Abstract:
An imaging system includes a conveyor duct including a first wall and an opposing second wall, a gantry coupled to one end of the conveyor duct, an imaging assembly associated with the gantry, and a conveyor assembly coupled to the conveyor duct. The conveyor assembly includes a first rail coupled to the first wall of the conveyor duct and a second rail coupled to the second wall of the conveyor duct, the first rail and the second rail defining a channel therebetween. The imaging system also includes a tray including a base, wherein the conveyor assembly is configured to transport the tray into the gantry, and wherein the base of the tray extends between and below the first rail and the second rail when the conveyor assembly is transporting the tray.
Abstract:
A computed tomography (CT) gantry system is described herein. The CT gantry system includes a frame, a plurality of support wheels rotatably coupled to the frame, and a gantry resting upon the plurality of support wheels. In some embodiments, the gantry includes two gantry rings, and a cross member extending between the two gantry rings. In other embodiments, the gantry includes a first gantry ring, and a second gantry ring spaced apart from the first gantry ring in a direction parallel to an axis of rotation of the gantry. In some embodiments, the plurality of support wheels includes a plurality of front support wheels and a plurality of back support wheels. In some embodiments, the gantry includes a front gantry ring resting upon the front support wheels, a back gantry ring resting upon the back support wheels, and a cross member coupled between the front and back gantry rings.
Abstract:
A helical CT scanner for imaging an object is provided. The helical CT scanner includes an X-ray emitter configured to emit X-ray beams towards the object, and a detector array positioned opposite the X-ray emitter, the detector array including a plurality of discrete detector blocks arranged in a two-dimensional grid, each detector block including a plurality of pixels, wherein at least one first gap is defined between adjacent detector blocks in a first direction, and wherein at least one second gap is defined between adjacent detector blocks in a second direction. The helical CT scanner further includes a processing device communicatively coupled to said detector array, said processing device configured to reconstruct an image of the object based on image data acquired using said detector array.
Abstract:
An imaging system includes a conveyor duct including a first wall and an opposing second wall, a gantry coupled to one end of the conveyor duct, an imaging assembly associated with the gantry, and a conveyor assembly coupled to the conveyor duct. The conveyor assembly includes a first rail coupled to the first wall of the conveyor duct and a second rail coupled to the second wall of the conveyor duct, the first rail and the second rail defining a channel therebetween. The imaging system also includes a tray including a base, wherein the conveyor assembly is configured to transport the tray into the gantry, and wherein the base of the tray extends between and below the first rail and the second rail when the conveyor assembly is transporting the tray.
Abstract:
A gantry system for use with a computed tomography (CT) imaging system is provided. The gantry system includes a gantry assembly configured to rotate about a rotational axis to collect imaging data from an object. The gantry assembly includes a support rail. A radially inner surface of the support rail includes a canted first portion and an oppositely canted second portion. The gantry system also includes a plurality of roller assemblies rotatably supporting the gantry assembly. Each of the plurality of roller assemblies comprises a first roller sleeve configured to engage the first portion and a second roller sleeve configured to engage the second portion.
Abstract:
A gantry rail for a gantry computed tomography (CT) system includes a secondary side of a rotary transformer and an annular body having an annular rolling surface and an annular slip ring surface. The annular body is aligned orthogonal to a longitudinal axis of the gantry CT system. The annular rolling surface has a normal vector that extends radially outward and orthogonal to the longitudinal axis. The annular slip ring surface defines a plane orthogonal to the longitudinal axis, and includes a slot disposed in the slip ring surface. The slot is configured to engage the secondary side of the rotary transformer.
Abstract:
A gantry system for use with a computed tomography imaging system is provided. The gantry system includes a frame, a support rail coupled to the frame, and a plurality of rollers. The frame defines an annular opening, and is configured to rotate about a rotational axis to collect imaging data from an object positioned within the opening. The support rail includes a canted sidewall having a radial inner surface and a radial outer surface. The plurality of rollers rotatably supports the support rail to enable rotation of the frame about the rotational axis. The plurality of rollers includes a first roller that engages the radial outer surface of the sidewall and a second roller that engages the radial inner surface of the sidewall.
Abstract:
A helical CT scanner for imaging an object is provided. The helical CT scanner includes an X-ray emitter configured to emit X-ray beams towards the object, and a detector array positioned opposite the X-ray emitter, the detector array including a plurality of discrete detector blocks arranged in a two-dimensional grid, each detector block including a plurality of pixels, wherein at least one first gap is defined between adjacent detector blocks in a first direction, and wherein at least one second gap is defined between adjacent detector blocks in a second direction. The helical CT scanner further includes a processing device communicatively coupled to said detector array, said processing device configured to reconstruct an image of the object based on image data acquired using said detector array.
Abstract:
A gantry rail for a gantry computed tomography (CT) system includes a secondary side of a rotary transformer and an annular body having an annular rolling surface and an annular slip ring surface. The annular body is aligned orthogonal to a longitudinal axis of the gantry CT system. The annular rolling surface has a normal vector that extends radially outward and orthogonal to the longitudinal axis. The annular slip ring surface defines a plane orthogonal to the longitudinal axis, and includes a slot disposed in the slip ring surface. The slot is configured to engage the secondary side of the rotary transformer.
Abstract:
A line-frequency rotary transformer is provided, including a primary core and a secondary core. The primary core is magnetically couplable to the secondary core. The primary core includes a first plurality of E-core steel laminates arranged in a first ring couplable to a stator. The primary core includes a primary winding disposed within the first ring and configured to transmit line-frequency AC power. The secondary core includes a second plurality of E-core steel laminates arranged in a second ring couplable to a gantry. The gantry is rotatably couplable to the stator. The secondary core includes a secondary winding disposed within the second ring and is configured to receive a line-frequency AC power induced in the secondary winding through the primary core and the secondary core by the primary winding.