Research on cutting algorithm based on local mesh projection in virtual surgery simulation

Author(s):  
Xiufen Ye ◽  
Jian'guo Zhang ◽  
Zhenhua Wang ◽  
Yuanke Zhang
2016 ◽  
Vol 9 (3) ◽  
pp. 271-276 ◽  
Author(s):  
Giorgio Novelli ◽  
Marco Gramegna ◽  
Gabriele Tonellini ◽  
Gabriella Valente ◽  
Pietro Boni ◽  
...  

Osteoblastoma is a benign tumor of bone, representing less than 1% of bone tumors. Craniomaxillofacial localizations account for up to 15% of the total and frequently involve the posterior mandible. Endo-orbital localization is very rare, with most occurring in young patients. Very few of these tumors become malignant. Orbital localization requires radical removal of the tumor followed by careful surgical reconstruction of the orbit to avoid subsequent aesthetic or functional problems. Here, we present a clinical case of this condition and describe a surgical protocol that uses and integrates state-of-the art technologies to achieve orbital reconstruction.


2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Jing-Xin Zhao ◽  
Li-Cheng Zhang ◽  
Xiu-Yun Su ◽  
Zhe Zhao ◽  
Yan-Peng Zhao ◽  
...  

Purpose. The optimal closed reduction technique for unstable pelvic fractures remains controversial. The purpose of this study is to verify the effectiveness and report early experiences with the reduction of unstable pelvic fractures using a computer-aided pelvic reduction frame. Methods. From January 2015 to August 2016, a total of 10 patients with unilateral unstable pelvic fractures were included in this study. The surgical reduction procedure was based on the protocol of the computer-aided pelvic reduction frame that we proposed in a previous work. The quality of the reductions achieved using this system was evaluated with residual translational and rotational differences between the actual and virtual reduction positions of pelvis. The duration of the operation was recorded for quality control. Results. The mean times required to set up the frame, to complete the virtual surgery simulation, and to reduce the unstable pelvic fractures were 10.3, 20.9, and 7.5 min, respectively. The maximum residual translational and rotational displacements were less than 6.5 mm and 3.71 degrees, respectively. Conclusions. This computer-aided reduction frame can be a useful tool for the speedy and accurate reduction of unstable pelvic fractures. Further clinical studies should be conducted with larger patient samples to verify its safety and efficacy.


2009 ◽  
Vol 29 (2) ◽  
pp. 568-573 ◽  
Author(s):  
Xiu-fen YE ◽  
Bing QIAO ◽  
Shu-xiang GUO ◽  
Qing-chang GUO

Author(s):  
Qiangqiang Cheng ◽  
Peter X. Liu ◽  
Pinghua Lai ◽  
Shaoping Xu ◽  
Yanni Zou ◽  
...  

2014 ◽  
Vol 945-949 ◽  
pp. 1507-1512
Author(s):  
Yan Hong Fang ◽  
Feng Juan Huang ◽  
Bin Wu

To improve the viability and effectiveness of virtual surgery simulation in telemedicine development, a teleoperation virtual liver surgery simulation system with haptic feedback is studied in this paper. First, teleoperation system structure is designed. Then, key technologies of the system including remote robot controlling, virtual liver surgery simulation and telecommunication are studied. Experimental platform of virtual liver surgery was established based on vizard 4.0 and Sensable-phantom® desktopTM. Telecommunication system based on the Client/Server mode was established using the Microsoft Visual Studio 2008. The initial experiment results show that the system can provide a stable force to the human operator and can transmit remote virtual surgery simulation with a real time, which make a perfect foundation for the next implementation of teleoperation virtual liver surgery simulation system.


2011 ◽  
Vol 403-408 ◽  
pp. 2281-2284
Author(s):  
Yan Fei Liu ◽  
Xiao Yu Jiang ◽  
Feng Ting Shen

The paper researchs on the TCP/IP based Multi-Role virtual surgery simulation training system, which is an intelligent surgery simulation training platform .It make a comprehensive application of visual simulation technology, force feedback technology and Human-Computer interaction technology. Visual simulation technology includes virtual reality, artificial intelligence and dynamic modeling. The use of the TCP/IP interfaces expands the number of user and realizes Multi-Roles collaborative in the same virtual simulation surgery training.


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