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Drilling operation simulation method and apparatus

A simulation method and surgical technology, applied in the field of virtual reality, can solve the problems of not considering the different material properties of bones in different parts, and the lack of authenticity and accuracy of the simulation, so as to achieve the effect of improving the authenticity and accuracy

Inactive Publication Date: 2017-07-04
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a drilling operation simulation method and a virtual reality system to solve the problem that different material properties of bones in different parts are not considered in the current drilling operation simulation, and the simulation lacks authenticity and accuracy.

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  • Drilling operation simulation method and apparatus
  • Drilling operation simulation method and apparatus

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Embodiment Construction

[0018] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0019] figure 1 The implementation process of the simulation method for drilling surgery provided by the embodiment of the present invention is shown, and the details are as follows:

[0020] In S101, a three-dimensional bone model is initialized, the data structure of the three-dimensional bone model includes surface mesh data and voxel data, the voxel data includes voxel materials, and the mate...

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Abstract

The present invention is applied to the technical field of virtual reality, and provides a drilling operation simulation method and a virtual reality system. The method comprises: initializing a three-dimensional skeletal model, wherein the data structure of the three-dimensional skeleton model comprises surface mesh data and voxel data, the voxel data comprises a voxel material, and the voxel material comprises the compact bone and the cancellous bone; in the drilling simulation process, based on dFn = (Kn1t1 + Kn2t2)d[omega] and dFf = (Kf1t1 + Kf2t2)d[omega], carrying out simulation on the force of a drill bit; and rendering and refreshing the three-dimensional skeletal model in real time according to the cutting process of the drill bit. According to the technical scheme provided by the present invention, different material properties of different parts of the bone are distinguished, the non-uniformity of the bone material is well processed, and in the process of carrying out virtual reality on the drilling operation, the authenticity and accuracy of the simulation are enhanced.

Description

technical field [0001] The invention belongs to the field of virtual reality technology, in particular to a simulation method and device for drilling surgery. Background technique [0002] Drilling is a basic skill in surgery. Tools of different structures and sizes are used in drilling, but the purpose is to drill small holes and then put screws into them. Cause complications or other serious consequences, for example, in a surgical operation to treat a broken bone, the doctor needs to drill several holes and fix the broken part with screws, which requires great care in this case because the broken part is inherently fragile , and the drilling path must be strictly followed to avoid secondary injuries; another example is the implantation of pedicle screws. There are many important nerves and blood vessels in the surgical site. Even a very small deviation may cause unforeseen medical problems. ACCIDENT. Therefore, in surgical operations, the accuracy of drilling is require...

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Application Information

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IPC IPC(8): G06T15/00G06T17/30G06F19/00
Inventor 王琼秦璟刘效仿王平安
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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