Traditional robotic systems use a steel - reinforced cables containing copper wires to power the vehicle and optical fibers to enable information to be passed between the ship and the vehicle. (whoi.edu)
However, there are very few robotic systems for recovery of shoulder injuries. (sciencedaily.com)
He also points out that robotic systems work without asking for vacations or weekends off, and never call in sick. (scientificamerican.com)