Medication Vial Containment Assembly for Precise Sterile Compounding
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Solution Overview
Problem
Manual mixing of multi-ingredient mixtures is inefficient, imprecise, and potentially hazardous, especially when dealing with pharmaceuticals, as it lacks precision and can be time-consuming, and poses risks with unsafe or hazardous ingredients.
Innovation Solution
A compounder apparatus with a manifold system that docks multiple reservoirs, extracts fluids, and mixes them with a diluent in a controlled mixing chamber, ensuring precise concentration and safety through automated processes, including containment assemblies with elastomeric septa and variable-volume housing for medication vials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual mixing of ingredients is performed, then the process is simple and requires minimal equipment, but the mixing precision and efficiency deteriorate
Solution Approach 1:
The patent replaces manual mechanical mixing with an automated mixing apparatus that uses a motor-driven impeller system. The mixing chamber contains a central impeller that rotates to mix ingredients, eliminating the need for manual stirring while providing precise control over mixing parameters such as speed, time, and sequence.
Solution Approach 2:
The mixing apparatus is designed to automatically measure, dispense, and mix ingredients without continuous human intervention. The system self-regulates the mixing process through programmed sequences, automatic ingredient delivery, and integrated control systems that monitor and adjust parameters throughout the mixing cycle.
2Device complexity
If manual mixing is used, then equipment complexity is reduced, but time consumption and error potential increase
Solution Approach 1:
The mixing apparatus enables continuous operation through automated ingredient delivery systems that can dispense multiple ingredients in sequence without stopping the mixing process. The system maintains continuous agitation and can handle multiple batches sequentially, eliminating the downtime and setup time associated with manual mixing between batches.
3Device complexity
If manual handling of hazardous ingredients is performed, then no special containment equipment is needed, but safety and operator protection deteriorate
Solution Approach 1:
The mixing chamber is designed as a sealed containment environment that can be pressurized with inert gas or maintained under negative pressure to prevent escape of hazardous ingredients. The system includes interlocked access doors and automated sampling ports that maintain containment integrity throughout the mixing process, protecting operators from exposure to hazardous substances.
Data Source
AI summary
A system including a containment assembly for enclosing a medication container may comprise a first housing portion or interface portion having a proximal end and a distal end. The interface portion may include a housing wall which defines a channel spanning from the proximal end to the distal end. The channel may be open at the proximal and distal end. The containment assembly may further comprise only two pierceable septa configured to form a barrier to the channel. The containment assembly may further comprise a variable-volume housing portion having a variable volume chamber. The variable-volume portion chamber of the variable-volume housing portion may be in fluid communication with the distal end of the channel.