The NHS trust at the centre of negligence claims has issued an apology to the family of a woman who died following an operation.
Phyllis Harvey, then 73, died at the Sutton hospital after undergoing surgery at King's Mill hospital on her bowels to repair damage from a tumour, reports the Mansfield Chad.
Her husband Peter had always claimed that Mrs Harvey's death was caused by "medical negligence and lack in the duty of care" at King's Mill, which is owned by the Sherwood Forest NHS Foundation Trust.
The trust has now issued an apology to the widower.
"Phyllis' initial operation was a success and I am grateful to the hospital for that, but her aftercare was poor and ultimately led to her death," Mr Harvey stated.
He added that he is to campaign to the government for a health regulator to be set up under which hospital bosses could be prosecuted for clinical negligence.
Sherwood Forest Hospitals became a foundation trust in 2007 and runs King's Mill and Newark hospitals, as well as providing services at Mansfield Community Hospital.