Expansibility of TangoPlus and its feasibility in cardiovascular model(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2020年第4期
- Page:
- 509-513
- Research Field:
- 生物材料与力学
- Publishing date:
Info
- Title:
- Expansibility of TangoPlus and its feasibility in cardiovascular model
- Author(s):
- LONG Tianyi; PAN Wei; ZHANG Chenglong; PENG Liming; JING Ran
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha 410000, China
- Keywords:
- Keywords: cardiovascular model; TangoPlus; rapid prototyping; modeling
- PACS:
- R318.08
- DOI:
- DOI:10.3969/j.issn.1005-202X.2020.04.020
- Abstract:
- Abstract: Objective To explore the expansibility of TangoPlus FullCure 930w and evaluate its feasibility in cardiovascular model. Methods According to the cardiovascular magnetic resonance image, the anatomical structure of the descending aorta of a subject was modeled by 3D printing and a rapid prototyping was completed using TangoPlus. The model was printed with different wall thickness (0.6, 0.7, 0.8, 1.0 and 1.5 mm), while the vessel lumen remained constant; the model was also printed in vertical and horizontal directions, and finally a total of 10 samples were obtained. Compliance testing was performed by monitoring pressure changes while gradually increasing or decreasing the internal volume. A patient-specific compliance aortic model suitable for the attachment to a simulated circulation circuit in an in vitro assay was produced. The right ventricular outflow tract (RVOT) in patients requiring pulmonary valve replacement was printed for carrying out physical tests on device insertion and assessing the suitability of percutaneous pulmonary valve implantation. Results The expandability of TangoPlus for wall thickness of 0.6 mm and 1.5 mm were (6.5×10-3) mmHg-1 and (3.0×10-3) mmHg-1, respectively. The model printed in the vertical direction was better than that printed in the horizontal direction. Both rapid prototyping for compliance aortic hypoplasia and RVOT anatomic model were proved to be feasible. The device was also successfully inserted into RVOT model. Conclusion TangoPlus is suitable for the manufacture of arterial model and is compatible with PolyJet printing, which can ensure the modeling of representative anatomical structures, with the advantages of rapid manufacture and low cost. The material can be also used for exploring the attractiveness of models printed with non-uniform wall thickness. However, the material appears too hard to simulate a more desirable systemic venous system.
Last Update: 2020-04-29