X-ray examination apparatus

Abstract

An x-ray examination apparatus has a stand composed of at least one upright column, a holder for a curved carrier rotatable around a horizontal axis and connected to the column, an x-ray tube and a receptor being secured to the holder, a fastening means for the stand, and an arm that connects the stand to the fastening means. One end of the arm is rotatable around an axis at the fastening means. The apparatus also includes an examination table that is displaceable at least along a center line. In order to provide an apparatus having a stand that is comparatively simple in structure and that has an extraordinarily large movement range and that can displace the center line of the x-ray tube and receptor between two points on the center line of the examination table that lie comparatively far apart without a table displacement, the fastening means is placed such that the axis thereof does not coincide with the center line of the examination table, and the other end of the arm is rotatably connected to a vertical axis arranged at the column. A mechanism given a rotation of the arm around the axis of the fastening means, turns the stand around the axis at the column such that the center line of the x-ray tube and receptor intersects the center line of the examination table in at least two angular positions of the arm, whereby the stand--as viewed from above--is in axial alignment with the center line of the examination table in the first angular position of the arm and the stand describes an angle with this center line in the second angular position of the arm.

Dependencies are inferred from the claim text.