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Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Advanced Biomaterials for Biomedical Implants
Presentation Title Hybrid Manufacturing of Superelastic Arterial Stents
Author(s) Peter Ibrahim, Moataz M. Attallah
On-Site Speaker (Planned) Peter Ibrahim
Abstract Scope The use of additive manufacturing (AM), especially Laser Powder Bed Fusion (L-PBF) technology, has been explored to manufacture metallic stents from NiTi and 316L stainless steel. Nonetheless, L-PBF fails to achieve the required tolerances and performance. In this work, a hybrid (additive+subtractive) manufacturing approach was developed to manufacture customised stents from a Ni-free superelastic β-Titanium alloy, first using L-PBF followed by laser micro-machining to improve the component tolerances. L-PBF parameters were optimised to achieve >99% dense tubes with controlled surface roughness. Tubes surface roughness and cell attachment properties were further improved using electropolishing. A complex open stent design was cut out of the tubes using laser micromachining with high accuracy. FE modelling of stent deployment predicted that stent deformation range could be increased from 40 to 75% by optimising the strut thickness,. The developed approach opens opportunities to create customised Ni-free stents for complex stenosis conditions.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Biomaterials, Modeling and Simulation

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Bioactive Glasses for Bone Repair and Dental Applications: A Review of Osteointegration and Controlled Ion Release Capabilities
Biocompatibility Evaluation of TiZrNbSiMo High Entropy Alloy Coatings Fabricated by High Power Impulse Magnetron Sputtering
Bioinspired and Electrospun Helically Structured Nanofibers for Cardiac Patch Application
Bone Reconstruction Patient-specific Implants Based on PEI
Corrosion Behaviour of Ti-xCu Alloys for Dental Applications
Design-specific and Multi-functional (Bioactive and Antibacterial) PEEK-based Implants
Design and Application of Porous PDMS Membrane Devices in Nude Mice for Localized Treatment of Triple Negative Breast Cancer
Design and Enhancing Bbiocompatibility of β- titanium Alloy via Electro-discharge Treatment Process
Development of Antibacterial Metal Oxide Thin Films for Neurostimulation Applications via Atomic Layer Deposition
Development of Antibacterial Neural Interfacing Electrodes via Hierarchical Surface Restructuring and Atomic Layer Deposition
Enhancing Mechanical Properties of a Lightweight Biomimetic Structure by 3D Printing for Bone Tissue Engineering Application
Exploring the Microstructure of Marine Sponge Spicules: Insights for Biomimetic Bone Tissue Engineering
H-1: Bioactive Glass-ceramic Nanoparticle for Medical Implants
Hybrid Manufacturing of Superelastic Arterial Stents
Improving Free Flap Donor Site Stabilization with the Use of Additively Manufactured Custom Fixation Plates
Improvisation of Phase Stability and Texture in Biomedical Ti-based Alloys for Ultra Low Modulus Applications
In Vivo InflammatoryReaction and Elemental Trafficking of Magnesium Bioimplant Derived Aluminum
Manipulating Precipitate Population to Modulate Corrosion and Al Release in Mg-9Al Biodegradable Implants
Mechanical Integrity Testing of Bioresorbable Zn-based Alloy Under Static and Cyclic Loadings
Microstructural and Mechanical Analysis of Aerosol Jet 3D Printed Micropillars and Their Biocompatibility in Mouse Brain
Nano-biosensor to Manage COVID-19 Infection and Long-COVID
New MRI-compatible Metallic Materials for Miniaturized Implants
Novel Ti-10Mo-Mn Alloys for Biomedical Applications
Optimizing Printing Orientation for Spicule-Inspired Structures for Biomedical Applications
Optimizing the Bio-degradability and Biocompatibility of a Biogenic Collagen Membrane Through Cross-linking And Zinc-doped Hydroxyapatite
Orthopedic Patient Specific 3D Printed Implants Based on Novel Composite PEEK Filaments
Reducing Stress Shielding in Hip Implants Using 3D Printed Superelastic Titanium Alloy
Reimagining Implantable Leads: Exploring the Value of Using Aerosol Printing Technology to Replace Wire-based Structures in High-density Connections
Tailored Nanofiber Microspheres with Tunable Morphology for Accelerated Diabetic Wound Healing
The Development of Antimicrobial Ti-Cu Alloys and Understanding of their Mode of Action
Using Artifical Intelligence (AI) to Improve Medical Devices
Young Leaders International Scholar – KIM Lecture: Electrochemically Controlled Drug Delivery Valve that Exploits Crevice Corrosion

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