智能上肢假肢感觉反馈研究进展

Research Progress of Sensory Feedback for Intelligent Upper-limb Prosthesis

近年来,具有神经控制和感觉反馈能力的双向生机接口成为智能上肢假肢的发展趋势。目前,大部分的研究集中在上肢假肢的机构、传感器设计和神经控制等领域,而在感觉反馈方面的研究较少,缺乏合适的感觉反馈降低了智能假肢的操作性能并限制了假肢的实际应用。首先概述了智能假肢双向生机接口的现状,然后详细介绍了基于经皮神经电刺激、振动刺激、压力刺激等感觉反馈方法,以及感觉替代、模态匹配、躯体特定区匹配等感觉反馈策略,在此基础上对上肢假肢感觉反馈的自然性和交互信息的多模态等发展趋势进行了展望。

In recent years,the bidirectional bio-machine interface with the ability of neural control and sensory feedback has become the development trends of intelligent upper limb prosthesis.Most of the research focuses on the mechanism,sensor design and neural control of upper limb prosthesis,while less research on sensory feedback.The lack of reliable sensory feedback reduces the operational performance and limits the practical application of prosthetics.Firstly,the development status of bidirectional bio-machine interface of intelligent prosthesis is briefly summarized.Sensory feedback methods based on transcutaneous electrical nerve stimulation,vibration stimulation and pressure stimulation are introduced in detail.Sensory feedback strategies including sensory substitution,modality matched feedback and somatotopic matched feedback are also discussed.Based on the analysis,the naturalness of upper limb prosthetic sensory feedback and the multimodality of interactive information are prospected.