A hybrid system for upper limb movement restoration in quadriplegics.
A hybrid system for upper limb movement restoration in quadriplegics.
复制标题
用于四肢瘫痪患者上肢运动恢复的混合系统。
作者：
R. Varoto;Elisa Signoreto Barbarini;A. Cliquet
一般来说，四肢瘫痪的人在操作物体时有困难。为了实现令人满意的操作，必须通过自愿控制来执行伸手和抓握动作，为此，抓握力反馈至关重要。建立了一种针对四肢瘫痪患者部分上肢感觉运动恢复的混合系统。该装置由提供前臂支撑的肘部动态矫形器（范围约为20度至120度，平均角速度约为15度/秒）、腕部静态矫形器和用于抓握生成的神经肌肉电刺激，以及带有力传感器的手套（允许抓握力反馈）组成。该手套提供两种用户界面模式：发光二极管视觉或蜂鸣器发出声音。整个系统（肘动态矫形器和电刺激器）的语音控制由患者执行。混合系统提供的运动与患者进行的肩胛骨和肩部运动相结合，可以帮助四肢瘫痪的人完成涉及伸展和抓握运动的任务。
Generally, quadriplegic individuals have difficulties performing object manipulation. Toward satisfactory manipulation, reach and grasp movements must be performed with voluntary control, and for that, grasp force feedback is essential. A hybrid system aiming at partial upper limb sensory-motor restoration for quadriplegics was built. Such device is composed of an elbow dynamic orthosis that provides elbow flexion/extension (range was approximately from 20 degrees to 120 degrees , and average angular speed was approximately 15 degrees /s) with forearm support, a wrist static orthosis and neuromuscular electrical stimulation for grasping generation, and a glove with force sensors that allows grasping force feedback. The glove presents two user interface modes: visual by light emitting diodes or audio emitted by buzzer. Voice control of the entire system (elbow dynamic orthosis and electrical stimulator) is performed by the patient. The movements provided by the hybrid system, combined with the scapular and shoulder movements performed by the patient, can aid quadriplegic individuals in tasks that involve reach and grasp movements.