A method of measuring the size of an area (22) within a body, including bringing at least one position sensor (28) to each of a plurality of points in the area, determining position coordinates of the plurality of points, using the sensor (28) and calculating distances between the plurality of points....http://www.google.es/patents/US20050215887?utm_source=gb-gplus-sharePatente US20050215887 - Medical system using implantable sensor in bone for determining position coordinates
Medical system using implantable sensor in bone for determining position ...
