Compex Motion: Neuroprosthesis for grasping applications

The Compex Motion is a versatile electrical stimulation system with surface stimulation technology that can be used to develop various custom-made neuroprostheses, neurological assessment devices, muscle exercise systems, and experimental set-ups for physiological studies. This stimulator allows users to generate an arbitrary stimulation protocol that can be controlled or regulated using any external sensor, sensory system, or laboratory equipment. The Compex Motion system is modular, providing users with an unlimited number of stimulation channels, and promoting the application of complex sensory systems and user interfaces. This stimulator is specially designed to encourage sharing of stimulation protocols, sensors, and user interfaces. This feature promotes share-ware mentality, which, in our opinion, can be instrumental in accelerating technological developments in the neuroprostheses field. The Compex Motion system is especially designed for rehabilitation treatments administered during early rehabilitation (for example, immediately after stroke or spinal-cord injury), although it can also be applied as a neuroprosthetic system for patients to use in activities of daily living. In this chapter, an example is provided where the Compex Motion system was used to develop a neuroprosthesis for grasping for a 22-year-old male, C5 motor complete, C4 sensory complete, spinal-cord injured patient.