Portable Functional Electrical Stimulator for Post-Stroke: An Emerging Rehabilitation Tool for Stroke Patients

摘要

Functional electrical stimulatoion (FES) is a technique that uses low levels of electrical currents to activate nerves innervating extremities affected by paralysis resulting from cerebral stroke, spinal cord injury (SCI), or similar conditions. This paper makes a study on functional electrical stimulator using power electronic systems which has wide medical applications. There are different types of stimulators available, but the stimulator discussed in this paper generates different patterns of waveform at the output to correct the foot drop. It is found that various patients require different stimulation pattern with different stimulation intensity. Therefore an important need-based objective is to design a functional electrical stimulator using power electronic systems to generate multi-pattern of stimulation intensities along with novel stimulus waveforms. In addition to the stimulation intensity control, depending on the patient’s status, an effective stimulation control can be given with this stimulator.