A programmable system of functional electrical stimulation (FES).

Area of Science:

• Biomedical Engineering
• Rehabilitation Technology

Background:

• Functional electrical stimulation (FES) is crucial for restoring function in individuals with paralysis.
• Existing FES systems require effective control and safety mechanisms.

Purpose of the Study:

• To present the development of a novel FES system.
• To validate the system's hardware, software, and safety features for therapeutic applications.

Main Methods:

• Developed a Labview-based virtual instrument for FES control.
• Integrated the virtual instrument with analog and digital hardware circuits via USB.
• Conducted electrical safety tests and analyzed output current parameter accuracy (amplitude, pulse width, frequency).

Main Results:

• The virtual instrument successfully controlled the FES hardware.
• Electrical safety tests demonstrated compliance with literature-reported safety limits.
• Errors in programmed versus real output current values were within acceptable ranges.

Conclusions:

• The developed FES system is safe and effective for paraplegic patient therapy.
• The system's design facilitates reliable control and monitoring of stimulation parameters.