Rolling Joint Prosthetic Leg

滚动关节假腿

基本信息

批准号：
6626016
负责人：
Mark Pitkin
金额：
$ 36.28万
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 2005-04-30
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6626016
关键词：
amputation ankle artificial limbs bioengineering /biomedical engineering biomaterial interface interaction biomechanics biomedical equipment development clinical biomedical equipment clinical research foot human subject joint prosthesis knee patient oriented research

项目摘要

The Phase II project is to complete development of a new Rolling Joint Prosthetic Leg comprising a Rolling Joint (Free-Flow) Foot and Ankle and the Rolling Joint Prosthetic Knee. Original design of both prostheses is based on a Rolling Joint Technology, recently developed by the applicants. The Rolling Joint Foot and Ankle was commercialized in October of 1999. Major efforts during the Phase I of the current study were developed to design, manufacture and testing of the new Rolling Joint Knee. As results of the Phase I study showed, development of Rolling Joint Prosthetic Leg has merit to be continued. Development and testing of the Rolling Joint Knee will be completed during the Phase II proposed. Additional research will be conducted to verify the hypothesis that patients with trans-femoral amputations will benefit from aan assembly of both Rolling Joint Units in a Rolling Joint Leg. New methodology for individual tuning of critical parameters of prostheses will be developed. It will provide more normal, less painful locomotion in a lower limb amputee and increase number of patients to be managed prosthetically. The specific aims of the Phase II project. Complete a development of a new Knee unit prototype with compliant tibial component; conduct a comparative mechanical tests and biomechanical gait study with 20 trans-femoral amputees to verify the hypothesis that a new prosthetic device with the proposed mechanical outcome improves a trans-femoral amputee gait by normalizing "stump-socket" interface during stance phase of gait. Long term objectives of the proposed research are to develop a functional, reliable and economical prosthetic modular system. PROPOSED COMMERCIAL APPLICATIONS: Potential commercial application is the creation of a product line of Rolling Joint Feet and Knees. The RJ Leg will enhance performance of transfemoral amputees without increasing the cost, thus providing a highly competitive product in the field of prosthetic rehabilitation.

第二阶段项目是完整开发新的滚动关节假肢腿，其中包括滚动接头（自由流）脚和脚踝以及滚动的关节假肢膝盖。这两个假体的原始设计都是基于申请人最近开发的滚动联合技术。滚动脚和脚踝于1999年10月进行了商业化。在本研究的第一阶段中进行了重大努力，以设计，制造和测试新的滚动关节膝盖。正如I阶段研究的结果所表明的那样，滚动关节假体腿的发展值得继续。滚动关节膝盖的开发和测试将在提议的第二阶段期间完成。将进行进一步的研究，以验证以下假设：跨女性截肢的患者将受益于滚动关节腿中两个滚动关节单元的AAN组装。将开发用于个人调整假体关键参数的新方法。它将在下肢截肢者中提供更正常，较少的痛苦运动，并增加以假肢治疗的患者数量。第二阶段项目的具体目的。完成具有合规性胫骨成分的新膝盖单元原型的开发；进行比较的机械测试和生物力学步态研究，并使用20种跨女性截肢者进行验证，即通过在步态阶段期间，具有拟议机械结果的新的假体设备可以通过使“树桩固定式”界面归一化的“树桩固定器”界面来改善跨妇女截肢的步态。拟议研究的长期目标是开发功能，可靠和经济的假体模块化系统。拟议的商业应用：潜在的商业应用是创建滚动脚和膝盖的产品线。 RJ腿将在不增加成本的情况下提高股份截肢者的性能，从而在假肢康复领域提供高度竞争性的产品。