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Mathematical surface function-based design and 3D printing of airway stents
Bengi Yilmaz1,2, Bilge Yilmaz Kara3
1Department of Biomaterials, University of Health Sciences Turkey, 34668, Istanbul, Turkey. bengi.yilmaz@sbu.edu.tr.
3D Printing in Medicine
|August 6, 2022
Summary
This study introduces novel, highly porous airway stents designed using mathematical functions and fabricated with 3D printing. This approach allows for adjustable mechanical strength, offering a promising tool for treating central airway pathologies.
Area of Science:
- Biomedical Engineering
- Materials Science
- Additive Manufacturing
Background:
- Three-dimensional (3D) printing enables patient-specific designs for clinical applications.
- Complex airway stent models are crucial for treating central airway pathologies.
Purpose of the Study:
- To introduce novel complex airway stent models designed using mathematical functions.
- To fabricate these models using 3D printing for clinical implementation.
Main Methods:
- Five distinct airway stent designs were created using mathematical modeling software (MathMod).
- Stereolithography-based 3D printing technology was employed to fabricate highly porous structures.
- Scanning electron microscopy (SEM) analyzed microstructural details, and compression tests evaluated mechanical properties.
Main Results:
- 3D printable files were successfully generated from mathematical models, yielding airway stents with over 85% porosity.
- SEM imaging confirmed the high-resolution, layered topography of the 3D printed stents.
- Compression tests demonstrated that mechanical strength can be tuned via mathematical design without altering materials or manufacturing processes.
Conclusions:
- A novel approach combining mathematical function-based design and 3D printing is proposed for airway stent fabrication.
- This method represents a promising tool for future treatments of central airway diseases.
