对截肢患者肌电假手的功能训练和评定的临床研究

Clinical study of functional training and efficacy evaluation of myoelectric artificial hand in patients with upper limb amputated

目的 探讨截肢患者肌电假手生物反馈训练的最佳方法及其效果评定。方法 14例上肢截肢者 ,共 16只肌电假手 ;男 11例 ,女 3例 ;年龄 (2 5± 8.69)岁 ;右侧截肢 11例 ,左侧截肢 1例 ,双侧截肢 2例。肌电假手生物反馈训练分为 :基础电信号训练、视觉反馈训练和日常生活能力训练。训练时间为 4～ 6周。结果 16只肌电假手均能按照截肢者的意愿实现开手 /闭手及旋腕动作 ,完成穿衣、洗漱、进餐、写字等日常功能。结论 欲使肌电假手达到预期设定的目标 ,其训练有 2个关键 :一是寻找残肢肌肉的最强肌电信号 ;二是不断强化生物反馈过程 。

Objective To study the best method for myoelectric feedback training and evaluate the effectiveness of myoelectric artificial hand. Methods Fourteen cases of upper limb amputees (11 male, 3 female, aged 25±8.69 years, right side 13, left side 3,totally 16 myoelectric artificial hands) were recruited for this study. The biofeedback training process was divided into three steps: basic signal of myoelectric feedback training, visible feedback training, and ADL function training. Results After the training, 16 myoelectric artificial hands could grasp, pinch and rotate wrist, and could perform ADL such as dressing, eating, cleaning. Conclusion To achieve the goal set for the myoelectric artificial hand, emphasis should be on locating the most stronger myoelectric signal of the stump and strengthening the feedback training.