Computer-assisted cranioplasty

Patent metadata

Field	Value
Publication number	US-12268607-B2
Application number	US-202117511987-A
Country	US
Kind code	B2
Filing date	Oct 27, 2021
Priority date	Feb 18, 2015
Publication date	Apr 8, 2025
Grant date	Apr 8, 2025

Abstract

Provided is a surgical method. The method includes detecting a location of a reference unit having a trackable element with a detector, the detector configured to provide at least one signal corresponding to a detected location of at least the reference unit's trackable element; accessing a computer-readable reconstruction of the being's anatomy; accessing a computer-readable reconstruction of an implant; detecting a location of a pointer tool comprising a trackable element with the detector, where the pointer tool is associated with a location of an anatomical feature of interest; accessing at least one computer-readable reconstruction of a trace, the trace corresponding to a geometry of the anatomical feature of interest; and superimposing the at least one updatable, computer-readable trace on the second computer-readable reconstruction of the implant.

First claim

What is claimed is:

1. A method of sizing a surgical implant to an anatomical feature characterized in part by a missing or malformed portion in a cranioplasty, the method comprising:
generating at least one computer-readable reconstruction of the anatomical feature with a source, wherein the at least one computer-readable reconstruction of the anatomical feature includes position information corresponding to an orientation of the source, wherein the being's anatomy comprises a skull;
accessing the at least one computer-readable reconstruction of the being's anatomy and position information;
displaying an image based on the at least one computer-readable reconstruction of the anatomical feature and the position information; and
projecting the image onto a surface of the surgical implant, wherein a surgeon traces the image with a sterile marking pen directly onto the surface of the surgical implant to outline projected points of the anatomical feature in the image onto corresponding physical locations on the surface of the surgical implant, and wherein the projecting is performed using a projector device.

2. The method of claim 1 , wherein the at least one computer-readable reconstruction of the being's anatomy comprises a plurality of digital images, wherein at least one of the plurality of digital images is associated with the position information.

3. The method of claim 2 , further comprising stitching the plurality of digital images together to form the computer-readable reconstruction of the being's anatomy.

4. The method of claim 1 , wherein the source that generates the at least one computer-readable reconstruction of the being's anatomy is a camera.

5. The method of claim 4 , wherein the camera is a Red Green Blue (RGB) camera.

6. The method of claim 1 , wherein the source that generates the at least one computer-readable reconstruction of the being's anatomy is a depth sensor.

7. The method of claim 1 , wherein the source that generates the at least one computer-readable reconstruction of the being's anatomy is a combination of a depth sensor and a camera.

8. The method of claim 1 , wherein the source that generates the at least one computer-readable reconstruction of the being's anatomy is a laser scanning device.

Assignees

• Univ Johns Hopkins

Inventors

• Gordon Chad R
• Armand Mehran
• Grant Gerald T
• Liacouras Peter
• Murphy Ryan
• Wolfe Kevin

Classifications

• A61B2090/3979

  infrared · CPC title

• A61B2034/2057

  Details of tracking cameras · CPC title

• A61B2034/104

  Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring · CPC title

• A61B34/10

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

• A61F2/3094

  Designing or manufacturing processes · CPC title