Spine measurement system and method therefor

Patent metadata

Field	Value
Publication number	US-11871996-B2
Application number	US-201916710230-A
Country	US
Kind code	B2
Filing date	Dec 11, 2019
Priority date	Oct 30, 2015
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A spine measurement system comprises an optical measurement probe, one or more targets, a fluoroscope, and a remote station. A-P and lateral images of the spine are taken using the fluoroscope and provided to the remote station. The remote station includes computer vision that can identify endplates and pedicle screws in the spine. The computer vision in the remote station is further used to identify vertebra and bone landmarks of the spine. The remote station can generate quantitative measurement data such as Cobb angles and axial rotation of the spine from the fluoroscope images that correspond to the spine deformity. The optical measurement probe can send images of the spine with pedicle screw extenders extending from the pedicle screws to the remote station. The remotes station using computer vision can provide spine metrics in real-time by tracking position of the pedicle screw extenders.

First claim

What is claimed is:

1. An orthopedic operating room system comprising:
a camera configured to be focused on a region of interest of a patient;
a computer having computer vision software, wherein the computer is coupled to the camera, wherein the computer is configured to identify one or more bone landmarks in the region of interest and to recognize a type of bone from the one or more identified landmarks, and wherein the computer is configured to calculate one or more metrics related to the one or more recognized bones from image data provided in real-time by the camera; and
a display coupled to the computer, wherein the computer is configured to illustrate the one or more bones on the display, wherein the computer is configured to monitor movement of the one or more recognized bones and illustrate positions of the one or more bones in real-time on the display as the one or more bones are manipulated, wherein the computer stores at least one position of the one or more bones when the one or more bones are positioned to achieve a desired outcome as measured in the one or more metrics, and the desired outcome is used to calculate at least one characteristic for an implant system configured to maintain the desired outcome, and wherein the computer is configured to display, on a screen of the display, one or more preoperative images illustrating the recognized bones, a measurement grid overlayed on one or more of the preoperative images and, simultaneously with and adjacent to the one or more preoperative images, at least one of:
one or more intraoperative images illustrating the one or more bones for comparison with the adjacent preoperative image, and
one or more images illustrating the one or more bones after the implant system is installed for comparison with the adjacent preoperative image.

2. The orthopedic operating room system of claim 1 , wherein a pre-operative plan is displayed on the screen of the display and adjacent to the one or more preoperative images, wherein the pre-operative plan includes one or more pre-operative metrics, and wherein the pre-operative metrics can be compared against the one or more metrics generated from the image data provided in real-time by the camera, wherein the one or more metrics generated from the image data provided in real-time are displayed on the screen of the display adjacent the one or more intraoperative images or adjacent the one or more images illustrating the one or more bones after the implant system is installed.

3. The orthopedic operating room system of claim 1 , wherein a target couples to a bone of the one or more bones, wherein the target can be viewed by the camera in the region of interest, wherein the computer is configured to use the computer vision software to track the target, and wherein the computer vision software can identify a position of the bone from the target.

4. An orthopedic operating room system comprising:
a camera configured to be focused on a region of interest;
a computer, wherein the computer is configured to receive image data from the camera; and
a display including a screen and coupled to the computer, wherein:
one or more bones of a musculoskeletal system are illustrated on the display,
the computer is configured to run computer vision software,
the computer vision software is configured to recognize components of the musculoskeletal system,
the computer vision software is configured to identify the one or more bones on the display,
the computer is configured to calculate one or more metrics related to the one or more bones from image data provided in real-time by the camera,
the computer is configured to display a table, on the screen, the table containing the calculated one or more metrics, the one or more metrics including a sagittal Cobb angle, a coronal Cobb angle, and an axial rotation,
the computer is configured to display, on the screen, one or more preoperative images illustrating the one or more bones, and

the computer is configured to display, on the screen and simultaneously with and adjacent to the one or more preoperative images, one or more intraoperative images illustrating the one or more bones for comparison with the adjacent preoperative image.

5. The orthopedic operating room system of claim 4 , wherein a fluoroscope takes one or more fluoroscope images of the region of interest, wherein the camera is used to provide the one or more fluoroscope images to the computer, wherein the computer vision software is configured to identify one or more features or landmarks of each bone of the one or more bones, wherein the computer vision software recognizes each bone of the one or more bones from the one or more features or land marks of each bone, and wherein the computer is configured to display an overlay image that includes the fluoroscope image.

6. The orthopedic operating room system of claim 4 , further including a target coupled to a bone of the one or more bones, wherein the camera is configured to view the target when the bone cannot be viewed by the camera, wherein the computer vision software is configured to calculate a position of the bone from the target, wherein each bone of the one or more bones has a corresponding target.

7. The orthopedic operating room system of claim 4 , wherein the display is configured to illustrate:
movement of the one or more bones in real-time to support positioning using the one or more metrics to achieve a desired outcome, and
a pre-operative plan including one or more pre-operative metrics, wherein the pre-operative metrics are compared against the one or more metrics generated from the image data provided in real-time by the camera.

8. The orthopedic operating room system of claim 7 , wherein the computer stores a position of the one or more bones when the one or more bones are positioned to achieve the desired outcome.

9. An orthopedic operating room system comprising:
a camera configured to be focused on a region of interest;
a computer, wherein the computer is configured to receive image data from the camera; and
a display coupled to the computer, wherein:
vertebrae of a musculoskeletal system are illustrated on the display,
the computer is configured to run computer vision software,
the computer vision software is configured to recognize bone landmarks of the vertebrae, the bone landmarks including a first endplate of the vertebrae and a second endplate of the vertebrae, wherein the first endplate defines a first plane, and the second endplate defines a second plane,
the computer vision software is configured to identify at least one vertebra of the vertebrae on the display,
the computer is configured to calculate one or more metrics related to the vertebrae from image data provided in real-time by the camera,
the calculated one or more metrics are displayed on the display,
the calculated one or more metrics includes a first identified angle defined between two bones in the region of interest, the first identified angle defined by an intersection of the first plane and the second plane, and
the computer is configured to indicate when the one or more metrics indicate achieving a desired outcome.

10. The orthopedic operating room system of claim 9 , wherein each vertebra has a corresponding pedicle screw, wherein the computer vision software can determine a position of each vertebra from the corresponding pedicle screw, wherein the display is configured to illustrate positioning of the vertebrae as a spine is manipulated in real time, wherein each pedicle screw has a corresponding pedicle screw extender, wherein the computer vision software can determine a position of each vertebra from the corresponding pedicle screw extender, and wherein the c

Assignees

• Herrmann Erik
• Clegg Scott
• Orthosensor Inc

Inventors

• Herrmann Erik
• Clegg Scott

Classifications

• A61B34/10 Primary

  Computer-aided planning, simulation or modelling of surgical operations · CPC title

• A61B5/407

  Evaluating the spinal cord (for locating the epidural space A61B5/4896) · CPC title

• A61B5/1079

  using optical or photographic means · CPC title

• A61B2034/102

  Modelling of surgical devices, implants or prosthesis · CPC title

• A61B2034/105

  Modelling of the patient, e.g. for ligaments or bones · CPC title