Volume data visualization method for surgical navigation based on PPC (Panel Personal Computer)

A tablet computer, surgical navigation technology, applied in the field of medical equipment, can solve the problems of expensive equipment, complicated operation, and influence of doctor's judgment.

Active Publication Date: 2014-07-09
FUDAN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional surgical navigation system uses virtual reality technology to superimpose virtual surgical instruments on the patient's image space, and doctors perform surgical operations by observing the navigation screen; this kind of virtual reality technology allows doctors to immerse themselves in the virtual environment created by the computer from the perspective of sensory effects At the same time, in order to observe the position of the surgical instruments relative to the patient during the operation, the doctor has to switch the field of view back and forth between the patient's surgical site and the navigation screen. There is a certain distance, this kind of navigation mode is not conducive to the doctor to concentrate on the surgical site for operation, and at the same time brings errors to

Method used

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  • Volume data visualization method for surgical navigation based on PPC (Panel Personal Computer)
  • Volume data visualization method for surgical navigation based on PPC (Panel Personal Computer)
  • Volume data visualization method for surgical navigation based on PPC (Panel Personal Computer)

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Embodiment 1

[0044] Such as Figure 1~5 As shown, adopt the method for surgical navigation based on any section visualization of tablet computer of the present invention, through the following steps, carry out clinical practice:

[0045] (1) Install the adapter that can be used for infrared tracking on the tablet computer, use the optical locator to track the three reflective balls on the adapter, establish a three-dimensional adapter coordinate system according to the position coordinates of the three reflective balls, and automatically obtain the optical positioning The transformation T between the world coordinate system where the instrument is located and the adapter coordinate system aw (Such as Figure 4 shown), specifically expressed as a 4×4 homogeneous matrix M 1 ;

[0046] (2) Use the navigation probe and space locator to obtain the four corner points of the probe tip on the tablet computer screen ( image 3 The coordinates of points A, B, C, D) in , are the coordinates of th...

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Abstract

The invention relates to the field of medical equipment, and relates to a volume data visualization method for surgical navigation based on a PPC (Panel Personal Computer). A navigation system adopted in the method mainly consists of the PPC, a navigator, an auxiliary infrared position indicator, a reference frame, an adaptor and the like, wherein point-to-point real-time communication can be realized between the PPC and the navigator through a wireless communication technology, and navigation information is transmitted and displayed on the PPC. A main navigation model realized by the method is that the image information of a cross section, a vertical plane and a coronal plane corresponding to a navigation probe point can be displayed on the PPC in real time; furthermore, a section image obtained by intersecting the extending surface of the PPC and the head of a patient is displayed in real time through the PPC. According to the method, standard section images can be displayed, any section image can be displayed through the position of the PPC, tumours and lesions can be auxiliary positioned by doctors, and convenience and help can be brought for surgical operation.

Description

technical field [0001] The invention belongs to the field of medical devices and relates to a volume data visualization method for operation navigation based on a tablet computer. Background technique [0002] The prior art discloses that neuronavigation systems can assist doctors in planning surgical approaches, determining the location and boundaries of lesions, and avoiding damage to surrounding normal tissues and organs. The neuronavigation system has become an indispensable surgical device in the field of neurosurgery; its working principle is to establish an image-guided space based on the patient's own CT, MRI and other imaging data before surgery, and compare it with the real The space where the patient is located is registered; the space locator is used to track the position of the surgical instrument in real time during the operation, and it is converted into the image space, and the virtual surgical instrument is generated and displayed superimposed on the patient...

Claims

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Application Information

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IPC IPC(8): A61B19/00G06F19/00
Inventor 宋志坚邓薇薇李舫王满宁姚德民
Owner FUDAN UNIV
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