Computer-assisted planning and execution system

Patent metadata

Field	Value
Publication number	US-11328813-B2
Application number	US-202017070327-A
Country	US
Kind code	B2
Filing date	Oct 14, 2020
Priority date	Nov 29, 2013
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A method for computer-assisted planning of a transplant surgery is provided. The method includes obtaining a computer-readable representation of a donor and recipient skeletal fragment; determining surgical cutting planes on the computer-readable representation of the donor skeletal fragment from which a portion of the donor skeletal fragment from the computer-readable representation of the donor skeletal fragment will be harvested; determining virtual cutting guides; performing a virtual osteotomy to separate the portion of the donor skeletal fragment from the computer-readable representation of the donor skeletal fragment from a remainder portion of the donor skeletal fragment based on a position of the virtual cutting guides that are attached to the computer-readable representation of the donor skeletal fragment; positioning the donor skeletal fragment within a transplant region of the recipient skeletal fragment; and creating a hybrid computer-readable representation comprising the recipient skeletal fragment and the portion of the donor skeletal.

First claim

We claim:

1. A computer-implemented method for computer-assisted planning of craniomaxillofacial surgery, the method comprising:
intraoperatively studying a hybrid computer-readable representation comprising a computer-readable representation of a recipient skeletal fragment and a computer-readable representation of an implant, the hybrid computer-readable representation being created by:
obtaining the computer-readable representation of the implant;
obtaining a computer-readable representation of a recipient skeletal fragment;
positioning the computer-readable representation of the implant within a region of the computer-readable representation of the recipient skeletal fragment;
creating the hybrid computer-readable representation comprising the computer-readable representation of the recipient skeletal fragment and the computer-readable representation of the implant during or after the positioning;

intraoperatively tracking the implant and the recipient skeletal fragment; and
fixating the implant to the recipient skeletal fragment.

2. The computer-implemented method of claim 1 , wherein intraoperatively tracking includes providing a reference unit for real-time surgical navigation assistance.

3. The computer-implemented method of claim 1 , further including intraoperatively navigating placement of cutting guides.

4. The computer-implemented method of claim 1 , wherein tracking includes visual tracking.

5. The computer-implemented method of claim 1 , wherein of intraaoperatively tracking includes tracking a final three dimensional placement of the implant.

6. The computer-implemented method of claim 1 , wherein the implant is a craniofacial implant.

7. The computer-implemented method of claim 1 , wherein the craniomaxillofacial surgery is a cranioplasty.

8. The computer-implemented method of claim 1 , wherein the craniomaxillofacial surgery is a single-stage implant cranioplasty.

9. The computer-implemented method of claim 1 , wherein the craniomaxillofacial surgery is a craniomaxillofacial reconstructive surgery.

10. The computer-implemented method of claim 1 , wherein the craniomaxillofacial surgery is an orthognathic surgery.

Assignees

• Univ Johns Hopkins
• The Us Secretary Of Defense
• Us Navy

Inventors

• Gordon Chad
• Armand Mehran
• Murphy Ryan
• Grant Gerald
• Liacouras Peter
• Wolfe Kevin
• Basafa Ehsan

Classifications

• Y02A90/10

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• A61B2034/2051

  Electromagnetic tracking systems · CPC title

• A61B2034/105

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

• A61B2034/108

  Computer aided selection or customisation of medical implants or cutting guides · CPC title

• A61B34/10

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