'Bound' in the Bible

because Jesus was in the process of ordering the unclean spirit to come out of the man. On many occasions the unclean spirit had seized the man, and though he was kept under guard and bound with chains and shackles, he would break the chains and be driven by the demon into deserted places.

Shouldn't this woman, a descendant of Abraham whom Satan has kept bound for eighteen long years, be set free from this bondage on the Sabbath day?"