Abstract: A system to localize a micro-device inside a target body part, including: a micro-device remotely steered and controlled from outside the target body part, a control unit including a memory for storing one ultrasound image of the target body part, one probe being brought in contact with a securing body part of the patient, and at least one tracker connected to the micro-device. The probe and the tracker communicate with ultrasounds, the control unit being thus able to localize, in real time, the tracker within an internal referential defined with regards to the probe, and the control unit displays, on a screen, the ultrasound image and displays, in real time, the localization of the micro-device on the ultrasound image.

Abstract: A device tracking system for monitoring a target body structure and localizing a device inside the target body structure. The device tracking system includes: a control unit, a device having one steering element to be handled outside the target body structure and one steerable element to be introduced inside the target body structure, one probe to be removably secured to the patient, and one tracker to be secured to the steerable element. The control unit stores one ultrasound image of the target body structure. The probe and the tracker communicate, and the control unit is able to localize, in real time, the steerable element. The control unit displays, the stored ultrasound image and displays, in real time, the localisation of the at steerable element on the at least one ultrasound image.