I could see the use of this technology in an unmanned drone to bring equipment to a scene in place of the EMTs /. Paramedics having to carry it up a hill or over rough terrain. This would allow them to reach the patient sooner with the plus of quickly receiving additional needed equipment if required. A good way to get any extraneous equipment back down the mountain. Just a thought.
As an aside:
One bright guy suggested a stretcher with electric motors driving reversible fans much like bow and stern thrusters on ships to stabilize the stretcher on a hoist cable. You would only need a battery large enough to power it for perhaps 10 minutes max. ( we have all seen videos of wildly spinning stretchers.). The snag at the time was how they would be controlled a problem which todays computer technology may have an easy solution for.
It was an interesting discussion point during a boring night shift as various configurations were debated and sketched out. We decided upon 2 tubes 4-6 inch in diameter about 2 feet long each containing an entire system which could be snapped on the front and back of any stretcher with a small controller snapped on the side.
This was in the early 90s before computer tech had developed to today's level of sophistication. Perhaps today it could be totally automatic using a basic “heading hold” program.
It was all soon forgotten and nothing was sent up the food chain as the “High Priced Help” were, at the time, the type who actively discouraged suggestions from the coal face. “If it was a good idea WE would have thought of it already!”