Method and system for restoration of a navigation data loss...

Data processing: measuring – calibrating – or testing – Calibration or correction system – Position measurement

Reexamination Certificate

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C702S095000, C702S104000, C702S134000, C702S152000, C702S153000, C324S207160, C324S207180, C324S207190, C324S207260, C342S463000, C600S407000, C600S424000, C600S427000, C600S429000

Reexamination Certificate

active

07933730

ABSTRACT:
A method for restoring navigation failure information in a fluoroscopy-based imaging system is disclosed. The method includes obtaining a plurality of receiver navigation information using a calibration target rigidly attached to a supporting member of the imaging system. The calibration target may include a plurality of receivers providing navigation information and the supporting member may be a C-arm. The method identifies a navigation failure and corresponding to the navigation failure a calibrated receiver navigation information is generated. The calibrated receiver navigation information is generated using a calibration information and a C-arm imaging position obtained during navigation failure. A receiver navigation information corresponding to the navigation failure is estimated using the calibrated receiver navigation information, and a transmitter navigation information. Also disclosed is a restoration unit for restoring navigation failure information in a fluoroscopy-based imaging system and a fluoroscopic imaging system using the restoration unit.

REFERENCES:
patent: 6470207 (2002-10-01), Simon et al.
patent: 6490475 (2002-12-01), Seeley et al.
patent: 2007/0078334 (2007-04-01), Scully et al.
Livyatan et al.“Robust Automatic C-Arm Calibration for Flouroscopy-Based Navigation: A Practical Approach,” pp. 60-68; 2002.
Disclosed Anonymously. “Method of Seed Estimation for Electromagnetic Tracker using a Priori Information.” IP.com No. IPCOM000126878D, Aug. 5, 2005.

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