Surgery – Instruments
Reexamination Certificate
2004-04-27
2009-02-17
Dvorak, Linda C (Department: 3739)
Surgery
Instruments
C600S117000, C600S118000, C600S424000, C600S427000, C600S429000, C606S130000
Reexamination Certificate
active
07491198
ABSTRACT:
A system and method for navigation within a surgical field are presented. In exemplary embodiments according to the present invention a micro-camera can be provided in a hand-held navigation probe tracked by a tracking system. This enables navigation within an operative scene by viewing real-time images from the viewpoint of the micro-camera within the navigation probe, which are overlaid with computer generated 3D graphics depicting structures of interest generated from pre-operative scans. Various transparency settings of the camera image and the superimposed 3D graphics can enhance the depth perception, and distances between a tip of the probe and any of the superimposed 3D structures along a virtual ray extending from the probe tip can be dynamically displayed in the combined image. In exemplary embodiments of the invention a virtual interface can be displayed adjacent to the combined image on a system display, thus facilitating interaction with various navigation related functions. In exemplary embodiments according to the present invention virtual reality systems can be used to plan surgical approaches with multi-modal CT and MRI data. This allows for generating 3D structures as well as marking ideal surgical paths. The system and method presented thus enable transfer of a surgical planning scenario to a real-time view of an actual surgical field, thus enhancing navigation.
REFERENCES:
patent: 6036637 (2000-03-01), Kudo
patent: 6167296 (2000-12-01), Shahidi
patent: 6535756 (2003-03-01), Simon et al.
Bracco Imaging S.p.A.
Dvorak Linda C
Haleva Aaron S.
Kasztejna Matthew J
Kramer Levin Naftalis & Frankel LLP
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