Seeing the Big Picture: Improving The Prosthetic Design Cycle Using 360° 3D Digital Image Correlation

Cabrera, Isaac A.; Martin, Joseph B.; Fong, Samantha T.; Nguyen, Kha H. M.; Bourgin, Victor D.; Zhao, Win-Ying; Lawson, KiAsia J.; Wong, Kaela A.; Bagheri, Pegah; Hill, Parker; Henning, Bryn M.; Castillo, Patricia; Rao, Ramesh R.; Meyers, Marc A.; Lin, Albert Y.; McKittrick, Joanna

doi:10.36227/techrxiv.12705722

2020

DOI: 10.36227/techrxiv.12705722

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Seeing the Big Picture: Improving The Prosthetic Design Cycle Using 360° 3D Digital Image Correlation

Isaac A. Cabrera¹,

Joseph B. Martin²,

Samantha T. Fong³

et al.

Abstract: Additive manufacturing is one of the most promising emerging technologies for building prosthetic sockets. However, there is no reliable way to estimate the factor of safety and the lifetime of 3D printed prosthetic sockets. Here, we explore 360° 3D digital image correlation (DIC) and discover how this new tool can increase our understanding of prosthetic structural failures. We establish that this new technology can dramatically improve the prosthetic design cycle by identifying local strain concentrations an… Show more

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Cited by 3 publications

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Digital healthcare technologies: Modern tools to transform prosthetic care

Cabrera

Pike

McKittrick

et al. 2021

Expert Review of Medical Devices

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Digital healthcare technologies are transforming the face of prosthetic care. Millions of amputees around the world do not currently have access to any form of prosthetic healthcare. However, digital technologies provide a promising solution. Digital healthcare technologies have the potential to augment the range and efficiency of prosthetists so they can reach more patients. These technologies will enable affordable prostheses to be built on a scale larger than currently possible with today's clinical practices. In this paper, we explore the social aspects of amputation as a global issue, describe current practices for designing and manufacturing prosthetic sockets, and examine shifting trends towards virtual care models. Importantly, we assess the technologies used in these virtual health workflows to understand their critical needs. Large technological gaps need to be overcome in order to enable the mass production and distribution of prostheses digitally. However, recent advances in computational methods and CAD/CAM technologies are bridging this gap faster than ever before. We foresee that these technologies will return mobility and economic opportunity to amputees on a global scale in the near future.

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Digital healthcare technologies: Modern tools to transform prosthetic care

Cabrera

Pike

McKittrick

et al. 2021

Expert Review of Medical Devices

Self Cite

View full text Add to dashboard Cite

show abstract

Application of Digital Image Correlation in Structural Health Monitoring of Bridge Infrastructures: A Review

et al. 2021

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A vision-based approach has been employed in Structural Health Monitoring (SHM) of bridge infrastructure. The approach has many advantages: non-contact, non-destructive, long-distance, high precision, immunity from electromagnetic interference, and multiple-target monitoring. This review aims to summarise the vision- and Digital Image Correlation (DIC)-based SHM methods for bridge infrastructure because of their strategic significance and security concerns. Four different bridge types were studied: concrete, suspension, masonry, and steel bridge. DIC applications in SHM have recently garnered attention in aiding to assess the bridges’ structural response mechanisms under loading. Different non-destructive diagnostics methods for SHM in civil infrastructure have been used; however, vision-based techniques like DIC were only developed over the last two decades, intending to facilitate damage detection in bridge systems with prompt and accurate data for efficient and sustainable operation of the bridge structure throughout its service life. Research works reviewed in this article demonstrated the DIC capability to detect damage such as cracks, spalling, and structural parameters such as deformation, strains, vibration, deflection, and rotation. In addition, the reviewed works indicated that the DIC as an efficient and reliable technique could provide sustainable monitoring solutions for different bridge infrastructures.

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Prosthetic Sockets: Tensile Behavior of Vacuum Infiltrated Fused Deposition Modeling Sandwich Structure Composites

et al. 2022

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The development of novel materials will enable a new generation of prosthetic devices to be built with additive manufacturing (AM). Vacuum infiltrated sandwich structure composites are a promising approach for building prosthetic sockets via AM. In this paper, we test the tensile properties of 18 different composite material configurations using ASTM D638. These composites were manufactured using a custom vacuum infiltration method and had varying filament materials, infiltrated matrix materials, and print directions. Several material-matrix-print composites showed higher ultimate tensile strengths and reduced anisotropy compared to full-infill control samples. However, the mechanical properties of these composites were limited by a large degree of porosity due to the manufacturing method. Still, the results were sufficiently promising to create a proof of concept prosthetic socket via the vacuum infiltration method. Future research should focus on reducing porosity defects and investigating additional material-matrix-print combinations.

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Seeing the Big Picture: Improving The Prosthetic Design Cycle Using 360° 3D Digital Image Correlation

Cited by 3 publications

References 7 publications

Digital healthcare technologies: Modern tools to transform prosthetic care

Digital healthcare technologies: Modern tools to transform prosthetic care

Application of Digital Image Correlation in Structural Health Monitoring of Bridge Infrastructures: A Review

Prosthetic Sockets: Tensile Behavior of Vacuum Infiltrated Fused Deposition Modeling Sandwich Structure Composites

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