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 signal tracking system including: one fixation element to be secured to a rigid body part of the patient surrounding a target body part, the fixation element further including a mapping element, one tracker element to be secured to the fixation element to track, in real time, the internal tracker, and a control unit including a memory to store an internal referential and one image displaying the target body part and one fixation element. The control unit is designed to define, inside the internal referential, at least one 3D frame position attached to the at least one fixation element, and to precisely locate each point of the target body part, the control unit is further designed to precisely localize, in real time, the internal tracker inside the target body part.