EXTERNALLY POWERED PROSTHETIC HAND AND WRIST

运动控制建议开发一种改进的外部供电 假肢手/手腕系统，它减少了重量低于目前的 标准，并集成被动手腕弯曲/伸展到手中。的 在广泛的调查中已经确定了对这种手/腕系统的需求 手臂截肢者（Aitkins等人，初级专业人员，1996年冬季，1998/1）。手臂截肢者需要 手腕弯曲，使手以最佳方式抓住物体，或 抓住物体后重新定位。这一发展的可行性， 第一阶段的成就支持了这一点。目标一是 开发一种新的假肢手，完全与被动手腕结合在一起， 屈曲/伸展器械。第二个目标是减轻 手这两个目标都已成功实现， 这只手的原型已经建成并进行了实验室测试。在第二阶段， 我们建议完成三个主要的设计和测试迭代。第一 迭代包括彻底的实验室测试;接下来的两个迭代将 临床测试。我们相信，第二阶段的努力将导致 为手臂截肢者提供假手的重大改进， 商业上可行的产品。 拟定商业应用： 这项研究的预期成果将是一个假肢手/手腕系统 上肢截肢者的治疗方法 这种手和手腕系统将是一个重要的 改进现有系统。

Motion Control proposes to develop an improved externally powered prosthetic hand/wrist system, which reduces the weight below the current standard, and integrated passive wrist flexion/extension into the hand. The need for such a hand/wrist system has been established in an extensive survey of arm amputees (Aitkins, et.al.,JPO, Vol 8/1, Winter 96). Arm amputees need flexion at the wrist to orient the hand to optimally grasp an object, or to reorient an object once it is grasped. The feasibility of this development has been supported by the accomplishments of Phase I. Objective number one was to develop a new prosthetic hand that is fully integrated with a passive wrist flexion/extension device. Objective number two was to reduce the weight of the hand. Both of these objectives have been met successfully and a preliminary prototype of this hand has been built and laboratory tested. During Phase II, we propose to complete three major design and testing iterations. The first iteration includes thorough laboratory testing; the next two iterations will be clinically tested. We are confident that this Phase II effort will lead to significant improvements to prosthetic hands for arm amputees, and will be a commercially viable product. PROPOSED COMMERCIAL APPLICATION: The expected results of this research will be a prosthetic hand/wrist system for upper extremity amputees. This hand and wrist system will be a significant improvement over currently available systems.