The patent's assignee for patent number 8509384 is
News editors obtained the following quote from the background information supplied by the inventors: "For diagnostic examination purposes and for interventional procedures, for example in cardiology, radiology and neurosurgery, interventional X-ray systems are used for imaging whose typical major features can be, for example, a robot-controlled C-arm on which an X-ray tube and a X-ray detector are mounted, a patient examination table, a high-voltage generator for generating the tube voltage, a system control unit, and an imaging system including at least one monitor.
"By means of the articulated robot 1, known from U.S. Pat. No. 7,500,784 B2 for example, which preferably has six axes of rotation and consequently six degrees of freedom, the C-arm 2 can be moved arbitrarily in three dimensions, for example by its being rotated about a center of rotation between the X-ray emitter 3 and the X-ray detector 4. The inventive X-ray system 1 to 4 can be rotated in particular about centers of rotation and axes of rotation in the C-arm plane of the X-ray image detector 4, preferably about the axes of rotation intersecting the center point of the X-ray image detector 4 and the center point of the X-ray image detector 4.
"The known articulated robot 1 has a base frame which is permanently installed on a floor, for example. Secured thereto is a turntable which is rotatable about a first axis of rotation. Attached to the turntable so as to be capable of pivoting about a second axis of rotation is a robotic floating link to which a robotic arm is fixed so as to be rotatable about a third axis of rotation. A robotic hand is attached to the end of the robotic arm so as to be rotatable about a fourth axis of rotation. The robotic hand has a securing element for the C-arm 2 which can be pivoted about a fifth axis of rotation and rotated about a sixth axis of rotation running perpendicular thereto.
"The implementation of the X-ray diagnostic apparatus is not dependent on the industrial robot. Conventional C-arm devices can also be used. It is also possible to use bi-plane systems which consist, for example, of two C-arm X-ray machines as shown in FIG. 1.
"The X-ray image detector 4 can be a flat semiconductor detector, rectangular or square in shape, which is preferably produced from amorphous silicon (a-Si). However, integrating and possibly counting CMOS detectors can also be used.
"A patient 6 to be examined is positioned in the beam path of the X-ray emitter 3 on a patient examination table 5 as the examination object for the purpose of recording the heart, for example. Connected to the X-ray diagnostic apparatus is a system control unit 7 having an image system 8 which receives and processes the image signals of the X-ray image detector 4 (operator control elements, for example, are not shown). The X-ray images can then be studied on a monitor 9.
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