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O. Daud, R. Oboe, F. Oscari, S. Masiero and G. Rosati
Development of a four-channel haptic system for remote assessment of patients with impaired hands
Robotica, pages 1-17, 2016.

Abstract: The use of haptic devices has become an advanced tool in the perspective of neurorehabilitation due to the proven e ectiveness in stimulating the proprioceptive sensing of post-stroke patients. In this work, pre-existing devices are put together in a remote environment, for the teleassessment of impaired hand conditions. A bilateral control system, based on a four-channel architecture, in presence of large and variable time delay, is proposed as a proof of concept. Time delay is handled by using the novel approach of communication disturbance observer (CDOB). This system also implements a scaling down compensation value (SDCV) for the CDOB. The proposed control system was tested successfully in a bilateral haptic interaction, simulating a remote motor and functional evaluation of a patient's hand, guaranteeing a safe and a stable interaction, even in presence of large network delays.


Topic: Medicals
Activity: Active hand orthosis for post-stroke rehabilitation

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