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ROLLING JOINT PROSTHETIC LEG

滚动关节假腿

基本信息

批准号：
6014650
负责人：
Mark Pitkin
金额：
$ 9.46万
依托单位：
POLY-ORTH INTERNATIONAL
依托单位国家：
美国
项目类别：
财政年份：
1999
资助国家：
美国
起止时间：
1999-09-28 至 2000-03-27
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6014650
关键词：
amputation ankle artificial limbs bioengineering /biomedical engineering biomechanics clinical biomedical equipment foot human subject joint prosthesis knee technology /technique development

项目摘要

Phase I involves manufacturing and testing a Rolling Joint Prosthetic Leg (RJ Leg), comprisingly a newly developed Rolling Joint Foot (RJ Foot) and Rolling Joint Knee (RJ Knee). Prosthetic rolling joints will significantly impact the comfort and independence of the transtibial and transfemoral amputees and increase the number of persons, especially elderly, able to wear lower limb prostheses. The specific aims of the project. (1) Manufacture the RJ Knee prototype, which mechanism yields a resistive curve similar to the biological knee joint. (2) Mechanically test stance flexion of the RJ Knee, and shock absorption, rotational stiffness and eversion/inversion of the RJ Foot. (3) Conduct a biomechanical study of 405 transfemoral (AK) amputees wearing a RJ Leg prototype and comparing it to their existing prostheses on: normalizing range of motion in the knee joint; decreased peak pressures between residuum and a socket. This will increase functionality of the leg prosthesis by normalizing the synergetic relationship between the motion in prosthetic ankle and knee during the stance phase of the gait. Long term objectives of the proposed research, are to: develop a functional, reliable and economical prosthetic leg modular system, and a system for synergetic alignment of the components. PROPOSED COMMERCIAL APPLICATION Potential commercial applications is the creation of a product line of Rolling Joint Feet and Knees. The RJ Leg will enhance performance of amputees without increasing cost, thus providing a highly competitive product in the field of prosthetic rehabilitation.

第一阶段涉及制造和测试滚动关节假腿（RJ Leg），包括新开发的滚动关节脚（RJ Foot）和滚动关节膝（RJ Knee）。假肢滚动关节将显着影响小腿和股骨截肢者的舒适度和独立性，并增加能够佩戴下肢假肢的人数，特别是老年人。该项目的具体目标。 (1) 制造RJ膝原型机，其机制产生类似于生物膝关节的电阻曲线。 (2) 机械测试 RJ 膝的站立屈曲以及 RJ 足的减震、旋转刚度和外翻/内翻。 (3) 对 405 名佩戴 RJ Leg 原型的股骨 (AK) 截肢者进行生物力学研究，并将其与他们现有的假肢进行比较：使膝关节的运动范围正常化；降低残渣和插座之间的峰值压力。这将通过规范步态站立阶段假肢踝关节和膝关节运动之间的协同关系来增强腿部假肢的功能。拟议研究的长期目标是：开发功能齐全、可靠且经济的假肢模块化系统，以及组件协同对准的系统。拟议的商业应用潜在的商业应用是创建滚动关节脚和膝盖的产品线。 RJ Leg将在不增加成本的情况下提高截肢者的表现，从而为假肢康复领域提供极具竞争力的产品。