Granted Patent B2

US 12,376,906 · App. 18/536,546 · Granted Aug 5, 2025

Inventor: Jae Chul Koh (Seoul, KR)

Assignee: Korea University Research and Business Foundation

A61B34/10G09B9/00A61B2034/104A61B2034/105

Abstract

Claims (57)

1. A method for a surgical procedure simulation based on virtual reality (VR), the method being performed by a surgical procedure simulation apparatus and comprising:

receiving a computed tomography (CT) image of a body part of a subject of a surgical procedure;

placing the CT image of the body part in a 2D form into a virtual surgical space:

generating a stereoscopic image from the CT image of the body part;

generating a virtual three-dimensional (3D) body model corresponding to the body part from the stereoscopic image based on portions of the CT image having a Hounsfield unit (HU) value within a predetermined range; and

providing a surgical procedure simulation for spinal cord stimulation based on the virtual 3D body model,

wherein the providing of the surgical procedure simulation for spinal cord stimulation comprises:

outputting a virtual screen comprising the virtual 3D body model and a virtual C-arm apparatus;

virtually radiating virtual x-rays generated with a virtual x-ray generator at the virtual 3D body model configured as a set of data slices of the CT image virtually disposed between the virtual x-ray generator and a virtual x-ray sensor;

detecting at least one point in the 3D body model at which the virtual x-rays from the virtual x-ray generator meets a portion of the 3D body model based on sensing of the virtual x-rays by the virtual x-ray sensor;

generating a virtual X-ray image of the body part based on the detecting the at least one point:

outputting the virtual X-ray image to a virtual monitor included in the virtual C-arm apparatus;

providing a surgical procedure simulation of loss of resistance (LOR) using a syringe according to a selection of a user wearing the surgical procedure simulation apparatus within the virtual screen; and

providing, when the surgical procedure simulation of LOR is completed, a surgical procedure simulation for lead insertion into a virtual spinal cord part included in the virtual 3D body model.

2. The method of claim 1 , wherein the providing of the surgical procedure simulation of LOR comprises:

providing an interface for adjusting an insertion direction of the syringe.

3. The method of claim 1 , wherein the providing of the surgical procedure simulation for lead insertion comprises:

generating a virtual X-ray image indicating a degree to which a lead is inserted into the virtual spinal cord part; and

outputting the virtual X-ray image to a virtual monitor included in the virtual C-arm apparatus.

4. The method of claim 1 , wherein the providing of the surgical procedure simulation for lead insertion comprises:

providing an interface for adjusting a direction of the lead insertion.

5. The method of claim 1 , further comprising:

outputting an interface for adjusting a C-arm based on a hand motion of the user.

6. The method of claim 1 , further comprising:

providing an interface configured to output a gradient value and a rotation angle value of a C-arm.

7. The method of claim 1 , further comprising:

outputting, when the surgical procedure simulation for lead insertion is completed, a virtual screen comprising result data of the surgical procedure simulation for spinal cord stimulation.

8. A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform the method of claim 1 .

9. A surgical procedure simulation apparatus comprising:

a memory comprising instructions; and

a processor connected to the memory and configured to execute the instructions,

wherein, when the instructions are executed by the processor, the processor is configured to:

receive a computed tomography (CT) image of a body part of a subject of a surgical procedure;

place the CT image of the body part in a 2D form into a virtual surgical space;

generate a stereoscopic image from the CT image of the body part;

generating a virtual three-dimensional (3D) body model corresponding to the body part from the stereoscopic image based on portions of the CT image having a Hounsfield unit (HU) value within a predetermined range;

provide a surgical procedure simulation for spinal cord stimulation based on the virtual 3D body model;

output a virtual screen comprising the virtual 3D body model and a virtual C-arm apparatus;

virtually radiate virtual x-rays generated with a virtual x-ray generator at the virtual 3D body model configured as a set of data slices of the CT image virtually disposed between the virtual x-ray generator and a virtual x-ray sensor;

detect at least one point in the 3D body model at which the virtual x-rays from the virtual x-ray generator meets a portion of the 3D body model based on sensing of the virtual x-rays by the virtual x-ray sensor;

generate a virtual X-ray image of the body part based on the detecting the at least one point;

output the virtual X-ray image to a virtual monitor included in the virtual C-arm apparatus;

provide a surgical procedure simulation of loss of resistance (LOR) using a syringe according to a selection of a user wearing the surgical procedure simulation apparatus within the virtual screen, and

provide, when the surgical procedure simulation of LOR is completed, a surgical procedure simulation for lead insertion into a virtual spinal cord part included in the virtual 3D body model.

10. The apparatus of claim 9 , wherein the processor is configured to:

provide an interface for adjusting an insertion direction of the syringe.

11. The apparatus of claim 9 , wherein the processor is configured to:

generate a virtual X-ray image indicating a degree to which a lead is inserted into the virtual spinal cord part; and

output the virtual X-ray image to a virtual monitor included in the virtual C-arm apparatus.

12. The apparatus of claim 9 , wherein the processor is configured to:

provide an interface for adjusting a direction of the lead insertion.

13. The apparatus of claim 9 , wherein the processor is configured to:

output an interface for adjusting a C-arm based on a hand motion of the user.

14. The apparatus of claim 9 , wherein the processor is configured to:

provide an interface configured to output a gradient value and a rotation angle value of a C-arm.

15. The apparatus of claim 9 , wherein the processor is configured to:

output, when the surgical procedure simulation for lead insertion is completed, a virtual screen comprising result data of the surgical procedure simulation for spinal cord stimulation.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (11)