The FX-series medical assistant droid, also referred to as Fixits, was a medical droid that was part of ten-model series manufactured by Medtech Industries. They were often paired with 2-1B surgical droids. They were designed with multiple arms and to look after patients, perform test, operate equipment and recommend procedures. Two such droids were FX-9 and FX-7, the former supplied the severely wounded Darth Vader with blood transfusion during his major surgery, and the latter monitored Luke Skywalker when he was recovering in a bacta tank.