Patent ID: 7774044

Claim:
A method for augmented reality navigation during a medical intervention, said method comprising the steps of: providing stereoscopic head mounted display, said display including a pair of stereo viewing cameras, at least one tracking camera, and a stereoscopic guidance display; providing a plurality of markers on a frame attached to a table; providing a medical instrument for performing said medical intervention, and providing a plurality of markers on the instrument; during a medical intervention on a patient positioned on said table, determining a rigid body transformation between the tracking camera and the frame markers, and determining said patient's body pose from said rigid body transformation; determining the pose of said medical instrument with respect to the table from the patient's body pose and said instrument markers; displaying in the stereoscopic guidance display a visual representation of said patient, said instrument, and a path for guiding said instrument to perform said medical intervention, wherein the visual representation of said patient and said instrument is generated based on a signal received from said viewing cameras, and wherein the visual representation of said patient is overlaid with a medical image of a target of said intervention; and color-coding the visual representation of the medical instrument to indicate penetration of said medical instrument toward said target in real-time to show the time evolution of the medical instrument's trajectory.