A method and apparatus are described for guiding a penetrating tool to a predetermined point of interest within a three-dimensional object, such as a brain tumor within a human skull. A plurality of signal-transmitting markers disposed about the periphery of the object are used to determine the precise...http://www.google.fr/patents/US5957934?utm_source=gb-gplus-shareBrevet US5957934 - Method and apparatus for guiding a penetrating tool into a three-dimensional object
Method and apparatus for guiding a penetrating tool into a three-dimensional ...
