期刊
ACTA OTO-LARYNGOLOGICA
卷 133, 期 4, 页码 412-417出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/00016489.2012.761725
关键词
Airway; additive manufacturing; rapid prototyping; artificial; cell culture; surgery; reconstruction
资金
- Tekes FiDiPro Programme [40041/10]
- Helsinki University Central Hospital Research Funds
- Mehilaisen Tutkimussaatio
Conclusions: This study demonstrates proof of concept for controlled manufacturing methods that utilize novel tailored biopolymers (3D photocuring technology) or conventional bioresorbable polymers (fused deposition modeling, FDM) for macroscopic and microscopic geometry control. The manufactured scaffolds could be suitable for tissue engineering research. Objectives: To design novel trachea scaffold prototypes for tissue engineering purposes, and to fabricate them by additive manufacturing. Methods: A commercial 3D model and CT scans of a middle-aged man were obtained for geometrical observations and measurements of human trachea. Model trachea scaffolds with variable wall thickness, interconnected pores, and various degrees of porosity were designed. Photocurable polycaprolactone (PCL) polymer was used with 3D photocuring technology. Thermoplastic polylactide (PLA) and PCL were used with FDM. Cell cultivations were performed for biocompatibility studies. Results: Scaffolds of various sizes and porosities were successfully produced. Both thermoplastic PLA and PCL and photocurable PCL could be used effectively with additive manufacturing technologies to print high-quality tubular porous biodegradable structures. Optical microscopic and SEM images showed the viability of cells. The cells were growing in multiple layers, and biocompatibility of the structures was shown.
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