07490982 is referenced by 20 patents and cites 104 patents.

A robotically controlled five degree-of-freedom x-ray gantry positioning apparatus, which is connected to a mobile cart, ceiling, floor, wall, or patient table, is being disclosed. The positioning system can be attached to a cantilevered o-shaped or c-shaped gantry. The positioning system can precisely translate the attached gantry in the three orthogonal axes X-Y-Z and orient the gantry about the X-axis and Y-axis while keeping the center of the gantry fixed, (see FIG. 1). The positioning apparatus provides both iso-centric and non iso-centric “Tilt” and “Wag” rotations of the gantry around the X-axis and Y-axis respectively. The iso-centric “Wag” rotation is a multi-axis combination of two translations and one rotation. Additionally, a field of view larger than that provided by the detector is provided in pure AP (anterior/posterior) and lateral detector positions through additional combinations of multi-axis coordinated motion. Each axis can be manually controlled or motorized with position feedback to allow storage of gantry transformations. Motorized axes enable the gantry to quickly and accurately return to preset gantry positions and orientations. A system and method for enlarging the field of view of the object being imaged combines a rotation of the x-ray source and detector with a multi-axis translation of the gantry.

Title
Gantry positioning apparatus for x-ray imaging
Application Number
11/262299
Publication Number
7490982 (B2)
Application Date
October 27, 2005
Publication Date
February 17, 2009
Inventor
Norbert J Johnson
North Andover
MA, US
Richard K Grant
Sudbury
MA, US
Eugene A Gregerson
Bolton
MA, US
Agent
Hamilton Brook Smith & Reynolds P C
Assignee
Medtronic Navigation
MN, US
IPC
H05G 1/02
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