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Updated: Aug 1, 2025
10:22
High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
Published on: September 2, 2009
13.9K
Hydrodynamic considerations for spring-driven autoinjector design
Xiaoxu Zhong1, Jean-Christophe Veilleux2, Galen Huaiqiu Shi2
1School of Mechanical Engineering, Purdue University, West Lafayette, IN 47906, United States.
International Journal of Pharmaceutics
|April 28, 2023
Summary
This study enhances spring-driven autoinjector design by analyzing hydrodynamic factors like sloshing and cavitation. Integrated simulation tools predict performance, optimizing delivery of therapeutic proteins for better patient outcomes.
Area of Science:
- Biomedical Engineering
- Fluid Dynamics
- Pharmaceutical Science
Background:
- Spring-driven autoinjectors are crucial for therapeutic protein delivery.
- Understanding device-tissue and device-protein interactions is key.
- Validated simulation tools improve autoinjector performance prediction.
Purpose of the Study:
- To address critical hydrodynamic considerations in spring-driven autoinjector design.
- To investigate the impact of sloshing and cavitation on device performance.
- To present a framework for performance prediction and design optimization.
Main Methods:
- Analysis of hydrodynamic factors including sloshing and cavitation.
- Integration of validated simulation tools for performance prediction.
- Experimental validation of simulation models.
Main Results:
- Identified key hydrodynamic parameters affecting autoinjector performance.
- Demonstrated the utility of integrated simulation for design optimization.
- Quantified the influence of sloshing and cavitation on drug delivery.
Conclusions:
- Hydrodynamic factors significantly impact spring-driven autoinjector design and performance.
- Simulation-based frameworks enable optimized autoinjector development.
- Improved autoinjector design enhances therapeutic protein delivery efficacy and safety.
Keywords:
Design optimizationProtein aggregationSloshing and cavitationSpring-driven autoinjectorTherapeutic proteinsMore Related Videos
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