About this Abstract |
| Meeting |
2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Symposium
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2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
|
| Presentation Title |
Characterization and Design of Digital Composites via Multi-Material Inkjet 3D Printing for Soft Tissue Replication |
| Author(s) |
Joseph Passarello, Charles Wade, Robert MacCurdy |
| On-Site Speaker (Planned) |
Joseph Passarello |
| Abstract Scope |
Multi-material inkjet 3D printing offers site-specific control over composition, enabling fabrication of high-fidelity tissue simulants with tunable mechanical behavior. This study presents a method for mapping clinically relevant tool-tissue interactions of soft biological tissues via 3D printed multi-material composites. Composites made from elastomeric, gel-like, and liquid base resins were fabricated and characterized through spherical indentation and needle insertion testing to quantify indentation-derived Young's moduli and needle insertion behavior. The printable material space was shown to overlap with the mechanical properties of fat, muscle, internal organs, and vascular tissues. We established predictive mappings between digital composite formulation and mechanical properties, enabling inverse composite design for indentation-driven Young's modulus and needle insertion slopes. Validation experiments confirmed that printed composites reproduced target tissue mechanical responses. By combining indentation and tool-tissue interaction metrics, this method enables scalable fabrication of mechanically realistic soft tissue simulants for medical training and procedural simulation. |
| Proceedings Inclusion? |
Undecided |