Comparison of Mechanical Properties of Patient-Specific Direct 3D-Printed Aortic Valve for Simulation Trainings: A Comparative Study
Abstract
Objective: This study aims to evaluate the mechanical properties of 3-dimensional (3D)-printed patient-specific aortic models for surgical simulation. The objective was to analyze the effects of postcuring time and color pigments on material stiffness, flexibility, toughness, and durability and to identify the most suitable material and processing conditions to enhance the biomechanical realism of 3D-printed aortae.
Methods: Direct 3D printing was used to fabricate patient-specific aortic models. Samples were prepared with different postcuring times (5, 10, 15, and 20 min) and with or without color pigments (pink and orange). Uniaxial tensile testing was conducted to analyze the mechanical properties, including tensile strength, stiffness, flexibility, and strain at failure, using stress-strain curves.
Results: Uncolored samples with a postcuring time of 15 min demonstrated the best mechanical properties for simulation training, offering a balance between flexibility, stiffness, and toughness. Colored samples exhibited lower tensile strength, reduced toughness, and increased stiffness as compared with uncolored samples.
Conclusions: Material selection and postprocessing play a crucial role in the biomechanical accuracy of 3D-printed patient-specific aortic models. Uncolored samples with a 15 min postcuring time are optimal for surgical simulation. Future research should focus on refining postprocessing techniques and directly comparing 3D-printed models with human aortic…
Read the paper
Related studies
- A Survey on Knowledge Graphs: Representation, Acquisition, and Applications
- Toxicity of nanomaterials
- The Human Gene Mutation Database: towards a comprehensive repository of inherited mutation data for medical research, genetic diagnosis and next-generation sequencing studies
- Halogen bonding (X‐bonding): A biological perspective
- Biofilm formation at the air–liquid interface by the Pseudomonas fluorescens SBW25 wrinkly spreader requires an acetylated form of cellulose
- Opioid Activation of Toll-Like Receptor 4 Contributes to Drug Reinforcement
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.