The design and implementation of the passive upper limb rehabilitation robot based on magnetic powder brakes

Most of stroke patients suffer from upper limb hemiplegia in different degrees, while the traditional one-on-one rehabilitation treatment has many shortcomings, such as low efficiency, the rehabilitation process is vague, the effect of rehabilitation is influenced by therapist, etc. In order to overcome those shortcomings, this paper developed an upper limb rehabilitation robot based on magnetic powder brakes, which had 2 DOF (degree of freedom) and one manual adjustment DOF, so that the sicken limbs of patients can move in Quasi-3D space. Because this robot worked in passive mode ever and its rehabilitation strategies was based on PNF technology, so it was much safer and also had certain rehabilitation effect for patients.