Sure. To answer your second question first, I agree. I don't think it would be a barrier if there was a mandatory or opt-out registry in place. You wouldn't have any choice. You would have to do the appropriate upload of data.
That's one of the things that are really important: making that process simple with a good database. Uploading the data into it is an easy thing to do.
On your first question about the relationship between provincial and federal mandates, I'm aware of the division in the delivery of care, but I wasn't aware that if.... It seems that if Health Canada is mandated to ensure the safety of devices...if they put in place a mandatory registry, I can't imagine that provinces would balk at that or interfere in any way.