The National Science Foundation awarded a $500,000 grant for a project to develop prosthetic solutions for children with lower-limb amputations. Quentin Sanders, PhD, an assistant professor at George Mason University’s College of Engineering and Computing, is leading the project exploring fused filament fabrication, a 3D printing technology, to create customized, continuous fiber prostheses.
Fused filament fabrication allows for a more flexible and dynamic design, enabling the integration of continuous fibers that provide enhanced strength and durability, and that are affordable and can be tailored to meet the specific physical activity needs of active children.
The first objective of the research focuses on understanding the qualitative and quantitative factors that influence a child’s motivation to participate in physical play. This involves a nuanced analysis of the emotional and psychological aspects of their experiences, ensuring that the developed prostheses align with their aspirations and lifestyle.
To achieve this, Sanders and his team are employing advanced methodologies to gauge how children perceive physical activity alongside their needs for mobility and engagement. This inquiry is not only instrumental in shaping the design of prosthetic devices but also crucial in fostering an environment where children feel empowered to participate in various physical activities without limitations.
In parallel with this objective, the research seeks to quantify the impact of child anthropometry, the measurement of physical dimensions, on the mechanical properties of prostheses designed for running and other vigorous activities. Understanding the biomechanical requirements necessitates thorough research into the specific movements and force interactions that children experience during physical activities. The team hopes to establish benchmarks that can guide the design of prostheses to mimic the natural biomechanics of running.
The project will also make critical comparisons between the performance of continuous fiber 3D-printed prostheses and those manufactured using conventional laminate techniques. This comparative analysis will evaluate both static and dynamic behaviors under various load conditions, thereby generating insightful data about the resilience and functionality of the prosthetic limbs.
The funding began in September is set to conclude in August 2028. The university believes the research holds the potential for broader ramifications within bioengineering. The methodologies and outcomes derived from the study could serve as a model for future innovation in prosthetic design, influencing techniques used for adult and pediatric populations. Additionally, as researchers strive to translate these findings into commercial products, there may be a significant reduction in costs, thereby improving access for families who face financial constraints in sourcing quality prosthetic devices for their children.
Editor’s note: This story was adapted from materials provided by George Mason University.
