It's good to hear you're ok. Although I think it's never too good to visit a hospital

Do I see it right: one of the shackles is really thin and easy to break isn't it?
Did you have good look of it? It seems really easily shimmable

. Did they have a code number on them at least?
I don't want to give out ideas, but you should even find the tools to shim it on the trolley

... lol.
Anyway still better than nothing, but the system here is that they keep the emergency trolleys at the nurse's desks where it is under constant supervision. I think that's better than locks are. Still locks and supervision together is probably the best, they should have them here too.