Computed tomography method and apparatus

Patent · Tue Feb 17 04:00:00 EST 1987

OSTI ID:6940252

Palermo, A; Zupancic, A Z

This patent describes a CT scanner apparatus comprising: (a) a gantry arrangement; (b) a rotatable assembly mounted on the gantry and defining a through patient aperture, the assembly including an x-radiation source; (c) a slip ring assembly around the aperture and having certain portions connected to the gantry and other portions forming a part of the rotating assembly for rotation relative to the certain portions, the slip ring assembly including at least one slip ring; (d) the other portions being electrically connected to the x-radiation source; (e) input means connected to the certain portions for receiving a high voltage electrical input and for transferring the electrical input to the source via the slip ring assembly; (f) drive means for rotating the rotatable assembly relative to the gantry; (g) the slip ring assembly being configured to provide a cavity for maintaining an insulating fluid in contact with substantially the entire slip ring as the slip ring portions rotate relatively; and, (h) further brushes and slip rings for low voltage connections to the rotatable assembly, the further brushes and slip rings being external of the cavity for insulating fluid and the further slip rings are concentrically disposed with respect to one another.

• Assignee: Picker Corp., Cleveland, OH
• Patent Number(s): US 4644573
• OSTI ID: 6940252
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
APERTURES
COMPUTERIZED TOMOGRAPHY
DESIGN
DIAGNOSTIC TECHNIQUES
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATORS
EQUIPMENT
FLUIDS
IMAGE SCANNERS
MOTION
OPENINGS
PATIENTS
RADIATION SOURCES
RINGS
ROTATION
TOMOGRAPHY
WORKING FLUIDS
X-RAY EQUIPMENT
X-RAY SOURCES