System and method for stereotactic registration of image scan data
First Claim
1. A system using designated index locations, for indicating positional relationships of an object field including a surgical instrument as related to a subject patient'"'"'s anatomy represented by image-scanner data, said system comprising:
- a memory for storing said image-scanner data representing the subject patient'"'"'s anatomy and referenced in scanner-data coordinates to said designated index locations;
a camera apparatus for providing position data indicative of said designated index locations and said surgical instrument whereby to track said surgical instrument in relation to said designated index locations;
a computer graphics apparatus for transforming at least one of said position data and said image-scanner data to provide said image-scanner data and said position data in compatible coordinates;
an image generator for combining said image-scanner data and said position data to form combined display data; and
a display unit for receiving said combined display data to provide an image display including the subject patient'"'"'s anatomy.
3 Assignments
0 Petitions
Accused Products
Abstract
A system for computer graphic determination and display of a patient'"'"'s anatomy, as from CT or MR scanning, and stored along with associated equipment in an object field including the patient'"'"'s anatomy. A first digitizing camera structure produces a signal representative of its field-of-view which defines coordinates of index points in its field-of-view. A second digitizing camera structure produces similar output for an offset field-of-view. The two camera positions are defined with respect to the patient'"'"'s anatomy so that the fields-of-view of the cameras include both the patient'"'"'s anatomy and the equipment, but are taken from different directions. Index markers are for fixing points in the fields of view and accordingly locate equipment relative to said patient anatomy. The index markers are provided by variety of structures including, light sources in various forms as reflectors, diodes, and laser scanner structures to provide a visible grid, mesh or cloud of points.
1053 Citations
79 Claims
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1. A system using designated index locations, for indicating positional relationships of an object field including a surgical instrument as related to a subject patient'"'"'s anatomy represented by image-scanner data, said system comprising:
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a memory for storing said image-scanner data representing the subject patient'"'"'s anatomy and referenced in scanner-data coordinates to said designated index locations; a camera apparatus for providing position data indicative of said designated index locations and said surgical instrument whereby to track said surgical instrument in relation to said designated index locations; a computer graphics apparatus for transforming at least one of said position data and said image-scanner data to provide said image-scanner data and said position data in compatible coordinates; an image generator for combining said image-scanner data and said position data to form combined display data; and a display unit for receiving said combined display data to provide an image display including the subject patient'"'"'s anatomy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 79)
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33. A method of determining the positional relationship of a surgical instrument with respect to a subject patient'"'"'s anatomy comprising the steps of:
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designating at least one index location for detection in relation to the subject patient'"'"'s anatomy and the surgical instrument; storing three dimensional image scanner data representative of the subject patient'"'"'s anatomy in scanner-data coordinates and referenced to said at least one index location; determining, using a camera system, the position of said surgical instrument in detector coordinates relative to the subject patient'"'"'s anatomy based on said at least one index location and represented by surgical instrument data; correlating the surgical instrument data and the image scanner data representative of the subject patient'"'"'s anatomy to a compatible coordinate system; combining said surgical instrument data and said image scanner data in said compatible coordinate system to provide display signals; and driving a computer graphics display with said display signals to display said surgical instrument in relation to said subject patient'"'"'s anatomy. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A system using designated index locations, for indicating positional relationships of an object field including a surgical instrument as related to a subject patient'"'"'s anatomy represented by image-scanner data, said system comprising;
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a memory for storing said image-scanner data representing the subject patient'"'"'s anatomy and referenced in scanner-data coordinates to said designated index locations; a camera apparatus for optically sensing said object field from plural different fields of view to provide location data comprising first data associated with said designated index locations and second data associated with said surgical instrument; a computer graphics apparatus for transforming at least one of sad location data and said image-scanner data to provide said image-scanner data and said location data in compatible coordinates; an image generator for combining said image-scanner data and said location data to form combined display data; and a display unit for receiving said combined display data to provide an image display including the subject patient'"'"'s anatomy. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. A system using designated index locations, for indicating positional relationships of an object field including a surgical instrument as related to a subject patient'"'"'s anatomy represented by image-scanner data, said system comprising:
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a memory for storing said image-scanner data representing the subject patient'"'"'s anatomy and referenced in scanner-data coordinates to said designated index locations; a camera apparatus for sensing plural fields of view of said object field for tracking said surgical instrument in said fields of view relative to said designated index locations, said camera apparatus providing location data relating said surgical instrument to said image scanner data; a computer graphics apparatus for transforming data based on said index locations to provide said image-scanner data and said location data in compatible coordinates; an image generator for combining said image-scanner data and said location data to form combined display data; and a display unit for receiving said combined display data to provide an image display including the subject patient'"'"'s anatomy. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78)
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Specification