I've never really got my head around why they do that. OK, they're always in a tearing hurry, but equipment powered from the mains has to be plugged in somehow, does it not (and you would have thought that the mains cable itself should give a sufficient clue)?

Do they treat their own kit at home like that, I wonder? But, there again, perhaps they do - how does Henry the vacuum cleaner react when you give him a yank (but even Henry has his ... er, limits)?

Back to the drawing board then, guys. How about we ask Mr. Dyson to have a go at designing a "SATS machine"? smile

Hint:- get away from the fixation with the "rolling stand" (which is really a throw-back to the traditional IV stand), and go for a squat design, with five castors and a low centre of gravity (a bit like the aforementioned household appliance). If you (the designer, that is) need inspiration, take a look at the humble "kick-bucket" found in operating theatres all over the world (how often do they "fall over"?).

If you don't inspect ... don't expect.