the drug vial. This segmentation ensures that the secure snap fit attachment is maintained during the critical initial aspiration phase, while allowing controlled release when needed.
Solution Approach 2:
The system requires preliminary detachment of the liquid vial adapter before the drug vial adapter can be removed. This preliminary action enforces the correct administration protocol and prevents premature removal that could compromise patient safety.
2Ease of operation
If the drug vial adapter can be freely detached, then ease of operation is improved, but incorrect usage and premature removal occur
Solution Approach 1:
The system implements preliminary anti-action by preventing the removal of the drug vial adapter until the liquid vial adapter has been detached. This reverse constraint ensures that the correct sequence of operations is followed, maintaining protocol adherence while still allowing ease of operation when the proper sequence is used.
Solution Approach 2:
The drug vial adapter serves as an intermediary element that mediates between the liquid vial adapter and the drug vial. It cannot be directly removed from the drug vial until the liquid vial adapter is detached, thus enforcing the correct usage sequence without compromising operational ease.
3Reliability
If a secure connection is maintained throughout the process, then reliability is improved, but the ability to detach for subsequent infusion is compromised
Solution Approach 1:
The connection system is segmented into two independently controllable interfaces: the connection between the liquid vial adapter and drug vial adapter, and the connection between the drug vial adapter and drug vial. This allows selective detachment of the first interface while maintaining the second, providing both reliability during aspiration and adaptability for subsequent infusion.
Solution Approach 2:
The system transitions from a static secure connection to a dynamic multi-stage connection system. The drug vial adapter maintains a secure snap fit connection during the aspiration phase, then can be selectively detached for the infusion phase, providing adaptability while maintaining reliability when needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design ensures that the drug vial adapter is not prematurely detached, allowing for initial aspiration and subsequent infusion, thereby facilitating correct administration protocols and preventing accidental detachment during the process.
Implementation Method 1
a snap fit flex member pair for telescopic snap fit mounting on a drug vial and an upright finger grip extension pair oppositely extending to their snap fit flex member pair for manually urging inwards towards one another for outwardly flexing their snap fit flex member pair for releasing the quick release drug vial adapter from a drug vial
Data Source
AI summary
Dual vial adapter assemblages similar to U.S. Pat. No. 6,558,365 to Zinger et al. and U.S. Pat. No. 8,752,598 to Denenburg et al. and including a quick release drug vial adapter with an upright finger grip extension pair oppositely for manually urging inwards towards one another for releasing same from a drug vial. The quick release drug vial adapter ensures correct usage of a dual vial adapter assemblage by preventing immediate removal of a drug vial adapter from a drug vial after forming a liquid drug therein thereby assisting a healthcare provider to follow an administration protocol requiring an initial aspiration of some liquid drug for immediate administration purposes to a patient prior to subsequent infusion of the liquid drug remainder.