Fluoroscopic tracking and visualization system
First Claim
1. A system for surgical imaging and display of tissue structures of a patient, said system including a display and an image processor for displaying such images in coordination with a tool image to facilitate manipulation of the tool during the surgical procedure, the system being configured for use with a fluoroscope such that at least one image in the display is derived from the fluoroscope at the time of surgery, said system comprising:
- a fixture affixed to an imaging side of said fluoroscope for providing patterns of an array of markers that are imaged in each fluoroscope image; and
a tracking assembly having a plurality of tracking elements operative to determine positions of said fixture and the patient, one of said plurality of tracking elements being secured against motion with respect to said fixture so that determining a position of said one of said plurality of tracking elements determines a position of all the markers in a single measurement.
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Accused Products
Abstract
A system for surgical imaging and display of tissue structures of a patient, including a display and an image processor for displaying such images in coordination with a tool image to facilitate manipulation of the tool during the surgical procedure. The system is configured for use with a fluoroscope such that at least one image in the display is derived from the fluoroscope at the time of surgery. A fixture is affixed to an imaging side of the fluoroscope for providing patterns of an of array markers that are imaged in each fluoroscope image. A tracking assembly having a plurality of tracking elements is operative to determine positions of said fixture and the patient. One of the tracking elements is secured against motion with respect to the fixture so that determining a position of the tracking element determines a position of all the markers in a single measurement.
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Citations
19 Claims
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1. A system for surgical imaging and display of tissue structures of a patient, said system including a display and an image processor for displaying such images in coordination with a tool image to facilitate manipulation of the tool during the surgical procedure, the system being configured for use with a fluoroscope such that at least one image in the display is derived from the fluoroscope at the time of surgery, said system comprising:
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a fixture affixed to an imaging side of said fluoroscope for providing patterns of an array of markers that are imaged in each fluoroscope image; and
a tracking assembly having a plurality of tracking elements operative to determine positions of said fixture and the patient, one of said plurality of tracking elements being secured against motion with respect to said fixture so that determining a position of said one of said plurality of tracking elements determines a position of all the markers in a single measurement. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for use with a fluoroscope that includes a source and an image detector, said system comprising:
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a fixture including a three dimensional array of markers disposed over a region in a rigid body, said body being configured for disposition between said source and said detector such that said array of markers is automatically imaged as an image is acquired by said fluoroscope;
a tracking assembly including a first tracking element associated with a tool, a second tracking element associated with a patient, a third tracking element associated with said image detector, and a fourth tracking element associated with said fixture, and said plurality of tracking elements being configured to automatically determine position data each of said tool, patient, image detector and fixture relative to one another. - View Dependent Claims (8, 9, 10, 11)
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12. A medical imaging system that includes a fluoroscope having a source and a detector, said system comprising:
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a fixture including a three dimensional array of markers disposed over a region in a rigid body, said body being configured for disposition between said source and said detector such that said array of markers is automatically imaged as an image is acquired by said fluoroscope;
a tracking assembly including at least a first tracking element associated with said fixture and a second tracking element associated with a tool, said tracking assembly configured to automatically determine position data of said fixture with respect to said tool; and
an image processor operative on a fluoroscopic image to identify imaged markers in said fluoroscopic image, and wherein said image processor is operative with a stored table of position of said array of markers to model at least camera data for said fluoroscopic image, wherein said image processor applies said position data together with image positions of said array of markers to model said camera data, and wherein said processor forms a volume image data set of said fluoroscopic image. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification