Research On Virtual Surgery Training System

With the development of computer science technology, an important application in modern medical field has been explored by the techniques of computer and medical-virtual surgery. The scene of surgery has been simulated by Virtual surgery operation. It can be used in many medical fields such as preoperative surgical planning and surgeon training. Without any doubts, virtual surgery has been playing a huge role in the field of medicine.In traditional surgical training, training objects like human bodies, animal or human models have many limitations and problems. The limitations have been conquered by the technique of virtual surgical. The whole process of surgery can be simulated by surgical training system, which will greatly improve the efficiency of learning surgery and reduce training costs. In order to promote and implement immersion virtual surgery system technology that builds a virtual surgery system based visualization platform in this thesis, this paper elaborates the following aspects to carry out the research of the virtual surgery system:First, OpenGL-based MFC single document program is carried out in the VC++6.0environment; According to the requirements of the operation, we have added variety of buttons such as mesh, particle and normal, force data output etc.Second, human horizontal slice like liver, stomach and kidney are3D reconstructed by Amira and3Ds Max8.0software. The reconstructed results are saved as3ds file format and imported into virtual surgical platform.Third, virtual object’s physical model has been created by the model of spring of particle. Simulation of deformation has achieved by this models so as to enhance the functions of medical palpation training;Fourth, a method of virtual model of soft tissue cutting based on Bezier curve for generate a smooth incision was proposed. Cutting simulation by this model has been achieved on the workstation.Fifth, using the library of haptic rendering-OpenHaptic and the hardware-PHANToM Omni force feedback device for interaction between virtual objects and human;The results show that setting up virtual surgery system based visualization platform to achieve a more realistic virtual surgery environment in this paper. Achieve the haptic interaction in three-dimension through computer and feedback device.