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A Soft Tissue Acupuncture Model Based on Mass-Spring Force Ne

Computers, Materials & Continua 2021年第10期69卷 727-745页

作者： Xiaorui Zhang Tong Xu Wei Sun Jiali Duan Sunil Kumar Jha Jiangsu Engineering Center of Network Monitoring Engineering Research Center of Digital ForensicsMinistry of EducationSchool of Computer and SoftwareNanjing University of Information Science&TechnologyNanjing210044China Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET) Nanjing University of Information Science&TechnologyNanjing210044China Faculty of Information Technology University of Information Technology and ManagementRzeszow35-225Poland

In the simulation of acupuncture manipulation,it is necessary to accurately capture the information of acupuncture points and particles around ***,a soft tissue modeling method that can accurately track model particles is *** this paper,a soft tissue acupuncture model based on the mass-spring force net is *** is used as the auxiliary model and the SHF model is *** is used to establish a three-layer soft tissue model of skin,fat,and muscle,and a layer of the MSM based force network is covered on the surface of soft tissue to realize the complementary advantages and disadvantages of spherical harmonic function and *** addition,a springback algorithm is designed to simulate the springback phenomenon of soft tissue skin during *** evaluation results show that the soft tissue acupuncture modeling method based on mass-spring force net can effectively simulate the springback phenomenon of soft tissue surface during acupuncture surgery,and has good comprehensive performance in the application of virtual acupuncture surgery simulation.

关键词： Mass-spring model puncture simulation virtual surgery soft tissue simulation

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A Virtual puncture Surgery System Based on Multi-Layer Soft Tissue and Force Mesh

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Computers, Materials & Continua 2018年第12期57卷 505-519页

作者： Xiaorui Zhang Jiali Duan Lifeng Zhu Ladislav Kavan Jiangsu Engineering Center of Network Monitoring Nanjing University of Information Science&TechnologyNanjing210044China School of Instrument Science and Engineering Southeast UniversityNanjing210096China School of Computing University of UtahSalt Lake CityUT 84112-9205USA

puncture is a common operation in surgery,which involves all kinds of tissue materials with different geometry and mechanical *** a new cross-disciplinary research area,Virtual Surgery(VS)makes simulation of soft tissue in puncture operation possible in virtual *** this paper,we introduce a VS-based puncture system composed by three-layer soft tissue,simulated with spherical harmonic function(SHF),which is covered with a force mesh,constructed by mass spring model(MSM).The two models are combined together with a parameter of SHF named surface radius,which provides MSM with real-time deformation data needed in force ***,force calculation,divided into the surface spring force and the puncture damping force,makes the force presentation better accord to the corresponding tissue ***,a deformation resumption algorithm is leveraged to simulate the resumption phenomenon of the broken tissue *** evaluation experiment,several residents are invited to grades our model along with other four mainstream soft tissue models in terms of 7 different *** the evaluation,the scores are analyzed by a comprehensive weighted grading *** results show that the proposed model has better performance during puncture operation than other models,and can well simulate surface resumption phenomenon when tissue surface is broken.

关键词： puncture simulation spherical harmonic function mass spring model tissue surface resumption weighted grading evaluation

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