Orthopedic surgery operation simulation system on the basis of force feedback

A technology of orthopedic surgery and surgical simulation, applied in the field of virtual surgery system development, can solve the problems of high cost and complexity

Inactive Publication Date: 2016-02-03
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This modeling method improves the simulation accuracy of the virtual surgery system, but the whole process is implemented with several sets of existing commercial software, so the cost and complexity of the system are high

Method used

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  • Orthopedic surgery operation simulation system on the basis of force feedback
  • Orthopedic surgery operation simulation system on the basis of force feedback
  • Orthopedic surgery operation simulation system on the basis of force feedback

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Experimental program
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specific Embodiment approach 1

[0092] Specific implementation mode one: as figure 1 and 2 As shown, a force feedback-based orthopedic surgery simulation system in this embodiment includes: a virtual orthopedic surgery simulation subsystem 1 , an input module 2 , a force feedback device 3 , and a display device 4 .

[0093]The virtual orthopedic surgery simulation subsystem 1 is used to realize the geometric modeling of human tissue, mesh division, biomechanical modeling and calculation, collision detection, cutting and suturing and dynamic visualization, and force feedback calculation of human tissue required in the surgical simulation process; The orthopedic surgery simulation subsystem 1 is also used to receive and process the two-dimensional tomographic image information of the patient imported in the input module 2; the virtual orthopedic surgery simulation subsystem 1 is also used to calculate the feedback force required by the force feedback device 3, that is, the human body Force feedback to simulat...

specific Embodiment approach 2

[0111] In this embodiment, the specific process of the virtual orthopedic surgery simulation subsystem 1 realizing its functions is as follows:

[0112] 1) Geometric modeling module

[0113] The geometric modeling module can choose VTK, MITK and other tools for development. Such as image 3 As shown, the process of geometric modeling involves steps such as threshold screening, interactive segmentation, and 3D reconstruction. The process of threshold screening adopts the threshold segmentation algorithm to initially segment the patient's bone, cartilage, muscle, fat, skin and other tissues. The interactive segmentation process uses the variable filling algorithm of polygons. Users can combine anatomical knowledge and experience to manually erase and repair each picture to improve the quality and speed of image segmentation. The process of 3D reconstruction of the model can use the currently popular MarchingCube algorithm or DividingCube algorithm to generate a 3D surface mod...

specific Embodiment approach 3

[0163] In the present embodiment, the concrete process that described input module 2 realizes its function is:

[0164] 1) Image data input unit

[0165] CT / MRI images can be transmitted through the optical drive or USB interface of the main computer box, and then imported into the virtual orthopedic surgery simulation subsystem to prepare for geometric modeling.

[0166] 2) User operation unit

[0167] The realization of this unit can be completed by developing an operation interface of a virtual orthopedic surgery simulation subsystem under the MFC platform. On the operation interface, the user inputs operation-related information through computer input devices such as keyboards and mice. The operation-related information may include the patient’s name, gender, age, case, etc. The operation-related information may also include operation steps, operation-related precautions, examination Users can also switch the viewing angle, size, transparency, etc. of the virtual human t...

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Abstract

The present invention provides an orthopedic surgery operation simulation system on the basis of force feedback, relating to the field of the virtual operation system development technology. The objective of the present invention is to allow users to truly sense biomechanical characteristics of human tissues so that the effect of operation training and the success rate of operations are improved. The orthopedic surgery operation simulation system comprises a virtual orthopedic operation simulation subsystem, an input module, a force feedback module and a display module. The virtual orthopedic operation simulation subsystem is configured to realize geometric modeling, mesh generation, biomechanics modeling and calculation thereof, collision detection, cutting and stitching and dynamic state visualization, force feedback calculation and the like of the human tissues required in the operation simulation process. According to the scheme of the invention, geometric modeling, mesh generation, biomechanics modeling and calculation thereof, deformation cutting, force feedback calculation and the like of virtual human tissues may be realized through independent programming on the basis of a visual studio development platform. The cost and the complexity of an operation system may be reduced.

Description

technical field [0001] The invention relates to a force feedback-based orthopedic surgery simulation system and relates to the field of virtual surgery system development. Background technique [0002] In recent years, the number of people suffering from orthopedic diseases has been increasing, which has attracted many experts at home and abroad to pay attention to the treatment of orthopedic diseases. At present, in the field of orthopedic surgery, there are many types, fast updates, strong specialization, and complicated surgical positions, which make it difficult for young new doctors to quickly master the technology of orthopedic surgery. Traditional medical training is mainly carried out through oral and video teaching, or experiments on corpses and animals. However, this method has the disadvantages of being unable to reuse experimental objects, long training period, high training cost, and ethical issues. Moral controversy and other shortcomings. [0003] With the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T19/00G09B9/00
Inventor 王沫楠安贤俊
Owner HARBIN UNIV OF SCI & TECH
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