Systems, methods, and devices for developing patient-specific medical treatments, operations, and procedures

Patent metadata

Field	Value
Publication number	US-11612436-B2
Application number	US-201916404276-A
Country	US
Kind code	B2
Filing date	May 6, 2019
Priority date	Dec 12, 2016
Publication date	Mar 28, 2023
Grant date	Mar 28, 2023

Abstract

Certain systems, methods, and devices described herein are configured to dynamically model a patient area for surgery and/or other treatment, dynamically identify one or more features and/or characteristics thereon such as the length and/or elasticity of the posterior longitudinal ligament (PLL), dynamically allow modification of the model, dynamically limit and/or assist in modification of the model, and/or dynamically generate guidelines for generation of patient-specific implants and/or treatment kits for a specific patient.

First claim

What is claimed is:

1. A computer-implemented method for producing a patient-specific spinal implant, the method comprising, by a computer system:
receiving, from a medical imaging system, one or more pre-operative medical images of a spine of a patient in each of a flexion, extension, and neutral posture;
displaying, on a graphical user interface, at least one image of the patient in each of the postures;
for each posture:
receiving, through the graphical user interface, a line drawn by a user, the line representing a path of a posterior longitudinal ligament of the spine; and
determining a length of the posterior longitudinal ligament of the spine based on the drawn line;

determining a value for ligament elasticity of the posterior longitudinal ligament based on a variance among the determined lengths of the posterior longitudinal ligament of the spine in each of the flexion, extension, and neutral postures;
determining a recommended limit of correction of the spine based at least in part on one or more of the determined lengths of the posterior longitudinal ligament and the value for ligament elasticity of the posterior longitudinal ligament;
receiving through the graphical user interface, user selection of a vertebra from one or more medical images of the spine of the patient;
receiving, through the graphical user interface, user input representing one or more modifications to the selected vertebra, wherein the one or more modifications comprise at least one or more of displacement or rotation of the selected vertebra;
dynamically determining whether the one or more modifications to the vertebra is within the determined recommended limit of correction of the spine;
dynamically updating the one or more pre-operative medical images, based on the user selection of the vertebra and the received one or more modifications to the selected vertebra, upon determination that the one or more modifications to the vertebra is within the determined recommended limit of correction of the spine;
generating one or more desired post-operative medical images of the spine based at least in part on the dynamically updated one or more pre-operative medical images;
determining one or more specifications of one or more patient-specific spinal implants for the patient based at least in part on the generated one or more desired post-operative medical images of the spine; and
transmitting the one or more specifications of the one or more patient-specific spinal implants to a spinal implant production system for producing the one or more patient-specific spinal implants,
wherein the computer system comprises a computer processor and an electronic storage medium.

2. The method of claim 1 , wherein the posterior longitudinal ligament is identified by the user tracing the posterior longitudinal ligament on the one or more pre-operative medical images of the spine.

3. The method of claim 1 , further comprising generating an alert, by the computer system, upon determination that the one or more modifications to the vertebra is not within the determined recommended limit of correction of the spine.

4. The method of claim 1 , wherein the one or more pre-operative medical images comprises an x-ray image of the spine of the patient in one or more of a flexion, extension, or neutral posture.

5. The method of claim 1 , wherein the one or more pre-operative medical images comprises one or more of an x-ray image, a CT image, or an MRI image.

6. The method of claim 1 , further comprising scaling the one or more pre-operative medical images.

7. The method of claim 6 , wherein the scaling is based at least in part on a reference point or object of the one or more pre-operative medical images.

8. The method of claim 1 , wherein the one or more patient-specific spinal implants comprises one or more of a spinal rod, intervertebral spacer, cage, or screw for use in spinal surgery.

9. A system for producing a patient-specific spinal implant, the system comprising:
one or more computer readable storage devices configured to store a plurality of computer executable instructions; and
one or more hardware computer processors in communication with the one or more computer readable storage devices and configured to execute the plurality of computer executable instructions in order to cause the system to:
receive one or more pre-operative medical images of a spine of a patient in each of a flexion, extension, and neutral posture;
display, on a graphical user interface, at least one image of the patient in each of the postures;
for each posture:
receive, through the graphical user interface, a line drawn by a user, the line representing a path of a posterior longitudinal ligament of the spine; and
determine a length of the posterior longitudinal ligament of the spine based on the drawn line;

determine a value for ligament elasticity of the posterior longitudinal ligament based on a variance among the determined lengths;
determine a recommended limit of correction of the spine based at least in part on one or more of the determined lengths of the posterior longitudinal ligament and the value for ligament elasticity of the posterior longitudinal ligament;
receive, through the graphical user interface, user selection of a vertebra from one or more medical images of the spine of the patient;
receive, through the graphical user interface, user input representing one or more modifications to the selected vertebra, wherein the one or more modifications comprise at least one or more of displacement or rotation of the selected vertebra;
dynamically determine whether the one or more modifications to the vertebra is within the determined recommended limit of correction of the spine;
dynamically update the one or more pre-operative medical images, based on the user selection of the vertebra and the received one or more modifications to the selected vertebra, upon determination that the one or more modifications to the vertebra is within the determined recommended limit of correction of the spine;
generate one or more desired post-operative medical images of the spine based at least in part on the dynamically updated one or more pre-operative medical images;
determine one or more specifications of one or more patient-specific spinal implants for the patient based at least in part on the generated one or more desired post-operative medical images of the spine; and
transmit the one or more specifications of the one or more patient-specific spinal implants to a spinal implant production system for producing the one or more patient-specific spinal implants.

10. The system of claim 9 , wherein the posterior longitudinal ligament is identified by the system based at least in part on user input, wherein the user input comprises tracing the posterior longitudinal ligament on the one or more pre-operative medical images of the spine.

11. The system of claim 9 , wherein the system is further caused to generate an alert upon determination that the one or more modifications to the vertebra is not within the determined recommended limit of correction of the spine.

12. The system of claim 9 , wherein the one or more pre-operative medical images comprises an x-ray image of the spine of the patient in one or more of a flexion, extension, or neutral posture.

13. The system of claim 9 , wherein the one or more pre-operative medical images comprises one or more of an x-ray image, a CT image, or an MRI image.

14. The system of claim 9 , wherein the system is further caused to scale the one or more pre-operative medical images.

15. The system of claim 14 , wherein th

Assignees

• Medicrea Int

Inventors

• Mcafee Paul C
• Dobbs Elliott
• Mosnier Thomas

Classifications

• G06T2207/10088

  Magnetic resonance imaging [MRI] · CPC title

• A61B2017/568

  produced with shape and dimensions specific for an individual patient · CPC title

• A61B90/39

  Markers, e.g. radio-opaque or breast lesions markers · CPC title

• A61B2017/564

  Methods for bone or joint treatment · CPC title

• A61B17/70

  Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant · CPC title