EXTERNALLY POWERED PROSTHETIC HAND AND WRIST

运动控制公司建议开发一种改进的外部动力 假手/手腕系统，可将重量减轻到当前重量以下 标准，并将被动手腕屈曲/伸展集成到手中。这个 在一项广泛的调查中，已经确定了对这种手/腕系统的需求 手臂截肢者(Aitkins等人，JPO，第8/1卷，1996年冬季)。手臂截肢者需要 手腕屈曲，使手的方向最佳地抓住物体，或 一旦对象被抓住，就重新确定其方向。这一开发的可行性已经 得到了第一阶段成就的支持，第一个目标是 开发一种与被动手腕完全集成的新型假手 屈伸装置。第二个目标是减轻 手。这两个目标都成功地实现了，并初步实现了 这只手的原型已经制作完成，并在实验室进行了测试。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；下两个迭代将是 经过临床测试。我们相信，这一第二阶段的努力将导致 对手臂截肢者假手的重大改进，将是一个 商业上可行的产品。 建议的商业应用： 这项研究的预期结果将是一种假手/手腕系统 上肢截肢者。这个手和手腕系统将是一个重要的 对目前可用的系统进行了改进。

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.