The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1999
Filed:
Sep. 05, 1997
Chan F Lam, Mt. Pleasant, SC (US);
Stephen J Nelson, Charleston, SC (US);
Abstract
An apparatus controls a stereotactic radiosurgery dose applied to an object being treated by a linear accelerator mounted on a gantry. The linear accelerator is capable of generating a beam having a path and a beam centerline, directed toward the object, and the beam is capable of having a plurality of angular positions relative to the object. The apparatus includes a turntable that is rotatable about an axis of rotation and defines a plurality of openings passing therethrough. Each opening has a center and receives therein a beam collimator of a preselected size. The turntable is disposed so that each of the plurality of openings may be rotated to where the center of the opening is coincident with the beam centerline, thereby allowing the beam to pass therethrough. A drive rotates the turntable about the axis of rotation and a sensor determines the angular position of the beam relative to the object. A controller that is responsive to the angular position determining sensor controls the turntable rotating drive so that as the angular position of the beam relative to the object changes, a preselected collimator is in the path of the beam.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile