PROBLEM TO BE SOLVED: To provide an IABP driving device that includes a monitor unit suitable for switching an installation state for use.SOLUTION: A monitor unit (50) of an IABP driving device includes: a monitor housing part that includes a control unit (52) which is stored in a housing and controls pressure generation means, a display unit (54) which is arranged on a front surface of the housing and displays information about inflation and deflation timing of the balloon through the control by the control unit, and a monitor connection part (58) which is arranged on a back surface of the housing and is connected to a monitor installation part a pilot lamp (55) that is provided on an upper side surface of the housing, which is located at a top part of the monitor housing part out of the side surfaces of the housing connecting the front surface of the housing and the back surface of the housing, and that changes its lighting state according to a drive status of a balloon catheter through the control by the control unit and an impact absorbing part (57) that is arranged in a belt-like form along the side surfaces of the housing including the upper side surface of the housing, so as to surround the monitor housing part and the pilot lamp in a circumferential direction.
