Design of functional electrical stimulator for foot drop rehabilitation

Abstract

This paper designed a functional electrical stimulator controlled by STM32F103 microprocessor for the rehabilitation of foot drop patients. The frequency, pulse width, period and other parameters of the electrical stimulator are set by the upper computer and transmitted to the remote controller. The remote controller then controls the lower computer to adjust the stimulus intensity through Bluetooth for electrical stimulation treatment. The electric stimulator outputs the stimulus current through the boost control circuit and the constant current output circuit. The results show that the functional electrical stimulator can adjust the therapeutic pulse in the range of 0-100mA current intensity, 17-40Hz frequency and 100-300?s pulse width. The design is easy to use, high degree of automation, easy to use in the home and hospital.