Method and apparatus for implantation between two vertebral bodies
First Claim
Patent Images
1. A method of selecting a position for a prosthesis to be implanted in an anatomy, comprising:
- obtaining image data of the anatomy that includes at least a portion of a spine having at least two substantially adjacent vertebrae;
displaying the obtained image data on an image device viewable by a user;
defining a plurality of points on the displayed image data corresponding at least to each of a first vertebra and a second vertebra of the at least two substantially adjacent vertebrae, the plurality of defined points including a posterior point on a spinous process, a lateral point on a transverse process, a lateral point on a vertebral body, or combinations thereof;
determining a midline of the first vertebra and the second vertebra based at least on the defined plurality of points;
determining a midline of the portion of the spine based on the determined midline of the first vertebra and the determined midline of the second vertebra;
displaying the determined spinal midline on the displayed image data relative to at least the portion of the spine;
tracking a sensor coupled to an instrument;
determining a position of the instrument relative to at least one of the defined plurality of points of the first and second vertebrae and the determined spinal midline based on tracking of the sensor;
determining an incision point relative to at least one of the defined plurality of points of the first and second vertebrae and the determined spinal midline;
navigating a surgical procedure through an incision and relative to the defined plurality of points and the determined spinal midline; and
navigating the prosthesis through the incision and relative to at least the determined spinal midline to the selected position, wherein said prosthesis navigation substantially assists in positioning the prosthesis in the selected position.
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Abstract
A method and system to assist in a planning and navigation of procedure. Generally, the system allows for image acquisition of a selected area of the anatomy. The images may then be used to mark various points to determine true anatomical definitions and planes. The definitions may assist in positioning a prosthesis.
603 Citations
33 Claims
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1. A method of selecting a position for a prosthesis to be implanted in an anatomy, comprising:
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obtaining image data of the anatomy that includes at least a portion of a spine having at least two substantially adjacent vertebrae; displaying the obtained image data on an image device viewable by a user; defining a plurality of points on the displayed image data corresponding at least to each of a first vertebra and a second vertebra of the at least two substantially adjacent vertebrae, the plurality of defined points including a posterior point on a spinous process, a lateral point on a transverse process, a lateral point on a vertebral body, or combinations thereof; determining a midline of the first vertebra and the second vertebra based at least on the defined plurality of points; determining a midline of the portion of the spine based on the determined midline of the first vertebra and the determined midline of the second vertebra; displaying the determined spinal midline on the displayed image data relative to at least the portion of the spine; tracking a sensor coupled to an instrument; determining a position of the instrument relative to at least one of the defined plurality of points of the first and second vertebrae and the determined spinal midline based on tracking of the sensor; determining an incision point relative to at least one of the defined plurality of points of the first and second vertebrae and the determined spinal midline; navigating a surgical procedure through an incision and relative to the defined plurality of points and the determined spinal midline; and navigating the prosthesis through the incision and relative to at least the determined spinal midline to the selected position, wherein said prosthesis navigation substantially assists in positioning the prosthesis in the selected position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of selecting a position for a prosthesis to be implanted in an anatomy, comprising:
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obtaining image data of the anatomy that includes at least a portion of a spine having at least two substantially adjacent vertebrae, and displaying the obtained image data to be viewable by a user; positioning a dynamic reference frame relative to at least one of a first vertebra or a second vertebra of the two substantially adjacent vertebrae such that the dynamic reference frame is moveable with the at least one of the first and second vertebrae; defining a plurality of points on the displayed image data corresponding at least to each of the first and second vertebrae; determining a midline of the first vertebra and the second vertebra on the displayed image data based at least on the defined plurality of points; determining a midline of the portion of the spine on the displayed image data based at least on the determined midlines of the first and second vertebrae; tracking a sensor coupled to an instrument; determining a position of the instrument relative to at least one of the defined plurality of points of the first and second vertebrae and the determined spinal midline based on tracking of the sensor; navigating a surgical procedure relative to the defined plurality of points and the determined spinal midline, including manipulating a position of at least one of the first or second vertebrae; positioning a prosthesis template relative to the first and second vertebrae and displaying an image of the template relative to the first and second vertebrae on the displayed image data; and updating the displayed image data using at least the dynamic reference frame to reflect the manipulated position of the at least one of the first or second vertebrae relative to the instrument and the determined spinal midline. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of selecting a position for a prosthesis to be implanted in an anatomy, comprising:
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obtaining image data of the anatomy that includes at least a portion of a spine having at least two substantially adjacent vertebrae, and displaying the obtained image data to be viewable by a user; positioning a first dynamic reference frame relative to a first vertebra of the substantially two adjacent vertebrae and a second dynamic reference frame relative to a second vertebra of the substantially two adjacent vertebra such that such that the first and second dynamic reference frames are each moveable with the respective first and second vertebrae; defining a plurality of points on the displayed image corresponding at least to each of the first or second vertebrae; determining a midline of the first vertebra and the second vertebra on the displayed image data based at least on the defined plurality of points; determining a midline of the portion of the spine on the displayed image data based at least on the determined midlines of the first and second vertebrae; navigating a surgical procedure relative to the defined plurality of points and the determined spinal midline, including distracting the first and second vertebrae to a distracted position; updating the displayed image data using at least the first and second dynamic reference frames to reflect the distracted position of the first and second vertebrae relative to the determined spinal midline and the defined plurality of points; tracking a sensor associated with the prosthesis; and positioning the prosthesis relative to the distracted first and second vertebrae. - View Dependent Claims (29, 30, 31)
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32. A method of selecting a position for a prosthesis to be implanted in an anatomy, comprising:
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obtaining image data of the anatomy that includes at least a portion of a spine having at least two substantially adjacent vertebrae; displaying the obtained image data on an image device viewable by a user; defining a plurality of points on the displayed image data corresponding at least to each of a first vertebra and a second vertebra of the at least two substantially adjacent vertebrae, the plurality of defined points including a posterior point on a spinous process, a lateral point on a transverse process, a lateral point on a vertebral body, or combinations thereof; determining a midline of the first vertebra and the second vertebra based at least on the defined plurality of points; determining a midline of the portion of the spine based on the determined midline of the first vertebra and the determined midline of the second vertebra; displaying the determined spinal midline on the displayed image data relative to at least the portion of the spine; and navigating the prosthesis relative to at least the determined spinal midline to the selected position, wherein said prosthesis navigation substantially assists in positioning the prosthesis in the selected position.
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33. A method of selecting a position for a prosthesis to be implanted in an anatomy, comprising:
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obtaining image data of the anatomy that includes at least a portion of a spine having at least two substantially adjacent vertebrae, and displaying the obtained image data to be viewable by a user; positioning a dynamic reference frame relative to at least one of a first vertebra or a second vertebra of the two substantially adjacent vertebrae such that the dynamic reference frame is moveable with the at least one of the first and second vertebrae; defining a plurality of points on the displayed image data corresponding at least to each of the first and second vertebrae; determining a midline of the first vertebra and the second vertebra on the displayed image data based at least on the defined plurality of points; determining a midline of the portion of the spine on the displayed image data based at least on the determined midlines of the first and second vertebrae; navigating the prosthesis relative to the defined plurality of points and the determined spinal midline, including manipulating a position of at least one of the first or second vertebrae; and updating the displayed image data using at least the dynamic reference frame to reflect the manipulated position of the at least one of the first or second vertebrae relative to the determined spinal midline.
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Specification