In a statement issued through his Marussia team, they expressed appreciation for messages of support from around the world and said the 25-year-old’s crash at Suzuka on Sunday had left him with a “diffuse axonal injury”.
Two eminent neurosurgeons – FIA medical commission president Gerard Saillant and Italian professor Alessandro Frati – were also at the Mie General Medical Center in Yokkaichi after flying from Europe at Ferrari’s request.
“The medical professionals at the hospital are providing the very best treatment and care and we are grateful for everything they have done for Jules since his accident,” the family said.
“The hospital will continue to monitor and treat Jules and further medical updates will be provided when appropriate.”
Bianchi aquaplaned off the wet track at speed with his car hitting the rear of a recovery tractor that had been deployed to remove Adrian Sutil’s crashed Sauber.
A Suzuka track spokesman said the crash was down to bad luck rather than poor judgement by race officials.
“Officials raised ‘double yellow flags’ after the accident by Sutil, which means drivers had to slow down to the speed that they can immediately stop, but unfortunately Bianchi’s car aquaplaned right at the time and ran into the accident site, which was bad luck,” said circuit spokesman Masamichi Miyazaki.
“Admittedly, rain was coming and the road was wet, but not heavy enough to halt the race, and I believe the race officials made the same judgement.”
The governing International Automobile Federation (FIA) said president Jean Todt had asked race director Charlie Whiting to carry out a detailed report into the precise circumstances of the accident.