Pharmaceutical Fluid Filling With Aseptic Droplet Volume Imaging

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Solution Overview

Problem

Existing pharmaceutical filling technologies are bulky and expensive, making them unsuitable for small-scale production and development environments, and require complex aseptic handling procedures that are not efficiently addressed by current automated systems.

Innovation Solution

A compact filling system with a sterilizable chamber and a planar rotary stage that maintains aseptic conditions, using a fiducial locating structure to constrain and rotate pharmaceutical containers and closures, along with a cover removal station and vacuum pickup system to automate the filling process without vibratory bowls or escapements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If prior art filling systems are used, then aseptic filling can be achieved, but the equipment becomes bulky and expensive

Engineering Contradiction:

Improveaseptic filling capabilityVSAvoidequipment footprint

Core Design Contradiction:

ReliabilityVSVolume of stationary object

Solution Approach 1:

The filling system is divided into separate functional modules: a rotary stage for container positioning, a filling station for aseptic filling, and a closure station for sealing. This segmentation allows each component to be optimized independently and reduces the overall equipment footprint while maintaining aseptic capabilities.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent employs nested container structures where inner containers are placed within outer containers, and the filling system is designed to handle these nested configurations. This nesting approach reduces the space required for container storage and handling, thereby reducing equipment footprint.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If prior art filling systems are used, then aseptic filling can be achieved, but the equipment becomes expensive

Engineering Contradiction:

Improveaseptic filling capabilityVSAvoidequipment cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The rotary stage serves multiple functions: positioning containers, rotating containers to access different stations, and coordinating with both filling and closure operations. This multi-functionality reduces the need for separate specialized equipment, lowering overall system cost while maintaining aseptic filling capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses self-contained aseptic mechanisms where the sterile barrier and filling process are integrated, eliminating the need for complex external sterilization equipment. The container nests and sterile barriers work together to maintain aseptic conditions without requiring additional expensive sterilization infrastructure.

Inventive Principle:

Principle #25Self-service

3Productivity

If automated filling systems are implemented, then filling efficiency improves, but operational complexity increases

Engineering Contradiction:

Improvefilling efficiencyVSAvoidoperational complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The rotary stage operates in periodic cycles, rotating to predetermined positions to access the filling station, then the closure station, and returning to the starting position. This periodic motion simplifies control logic and operational sequencing while maintaining high filling efficiency through continuous cyclic operation.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent replaces complex mechanical conveyance systems with a simplified rotary stage mechanism that uses rotational motion to transport containers between stations. This substitution reduces the number of mechanical components and simplifies operational control while maintaining productivity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 system enables efficient, automated, and aseptic filling of pharmaceutical containers on a smaller scale, reducing equipment footprint and operational complexity while maintaining aseptic integrity.

Implementation Method 1

a vacuum pickup system to automate the filling process

Methodology Applied

Scientific EffectVacuum: Vacuum

Data Source

PatentEP4616838A1Method for monitoring and controlling the filling of a container with a pharmaceutical fluid in an aseptic environment

Publication Date: 2025.09.17 VANRX PHARMASYST

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Figure 1B
Figure 1C~1D

AI summary

The present invention involves a system and method for monitoring and controlling the aseptic dispensing of a pharmaceutical fluid into containers (510). The system (1000) employs a pharmaceutical fluid dispensing head (174, 174') to dispense droplets (700) of the pharmaceutical fluid along a droplet path (710) into the container and a droplet monitoring system (250, 250') to monitor the droplets produced and dispensed. The volume of at least one droplet is determined based on images of the droplet falling along the droplet path. The volume of pharmaceutical fluid dispensed is determined from the volume of the droplets. The pharmaceutical fluid dispensing head and the droplet monitoring system may be mutually integrated and may be used in systems using different mechanisms for moving containers, including rotary stage systems (130) and robotic arms (170', 170", 800).