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鉴于截肢手术情况,肌肉萎缩程度和病人动作习惯等各种因素的差异,本文提出了四种可用于残肢者的前臂假手控制方案:①用两对电极的三自由度假手控制系统。能单独实现指伸、指屈、腕伸、腕屈、旋前和旋后六个动作。②用两对电极实现三自由度六个动作和两组协调动作(例如:指屈与腕屈同时动作,或指伸与旋后同时动作等)的控制系统。③用两对电极控制的单自由度两个动作的控制系统。④用一对电极控制的单自由度两个动作的控制系统。所有这些方案都已制成具体电路,并在健康人和残肢者身上作了多次试验,证实了可行性。
In view of the amputation, muscle atrophy and patient movement habits and other factors, this paper presents four kinds of forearm artificial hand control scheme that can be used for the residual limbs: ① Three-freedom hand control system with two pairs of electrodes. Can be achieved alone refers to the extension, refers to flexion, wrist stretch, wrist flexion, pronation and supination after six movements. ② with two pairs of electrodes to achieve three degrees of freedom of the six movements and two coordinated action (for example: refers to flexor and wrist flexion simultaneously, or refers to stretch and spin simultaneously after the action, etc.) control system. ③ with two pairs of electrodes controlled by a single degree of freedom of the two movements of the control system. ④ with a pair of electrodes to control the single degree of freedom of the two movements of the control system. All of these programs have been tailored to specific circuits and have been tested on both healthy and mutilated subjects, confirming the viability.