Intraoperative implant augmentation

Patent metadata

Field	Value
Publication number	US-12419696-B2
Application number	US-202318119229-A
Country	US
Kind code	B2
Filing date	Mar 8, 2023
Priority date	Aug 31, 2017
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

Methods and systems of augmenting an implant intraoperatively and preparing a cone for revision surgical procedure are disclosed. A system includes a cutting device, a tracking and navigation system and a cutting system in operable communication with the cutting device and the tracking and navigation system. The cutting device includes a communication system, a cutting element, and a plurality of optical trackers. The tracking and navigation system is configured to detect a location of optical trackers. The control system is configured to cause the tracking and navigation system to detect the location of the cutting device, determine a revised shape for an implant cavity, cause the cutting device to cut the implant cavity to the revised shape, select a shape for a cone to be placed in the revised implant cavity, and machine the cone to the selected shape.

First claim

What is claimed is:

1. A method for creating a cone to augment an implant intraoperatively, the method comprising:
determining a shape of an implant cavity corresponding to the implant;
selecting a shape and a position for a cone based on at least the determined shape of the implant cavity;
creating instructions for machining the cone, wherein the machined cone has the shape selected for the cone; and
transmitting the instructions to a device for machining the cone.

2. The method of claim 1 , further comprising:
defining a coordinate system for a tracking and navigation system during a surgical procedure.

3. The method of claim 2 , wherein defining the coordinate system comprises identifying a set of fiduciary points on a patient using a registered probe having a plurality of optical trackers.

4. The method of claim 1 , wherein determining the shape of the implant cavity comprises tracing a surface of the implant cavity using a registered probe having a plurality of optical trackers.

5. The method of claim 1 , wherein determining the shape of the implant cavity comprises tracking a location of a cutting device used to shape a surface of the implant cavity.

6. The method of claim 1 , further comprising simulating the shape and the position of the cone using a graphical user interface.

7. The method of claim 6 , wherein selecting the shape and the position of the cone comprises:
modifying one or more of the shape of the cone and the position of the cone within the graphical user interface; and
altering the selected shape and the selected position of the cone based on the modifications.

8. The method of claim 1 , further comprising:
updating the shape of the cone from the selected shape to a revised shape; and
creating second instructions for machining the machined cone to the revised shape.

9. A method for creating a cone to augment an implant intraoperatively, the method comprising:
determining a shape of an implant cavity corresponding to the implant;
selecting a shape and a position for a cone based on at least the determined shape of the implant cavity;
creating instructions for machining the cone, wherein the machined cone has the shape selected for the cone; and
monitoring the machining of the cone according to the instructions.

10. The method of claim 9 , further comprising:
defining a coordinate system for a tracking and navigation system during a surgical procedure.

11. The method of claim 10 , wherein defining the coordinate system comprises identifying a set of fiduciary points on a patient using a registered probe having a plurality of optical trackers.

12. The method of claim 9 , wherein determining the shape of the implant cavity comprises tracing a surface of the implant cavity using a registered probe having a plurality of optical trackers.

13. The method of claim 9 , wherein determining the shape of the implant cavity comprises tracking a location of a cutting device used to shape a surface of the implant cavity.

14. The method of claim 9 , further comprising simulating the shape and the position of the cone using a graphical user interface.

15. The method of claim 14 , wherein selecting the shape and the position of the cone comprises:
modifying one or more of the shape of the cone and the position of the cone within the graphical user interface; and
altering the selected shape and the selected position of the cone based on the modifications.

16. The method of claim 9 , further comprising:
updating the shape of the cone from the selected shape to a revised shape; and
creating second instructions for machining the machined cone to the revised shape.

17. A system for creating a cone to augment an implant intraoperatively, the system comprising:
a computer system configured to:
virtual mapping an implant cavity to determine the shape of the implant cavity corresponding to the implant;
select a shape and a position for a cone based on at least the determined shape of the implant cavity;
create instructions for machining the cone, wherein the machined cone has the shape selected for the cone; and
transmit the instructions to a device for machining the cone.

18. The system of claim 17 , wherein the system further comprises the device for machining the cone.

19. The system of claim 17 , further comprising a point probe, wherein the computer system is further configured to determine the shape of the implant cavity via the point probe.

20. The system of claim 17 , wherein the computer system is configured to provide a graphical user interface for modifying the shape and the position of the cone.

Assignees

• Smith & Nephew Inc

Inventors

• Dees Jr Roger Ryan
• Janna Sied W
• Farley Daniel
• Jaramaz Branislav

Classifications

• A61F2002/3096

  trimmed or cut to a customised size · CPC title

• A61F2002/30736

  Augments or augmentation pieces, e.g. wedges or blocks for bridging a bone defect · CPC title

• A61F2002/30217

  hollow cones, e.g. tubular-like cones · CPC title

• A61F2/30942

  for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques · CPC title

• A61B34/25

  User interfaces for surgical systems · CPC title