Surface modification in additive manufacturing

增材制造中的表面改性

• 批准号: 523142-2018
• 负责人: Fang, Qiyin
• 金额: $ 1.82万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=650445
• 关键词: Surface; modification; additive; manufacturing

Developing customized implants with successful bone integration is important for dental, maxillofacial, and orthopedic care in**Ontario. Liburdi has a unique direct energy deposition (DED) based additive manufacturing (AM), or 3D printing, technology that**can be further developed to efficiently produce highly customized/personalized implants on demand.**While metallic implants have become common place in dentistry and joint replacement surgeries, between 10-15% of orthopedic**and 2% of dental implants that bond to bone still fail in service within 20 years. In addition, many patients had infections from the**surgical procedures or during recovery. These problems demonstrate the need for novel surface modification processes optimized**for the additive manufacturing of metallic implant applications.**This project aims to develop new surface modification techniques that are compatible with Liburdis direct energy deposition**based AM technologies. The proposed project will focus on surface modification approaches that will 1) selectively produce**advanced surface morphology by laser machining for improved osseointegration; and 2) reduce post-surgery**infection/inflammatory response using polymer based surface modification. Integration of such technology development with**customized implant design, implant production, surgical planning, and post-surgery management will lead to a complete medical**implant solution, which will lead to a new product by Liburdi and ultimately benefit implant recipients.**.**Ontario

在 ** 安大略，开发具有成功骨整合的定制植入物对于牙科、颌面和整形外科护理非常重要。Liburdi拥有独特的基于直接能量沉积（DED）的增材制造（AM）或3D打印技术，** 可进一步开发，以按需高效生产高度定制/个性化的植入物。虽然金属植入物在牙科和关节置换手术中已经变得很常见，但10-15%的骨科 ** 和2%的牙科植入物在20年内仍然无法使用。此外，许多患者在手术过程中或恢复期间发生感染。这些问题表明需要为金属植入物应用的增材制造优化 ** 的新型表面改性工艺。该项目旨在开发新的表面改性技术，与Liburdis直接能量沉积 ** 为基础的AM技术兼容。拟议项目将重点关注表面改性方法，这些方法将：1）通过激光加工选择性地产生 ** 高级表面形态，以改善骨整合; 2）使用基于聚合物的表面改性减少术后 ** 感染/炎症反应。将这种技术开发与 ** 定制植入物设计、植入物生产、手术计划和术后管理相结合，将形成一个完整的医疗 ** 植入物解决方案，这将导致Liburdi的新产品，并最终使植入物接受者受益。安大略