The Anelastic Strain Response of Spine Rods in a Biologic Environment

生物环境中脊柱杆的滞弹性应变响应

基本信息

批准号：
7980799
负责人：
REED A AYERS
金额：
$ 28.71万
依托单位：
COLORADO SCHOOL OF MINES
依托单位国家：
美国
项目类别：
财政年份：
2010
资助国家：
美国
起止时间：
2010-07-01 至 2013-06-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/7980799
关键词：
Address Adsorption Air Alloys Ally Aluminum Award Behavioral Sciences Biomedical Research Chemicals Collaborations Colorado Corrosion Data Diffusion Discipline Elements Engineering Environment Exposure to Failure Fatigue Goals Hydrogen Image Implant Liquid substance Literature Materials Testing Mechanics Medicine Memory Metals Methodology Methods Mining Modification Movement Nature Operative Surgical Procedures Optics Orthopedics Oxygen Parents Participant Patients Predisposition Property Protocols documentation Recovery Recruitment Activity Reporting Research Research Infrastructure Schools Shapes Simulate Solutions Spinal Stress Students Surgeon Techniques TiAl6V4 Time Titanium Universities Vanadium Vertebral column Work X ray diffraction analysis X-Ray Diffraction clinical application experience graduate student in vivo instrument instrumentation medical schools nanoindentation public health relevance response retinal rods scoliosis

项目摘要

DESCRIPTION (provided by applicant): Utilizing the unique metallurgical and materials expertise at the Colorado School of Mines this work will seek to determine the nature of analeastic responses of titanium and its alloys in a simulated body environment via collaboration with the Department of Orthopedics and the University Of Colorado Denver School of Medicine. We hypothesize that susceptibility of titanium and it alloys to chemical and micro-structural modification from being in the body results in changes to its material properties that can cause pedicle screw pull-out or other spinal instrumentation failure. Create an infrastructure that enables students at the Colorado School of Mines to participate in biomedical research utilizing the expertise at the University of Colorado Medical School. This work will be accomplished using materials analytic techniques of SEM imaging with EDS and EBSD, optical metallographic, X-ray diffraction, and nano-indentation, of spine rods contoured and placed in a simulated body environment for up to 3 months. Undergraduate and graduate students will be actively recruited to be involved in all aspects of the research. In so doing it opens The Colorado School of Mines to applications of it expertise that have not been available. PUBLIC HEALTH RELEVANCE: Utilizing the unique metallurgical and materials expertise at the Colorado School of Mines this work will determine the nature of analeastic responses of titanium and its alloys in a simulated body environment via collaboration with the Department of Orthopedics and the University of Colorado Denver School of Medicine. We hypothesize that susceptibility of titanium and it alloys to chemical and micro-structural modification from being in the body results in changes to its material properties that can cause pedicle screw pull-out or other spinal instrumentation failure.

描述（由申请人提供）：利用科罗拉多矿业学院独特的冶金和材料专业知识，这项工作将寻求通过与骨科和骨科部门的合作，确定钛及其合金在模拟身体环境中的弹性响应的性质。科罗拉多大学丹佛医学院。我们假设钛及其合金在体内对化学和微观结构改变的敏感性会导致其材料特性发生变化，从而导致椎弓根螺钉拔出或其他脊柱器械故障。创建一个基础设施，使科罗拉多矿业学院的学生能够利用科罗拉多大学医学院的专业知识参与生物医学研究。这项工作将使用 EDS 和 EBSD 的 SEM 成像材料分析技术、光学金相、X 射线衍射和纳米压痕技术来完成，对脊柱棒进行轮廓加工并放置在模拟身体环境中长达 3 个月。将积极招募本科生和研究生参与各方面的研究。这样一来，科罗拉多矿业学院就可以应用尚不可用的信息技术专业知识。公共健康相关性：利用科罗拉多矿业学院独特的冶金和材料专业知识，这项工作将通过与骨科系和科罗拉多大学丹佛学院的合作，确定模拟身体环境中钛及其合金的弹性响应的性质医学。我们假设钛及其合金在体内对化学和微观结构改变的敏感性会导致其材料特性发生变化，从而导致椎弓根螺钉拔出或其他脊柱器械故障。