JT McNamara remains in a stable condition following the serious neck injury he sustained at Cheltenham a week ago.
An update revealed the leading amateur rider has not suffered a brain injury, but his vertebral damage is serious.
The 37-year-old was injured in a first-fence fall from Galaxy Rock in the Fulke Walwyn Kim Muir Challenge Cup and airlifted to hospital after being treated by the on-course medics.
Conscious following the fall according to officials at the track, he was put in an induced coma before his transfer to Frenchay Hospital in Bristol.
McNamara underwent surgery on his fractured C3 and C4 vertebrae last Friday.
A statement issued jointly by Irish Turf Club senior medical officer Dr Adrian McGoldrick and Lisa Hancock, chief executive of the Injured Jockeys Fund, on behalf of the McNamara family, read: "JT McNamara remains in the Intensive Care Unit at Frenchay Hospital, Bristol.
"He is in a stable condition and his level of sedation is being reduced.
"Whilst his vertebral damage remains serious, he has not suffered a brain injury.
"His wife Caroline and family very much appreciate all the messages, cards and letters that have been received.
"There will be no further update this week."