Prototype Development of MEMS Sensor Based Total Hip Navigation System

基于 MEMS 传感器的全髋关节导航系统原型开发

• 批准号: 8061153
• 负责人: Robert Thornberry
• 金额: $ 21.33万
• 依托单位: THORNBERRY TECHNOLOGIES, LLC
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-09 至 2013-03-08
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8061153
• 关键词: Algorithms; Applications Grants; Arthroplasty; Articular Range of Motion; Computer Assisted; Computer software; Computers; Coupled; Data; Data Set; Development; Devices; Digital Signal Processing; Dislocations; Electromagnetics; Ensure; Environment; Foundations; Goals; Head; Hip region structure; Hospital Charges; Housing; Image-Guided Surgery; Imagery; Implant; Incidence; Institutional Review Boards; Legal patent; Measurement; Mechanics; Methods; Modeling; Motion; Navigation System; Neck; Noise; Operating Rooms; Operative Surgical Procedures; Optics; Output; Patients; Pelvis; Phase; Positioning Attribute; Procedures; Process; Relative (related person); Research; Resistance; Rotation; Signal Transduction; Solid; Source; Stream; Surface; Surgeon; Surgical Instruments; System; Technology; Testing; Time; Translations; Value Orientations; Wireless Technology; analog; base; bone; computerized data processing; cost; cost effective; design; digital imaging; graphical user interface; high reward; implantation; improved; innovation; instrument; instrumentation; kinematics; performance tests; product development; programs; prototype; radiofrequency; seal; sensor; simulation; stem; three-dimensional modeling; tool

DESCRIPTION (provided by applicant): We propose the development of a user (surgeon) friendly time efficient and cost effective system for accurate and repeatable intraoperative patient-specific THA component positioning based on a new paradigm of accelerometer and gyroscope inertial measurement units (IMUs) using newly patented and patent pending technologies. The successful development of this product will significantly increase the accuracy of THA surgery thereby drastically reducing the number of revision THAs and the overall cost. The proposed product will consist of the following: " IMU tracking: accurate, robust, low cost arrays of miniature MEMS gyroscopes and accelerometers will be coupled with digital signal processing and a wireless transceiver. These IMU's will be placed on the surgical table, the patient's pelvis and attached or embedded in surgical tools. "Imageless patient-specific kinematic ROM model: detailed modeling of the patient hip kinematics will be performed to determine the optimal implant specific acetabular cup orientation and femoral implant alignment to avoid malposition and impingement." Post Processing and graphical user interface (GUI): fusing of IMU sensor signals will be performed using new algorithms and processes to distill 3D rotations and translations and display them on 3D models of the pelvis and instrumentation on a computer screen in real- time for the surgeon. ROM models will also be visualized in this system to help the surgeon with ROM reference during component positioning. The goal of this research is to produce a navigation system using an IMU tracking system on the pelvis, the surgical tools (acetabular reamer/size/impactor), and a surgical table unit that receives and processes data from all sources. PUBLIC HEALTH RELEVANCE: Total hip arthroplasty (THA) revision surgery is too often required due to implantation inaccuracy. This project will design, develop and test a new method of implanting THA components using optimized MEMS sensor devices affixed to or implanted in standard implantation instruments and trials to increase accuracy.

描述（由申请人提供）：我们建议开发一种用户（外科医生）友好的时间效率和成本效益系统，用于准确和可重复的术中患者特定THA组件定位，该系统基于使用新专利和专利申请技术的加速度计和陀螺仪惯性测量单元（伊穆斯）的新范例。该产品的成功开发将显著提高THA手术的准确性，从而大幅减少THA翻修的数量和总成本。拟议的产品将包括以下内容：“IMU跟踪：精确、坚固、低成本的微型MEMS陀螺仪和加速度计阵列将与数字信号处理和无线收发器相结合。 这些IMU将被放置在手术台、患者骨盆上，并连接或嵌入手术工具中。“无图像患者特定运动学ROM模型：将对患者髋关节运动学进行详细建模，以确定最佳植入物特定髋臼杯方向和股骨植入物对线，以避免错位和撞击。“后处理和图形用户界面（GUI）：IMU传感器信号的融合将使用新的算法和过程进行，以提取3D旋转和平移，并将其显示在计算机屏幕上的骨盆和仪器的3D模型上，供外科医生真实的实时使用。ROM模型也将在该系统中可视化，以帮助外科医生在组件定位期间参考ROM。本研究的目标是使用骨盆上的IMU跟踪系统、手术工具（髋臼扩髓钻/尺寸/打入器）和接收和处理所有来源数据的手术台单元生产导航系统。 公共卫生相关性：由于植入不准确，全髋关节置换术（THA）经常需要翻修手术。该项目将设计、开发和测试一种植入THA组件的新方法，该方法使用固定或植入标准植入工具和试验中的优化MEMS传感器装置，以提高准确性。