US 10,888,286 B2
CBCT imaging system with curved detector and curved grid
Xiaohui Wang, Pittsford, NY (US); David H. Foos, Webster, NY (US); Timothy J. Wojcik, Rochester, NY (US); and Craig F. Hofmann, Fairport, NY (US)
Assigned to Carestream Health, Inc., Rochester, NY (US)
Filed by Carestream Health, Inc., Rochester, NY (US)
Filed on May 12, 2017, as Appl. No. 15/593,393.
Claims priority of provisional application 62/474,740, filed on Mar. 22, 2017.
Prior Publication US 2018/0271459 A1, Sep. 27, 2018
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 6/00 (2006.01); A61B 6/03 (2006.01); A61B 6/04 (2006.01); A61B 6/06 (2006.01)
CPC A61B 6/4405 (2013.01) [A61B 6/032 (2013.01); A61B 6/0407 (2013.01); A61B 6/0421 (2013.01); A61B 6/4007 (2013.01); A61B 6/4291 (2013.01); A61B 6/4458 (2013.01); A61B 6/501 (2013.01); A61B 6/06 (2013.01); A61B 6/4085 (2013.01); A61B 6/467 (2013.01)] 18 Claims
OG exemplary drawing
1. A mobile CBCT imaging system comprising:
a wheeled mobile base having an input device on one side thereof to receive operator instructions to operate the mobile CBCT imaging system, the input device facing in a first direction;
a movable column connected to the mobile base, the column being movable relative to the mobile base;
a movable imaging ring connected to the movable column, the imaging ring being movable relative to the movable column, the imaging ring surrounding an imaging bore configured to receive an object to be radiographically imaged, the imaging ring comprising:
a closed end on one side of the imaging bore;
an open end on another side of the imaging bore opposite the closed end, the open end configured to receive the object into the imaging bore to be radiographically imaged;
a source to emit radiographic energy;
a curved detector to capture a radiographic image of the object; and
a curved grid adjacent the curved detector and positioned between the detector and the source; and
a head support configured to lie on a surface of a bed and to elevate and support a head of a patient lying on the surface of the bed, the head of the patient being supported above the surface of the bed such that a portion of the imaging ring is permitted to travel between the patient's head and the surface of the bed, thereby allowing the imaging ring to surround the head of the patient,
wherein the source and the detector are fixed in diametrically opposed positions in relation to an imaging axis defined by the imaging ring, the source and the detector are configured to simultaneously revolve about the imaging axis while generating radiographic images of the object at a plurality of different imaging angles, the detector comprises an array of photosensors facing the imaging axis, the imaging axis is perpendicular to the closed end of the imaging bore, and wherein the array of photosensors are disposed along a curved surface of the detector.