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Imaging system rotating gantry and subject support motion control

A technology of rotating gantry and imaging system, applied in patient positioning for diagnosis, instruments for radiological diagnosis, medical science, etc., can solve the problems of wasting space and increasing the cost of the overall system 100

Inactive Publication Date: 2019-08-13
KONINKLJIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, each of the dedicated motion controllers 132, 116, and 118 and the dedicated hardwired channel 142 add to the cost of the overall system 100 and waste space

Method used

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  • Imaging system rotating gantry and subject support motion control
  • Imaging system rotating gantry and subject support motion control
  • Imaging system rotating gantry and subject support motion control

Examples

Experimental program
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Embodiment Construction

[0017] first reference image 3 , schematically illustrates an imaging system 300, such as a computed tomography (CT) scanner. The imaging system 300 includes a fixed frame 302 and a rotary frame (rotor) 304 rotatably supported by the fixed frame 302 via balls, air, etc., bearings, and the like. The rotating gantry 304 rotates about an examination region 306 about a longitudinal or z-axis 308 . The rotor motor 310 turns the rotating gantry 304 either directly or through another component (eg, a belt, chain, gear, etc.). The rotor drive 312 controls the rotor motor 310 based on the rotating gantry position feedback. Rotor encoder 314 located on rotating gantry 302 determines the angular rotational position of rotating gantry 304 . The rotor encoder 314 communicates the position information from the rotating frame 304 to the stationary frame 302 via a slip ring or the like.

[0018] Radiation source 316 , such as an X-ray tube, is supported by and rotates with rotating gantry...

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PUM

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Abstract

An imaging system (300) includes a rotating gantry (302) configured to rotate about an examination region (306) about a z-axis (308), a subject support (322), including a tabletop (324) configured tohorizontally translate along the z-axis into and out of the examination region, a communications network (342) shared by the rotating gantry and the subject support, and a master motion controller (344) configured to control both rotational motion of the rotating gantry and translational motion of the tabletop over the communications network.

Description

[0001] This application is a divisional application of the patent application 201280046633.5 with the filing date of September 25, 2012, and the title of the invention is "Motion Control of the Rotating Rack of the Imaging System and the Subject Support". technical field [0002] The following relates generally to imaging systems, and more specifically to motion control of the rotating gantry and subject support of said imaging systems by a central master motion controller, and is performed with particular reference to computed tomography (CT) description; however, the following can also be used for motion control of the rotating gantry and subject support of other imaging systems. Background technique [0003] 1 and 2 illustrate an example computed tomography (CT) scanner 100 . FIG. 1 shows a front view of the scanner 100 , and FIG. 2 shows a side view of the scanner 100 . CT scanner 100 includes a rotating gantry 102 rotatably mounted to a fixed gantry 104 . The rotating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/04A61B6/03A61B6/00
CPCA61B6/035A61B6/4476A61B6/547A61B6/56A61B6/0487
Inventor S·董
Owner KONINKLJIJKE PHILIPS NV