Design and development of a 3D printed water driven spinal posture corrector

Ijaz, Malik Kishwat; Shomenov, Kemel; Otegen, Darkhan; Shehab, Essam; Ali, Hazrat

doi:10.1007/s00170-022-10611-7

Cited by 3 publications

(1 citation statement)

References 23 publications

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“…The high-quality printouts showed no shrinkage, discontinuities, or defects, proving that AC-PETG30 is a reliable material for 3D printing customized complex geometries. ,, Accordingly, a porous cylindrical filter mesh was printed with AC-PETG30 (Figure A). The porous nature of AC-PETG30 provides the potential to adsorb organic and inorganic pollutants with high capacity, making it an effective solution for air and water purification and sterilization. , Additionally, L1 and L2 vertebrae obtained from CT scans (Figure B) demonstrated the potential of using AC-PETG30 as implants for spinal implant surgery in medical applications due to its enhanced mechanical strength and higher biocompatibility compared to pure PETG. − …”

Section: Resultsmentioning

confidence: 99%

From Waste to Filament: Development of Biomass-Derived Activated Carbon-Reinforced PETG Composites for Sustainable 3D Printing

Balou

Ahmed

Priye

2023

ACS Sustainable Chem. Eng.

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Fused deposition modeling (FDM) 3D printing not only offers numerous advantages over traditional manufacturing methods but also produces a significant amount of waste in the form of failed prints, support structures, and unused filaments. Thus, there is a need to develop novel and sustainable materials to replace conventional FDM filaments. We report a unique biomass (waste leaves)-derived activated carbon that can be infused with polyethylene terephthalate glycol (PETG) to fabricate a sustainable, cost-effective, and eco-friendly class of 3D printing filaments that enable 3D printing of parts with superior mechanical properties. We investigate the key parameters that influence the chemical, morphological, thermal, surface, and mechanical properties of our biomass-derived hydrochar, activated carbon, and PETG composite filaments. The resulting samples are characterized using Fourier transform infrared spectroscope, X-ray diffraction, scanning electron microscope, contact angle meter, and a universal testing machine. We have observed that while hydrochar can be incorporated with PETG to create biomass-derived filaments, incorporating activated carbon with PETG results in superior filaments. These composites can incorporate an extremely high biomass filler weight percentage while enhancing mechanical strength by over 30%. Our biomass-derived PETG composites were also thermally stable and more hydrophilic than the pure PETG samples. We analyze the mechanism by which activated carbon incorporation increases the PETG composites’ mechanical strength with both physical and chemical techniques. We also demonstrate successful FDM 3D printing of personalized anatomical models and porous cylindrical filter mesh using our biomass-derived PETG composite filaments. Implementing such sustainable principles in the 3D printing industry has the potential to transform it into a restorative and sustainable system while simultaneously minimizing environmental pollution and waste.

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Section: Resultsmentioning

confidence: 99%

From Waste to Filament: Development of Biomass-Derived Activated Carbon-Reinforced PETG Composites for Sustainable 3D Printing

Balou

Ahmed

Priye

2023

ACS Sustainable Chem. Eng.

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3D printed personalized assistive devices: A material, technique, and medical condition perspective

Vennam,

KN,

Pati

2024

Applied Materials Today

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Application of three-dimensional printing technology to the customized design of spinal implants

Yang,

Zhang,

Liu

et al. 2024

Applied Mathematics and Nonlinear Sciences

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In recent years, the field of 3D printing technology has experienced rapid advancements, notably expanding its application within the medical sector. This study focuses on the custom design of 3D-printed spinal implants, specifically examining porous interbody fusion products. It integrates considerations of mechanical strength and bone ingrowth to establish a finite element model of porous interbody fusion, subsequently conducting topology optimization to design three distinct types of spinal interbody fusion implants. Analytical investigations were carried out on the stress and displacement responses of these three implant types under compressive loading. Furthermore, a detailed stress analysis was conducted on implants varying in porosity, length, and screw angle of the bone graft to assess the performance characteristics of the porous interbody fusion devices. Results indicated that the Type C implant exhibited superior performance, demonstrating a stress reduction to 89.21 MPa and a displacement change of 0.006 mm, optimally at a 60% porosity level. Adjustments in the lengths and screw clamp angles of the splint ensured that the maximal stress experienced by each vertebra remained below the yield limits of both cortical and cancellous bone, thus preventing vertebral damage. This paper presents a comparative analysis of three types of porous interbody fusion devices, providing substantial data support and a theoretical framework that can inform the future development of fusion products.

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Design and development of a 3D printed water driven spinal posture corrector

Cited by 3 publications

References 23 publications

From Waste to Filament: Development of Biomass-Derived Activated Carbon-Reinforced PETG Composites for Sustainable 3D Printing

From Waste to Filament: Development of Biomass-Derived Activated Carbon-Reinforced PETG Composites for Sustainable 3D Printing

3D printed personalized assistive devices: A material, technique, and medical condition perspective

Application of three-dimensional printing technology to the customized design of spinal implants

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