Because it hasn't happened yet doesn't mean it can't.
People are saved by emergency vehicles w proper equipment getting them to hospital.
Their power source is entirely irrelevant.
You're really running out of arguments, TimG, and the only ones you have left are full of holes. Lol
And those electric helicopters that "don't exist" might not be that far away. The big boys of that industry are already developing them.
Several aircraft manufactures are developing electric urban air taxis, many of which use tilting, ducted fans for lift and propulsion.
Airbus Helicopters, for instance, is developing its CityAirbus electric-powered urban air taxi, Boeing is developing an electric "autonomous passenger air vehicle" and Bell Helicopter is working on a hybrid-electric design as part of its Nexus programme.
Several years ago, Sikorsky developed an electric-powered version of a Schweizer S-300C light helicopter, part of a project called Firefly.
https://www.flightglobal.com/news/articles/hai-sikorsky-launches-drive-to-develop-urban-air-ta-456316/