Patent ID: 6694164
Filing Date: 2004-02-17
Classification: A61B

Abstract:
A system far projecting onto an anatomical body markings made on a data-base body of pre-acquired images of the anatomical body, said system comprising:a spatial determinator for determining spatial positional information of the anatomical body by tracking the anatomical body in a frame of reference and generating first positional signals indicative of the spatial positional information of the anatomical body in the frame of reference; a mapping unit for receiving first positional signals indicative of the spatial positional information of the anatomical body in the frame of reference, mapping the markings made on the data-base body of pre-acquired images onto corresponding locations on the anatomical body and generating a mapping signal indicative of the corresponding locations in the frame of reference of the markings on the data-base body; and an image projecting device for receiving the mapping signal and projecting an image of the markings made on the data-base body onto the corresponding locations of the anatomical body, said image projecting device projecting the image at an angle within about 30 degrees of the normal of a surface of a portion of the corresponding locations of the anatomical body.