The FX-series medical assistant droid, also known as Fixits, represented a specific model within a ten-model range produced by Medtech Industries and classified as a medical droid. These droids frequently worked alongside 2-1B-series medical droids. It's worth noting that the FX-series shared a comparable designation with the FX-2 and FX-6 droid models, both observed during the High Republic Era.
These droids were constructed with several appendages and were intended to care for individuals needing medical attention, execute diagnostic evaluations, manage instruments, and suggest appropriate treatments. Two examples of these droids include FX-9 and FX-7; the first one provided a blood transfusion to Darth Vader, who was seriously injured, during a significant operation, while the second one kept watch over Luke Skywalker as he recuperated inside a bacta tank.