The thing is, the notion that it needs to be protected assumes that no good can come from working with outside parties. I know, for instance, that the Dutch co-operative group Buurtzog are helping out with a trial in London around community health. Likewise, places like the Mayo Clinic or the Massachusetts General Hospital are both incredibly highly regarded and the NHS is actively looking at places like that and leading institutions from around the world for help on improvement. Indeed the whole Boston area is arguably the world hotspot for biomedicine.
For instance, researchers at
Harvard have made some big strides with robotic surgeons, which opens up the prospect of a surgeon operating on a patient from anywhere in the world. If the best in the world is in Timbuktu, would you not want them working on your loved one because they're not local?
I've no idea how things will pan out to be honest, but we shouldn't be afraid of what those outside of Britain can offer to the NHS, and there's a reality that healthcare has always been a partnership between public and private, and that's only going to become more so as we start using machine learning to make sense of the huge amount of data around our health (both genomic and behavioural). Should the NHS not work with the likes of Google and IBM in this area because they're a) private companies, and b) American?
I've spoken to a number of the AHSNs, and know that they're looking anywhere and everywhere for ways to improve the NHS. I'm not convinced that they're doing a good job of it, but fully support the ethos.