Surgical navigation method and system

A surgical navigation and operating room technology, applied in the medical field, can solve problems such as poor image quality, low resolution, and low cost, and achieve the effects of improving accuracy, facilitating operation, and reducing medical accidents

Active Publication Date: 2013-10-23
珠海中科先进技术研究院有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ultrasound equipment has fast imaging, low cost, and no radiation, but the image quality is poor and the resolution is low

Method used

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  • Surgical navigation method and system
  • Surgical navigation method and system

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Experimental program
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Embodiment Construction

[0051] Such as figure 1 As shown, it is a flow chart of the steps of the surgical navigation method of an embodiment, including the following steps:

[0052] Step S101, before the operation, the preset breathing point of the human body is obtained through the breathing gating method.

[0053] In this embodiment, the preset breathing point is the point of maximum inhalation. Because the patient can hold their breath for a long time at this time, and it is easier to control the same breathing stage multiple times, so as to reduce the impact of breathing on subsequent organ imaging.

[0054] Step S102, at the preset breathing point, collect the three-dimensional image of the organ by way of MRI or CT, and display it in the preoperative coordinate system.

[0055] Because there is more time before the operation, MRI or CT and other clear imaging methods are used here for image acquisition.

[0056] Step S103, segmenting the 3D images of organs according to different tissues.

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Abstract

A surgical navigation method comprises collecting the three-dimensional images of an organ through nuclear magnetic resonance or CT (computed tomography) before an operation; receiving a planned puncture trace input by a user and displaying the planned puncture trace in the three-dimensional images; collecting the three-dimensional images of the organ through an ultrasonic device during the operation, and converting the three-dimensional images into an operating room coordinate system through a tracer; registering the three-dimensional images before the operation with the three-dimensional images during the operation to obtain final displacement vectors and rotation matrixes; according to the final displacement vectors and the rotation matrixes, converting the three-dimensional images and the planned puncture trace into the operating room coordinate system for displaying; obtaining the motion trace of a puncture needle utilized during the operation through the tracer and displaying the motion trace, the three-dimensional images before the operation and the planned puncture trace in the operating room coordinate system synchronously. The invention also provides a corresponding surgical navigation system. According to the surgical navigation system, blurred images during the operation are replaced by clear images before the operation to provide great help to aspects such as operation, time and image clearness.

Description

technical field [0001] The invention relates to the medical field, in particular to a navigation method and system in puncture operations. Background technique [0002] Percutaneous nephroscopic surgery refers to the process of using a puncture needle to puncture through the skin surface to reach the designated target inside the kidney. It is a key step in many minimally invasive renal surgeries (such as renal stone removal surgery and radiofrequency ablation of renal tumors), and is directly related to surgical procedures. success and effect. [0003] Physicians rely on intraoperative medical imaging to ensure that the puncture is placed correctly and to avoid damaging adjacent normal tissue. Some surgical protocols use C-arm imaging systems or intraoperative magnetic resonance as intraoperative imaging methods. However, although the C-arm imaging system has good image quality, it will cause radiation damage to doctors and patients. Although the image quality of intraope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B19/00
Inventor 陈垦李志成辜嘉
Owner 珠海中科先进技术研究院有限公司
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