首页|面向脑卒中患者的上肢康复机器人自适应辅助训练方法研究

面向脑卒中患者的上肢康复机器人自适应辅助训练方法研究

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目的 针对脑卒中患者术后不同阶段的康复需求,旨在提高患者康复训练进程中的参与程度与运动表现。方法 通过感知患者在训练轨迹中的运动模式信息,结合普适性的够取特征约束量,进行训练轨迹的自适应矫正,在此基础上,设计基于动态阻抗的人机交互控制器,基于期望运动任务与患者实际康复状态动态优化机器人的辅助力水平。结果 基于不同康复阶段患者的运动功能状态,对脑卒中诱发的病态运动轨迹进行了自适应纠偏,训练任务轨迹跟踪误差降低25。64%,并且实现了人机交互辅助力的按需调整。结论 本文方法在脑卒中术后康复训练中提供动态辅助力提高患者的主动参与度,有利于辅助患者进行脑功能重塑,从而实现对正常肢体运动模式的重新学习。
Research on adaptive assisted training methods of upper-limb rehabilitation robots for post-stroke patients
Objective Targeting the rehabilitation needs of post-stroke patients at different stages after surgery,the aim is to improve their participation and motor performance in the rehabilitation training process.Methods The patient's motion pattern information in the training trajectory is perceived,and combined with the universal feature constraint,the training trajectory is adaptively corrected;The human-machine interaction controller based on dynamic impedance is designed to optimize the rehabilitation robot's interactive force level based on the expected motion task and the patient's actual rehabilitation status.Results Based on the motor function status of post-stroke patients at different rehabilitation stages,the pathological motion trajectory induced by stroke was adaptively corrected,reducing the trajectory tracking error by 25.64%in the robot-assisted rehabilitation training.Conclusion The proposed method can provide dynamic interactive force in rehabilitation training to improve the patient's active participation,which is beneficial to assist patients in reshaping brain function and thus achieving relearning of normal limb movement patterns.

Rehabilitation robotsActive trainingTrajectory correctionSmooth controlHuman-Robot interaction

王晨、杨钒、佟丽娜、侯增广

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中国科学院自动化研究所多模态人工智能系统全国重点实验室,北京 100190

中国矿业大学(北京)人工智能学院,北京 100083

康复机器人 主动训练 轨迹矫正 柔顺控制 人机交互

2024

现代仪器与医疗
中国科学器材公司

现代仪器与医疗

影响因子:1.47
ISSN:2095-5200
年,卷(期):2024.30(6)