06920347 is referenced by 158 patents and cites 482 patents.

Apparatus and methods are disclosed for use within an image-guided surgical navigation system for the storage and measurement of trajectories for surgical instruments. An icon representing the real-time trajectory of a tracked instrument is overlaid on one or more pre-acquired images of the patient. At the surgeon's command, the navigation system can store multiple trajectories of the instrument and create a static icon representing each saved trajectory for display. The surgeon may also measure a planar angle between any two trajectories. The angle is computed in the plane of the image, and therefore will be computed separately for each image displayed. Furthermore, the surgeon has the option of computing and displaying the three-dimensional distance between two points defined by any two trajectories.

Title
Trajectory storage apparatus and method for surgical navigation systems
Application Number
10/177739
Publication Number
6920347 (B2)
Application Date
June 21, 2002
Publication Date
July 19, 2005
Inventor
Anthony J Melkent
Germantown
TN, US
Thomas Andrew Carls
Memphis
TN, US
Kevin T Foley
Memphis
TN, US
David Anthony Simon
Boulder
CO, US
Agent
Harness Dickey & Pierce
Assignee
Surgical Navigation Technologies
CO, US
IPC
G09G 003/02
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