Pharmaceutical Compounder Assembly With Septa-Sealed Mixing
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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, mixes them with a diluent in a controlled mixing chamber, and fills a destination reservoir, incorporating containment assemblies with elastomeric septa and variable-volume housing to ensure precise and safe compounding of pharmaceuticals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual mixing of ingredients is performed, then flexibility and simplicity are maintained, but precision, efficiency, and safety deteriorate
Solution Approach 1:
The mixing system is segmented into distinct functional modules: a manifold system with multiple reservoir ports, individual reservoirs for each ingredient, a controlled mixing chamber, and a destination reservoir. This segmentation allows each component to perform its specific function with high precision while maintaining overall system manageability.
Solution Approach 2:
The patent introduces an automated mixing apparatus as an intermediary between the ingredients and the final mixture. This intermediary device performs the mixing function with precise control over ingredient delivery and mixing parameters, eliminating the imprecision of manual mixing while containing the complexity within a dedicated system.
2Reliability
If automated mixing apparatus is used, then precision and safety improve, but device complexity increases
Solution Approach 1:
The hazardous mixing process is extracted from the manual operation domain and placed into a contained automated system. The mixing chamber provides physical containment of ingredients during mixing, and the automated delivery system eliminates direct human contact with potentially hazardous substances, improving safety while concentrating complexity within the automated apparatus.
Solution Approach 2:
The mixing apparatus is designed as a multi-functional system that can handle multiple ingredients from different reservoirs, perform precise metering and delivery, provide containment during mixing, and transfer the final product to a destination reservoir. This universality improves safety across different mixing scenarios while consolidating complexity into a single versatile platform.
3Productivity
If manual mixing is performed, then device complexity remains low, but productivity and efficiency deteriorate
Solution Approach 1:
The automated mixing apparatus enables continuous operation through the manifold system that can sequentially or simultaneously access multiple reservoirs, continuously deliver ingredients to the mixing chamber, and transfer finished mixtures to destination reservoirs without interruption. This continuity dramatically improves productivity compared to manual mixing, with the complexity managed through automated control systems.
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.