Systems and methods for treating a joint

Patent metadata

Field	Value
Publication number	US-12502218-B2
Application number	US-202016785367-A
Country	US
Kind code	B2
Filing date	Feb 7, 2020
Priority date	Feb 8, 2019
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

Disclosed are computer visual guidance systems for guiding surgeons through arthroscopic debridement of bony pathologies, including by automatically generating annotations relating to characteristics of bony pathology in an image. The annotation may be generated in accordance with a determination as to whether a femoral head of the bony pathology is endospherical or exospherical. The annotation may be generated in accordance with a mathematical model created based on anatomies of subjects other than the patient. Further disclosed is a user interfaces for guiding a surgeon through arthroscopic debridement of a bony pathology, wherein intraoperative images are displayed simultaneously with a preoperative plan comprising interactive three-dimensional models of an anatomical feature of a patient. Further disclosed is a user interface for guiding a physician in categorizing images of a patient, wherein the interface comprises an image viewing window and an interactive checklist for different image categories to be captured.

First claim

The invention claimed is:

1 . A system for annotating an image of a bony pathology for a surgical procedure on the bony pathology, wherein the system comprises a processor and a display and is configured to:
receive an image of the bony pathology; automatically analyze the image to determine whether a femoral head of the bony pathology is endospherical; in accordance with determining that the femoral head is endospherical, determine at least a portion of a resection curve according to a first set of parameters; and in accordance with determining that the femoral head is not endospherical, determine the at least a portion of the resection curve according to a second set of parameters, the first and second sets of parameters including at least one parameter that is not shared; automatically annotate the image with the at least a portion of the resection curve to create an annotated image, wherein the at least a portion of the resection curve indicates how the bony pathology depicted in the image should be resected; display a graphical user interface comprising the annotated image and at least one graphical object configured to adjust at least one parameter of the first set of parameters or the second set of parameters; receive at least one input from a user moving the at least one graphical object to a desired location of the graphical user interface; and in response to the at least one input, automatically modify and display the at least a portion of the resection curve in the annotated image of the graphical user interface based on the at least one input.

2 . The system of claim 1 , wherein determining whether the femoral head is endospherical comprises determining whether an edge of the femoral head in the image extends beyond a predetermined threshold distance inside a circle of best fit for the femoral head.

3 . The system of claim 1 , wherein the first set of parameters comprises an endospherical point of the femoral head, a target point, and a location of the femoral neck.

4 . The system of claim 3 , wherein the at least a portion of the resection curve determined according to the first set of parameters starts at the endospherical point, goes through the target point, and ends on the location of the femoral neck.

5 . The system of claim 1 , wherein the second set of parameters comprises a point where bone first deviates from the best-fit circle, a target point, and a location of the femoral neck.

6 . The system of claim 5 , wherein the at least a portion of the resection curve determined according to the second set of parameters starts at the point where the bone first deviates from a circle of best fit, goes through the target point, and ends on the location of the femoral neck.

7 . The system of claim 1 , wherein at least one graphical object comprises a slider, and the at least a portion of the resection curve in the annotated image in the graphical user interface is automatically modified as the user moves the slider.

8 . The system of claim 1 , wherein the at least one parameter of the first set of parameters or the second set of parameters that is configured to be adjusted by the graphical object is a target alpha angle.

9 . The system of claim 1 , wherein the at least one parameter of the first set of parameters or the second set of parameters that is configured to be adjusted by the graphical object is a resection curve length.

10 . The system of claim 1 , wherein the at least one parameter of the first set of parameters or the second set of parameters that is configured to be adjusted by the graphical object is a resection curve depth.

11 . A system for annotating an image of a bony pathology of a patient for a surgical procedure on the bony pathology, wherein the system comprises a processor and a display and is configured to:
receive data regarding anatomy of subjects other than the patient; based at least in part on the data regarding anatomy of subjects other than the patient, generate and store a mathematical model that includes characteristics of non-pathologic anatomy, the mathematical model configured to accept characteristics of anatomy as input and to generate at least a portion of a resection curve as an output; receive an image of the bony pathology of the patient; automatically analyze the image to determine at least one characteristic of the bony pathology of the patient; based on the at least one characteristic of the bony pathology of the patient, automatically generate a first segment of a resection curve for the image of the bony pathology of the patient and use the mathematical model to automatically generate a second segment of the resection curve for the image of the bony pathology of the patient such that the second segment of the resection curve for the image is a function of the characteristics of non-pathologic anatomy and the at least one characteristic of the bony pathology of the patient, the resection curve for the image indicating how the bony pathology depicted in the image should be resected; and display a graphical user interface comprising an annotated image of the bony pathology of the patient and at least one graphical object, the annotated image comprising the resection curve for the image, and the graphical object configured to adjust at least one parameter used to generate the resection curve; receive at least one input from a user moving the at least one graphical object to a desired location of the graphical user interface; and in response to the at least one input, automatically modify and display the resection curve in the annotated image of the graphical user interface based on the at least one input.

12 . The system of claim 11 , wherein automatically generating the second segment of the resection curve for the image comprises determining one or more of an end point distal on the femoral neck and a control point for forming a spline in the second segment of the resection curve for the image.

13 . The system of claim 11 , wherein generating and storing the mathematical model is based at least in part on femoral head and neck curvatures of the anatomy of the subjects in the plurality of images.

14 . The system of claim 11 , wherein the at least one characteristic of the bony pathology of the patient comprises one or more selected from: femoral head radius; femoral neck width; endospherical femoral head shape; exospherical femoral head shape; distance from neck center to target Alpha Angle; and angle formed from (a) a neck width upper point, (b) a head center, and (c) a neck width lower point.

15 . The system of claim 11 , wherein the mathematical model is a regression model.

16 . A method for annotating an image of a bony pathology of a patient for a surgical procedure on the bony pathology, the method comprising:
receiving data regarding anatomy of subjects other than the patient; based at least in part on the data regarding anatomy of subjects other than the patient, generating and storing a mathematical model that includes characteristics of non-pathologic anatomy, the mathematical model configured to accept characteristics of anatomy as input and to generate at least a portion of a resection curve as an output; receiving an image of the bony pathology of the patient; automatically analyzing the image to determine at least one characteristic of the bony pathology of the patient; based on the at least one characteristic of the bony pathology of the patient, automatically generating a first segment of a resection curve for the image of the bony pathology of the patient and automatically generatin

Assignees

• Stryker Corp

Inventors

• Fouts Brian
• Zeh Christopher
• Godbey Ruth

Classifications

• G16H70/60

  relating to pathologies · CPC title

• A61B2034/105

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

• A61B2034/102

  Modelling of surgical devices, implants or prosthesis · CPC title

• A61B34/25

  User interfaces for surgical systems · CPC title

• G06T2207/30008

  Bone · CPC title