使用桌面3D打印机制造低成本软组织假体。
Fabrication of low cost soft tissue prostheses with the desktop 3D printer.
作者信息
He Yong, Xue Guang-huai, Fu Jian-zhong
机构信息
1] 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.
出版信息
Sci Rep. 2014 Nov 27;4:6973. doi: 10.1038/srep06973.
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.
诸如人工耳、眼和鼻等软组织假体在颌面修复中被广泛应用。在本报告中，我们展示了如何使用低成本的桌面3D打印机制造软组织假体模具。所使用的制造方法被称为扫描打印抛光铸造（SPPC）。首先，用3D扫描仪对解剖结构进行扫描，然后在计算机上设计组织铸造模具并用桌面3D打印机打印。随后，采用化学抛光方法通过消除阶梯效应并获得光滑表面来对铸造模具进行抛光。最后一步是将医用级硅胶浇铸到模具中。硅胶固化后，即可从模具中取出精致的软组织假体。利用SPPC方法，可以低成本制造出表面光滑且结构复杂的软组织假体。因此，制造耳部假体的总成本约为30美元，这比当前的软组织假体制造方法低得多。
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