Philips must have a license clause, just like the Windows license reads: The manufacturer or installer, and Microsoft, exclude all implied warranties and conditions, including those of merchantability, fitness for a particular purpose, and non-infringement.
I accept clauses like that from FFS because I can change the software myself for it to become fit for a particular purpose ;-) ... If Philips do not update the software on their medical equipment, then I think hospitals around the world must contact the press ... and the media must do their part. This is, of course, unacceptable.
I would also advise hospitals avoid embedded systems, or demand FFS so they can update as they see fit, worst case, hire a bloke to update the driver for the newest kernel.