Optically coupled frameless stereotactic system and method
First Claim
1. A process for providing an instant graphics display including anatomy of a patient and showing indications of a surgical instrument and a microscope in relation to indications of internal and external anatomy of a patient, the process including the steps of:
- indexing a patient'"'"'s anatomy, the surgical instrument and the microscope to define fiducial point locations;
storing scanned image data taken of the patient representative of internal anatomy and indexed at said fiducial point locations;
optically sensing a data field encompassing the patient'"'"'s anatomy, the surgical instrument and the microscope with a camera to provide representative camera data indexed at said fiducial point locations;
correlating said scanned image data and said representative camera data based on said fiducial point locations to provide instant graphics display data; and
driving a computer graphics display with said instant graphics display data to show indications of the surgical instrument and the microscope in relation to indications of internal and external anatomy of the patient.
3 Assignments
0 Petitions
Accused Products
Abstract
A system for quantitative computer graphic determination of positions on a patient'"'"'s anatomy and positions on associated equipment located near the patient'"'"'s anatomy in relation to anatomical data, as from CT or MR scanning. A first camera produces a quantitative electronic readout of its field-of-view which provides a determination of relative spacial coordinates of uniquely identifiable points in its field-of-view. A second camera produces a quantitative electronic readout of its field-of-view which provides a determination of relative spacial coordinates of uniquely identifiable points in its field-of-view. The two cameras are located with respect to the patient'"'"'s anatomy and the associated equipment so that the fields-of-view of the cameras include both the patient'"'"'s anatomy and the equipment, but are taken from different directions. A body marker is positioned with respect to the patient'"'"'s anatomy at a known position relative to said patient anatomy. The body marker has known coordinates in a stereotactic coordinate system that is established relative to the patient'"'"'s anatomy so that the coordinates of all identifiable points in the fields of view of the two cameras can be determined relative to the stereotactic coordinate system and related to imaging data.
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Citations
15 Claims
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1. A process for providing an instant graphics display including anatomy of a patient and showing indications of a surgical instrument and a microscope in relation to indications of internal and external anatomy of a patient, the process including the steps of:
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indexing a patient'"'"'s anatomy, the surgical instrument and the microscope to define fiducial point locations; storing scanned image data taken of the patient representative of internal anatomy and indexed at said fiducial point locations; optically sensing a data field encompassing the patient'"'"'s anatomy, the surgical instrument and the microscope with a camera to provide representative camera data indexed at said fiducial point locations; correlating said scanned image data and said representative camera data based on said fiducial point locations to provide instant graphics display data; and driving a computer graphics display with said instant graphics display data to show indications of the surgical instrument and the microscope in relation to indications of internal and external anatomy of the patient. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for use with respect to a patient'"'"'s anatomy and a surgical device in the proximity of the patient'"'"'s anatomy, for indicating the current position of the surgical device with respect to a patient'"'"'s anatomy, comprising:
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memory means for storing and providing image scanned data representative of the patient'"'"'s anatomy in three dimensions; a camera system for providing current position data indicative of the patient'"'"'s anatomy and the surgical device whereby to track movement of the surgical device in relation to the patient'"'"'s anatomy; means for referencing said current position data to said image scanned data to provide composite display signals indicative of the surgical device in relation to the patient'"'"'s anatomy as represented by said image scanned data; and a display means for displaying said composite display signals to indicate the current position of the surgical device in relation to the patient'"'"'s anatomy. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification