Development of Characterization Controls for 3D-Printed Implants by Direct Energy Deposition

通过直接能量沉积开发 3D 打印植入物的表征控制

• 批准号: 523141-2018
• 负责人: Grandfield, Kathryn
• 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=652314
• 关键词: Development; Characterization; Controls; 3D; Printed

Currently, the largest market share of biomedical implants consists of devices fabricated from metallic materials such as titanium,**and cobalt-chromium alloys using conventional casting processes. While the implantation of these metallic biomaterials has**become common place in dentistry, oral maxillofacial, and joint replacement surgeries, between 10-15% of orthopaedic and 2% of**dental implants still fail in service. The lack of patient specific devices with both appropriate mechanical, materials and biological**properties is one of the causes for this failure. With instruments now capable of printing metals, additive manufacturing, or 3Dprinting,**is a promising technology for manufacturing customized medical implant devices that can be optimized for better success.**However, there remains several challenges related to the materials optimization during additive manufacturing to meet the**stringent materials and mechanical properties for medical implant regulations. A thorough and robust high-resolution materials**characterization and understanding of local mechanical properties will help to advance biomedical implants produced by additive**manufacturing. Liburdi Engineering is interested in developing their manufacturing instrumentation for applications in additive**manufacturing of biomedical implants, since their current direct energy deposition technology has several advantages to**conventional powder-bed additive manufacturing. By partnering with McMaster University, this project will provide significant**advancements in developing the 3D-printing technology by understanding and optimizing the materials produced.**.**Ontario

目前，生物医学植入物的最大市场份额由使用传统铸造工艺的钛、**和钴铬合金等金属材料制成的装置组成。虽然这些金属生物材料的植入已经成为牙科、口腔颌面和关节置换手术中的常见领域，但10%-15%的矫形外科和2%的牙科植入物仍然无法使用。缺乏具有适当的机械、材料和生物**特性的患者专用设备是导致这一失败的原因之一。随着仪器现在能够打印金属、添加剂制造或3D打印，**是一种很有前途的制造定制医疗植入物设备的技术，可以优化以获得更好的成功。**然而，在添加剂制造过程中，仍存在与材料优化相关的几个挑战，以满足**严格的医疗植入物材料和机械性能法规。彻底和强大的高分辨率材料**表征和了解当地的机械性能将有助于推动通过添加**制造生产的生物医学植入物。Liburdi Engineering有兴趣开发他们的制造仪器，用于生物医学植入物的添加剂制造**，因为他们目前的直接能量沉积技术与**传统的粉床添加剂制造相比具有几个优势。通过与麦克马斯特大学的合作，该项目将通过了解和优化生产的材料，在开发3D打印技术方面取得重大进步。**。**安大略省