A real-time assistance system for dental surgery based on augmented reality 3D imaging

A three-dimensional imaging and augmented reality technology, applied in medical images, image data processing, details involving processing steps, etc., can solve problems such as interactive matching errors, lack of intuitive images, and increase the difficulty of operation, achieving high precision and increasing surgery Accuracy, Enhanced Energy Efficiency

Active Publication Date: 2021-11-30
刘春煦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this technology solves the problem of not being able to see the inside of the tissue during the operation, the doctor has to constantly switch from the patient to the screen, which increases the difficulty of the operation, and the two-dimensional image is also lacking in intuition. In the process of location, surgical instrument location, and medical imaging, errors in interactive matching are more likely to occur

Method used

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  • A real-time assistance system for dental surgery based on augmented reality 3D imaging
  • A real-time assistance system for dental surgery based on augmented reality 3D imaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 and figure 2 As shown, a dental surgery real-time assistance system based on augmented reality three-dimensional imaging includes: a medical imaging system, a motion capture system, a data processing system and an AR display system; the data processing system includes: a three-dimensional reconstruction module, an operation planning module, Match positioning module and motion tracking module;

[0046] The medical imaging system collects surgical requirements and 3D medical imaging data of patients, and sends them to the data processing system;

[0047] The three-dimensional reconstruction module performs three-dimensional reconstruction on various tissues of the surgical site based on the surgical requirements and the patient's three-dimensional medical image data to obtain a three-dimensional virtual image, and the three-dimensional reconstruction device sends the three-dimensional virtual image to the operation planning module;

[0048] The operati...

Embodiment 2

[0071] This example takes the most common oral implant surgery in dentistry as an example to illustrate the oral implant surgery assisted by AR augmented reality real-time 3D imaging:

[0072] Take the CBCT of the patient, perform three-dimensional reconstruction of the teeth, alveolar bone, inferior alveolar canal, and maxillary sinus cavity in the CBCT, and perform different renderings of different tissues;

[0073] The surgery planning module uses 3shape Implant Studio to carry out implant surgery planning simulation, select the finished 3D model of the dental implant in the database, and put it into the 3D reconstruction of the alveolar bone at a suitable position, angle, and depth. Open the adjacent teeth and nerve canal to achieve the most ideal implant site. Then the 3D reconstructed model and the implant model of implant surgery planning are rendered in different colors and exported to a common 3D format .obj file.

[0074] Fix the scanning motion capture system so th...

Embodiment 3

[0082] This example uses the most complex orthognathic surgery in dentistry to illustrate the orthognathic surgery assisted by AR augmented reality real-time 3D imaging.

[0083] Take the CBCT of the patient, perform three-dimensional reconstruction of the teeth, alveolar bone, inferior alveolar canal, and maxillary sinus cavity in the CBCT, and perform differential rendering of different tissues;

[0084] Orthognathic surgery planning: use the industrial 3D modeling software Materialize Magics for surgical planning, first arrange the relative positions of the dentition to achieve the clinical ideal occlusal state, and meet the better side aesthetic standards, and then compare the front and rear alignment jaws, Avoid important blood vessels and nerves, find the ideal osteotomy plane, use the cutting tool to cut and move the front jaw to the position of the aligned dentition, and then make the 3D reconstruction model and the implant model of the implant surgery plan different co...

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Abstract

A real-time assistance system for dental surgery based on augmented reality three-dimensional imaging disclosed in the present invention uses a medical imaging system, a three-dimensional reconstruction module, a surgery planning module, a matching positioning module, a motion capture system and an AR display system to assist in the whole process of surgery, Real-time 3D display and dynamic capture and tracking. When the patient's body position or tissue movement, such as shaking the head, opening the mouth, etc., the 3D virtual image will also change its position in real time to achieve a complete "attachment" effect, and at the same time through the AR display system. The 3D real The image and the 3D virtual image are displayed on the same interface in real time, so that the operation process can realize the "see-through" function, and it is easier to find the lesion site, the ideal implantation site or the ideal incision and resection angle direction during the operation; Precision, dentistry and maxillofacial surgery have very high precision requirements, and the auxiliary system provided by the present invention has higher precision than traditional surgery.

Description

technical field [0001] The invention relates to the technical field of dental surgery assistance, in particular to a real-time dental surgery assistance system based on augmented reality three-dimensional imaging. Background technique [0002] At present, all surgical techniques, including dental surgery, are performed under the naked eye, and now there are techniques that use magnifying glasses or endoscopes, but during the operation, the specific structure and actual structure of the tissue inside cannot be known. In many cases, it is necessary to rely on the experience of the doctor to perform the operation; this is also the reason why the experience of the doctor is very valuable, and it is difficult for young doctors to be trusted. For example, tumor resection requires careful stripping of external normal tissues to determine the distance to the tumor; such as dental implant surgery, it is necessary to judge the height and width of the alveolar bone based on experience,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G16H30/00G06T19/00
CPCG06T19/003G06T2200/08G16H30/00
Inventor 刘春煦
Owner 刘春煦
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