Plastic Mixing Granulator Components for HPAPI Containment
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Solution Overview
Problem
Existing mixing granulators used in pharmaceutical applications, particularly those handling high-potency active pharmaceutical ingredients (HPAPIs), face challenges in preventing cross-contamination and require costly cleaning validation due to the use of multi-purpose systems that process valuable or toxic substances, necessitating stringent OEB 5 compliance.
Innovation Solution
A mixing granulator with components in contact with the product, such as the container, mixing tool, and comminution tool, are partially or fully made from plastic or plastic composite materials, allowing for single-use and eliminating the need for extensive cleaning validation, while maintaining food safety and compliance with OEB 5 limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If stainless steel components are used for container, mixing tool, and comminution tool, then durability and reusability are improved, but production cost increases and cleaning validation is required
Solution Approach 1:
The mixing granulator is divided into reusable stainless steel components (drive mechanism, frame) and disposable plastic components (container, mixing tool, comminution tool). This segmentation allows the expensive stainless steel parts to be reused while the plastic parts are discarded after single use, eliminating cleaning validation requirements for product-contact surfaces.
Solution Approach 2:
The container, mixing tool, and comminution tool are made from plastic materials designed for single-use only. These disposable components are discarded after one processing cycle, eliminating the need for costly cleaning validation and preventing cross-contamination, while the expensive stainless steel structure is reused.
2Strength
If stainless steel components are used for container, mixing tool, and comminution tool, then durability is improved, but cleaning validation complexity increases
Solution Approach 1:
The plastic container, mixing tool, and comminution tool are designed as single-use disposable components. After one processing cycle, they are discarded rather than cleaned, completely eliminating the complex cleaning validation process that would be required for reusable stainless steel components.
Solution Approach 2:
Instead of cleaning and revalidating stainless steel components after each use, the plastic product-contact components are discarded after single use. This approach recovers the time and resources that would be spent on cleaning validation while maintaining product safety through complete replacement.
3Ease of manufacture
If plastic materials are used for product-contact components, then production cost decreases and single-use is enabled, but perceived durability may be reduced
Solution Approach 1:
The system segments components into reusable stainless steel structural elements and disposable plastic product-contact elements. The plastic components are optimized for single-use performance, while the stainless steel parts provide long-term durability and are reused across multiple processing cycles.
Solution Approach 2:
The plastic container, mixing tool, and comminution tool are designed as inexpensive single-use components that are discarded after one processing cycle. This eliminates the need for expensive cleaning validation and prevents cross-contamination, making the overall process more cost-effective despite the reduced reusability of individual plastic parts.
4Adaptability or versatility
If multi-purpose stainless steel systems are used, then adaptability is improved, but cross-contamination risk increases
Solution Approach 1:
The plastic container, mixing tool, and comminution tool are designed as single-use disposable components that are discarded after one processing cycle. This eliminates the risk of cross-contamination between different products while maintaining the multipurpose capability of the stainless steel mixing granulator system.
Solution Approach 2:
Instead of cleaning and reusing stainless steel components that contact different products, the plastic product-contact components are discarded after each use. This complete replacement approach eliminates cross-contamination risk while allowing the same stainless steel equipment to be used for multiple different pharmaceutical products.
Data Source
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AI summary
The invention relates to a mixing granulator (1) with a container (2) for receiving a product, a mixing tool (8) located in the container (2) and mounted on a vertically oriented shaft (7), and a comminution tool (16) located in the container (2), wherein at least one product-contacting component, namely the container (2), the mixing tool (8), and the comminution tool (16), is at least partially made of a plastic or a plastic composite material.