Patent ID: 6118848
Filing Date: 2000-09-12
Classification: A61B,A61N

Abstract:
A stabilizing system comprising:markers, the markers being located in a body, and the markers having a reference set of positions relative to external coordinates, the reference set of positions having a calibrated spatial relationship to a target volume in the body;an imager which images the markers and produces a initial imager output signal which is functionally related to an initial set of positions of the markers relative to the external coordinates at an initial time and produces a subsequent imager output signal which is functionally related to a subsequent set of positions relative to the external coordinates at a subsequent time;a data processor which receives the initial imager output signal, receives the subsequent imager output signal, compares the initial imager output signal with the subsequent imager output signal, and produces a control output signal;an actuator sub-system, the actuator sub-system being connected to the body, and the actuator sub-system being driven by the control output signal to move the body.