A judge ruled Thursday that the Elmhurst woman who stabbed her 9-month-old grandson in September 2010 may be held in a mental health facility for a total of 30 years, or until her condition improves, The Daily Herald is reporting.

Sandra Clanton, now 41, cut the infant's face with a knife and slammed his head into a kitchen sink on Sept. 11, 2010. The boy suffered a bruise on his head and a cut under his eye but escaped more serious injury when Clanton's fiancee stepped in to fend her off.

Clanton originally was held on $2 million bond, but was found not guilty by reason of insanity in July of last year.

Initial evaluations determined she suffered from paranoid schizophrenia.  Clanton, who claimed at one point she believed her grandson was the antichrist, has been held in a mental health facility since last year and will receive credit for her time there.

DuPage County Judge Daniel Guerin's determination of a 30-year commitment is equal to the maximum sentence she could have received if convicted of attempted murder. She will return to court every 60 days for a condition report, according to the Daily Herald.