FX Droid

The FX-series Medical Droids were often immobile, cylindrical droids with numerous "arms" that assisted patients during surgery or other medical procedures. They could help by cutting away dead flesh, holding items, or even injecting bacta fluid (which is why they were occasionally constructed at command stations during times of war to save injured soldiers).

The FX-6 droid was used to help reconstruct a mutilated Darth Vader.

The FX-7 droid was especially prevalent in the Rebel Alliance's Echo Base.