Drone-Based Emergency Medical Rescue System Presented

The original article is here: http://www.medgadget.com/2016/12/drone-based-emergency-medical-rescue-system-presented.html

A couple of drones that appear in the video are looking more like prototypes. It would be interesting if you posted your ideas on how to design a drone for emergency operations. Some obvious (or maybe not that obvious) things to take into account:

1. Redundancy of motors/props: octacopters are better than hexacopters, hexacopters are better than quadcopters. Quadcopters have no redundancy of the motors or props.
2. Parachute failsafe system. One of the drones seems to have a parachute dome on top of it, so this might have been taken into account already.
3. Flight control redundancy, such as Gemini by Zerotech.
4. All standard failsafe features, such as out of range and battery failsafe.

Post your comments below.