This was developed at the University of Nottingham, a public research university.
From the article:
The device was developed by the university and its spin-out company Neurotherapuetics Ltd, which secured £1m in additional funding to commercialise the device.
Isn't it always us tax payers footing the bill for development, then again to buy it? Ridiculous. If a university develops technology with government funding, its findings ought to be available to the public and its products sold at cost.