PROSTHETIC ROLLING JOINT FOOT AND ANKLE

本项目旨在开发一种滚动关节假肢足和踝关节 （RJFA）与新发明的凸轮滚动踝关节，其运动学和 动态结果（三个平面中的抗偏转力矩）为 更接近生物原型。 本项目的具体目标是：（1）优化自主 原型参数，如滚动表面的几何形状， 弹性带，带的连接方法，胫骨的刚度， 脚的组成部分，按照数学模型制定;（2） 在俄亥俄州制造和机械测试了两种原型 柳木公司（OWW），山。Sterling，OH;（3）进行试点 使用RJFA原型进行行走的生物力学研究（4-5名受试者）， 证明一个假设，即一个新的机制与拟议的结果改善 通过使现有膝关节性能正常化来实现BK截肢者步态， 增加站立的稳定性。 完成后，拟议研究的潜在商业应用 第一阶段和第二阶段是在OWW创建新的产品线。 本研究的长期目标是发展持久和 经济的RJFA，这将提高性能的截肢者利用 新的机械特征而不增加成本。 拟议的商业应用： 拟议的研究是创建一个新的假体的产品线， 滚动关节足和踝关节。 这种新设备将提高性能， 一个截肢者，而不增加成本，这将导致一个高度 竞争产品。

This project is to develop a Rolling Joint Prosthetic Foot and Ankle (RJFA) with a newly invented cam rolling ankle joint, which kinematic and dynamic outcome (moment of resistance to deflection in three planes) is closer to the biological prototype. The specific aims of the project, are: (1) optimize the independent prototype parameters, such as geometry of rolling surfaces, rigidity of elastic band, methods of bands's attachment, stiffness of the tibia and foot components,in accordance with a mathematical model developed; (2) manufacture and mechanically test two kind of prototypes at the Ohio Willow Wood Company (OWW), Mt. Sterling, OH; (3) conduct a pilot biomechanical study of walking (4-5 subjects) with the RJFA prototypes to prove a hypothesis that a new mechanism with the proposed outcome improves a BK amputee gait by normalizing of the existing knee performance and increasing stability of stance. Potential commercial application of the proposed research upon completing Phase I and Phase Il is the creation of a new product line at the OWW. Long term objective of this research is development of durable and economical RJFA, which will enhance performance of an amputee by utilizing new mechanical features without increase in the cost. PROPOSED COMMERCIAL APPLICATION: Potential commercial application of the proposed research is the creation of a product line of a new Prosthetic Rolling Joint Foot and Ankle. This new device will enhance performance of an amputee without increase in cost, which will result in a highly competitive product.