Mass-production technology of guide wire, stent and implant dentistry with human boby-friendly

随着医疗费用的大幅增加，人们要求应用塑料加工技术开发先进、廉价的医疗器械。本研究探讨了用于无过敏种植牙齿的导丝、正畸丝、支架、螺钉等医疗和牙科精密器械的低生产成本量产技术，这些器械必须兼顾生物相容性、缩短术后愈合时间和减轻术后疼痛。利用纯钛、钛合金、形状记忆合金、镁合金等具有生物相容性和功能性的材料制成的丝材，通过拉伸法和轧制法，探索产品的微型化和对人体友好的功能性产品的生产。充分利用拉伸特性制造对人体无害的医疗微部件的廉价生产条件已经明朗。

Medical costs are increasing significantly and the development of advanced and inexpensive medical instruments by applying the technology of plastic processing has been required. In this study, mass-production technology at a low production cost for medical and dental precision instruments such as guide wire and orthodontic wire, a stent, and a screw for allergy-free implant of a teeth, for which considerations to biocompatibility, shortening of postoperative healing time and pain alleviation after surgery must be paid, were explored. Using wires of biocompatible and functional materials such as purity titanium, titanium alloy, shape-memory alloy, and magnesium alloy, downsizing of a product into a micro device and production of a human-body-friendly functional product are explored by applying drawing method and rolling method. Inexpensive production conditions for human body-friendly medical micro parts which are made by the best use of drawing characteristic have become clear.