DD-13
this medical droid was developed by Ubrikkian Industries as a surgeon, specializing in cybernetic replacements, during the last decades of the Old Republic. It was known as the Galactic Chopper in many circles, in reference to its rough handling of patients and its usefulness in removing damaged limbs in favor of cybernetic replacements. The DD-13 surgeon droid stood just over 1.8 meters in height, moved about on a set of three spindly legs, and had a minimally humanoid form. What it lacked in bed-side manner, the DD-13 made up for in it ability to quickly and carefully connect a cybernetic prosthesis to a living host. The DD-13 was originally designed to serve on Ubrikkian transport ships, but the ship designs proved to be unworkable. So, the DD-13 manufactured simply for hospital use. Many of these droids were employed by the Separatists for the surgeries that were done on General Grievous and Darth Vader.