Thread lift plastic surgery simulation system

A plastic surgery and simulation system technology, applied in the field of virtual surgery system modeling, can solve the problems of few plastic surgery training systems and few simulation systems, and achieve the effects of reducing costs, reducing time and memory usage, and improving the success rate

Inactive Publication Date: 2016-08-31
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The method of using virtual surgery system for surgical training can effectively solve the above disadvantages, but most of the current virtual surgery systems are mainly for surgical treatment, such as virtual tumor cutting surgery

Method used

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  • Thread lift plastic surgery simulation system
  • Thread lift plastic surgery simulation system
  • Thread lift plastic surgery simulation system

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Experimental program
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specific Embodiment approach 1

[0025] Specific implementation mode one: as figure 1 As shown, a thread embedding lifting plastic surgery simulation system described in this embodiment includes: human face geometric modeling module 1, human facial tissue physical modeling module 2, collision detection module 3, visualization module 4, force feedback module 5 , Auxiliary module 6.

[0026] The human face geometric modeling module 1 is used to generate a virtual three-dimensional geometric model of the human face, and provide users with surgical training objects in a virtual environment. The geometric modeling module 1 of the human face is also used to import the two-dimensional tomographic image data of the human face, and perform threshold screening, interactive segmentation and three-dimensional surface model reconstruction of the two-dimensional tomographic image data of the human face. The human face geometric modeling module 1 is also used for solid mesh division (tetrahedral mesh) of the three-dimensio...

specific Embodiment approach 2

[0032] Specific implementation mode two: as figure 2 As shown, the concrete process that the human facial geometry modeling module 1 described in this embodiment realizes its function is:

[0033] 1) Three-dimensional reconstruction of the geometric model of the human face

[0034] First, import the two-dimensional tomographic image data of the human face. The two-dimensional tomographic image can be in the DICOM format of CT or MRI, or in common formats such as jpg and png. Then based on the MITK class library, according to the characteristics of different gray value ranges of bone tissue and soft tissue in the imported image data, threshold screening is performed to initially segment the bone tissue and soft tissue parts in the two-dimensional tomographic image. Interactive segmentation is then performed to manually erase and fill in parts of the image where the tissue does not match the actual anatomy. Finally, based on the MC algorithm, a three-dimensional surface model...

specific Embodiment approach 3

[0040] Specific implementation mode three: as image 3 As shown, the concrete process that the human facial tissue physical modeling module 2 described in this embodiment realizes its function is:

[0041] In the present invention, the bone tissue of the face of the human body is considered as a rigid body without deformation. The biomechanical model of the soft tissue deformed before being punctured by the needle adopts the Mooney-Rivlin hyperelastic model, and the specific form of the soft tissue model is shown in formula (1):

[0042] (1)

[0043] where W is the strain energy density function; and is the model material constant; and are the first and second principal invariants of the strain tensor.

[0044] Combined with formula (1), the grid node displacement of human facial soft tissue under the external load and constraint conditions is calculated by the finite element method, and the specific calculation is realized by C++ language programming on the VS pl...

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Abstract

The invention provides a thread lift plastic surgery simulation system and relates to the technical field of a virtual surgery system, aiming at enabling a user to really perceive biomechanical properties of facial soft tissues of human bodies and get familiar with steps of a thread lift plastic surgery so as to improve surgery training effect and a surgery success rate. The thread lift plastic surgery simulation system comprises a human body facial geometrical modeling model, a human body facial tissue physical modeling model, a collision detection module, a visualization module, a force feedback module and an auxiliary module. According to the scheme provided by the invention, geometrical modeling, physical modeling, collision detection, force feedback calculation, visualization and the like of virtual human body facial tissues through independent programming based on a Visual Studio development platform. With the adoption of the thread lift plastic surgery simulation system, the complexity degree and the occupied internal memory of the surgery system can be reduced.

Description

technical field [0001] The invention relates to a virtual surgery system modeling technology, in particular to the development field of a thread embedding lifting plastic surgery simulation system. Background technique [0002] The anti-wrinkle plastic surgery that uses bio-protein threads to lift the human face can effectively alleviate the aging problem of the human face, make people visually younger, and increase people's self-confidence. At present, surgical techniques related to thread embedding lifting and plastic surgery are relatively mature in foreign countries, but not popularized in China. Line Lifting Plastic Surgery Technique. The method of inviting foreign doctors for surgical training has a short training period, which makes it difficult for new doctors to master the technique of thread embedding and lifting plastic surgery, resulting in unsatisfactory plastic surgery results. Although domestic doctors go abroad for surgical training, the training effect is ...

Claims

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Application Information

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IPC IPC(8): G09B9/00
CPCG09B9/00
Inventor 王沫楠安贤俊王新宇纪元新孙建刚
Owner HARBIN UNIV OF SCI & TECH
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