Orthopedic fixation with imagery analysis
AssigneeDePuy Synthes Products, Inc.
InventorArkadijus Nikonovas
Life of this patent
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Abstract
Methods of orthopedic fixation and imagery analysis are provided. Images of first and second bone segments attached to a fixation apparatus are captured. Fixator elements identified in the images can be used to obtain imaging scene parameters. Bone elements identified in the images can be used with the imaging scene parameters to reconstruct a three dimensional representation of positions and/or orientations of the first and second bone segments with respect to the fixation apparatus.
Claims20
A computer-implemented method of orthopedic fixation imagery analysis, the computer-implemented method comprising:
- acquiring, by one or more computing devices, first and second two dimensional images of a fixation apparatus and first and second bone segments attached thereto, wherein the first two dimensional image is captured from a first orientation and the second two dimensional image is captured from a second orientation that is different from the first orientation;
- obtaining, by the one or more computing devices, imaging scene parameters based in part on respective locations of a plurality of fixator elements in the first and the second two dimensional images, the plurality of fixator elements having corresponding physical locations in three dimensional space, wherein the obtaining of the imaging scene parameters comprises:
- identifying the respective locations of the plurality of fixator elements in the first and the second two dimensional images;
- and
- computing, based on the plurality of fixator elements, first and second transformation matrices associated with relating the corresponding physical locations of the plurality of fixator elements in the three dimensional space to the respective locations of the plurality of fixator elements in the first and the second two dimensional images;
- and
- reconstructing, by the one or more computing devices, a three dimensional representation of the first and the second bone segments with respect to the fixation apparatus based upon the imaging scene parameters.
One or more non-transitory computer-readable storage media having stored thereon instructions that, upon execution by one or more computing devices, cause the one or more computing devices to perform operations comprising:
- acquiring, by the one or more computing devices, first and second two dimensional images of a fixation apparatus and first and second bone segments attached thereto, wherein the first two dimensional image is captured from a first orientation and the second two dimensional image is captured from a second orientation that is different from the first orientation;
- obtaining, by the one or more computing devices, imaging scene parameters based in part on respective locations of a plurality of fixator elements in the first and the second two dimensional images, the plurality of fixator elements having corresponding physical locations in three dimensional space, wherein the obtaining of the imaging scene parameters comprises:
- identifying the respective locations of the plurality of fixator elements in the first and the second two dimensional images;
- and
- computing, based on the plurality of fixator elements, first and second transformation matrices associated with relating the corresponding physical locations of the plurality of fixator elements in the three dimensional space to the respective locations of the plurality of fixator elements in the first and the second two dimensional images;
- and
- reconstructing, by the one or more computing devices, a three dimensional representation of the first and the second bone segments with respect to the fixation apparatus based upon the imaging scene parameters.
Dependencies are inferred from the claim text.