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:
Dec. 06, 2016
Filed:
Apr. 12, 2013
University of Florida Research Foundation, Inc., Gainesville, FL (US);
Guanghua Yan, Gainesville, FL (US);
Bo Lu, Gainesville, FL (US);
Chihray Liu, Gainesville, FL (US);
Jonathan G. Li, Gainesville, FL (US);
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC., Gainesville, FL (US);
Abstract
A patient safety system (PSS) () uses optical tracking in a linear accelerator treatment room to prevent gross setup errors. A patient () undergoes a computed tomography (CT) treatment-simulation scan while a CT ball bearing (BB) is on patient's surface. The CT BB is replaced with an infrared reflective marker (IRRM) () before radiotherapy treatment starts. Coordinates of the CT BB relative to an isocenter of the treatment room are used as reference for tracking. The coordinate system of an optical tracking system is converted to a coordinate system of the treatment room. The PSS evaluates setup accuracy for a radiotherapy session by comparing real-time position of the single IRRM determined by the optical tracking technology with a predicted reference position, and displays results on a graphical user interface. The PSS stops radiation when a deviation between real-time coordinates and predicted coordinates of the IRRM () exceeds a predefined threshold.