Skull clamping device for fixing and aligning a head of a patient for a medical intervention

A medical imaging system for recording a three-dimensional (3D) volume image of a patient supported on a patient couch, the medical imaging system comprising:

• a skull clamping device for fixing and aligning a head of a patient for a medical intervention, the skull clamping device comprising:
• at least two concentrically alignable ring elements, wherein a first ring element of the at least two concentrically alignable ring elements is mounted rotatably about a first axis, and a second ring element of the at least two concentrically alignable ring elements is mounted rotatably about a second axis within the first ring element, the first ring element being outer relative to the second ring element, the first axis being orthogonal to the second axis;
• at least one motor-driven drive configured to drive a rotation of the first ring element about the first axis, a rotation of the second ring element about the second axis, or the rotation of the first ring element about the first axis and the rotation of the second ring element about the second axis;
• at least two holding elements that are arranged in an innermost ring element of the at least two concentrically alignable ring elements, the at least two holding elements being configured to fix the head of the patient, the innermost ring element being the second ring element or a third ring element of the at least two concentrically alignable ring elements;
• and
• a controller configured for motor-driven actuation of the at least one motor-driven drive.