Here's a slightly different approach (and one which I would recommend) ... why not let the medics select their
own kit?

Just as long as the biomeds make sure that their voice is heard regarding the requirements of tech support. Then later on, when disappointment emerges, it can be them (the biomeds) who will be able to say "I told you so"!

Here are a couple of "debating points":-
1) There's probably nothing much wrong with the existing kit anyway.
2) Someone senior will be pushing for a particular manufacturer or new technology.
3) Why should biomeds waste time on (what is often) just going through the motions?
4) The medics "must have" the kit ... so let them do the donkey work!
5) Let the medics carry the can for their own decisions.
6) If something they "didn't want" is "forced" upon them - you'll never hear the last of their complaints (whether real or imagined).
Doing it "my way" ... the biomeds avoid carrying "the blame" for the next ten or fifteen years. The surgeons and the anaesthetists
et al take the Big Bucks, attend all the
junkets and "seminars", bask in the
kudos, and all the rest ... so let them carry the responsibility. After all, it's them that have to use the kit day in, day out.
Meanwhile,
our lot is to keep our heads down, hide in the back corridors and basements, endeavour to provide tech support, and try to
fix the kit when it all goes down the pan later on.