Compounding Valve Structure With Gravity Wall for Backflow Prevention
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Solution Overview
Problem
Compounding devices face inefficiencies in setup time, downtime during ingredient replacement, and accuracy at small volumes, with challenges in maintaining aseptic conditions and preventing errors in fluid transfer and path connections.
Innovation Solution
A compounding device with a valve structure that allows fluid to flow upward against gravity, featuring a rotational axis with specific fluid paths and a gravity wall to prevent backflow, combined with a user-friendly interface and improved cleaning features to enhance accuracy and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional valve structure is used, then the device is simpler to manufacture, but fluid cannot flow upward against gravity and backflow cannot be prevented
Solution Approach 1:
The patent introduces a vertical dimension to fluid flow by incorporating a gravity wall that forces fluid to flow upward against gravity. The valve structure includes a downward fluid path that transitions to an upward fluid path, creating a dimensional change in flow direction that prevents backflow while maintaining valve functionality.
Solution Approach 2:
The gravity wall acts as an intermediary element between the downward and upward fluid paths. It serves as a physical barrier that fluid must overcome to flow in the desired direction, preventing direct backflow while allowing controlled flow through the valve when properly actuated.
2Reliability
If more complex cleaning features are added, then aseptic conditions are better maintained, but device complexity increases
Solution Approach 1:
The valve structure is segmented into distinct functional zones including a downward fluid path, an upward fluid path, and a gravity wall. This segmentation allows each component to be optimized for its specific function while facilitating easier cleaning and disinfection of individual segments to maintain aseptic conditions.
3Productivity
If the device operates at higher speed, then productivity increases, but accuracy at small volumes deteriorates
Solution Approach 1:
The valve system incorporates dynamic control capabilities that allow adjustment of flow characteristics based on operating conditions. The valve can modulate flow rates to maintain precision at small volumes while enabling higher speed operation when appropriate, optimizing both productivity and measurement precision across different operating scenarios.
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
The device operates more efficiently, reduces downtime, improves accuracy at small volumes, and maintains aseptic conditions by preventing errors and facilitating easier cleaning and disinfection.
Implementation Method 1
fluid travelling through the valve travels along the downward fluid path at an upstream side of the gravity wall, and travels on an upward fluid path on a downstream side of the gravity wall
Data Source
AI summary
An exemplary pharmaceutical compounding system and device for mixing materials from at least two distinct material sources can include a valve including a valve housing and a valve structure located within the valve housing. The valve structure can be configured to permit fluid to flow through the valve when in an open position, and can include a gravity wall wherein, when the valve structure is in the open position, fluid moving through the valve structure moves upward against a force of gravity when travelling through the valve and traversing the gravity wall.