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Fabrication of low cost soft tissue prostheses with the desktop 3D printer
Yong He1, Guang-huai Xue1, Jian-zhong Fu1
11] The State Key Lab of Fluid Power Transmission and Control Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China [2] Zhejiang Province's Key Laboratory of 3D Printing Process and Equipment, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China.
Abstract:
Soft tissue prostheses such as artificial ear, eye and nose are widely used in the maxillofacial rehabilitation. In this report we demonstrate how to fabricate soft prostheses mold with a low cost desktop 3D printer. The fabrication method used is referred to as Scanning Printing Polishing Casting (SPPC). Firstly the anatomy is scanned with a 3D scanner, then a tissue casting mold is designed on computer and printed with a desktop 3D printer. Subsequently, a chemical polishing method is used to polish the casting mold by removing the staircase effect and acquiring a smooth surface. Finally, the last step is to cast medical grade silicone into the mold. After the silicone is cured, the fine soft prostheses can be removed from the mold. Utilizing the SPPC method, soft prostheses with smooth surface and complicated structure can be fabricated at a low cost. Accordingly, the total cost of fabricating ear prosthesis is about $30, which is much lower than the current soft prostheses fabrication methods.
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