PRACTICAL CONTROLLED-IMPEDANCE ABOVE KNEE PROSTHESIS

实用的可控阻抗膝关节假体

• 批准号: 3490710
• 负责人: HAROLD H SEARS
• 金额: $ 5万
• 依托单位: MOTION CONTROL, INC.
• 依托单位国家: 美国
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-02-10 至 1992-08-09
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3490710
• 关键词: amputation; bioengineering /biomedical engineering; biomedical equipment development; body physical activity; clinical biomedical equipment; electrical impedance; electromyography; electronic stimulator; joint prosthesis; knee; limb movement; robotics

The object of the work proposed is to develop an advanced controlled- impedance spring/damping device for an above knee prosthesis which can be controlled by the amputee wearing the limb or, eventually by automatic adjustments to parameters like gait speed and load on the leg. By utilizing recent advances in small robotic actuators and sensors, a practical device is now possible which interfaces with present knee/shin set ups, to implement both automatic and user-controlled variations in the knee impedance for an above knee prosthesis. This will above knee amputees much more direct control over the knee joint. Walking and running may be more smooth and stable and the amputee will be able to adapt easier to variations in cadence and activity, e.g., up hill or down hill walking and sports activities. Such a system (i.e., easily programmable and adjustable) could also function as an evaluation tool during the prosthesis fitting stage, for determining certain pre- programmed settings in a simpler, less expensive knee joint installed in the finished limb.

拟议工作的目标是开发一种先进的受控 用于膝上假肢的阻抗弹簧/阻尼装置，可以是 由佩戴肢体的截肢者控制，或者最终由自动控制 调整步态速度和腿部负载等参数。 经过 利用小型机器人执行器和传感器的最新进展， 现在可以使用实用的设备来连接现有的膝盖/胫骨 设置，以实现自动和用户控制的变化 膝上假体的膝阻抗。 这将在膝盖以上 截肢者可以更直接地控制膝关节。 步行和 跑步可能会更加平稳，截肢者将能够 更容易适应节奏和活动的变化，例如上坡或下坡 爬山和体育活动。 这样的系统（即，很容易 可编程且可调节）也可以用作评估工具 在假肢装配阶段，为了确定某些预 安装在更简单、更便宜的膝关节中的编程设置 完成的肢体。