3D printed bio-models for medical applications. Issue 2 (20th March 2017)

• Record Type: Journal Article
• Authors: Yap, Yee Ling; Tan, Yong Sheng Edgar; Tan, Heang Kuan Joel; Peh, Zhen Kai; Low, Xue Yi; Yeong, Wai Yee; Tan, Colin Siang Hui; Laude, Augustinus
• Is Part Of: Rapid prototyping journal. Volume 23:Issue 2(2017)
• Page Start: 227
• Page End: 235
• Publication Date: 2017-03-20
• Subjects: Rapid prototyping -- 3D printing -- Additive manufacturing -- Bio-model -- Data acquisition -- Data conversion; Engineering design -- Periodicals; 620.004205
• DOI: 10.1108/RPJ-08-2015-0102
• Languages: English
• ISSNs: 1355-2546

Abstract

Abstract : Purpose: The design process of a bio-model involves multiple factors including data acquisition technique, material requirement, resolution of the printing technique, cost-effectiveness of the printing process and end-use requirements. This paper aims to compare and highlight the effects of these design factors on the printing outcome of bio-models. Design/methodology/approach: Different data sources including engineering drawing, computed tomography (CT), and optical coherence tomography (OCT) were converted to a printable data format. Three different bio-models, namely, an ophthalmic model, a retina model and a distal tibia model, were printed using two different techniques, namely, PolyJet and fused deposition modelling. The process flow and 3D printed models were analysed. Findings: The data acquisition and 3D printing process affect the overall printing resolution. The design process flows using different data sources were established and the bio-models were printed successfully. Research limitations/implications: Data acquisition techniques contained inherent noise data and resulted in inaccuracies during data conversion. Originality/value: This work showed that the data acquisition and conversion technique had a significant effect on the quality of the bio-model blueprint and subsequently the printing outcome. In addition, important design factors of bio-models were highlighted such as material requirement and the cost-effectiveness of the printing technique. This paper provides a systematic discussion for future development of an engineering design process in three-dimensional (3D) printed bio-models.