This is the 1983rd most frequent German word.
geholfen
"Geholfen" means "helped" in English.
Here 'geholfen' is used as the past participle of 'helfen', indicating completed action of providing help by the doctor.
Die Ärztin hat ihm geholfen.
The doctor helped him.
In this sentence, 'geholfen' emphasizes the action of help that did not occur, reflecting a hypothetical situation previously stated.
Er hätte mir nicht helfen können, also hat er nicht geholfen.
He wouldn't have been able to help me, so he didn't help.
'Geholfen' here reflects the act of providing help, specifically to those in need, accomplished via the means described.