Going back to John's original question about excess manuals etc, with the introduction of the Medical Device Regulations that come into force in May 2020, for any device that is CE marked. In Annex I the section on General Safety and Performance requirements there is a section t hat talks about device labelling. This Chapter III of the GSPR.
REQUIREMENTS REGARDING THE INFORMATION SUPPLIED WITH THE DEVICE
In section 23.1 (e) it states the following
Where multiple devices are supplied to a single user and/or location, a single copy of the instructions for use may be provided if so agreed by the purchaser who in any case may request further copies to be provided free of charge.
So you as purchaser can agree with the manufacturer to supply single copies of the IFU at the time of purchase.
Just as a general note the introduction of the MDR will bring lots of changes, and for those pointing out the UK is leaving the EU, if a manufacture wants to supply a CE marked device they will still need to comply and it is very likely that a version of these will be applicable in the UK
Jon