Many diseases and injuries make a patient immobile, such as broken legs, spinal chord injuries, or Parkinson's. Because of this patients are unable to move around to get medication and water on their own. For bedridden patients you could stack supplies next to the bed, but only up to a point, and Parkinson's patients could be anywhere when they stiffen up.
For this demonstration I'm controlling the robot remotely using the laptop. Later iterations would need autonomous SLAM navigation. It also pitches forward and back quite significantly due to coarse throttle control. By smoothing the throttle this can be prevented, and then turning ability should also be improved.
This version is primarily envisioned for home use by Parkinson's patients. Hospital use is possible, but that is contingent on good autonomy and autonomous charging, otherwise the overhead is too great to be of value.