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Spinal minimally invasive surgery navigation method and system based on augmented reality

A minimally invasive surgery and augmented reality technology, applied in the field of surgical navigation, can solve the problems of invisible surgery scenes, visual fatigue of doctors, and increase the difficulty of surgery, so as to avoid surgery errors, enhance comfort, and improve the effect of surgery success rate.

Inactive Publication Date: 2019-06-25
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, doctors can observe any anatomical structure superimposed on the patient's body in real time by wearing an HMD. During the operation, only the scene captured by the camera can be seen, and the real operation scene cannot be seen at all, which will greatly increase the risk of surgery
Most operations are more complicated and the operation time is relatively long. If the doctor wears the head-mounted display for a long time, it will bring discomfort to the doctor and affect the operation; at the same time, the method of enhancing the lens needs to be placed between the doctor and the operation area , which will greatly limit the doctor's operation and increase the difficulty of the operation
During the operation, the doctor needs to observe the displayed information through the enhanced lens and the displayed information reflected in the enhanced lens at the same time, so it is easy to cause visual fatigue to the doctor

Method used

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  • Spinal minimally invasive surgery navigation method and system based on augmented reality

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Embodiment 1

[0041] Such as figure 1 As shown, it is an augmented reality-based navigation method for spinal minimally invasive surgery in Embodiment 1 of the present invention. The method includes the following steps:

[0042] S1. Reconstructing a virtual three-dimensional image of the patient's spine.

[0043] It specifically includes: reconstructing a virtual three-dimensional image of the patient's spine based on a set of CT images.

[0044] S2. Registering the virtual three-dimensional image with the patient space to obtain the position of the virtual lesion point in the virtual three-dimensional image in the patient space.

[0045] Wherein, registering the virtual 3D image with the patient space specifically includes: respectively setting 4 non-coplanar marker points in the virtual 3D image and the patient space, and aligning the 4 marker points in the virtual 3D image with the 4 marker points in the patient space. The two marker points coincide respectively, that is, the registrat...

Embodiment 2

[0052] A navigation system for spinal minimally invasive surgery based on augmented reality, which includes:

[0053] The image reconstruction module is used to reconstruct the virtual three-dimensional image of the patient's spine;

[0054] It specifically includes: reconstructing a virtual three-dimensional image of the patient's spine based on a set of CT images.

[0055] The first registration module is used to register the virtual three-dimensional image with the patient space to obtain the position of the virtual lesion point in the virtual three-dimensional image in the patient space;

[0056] Wherein, registering the virtual 3D image with the patient space specifically includes: respectively setting 4 non-coplanar marker points in the virtual 3D image and the patient space, and aligning the 4 marker points in the virtual 3D image with the 4 marker points in the patient space. The two marker points coincide respectively, that is, the registration is realized.

[0057]...

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Abstract

The invention discloses a spinal minimally invasive surgery navigation method and system based on augmented reality. The method comprises the following steps: reconstructing a virtual three-dimensional image of the spine of a patient; registering the virtual three-dimensional image with the patient space to obtain the position of a virtual lesion in the virtual three-dimensional image; projectinga surgical path defined in the virtual three-dimensional image into the patient space; generating a DRR image of a preoperative CT image and conducting real-time registration with an intraoperative X-ray image to determine the actual lesion point; controlling a robot to clamp a surgical instrument to perform the operation on the actual lesion point; obtaining a real surgical scene in real time during the operation, and outputting the acquired video signal on a 3D display. According to the method and system, the preoperative surgical path planning can be achieved to accurately locate the lesionpoint and achieve real-time monitoring of the operation. Real-time tracking is achieved during the operation to avoid operation errors and improve the operation success rate.

Description

technical field [0001] The invention relates to the technical field of surgical navigation, in particular to a navigation method and system for minimally invasive spinal surgery based on augmented reality. Background technique [0002] Surgical navigation IGS (Image Guided Surgery) refers to the use of medical imaging equipment and computer imaging methods by doctors to perform three-dimensional reconstruction and visualization processing on patients' multi-modal image data before surgery, to obtain three-dimensional models, and to formulate reasonable and quantitative surgical plans , to carry out preoperative simulation; through the registration operation during the operation, the 3D model, the actual body position of the patient, and the real-time position of the surgical instrument in space are unified in one coordinate system, and the position of the surgical instrument in space is real-time monitored using the 3D positioning system. Acquisition and display, the doctor ...

Claims

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Application Information

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IPC IPC(8): A61B34/10A61B34/20A61B34/00A61B34/30A61B90/00
Inventor 张峰峰陈龙孙立宁
Owner SUZHOU UNIV
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