Thanks Geoff for the leads and have checked out their websites, including yours, which by the way, was quite captivating. I am slightly hesitant here, to go further and the reason being that the information that I am seeking may well be the "bread and butter" for these companies and hence they may not wish to part with it gratis
It would then seem to me at first attempt, that the info is not readily available in a compiled form and individuals / companies involved in medical equipment planning have built up this data over a period of time to suit their professional and commercial requirements.
