Abstract: The present invention concerns an imitation learning method for a multi-axis manipulator (7,7?). This method comprises the steps of capturing, at a set of successive waypoints (10,11) in a teach-in trajectory (4) of a user-operated training tool, spatial data comprising position and orientation of the training tool (3) in a Cartesian space; selecting, from among said set of successive waypoints (10,11), a subset of waypoints (11) starting from a first waypoint (11) of said set of successive waypoints (10,11), wherein for each subsequent waypoint (11) to be selected a difference in position and/or orientation with respect to a last previously selected waypoint (11) exceeds a predetermined threshold; fitting a set trajectory (4?) in said Cartesian space to said selected subset of waypoints (11); and converting said set trajectory into motion commands in a joint space of said multi-axis manipulator (7,7?).

Abstract: A device is provided for positioning a patient with respect to a radiation, the device being a polyarticulated robot including: —at least one linear horizontal displacement rail, —a connecting part capable of carrying out translations with respect to the linear rail and pivoting about an axis of rotation vertical to that linear rail, and —a robotic arm connected to the connecting part, the robotic arm including a wrist with concurrent axes of rotation connected to a patient support.

Abstract: An anti-collision system is provided for moving an object around an environment, the system including a processing unit connected to sensors capable of obtaining the position of the object in the environment in real time, the processing unit being provided with software and hardware for monitoring the object and for implementing: a virtual 3-D model of the environment, a real-time virtual 3-D model of the object moving around the environment, a virtual 3-D model of a virtual shell around the object, and an algorithm for real-time detection of collisions between the virtual shell and the modeled environment, a warning signal and an estimation of the collision being generated in the event of a virtual collision.

Abstract: A device is provided for positioning a patient with respect to a radiation, the device being a polyarticulated robot including: —at least one linear horizontal displacement rail, —a connecting part capable of carrying out translations with respect to the linear rail and pivoting about an axis of rotation vertical to that linear rail, and —a robotic arm connected to the connecting part, the robotic arm including a wrist with concurrent axes of rotation connected to a patient support.