Blow-Fill Sealing Temperature Control for Biopharmaceutical Stability
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Solution Overview
Problem
Conventional methods for forming and filling ampoules with biopharmaceutical products often result in temperature-related degradation, leading to loss of potency and reduced shelf-life due to inadequate temperature control during the blow-fill sealing process.
Innovation Solution
Implementing a system with precise temperature control mechanisms, including heat transfer mechanisms between the parison, mold, and biopharmaceutical product, as well as cooling subunits like mandrel and mold cooling systems, and air knives to maintain the product within a predetermined temperature threshold, and developing predictive models to adjust parameters and reduce temperature exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional blow-fill sealing methods are used to form and fill ampoules, then manufacturing efficiency and throughput are maintained, but temperature-related degradation occurs leading to loss of potency and reduced shelf-life
Solution Approach 1:
The system performs preliminary cooling of the mandrel and mold before introducing the biopharmaceutical product. Cooling channels are pre-configured in the mandrel and mold structures, allowing coolant to be circulated in advance to establish optimal temperature conditions before the product is exposed to thermal environments during blow-fill sealing.
Solution Approach 2:
Coolant acts as an intermediary substance that absorbs excess heat from the mandrel and mold during the blow-fill sealing process. The coolant circulates through embedded channels, transferring thermal energy away from the product contact surfaces, thereby maintaining product temperature within safe thresholds without directly contacting the product.
2Reliability
If multiple heat transfer mechanisms are applied to control product temperature, then product degradation is reduced, but device complexity increases
Solution Approach 1:
The system combines multiple heat transfer mechanisms into a single integrated temperature control system. The mandrel cooling system, mold cooling system, and air knives work together as a coordinated thermal management solution, controlled by a centralized system that monitors and adjusts all cooling elements simultaneously, reducing operational complexity despite the multi-faceted approach.
Solution Approach 2:
The temperature control system is designed with universal cooling capabilities that can be applied at multiple stages of the blow-fill sealing process. The same cooling infrastructure (coolant circulation system) serves both the mandrel and mold, while air knives provide additional cooling functionality. This multi-functional design allows a single system to address temperature control needs across different process phases.
3Reliability
If cooling subunits are added to control temperature, then product potency is maintained, but manufacturing throughput may be affected
Solution Approach 1:
The cooling system operates continuously throughout the blow-fill sealing process rather than being activated only when temperature thresholds are exceeded. The mandrel and mold cooling channels maintain constant coolant circulation, and air knives continuously cool the ampoule exterior, ensuring uninterrupted thermal management that prevents temperature excursions without requiring process interruptions.
Solution Approach 2:
The system establishes optimal temperature conditions before the product is introduced and maintains them throughout processing. By pre-cooling the mandrel and mold and maintaining continuous cooling during operation, the system prevents thermal degradation proactively rather than reacting to temperature excursions, thereby maintaining both product potency and process continuity.
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 effectively controls the temperature of biopharmaceutical products during blow-fill sealing, reducing the risk of degradation and maintaining product potency by ensuring temperatures do not exceed sensitive thresholds, thereby extending shelf-life and improving manufacturing efficiency without compromising ampoule quality or throughput.
Implementation Method 1
heat transfer between the molded parison and the biopharmaceutical product during and/or after introduction of the biopharmaceutical product
Implementation Method 2
air knives to maintain the product within a predetermined temperature threshold
Implementation Method 3
applying at least one heat transfer mechanism to control the temperature for the biopharmaceutical product
Data Source
AI summary
A method of controlling a temperature of a biopharmaceutical product during blow-fill sealing, includes developing a model based on heat transfer mechanisms that incorporates the effects of the blow-fill sealing on the biopharmaceutical product, providing a parison to a blow-fill sealing machine for accepting the biopharmaceutical product during the blow-fill sealing, predicting a temperature of at least one the biopharmaceutical product, the parison, and a component of the blow-fill sealing machine at a stage in the blow-fill sealing, and adjusting a parameter of the blow-fill sealing machine to reduce damage to the biopharmaceutical product.