Multigrasp Myoelectric Control of a Hand Prosthesis, and Assessment of Efficacy

手假肢的多抓握肌电控制及功效评估

基本信息

批准号：
8233312
负责人：
Michael Goldfarb
金额：
$ 19.22万
依托单位：
VANDERBILT UNIVERSITY
依托单位国家：
美国
项目类别：
财政年份：
2011
资助国家：
美国
起止时间：
2011-03-01 至 2015-02-28
项目状态：
已结题

项目摘要

DESCRIPTION (provided by applicant): After suffering limb loss, upper extremity amputees generally have two options in prosthesis types for functional replacement of the hand - body powered or myoelectric type devices - both of which offer very limited restoration of hand function. Recent advances in robotics technology have enabled multigrasp hand prostheses which hold the promise of greatly enhancing functional replacement of the missing hand. Such prostheses, however, will not be useful without a user interface that enables the amputee to quickly, easily, and effectively assess the multigrasp capability of the hand. The investigators have developed a user interface for a multi- grasp prosthesis that (based on preliminary work) provides intuitive, real-time, direct control of multiple hand postures. The proposed control structure augments EMG information from the user with position and force in- formation from sensors in the hand, and leverages this combined information to provide a degree of semi- autonomous coordination, which in turn greatly simplifies the user's control of and interaction with the hand prosthesis. As such, the objective of the proposed work is to implement this multigrasp myoelectric control interface on a multigrasp hand prosthesis on five unilateral transradial amputee subjects, and assess the efficacy of the multigrasp hand when performing manual tasks, relative to their state-of-the-art single-grasp myoelectric prosthetic hands. The outcome of the efficacy study could either validate, or bring into question, the functional merit of multigrasp hand prostheses relative to the single-grasp state-of-the-art. PUBLIC HEALTH RELEVANCE: As of 2005, there were approximately 41,000 persons living in the United States with major (i.e., excluding loss of fingers) upper limb amputations. Current hand prostheses offer these amputees very limited restoration of hand function. This study proposes a prosthetic hand and interface controller that could provide considerably improved restoration of hand function, and thus could offer considerably improved quality of life for upper extremity amputees.

描述（由申请人提供）：肢体损失后，上肢截肢者通常在假体类型中有两种选择，用于替换手动驱动或肌电类型的设备，这两种设备都提供了非常有限的手动功能。机器人技术技术的最新进展使Multigrasp手提伪造能够大大提高失踪手的功能替代。但是，如果没有用户界面使截肢者能够快速，轻松，有效地评估手的多式传输能力，那么这些假体将不会有用。研究人员已经开发了一个用户界面，用于多个掌握假体，该假体（基于初步工作）提供了直观的，实时的直接控制多种手部姿势。所提出的控制结构可以从用户的位置和力量从手中的传感器中提出EMG信息，并利用此组合信息提供一定程度的半自主协调，这反过来又大大简化了用户对手动假体的控制和互动。因此，拟议工作的目的是在五个单方面跨放大器受试者上实现MultiGRASP肌电肌电控制界面，并在执行手动任务时，就其目的是其目前的单一手动任务时，就评估了Multigrasp Hand的疗效，相对于其目的是他们的目的是其目前的单一格拉斯·格拉斯（Art-Art-Art-Art-Art）单手Myoeelect Myoelect Myoelectressrictrics Prosthetic Proshetic Hands。疗效研究的结果可能会验证或质疑Multigrasp手提假体相对于单个最新的抓地力的功能功能。公共卫生相关性：截至2005年，在美国，大约有41,000人居住着上肢截肢的主要（即不包括手指损失）。当前的手提假设提供了这些截肢者的手部功能的恢复非常有限。这项研究提出了一个假肢和界面控制器，可以提供大大改善的手部功能的恢复，因此可以为上肢截肢者提供大大改善的生活质量。