Automated Vial Septum Preparation for Sterile Drug Compounding
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Solution Overview
Problem
Existing vial preparation processes for drug compounding are not automated, leading to potential contamination and non-compliance with sterility standards, and lack effective monitoring and control to extend the beyond-use-date of vials.
Innovation Solution
An automated vial storage and preparation module with vial transferring means, vial cap removal tools, swab manipulators, and control circuitry for cleaning and imaging, ensuring sterile preparation and adherence to quality standards, while extending the beyond-use-date of vials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual vial preparation is performed, then device complexity is reduced, but sterility and contamination risk deteriorate
Solution Approach 1:
The automated vial preparation system performs cap removal, swabbing, and adaptor attachment operations autonomously without human intervention. The manipulator automatically executes each preparation step, eliminating the need for manual handling while maintaining sterility through controlled, programmed actions within the cleanroom environment.
Solution Approach 2:
The patent replaces manual mechanical operations with an automated manipulator system. The manipulator uses mechanical arms equipped with specialized tools (cap removal tool, swab holder, adaptor attachment tool) to perform preparation steps, substituting human hands and actions with programmable mechanical systems that ensure consistent sterile technique.
2Reliability
If automated vial preparation is implemented, then sterility and compliance are improved, but device complexity increases
Solution Approach 1:
The automated preparation system is divided into distinct functional modules: a manipulator with interchangeable tools, a vial holder, a cap removal mechanism, a swabbing mechanism, and an adaptor attachment mechanism. Each module performs a specific function, allowing the complex task of vial preparation to be broken down into manageable, independently controlled segments that can be executed in sequence.
Solution Approach 2:
The manipulator serves as a universal platform that can perform multiple preparation operations by equipping it with different tools. The same manipulator arm and control system handle cap removal, swabbing, and adaptor attachment, reducing overall system complexity compared to having separate dedicated machines for each function.
3Manufacturing precision
If automated manipulation with multiple tools is used, then preparation quality and sterility are improved, but ease of operation deteriorates
Solution Approach 1:
The system incorporates imaging capabilities that capture images of the vial at various preparation stages. The control system processes these images to verify correct vial identification, confirm cap removal, monitor swab application, and ensure proper adaptor attachment. This visual feedback loop ensures high preparation quality by detecting and preventing errors automatically.
4Loss of time
If imaging and monitoring are implemented, then beyond-use-date extension and quality control are improved, but device complexity increases
Solution Approach 1:
The imaging system provides real-time visual feedback during preparation, allowing the control system to verify each step's completion and quality. This monitoring capability ensures that preparation meets sterility standards, which is critical for extending the beyond-use-date of compounded preparations by guaranteeing their stability and safety over longer periods.
Data Source
AI summary
An automated vial preparation module is provided that may include a vial mount for receiving a vial, a manipulator for disinfecting at least a portion of the vial, and control circuitry. The module may apply a disinfecting solution to a vial septum and wipe the septum with a swab. The module may include transferring means for moving vials. An imaging apparatus may monitor the vial preparation process. The module may interface with an automated pharmaceutical compounding system. Methods for automated vial preparation may include steps such as transferring a vial to a mount, removing a vial cap, disinfecting at least the vial septum, and mounting an adaptor onto the vial septum.