Acute ischemic stroke (AIS) is a clinical syndrome caused by blood supply disorder of brain tissue, which has the characteristics of high incidence rate and high disability rate, and seriously affects the quality of life of patients. Intravenous thrombolysis is currently an important treatment for AIS, with alteplase being the only thrombolytic drug recommended by all guidelines. However, some patients did not experience improvement or even experienced deterioration in their neurological function after undergoing thrombolysis. Therefore, this article reviews the current status of treatment research on promoting neurological function in patients with AIS after intravenous thrombolysis, in order to explore the importance of combined treatment strategies on further promoting neurological function improvement.
In order to help the patients with upper-limb disfunction go on rehabilitation training, this paper proposed an upper-limb exoskeleton rehabilitation robot with four degrees of freedom (DOF), and realized two control schemes, i.e., voice control and electromyography control. The hardware and software design of the voice control system was completed based on RSC-4128 chips, which realized the speech recognition technology of a specific person. Besides, this study adapted self-made surface eletromyogram (sEMG) signal extraction electrodes to collect sEMG signals and realized pattern recognition by conducting sEMG signals processing, extracting time domain features and fixed threshold algorithm. In addition, the pulse-width modulation(PWM)algorithm was used to realize the speed adjustment of the system. Voice control and electromyography control experiments were then carried out, and the results showed that the mean recognition rate of the voice control and electromyography control reached 93.1% and 90.9%, respectively. The results proved the feasibility of the control system. This study is expected to lay a theoretical foundation for the further improvement of the control system of the upper-limb rehabilitation robot.