Has anybody got these monitors (N560 Nellcor Pulse Oximeter) in there hospital? They are quite new so I don't know who how many are out there. I have spocken to an EBME engineer who work in a hospital who have N550. She seid that the front panel comes of very easily if knocked about, which will happen in any hospital. Nellcor have asured us that this problem has been rectified with the N560. Any comments?