Anything related to healthcare has no business being any closer to the whims of “the market” than the public roads.
It would be unheard of for a government to stop maintaining a public road because whomever was supplying some ingredient of the asphalt said that particular mix is “to old and the new mix is not compatible with the roads created using the old mix”.
They don’t want to do it anymore, fine, then provide whatever is needed for someone else to maintain it for the cost of the materials to print/email/upload to GitHub the technical documents. It should not be legal to get someone hooked on your life altering medical device then rug pull them like this.
Good luck with that. If the success of the iPhone has taught me anything it is that the average person loves them some incompatible with anything but itself vertical integration.