Yes but all I'm saying is that the definition of enclosure could also apply to the bed frame. I suppose it doesn't really matter because the mains protection afforded by a "B applied part" applies in either case. I do actually think a medical safety test is essential for mains B, BF or CF equipment.
We are talking about definitions when in practice the tests that will be applied are the same aren't they? Irrespective of what we call the applied part or enclosure? Is this the case?