The present invention relates to a pathology treatment apparatus comprising: an ultrasound generator device (1), a remote control unit (2) for delivering electricity to the device (1) during at least an activation cycle and determining and controlling the operating parameters thereof, each activation cycle (50) being preceded by a standby cycle, means (31, 32) of electrical connection between the device (1) and the control unit (2), notable in that the control unit (2) is programmed to detect a fault with the electrical connection between the device (1) and the said control unit (2) during at least a standby cycle.