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. 17, 2004
Filed:
Apr. 29, 2002
Mario Zeiss, Poing, DE;
BrainLAB AG, Kirchheim/Heimstetten, DE;
Abstract
A method and system for calibrating x-ray image data for medical navigation using a calibration instrument that is detected and tracked by a medical navigation system and has a plurality of localization structures that are detectable in x-ray images. The localization structures are arranged on at least two spaced supports. The method includes producing an x-ray image without a patient of the localization structures while the calibration instrument is tracked by a medical navigation system. After the x-ray image is registered in the medical navigation system using the localization structures, at least one of the spaced supports is removed from the calibration instrument. A second x-ray image is taken of a patient together with the calibration instrument with the support removed. The two images are compared to determine whether there is sufficient correspondence of the localization structures visible in the two images.