X-ray positioner for multi-axis profiling

Claim 1

A diagnostic x-ray machine for making examinations of a human body comprising: an L arm means for rotating on a first pivot about a first machine axis intersecting an isocenter, said L arm including a second pivot defining a second machine axis intersecting the isocenter and perpendicular to the first machine axis; an offset arm means for rotating on the second pivot about the second machine axis, the offset arm including an arcuately curved guide collar; a C arm means arcuately curved and carried by the curved guide collar for movement therealong, said C arm having first and second opposing ends, said ends revolving about a third machine axis during movement of the C arm relative to the curved guide collar, said third machine axis intersecting the isocenter; an x-ray source mounted on the first end of the C arm for directing radiation inward with respect to the third machine axis, along an image axis intersecting the isocenter; and an image receiver means mounted on the second end of the C arm for receiving radiation from the x-ray source directed along the image axis.