A Biomimetic, Self Tuning, Fully Adaptable Smart Lower Limb Prosthetics with Energy Recovery

具有能量回收功能的仿生、自调节、完全适应性智能下肢假肢

基本信息

批准号：
EP/K020463/1
负责人：
Abbas Dehghani-Sanij
金额：
$ 78.83万
依托单位：
University of Leeds
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2013
资助国家：
英国
起止时间：
2013 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK020463%2F1
关键词：
Biomimetic Self Tuning Fully Adaptable

项目摘要

Every year, thousands of people lose a lower limb as a result of a range of factors such as circulatory problems, complications of diabetes or trauma. Current lower limb prostheses can be divided into three groups: i) Purely passive mechanical and requiring a significant voluntary control effort; ii) Actively controlled in which the limb performance is measured and parameters altered to improve performance; iii) Actively driven, or powered prostheses using actuators to directly input mechanical work into the limb. The latter devices do not take into consideration the dynamic interaction between the body elements and prostheses. As a result, they require large amounts of energy and have low efficiency. Therefore they are not in harmony and synergy with the human body. Hence, there is a need for a new generation of lower limb prostheses which can mimic the human muscle by combining active and passive modes. The new generation of prostheses should have a plug and play characteristic and the limb would self tune to the current walking situation (level, slopes and stairs) to optimise the system performance to the user. During the walking cycle, the artificial limb will switch between delivering energy to the walking motion to harvesting energy during the swing phase; prolonging battery power and reducing the burden on the batteries. The aim of this project is to design and develop a new smart lower limb prosthesis through a research programme structured around the following activities. 1) Use of body hub sensors to measure gait dynamics in real time;2) Use of prosthesis integrated sensors interfaced with the human limb to measure reaction loads during prosthesis use; 3) Estimation of user intent and evaluation of the potential for haptic or other forms of feedback from the prosthesis to enhance its usability; 4) Optimisation of energy use through dynamic coupling and energy generation; and 5) Improvements in limb comfort associated with extended periods of wear.The outcome of the research will be a step change towards the use of technology in relation to the human body and mobility considering human-machine dynamic interaction. The research outcomes will address a number of healthcare challenges associated with the restoration of mobility in amputees, and paves the way for a new direction in the design and development of devices to support mobility in an aging population and applications such as the rehabilitation of stroke patients. The world's third largest manufacture of prosthetics is in the UK and this research will boost the advancement of the UK position worldwide by providing enhanced opportunities for commercialisation.

每年，成千上万的人由于循环系统问题、糖尿病并发症或外伤等一系列因素而失去下肢。目前的下肢假肢可分为三类： i) 纯被动机械假肢，需要大量的自愿控制努力； ii) 主动控制，测量肢体性能并改变参数以提高性能； iii) 使用执行器将机械功直接输入到肢体的主动驱动或动力假肢。后一种装置没有考虑身体元件和假肢之间的动态相互作用。因此，它们需要大量能源且效率低。因此它们与人体不和谐、不协同。因此，需要能够通过结合主动和被动模式来模仿人体肌肉的新一代下肢假肢。新一代假肢应该具有即插即用的特性，并且肢体可以根据当前的行走情况（水平、斜坡和楼梯）进行自我调整，以优化用户的系统性能。在行走周期中，假肢将在向行走运动输送能量和在摆动阶段收集能量之间切换；延长电池电量并减轻电池负担。该项目的目的是通过围绕以下活动构建的研究计划来设计和开发新型智能下肢假肢。 1) 使用身体中枢传感器实时测量步态动态；2) 使用与人体肢体接口的假肢集成传感器来测量假肢使用过程中的反应负荷； 3）估计用户意图并评估假肢触觉或其他形式反馈的潜力，以增强其可用性； 4）通过动态耦合和能源生成优化能源使用； 5) 与长时间佩戴相关的肢体舒适度的改善。研究的结果将是考虑人机动态交互的人体和移动性相关技术的使用的一步改变。研究成果将解决与截肢者恢复活动能力相关的许多医疗保健挑战，并为设计和开发支持老龄化人口活动能力的设备以及中风患者康复等应用的新方向铺平道路。世界第三大假肢制造商位于英国，这项研究将通过提供更多的商业化机会来促进英国在全球的地位的进步。