Patent ID: 6032067
Filing Date: 2000-02-29
Classification: A61M,A61N

Abstract:
A system for delivering radiation to an intracorporeal target site, comprising:a controllable radiation source for generating a radiation beam for delivery to an intracorporeal target site which exhibits rapid periodic physiological movement;a control unit connected to the radiation source to control at least movement of the beam dependent on a control signal; anda locating system comprising an extracorporeal non-ionizing radiation transmitter or receiver; a reference element comprising a complementary receiver or transmitter positionable at an intracorporeal site having a known spatial relationship to the target site and which also exhibits said rapid physiological movement; and a signal processor for identifying when a signal transmitted by the radiation transmitter and received by the complementary radiation receiver is present, the presence of said signal being sufficient in said signal processor to locate the intracorporeal position of the reference element, and said signal processor providing an output signal representative of the position of the reference element for use as the control signal.