There's always a first for everything. New equipment is being developed constantly. But this generally being a commercial enterprise, usually the investment of time and money is directed to the most common (and therefore most profitable) urgent health problems. Babies requiring dialysis are fairly rare, so they are bottom of the pile. It is left to enterprising medical geniuses like this doctor to take the initiative. I think that you and chrisb2e9 don't realise how far and wide resources in the NHS have to be spread to save lives on a daily basis. Even if these machines already existed, they would cost --not because they are built by "money grabbing companies" but because they are hideously complex machines that have to be hand-built by experts to a high standard, and to last. You can buy a machine that will save ten lives a week for £10,000,--, or you can spend the same on a device that will save a baby once every three to six months. What would you buy? I thought so. As long as the parents give informed consent, the doctor would be in the clear. Baby is dying anyway, remember? You and chrisb2e9 also don't seem to realise that medical staff make ethical and professional decisions on the knife-edge of life, death, law and taxes (it all costs money) on a daily basis. We only second-guess them and start moaning if we don't like the outcome. I'm sure the baby's parents however, are appreciative.