The prototype of a portable artificial lung that aims to give patients greater mobility has gone on show in London.
Researchers said the device, being developed at Swansea University, could make a big difference to people with conditions such as cystic fibrosis.
They said it was unique as it mimics a human lung’s behaviour, and also means patients could move around more.
The research was started by Professor Bill Johns, after his eldest son Graham died from cystic fibrosis aged 32.
Prof Johns is the managing director of Haemair Ltd, which is developing the device in conjunction with university researchers in Swansea.